diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 823c95faebd2..c4564e1b42e6 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1376,8 +1376,8 @@ may allocate from based on an estimation of its current memory and swap use.
For example, if a task is using all allowed memory, its badness score will be
1000. If it is using half of its allowed memory, its score will be 500.
-There is an additional factor included in the badness score: root
-processes are given 3% extra memory over other tasks.
+There is an additional factor included in the badness score: the current memory
+and swap usage is discounted by 3% for root processes.
The amount of "allowed" memory depends on the context in which the oom killer
was called. If it is due to the memory assigned to the allocating task's cpuset
diff --git a/Makefile b/Makefile
index 49b64402f947..b9e092666bf9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 12
-SUBLEVEL = 10
+SUBLEVEL = 11
EXTRAVERSION =
NAME = One Giant Leap for Frogkind
diff --git a/arch/arm/mach-mvebu/mvebu-soc-id.c b/arch/arm/mach-mvebu/mvebu-soc-id.c
index fe4fc1cbdfaf..f3b325f6cbd4 100644
--- a/arch/arm/mach-mvebu/mvebu-soc-id.c
+++ b/arch/arm/mach-mvebu/mvebu-soc-id.c
@@ -88,7 +88,7 @@ static int __init mvebu_soc_id_init(void)
}
pci_base = of_iomap(child, 0);
- if (IS_ERR(pci_base)) {
+ if (pci_base == NULL) {
pr_err("cannot map registers\n");
ret = -ENOMEM;
goto res_ioremap;
diff --git a/arch/arm/plat-orion/irq.c b/arch/arm/plat-orion/irq.c
index c492e1b3dfdb..807df142444b 100644
--- a/arch/arm/plat-orion/irq.c
+++ b/arch/arm/plat-orion/irq.c
@@ -15,8 +15,51 @@
#include <linux/io.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <asm/exception.h>
#include <plat/irq.h>
#include <plat/orion-gpio.h>
+#include <mach/bridge-regs.h>
+
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+/*
+ * Compiling with both non-DT and DT support enabled, will
+ * break asm irq handler used by non-DT boards. Therefore,
+ * we provide a C-style irq handler even for non-DT boards,
+ * if MULTI_IRQ_HANDLER is set.
+ *
+ * Notes:
+ * - this is prepared for Kirkwood and Dove only, update
+ * accordingly if you add Orion5x or MV78x00.
+ * - Orion5x uses different macro names and has only one
+ * set of CAUSE/MASK registers.
+ * - MV78x00 uses the same macro names but has a third
+ * set of CAUSE/MASK registers.
+ *
+ */
+
+static void __iomem *orion_irq_base = IRQ_VIRT_BASE;
+
+asmlinkage void
+__exception_irq_entry orion_legacy_handle_irq(struct pt_regs *regs)
+{
+ u32 stat;
+
+ stat = readl_relaxed(orion_irq_base + IRQ_CAUSE_LOW_OFF);
+ stat &= readl_relaxed(orion_irq_base + IRQ_MASK_LOW_OFF);
+ if (stat) {
+ unsigned int hwirq = __fls(stat);
+ handle_IRQ(hwirq, regs);
+ return;
+ }
+ stat = readl_relaxed(orion_irq_base + IRQ_CAUSE_HIGH_OFF);
+ stat &= readl_relaxed(orion_irq_base + IRQ_MASK_HIGH_OFF);
+ if (stat) {
+ unsigned int hwirq = 32 + __fls(stat);
+ handle_IRQ(hwirq, regs);
+ return;
+ }
+}
+#endif
void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
{
@@ -35,6 +78,10 @@ void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
ct->chip.irq_unmask = irq_gc_mask_set_bit;
irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_MASK_CACHE,
IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE);
+
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+ set_handle_irq(orion_legacy_handle_irq);
+#endif
}
#ifdef CONFIG_OF
diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index 38b313909ac9..adad46e41a1d 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -13,6 +13,7 @@
#include <linux/kdebug.h>
#include <linux/irq.h>
#include <linux/io.h>
+#include <linux/sched.h>
#include <asm/cacheflush.h>
#include <asm/traps.h>
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 78f1f2ded86c..ffd4493efc78 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -281,7 +281,6 @@ long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
u32 dummy, u32 low, u32 high);
long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
u32 dummy, u32 low, u32 high);
-long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len);
long compat_sys_sync_file_range2(int fd, unsigned int flags,
u32 offset_lo, u32 offset_hi,
u32 nbytes_lo, u32 nbytes_hi);
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 0ecac257fb26..840c127a938e 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -121,7 +121,8 @@
/* Set of bits not changed in pte_modify */
#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \
- _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY)
+ _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY | \
+ _PAGE_SOFT_DIRTY)
#define _HPAGE_CHG_MASK (_PAGE_CHG_MASK | _PAGE_PSE)
#define _PAGE_CACHE_MASK (_PAGE_PCD | _PAGE_PWT)
diff --git a/arch/x86/xen/platform-pci-unplug.c b/arch/x86/xen/platform-pci-unplug.c
index 0a7852483ffe..ab84ac198a9a 100644
--- a/arch/x86/xen/platform-pci-unplug.c
+++ b/arch/x86/xen/platform-pci-unplug.c
@@ -69,6 +69,80 @@ static int check_platform_magic(void)
return 0;
}
+bool xen_has_pv_devices()
+{
+ if (!xen_domain())
+ return false;
+
+ /* PV domains always have them. */
+ if (xen_pv_domain())
+ return true;
+
+ /* And user has xen_platform_pci=0 set in guest config as
+ * driver did not modify the value. */
+ if (xen_platform_pci_unplug == 0)
+ return false;
+
+ if (xen_platform_pci_unplug & XEN_UNPLUG_NEVER)
+ return false;
+
+ if (xen_platform_pci_unplug & XEN_UNPLUG_ALL)
+ return true;
+
+ /* This is an odd one - we are going to run legacy
+ * and PV drivers at the same time. */
+ if (xen_platform_pci_unplug & XEN_UNPLUG_UNNECESSARY)
+ return true;
+
+ /* And the caller has to follow with xen_pv_{disk,nic}_devices
+ * to be certain which driver can load. */
+ return false;
+}
+EXPORT_SYMBOL_GPL(xen_has_pv_devices);
+
+static bool __xen_has_pv_device(int state)
+{
+ /* HVM domains might or might not */
+ if (xen_hvm_domain() && (xen_platform_pci_unplug & state))
+ return true;
+
+ return xen_has_pv_devices();
+}
+
+bool xen_has_pv_nic_devices(void)
+{
+ return __xen_has_pv_device(XEN_UNPLUG_ALL_NICS | XEN_UNPLUG_ALL);
+}
+EXPORT_SYMBOL_GPL(xen_has_pv_nic_devices);
+
+bool xen_has_pv_disk_devices(void)
+{
+ return __xen_has_pv_device(XEN_UNPLUG_ALL_IDE_DISKS |
+ XEN_UNPLUG_AUX_IDE_DISKS | XEN_UNPLUG_ALL);
+}
+EXPORT_SYMBOL_GPL(xen_has_pv_disk_devices);
+
+/*
+ * This one is odd - it determines whether you want to run PV _and_
+ * legacy (IDE) drivers together. This combination is only possible
+ * under HVM.
+ */
+bool xen_has_pv_and_legacy_disk_devices(void)
+{
+ if (!xen_domain())
+ return false;
+
+ /* N.B. This is only ever used in HVM mode */
+ if (xen_pv_domain())
+ return false;
+
+ if (xen_platform_pci_unplug & XEN_UNPLUG_UNNECESSARY)
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(xen_has_pv_and_legacy_disk_devices);
+
void xen_unplug_emulated_devices(void)
{
int r;
diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index 74bb74fa3f87..ea2d39dd912a 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -194,7 +194,7 @@ void __init platform_calibrate_ccount(void)
* Ethernet -- OpenCores Ethernet MAC (ethoc driver)
*/
-static struct resource ethoc_res[] __initdata = {
+static struct resource ethoc_res[] = {
[0] = { /* register space */
.start = OETH_REGS_PADDR,
.end = OETH_REGS_PADDR + OETH_REGS_SIZE - 1,
@@ -212,7 +212,7 @@ static struct resource ethoc_res[] __initdata = {
},
};
-static struct ethoc_platform_data ethoc_pdata __initdata = {
+static struct ethoc_platform_data ethoc_pdata = {
/*
* The MAC address for these boards is 00:50:c2:13:6f:xx.
* The last byte (here as zero) is read from the DIP switches on the
@@ -222,7 +222,7 @@ static struct ethoc_platform_data ethoc_pdata __initdata = {
.phy_id = -1,
};
-static struct platform_device ethoc_device __initdata = {
+static struct platform_device ethoc_device = {
.name = "ethoc",
.id = -1,
.num_resources = ARRAY_SIZE(ethoc_res),
@@ -236,13 +236,13 @@ static struct platform_device ethoc_device __initdata = {
* UART
*/
-static struct resource serial_resource __initdata = {
+static struct resource serial_resource = {
.start = DUART16552_PADDR,
.end = DUART16552_PADDR + 0x1f,
.flags = IORESOURCE_MEM,
};
-static struct plat_serial8250_port serial_platform_data[] __initdata = {
+static struct plat_serial8250_port serial_platform_data[] = {
[0] = {
.mapbase = DUART16552_PADDR,
.irq = DUART16552_INTNUM,
@@ -255,7 +255,7 @@ static struct plat_serial8250_port serial_platform_data[] __initdata = {
{ },
};
-static struct platform_device xtavnet_uart __initdata = {
+static struct platform_device xtavnet_uart = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 661a5b7f5104..7d83ef13186f 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -33,6 +33,7 @@
#include <linux/proc_fs.h>
#include <linux/acpi.h>
#include <linux/slab.h>
+#include <linux/regulator/machine.h>
#ifdef CONFIG_X86
#include <asm/mpspec.h>
#endif
@@ -575,6 +576,14 @@ void __init acpi_early_init(void)
goto error0;
}
+ /*
+ * If the system is using ACPI then we can be reasonably
+ * confident that any regulators are managed by the firmware
+ * so tell the regulator core it has everything it needs to
+ * know.
+ */
+ regulator_has_full_constraints();
+
return;
error0:
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index a4660bbee8a6..ed88b3c2e8ea 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1278,7 +1278,7 @@ static int blkfront_probe(struct xenbus_device *dev,
char *type;
int len;
/* no unplug has been done: do not hook devices != xen vbds */
- if (xen_platform_pci_unplug & XEN_UNPLUG_UNNECESSARY) {
+ if (xen_has_pv_and_legacy_disk_devices()) {
int major;
if (!VDEV_IS_EXTENDED(vdevice))
@@ -2022,7 +2022,7 @@ static int __init xlblk_init(void)
if (!xen_domain())
return -ENODEV;
- if (xen_hvm_domain() && !xen_platform_pci_unplug)
+ if (!xen_has_pv_disk_devices())
return -ENODEV;
if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) {
diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c
index 94c280d36e8b..afa9362f4f4d 100644
--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -17,6 +17,7 @@
#include <xen/xenbus.h>
#include <xen/page.h>
#include "tpm.h"
+#include <xen/platform_pci.h>
struct tpm_private {
struct tpm_chip *chip;
@@ -423,6 +424,9 @@ static int __init xen_tpmfront_init(void)
if (!xen_domain())
return -ENODEV;
+ if (!xen_has_pv_devices())
+ return -ENODEV;
+
return xenbus_register_frontend(&tpmfront_driver);
}
module_init(xen_tpmfront_init);
diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c
index 272a3ec35957..0314dde18a5d 100644
--- a/drivers/eisa/eisa-bus.c
+++ b/drivers/eisa/eisa-bus.c
@@ -275,11 +275,13 @@ static int __init eisa_request_resources(struct eisa_root_device *root,
}
if (slot) {
+ edev->res[i].name = NULL;
edev->res[i].start = SLOT_ADDRESS(root, slot)
+ (i * 0x400);
edev->res[i].end = edev->res[i].start + 0xff;
edev->res[i].flags = IORESOURCE_IO;
} else {
+ edev->res[i].name = NULL;
edev->res[i].start = SLOT_ADDRESS(root, slot)
+ EISA_VENDOR_ID_OFFSET;
edev->res[i].end = edev->res[i].start + 3;
@@ -326,19 +328,20 @@ static int __init eisa_probe(struct eisa_root_device *root)
return -ENOMEM;
}
- if (eisa_init_device(root, edev, 0)) {
+ if (eisa_request_resources(root, edev, 0)) {
+ dev_warn(root->dev,
+ "EISA: Cannot allocate resource for mainboard\n");
kfree(edev);
if (!root->force_probe)
- return -ENODEV;
+ return -EBUSY;
goto force_probe;
}
- if (eisa_request_resources(root, edev, 0)) {
- dev_warn(root->dev,
- "EISA: Cannot allocate resource for mainboard\n");
+ if (eisa_init_device(root, edev, 0)) {
+ eisa_release_resources(edev);
kfree(edev);
if (!root->force_probe)
- return -EBUSY;
+ return -ENODEV;
goto force_probe;
}
@@ -361,11 +364,6 @@ static int __init eisa_probe(struct eisa_root_device *root)
continue;
}
- if (eisa_init_device(root, edev, i)) {
- kfree(edev);
- continue;
- }
-
if (eisa_request_resources(root, edev, i)) {
dev_warn(root->dev,
"Cannot allocate resource for EISA slot %d\n",
@@ -374,6 +372,12 @@ static int __init eisa_probe(struct eisa_root_device *root)
continue;
}
+ if (eisa_init_device(root, edev, i)) {
+ eisa_release_resources(edev);
+ kfree(edev);
+ continue;
+ }
+
if (edev->state == (EISA_CONFIG_ENABLED | EISA_CONFIG_FORCED))
enabled_str = " (forced enabled)";
else if (edev->state == EISA_CONFIG_FORCED)
diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c
index 7b33e14e44aa..a28640f47c27 100644
--- a/drivers/gpu/drm/ast/ast_fb.c
+++ b/drivers/gpu/drm/ast/ast_fb.c
@@ -65,7 +65,7 @@ static void ast_dirty_update(struct ast_fbdev *afbdev,
* then the BO is being moved and we should
* store up the damage until later.
*/
- if (!in_interrupt())
+ if (drm_can_sleep())
ret = ast_bo_reserve(bo, true);
if (ret) {
if (ret != -EBUSY)
diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
index b27e95666fab..86d779a9c245 100644
--- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c
+++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
@@ -39,7 +39,7 @@ static void cirrus_dirty_update(struct cirrus_fbdev *afbdev,
* then the BO is being moved and we should
* store up the damage until later.
*/
- if (!in_interrupt())
+ if (drm_can_sleep())
ret = cirrus_bo_reserve(bo, true);
if (ret) {
if (ret != -EBUSY)
diff --git a/drivers/gpu/drm/cirrus/cirrus_mode.c b/drivers/gpu/drm/cirrus/cirrus_mode.c
index 60685b21cc36..379a47ea99f6 100644
--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -273,8 +273,8 @@ static int cirrus_crtc_mode_set(struct drm_crtc *crtc,
sr07 |= 0x11;
break;
case 16:
- sr07 |= 0xc1;
- hdr = 0xc0;
+ sr07 |= 0x17;
+ hdr = 0xc1;
break;
case 24:
sr07 |= 0x15;
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 49293bdc972a..da0c0080ac17 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -129,11 +129,12 @@ int drm_gem_object_init(struct drm_device *dev,
{
struct file *filp;
+ drm_gem_private_object_init(dev, obj, size);
+
filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
if (IS_ERR(filp))
return PTR_ERR(filp);
- drm_gem_private_object_init(dev, obj, size);
obj->filp = filp;
return 0;
diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c
index 24e8af3d22bf..386de2c9dc86 100644
--- a/drivers/gpu/drm/gma500/gma_display.c
+++ b/drivers/gpu/drm/gma500/gma_display.c
@@ -349,6 +349,7 @@ int gma_crtc_cursor_set(struct drm_crtc *crtc,
/* If we didn't get a handle then turn the cursor off */
if (!handle) {
temp = CURSOR_MODE_DISABLE;
+ mutex_lock(&dev->struct_mutex);
if (gma_power_begin(dev, false)) {
REG_WRITE(control, temp);
@@ -365,6 +366,7 @@ int gma_crtc_cursor_set(struct drm_crtc *crtc,
gma_crtc->cursor_obj = NULL;
}
+ mutex_unlock(&dev->struct_mutex);
return 0;
}
@@ -374,9 +376,12 @@ int gma_crtc_cursor_set(struct drm_crtc *crtc,
return -EINVAL;
}
+ mutex_lock(&dev->struct_mutex);
obj = drm_gem_object_lookup(dev, file_priv, handle);
- if (!obj)
- return -ENOENT;
+ if (!obj) {
+ ret = -ENOENT;
+ goto unlock;
+ }
if (obj->size < width * height * 4) {
dev_dbg(dev->dev, "Buffer is too small\n");
@@ -440,10 +445,13 @@ int gma_crtc_cursor_set(struct drm_crtc *crtc,
}
gma_crtc->cursor_obj = obj;
+unlock:
+ mutex_unlock(&dev->struct_mutex);
return ret;
unref_cursor:
drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
return ret;
}
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 5a25f2476c3b..50d42daae15f 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1683,6 +1683,7 @@ out_gem_unload:
intel_teardown_gmbus(dev);
intel_teardown_mchbar(dev);
+ pm_qos_remove_request(&dev_priv->pm_qos);
destroy_workqueue(dev_priv->wq);
out_mtrrfree:
arch_phys_wc_del(dev_priv->gtt.mtrr);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ab0f2c0a440c..881c9af0971d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -296,6 +296,7 @@ struct drm_i915_error_state {
u64 fence[I915_MAX_NUM_FENCES];
struct timeval time;
struct drm_i915_error_ring {
+ bool valid;
struct drm_i915_error_object {
int page_count;
u32 gtt_offset;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index e15a1d90037d..fe4a7d16e261 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -250,7 +250,7 @@ i915_pages_create_for_stolen(struct drm_device *dev,
}
sg = st->sgl;
- sg->offset = offset;
+ sg->offset = 0;
sg->length = size;
sg_dma_address(sg) = (dma_addr_t)dev_priv->mm.stolen_base + offset;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index dae364f0028c..354e3e32b30e 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -221,6 +221,9 @@ static void i915_ring_error_state(struct drm_i915_error_state_buf *m,
unsigned ring)
{
BUG_ON(ring >= I915_NUM_RINGS); /* shut up confused gcc */
+ if (!error->ring[ring].valid)
+ return;
+
err_printf(m, "%s command stream:\n", ring_str(ring));
err_printf(m, " HEAD: 0x%08x\n", error->head[ring]);
err_printf(m, " TAIL: 0x%08x\n", error->tail[ring]);
@@ -272,7 +275,6 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
struct drm_device *dev = error_priv->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_error_state *error = error_priv->error;
- struct intel_ring_buffer *ring;
int i, j, page, offset, elt;
if (!error) {
@@ -306,7 +308,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
if (INTEL_INFO(dev)->gen == 7)
err_printf(m, "ERR_INT: 0x%08x\n", error->err_int);
- for_each_ring(ring, dev_priv, i)
+ for (i = 0; i < ARRAY_SIZE(error->ring); i++)
i915_ring_error_state(m, dev, error, i);
if (error->active_bo)
@@ -363,8 +365,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
}
}
- obj = error->ring[i].ctx;
- if (obj) {
+ if ((obj = error->ring[i].ctx)) {
err_printf(m, "%s --- HW Context = 0x%08x\n",
dev_priv->ring[i].name,
obj->gtt_offset);
@@ -644,7 +645,8 @@ i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
return NULL;
obj = ring->scratch.obj;
- if (acthd >= i915_gem_obj_ggtt_offset(obj) &&
+ if (obj != NULL &&
+ acthd >= i915_gem_obj_ggtt_offset(obj) &&
acthd < i915_gem_obj_ggtt_offset(obj) + obj->base.size)
return i915_error_object_create(dev_priv, obj);
}
@@ -747,11 +749,17 @@ static void i915_gem_record_rings(struct drm_device *dev,
struct drm_i915_error_state *error)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring;
struct drm_i915_gem_request *request;
int i, count;
- for_each_ring(ring, dev_priv, i) {
+ for (i = 0; i < I915_NUM_RINGS; i++) {
+ struct intel_ring_buffer *ring = &dev_priv->ring[i];
+
+ if (ring->dev == NULL)
+ continue;
+
+ error->ring[i].valid = true;
+
i915_record_ring_state(dev, error, ring);
error->ring[i].batchbuffer =
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index ef9b35479f01..375abe708268 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1955,9 +1955,13 @@
* Please check the detailed lore in the commit message for for experimental
* evidence.
*/
-#define PORTD_HOTPLUG_LIVE_STATUS (1 << 29)
-#define PORTC_HOTPLUG_LIVE_STATUS (1 << 28)
-#define PORTB_HOTPLUG_LIVE_STATUS (1 << 27)
+#define PORTD_HOTPLUG_LIVE_STATUS_G4X (1 << 29)
+#define PORTC_HOTPLUG_LIVE_STATUS_G4X (1 << 28)
+#define PORTB_HOTPLUG_LIVE_STATUS_G4X (1 << 27)
+/* VLV DP/HDMI bits again match Bspec */
+#define PORTD_HOTPLUG_LIVE_STATUS_VLV (1 << 27)
+#define PORTC_HOTPLUG_LIVE_STATUS_VLV (1 << 28)
+#define PORTB_HOTPLUG_LIVE_STATUS_VLV (1 << 29)
#define PORTD_HOTPLUG_INT_STATUS (3 << 21)
#define PORTC_HOTPLUG_INT_STATUS (3 << 19)
#define PORTB_HOTPLUG_INT_STATUS (3 << 17)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1a431377d83b..5a97f7356843 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2803,18 +2803,34 @@ g4x_dp_detect(struct intel_dp *intel_dp)
return status;
}
- switch (intel_dig_port->port) {
- case PORT_B:
- bit = PORTB_HOTPLUG_LIVE_STATUS;
- break;
- case PORT_C:
- bit = PORTC_HOTPLUG_LIVE_STATUS;
- break;
- case PORT_D:
- bit = PORTD_HOTPLUG_LIVE_STATUS;
- break;
- default:
- return connector_status_unknown;
+ if (IS_VALLEYVIEW(dev)) {
+ switch (intel_dig_port->port) {
+ case PORT_B:
+ bit = PORTB_HOTPLUG_LIVE_STATUS_VLV;
+ break;
+ case PORT_C:
+ bit = PORTC_HOTPLUG_LIVE_STATUS_VLV;
+ break;
+ case PORT_D:
+ bit = PORTD_HOTPLUG_LIVE_STATUS_VLV;
+ break;
+ default:
+ return connector_status_unknown;
+ }
+ } else {
+ switch (intel_dig_port->port) {
+ case PORT_B:
+ bit = PORTB_HOTPLUG_LIVE_STATUS_G4X;
+ break;
+ case PORT_C:
+ bit = PORTC_HOTPLUG_LIVE_STATUS_G4X;
+ break;
+ case PORT_D:
+ bit = PORTD_HOTPLUG_LIVE_STATUS_G4X;
+ break;
+ default:
+ return connector_status_unknown;
+ }
}
if ((I915_READ(PORT_HOTPLUG_STAT) & bit) == 0)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 460ee1026fca..43719bbb2595 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1501,8 +1501,8 @@ intel_ring_alloc_seqno(struct intel_ring_buffer *ring)
return i915_gem_get_seqno(ring->dev, &ring->outstanding_lazy_request);
}
-static int __intel_ring_begin(struct intel_ring_buffer *ring,
- int bytes)
+static int __intel_ring_prepare(struct intel_ring_buffer *ring,
+ int bytes)
{
int ret;
@@ -1518,7 +1518,6 @@ static int __intel_ring_begin(struct intel_ring_buffer *ring,
return ret;
}
- ring->space -= bytes;
return 0;
}
@@ -1533,12 +1532,17 @@ int intel_ring_begin(struct intel_ring_buffer *ring,
if (ret)
return ret;
+ ret = __intel_ring_prepare(ring, num_dwords * sizeof(uint32_t));
+ if (ret)
+ return ret;
+
/* Preallocate the olr before touching the ring */
ret = intel_ring_alloc_seqno(ring);
if (ret)
return ret;
- return __intel_ring_begin(ring, num_dwords * sizeof(uint32_t));
+ ring->space -= num_dwords * sizeof(uint32_t);
+ return 0;
}
void intel_ring_init_seqno(struct intel_ring_buffer *ring, u32 seqno)
diff --git a/drivers/gpu/drm/mgag200/mgag200_cursor.c b/drivers/gpu/drm/mgag200/mgag200_cursor.c
index 801731aeab61..9f9780b7ddf0 100644
--- a/drivers/gpu/drm/mgag200/mgag200_cursor.c
+++ b/drivers/gpu/drm/mgag200/mgag200_cursor.c
@@ -22,8 +22,10 @@ static void mga_hide_cursor(struct mga_device *mdev)
{
WREG8(MGA_CURPOSXL, 0);
WREG8(MGA_CURPOSXH, 0);
- mgag200_bo_unpin(mdev->cursor.pixels_1);
- mgag200_bo_unpin(mdev->cursor.pixels_2);
+ if (mdev->cursor.pixels_1->pin_count)
+ mgag200_bo_unpin(mdev->cursor.pixels_1);
+ if (mdev->cursor.pixels_2->pin_count)
+ mgag200_bo_unpin(mdev->cursor.pixels_2);
}
int mga_crtc_cursor_set(struct drm_crtc *crtc,
@@ -32,7 +34,7 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
uint32_t width,
uint32_t height)
{
- struct drm_device *dev = (struct drm_device *)file_priv->minor->dev;
+ struct drm_device *dev = crtc->dev;
struct mga_device *mdev = (struct mga_device *)dev->dev_private;
struct mgag200_bo *pixels_1 = mdev->cursor.pixels_1;
struct mgag200_bo *pixels_2 = mdev->cursor.pixels_2;
diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c
index 964f58cee5ea..d29bb335cccc 100644
--- a/drivers/gpu/drm/mgag200/mgag200_fb.c
+++ b/drivers/gpu/drm/mgag200/mgag200_fb.c
@@ -41,7 +41,7 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev,
* then the BO is being moved and we should
* store up the damage until later.
*/
- if (!in_interrupt())
+ if (drm_can_sleep())
ret = mgag200_bo_reserve(bo, true);
if (ret) {
if (ret != -EBUSY)
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 503a414cbdad..1288cd9f67d1 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1521,11 +1521,11 @@ static int mga_vga_mode_valid(struct drm_connector *connector,
(mga_vga_calculate_mode_bandwidth(mode, bpp)
> (32700 * 1024))) {
return MODE_BANDWIDTH;
- } else if (mode->type == G200_EH &&
+ } else if (mdev->type == G200_EH &&
(mga_vga_calculate_mode_bandwidth(mode, bpp)
> (37500 * 1024))) {
return MODE_BANDWIDTH;
- } else if (mode->type == G200_ER &&
+ } else if (mdev->type == G200_ER &&
(mga_vga_calculate_mode_bandwidth(mode,
bpp) > (55000 * 1024))) {
return MODE_BANDWIDTH;
diff --git a/drivers/gpu/drm/nouveau/core/engine/falcon.c b/drivers/gpu/drm/nouveau/core/engine/falcon.c
index e03fc8e4dc1d..5e077e4ed7f6 100644
--- a/drivers/gpu/drm/nouveau/core/engine/falcon.c
+++ b/drivers/gpu/drm/nouveau/core/engine/falcon.c
@@ -56,6 +56,16 @@ _nouveau_falcon_wr32(struct nouveau_object *object, u64 addr, u32 data)
nv_wr32(falcon, falcon->addr + addr, data);
}
+static void *
+vmemdup(const void *src, size_t len)
+{
+ void *p = vmalloc(len);
+
+ if (p)
+ memcpy(p, src, len);
+ return p;
+}
+
int
_nouveau_falcon_init(struct nouveau_object *object)
{
@@ -111,7 +121,7 @@ _nouveau_falcon_init(struct nouveau_object *object)
ret = request_firmware(&fw, name, &device->pdev->dev);
if (ret == 0) {
- falcon->code.data = kmemdup(fw->data, fw->size, GFP_KERNEL);
+ falcon->code.data = vmemdup(fw->data, fw->size);
falcon->code.size = fw->size;
falcon->data.data = NULL;
falcon->data.size = 0;
@@ -134,7 +144,7 @@ _nouveau_falcon_init(struct nouveau_object *object)
return ret;
}
- falcon->data.data = kmemdup(fw->data, fw->size, GFP_KERNEL);
+ falcon->data.data = vmemdup(fw->data, fw->size);
falcon->data.size = fw->size;
release_firmware(fw);
if (!falcon->data.data)
@@ -149,7 +159,7 @@ _nouveau_falcon_init(struct nouveau_object *object)
return ret;
}
- falcon->code.data = kmemdup(fw->data, fw->size, GFP_KERNEL);
+ falcon->code.data = vmemdup(fw->data, fw->size);
falcon->code.size = fw->size;
release_firmware(fw);
if (!falcon->code.data)
@@ -235,8 +245,8 @@ _nouveau_falcon_fini(struct nouveau_object *object, bool suspend)
if (!suspend) {
nouveau_gpuobj_ref(NULL, &falcon->core);
if (falcon->external) {
- kfree(falcon->data.data);
- kfree(falcon->code.data);
+ vfree(falcon->data.data);
+ vfree(falcon->code.data);
falcon->code.data = NULL;
}
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 755c38d06271..60a97b6b908c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -802,25 +802,25 @@ nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
{
struct nouveau_mem *node = old_mem->mm_node;
- struct nouveau_bo *nvbo = nouveau_bo(bo);
u64 length = (new_mem->num_pages << PAGE_SHIFT);
u64 src_offset = node->vma[0].offset;
u64 dst_offset = node->vma[1].offset;
+ int src_tiled = !!node->memtype;
+ int dst_tiled = !!((struct nouveau_mem *)new_mem->mm_node)->memtype;
int ret;
while (length) {
u32 amount, stride, height;
+ ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled));
+ if (ret)
+ return ret;
+
amount = min(length, (u64)(4 * 1024 * 1024));
stride = 16 * 4;
height = amount / stride;
- if (old_mem->mem_type == TTM_PL_VRAM &&
- nouveau_bo_tile_layout(nvbo)) {
- ret = RING_SPACE(chan, 8);
- if (ret)
- return ret;
-
+ if (src_tiled) {
BEGIN_NV04(chan, NvSubCopy, 0x0200, 7);
OUT_RING (chan, 0);
OUT_RING (chan, 0);
@@ -830,19 +830,10 @@ nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
OUT_RING (chan, 0);
OUT_RING (chan, 0);
} else {
- ret = RING_SPACE(chan, 2);
- if (ret)
- return ret;
-
BEGIN_NV04(chan, NvSubCopy, 0x0200, 1);
OUT_RING (chan, 1);
}
- if (new_mem->mem_type == TTM_PL_VRAM &&
- nouveau_bo_tile_layout(nvbo)) {
- ret = RING_SPACE(chan, 8);
- if (ret)
- return ret;
-
+ if (dst_tiled) {
BEGIN_NV04(chan, NvSubCopy, 0x021c, 7);
OUT_RING (chan, 0);
OUT_RING (chan, 0);
@@ -852,18 +843,10 @@ nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
OUT_RING (chan, 0);
OUT_RING (chan, 0);
} else {
- ret = RING_SPACE(chan, 2);
- if (ret)
- return ret;
-
BEGIN_NV04(chan, NvSubCopy, 0x021c, 1);
OUT_RING (chan, 1);
}
- ret = RING_SPACE(chan, 14);
- if (ret)
- return ret;
-
BEGIN_NV04(chan, NvSubCopy, 0x0238, 2);
OUT_RING (chan, upper_32_bits(src_offset));
OUT_RING (chan, upper_32_bits(dst_offset));
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 368e1b84f429..0ee2cf5cf76e 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -209,6 +209,16 @@ static void atombios_enable_crtc_memreq(struct drm_crtc *crtc, int state)
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
}
+static const u32 vga_control_regs[6] =
+{
+ AVIVO_D1VGA_CONTROL,
+ AVIVO_D2VGA_CONTROL,
+ EVERGREEN_D3VGA_CONTROL,
+ EVERGREEN_D4VGA_CONTROL,
+ EVERGREEN_D5VGA_CONTROL,
+ EVERGREEN_D6VGA_CONTROL,
+};
+
static void atombios_blank_crtc(struct drm_crtc *crtc, int state)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
@@ -216,13 +226,23 @@ static void atombios_blank_crtc(struct drm_crtc *crtc, int state)
struct radeon_device *rdev = dev->dev_private;
int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC);
BLANK_CRTC_PS_ALLOCATION args;
+ u32 vga_control = 0;
memset(&args, 0, sizeof(args));
+ if (ASIC_IS_DCE8(rdev)) {
+ vga_control = RREG32(vga_control_regs[radeon_crtc->crtc_id]);
+ WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control | 1);
+ }
+
args.ucCRTC = radeon_crtc->crtc_id;
args.ucBlanking = state;
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+
+ if (ASIC_IS_DCE8(rdev)) {
+ WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control);
+ }
}
static void atombios_powergate_crtc(struct drm_crtc *crtc, int state)
@@ -938,11 +958,14 @@ static bool atombios_crtc_prepare_pll(struct drm_crtc *crtc, struct drm_display_
radeon_atombios_get_ppll_ss_info(rdev,
&radeon_crtc->ss,
ATOM_DP_SS_ID1);
- } else
+ } else {
radeon_crtc->ss_enabled =
radeon_atombios_get_ppll_ss_info(rdev,
&radeon_crtc->ss,
ATOM_DP_SS_ID1);
+ }
+ /* disable spread spectrum on DCE3 DP */
+ radeon_crtc->ss_enabled = false;
}
break;
case ATOM_ENCODER_MODE_LVDS:
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index b5c67a99dda9..ffb36c1ee005 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -4249,8 +4249,8 @@ void evergreen_disable_interrupt_state(struct radeon_device *rdev)
WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
}
- /* only one DAC on DCE6 */
- if (!ASIC_IS_DCE6(rdev))
+ /* only one DAC on DCE5 */
+ if (!ASIC_IS_DCE5(rdev))
WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
WREG32(DACB_AUTODETECT_INT_CONTROL, 0);
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index eb8ac315f92f..c7cac07f139b 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -967,7 +967,10 @@ static int evergreen_cs_track_check(struct radeon_cs_parser *p)
if (track->cb_dirty) {
tmp = track->cb_target_mask;
for (i = 0; i < 8; i++) {
- if ((tmp >> (i * 4)) & 0xF) {
+ u32 format = G_028C70_FORMAT(track->cb_color_info[i]);
+
+ if (format != V_028C70_COLOR_INVALID &&
+ (tmp >> (i * 4)) & 0xF) {
/* at least one component is enabled */
if (track->cb_color_bo[i] == NULL) {
dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 954eb9afbe71..b2dbd48f7f28 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1335,13 +1335,12 @@ void cayman_fence_ring_emit(struct radeon_device *rdev,
{
struct radeon_ring *ring = &rdev->ring[fence->ring];
u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
+ u32 cp_coher_cntl = PACKET3_FULL_CACHE_ENA | PACKET3_TC_ACTION_ENA |
+ PACKET3_SH_ACTION_ENA;
/* flush read cache over gart for this vmid */
- radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
- radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
- radeon_ring_write(ring, 0);
radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
- radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
+ radeon_ring_write(ring, PACKET3_ENGINE_ME | cp_coher_cntl);
radeon_ring_write(ring, 0xFFFFFFFF);
radeon_ring_write(ring, 0);
radeon_ring_write(ring, 10); /* poll interval */
@@ -1357,6 +1356,8 @@ void cayman_fence_ring_emit(struct radeon_device *rdev,
void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
{
struct radeon_ring *ring = &rdev->ring[ib->ring];
+ u32 cp_coher_cntl = PACKET3_FULL_CACHE_ENA | PACKET3_TC_ACTION_ENA |
+ PACKET3_SH_ACTION_ENA;
/* set to DX10/11 mode */
radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0));
@@ -1381,14 +1382,11 @@ void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
(ib->vm ? (ib->vm->id << 24) : 0));
/* flush read cache over gart for this vmid */
- radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
- radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
- radeon_ring_write(ring, ib->vm ? ib->vm->id : 0);
radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
- radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
+ radeon_ring_write(ring, PACKET3_ENGINE_ME | cp_coher_cntl);
radeon_ring_write(ring, 0xFFFFFFFF);
radeon_ring_write(ring, 0);
- radeon_ring_write(ring, 10); /* poll interval */
+ radeon_ring_write(ring, ((ib->vm ? ib->vm->id : 0) << 24) | 10); /* poll interval */
}
static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h
index 22421bc80c0d..d996033c243e 100644
--- a/drivers/gpu/drm/radeon/nid.h
+++ b/drivers/gpu/drm/radeon/nid.h
@@ -1154,6 +1154,7 @@
# define PACKET3_DB_ACTION_ENA (1 << 26)
# define PACKET3_SH_ACTION_ENA (1 << 27)
# define PACKET3_SX_ACTION_ENA (1 << 28)
+# define PACKET3_ENGINE_ME (1 << 31)
#define PACKET3_ME_INITIALIZE 0x44
#define PACKET3_ME_INITIALIZE_DEVICE_ID(x) ((x) << 16)
#define PACKET3_COND_WRITE 0x45
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index f9be22062df1..2acbf89cdfd3 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2554,14 +2554,17 @@ void r600_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence)
{
struct radeon_ring *ring = &rdev->ring[fence->ring];
+ u32 cp_coher_cntl = PACKET3_TC_ACTION_ENA | PACKET3_VC_ACTION_ENA |
+ PACKET3_SH_ACTION_ENA;
+
+ if (rdev->family >= CHIP_RV770)
+ cp_coher_cntl |= PACKET3_FULL_CACHE_ENA;
if (rdev->wb.use_event) {
u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
/* flush read cache over gart */
radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
- radeon_ring_write(ring, PACKET3_TC_ACTION_ENA |
- PACKET3_VC_ACTION_ENA |
- PACKET3_SH_ACTION_ENA);
+ radeon_ring_write(ring, cp_coher_cntl);
radeon_ring_write(ring, 0xFFFFFFFF);
radeon_ring_write(ring, 0);
radeon_ring_write(ring, 10); /* poll interval */
@@ -2575,9 +2578,7 @@ void r600_fence_ring_emit(struct radeon_device *rdev,
} else {
/* flush read cache over gart */
radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
- radeon_ring_write(ring, PACKET3_TC_ACTION_ENA |
- PACKET3_VC_ACTION_ENA |
- PACKET3_SH_ACTION_ENA);
+ radeon_ring_write(ring, cp_coher_cntl);
radeon_ring_write(ring, 0xFFFFFFFF);
radeon_ring_write(ring, 0);
radeon_ring_write(ring, 10); /* poll interval */
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 01a3ec83f284..745e66eacd47 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -749,7 +749,10 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
}
for (i = 0; i < 8; i++) {
- if ((tmp >> (i * 4)) & 0xF) {
+ u32 format = G_0280A0_FORMAT(track->cb_color_info[i]);
+
+ if (format != V_0280A0_COLOR_INVALID &&
+ (tmp >> (i * 4)) & 0xF) {
/* at least one component is enabled */
if (track->cb_color_bo[i] == NULL) {
dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index 7b3c7b5932c5..72484b4b679e 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -1547,6 +1547,7 @@
# define PACKET3_CP_DMA_CMD_DAIC (1 << 29)
#define PACKET3_SURFACE_SYNC 0x43
# define PACKET3_CB0_DEST_BASE_ENA (1 << 6)
+# define PACKET3_FULL_CACHE_ENA (1 << 20) /* r7xx+ only */
# define PACKET3_TC_ACTION_ENA (1 << 23)
# define PACKET3_VC_ACTION_ENA (1 << 24)
# define PACKET3_CB_ACTION_ENA (1 << 25)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 5c39bf7c3d88..dfa641277175 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -3944,6 +3944,10 @@ void radeon_atom_initialize_bios_scratch_regs(struct drm_device *dev)
/* tell the bios not to handle mode switching */
bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
+ /* clear the vbios dpms state */
+ if (ASIC_IS_DCE4(rdev))
+ bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
+
if (rdev->family >= CHIP_R600) {
WREG32(R600_BIOS_2_SCRATCH, bios_2_scratch);
WREG32(R600_BIOS_6_SCRATCH, bios_6_scratch);
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index fc60b74ee304..e24ca6ab96de 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -1020,6 +1020,9 @@ void radeon_i2c_destroy(struct radeon_i2c_chan *i2c)
/* Add the default buses */
void radeon_i2c_init(struct radeon_device *rdev)
{
+ if (radeon_hw_i2c)
+ DRM_INFO("hw_i2c forced on, you may experience display detection problems!\n");
+
if (rdev->is_atom_bios)
radeon_atombios_i2c_init(rdev);
else
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 4f6b7fc7ad3c..a0ec4bb9d896 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1024,8 +1024,10 @@ static void radeon_pm_resume_old(struct radeon_device *rdev)
rdev->pm.current_clock_mode_index = 0;
rdev->pm.current_sclk = rdev->pm.default_sclk;
rdev->pm.current_mclk = rdev->pm.default_mclk;
- rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
- rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci;
+ if (rdev->pm.power_state) {
+ rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
+ rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci;
+ }
if (rdev->pm.pm_method == PM_METHOD_DYNPM
&& rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) {
rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 1d029ccf428b..6d916fc93116 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -91,6 +91,7 @@ int radeon_uvd_init(struct radeon_device *rdev)
case CHIP_VERDE:
case CHIP_PITCAIRN:
case CHIP_ARUBA:
+ case CHIP_OLAND:
fw_name = FIRMWARE_TAHITI;
break;
diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c
index 374499db20c7..a239b30aaf9d 100644
--- a/drivers/gpu/drm/radeon/rv770_dpm.c
+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
@@ -2531,6 +2531,12 @@ bool rv770_dpm_vblank_too_short(struct radeon_device *rdev)
(rdev->pdev->subsystem_device == 0x1c42))
switch_limit = 200;
+ /* RV770 */
+ /* mclk switching doesn't seem to work reliably on desktop RV770s */
+ if ((rdev->family == CHIP_RV770) &&
+ !(rdev->flags & RADEON_IS_MOBILITY))
+ switch_limit = 0xffffffff; /* disable mclk switching */
+
if (vblank_time < switch_limit)
return true;
else
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 37acf938b779..3f39f15d48a6 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -5625,7 +5625,7 @@ static void si_disable_interrupt_state(struct radeon_device *rdev)
}
if (!ASIC_IS_NODCE(rdev)) {
- WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
+ WREG32(DAC_AUTODETECT_INT_CONTROL, 0);
tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
WREG32(DC_HPD1_INT_CONTROL, tmp);
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 6e23019cd110..205a96177f95 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -770,7 +770,7 @@
# define GRPH_PFLIP_INT_MASK (1 << 0)
# define GRPH_PFLIP_INT_TYPE (1 << 8)
-#define DACA_AUTODETECT_INT_CONTROL 0x66c8
+#define DAC_AUTODETECT_INT_CONTROL 0x67c8
#define DC_HPD1_INT_STATUS 0x601c
#define DC_HPD2_INT_STATUS 0x6028
diff --git a/drivers/gpu/drm/radeon/uvd_v2_2.c b/drivers/gpu/drm/radeon/uvd_v2_2.c
index b19ef4951085..824550db3fed 100644
--- a/drivers/gpu/drm/radeon/uvd_v2_2.c
+++ b/drivers/gpu/drm/radeon/uvd_v2_2.c
@@ -153,6 +153,7 @@ int uvd_v2_2_resume(struct radeon_device *rdev)
chip_id = 0x01000015;
break;
case CHIP_PITCAIRN:
+ case CHIP_OLAND:
chip_id = 0x01000016;
break;
case CHIP_ARUBA:
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index a9d24e4bf792..c9511fd2f501 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -371,7 +371,6 @@ static int rcar_du_crtc_mode_set(struct drm_crtc *crtc,
goto error;
rcrtc->plane->format = format;
- rcrtc->plane->pitch = crtc->fb->pitches[0];
rcrtc->plane->src_x = x;
rcrtc->plane->src_y = y;
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index 53000644733f..3fb69d9ae61b 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -104,6 +104,15 @@ void rcar_du_plane_update_base(struct rcar_du_plane *plane)
{
struct rcar_du_group *rgrp = plane->group;
unsigned int index = plane->hwindex;
+ u32 mwr;
+
+ /* Memory pitch (expressed in pixels) */
+ if (plane->format->planes == 2)
+ mwr = plane->pitch;
+ else
+ mwr = plane->pitch * 8 / plane->format->bpp;
+
+ rcar_du_plane_write(rgrp, index, PnMWR, mwr);
/* The Y position is expressed in raster line units and must be doubled
* for 32bpp formats, according to the R8A7790 datasheet. No mention of
@@ -133,6 +142,8 @@ void rcar_du_plane_compute_base(struct rcar_du_plane *plane,
{
struct drm_gem_cma_object *gem;
+ plane->pitch = fb->pitches[0];
+
gem = drm_fb_cma_get_gem_obj(fb, 0);
plane->dma[0] = gem->paddr + fb->offsets[0];
@@ -209,7 +220,6 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
struct rcar_du_group *rgrp = plane->group;
u32 ddcr2 = PnDDCR2_CODE;
u32 ddcr4;
- u32 mwr;
/* Data format
*
@@ -240,14 +250,6 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);
- /* Memory pitch (expressed in pixels) */
- if (plane->format->planes == 2)
- mwr = plane->pitch;
- else
- mwr = plane->pitch * 8 / plane->format->bpp;
-
- rcar_du_plane_write(rgrp, index, PnMWR, mwr);
-
/* Destination position and size */
rcar_du_plane_write(rgrp, index, PnDSXR, plane->width);
rcar_du_plane_write(rgrp, index, PnDSYR, plane->height);
@@ -309,7 +311,6 @@ rcar_du_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
rplane->crtc = crtc;
rplane->format = format;
- rplane->pitch = fb->pitches[0];
rplane->src_x = src_x >> 16;
rplane->src_y = src_y >> 16;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 599f6469a1eb..8b059eb09d9b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -1483,11 +1483,11 @@ int vmw_execbuf_process(struct drm_file *file_priv,
ret = vmw_cmd_check_all(dev_priv, sw_context, kernel_commands,
command_size);
if (unlikely(ret != 0))
- goto out_err;
+ goto out_err_nores;
ret = vmw_resources_reserve(sw_context);
if (unlikely(ret != 0))
- goto out_err;
+ goto out_err_nores;
ret = ttm_eu_reserve_buffers(&ticket, &sw_context->validate_nodes);
if (unlikely(ret != 0))
@@ -1569,10 +1569,11 @@ int vmw_execbuf_process(struct drm_file *file_priv,
return 0;
out_err:
- vmw_resource_relocations_free(&sw_context->res_relocations);
- vmw_free_relocations(sw_context);
ttm_eu_backoff_reservation(&ticket, &sw_context->validate_nodes);
+out_err_nores:
vmw_resource_list_unreserve(&sw_context->resource_list, true);
+ vmw_resource_relocations_free(&sw_context->res_relocations);
+ vmw_free_relocations(sw_context);
vmw_clear_validations(sw_context);
if (unlikely(dev_priv->pinned_bo != NULL &&
!dev_priv->query_cid_valid))
diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c
index d6c7fe7f88d5..3ad651c3356c 100644
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -57,13 +57,20 @@ static void qib_ud_loopback(struct qib_qp *sqp, struct qib_swqe *swqe)
struct qib_sge *sge;
struct ib_wc wc;
u32 length;
+ enum ib_qp_type sqptype, dqptype;
qp = qib_lookup_qpn(ibp, swqe->wr.wr.ud.remote_qpn);
if (!qp) {
ibp->n_pkt_drops++;
return;
}
- if (qp->ibqp.qp_type != sqp->ibqp.qp_type ||
+
+ sqptype = sqp->ibqp.qp_type == IB_QPT_GSI ?
+ IB_QPT_UD : sqp->ibqp.qp_type;
+ dqptype = qp->ibqp.qp_type == IB_QPT_GSI ?
+ IB_QPT_UD : qp->ibqp.qp_type;
+
+ if (dqptype != sqptype ||
!(ib_qib_state_ops[qp->state] & QIB_PROCESS_RECV_OK)) {
ibp->n_pkt_drops++;
goto drop;
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index e21c1816a8f9..fbfdc10573be 100644
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -29,6 +29,7 @@
#include <xen/interface/io/fbif.h>
#include <xen/interface/io/kbdif.h>
#include <xen/xenbus.h>
+#include <xen/platform_pci.h>
struct xenkbd_info {
struct input_dev *kbd;
@@ -380,6 +381,9 @@ static int __init xenkbd_init(void)
if (xen_initial_domain())
return -ENODEV;
+ if (!xen_has_pv_devices())
+ return -ENODEV;
+
return xenbus_register_frontend(&xenkbd_driver);
}
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 40203ada635e..cae5a0866046 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -917,7 +917,7 @@ static void dma_pte_free_level(struct dmar_domain *domain, int level,
/* If range covers entire pagetable, free it */
if (!(start_pfn > level_pfn ||
- last_pfn < level_pfn + level_size(level))) {
+ last_pfn < level_pfn + level_size(level) - 1)) {
dma_clear_pte(pte);
domain_flush_cache(domain, pte, sizeof(*pte));
free_pgtable_page(level_pte);
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 30b426ed744b..34d009728d81 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -176,8 +176,12 @@ config MD_FAULTY
source "drivers/md/bcache/Kconfig"
+config BLK_DEV_DM_BUILTIN
+ boolean
+
config BLK_DEV_DM
tristate "Device mapper support"
+ select BLK_DEV_DM_BUILTIN
---help---
Device-mapper is a low level volume manager. It works by allowing
people to specify mappings for ranges of logical sectors. Various
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index 2acc43fe0229..f26d83292579 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_MD_FAULTY) += faulty.o
obj-$(CONFIG_BCACHE) += bcache/
obj-$(CONFIG_BLK_DEV_MD) += md-mod.o
obj-$(CONFIG_BLK_DEV_DM) += dm-mod.o
+obj-$(CONFIG_BLK_DEV_DM_BUILTIN) += dm-builtin.o
obj-$(CONFIG_DM_BUFIO) += dm-bufio.o
obj-$(CONFIG_DM_BIO_PRISON) += dm-bio-prison.o
obj-$(CONFIG_DM_CRYPT) += dm-crypt.o
diff --git a/drivers/md/dm-builtin.c b/drivers/md/dm-builtin.c
new file mode 100644
index 000000000000..6c9049c51b2b
--- /dev/null
+++ b/drivers/md/dm-builtin.c
@@ -0,0 +1,48 @@
+#include "dm.h"
+
+/*
+ * The kobject release method must not be placed in the module itself,
+ * otherwise we are subject to module unload races.
+ *
+ * The release method is called when the last reference to the kobject is
+ * dropped. It may be called by any other kernel code that drops the last
+ * reference.
+ *
+ * The release method suffers from module unload race. We may prevent the
+ * module from being unloaded at the start of the release method (using
+ * increased module reference count or synchronizing against the release
+ * method), however there is no way to prevent the module from being
+ * unloaded at the end of the release method.
+ *
+ * If this code were placed in the dm module, the following race may
+ * happen:
+ * 1. Some other process takes a reference to dm kobject
+ * 2. The user issues ioctl function to unload the dm device
+ * 3. dm_sysfs_exit calls kobject_put, however the object is not released
+ * because of the other reference taken at step 1
+ * 4. dm_sysfs_exit waits on the completion
+ * 5. The other process that took the reference in step 1 drops it,
+ * dm_kobject_release is called from this process
+ * 6. dm_kobject_release calls complete()
+ * 7. a reschedule happens before dm_kobject_release returns
+ * 8. dm_sysfs_exit continues, the dm device is unloaded, module reference
+ * count is decremented
+ * 9. The user unloads the dm module
+ * 10. The other process that was rescheduled in step 7 continues to run,
+ * it is now executing code in unloaded module, so it crashes
+ *
+ * Note that if the process that takes the foreign reference to dm kobject
+ * has a low priority and the system is sufficiently loaded with
+ * higher-priority processes that prevent the low-priority process from
+ * being scheduled long enough, this bug may really happen.
+ *
+ * In order to fix this module unload race, we place the release method
+ * into a helper code that is compiled directly into the kernel.
+ */
+
+void dm_kobject_release(struct kobject *kobj)
+{
+ complete(dm_get_completion_from_kobject(kobj));
+}
+
+EXPORT_SYMBOL(dm_kobject_release);
diff --git a/drivers/md/dm-sysfs.c b/drivers/md/dm-sysfs.c
index 84d2b91e4efb..c62c5ab6aed5 100644
--- a/drivers/md/dm-sysfs.c
+++ b/drivers/md/dm-sysfs.c
@@ -86,6 +86,7 @@ static const struct sysfs_ops dm_sysfs_ops = {
static struct kobj_type dm_ktype = {
.sysfs_ops = &dm_sysfs_ops,
.default_attrs = dm_attrs,
+ .release = dm_kobject_release,
};
/*
@@ -104,5 +105,7 @@ int dm_sysfs_init(struct mapped_device *md)
*/
void dm_sysfs_exit(struct mapped_device *md)
{
- kobject_put(dm_kobject(md));
+ struct kobject *kobj = dm_kobject(md);
+ kobject_put(kobj);
+ wait_for_completion(dm_get_completion_from_kobject(kobj));
}
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 8a30ad54bd46..7da347665552 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -1349,6 +1349,12 @@ dm_thin_id dm_thin_dev_id(struct dm_thin_device *td)
return td->id;
}
+/*
+ * Check whether @time (of block creation) is older than @td's last snapshot.
+ * If so then the associated block is shared with the last snapshot device.
+ * Any block on a device created *after* the device last got snapshotted is
+ * necessarily not shared.
+ */
static bool __snapshotted_since(struct dm_thin_device *td, uint32_t time)
{
return td->snapshotted_time > time;
@@ -1458,6 +1464,20 @@ int dm_thin_remove_block(struct dm_thin_device *td, dm_block_t block)
return r;
}
+int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *result)
+{
+ int r;
+ uint32_t ref_count;
+
+ down_read(&pmd->root_lock);
+ r = dm_sm_get_count(pmd->data_sm, b, &ref_count);
+ if (!r)
+ *result = (ref_count != 0);
+ up_read(&pmd->root_lock);
+
+ return r;
+}
+
bool dm_thin_changed_this_transaction(struct dm_thin_device *td)
{
int r;
diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h
index 7bcc0e1d6238..2edf5dbac76a 100644
--- a/drivers/md/dm-thin-metadata.h
+++ b/drivers/md/dm-thin-metadata.h
@@ -181,6 +181,8 @@ int dm_pool_get_data_block_size(struct dm_pool_metadata *pmd, sector_t *result);
int dm_pool_get_data_dev_size(struct dm_pool_metadata *pmd, dm_block_t *result);
+int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *result);
+
/*
* Returns -ENOSPC if the new size is too small and already allocated
* blocks would be lost.
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index ee29037ffc2e..bc0c97d7921e 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -512,6 +512,7 @@ struct dm_thin_new_mapping {
unsigned quiesced:1;
unsigned prepared:1;
unsigned pass_discard:1;
+ unsigned definitely_not_shared:1;
struct thin_c *tc;
dm_block_t virt_block;
@@ -683,7 +684,15 @@ static void process_prepared_discard_passdown(struct dm_thin_new_mapping *m)
cell_defer_no_holder(tc, m->cell2);
if (m->pass_discard)
- remap_and_issue(tc, m->bio, m->data_block);
+ if (m->definitely_not_shared)
+ remap_and_issue(tc, m->bio, m->data_block);
+ else {
+ bool used = false;
+ if (dm_pool_block_is_used(tc->pool->pmd, m->data_block, &used) || used)
+ bio_endio(m->bio, 0);
+ else
+ remap_and_issue(tc, m->bio, m->data_block);
+ }
else
bio_endio(m->bio, 0);
@@ -751,13 +760,17 @@ static int ensure_next_mapping(struct pool *pool)
static struct dm_thin_new_mapping *get_next_mapping(struct pool *pool)
{
- struct dm_thin_new_mapping *r = pool->next_mapping;
+ struct dm_thin_new_mapping *m = pool->next_mapping;
BUG_ON(!pool->next_mapping);
+ memset(m, 0, sizeof(struct dm_thin_new_mapping));
+ INIT_LIST_HEAD(&m->list);
+ m->bio = NULL;
+
pool->next_mapping = NULL;
- return r;
+ return m;
}
static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
@@ -769,15 +782,10 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
struct pool *pool = tc->pool;
struct dm_thin_new_mapping *m = get_next_mapping(pool);
- INIT_LIST_HEAD(&m->list);
- m->quiesced = 0;
- m->prepared = 0;
m->tc = tc;
m->virt_block = virt_block;
m->data_block = data_dest;
m->cell = cell;
- m->err = 0;
- m->bio = NULL;
if (!dm_deferred_set_add_work(pool->shared_read_ds, &m->list))
m->quiesced = 1;
@@ -840,15 +848,12 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
struct pool *pool = tc->pool;
struct dm_thin_new_mapping *m = get_next_mapping(pool);
- INIT_LIST_HEAD(&m->list);
m->quiesced = 1;
m->prepared = 0;
m->tc = tc;
m->virt_block = virt_block;
m->data_block = data_block;
m->cell = cell;
- m->err = 0;
- m->bio = NULL;
/*
* If the whole block of data is being overwritten or we are not
@@ -1040,12 +1045,12 @@ static void process_discard(struct thin_c *tc, struct bio *bio)
*/
m = get_next_mapping(pool);
m->tc = tc;
- m->pass_discard = (!lookup_result.shared) && pool->pf.discard_passdown;
+ m->pass_discard = pool->pf.discard_passdown;
+ m->definitely_not_shared = !lookup_result.shared;
m->virt_block = block;
m->data_block = lookup_result.block;
m->cell = cell;
m->cell2 = cell2;
- m->err = 0;
m->bio = bio;
if (!dm_deferred_set_add_work(pool->all_io_ds, &m->list)) {
@@ -1390,16 +1395,16 @@ static enum pool_mode get_pool_mode(struct pool *pool)
return pool->pf.mode;
}
-static void set_pool_mode(struct pool *pool, enum pool_mode mode)
+static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
{
int r;
+ enum pool_mode old_mode = pool->pf.mode;
- pool->pf.mode = mode;
-
- switch (mode) {
+ switch (new_mode) {
case PM_FAIL:
- DMERR("%s: switching pool to failure mode",
- dm_device_name(pool->pool_md));
+ if (old_mode != new_mode)
+ DMERR("%s: switching pool to failure mode",
+ dm_device_name(pool->pool_md));
dm_pool_metadata_read_only(pool->pmd);
pool->process_bio = process_bio_fail;
pool->process_discard = process_bio_fail;
@@ -1408,13 +1413,15 @@ static void set_pool_mode(struct pool *pool, enum pool_mode mode)
break;
case PM_READ_ONLY:
- DMERR("%s: switching pool to read-only mode",
- dm_device_name(pool->pool_md));
+ if (old_mode != new_mode)
+ DMERR("%s: switching pool to read-only mode",
+ dm_device_name(pool->pool_md));
r = dm_pool_abort_metadata(pool->pmd);
if (r) {
DMERR("%s: aborting transaction failed",
dm_device_name(pool->pool_md));
- set_pool_mode(pool, PM_FAIL);
+ new_mode = PM_FAIL;
+ set_pool_mode(pool, new_mode);
} else {
dm_pool_metadata_read_only(pool->pmd);
pool->process_bio = process_bio_read_only;
@@ -1425,6 +1432,9 @@ static void set_pool_mode(struct pool *pool, enum pool_mode mode)
break;
case PM_WRITE:
+ if (old_mode != new_mode)
+ DMINFO("%s: switching pool to write mode",
+ dm_device_name(pool->pool_md));
dm_pool_metadata_read_write(pool->pmd);
pool->process_bio = process_bio;
pool->process_discard = process_discard;
@@ -1432,6 +1442,8 @@ static void set_pool_mode(struct pool *pool, enum pool_mode mode)
pool->process_prepared_discard = process_prepared_discard;
break;
}
+
+ pool->pf.mode = new_mode;
}
/*----------------------------------------------------------------*/
@@ -1648,6 +1660,17 @@ static int bind_control_target(struct pool *pool, struct dm_target *ti)
enum pool_mode new_mode = pt->adjusted_pf.mode;
/*
+ * Don't change the pool's mode until set_pool_mode() below.
+ * Otherwise the pool's process_* function pointers may
+ * not match the desired pool mode.
+ */
+ pt->adjusted_pf.mode = old_mode;
+
+ pool->ti = ti;
+ pool->pf = pt->adjusted_pf;
+ pool->low_water_blocks = pt->low_water_blocks;
+
+ /*
* If we were in PM_FAIL mode, rollback of metadata failed. We're
* not going to recover without a thin_repair. So we never let the
* pool move out of the old mode. On the other hand a PM_READ_ONLY
@@ -1657,10 +1680,6 @@ static int bind_control_target(struct pool *pool, struct dm_target *ti)
if (old_mode == PM_FAIL)
new_mode = old_mode;
- pool->ti = ti;
- pool->low_water_blocks = pt->low_water_blocks;
- pool->pf = pt->adjusted_pf;
-
set_pool_mode(pool, new_mode);
return 0;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index b3e26c7d1417..a562d5a4fa9d 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -194,8 +194,8 @@ struct mapped_device {
/* forced geometry settings */
struct hd_geometry geometry;
- /* sysfs handle */
- struct kobject kobj;
+ /* kobject and completion */
+ struct dm_kobject_holder kobj_holder;
/* zero-length flush that will be cloned and submitted to targets */
struct bio flush_bio;
@@ -2005,6 +2005,7 @@ static struct mapped_device *alloc_dev(int minor)
init_waitqueue_head(&md->wait);
INIT_WORK(&md->work, dm_wq_work);
init_waitqueue_head(&md->eventq);
+ init_completion(&md->kobj_holder.completion);
md->disk->major = _major;
md->disk->first_minor = minor;
@@ -2866,20 +2867,14 @@ struct gendisk *dm_disk(struct mapped_device *md)
struct kobject *dm_kobject(struct mapped_device *md)
{
- return &md->kobj;
+ return &md->kobj_holder.kobj;
}
-/*
- * struct mapped_device should not be exported outside of dm.c
- * so use this check to verify that kobj is part of md structure
- */
struct mapped_device *dm_get_from_kobject(struct kobject *kobj)
{
struct mapped_device *md;
- md = container_of(kobj, struct mapped_device, kobj);
- if (&md->kobj != kobj)
- return NULL;
+ md = container_of(kobj, struct mapped_device, kobj_holder.kobj);
if (test_bit(DMF_FREEING, &md->flags) ||
dm_deleting_md(md))
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 1d1ad7b7e527..a8db73cc708f 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -15,6 +15,8 @@
#include <linux/list.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
+#include <linux/completion.h>
+#include <linux/kobject.h>
#include "dm-stats.h"
@@ -138,12 +140,27 @@ void dm_interface_exit(void);
/*
* sysfs interface
*/
+struct dm_kobject_holder {
+ struct kobject kobj;
+ struct completion completion;
+};
+
+static inline struct completion *dm_get_completion_from_kobject(struct kobject *kobj)
+{
+ return &container_of(kobj, struct dm_kobject_holder, kobj)->completion;
+}
+
int dm_sysfs_init(struct mapped_device *md);
void dm_sysfs_exit(struct mapped_device *md);
struct kobject *dm_kobject(struct mapped_device *md);
struct mapped_device *dm_get_from_kobject(struct kobject *kobj);
/*
+ * The kobject helper
+ */
+void dm_kobject_release(struct kobject *kobj);
+
+/*
* Targets for linear and striped mappings
*/
int dm_linear_init(void);
diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c
index 466a60bbd716..aacbe70c2c2e 100644
--- a/drivers/md/persistent-data/dm-space-map-common.c
+++ b/drivers/md/persistent-data/dm-space-map-common.c
@@ -245,6 +245,10 @@ int sm_ll_extend(struct ll_disk *ll, dm_block_t extra_blocks)
return -EINVAL;
}
+ /*
+ * We need to set this before the dm_tm_new_block() call below.
+ */
+ ll->nr_blocks = nr_blocks;
for (i = old_blocks; i < blocks; i++) {
struct dm_block *b;
struct disk_index_entry idx;
@@ -252,6 +256,7 @@ int sm_ll_extend(struct ll_disk *ll, dm_block_t extra_blocks)
r = dm_tm_new_block(ll->tm, &dm_sm_bitmap_validator, &b);
if (r < 0)
return r;
+
idx.blocknr = cpu_to_le64(dm_block_location(b));
r = dm_tm_unlock(ll->tm, b);
@@ -266,7 +271,6 @@ int sm_ll_extend(struct ll_disk *ll, dm_block_t extra_blocks)
return r;
}
- ll->nr_blocks = nr_blocks;
return 0;
}
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 58fc1eef7499..afb419e514bf 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -608,20 +608,38 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
* Flick into a mode where all blocks get allocated in the new area.
*/
smm->begin = old_len;
- memcpy(&smm->sm, &bootstrap_ops, sizeof(smm->sm));
+ memcpy(sm, &bootstrap_ops, sizeof(*sm));
/*
* Extend.
*/
r = sm_ll_extend(&smm->ll, extra_blocks);
+ if (r)
+ goto out;
/*
- * Switch back to normal behaviour.
+ * We repeatedly increment then commit until the commit doesn't
+ * allocate any new blocks.
*/
- memcpy(&smm->sm, &ops, sizeof(smm->sm));
- for (i = old_len; !r && i < smm->begin; i++)
- r = sm_ll_inc(&smm->ll, i, &ev);
+ do {
+ for (i = old_len; !r && i < smm->begin; i++) {
+ r = sm_ll_inc(&smm->ll, i, &ev);
+ if (r)
+ goto out;
+ }
+ old_len = smm->begin;
+
+ r = sm_ll_commit(&smm->ll);
+ if (r)
+ goto out;
+
+ } while (old_len != smm->begin);
+out:
+ /*
+ * Switch back to normal behaviour.
+ */
+ memcpy(sm, &ops, sizeof(*sm));
return r;
}
diff --git a/drivers/media/dvb-core/dvb-usb-ids.h b/drivers/media/dvb-core/dvb-usb-ids.h
index 419a2d6b4349..7e0f61930a12 100644
--- a/drivers/media/dvb-core/dvb-usb-ids.h
+++ b/drivers/media/dvb-core/dvb-usb-ids.h
@@ -239,6 +239,7 @@
#define USB_PID_AVERMEDIA_A835B_4835 0x4835
#define USB_PID_AVERMEDIA_1867 0x1867
#define USB_PID_AVERMEDIA_A867 0xa867
+#define USB_PID_AVERMEDIA_H335 0x0335
#define USB_PID_AVERMEDIA_TWINSTAR 0x0825
#define USB_PID_TECHNOTREND_CONNECT_S2400 0x3006
#define USB_PID_TECHNOTREND_CONNECT_S2400_8KEEPROM 0x3009
diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c
index 90536147bf04..ccac8467a28b 100644
--- a/drivers/media/dvb-frontends/dib8000.c
+++ b/drivers/media/dvb-frontends/dib8000.c
@@ -157,15 +157,10 @@ static u16 dib8000_i2c_read16(struct i2c_device *i2c, u16 reg)
return ret;
}
-static u16 dib8000_read_word(struct dib8000_state *state, u16 reg)
+static u16 __dib8000_read_word(struct dib8000_state *state, u16 reg)
{
u16 ret;
- if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
- dprintk("could not acquire lock");
- return 0;
- }
-
state->i2c_write_buffer[0] = reg >> 8;
state->i2c_write_buffer[1] = reg & 0xff;
@@ -183,6 +178,21 @@ static u16 dib8000_read_word(struct dib8000_state *state, u16 reg)
dprintk("i2c read error on %d", reg);
ret = (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1];
+
+ return ret;
+}
+
+static u16 dib8000_read_word(struct dib8000_state *state, u16 reg)
+{
+ u16 ret;
+
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
+ ret = __dib8000_read_word(state, reg);
+
mutex_unlock(&state->i2c_buffer_lock);
return ret;
@@ -192,8 +202,15 @@ static u32 dib8000_read32(struct dib8000_state *state, u16 reg)
{
u16 rw[2];
- rw[0] = dib8000_read_word(state, reg + 0);
- rw[1] = dib8000_read_word(state, reg + 1);
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock");
+ return 0;
+ }
+
+ rw[0] = __dib8000_read_word(state, reg + 0);
+ rw[1] = __dib8000_read_word(state, reg + 1);
+
+ mutex_unlock(&state->i2c_buffer_lock);
return ((rw[0] << 16) | (rw[1]));
}
@@ -2445,7 +2462,8 @@ static int dib8000_autosearch_start(struct dvb_frontend *fe)
if (state->revision == 0x8090)
internal = dib8000_read32(state, 23) / 1000;
- if (state->autosearch_state == AS_SEARCHING_FFT) {
+ if ((state->revision >= 0x8002) &&
+ (state->autosearch_state == AS_SEARCHING_FFT)) {
dib8000_write_word(state, 37, 0x0065); /* P_ctrl_pha_off_max default values */
dib8000_write_word(state, 116, 0x0000); /* P_ana_gain to 0 */
@@ -2481,7 +2499,8 @@ static int dib8000_autosearch_start(struct dvb_frontend *fe)
dib8000_write_word(state, 770, (dib8000_read_word(state, 770) & 0xdfff) | (1 << 13)); /* P_restart_ccg = 1 */
dib8000_write_word(state, 770, (dib8000_read_word(state, 770) & 0xdfff) | (0 << 13)); /* P_restart_ccg = 0 */
dib8000_write_word(state, 0, (dib8000_read_word(state, 0) & 0x7ff) | (0 << 15) | (1 << 13)); /* P_restart_search = 0; */
- } else if (state->autosearch_state == AS_SEARCHING_GUARD) {
+ } else if ((state->revision >= 0x8002) &&
+ (state->autosearch_state == AS_SEARCHING_GUARD)) {
c->transmission_mode = TRANSMISSION_MODE_8K;
c->guard_interval = GUARD_INTERVAL_1_8;
c->inversion = 0;
@@ -2583,7 +2602,8 @@ static int dib8000_autosearch_irq(struct dvb_frontend *fe)
struct dib8000_state *state = fe->demodulator_priv;
u16 irq_pending = dib8000_read_word(state, 1284);
- if (state->autosearch_state == AS_SEARCHING_FFT) {
+ if ((state->revision >= 0x8002) &&
+ (state->autosearch_state == AS_SEARCHING_FFT)) {
if (irq_pending & 0x1) {
dprintk("dib8000_autosearch_irq: max correlation result available");
return 3;
diff --git a/drivers/media/dvb-frontends/m88rs2000.c b/drivers/media/dvb-frontends/m88rs2000.c
index 4da5272075cb..02699c111019 100644
--- a/drivers/media/dvb-frontends/m88rs2000.c
+++ b/drivers/media/dvb-frontends/m88rs2000.c
@@ -110,28 +110,94 @@ static u8 m88rs2000_readreg(struct m88rs2000_state *state, u8 reg)
return b1[0];
}
+static u32 m88rs2000_get_mclk(struct dvb_frontend *fe)
+{
+ struct m88rs2000_state *state = fe->demodulator_priv;
+ u32 mclk;
+ u8 reg;
+ /* Must not be 0x00 or 0xff */
+ reg = m88rs2000_readreg(state, 0x86);
+ if (!reg || reg == 0xff)
+ return 0;
+
+ reg /= 2;
+ reg += 1;
+
+ mclk = (u32)(reg * RS2000_FE_CRYSTAL_KHZ + 28 / 2) / 28;
+
+ return mclk;
+}
+
+static int m88rs2000_set_carrieroffset(struct dvb_frontend *fe, s16 offset)
+{
+ struct m88rs2000_state *state = fe->demodulator_priv;
+ u32 mclk;
+ s32 tmp;
+ u8 reg;
+ int ret;
+
+ mclk = m88rs2000_get_mclk(fe);
+ if (!mclk)
+ return -EINVAL;
+
+ tmp = (offset * 4096 + (s32)mclk / 2) / (s32)mclk;
+ if (tmp < 0)
+ tmp += 4096;
+
+ /* Carrier Offset */
+ ret = m88rs2000_writereg(state, 0x9c, (u8)(tmp >> 4));
+
+ reg = m88rs2000_readreg(state, 0x9d);
+ reg &= 0xf;
+ reg |= (u8)(tmp & 0xf) << 4;
+
+ ret |= m88rs2000_writereg(state, 0x9d, reg);
+
+ return ret;
+}
+
static int m88rs2000_set_symbolrate(struct dvb_frontend *fe, u32 srate)
{
struct m88rs2000_state *state = fe->demodulator_priv;
int ret;
- u32 temp;
+ u64 temp;
+ u32 mclk;
u8 b[3];
if ((srate < 1000000) || (srate > 45000000))
return -EINVAL;
+ mclk = m88rs2000_get_mclk(fe);
+ if (!mclk)
+ return -EINVAL;
+
temp = srate / 1000;
- temp *= 11831;
- temp /= 68;
- temp -= 3;
+ temp *= 1 << 24;
+
+ do_div(temp, mclk);
b[0] = (u8) (temp >> 16) & 0xff;
b[1] = (u8) (temp >> 8) & 0xff;
b[2] = (u8) temp & 0xff;
+
ret = m88rs2000_writereg(state, 0x93, b[2]);
ret |= m88rs2000_writereg(state, 0x94, b[1]);
ret |= m88rs2000_writereg(state, 0x95, b[0]);
+ if (srate > 10000000)
+ ret |= m88rs2000_writereg(state, 0xa0, 0x20);
+ else
+ ret |= m88rs2000_writereg(state, 0xa0, 0x60);
+
+ ret |= m88rs2000_writereg(state, 0xa1, 0xe0);
+
+ if (srate > 12000000)
+ ret |= m88rs2000_writereg(state, 0xa3, 0x20);
+ else if (srate > 2800000)
+ ret |= m88rs2000_writereg(state, 0xa3, 0x98);
+ else
+ ret |= m88rs2000_writereg(state, 0xa3, 0x90);
+
deb_info("m88rs2000: m88rs2000_set_symbolrate\n");
return ret;
}
@@ -261,8 +327,6 @@ struct inittab m88rs2000_shutdown[] = {
struct inittab fe_reset[] = {
{DEMOD_WRITE, 0x00, 0x01},
- {DEMOD_WRITE, 0xf1, 0xbf},
- {DEMOD_WRITE, 0x00, 0x01},
{DEMOD_WRITE, 0x20, 0x81},
{DEMOD_WRITE, 0x21, 0x80},
{DEMOD_WRITE, 0x10, 0x33},
@@ -305,9 +369,6 @@ struct inittab fe_trigger[] = {
{DEMOD_WRITE, 0x9b, 0x64},
{DEMOD_WRITE, 0x9e, 0x00},
{DEMOD_WRITE, 0x9f, 0xf8},
- {DEMOD_WRITE, 0xa0, 0x20},
- {DEMOD_WRITE, 0xa1, 0xe0},
- {DEMOD_WRITE, 0xa3, 0x38},
{DEMOD_WRITE, 0x98, 0xff},
{DEMOD_WRITE, 0xc0, 0x0f},
{DEMOD_WRITE, 0x89, 0x01},
@@ -540,9 +601,8 @@ static int m88rs2000_set_frontend(struct dvb_frontend *fe)
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
fe_status_t status;
int i, ret = 0;
- s32 tmp;
u32 tuner_freq;
- u16 offset = 0;
+ s16 offset = 0;
u8 reg;
state->no_lock_count = 0;
@@ -567,29 +627,26 @@ static int m88rs2000_set_frontend(struct dvb_frontend *fe)
if (ret < 0)
return -ENODEV;
- offset = tuner_freq - c->frequency;
-
- /* calculate offset assuming 96000kHz*/
- tmp = offset;
- tmp *= 65536;
-
- tmp = (2 * tmp + 96000) / (2 * 96000);
- if (tmp < 0)
- tmp += 65536;
+ offset = (s16)((s32)tuner_freq - c->frequency);
- offset = tmp & 0xffff;
+ /* default mclk value 96.4285 * 2 * 1000 = 192857 */
+ if (((c->frequency % 192857) >= (192857 - 3000)) ||
+ (c->frequency % 192857) <= 3000)
+ ret = m88rs2000_writereg(state, 0x86, 0xc2);
+ else
+ ret = m88rs2000_writereg(state, 0x86, 0xc6);
- ret = m88rs2000_writereg(state, 0x9a, 0x30);
- /* Unknown usually 0xc6 sometimes 0xc1 */
- reg = m88rs2000_readreg(state, 0x86);
- ret |= m88rs2000_writereg(state, 0x86, reg);
- /* Offset lower nibble always 0 */
- ret |= m88rs2000_writereg(state, 0x9c, (offset >> 8));
- ret |= m88rs2000_writereg(state, 0x9d, offset & 0xf0);
+ ret |= m88rs2000_set_carrieroffset(fe, offset);
+ if (ret < 0)
+ return -ENODEV;
+ /* Reset demod by symbol rate */
+ if (c->symbol_rate > 27500000)
+ ret = m88rs2000_writereg(state, 0xf1, 0xa4);
+ else
+ ret = m88rs2000_writereg(state, 0xf1, 0xbf);
- /* Reset Demod */
- ret = m88rs2000_tab_set(state, fe_reset);
+ ret |= m88rs2000_tab_set(state, fe_reset);
if (ret < 0)
return -ENODEV;
diff --git a/drivers/media/dvb-frontends/m88rs2000.h b/drivers/media/dvb-frontends/m88rs2000.h
index 14ce31e76ae6..0a50ea90736b 100644
--- a/drivers/media/dvb-frontends/m88rs2000.h
+++ b/drivers/media/dvb-frontends/m88rs2000.h
@@ -53,6 +53,8 @@ static inline struct dvb_frontend *m88rs2000_attach(
}
#endif /* CONFIG_DVB_M88RS2000 */
+#define RS2000_FE_CRYSTAL_KHZ 27000
+
enum {
DEMOD_WRITE = 0x1,
WRITE_DELAY = 0x10,
diff --git a/drivers/media/dvb-frontends/nxt200x.c b/drivers/media/dvb-frontends/nxt200x.c
index fbca9856313a..4bf057544607 100644
--- a/drivers/media/dvb-frontends/nxt200x.c
+++ b/drivers/media/dvb-frontends/nxt200x.c
@@ -40,7 +40,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
/* Max transfer size done by I2C transfer functions */
-#define MAX_XFER_SIZE 64
+#define MAX_XFER_SIZE 256
#define NXT2002_DEFAULT_FIRMWARE "dvb-fe-nxt2002.fw"
#define NXT2004_DEFAULT_FIRMWARE "dvb-fe-nxt2004.fw"
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 084263dd126f..4a521a9a6e9d 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -177,21 +177,6 @@ unlock:
mutex_unlock(&dev->mfc_mutex);
}
-static enum s5p_mfc_node_type s5p_mfc_get_node_type(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
-
- if (!vdev) {
- mfc_err("failed to get video_device");
- return MFCNODE_INVALID;
- }
- if (vdev->index == 0)
- return MFCNODE_DECODER;
- else if (vdev->index == 1)
- return MFCNODE_ENCODER;
- return MFCNODE_INVALID;
-}
-
static void s5p_mfc_clear_int_flags(struct s5p_mfc_dev *dev)
{
mfc_write(dev, 0, S5P_FIMV_RISC_HOST_INT);
@@ -701,6 +686,7 @@ irq_cleanup_hw:
/* Open an MFC node */
static int s5p_mfc_open(struct file *file)
{
+ struct video_device *vdev = video_devdata(file);
struct s5p_mfc_dev *dev = video_drvdata(file);
struct s5p_mfc_ctx *ctx = NULL;
struct vb2_queue *q;
@@ -738,7 +724,7 @@ static int s5p_mfc_open(struct file *file)
/* Mark context as idle */
clear_work_bit_irqsave(ctx);
dev->ctx[ctx->num] = ctx;
- if (s5p_mfc_get_node_type(file) == MFCNODE_DECODER) {
+ if (vdev == dev->vfd_dec) {
ctx->type = MFCINST_DECODER;
ctx->c_ops = get_dec_codec_ops();
s5p_mfc_dec_init(ctx);
@@ -748,7 +734,7 @@ static int s5p_mfc_open(struct file *file)
mfc_err("Failed to setup mfc controls\n");
goto err_ctrls_setup;
}
- } else if (s5p_mfc_get_node_type(file) == MFCNODE_ENCODER) {
+ } else if (vdev == dev->vfd_enc) {
ctx->type = MFCINST_ENCODER;
ctx->c_ops = get_enc_codec_ops();
/* only for encoder */
@@ -793,10 +779,10 @@ static int s5p_mfc_open(struct file *file)
q = &ctx->vq_dst;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
q->drv_priv = &ctx->fh;
- if (s5p_mfc_get_node_type(file) == MFCNODE_DECODER) {
+ if (vdev == dev->vfd_dec) {
q->io_modes = VB2_MMAP;
q->ops = get_dec_queue_ops();
- } else if (s5p_mfc_get_node_type(file) == MFCNODE_ENCODER) {
+ } else if (vdev == dev->vfd_enc) {
q->io_modes = VB2_MMAP | VB2_USERPTR;
q->ops = get_enc_queue_ops();
} else {
@@ -815,10 +801,10 @@ static int s5p_mfc_open(struct file *file)
q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
q->io_modes = VB2_MMAP;
q->drv_priv = &ctx->fh;
- if (s5p_mfc_get_node_type(file) == MFCNODE_DECODER) {
+ if (vdev == dev->vfd_dec) {
q->io_modes = VB2_MMAP;
q->ops = get_dec_queue_ops();
- } else if (s5p_mfc_get_node_type(file) == MFCNODE_ENCODER) {
+ } else if (vdev == dev->vfd_enc) {
q->io_modes = VB2_MMAP | VB2_USERPTR;
q->ops = get_enc_queue_ops();
} else {
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
index 6920b546181a..823812c6b9b0 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
@@ -115,15 +115,6 @@ enum s5p_mfc_fmt_type {
};
/**
- * enum s5p_mfc_node_type - The type of an MFC device node.
- */
-enum s5p_mfc_node_type {
- MFCNODE_INVALID = -1,
- MFCNODE_DECODER = 0,
- MFCNODE_ENCODER = 1,
-};
-
-/**
* enum s5p_mfc_inst_type - The type of an MFC instance.
*/
enum s5p_mfc_inst_type {
diff --git a/drivers/media/usb/dvb-usb-v2/anysee.c b/drivers/media/usb/dvb-usb-v2/anysee.c
index 90cfa35ef6e6..eeab79bdd2aa 100644
--- a/drivers/media/usb/dvb-usb-v2/anysee.c
+++ b/drivers/media/usb/dvb-usb-v2/anysee.c
@@ -442,6 +442,7 @@ static struct cxd2820r_config anysee_cxd2820r_config = {
* IOD[0] ZL10353 1=enabled
* IOE[0] tuner 0=enabled
* tuner is behind ZL10353 I2C-gate
+ * tuner is behind TDA10023 I2C-gate
*
* E7 TC VID=1c73 PID=861f HW=18 FW=0.7 AMTCI=0.5 "anysee-E7TC(LP)"
* PCB: 508TC (rev0.6)
@@ -956,7 +957,7 @@ static int anysee_tuner_attach(struct dvb_usb_adapter *adap)
if (fe && adap->fe[1]) {
/* attach tuner for 2nd FE */
- fe = dvb_attach(dvb_pll_attach, adap->fe[0],
+ fe = dvb_attach(dvb_pll_attach, adap->fe[1],
(0xc0 >> 1), &d->i2c_adap,
DVB_PLL_SAMSUNG_DTOS403IH102A);
}
diff --git a/drivers/media/usb/dvb-usb-v2/it913x.c b/drivers/media/usb/dvb-usb-v2/it913x.c
index 1cb6899cf797..fe95a586dd5d 100644
--- a/drivers/media/usb/dvb-usb-v2/it913x.c
+++ b/drivers/media/usb/dvb-usb-v2/it913x.c
@@ -799,6 +799,9 @@ static const struct usb_device_id it913x_id_table[] = {
{ DVB_USB_DEVICE(USB_VID_KWORLD_2, USB_PID_CTVDIGDUAL_V2,
&it913x_properties, "Digital Dual TV Receiver CTVDIGDUAL_V2",
RC_MAP_IT913X_V1) },
+ { DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_H335,
+ &it913x_properties, "Avermedia H335",
+ RC_MAP_IT913X_V2) },
{} /* Terminating entry */
};
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index b5aaaac427ad..0a30dbf3d05c 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -872,8 +872,8 @@ int __video_register_device(struct video_device *vdev, int type, int nr,
/* Should not happen since we thought this minor was free */
WARN_ON(video_device[vdev->minor] != NULL);
- video_device[vdev->minor] = vdev;
vdev->index = get_index(vdev);
+ video_device[vdev->minor] = vdev;
mutex_unlock(&videodev_lock);
if (vdev->ioctl_ops)
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 98f95614b5b1..8d39a1221438 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -593,7 +593,7 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
*/
if (dev->hbm_state == MEI_HBM_IDLE) {
dev_dbg(&dev->pdev->dev, "hbm: state is idle ignore spurious messages\n");
- return 0;
+ return;
}
switch (mei_msg->hbm_cmd) {
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 1a3163f1407e..4e8212c714b1 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1959,6 +1959,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
struct mmc_card *card = md->queue.card;
struct mmc_host *host = card->host;
unsigned long flags;
+ unsigned int cmd_flags = req ? req->cmd_flags : 0;
if (req && !mq->mqrq_prev->req)
/* claim host only for the first request */
@@ -1974,7 +1975,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
}
mq->flags &= ~MMC_QUEUE_NEW_REQUEST;
- if (req && req->cmd_flags & REQ_DISCARD) {
+ if (cmd_flags & REQ_DISCARD) {
/* complete ongoing async transfer before issuing discard */
if (card->host->areq)
mmc_blk_issue_rw_rq(mq, NULL);
@@ -1983,7 +1984,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
ret = mmc_blk_issue_secdiscard_rq(mq, req);
else
ret = mmc_blk_issue_discard_rq(mq, req);
- } else if (req && req->cmd_flags & REQ_FLUSH) {
+ } else if (cmd_flags & REQ_FLUSH) {
/* complete ongoing async transfer before issuing flush */
if (card->host->areq)
mmc_blk_issue_rw_rq(mq, NULL);
@@ -1999,7 +2000,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
out:
if ((!req && !(mq->flags & MMC_QUEUE_NEW_REQUEST)) ||
- (req && (req->cmd_flags & MMC_REQ_SPECIAL_MASK)))
+ (cmd_flags & MMC_REQ_SPECIAL_MASK))
/*
* Release host when there are no more requests
* and after special request(discard, flush) is done.
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 5e8823dc3ef6..06da0608283a 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -11,6 +11,7 @@
*/
#include <linux/err.h>
+#include <linux/sizes.h>
#include <linux/slab.h>
#include <linux/stat.h>
@@ -44,6 +45,13 @@ static const unsigned int tacc_mant[] = {
35, 40, 45, 50, 55, 60, 70, 80,
};
+static const unsigned int sd_au_size[] = {
+ 0, SZ_16K / 512, SZ_32K / 512, SZ_64K / 512,
+ SZ_128K / 512, SZ_256K / 512, SZ_512K / 512, SZ_1M / 512,
+ SZ_2M / 512, SZ_4M / 512, SZ_8M / 512, (SZ_8M + SZ_4M) / 512,
+ SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
+};
+
#define UNSTUFF_BITS(resp,start,size) \
({ \
const int __size = size; \
@@ -215,7 +223,7 @@ static int mmc_decode_scr(struct mmc_card *card)
static int mmc_read_ssr(struct mmc_card *card)
{
unsigned int au, es, et, eo;
- int err, i, max_au;
+ int err, i;
u32 *ssr;
if (!(card->csd.cmdclass & CCC_APP_SPEC)) {
@@ -239,26 +247,25 @@ static int mmc_read_ssr(struct mmc_card *card)
for (i = 0; i < 16; i++)
ssr[i] = be32_to_cpu(ssr[i]);
- /* SD3.0 increases max AU size to 64MB (0xF) from 4MB (0x9) */
- max_au = card->scr.sda_spec3 ? 0xF : 0x9;
-
/*
* UNSTUFF_BITS only works with four u32s so we have to offset the
* bitfield positions accordingly.
*/
au = UNSTUFF_BITS(ssr, 428 - 384, 4);
- if (au > 0 && au <= max_au) {
- card->ssr.au = 1 << (au + 4);
- es = UNSTUFF_BITS(ssr, 408 - 384, 16);
- et = UNSTUFF_BITS(ssr, 402 - 384, 6);
- eo = UNSTUFF_BITS(ssr, 400 - 384, 2);
- if (es && et) {
- card->ssr.erase_timeout = (et * 1000) / es;
- card->ssr.erase_offset = eo * 1000;
+ if (au) {
+ if (au <= 9 || card->scr.sda_spec3) {
+ card->ssr.au = sd_au_size[au];
+ es = UNSTUFF_BITS(ssr, 408 - 384, 16);
+ et = UNSTUFF_BITS(ssr, 402 - 384, 6);
+ if (es && et) {
+ eo = UNSTUFF_BITS(ssr, 400 - 384, 2);
+ card->ssr.erase_timeout = (et * 1000) / es;
+ card->ssr.erase_offset = eo * 1000;
+ }
+ } else {
+ pr_warning("%s: SD Status: Invalid Allocation Unit size.\n",
+ mmc_hostname(card->host));
}
- } else {
- pr_warning("%s: SD Status: Invalid Allocation Unit "
- "size.\n", mmc_hostname(card->host));
}
out:
kfree(ssr);
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 92c18779d47e..a0752e9ce977 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1193,11 +1193,22 @@ static void atmci_start_request(struct atmel_mci *host,
iflags |= ATMCI_CMDRDY;
cmd = mrq->cmd;
cmdflags = atmci_prepare_command(slot->mmc, cmd);
- atmci_send_command(host, cmd, cmdflags);
+
+ /*
+ * DMA transfer should be started before sending the command to avoid
+ * unexpected errors especially for read operations in SDIO mode.
+ * Unfortunately, in PDC mode, command has to be sent before starting
+ * the transfer.
+ */
+ if (host->submit_data != &atmci_submit_data_dma)
+ atmci_send_command(host, cmd, cmdflags);
if (data)
host->submit_data(host, data);
+ if (host->submit_data == &atmci_submit_data_dma)
+ atmci_send_command(host, cmd, cmdflags);
+
if (mrq->stop) {
host->stop_cmdr = atmci_prepare_command(slot->mmc, mrq->stop);
host->stop_cmdr |= ATMCI_CMDR_STOP_XFER;
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index d7d6bc8968d2..27ae563d0caa 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -59,6 +59,7 @@ struct sdhci_pci_fixes {
unsigned int quirks;
unsigned int quirks2;
bool allow_runtime_pm;
+ bool own_cd_for_runtime_pm;
int (*probe) (struct sdhci_pci_chip *);
@@ -290,6 +291,7 @@ static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.allow_runtime_pm = true,
+ .own_cd_for_runtime_pm = true,
};
static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
@@ -354,6 +356,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
.quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,
.allow_runtime_pm = true,
+ .own_cd_for_runtime_pm = true,
};
/* O2Micro extra registers */
@@ -1381,6 +1384,15 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
sdhci_pci_add_own_cd(slot);
+ /*
+ * Check if the chip needs a separate GPIO for card detect to wake up
+ * from runtime suspend. If it is not there, don't allow runtime PM.
+ * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure.
+ */
+ if (chip->fixes && chip->fixes->own_cd_for_runtime_pm &&
+ !gpio_is_valid(slot->cd_gpio))
+ chip->allow_runtime_pm = false;
+
return slot;
remove:
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index ce8242b6c3e7..e5c0e593ed1e 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -676,7 +676,6 @@ static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
ecc_stat >>= 4;
} while (--no_subpages);
- mtd->ecc_stats.corrected += ret;
pr_debug("%d Symbol Correctable RS-ECC Error\n", ret);
return ret;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 3f0f20081979..7c541dc1647e 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -2070,7 +2070,7 @@ static int __init netif_init(void)
if (!xen_domain())
return -ENODEV;
- if (xen_hvm_domain() && !xen_platform_pci_unplug)
+ if (!xen_has_pv_nic_devices())
return -ENODEV;
pr_info("Initialising Xen virtual ethernet driver\n");
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index f7197a790341..eae7cd9fde7b 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -20,6 +20,7 @@
#include <linux/workqueue.h>
#include <linux/bitops.h>
#include <linux/time.h>
+#include <xen/platform_pci.h>
#include <asm/xen/swiotlb-xen.h>
#define INVALID_GRANT_REF (0)
@@ -1138,6 +1139,9 @@ static int __init pcifront_init(void)
if (!xen_pv_domain() || xen_initial_domain())
return -ENODEV;
+ if (!xen_has_pv_devices())
+ return -ENODEV;
+
pci_frontend_registrar(1 /* enable */);
return xenbus_register_frontend(&xenpci_driver);
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 24e733c98f8b..371a7e91dbf6 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -34,11 +34,11 @@
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
-#include <linux/mod_devicetable.h>
#include <linux/log2.h>
#include <linux/pm.h>
#include <linux/of.h>
#include <linux/of_platform.h>
+#include <linux/dmi.h>
/* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */
#include <asm-generic/rtc.h>
@@ -377,6 +377,51 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t)
return 0;
}
+/*
+ * Do not disable RTC alarm on shutdown - workaround for b0rked BIOSes.
+ */
+static bool alarm_disable_quirk;
+
+static int __init set_alarm_disable_quirk(const struct dmi_system_id *id)
+{
+ alarm_disable_quirk = true;
+ pr_info("rtc-cmos: BIOS has alarm-disable quirk. ");
+ pr_info("RTC alarms disabled\n");
+ return 0;
+}
+
+static const struct dmi_system_id rtc_quirks[] __initconst = {
+ /* https://bugzilla.novell.com/show_bug.cgi?id=805740 */
+ {
+ .callback = set_alarm_disable_quirk,
+ .ident = "IBM Truman",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "4852570"),
+ },
+ },
+ /* https://bugzilla.novell.com/show_bug.cgi?id=812592 */
+ {
+ .callback = set_alarm_disable_quirk,
+ .ident = "Gigabyte GA-990XA-UD3",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR,
+ "Gigabyte Technology Co., Ltd."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GA-990XA-UD3"),
+ },
+ },
+ /* http://permalink.gmane.org/gmane.linux.kernel/1604474 */
+ {
+ .callback = set_alarm_disable_quirk,
+ .ident = "Toshiba Satellite L300",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
+ },
+ },
+ {}
+};
+
static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
{
struct cmos_rtc *cmos = dev_get_drvdata(dev);
@@ -385,6 +430,9 @@ static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled)
if (!is_valid_irq(cmos->irq))
return -EINVAL;
+ if (alarm_disable_quirk)
+ return 0;
+
spin_lock_irqsave(&rtc_lock, flags);
if (enabled)
@@ -1158,6 +1206,8 @@ static int __init cmos_init(void)
platform_driver_registered = true;
}
+ dmi_check_system(rtc_quirks);
+
if (retval == 0)
return 0;
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 536b0e363826..fa905c9d772a 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -169,8 +169,6 @@ static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *first,
transfer_list);
}
- len -= prepend_len;
-
init_completion(&bs->done);
/* Fill in the Message control register */
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 28361f7783cd..7b69e93d8448 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1070,6 +1070,8 @@ pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev)
pdata->num_chipselect = 1;
pdata->enable_dma = true;
+ pdata->tx_chan_id = -1;
+ pdata->rx_chan_id = -1;
return pdata;
}
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9e039c60c068..30b1229f6406 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -600,7 +600,9 @@ static void spi_pump_messages(struct kthread_work *work)
ret = master->transfer_one_message(master, master->cur_msg);
if (ret) {
dev_err(&master->dev,
- "failed to transfer one message from queue\n");
+ "failed to transfer one message from queue: %d\n", ret);
+ master->cur_msg->status = ret;
+ spi_finalize_current_message(master);
return;
}
}
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index b0cac0c342e1..1039de499bc6 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -156,9 +156,13 @@ struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *conn, gfp_t gfp_mask)
{
struct iscsi_cmd *cmd;
struct se_session *se_sess = conn->sess->se_sess;
- int size, tag;
+ int size, tag, state = (gfp_mask & __GFP_WAIT) ? TASK_INTERRUPTIBLE :
+ TASK_RUNNING;
+
+ tag = percpu_ida_alloc(&se_sess->sess_tag_pool, state);
+ if (tag < 0)
+ return NULL;
- tag = percpu_ida_alloc(&se_sess->sess_tag_pool, gfp_mask);
size = sizeof(struct iscsi_cmd) + conn->conn_transport->priv_size;
cmd = (struct iscsi_cmd *)(se_sess->sess_cmd_map + (tag * size));
memset(cmd, 0, size);
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index e663921eebb6..d300fd99a2b8 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -728,7 +728,7 @@ vhost_scsi_get_tag(struct vhost_virtqueue *vq,
}
se_sess = tv_nexus->tvn_se_sess;
- tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_ATOMIC);
+ tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING);
if (tag < 0) {
pr_err("Unable to obtain tag for tcm_vhost_cmd\n");
return ERR_PTR(-ENOMEM);
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index cd005c227a23..4b2d3ab870f3 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -35,6 +35,7 @@
#include <xen/interface/io/fbif.h>
#include <xen/interface/io/protocols.h>
#include <xen/xenbus.h>
+#include <xen/platform_pci.h>
struct xenfb_info {
unsigned char *fb;
@@ -699,6 +700,9 @@ static int __init xenfb_init(void)
if (xen_initial_domain())
return -ENODEV;
+ if (!xen_has_pv_devices())
+ return -ENODEV;
+
return xenbus_register_frontend(&xenfb_driver);
}
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index 34b20bfa4e8c..6244f9c8cfb8 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -496,7 +496,7 @@ subsys_initcall(xenbus_probe_frontend_init);
#ifndef MODULE
static int __init boot_wait_for_devices(void)
{
- if (xen_hvm_domain() && !xen_platform_pci_unplug)
+ if (!xen_has_pv_devices())
return -ENODEV;
ready_to_wait_for_devices = 1;
diff --git a/fs/dcookies.c b/fs/dcookies.c
index ab5954b50267..ac44a69fbea9 100644
--- a/fs/dcookies.c
+++ b/fs/dcookies.c
@@ -204,7 +204,7 @@ out:
}
#ifdef CONFIG_COMPAT
-COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, w0, u32, w1, char __user *, buf, size_t, len)
+COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, w0, u32, w1, char __user *, buf, compat_size_t, len)
{
#ifdef __BIG_ENDIAN
return sys_lookup_dcookie(((u64)w0 << 32) | w1, buf, len);
diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c
index b74422888604..85cde3e76290 100644
--- a/fs/exofs/ore.c
+++ b/fs/exofs/ore.c
@@ -103,7 +103,7 @@ int ore_verify_layout(unsigned total_comps, struct ore_layout *layout)
layout->max_io_length =
(BIO_MAX_PAGES_KMALLOC * PAGE_SIZE - layout->stripe_unit) *
- layout->group_width;
+ (layout->group_width - layout->parity);
if (layout->parity) {
unsigned stripe_length =
(layout->group_width - layout->parity) *
@@ -286,7 +286,8 @@ int ore_get_rw_state(struct ore_layout *layout, struct ore_components *oc,
if (length) {
ore_calc_stripe_info(layout, offset, length, &ios->si);
ios->length = ios->si.length;
- ios->nr_pages = (ios->length + PAGE_SIZE - 1) / PAGE_SIZE;
+ ios->nr_pages = ((ios->offset & (PAGE_SIZE - 1)) +
+ ios->length + PAGE_SIZE - 1) / PAGE_SIZE;
if (layout->parity)
_ore_post_alloc_raid_stuff(ios);
}
@@ -536,6 +537,7 @@ void ore_calc_stripe_info(struct ore_layout *layout, u64 file_offset,
u64 H = LmodS - G * T;
u32 N = div_u64(H, U);
+ u32 Nlast;
/* "H - (N * U)" is just "H % U" so it's bound to u32 */
u32 C = (u32)(H - (N * U)) / stripe_unit + G * group_width;
@@ -568,6 +570,10 @@ void ore_calc_stripe_info(struct ore_layout *layout, u64 file_offset,
si->length = T - H;
if (si->length > length)
si->length = length;
+
+ Nlast = div_u64(H + si->length + U - 1, U);
+ si->maxdevUnits = Nlast - N;
+
si->M = M;
}
EXPORT_SYMBOL(ore_calc_stripe_info);
@@ -583,13 +589,16 @@ int _ore_add_stripe_unit(struct ore_io_state *ios, unsigned *cur_pg,
int ret;
if (per_dev->bio == NULL) {
- unsigned pages_in_stripe = ios->layout->group_width *
- (ios->layout->stripe_unit / PAGE_SIZE);
- unsigned nr_pages = ios->nr_pages * ios->layout->group_width /
- (ios->layout->group_width -
- ios->layout->parity);
- unsigned bio_size = (nr_pages + pages_in_stripe) /
- ios->layout->group_width;
+ unsigned bio_size;
+
+ if (!ios->reading) {
+ bio_size = ios->si.maxdevUnits;
+ } else {
+ bio_size = (ios->si.maxdevUnits + 1) *
+ (ios->layout->group_width - ios->layout->parity) /
+ ios->layout->group_width;
+ }
+ bio_size *= (ios->layout->stripe_unit / PAGE_SIZE);
per_dev->bio = bio_kmalloc(GFP_KERNEL, bio_size);
if (unlikely(!per_dev->bio)) {
@@ -609,8 +618,12 @@ int _ore_add_stripe_unit(struct ore_io_state *ios, unsigned *cur_pg,
added_len = bio_add_pc_page(q, per_dev->bio, pages[pg],
pglen, pgbase);
if (unlikely(pglen != added_len)) {
- ORE_DBGMSG("Failed bio_add_pc_page bi_vcnt=%u\n",
- per_dev->bio->bi_vcnt);
+ /* If bi_vcnt == bi_max then this is a SW BUG */
+ ORE_DBGMSG("Failed bio_add_pc_page bi_vcnt=0x%x "
+ "bi_max=0x%x BIO_MAX=0x%x cur_len=0x%x\n",
+ per_dev->bio->bi_vcnt,
+ per_dev->bio->bi_max_vecs,
+ BIO_MAX_PAGES_KMALLOC, cur_len);
ret = -ENOMEM;
goto out;
}
@@ -1098,7 +1111,7 @@ int ore_truncate(struct ore_layout *layout, struct ore_components *oc,
size_attr->attr = g_attr_logical_length;
size_attr->attr.val_ptr = &size_attr->newsize;
- ORE_DBGMSG("trunc(0x%llx) obj_offset=0x%llx dev=%d\n",
+ ORE_DBGMSG2("trunc(0x%llx) obj_offset=0x%llx dev=%d\n",
_LLU(oc->comps->obj.id), _LLU(obj_size), i);
ret = _truncate_mirrors(ios, i * ios->layout->mirrors_p1,
&size_attr->attr);
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index ef74ad5fd362..fa8cb4b7b8fe 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1296,22 +1296,6 @@ static ssize_t fuse_dev_read(struct kiocb *iocb, const struct iovec *iov,
return fuse_dev_do_read(fc, file, &cs, iov_length(iov, nr_segs));
}
-static int fuse_dev_pipe_buf_steal(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- return 1;
-}
-
-static const struct pipe_buf_operations fuse_dev_pipe_buf_ops = {
- .can_merge = 0,
- .map = generic_pipe_buf_map,
- .unmap = generic_pipe_buf_unmap,
- .confirm = generic_pipe_buf_confirm,
- .release = generic_pipe_buf_release,
- .steal = fuse_dev_pipe_buf_steal,
- .get = generic_pipe_buf_get,
-};
-
static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
struct pipe_inode_info *pipe,
size_t len, unsigned int flags)
@@ -1358,7 +1342,11 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
buf->page = bufs[page_nr].page;
buf->offset = bufs[page_nr].offset;
buf->len = bufs[page_nr].len;
- buf->ops = &fuse_dev_pipe_buf_ops;
+ /*
+ * Need to be careful about this. Having buf->ops in module
+ * code can Oops if the buffer persists after module unload.
+ */
+ buf->ops = &nosteal_pipe_buf_ops;
pipe->nrbufs++;
page_nr++;
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index a860ab566d6e..8a572ddde55b 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -407,13 +407,11 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp,
error = nfs4_discover_server_trunking(clp, &old);
if (error < 0)
goto error;
- nfs_put_client(clp);
- if (clp != old) {
- clp->cl_preserve_clid = true;
- clp = old;
- }
- return clp;
+ if (clp != old)
+ clp->cl_preserve_clid = true;
+ nfs_put_client(clp);
+ return old;
error:
nfs_mark_client_ready(clp, error);
@@ -491,9 +489,10 @@ int nfs40_walk_client_list(struct nfs_client *new,
prev = pos;
status = nfs_wait_client_init_complete(pos);
- spin_lock(&nn->nfs_client_lock);
if (status < 0)
- continue;
+ goto out;
+ status = -NFS4ERR_STALE_CLIENTID;
+ spin_lock(&nn->nfs_client_lock);
}
if (pos->cl_cons_state != NFS_CS_READY)
continue;
@@ -631,7 +630,8 @@ int nfs41_walk_client_list(struct nfs_client *new,
}
spin_lock(&nn->nfs_client_lock);
if (status < 0)
- continue;
+ break;
+ status = -NFS4ERR_STALE_CLIENTID;
}
if (pos->cl_cons_state != NFS_CS_READY)
continue;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index dacb2979e8ac..29c5a2c08f02 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -532,7 +532,7 @@ static int nfs40_sequence_done(struct rpc_task *task,
struct nfs4_slot *slot = res->sr_slot;
struct nfs4_slot_table *tbl;
- if (!RPC_WAS_SENT(task))
+ if (slot == NULL)
goto out;
tbl = slot->table;
@@ -7057,9 +7057,9 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
struct nfs_server *server = NFS_SERVER(inode);
struct pnfs_layout_hdr *lo;
struct nfs4_state *state = NULL;
- unsigned long timeo, giveup;
+ unsigned long timeo, now, giveup;
- dprintk("--> %s\n", __func__);
+ dprintk("--> %s tk_status => %d\n", __func__, -task->tk_status);
if (!nfs41_sequence_done(task, &lgp->res.seq_res))
goto out;
@@ -7067,12 +7067,38 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata)
switch (task->tk_status) {
case 0:
goto out;
+ /*
+ * NFS4ERR_LAYOUTTRYLATER is a conflict with another client
+ * (or clients) writing to the same RAID stripe
+ */
case -NFS4ERR_LAYOUTTRYLATER:
+ /*
+ * NFS4ERR_RECALLCONFLICT is when conflict with self (must recall
+ * existing layout before getting a new one).
+ */
case -NFS4ERR_RECALLCONFLICT:
timeo = rpc_get_timeout(task->tk_client);
giveup = lgp->args.timestamp + timeo;
- if (time_after(giveup, jiffies))
- task->tk_status = -NFS4ERR_DELAY;
+ now = jiffies;
+ if (time_after(giveup, now)) {
+ unsigned long delay;
+
+ /* Delay for:
+ * - Not less then NFS4_POLL_RETRY_MIN.
+ * - One last time a jiffie before we give up
+ * - exponential backoff (time_now minus start_attempt)
+ */
+ delay = max_t(unsigned long, NFS4_POLL_RETRY_MIN,
+ min((giveup - now - 1),
+ now - lgp->args.timestamp));
+
+ dprintk("%s: NFS4ERR_RECALLCONFLICT waiting %lu\n",
+ __func__, delay);
+ rpc_delay(task, delay);
+ task->tk_status = 0;
+ rpc_restart_call_prepare(task);
+ goto out; /* Do not call nfs4_async_handle_error() */
+ }
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_BAD_STATEID:
@@ -7561,7 +7587,7 @@ nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
switch (err) {
case 0:
case -NFS4ERR_WRONGSEC:
- case -NFS4ERR_NOTSUPP:
+ case -ENOTSUPP:
goto out;
default:
err = nfs4_handle_exception(server, err, &exception);
@@ -7595,7 +7621,7 @@ nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
* Fall back on "guess and check" method if
* the server doesn't support SECINFO_NO_NAME
*/
- if (err == -NFS4ERR_WRONGSEC || err == -NFS4ERR_NOTSUPP) {
+ if (err == -NFS4ERR_WRONGSEC || err == -ENOTSUPP) {
err = nfs4_find_root_sec(server, fhandle, info);
goto out_freepage;
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 79210d23f607..b2f842d0901b 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3053,7 +3053,8 @@ out_overflow:
return -EIO;
}
-static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
+static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected,
+ int *nfs_retval)
{
__be32 *p;
uint32_t opnum;
@@ -3063,19 +3064,32 @@ static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
if (unlikely(!p))
goto out_overflow;
opnum = be32_to_cpup(p++);
- if (opnum != expected) {
- dprintk("nfs: Server returned operation"
- " %d but we issued a request for %d\n",
- opnum, expected);
- return -EIO;
- }
+ if (unlikely(opnum != expected))
+ goto out_bad_operation;
nfserr = be32_to_cpup(p);
- if (nfserr != NFS_OK)
- return nfs4_stat_to_errno(nfserr);
- return 0;
+ if (nfserr == NFS_OK)
+ *nfs_retval = 0;
+ else
+ *nfs_retval = nfs4_stat_to_errno(nfserr);
+ return true;
+out_bad_operation:
+ dprintk("nfs: Server returned operation"
+ " %d but we issued a request for %d\n",
+ opnum, expected);
+ *nfs_retval = -EREMOTEIO;
+ return false;
out_overflow:
print_overflow_msg(__func__, xdr);
- return -EIO;
+ *nfs_retval = -EIO;
+ return false;
+}
+
+static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
+{
+ int retval;
+
+ __decode_op_hdr(xdr, expected, &retval);
+ return retval;
}
/* Dummy routine */
@@ -4957,11 +4971,12 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
uint32_t savewords, bmlen, i;
int status;
- status = decode_op_hdr(xdr, OP_OPEN);
- if (status != -EIO)
- nfs_increment_open_seqid(status, res->seqid);
- if (!status)
- status = decode_stateid(xdr, &res->stateid);
+ if (!__decode_op_hdr(xdr, OP_OPEN, &status))
+ return status;
+ nfs_increment_open_seqid(status, res->seqid);
+ if (status)
+ return status;
+ status = decode_stateid(xdr, &res->stateid);
if (unlikely(status))
return status;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index ac1dc331ba31..28466be64eeb 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -922,19 +922,20 @@ out:
* extend the write to cover the entire page in order to avoid fragmentation
* inefficiencies.
*
- * If the file is opened for synchronous writes or if we have a write delegation
- * from the server then we can just skip the rest of the checks.
+ * If the file is opened for synchronous writes then we can just skip the rest
+ * of the checks.
*/
static int nfs_can_extend_write(struct file *file, struct page *page, struct inode *inode)
{
if (file->f_flags & O_DSYNC)
return 0;
+ if (!nfs_write_pageuptodate(page, inode))
+ return 0;
if (NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE))
return 1;
- if (nfs_write_pageuptodate(page, inode) && (inode->i_flock == NULL ||
- (inode->i_flock->fl_start == 0 &&
+ if (inode->i_flock == NULL || (inode->i_flock->fl_start == 0 &&
inode->i_flock->fl_end == OFFSET_MAX &&
- inode->i_flock->fl_type != F_RDLCK)))
+ inode->i_flock->fl_type != F_RDLCK))
return 1;
return 0;
}
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index e44cb6427df3..6663511ab33a 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -888,9 +888,9 @@ COMPAT_SYSCALL_DEFINE6(fanotify_mark,
{
return sys_fanotify_mark(fanotify_fd, flags,
#ifdef __BIG_ENDIAN
- ((__u64)mask1 << 32) | mask0,
-#else
((__u64)mask0 << 32) | mask1,
+#else
+ ((__u64)mask1 << 32) | mask0,
#endif
dfd, pathname);
}
diff --git a/fs/read_write.c b/fs/read_write.c
index e3cd280b158c..3889dcc25114 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -977,9 +977,9 @@ out:
return ret;
}
-COMPAT_SYSCALL_DEFINE3(readv, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE3(readv, compat_ulong_t, fd,
const struct compat_iovec __user *,vec,
- unsigned long, vlen)
+ compat_ulong_t, vlen)
{
struct fd f = fdget(fd);
ssize_t ret;
@@ -1014,9 +1014,9 @@ COMPAT_SYSCALL_DEFINE4(preadv64, unsigned long, fd,
return ret;
}
-COMPAT_SYSCALL_DEFINE5(preadv, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE5(preadv, compat_ulong_t, fd,
const struct compat_iovec __user *,vec,
- unsigned long, vlen, u32, pos_low, u32, pos_high)
+ compat_ulong_t, vlen, u32, pos_low, u32, pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
return compat_sys_preadv64(fd, vec, vlen, pos);
@@ -1044,9 +1044,9 @@ out:
return ret;
}
-COMPAT_SYSCALL_DEFINE3(writev, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE3(writev, compat_ulong_t, fd,
const struct compat_iovec __user *, vec,
- unsigned long, vlen)
+ compat_ulong_t, vlen)
{
struct fd f = fdget(fd);
ssize_t ret;
@@ -1081,9 +1081,9 @@ COMPAT_SYSCALL_DEFINE4(pwritev64, unsigned long, fd,
return ret;
}
-COMPAT_SYSCALL_DEFINE5(pwritev, unsigned long, fd,
+COMPAT_SYSCALL_DEFINE5(pwritev, compat_ulong_t, fd,
const struct compat_iovec __user *,vec,
- unsigned long, vlen, u32, pos_low, u32, pos_high)
+ compat_ulong_t, vlen, u32, pos_low, u32, pos_high)
{
loff_t pos = ((loff_t)pos_high << 32) | pos_low;
return compat_sys_pwritev64(fd, vec, vlen, pos);
diff --git a/fs/splice.c b/fs/splice.c
index 3b7ee656f3aa..84f810d63c37 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -555,6 +555,24 @@ static const struct pipe_buf_operations default_pipe_buf_ops = {
.get = generic_pipe_buf_get,
};
+static int generic_pipe_buf_nosteal(struct pipe_inode_info *pipe,
+ struct pipe_buffer *buf)
+{
+ return 1;
+}
+
+/* Pipe buffer operations for a socket and similar. */
+const struct pipe_buf_operations nosteal_pipe_buf_ops = {
+ .can_merge = 0,
+ .map = generic_pipe_buf_map,
+ .unmap = generic_pipe_buf_unmap,
+ .confirm = generic_pipe_buf_confirm,
+ .release = generic_pipe_buf_release,
+ .steal = generic_pipe_buf_nosteal,
+ .get = generic_pipe_buf_get,
+};
+EXPORT_SYMBOL(nosteal_pipe_buf_ops);
+
static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
unsigned long vlen, loff_t offset)
{
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 729a4d165bcc..4fb28b23a4a4 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -135,7 +135,7 @@ static inline void audit_syscall_exit(void *pt_regs)
{
if (unlikely(current->audit_context)) {
int success = is_syscall_success(pt_regs);
- int return_code = regs_return_value(pt_regs);
+ long return_code = regs_return_value(pt_regs);
__audit_syscall_exit(success, return_code);
}
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 345da00a86e0..0f62cb7a4ff0 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -327,16 +327,16 @@ asmlinkage long compat_sys_keyctl(u32 option,
u32 arg2, u32 arg3, u32 arg4, u32 arg5);
asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
-asmlinkage ssize_t compat_sys_readv(unsigned long fd,
- const struct compat_iovec __user *vec, unsigned long vlen);
-asmlinkage ssize_t compat_sys_writev(unsigned long fd,
- const struct compat_iovec __user *vec, unsigned long vlen);
-asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
+asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd,
+ const struct compat_iovec __user *vec, compat_ulong_t vlen);
+asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd,
+ const struct compat_iovec __user *vec, compat_ulong_t vlen);
+asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd,
const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_low, u32 pos_high);
-asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
+ compat_ulong_t vlen, u32 pos_low, u32 pos_high);
+asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd,
const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_low, u32 pos_high);
+ compat_ulong_t vlen, u32 pos_low, u32 pos_high);
asmlinkage long comat_sys_lseek(unsigned int, compat_off_t, unsigned int);
asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
@@ -422,7 +422,7 @@ extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
compat_long_t addr, compat_long_t data);
-asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, size_t);
+asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
/*
* epoll (fs/eventpoll.c) compat bits follow ...
*/
diff --git a/include/linux/percpu_ida.h b/include/linux/percpu_ida.h
index 0b23edbee309..67de9b761374 100644
--- a/include/linux/percpu_ida.h
+++ b/include/linux/percpu_ida.h
@@ -4,6 +4,7 @@
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/init.h>
+#include <linux/sched.h>
#include <linux/spinlock_types.h>
#include <linux/wait.h>
#include <linux/cpumask.h>
@@ -51,7 +52,7 @@ struct percpu_ida {
} ____cacheline_aligned_in_smp;
};
-int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp);
+int percpu_ida_alloc(struct percpu_ida *pool, int state);
void percpu_ida_free(struct percpu_ida *pool, unsigned tag);
void percpu_ida_destroy(struct percpu_ida *pool);
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index b8809fef61f5..ab5752692113 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -157,6 +157,8 @@ int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *);
int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *);
void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *);
+extern const struct pipe_buf_operations nosteal_pipe_buf_ops;
+
/* for F_SETPIPE_SZ and F_GETPIPE_SZ */
long pipe_fcntl(struct file *, unsigned int, unsigned long arg);
struct pipe_inode_info *get_pipe_info(struct file *file);
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index e4b948080d20..a67b38415768 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -142,8 +142,6 @@ static inline unsigned long zone_page_state_snapshot(struct zone *zone,
return x;
}
-extern unsigned long global_reclaimable_pages(void);
-
#ifdef CONFIG_NUMA
/*
* Determine the per node value of a stat item. This function
diff --git a/include/scsi/osd_ore.h b/include/scsi/osd_ore.h
index a5f9b960dfc8..6ca3265a4dca 100644
--- a/include/scsi/osd_ore.h
+++ b/include/scsi/osd_ore.h
@@ -102,6 +102,7 @@ struct ore_striping_info {
unsigned unit_off;
unsigned cur_pg;
unsigned cur_comp;
+ unsigned maxdevUnits;
};
struct ore_io_state;
diff --git a/include/xen/platform_pci.h b/include/xen/platform_pci.h
index 438c256c274b..b49eeab0262e 100644
--- a/include/xen/platform_pci.h
+++ b/include/xen/platform_pci.h
@@ -48,4 +48,27 @@ static inline int xen_must_unplug_disks(void) {
extern int xen_platform_pci_unplug;
+#if defined(CONFIG_XEN_PVHVM)
+extern bool xen_has_pv_devices(void);
+extern bool xen_has_pv_disk_devices(void);
+extern bool xen_has_pv_nic_devices(void);
+extern bool xen_has_pv_and_legacy_disk_devices(void);
+#else
+static inline bool xen_has_pv_devices(void)
+{
+ return IS_ENABLED(CONFIG_XEN);
+}
+static inline bool xen_has_pv_disk_devices(void)
+{
+ return IS_ENABLED(CONFIG_XEN);
+}
+static inline bool xen_has_pv_nic_devices(void)
+{
+ return IS_ENABLED(CONFIG_XEN);
+}
+static inline bool xen_has_pv_and_legacy_disk_devices(void)
+{
+ return false;
+}
+#endif
#endif /* _XEN_PLATFORM_PCI_H */
diff --git a/kernel/audit.c b/kernel/audit.c
index 7ddfd8a00a2a..6def25f1b351 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -103,7 +103,8 @@ static int audit_rate_limit;
/* Number of outstanding audit_buffers allowed. */
static int audit_backlog_limit = 64;
-static int audit_backlog_wait_time = 60 * HZ;
+#define AUDIT_BACKLOG_WAIT_TIME (60 * HZ)
+static int audit_backlog_wait_time = AUDIT_BACKLOG_WAIT_TIME;
static int audit_backlog_wait_overflow = 0;
/* The identity of the user shutting down the audit system. */
@@ -1135,6 +1136,8 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask,
return NULL;
}
+ audit_backlog_wait_time = AUDIT_BACKLOG_WAIT_TIME;
+
ab = audit_buffer_alloc(ctx, gfp_mask, type);
if (!ab) {
audit_log_lost("out of memory in audit_log_start");
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 5cf6c7097a71..bfca770a64e0 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -77,7 +77,7 @@ static void tk_set_wall_to_mono(struct timekeeper *tk, struct timespec wtm)
tk->wall_to_monotonic = wtm;
set_normalized_timespec(&tmp, -wtm.tv_sec, -wtm.tv_nsec);
tk->offs_real = timespec_to_ktime(tmp);
- tk->offs_tai = ktime_sub(tk->offs_real, ktime_set(tk->tai_offset, 0));
+ tk->offs_tai = ktime_add(tk->offs_real, ktime_set(tk->tai_offset, 0));
}
static void tk_set_sleep_time(struct timekeeper *tk, struct timespec t)
@@ -595,7 +595,7 @@ s32 timekeeping_get_tai_offset(void)
static void __timekeeping_set_tai_offset(struct timekeeper *tk, s32 tai_offset)
{
tk->tai_offset = tai_offset;
- tk->offs_tai = ktime_sub(tk->offs_real, ktime_set(tai_offset, 0));
+ tk->offs_tai = ktime_add(tk->offs_real, ktime_set(tai_offset, 0));
}
/**
@@ -610,6 +610,7 @@ void timekeeping_set_tai_offset(s32 tai_offset)
raw_spin_lock_irqsave(&timekeeper_lock, flags);
write_seqcount_begin(&timekeeper_seq);
__timekeeping_set_tai_offset(tk, tai_offset);
+ timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET);
write_seqcount_end(&timekeeper_seq);
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
clock_was_set();
@@ -1023,6 +1024,8 @@ static int timekeeping_suspend(void)
timekeeping_suspend_time =
timespec_add(timekeeping_suspend_time, delta_delta);
}
+
+ timekeeping_update(tk, TK_MIRROR);
write_seqcount_end(&timekeeper_seq);
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
@@ -1255,7 +1258,7 @@ out_adjust:
static inline unsigned int accumulate_nsecs_to_secs(struct timekeeper *tk)
{
u64 nsecps = (u64)NSEC_PER_SEC << tk->shift;
- unsigned int action = 0;
+ unsigned int clock_set = 0;
while (tk->xtime_nsec >= nsecps) {
int leap;
@@ -1277,11 +1280,10 @@ static inline unsigned int accumulate_nsecs_to_secs(struct timekeeper *tk)
__timekeeping_set_tai_offset(tk, tk->tai_offset - leap);
- clock_was_set_delayed();
- action = TK_CLOCK_WAS_SET;
+ clock_set = TK_CLOCK_WAS_SET;
}
}
- return action;
+ return clock_set;
}
/**
@@ -1294,7 +1296,8 @@ static inline unsigned int accumulate_nsecs_to_secs(struct timekeeper *tk)
* Returns the unconsumed cycles.
*/
static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset,
- u32 shift)
+ u32 shift,
+ unsigned int *clock_set)
{
cycle_t interval = tk->cycle_interval << shift;
u64 raw_nsecs;
@@ -1308,7 +1311,7 @@ static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset,
tk->cycle_last += interval;
tk->xtime_nsec += tk->xtime_interval << shift;
- accumulate_nsecs_to_secs(tk);
+ *clock_set |= accumulate_nsecs_to_secs(tk);
/* Accumulate raw time */
raw_nsecs = (u64)tk->raw_interval << shift;
@@ -1366,7 +1369,7 @@ static void update_wall_time(void)
struct timekeeper *tk = &shadow_timekeeper;
cycle_t offset;
int shift = 0, maxshift;
- unsigned int action;
+ unsigned int clock_set = 0;
unsigned long flags;
raw_spin_lock_irqsave(&timekeeper_lock, flags);
@@ -1401,7 +1404,8 @@ static void update_wall_time(void)
maxshift = (64 - (ilog2(ntp_tick_length())+1)) - 1;
shift = min(shift, maxshift);
while (offset >= tk->cycle_interval) {
- offset = logarithmic_accumulation(tk, offset, shift);
+ offset = logarithmic_accumulation(tk, offset, shift,
+ &clock_set);
if (offset < tk->cycle_interval<<shift)
shift--;
}
@@ -1419,7 +1423,7 @@ static void update_wall_time(void)
* Finally, make sure that after the rounding
* xtime_nsec isn't larger than NSEC_PER_SEC
*/
- action = accumulate_nsecs_to_secs(tk);
+ clock_set |= accumulate_nsecs_to_secs(tk);
write_seqcount_begin(&timekeeper_seq);
/* Update clock->cycle_last with the new value */
@@ -1435,10 +1439,23 @@ static void update_wall_time(void)
* updating.
*/
memcpy(real_tk, tk, sizeof(*tk));
- timekeeping_update(real_tk, action);
+ timekeeping_update(real_tk, clock_set);
write_seqcount_end(&timekeeper_seq);
out:
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
+ if (clock_set) {
+ /*
+ * XXX - I'd rather we just call clock_was_set(), but
+ * since we're currently holding the jiffies lock, calling
+ * clock_was_set would trigger an ipi which would then grab
+ * the jiffies lock and we'd deadlock. :(
+ * The right solution should probably be droping
+ * the jiffies lock before calling update_wall_time
+ * but that requires some rework of the tick sched
+ * code.
+ */
+ clock_was_set_delayed();
+ }
}
/**
@@ -1697,12 +1714,14 @@ int do_adjtimex(struct timex *txc)
if (tai != orig_tai) {
__timekeeping_set_tai_offset(tk, tai);
- update_pvclock_gtod(tk, true);
- clock_was_set_delayed();
+ timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET);
}
write_seqcount_end(&timekeeper_seq);
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
+ if (tai != orig_tai)
+ clock_was_set();
+
ntp_notify_cmos_timer();
return ret;
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 1345d9ff0662..e66411fb55b3 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -85,6 +85,8 @@ int function_trace_stop __read_mostly;
/* Current function tracing op */
struct ftrace_ops *function_trace_op __read_mostly = &ftrace_list_end;
+/* What to set function_trace_op to */
+static struct ftrace_ops *set_function_trace_op;
/* List for set_ftrace_pid's pids. */
LIST_HEAD(ftrace_pids);
@@ -278,6 +280,29 @@ static void update_global_ops(void)
global_ops.func = func;
}
+static void ftrace_sync(struct work_struct *work)
+{
+ /*
+ * This function is just a stub to implement a hard force
+ * of synchronize_sched(). This requires synchronizing
+ * tasks even in userspace and idle.
+ *
+ * Yes, function tracing is rude.
+ */
+}
+
+static void ftrace_sync_ipi(void *data)
+{
+ /* Probably not needed, but do it anyway */
+ smp_rmb();
+}
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+static void update_function_graph_func(void);
+#else
+static inline void update_function_graph_func(void) { }
+#endif
+
static void update_ftrace_function(void)
{
ftrace_func_t func;
@@ -296,16 +321,61 @@ static void update_ftrace_function(void)
!FTRACE_FORCE_LIST_FUNC)) {
/* Set the ftrace_ops that the arch callback uses */
if (ftrace_ops_list == &global_ops)
- function_trace_op = ftrace_global_list;
+ set_function_trace_op = ftrace_global_list;
else
- function_trace_op = ftrace_ops_list;
+ set_function_trace_op = ftrace_ops_list;
func = ftrace_ops_list->func;
} else {
/* Just use the default ftrace_ops */
- function_trace_op = &ftrace_list_end;
+ set_function_trace_op = &ftrace_list_end;
func = ftrace_ops_list_func;
}
+ /* If there's no change, then do nothing more here */
+ if (ftrace_trace_function == func)
+ return;
+
+ update_function_graph_func();
+
+ /*
+ * If we are using the list function, it doesn't care
+ * about the function_trace_ops.
+ */
+ if (func == ftrace_ops_list_func) {
+ ftrace_trace_function = func;
+ /*
+ * Don't even bother setting function_trace_ops,
+ * it would be racy to do so anyway.
+ */
+ return;
+ }
+
+#ifndef CONFIG_DYNAMIC_FTRACE
+ /*
+ * For static tracing, we need to be a bit more careful.
+ * The function change takes affect immediately. Thus,
+ * we need to coorditate the setting of the function_trace_ops
+ * with the setting of the ftrace_trace_function.
+ *
+ * Set the function to the list ops, which will call the
+ * function we want, albeit indirectly, but it handles the
+ * ftrace_ops and doesn't depend on function_trace_op.
+ */
+ ftrace_trace_function = ftrace_ops_list_func;
+ /*
+ * Make sure all CPUs see this. Yes this is slow, but static
+ * tracing is slow and nasty to have enabled.
+ */
+ schedule_on_each_cpu(ftrace_sync);
+ /* Now all cpus are using the list ops. */
+ function_trace_op = set_function_trace_op;
+ /* Make sure the function_trace_op is visible on all CPUs */
+ smp_wmb();
+ /* Nasty way to force a rmb on all cpus */
+ smp_call_function(ftrace_sync_ipi, NULL, 1);
+ /* OK, we are all set to update the ftrace_trace_function now! */
+#endif /* !CONFIG_DYNAMIC_FTRACE */
+
ftrace_trace_function = func;
}
@@ -410,17 +480,6 @@ static int __register_ftrace_function(struct ftrace_ops *ops)
return 0;
}
-static void ftrace_sync(struct work_struct *work)
-{
- /*
- * This function is just a stub to implement a hard force
- * of synchronize_sched(). This requires synchronizing
- * tasks even in userspace and idle.
- *
- * Yes, function tracing is rude.
- */
-}
-
static int __unregister_ftrace_function(struct ftrace_ops *ops)
{
int ret;
@@ -439,20 +498,6 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops)
} else if (ops->flags & FTRACE_OPS_FL_CONTROL) {
ret = remove_ftrace_list_ops(&ftrace_control_list,
&control_ops, ops);
- if (!ret) {
- /*
- * The ftrace_ops is now removed from the list,
- * so there'll be no new users. We must ensure
- * all current users are done before we free
- * the control data.
- * Note synchronize_sched() is not enough, as we
- * use preempt_disable() to do RCU, but the function
- * tracer can be called where RCU is not active
- * (before user_exit()).
- */
- schedule_on_each_cpu(ftrace_sync);
- control_ops_free(ops);
- }
} else
ret = remove_ftrace_ops(&ftrace_ops_list, ops);
@@ -462,17 +507,6 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops)
if (ftrace_enabled)
update_ftrace_function();
- /*
- * Dynamic ops may be freed, we must make sure that all
- * callers are done before leaving this function.
- *
- * Again, normal synchronize_sched() is not good enough.
- * We need to do a hard force of sched synchronization.
- */
- if (ops->flags & FTRACE_OPS_FL_DYNAMIC)
- schedule_on_each_cpu(ftrace_sync);
-
-
return 0;
}
@@ -1992,8 +2026,14 @@ void ftrace_modify_all_code(int command)
else if (command & FTRACE_DISABLE_CALLS)
ftrace_replace_code(0);
- if (update && ftrace_trace_function != ftrace_ops_list_func)
+ if (update && ftrace_trace_function != ftrace_ops_list_func) {
+ function_trace_op = set_function_trace_op;
+ smp_wmb();
+ /* If irqs are disabled, we are in stop machine */
+ if (!irqs_disabled())
+ smp_call_function(ftrace_sync_ipi, NULL, 1);
ftrace_update_ftrace_func(ftrace_trace_function);
+ }
if (command & FTRACE_START_FUNC_RET)
ftrace_enable_ftrace_graph_caller();
@@ -2156,10 +2196,41 @@ static int ftrace_shutdown(struct ftrace_ops *ops, int command)
command |= FTRACE_UPDATE_TRACE_FUNC;
}
- if (!command || !ftrace_enabled)
+ if (!command || !ftrace_enabled) {
+ /*
+ * If these are control ops, they still need their
+ * per_cpu field freed. Since, function tracing is
+ * not currently active, we can just free them
+ * without synchronizing all CPUs.
+ */
+ if (ops->flags & FTRACE_OPS_FL_CONTROL)
+ control_ops_free(ops);
return 0;
+ }
ftrace_run_update_code(command);
+
+ /*
+ * Dynamic ops may be freed, we must make sure that all
+ * callers are done before leaving this function.
+ * The same goes for freeing the per_cpu data of the control
+ * ops.
+ *
+ * Again, normal synchronize_sched() is not good enough.
+ * We need to do a hard force of sched synchronization.
+ * This is because we use preempt_disable() to do RCU, but
+ * the function tracers can be called where RCU is not watching
+ * (like before user_exit()). We can not rely on the RCU
+ * infrastructure to do the synchronization, thus we must do it
+ * ourselves.
+ */
+ if (ops->flags & (FTRACE_OPS_FL_DYNAMIC | FTRACE_OPS_FL_CONTROL)) {
+ schedule_on_each_cpu(ftrace_sync);
+
+ if (ops->flags & FTRACE_OPS_FL_CONTROL)
+ control_ops_free(ops);
+ }
+
return 0;
}
@@ -4777,6 +4848,7 @@ int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
trace_func_graph_ret_t ftrace_graph_return =
(trace_func_graph_ret_t)ftrace_stub;
trace_func_graph_ent_t ftrace_graph_entry = ftrace_graph_entry_stub;
+static trace_func_graph_ent_t __ftrace_graph_entry = ftrace_graph_entry_stub;
/* Try to assign a return stack array on FTRACE_RETSTACK_ALLOC_SIZE tasks. */
static int alloc_retstack_tasklist(struct ftrace_ret_stack **ret_stack_list)
@@ -4918,6 +4990,30 @@ static struct ftrace_ops fgraph_ops __read_mostly = {
FTRACE_OPS_FL_RECURSION_SAFE,
};
+static int ftrace_graph_entry_test(struct ftrace_graph_ent *trace)
+{
+ if (!ftrace_ops_test(&global_ops, trace->func, NULL))
+ return 0;
+ return __ftrace_graph_entry(trace);
+}
+
+/*
+ * The function graph tracer should only trace the functions defined
+ * by set_ftrace_filter and set_ftrace_notrace. If another function
+ * tracer ops is registered, the graph tracer requires testing the
+ * function against the global ops, and not just trace any function
+ * that any ftrace_ops registered.
+ */
+static void update_function_graph_func(void)
+{
+ if (ftrace_ops_list == &ftrace_list_end ||
+ (ftrace_ops_list == &global_ops &&
+ global_ops.next == &ftrace_list_end))
+ ftrace_graph_entry = __ftrace_graph_entry;
+ else
+ ftrace_graph_entry = ftrace_graph_entry_test;
+}
+
int register_ftrace_graph(trace_func_graph_ret_t retfunc,
trace_func_graph_ent_t entryfunc)
{
@@ -4942,7 +5038,16 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
}
ftrace_graph_return = retfunc;
- ftrace_graph_entry = entryfunc;
+
+ /*
+ * Update the indirect function to the entryfunc, and the
+ * function that gets called to the entry_test first. Then
+ * call the update fgraph entry function to determine if
+ * the entryfunc should be called directly or not.
+ */
+ __ftrace_graph_entry = entryfunc;
+ ftrace_graph_entry = ftrace_graph_entry_test;
+ update_function_graph_func();
ret = ftrace_startup(&fgraph_ops, FTRACE_START_FUNC_RET);
@@ -4961,6 +5066,7 @@ void unregister_ftrace_graph(void)
ftrace_graph_active--;
ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub;
ftrace_graph_entry = ftrace_graph_entry_stub;
+ __ftrace_graph_entry = ftrace_graph_entry_stub;
ftrace_shutdown(&fgraph_ops, FTRACE_STOP_FUNC_RET);
unregister_pm_notifier(&ftrace_suspend_notifier);
unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index b778e96e02a1..138077b1a607 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -435,6 +435,9 @@ int __trace_puts(unsigned long ip, const char *str, int size)
unsigned long irq_flags;
int alloc;
+ if (unlikely(tracing_selftest_running || tracing_disabled))
+ return 0;
+
alloc = sizeof(*entry) + size + 2; /* possible \n added */
local_save_flags(irq_flags);
@@ -475,6 +478,9 @@ int __trace_bputs(unsigned long ip, const char *str)
unsigned long irq_flags;
int size = sizeof(struct bputs_entry);
+ if (unlikely(tracing_selftest_running || tracing_disabled))
+ return 0;
+
local_save_flags(irq_flags);
buffer = global_trace.trace_buffer.buffer;
event = trace_buffer_lock_reserve(buffer, TRACE_BPUTS, size,
@@ -5872,6 +5878,8 @@ allocate_trace_buffer(struct trace_array *tr, struct trace_buffer *buf, int size
rb_flags = trace_flags & TRACE_ITER_OVERWRITE ? RB_FL_OVERWRITE : 0;
+ buf->tr = tr;
+
buf->buffer = ring_buffer_alloc(size, rb_flags);
if (!buf->buffer)
return -ENOMEM;
diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index bab1ba2a4c71..fd7d6d3d88a1 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -142,22 +142,22 @@ static inline unsigned alloc_local_tag(struct percpu_ida *pool,
/**
* percpu_ida_alloc - allocate a tag
* @pool: pool to allocate from
- * @gfp: gfp flags
+ * @state: task state for prepare_to_wait
*
* Returns a tag - an integer in the range [0..nr_tags) (passed to
* tag_pool_init()), or otherwise -ENOSPC on allocation failure.
*
* Safe to be called from interrupt context (assuming it isn't passed
- * __GFP_WAIT, of course).
+ * TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE, of course).
*
* @gfp indicates whether or not to wait until a free id is available (it's not
* used for internal memory allocations); thus if passed __GFP_WAIT we may sleep
* however long it takes until another thread frees an id (same semantics as a
* mempool).
*
- * Will not fail if passed __GFP_WAIT.
+ * Will not fail if passed TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE.
*/
-int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp)
+int percpu_ida_alloc(struct percpu_ida *pool, int state)
{
DEFINE_WAIT(wait);
struct percpu_ida_cpu *tags;
@@ -184,7 +184,8 @@ int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp)
*
* global lock held and irqs disabled, don't need percpu lock
*/
- prepare_to_wait(&pool->wait, &wait, TASK_UNINTERRUPTIBLE);
+ if (state != TASK_RUNNING)
+ prepare_to_wait(&pool->wait, &wait, state);
if (!tags->nr_free)
alloc_global_tags(pool, tags);
@@ -201,16 +202,22 @@ int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp)
spin_unlock(&pool->lock);
local_irq_restore(flags);
- if (tag >= 0 || !(gfp & __GFP_WAIT))
+ if (tag >= 0 || state == TASK_RUNNING)
break;
+ if (signal_pending_state(state, current)) {
+ tag = -ERESTARTSYS;
+ break;
+ }
+
schedule();
local_irq_save(flags);
tags = this_cpu_ptr(pool->tag_cpu);
}
+ if (state != TASK_RUNNING)
+ finish_wait(&pool->wait, &wait);
- finish_wait(&pool->wait, &wait);
return tag;
}
EXPORT_SYMBOL_GPL(percpu_ida_alloc);
diff --git a/mm/internal.h b/mm/internal.h
index 684f7aa9692a..8b6cfd63b5a5 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -85,7 +85,6 @@ extern unsigned long highest_memmap_pfn;
*/
extern int isolate_lru_page(struct page *page);
extern void putback_lru_page(struct page *page);
-extern unsigned long zone_reclaimable_pages(struct zone *zone);
extern bool zone_reclaimable(struct zone *zone);
/*
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e0e979276df0..8e7adcba8176 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1079,16 +1079,22 @@ skip_node:
* skipped and we should continue the tree walk.
* last_visited css is safe to use because it is
* protected by css_get and the tree walk is rcu safe.
+ *
+ * We do not take a reference on the root of the tree walk
+ * because we might race with the root removal when it would
+ * be the only node in the iterated hierarchy and mem_cgroup_iter
+ * would end up in an endless loop because it expects that at
+ * least one valid node will be returned. Root cannot disappear
+ * because caller of the iterator should hold it already so
+ * skipping css reference should be safe.
*/
if (next_css) {
- struct mem_cgroup *mem = mem_cgroup_from_css(next_css);
+ if ((next_css->flags & CSS_ONLINE) &&
+ (next_css == &root->css || css_tryget(next_css)))
+ return mem_cgroup_from_css(next_css);
- if (css_tryget(&mem->css))
- return mem;
- else {
- prev_css = next_css;
- goto skip_node;
- }
+ prev_css = next_css;
+ goto skip_node;
}
return NULL;
@@ -1122,7 +1128,15 @@ mem_cgroup_iter_load(struct mem_cgroup_reclaim_iter *iter,
if (iter->last_dead_count == *sequence) {
smp_rmb();
position = iter->last_visited;
- if (position && !css_tryget(&position->css))
+
+ /*
+ * We cannot take a reference to root because we might race
+ * with root removal and returning NULL would end up in
+ * an endless loop on the iterator user level when root
+ * would be returned all the time.
+ */
+ if (position && position != root &&
+ !css_tryget(&position->css))
position = NULL;
}
return position;
@@ -1131,9 +1145,11 @@ mem_cgroup_iter_load(struct mem_cgroup_reclaim_iter *iter,
static void mem_cgroup_iter_update(struct mem_cgroup_reclaim_iter *iter,
struct mem_cgroup *last_visited,
struct mem_cgroup *new_position,
+ struct mem_cgroup *root,
int sequence)
{
- if (last_visited)
+ /* root reference counting symmetric to mem_cgroup_iter_load */
+ if (last_visited && last_visited != root)
css_put(&last_visited->css);
/*
* We store the sequence count from the time @last_visited was
@@ -1208,7 +1224,8 @@ struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
memcg = __mem_cgroup_iter_next(root, last_visited);
if (reclaim) {
- mem_cgroup_iter_update(iter, last_visited, memcg, seq);
+ mem_cgroup_iter_update(iter, last_visited, memcg, root,
+ seq);
if (!memcg)
iter->generation++;
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 9aea53f4551c..428adeedd3be 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -856,14 +856,14 @@ static int page_action(struct page_state *ps, struct page *p,
* the pages and send SIGBUS to the processes if the data was dirty.
*/
static int hwpoison_user_mappings(struct page *p, unsigned long pfn,
- int trapno, int flags)
+ int trapno, int flags, struct page **hpagep)
{
enum ttu_flags ttu = TTU_UNMAP | TTU_IGNORE_MLOCK | TTU_IGNORE_ACCESS;
struct address_space *mapping;
LIST_HEAD(tokill);
int ret;
int kill = 1, forcekill;
- struct page *hpage = compound_head(p);
+ struct page *hpage = *hpagep;
struct page *ppage;
if (PageReserved(p) || PageSlab(p))
@@ -942,11 +942,14 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn,
* We pinned the head page for hwpoison handling,
* now we split the thp and we are interested in
* the hwpoisoned raw page, so move the refcount
- * to it.
+ * to it. Similarly, page lock is shifted.
*/
if (hpage != p) {
put_page(hpage);
get_page(p);
+ lock_page(p);
+ unlock_page(hpage);
+ *hpagep = p;
}
/* THP is split, so ppage should be the real poisoned page. */
ppage = p;
@@ -964,17 +967,11 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn,
if (kill)
collect_procs(ppage, &tokill);
- if (hpage != ppage)
- lock_page(ppage);
-
ret = try_to_unmap(ppage, ttu);
if (ret != SWAP_SUCCESS)
printk(KERN_ERR "MCE %#lx: failed to unmap page (mapcount=%d)\n",
pfn, page_mapcount(ppage));
- if (hpage != ppage)
- unlock_page(ppage);
-
/*
* Now that the dirty bit has been propagated to the
* struct page and all unmaps done we can decide if
@@ -1193,8 +1190,12 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
/*
* Now take care of user space mappings.
* Abort on fail: __delete_from_page_cache() assumes unmapped page.
+ *
+ * When the raw error page is thp tail page, hpage points to the raw
+ * page after thp split.
*/
- if (hwpoison_user_mappings(p, pfn, trapno, flags) != SWAP_SUCCESS) {
+ if (hwpoison_user_mappings(p, pfn, trapno, flags, &hpage)
+ != SWAP_SUCCESS) {
printk(KERN_ERR "MCE %#lx: cannot unmap page, give up\n", pfn);
res = -EBUSY;
goto out;
diff --git a/mm/mmap.c b/mm/mmap.c
index 362e5f1327ec..af99b9ed2007 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -895,7 +895,15 @@ again: remove_next = 1 + (end > next->vm_end);
static inline int is_mergeable_vma(struct vm_area_struct *vma,
struct file *file, unsigned long vm_flags)
{
- if (vma->vm_flags ^ vm_flags)
+ /*
+ * VM_SOFTDIRTY should not prevent from VMA merging, if we
+ * match the flags but dirty bit -- the caller should mark
+ * merged VMA as dirty. If dirty bit won't be excluded from
+ * comparison, we increase pressue on the memory system forcing
+ * the kernel to generate new VMAs when old one could be
+ * extended instead.
+ */
+ if ((vma->vm_flags ^ vm_flags) & ~VM_SOFTDIRTY)
return 0;
if (vma->vm_file != file)
return 0;
@@ -1084,7 +1092,7 @@ static int anon_vma_compatible(struct vm_area_struct *a, struct vm_area_struct *
return a->vm_end == b->vm_start &&
mpol_equal(vma_policy(a), vma_policy(b)) &&
a->vm_file == b->vm_file &&
- !((a->vm_flags ^ b->vm_flags) & ~(VM_READ|VM_WRITE|VM_EXEC)) &&
+ !((a->vm_flags ^ b->vm_flags) & ~(VM_READ|VM_WRITE|VM_EXEC|VM_SOFTDIRTY)) &&
b->vm_pgoff == a->vm_pgoff + ((b->vm_start - a->vm_start) >> PAGE_SHIFT);
}
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 6738c47f1f72..e73f01c56d10 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -170,7 +170,7 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
* implementation used by LSMs.
*/
if (has_capability_noaudit(p, CAP_SYS_ADMIN))
- adj -= 30;
+ points -= (points * 3) / 100;
/* Normalize to oom_score_adj units */
adj *= totalpages / 1000;
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 63807583d8e8..2d30e2cfe804 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -191,6 +191,26 @@ static unsigned long writeout_period_time = 0;
* global dirtyable memory first.
*/
+/**
+ * zone_dirtyable_memory - number of dirtyable pages in a zone
+ * @zone: the zone
+ *
+ * Returns the zone's number of pages potentially available for dirty
+ * page cache. This is the base value for the per-zone dirty limits.
+ */
+static unsigned long zone_dirtyable_memory(struct zone *zone)
+{
+ unsigned long nr_pages;
+
+ nr_pages = zone_page_state(zone, NR_FREE_PAGES);
+ nr_pages -= min(nr_pages, zone->dirty_balance_reserve);
+
+ nr_pages += zone_page_state(zone, NR_INACTIVE_FILE);
+ nr_pages += zone_page_state(zone, NR_ACTIVE_FILE);
+
+ return nr_pages;
+}
+
static unsigned long highmem_dirtyable_memory(unsigned long total)
{
#ifdef CONFIG_HIGHMEM
@@ -198,11 +218,9 @@ static unsigned long highmem_dirtyable_memory(unsigned long total)
unsigned long x = 0;
for_each_node_state(node, N_HIGH_MEMORY) {
- struct zone *z =
- &NODE_DATA(node)->node_zones[ZONE_HIGHMEM];
+ struct zone *z = &NODE_DATA(node)->node_zones[ZONE_HIGHMEM];
- x += zone_page_state(z, NR_FREE_PAGES) +
- zone_reclaimable_pages(z) - z->dirty_balance_reserve;
+ x += zone_dirtyable_memory(z);
}
/*
* Unreclaimable memory (kernel memory or anonymous memory
@@ -238,9 +256,12 @@ static unsigned long global_dirtyable_memory(void)
{
unsigned long x;
- x = global_page_state(NR_FREE_PAGES) + global_reclaimable_pages();
+ x = global_page_state(NR_FREE_PAGES);
x -= min(x, dirty_balance_reserve);
+ x += global_page_state(NR_INACTIVE_FILE);
+ x += global_page_state(NR_ACTIVE_FILE);
+
if (!vm_highmem_is_dirtyable)
x -= highmem_dirtyable_memory(x);
@@ -289,32 +310,6 @@ void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty)
}
/**
- * zone_dirtyable_memory - number of dirtyable pages in a zone
- * @zone: the zone
- *
- * Returns the zone's number of pages potentially available for dirty
- * page cache. This is the base value for the per-zone dirty limits.
- */
-static unsigned long zone_dirtyable_memory(struct zone *zone)
-{
- /*
- * The effective global number of dirtyable pages may exclude
- * highmem as a big-picture measure to keep the ratio between
- * dirty memory and lowmem reasonable.
- *
- * But this function is purely about the individual zone and a
- * highmem zone can hold its share of dirty pages, so we don't
- * care about vm_highmem_is_dirtyable here.
- */
- unsigned long nr_pages = zone_page_state(zone, NR_FREE_PAGES) +
- zone_reclaimable_pages(zone);
-
- /* don't allow this to underflow */
- nr_pages -= min(nr_pages, zone->dirty_balance_reserve);
- return nr_pages;
-}
-
-/**
* zone_dirty_limit - maximum number of dirty pages allowed in a zone
* @zone: the zone
*
diff --git a/mm/slub.c b/mm/slub.c
index 96f21691b67c..5c1343a391d0 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4272,7 +4272,13 @@ static ssize_t show_slab_objects(struct kmem_cache *s,
page = ACCESS_ONCE(c->partial);
if (page) {
- x = page->pobjects;
+ node = page_to_nid(page);
+ if (flags & SO_TOTAL)
+ WARN_ON_ONCE(1);
+ else if (flags & SO_OBJECTS)
+ WARN_ON_ONCE(1);
+ else
+ x = page->pages;
total += x;
nodes[node] += x;
}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index eea668d9cff6..05e6095159dc 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -147,7 +147,7 @@ static bool global_reclaim(struct scan_control *sc)
}
#endif
-unsigned long zone_reclaimable_pages(struct zone *zone)
+static unsigned long zone_reclaimable_pages(struct zone *zone)
{
int nr;
@@ -3297,27 +3297,6 @@ void wakeup_kswapd(struct zone *zone, int order, enum zone_type classzone_idx)
wake_up_interruptible(&pgdat->kswapd_wait);
}
-/*
- * The reclaimable count would be mostly accurate.
- * The less reclaimable pages may be
- * - mlocked pages, which will be moved to unevictable list when encountered
- * - mapped pages, which may require several travels to be reclaimed
- * - dirty pages, which is not "instantly" reclaimable
- */
-unsigned long global_reclaimable_pages(void)
-{
- int nr;
-
- nr = global_page_state(NR_ACTIVE_FILE) +
- global_page_state(NR_INACTIVE_FILE);
-
- if (get_nr_swap_pages() > 0)
- nr += global_page_state(NR_ACTIVE_ANON) +
- global_page_state(NR_INACTIVE_ANON);
-
- return nr;
-}
-
#ifdef CONFIG_HIBERNATION
/*
* Try to free `nr_to_reclaim' of memory, system-wide, and return the number of
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 743e6ebf5f9f..2c7baa809913 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -74,36 +74,6 @@
struct kmem_cache *skbuff_head_cache __read_mostly;
static struct kmem_cache *skbuff_fclone_cache __read_mostly;
-static void sock_pipe_buf_release(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- put_page(buf->page);
-}
-
-static void sock_pipe_buf_get(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- get_page(buf->page);
-}
-
-static int sock_pipe_buf_steal(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
-{
- return 1;
-}
-
-
-/* Pipe buffer operations for a socket. */
-static const struct pipe_buf_operations sock_pipe_buf_ops = {
- .can_merge = 0,
- .map = generic_pipe_buf_map,
- .unmap = generic_pipe_buf_unmap,
- .confirm = generic_pipe_buf_confirm,
- .release = sock_pipe_buf_release,
- .steal = sock_pipe_buf_steal,
- .get = sock_pipe_buf_get,
-};
-
/**
* skb_panic - private function for out-of-line support
* @skb: buffer
@@ -1800,7 +1770,7 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
.partial = partial,
.nr_pages_max = MAX_SKB_FRAGS,
.flags = flags,
- .ops = &sock_pipe_buf_ops,
+ .ops = &nosteal_pipe_buf_ops,
.spd_release = sock_spd_release,
};
struct sk_buff *frag_iter;
diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index f1eb0d16666c..23fa3c1841cd 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -137,7 +137,6 @@ void init_gssp_clnt(struct sunrpc_net *sn)
{
mutex_init(&sn->gssp_lock);
sn->gssp_clnt = NULL;
- init_waitqueue_head(&sn->gssp_wq);
}
int set_gssp_clnt(struct net *net)
@@ -154,7 +153,6 @@ int set_gssp_clnt(struct net *net)
sn->gssp_clnt = clnt;
}
mutex_unlock(&sn->gssp_lock);
- wake_up(&sn->gssp_wq);
return ret;
}
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 09fb638bcaa4..e18be86dc486 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1295,34 +1295,9 @@ static int set_gss_proxy(struct net *net, int type)
else
ret = -EBUSY;
spin_unlock(&use_gssp_lock);
- wake_up(&sn->gssp_wq);
return ret;
}
-static inline bool gssp_ready(struct sunrpc_net *sn)
-{
- switch (sn->use_gss_proxy) {
- case -1:
- return false;
- case 0:
- return true;
- case 1:
- return sn->gssp_clnt;
- }
- WARN_ON_ONCE(1);
- return false;
-}
-
-static int wait_for_gss_proxy(struct net *net, struct file *file)
-{
- struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
-
- if (file->f_flags & O_NONBLOCK && !gssp_ready(sn))
- return -EAGAIN;
- return wait_event_interruptible(sn->gssp_wq, gssp_ready(sn));
-}
-
-
static ssize_t write_gssp(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
@@ -1355,16 +1330,12 @@ static ssize_t read_gssp(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
struct net *net = PDE_DATA(file_inode(file));
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
unsigned long p = *ppos;
char tbuf[10];
size_t len;
- int ret;
-
- ret = wait_for_gss_proxy(net, file);
- if (ret)
- return ret;
- snprintf(tbuf, sizeof(tbuf), "%d\n", use_gss_proxy(net));
+ snprintf(tbuf, sizeof(tbuf), "%d\n", sn->use_gss_proxy);
len = strlen(tbuf);
if (p >= len)
return 0;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 941d19f8c999..f318a95ec64d 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1433,9 +1433,13 @@ call_refreshresult(struct rpc_task *task)
task->tk_action = call_refresh;
switch (status) {
case 0:
- if (rpcauth_uptodatecred(task))
+ if (rpcauth_uptodatecred(task)) {
task->tk_action = call_allocate;
- return;
+ return;
+ }
+ /* Use rate-limiting and a max number of retries if refresh
+ * had status 0 but failed to update the cred.
+ */
case -ETIMEDOUT:
rpc_delay(task, 3*HZ);
case -EAGAIN:
diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
index 779742cfc1ff..3a260e47fad2 100644
--- a/net/sunrpc/netns.h
+++ b/net/sunrpc/netns.h
@@ -26,7 +26,6 @@ struct sunrpc_net {
unsigned int rpcb_is_af_local : 1;
struct mutex gssp_lock;
- wait_queue_head_t gssp_wq;
struct rpc_clnt *gssp_clnt;
int use_gss_proxy;
int pipe_version;
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index c8adde3aff8f..7e5bceddc36f 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -1941,7 +1941,19 @@ static int filename_trans_read(struct policydb *p, void *fp)
if (rc)
goto out;
- hashtab_insert(p->filename_trans, ft, otype);
+ rc = hashtab_insert(p->filename_trans, ft, otype);
+ if (rc) {
+ /*
+ * Do not return -EEXIST to the caller, or the system
+ * will not boot.
+ */
+ if (rc != -EEXIST)
+ goto out;
+ /* But free memory to avoid memory leak. */
+ kfree(ft);
+ kfree(name);
+ kfree(otype);
+ }
}
hash_eval(p->filename_trans, "filenametr");
return 0;
diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile
index f09641da40d4..d1b3a361e526 100644
--- a/tools/power/x86/turbostat/Makefile
+++ b/tools/power/x86/turbostat/Makefile
@@ -5,7 +5,7 @@ DESTDIR :=
turbostat : turbostat.c
CFLAGS += -Wall
-CFLAGS += -I../../../../arch/x86/include/uapi/
+CFLAGS += -DMSRHEADER='"../../../../arch/x86/include/uapi/asm/msr-index.h"'
%: %.c
@mkdir -p $(BUILD_OUTPUT)
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index fe702076ca46..6a7ee5f21c9b 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -20,7 +20,7 @@
*/
#define _GNU_SOURCE
-#include <asm/msr.h>
+#include MSRHEADER
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
@@ -35,6 +35,7 @@
#include <string.h>
#include <ctype.h>
#include <sched.h>
+#include <cpuid.h>
char *proc_stat = "/proc/stat";
unsigned int interval_sec = 5; /* set with -i interval_sec */
@@ -1894,7 +1895,7 @@ void check_cpuid()
eax = ebx = ecx = edx = 0;
- asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0));
+ __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
genuine_intel = 1;
@@ -1903,7 +1904,7 @@ void check_cpuid()
fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
(char *)&ebx, (char *)&edx, (char *)&ecx);
- asm("cpuid" : "=a" (fms), "=c" (ecx), "=d" (edx) : "a" (1) : "ebx");
+ __get_cpuid(1, &fms, &ebx, &ecx, &edx);
family = (fms >> 8) & 0xf;
model = (fms >> 4) & 0xf;
stepping = fms & 0xf;
@@ -1925,7 +1926,7 @@ void check_cpuid()
* This check is valid for both Intel and AMD.
*/
ebx = ecx = edx = 0;
- asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000000));
+ __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
if (max_level < 0x80000007) {
fprintf(stderr, "CPUID: no invariant TSC (max_level 0x%x)\n", max_level);
@@ -1936,7 +1937,7 @@ void check_cpuid()
* Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
* this check is valid for both Intel and AMD
*/
- asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007));
+ __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
has_invariant_tsc = edx & (1 << 8);
if (!has_invariant_tsc) {
@@ -1949,7 +1950,7 @@ void check_cpuid()
* this check is valid for both Intel and AMD
*/
- asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6));
+ __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
has_aperf = ecx & (1 << 0);
do_dts = eax & (1 << 0);
do_ptm = eax & (1 << 6);
--
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