Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
arch/sparc/kernel/pci.c | 14 +++++++-------
arch/sparc/kernel/pci_common.c | 36 +++++++++++++++++++++++++++---------
arch/sparc/kernel/pci_impl.h | 3 +++
3 files changed, 37 insertions(+), 16 deletions(-)
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index badf095..451792e 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -654,12 +654,12 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
printk("PCI: Scanning PBM %s\n", node->full_name);
pci_add_resource_offset(&resources, &pbm->io_space,
- pbm->io_space.start);
+ pbm->io_offset);
pci_add_resource_offset(&resources, &pbm->mem_space,
- pbm->mem_space.start);
+ pbm->mem_offset);
if (pbm->mem64_space.flags)
pci_add_resource_offset(&resources, &pbm->mem64_space,
- pbm->mem_space.start);
+ pbm->mem_offset);
pbm->busn.start = pbm->pci_first_busno;
pbm->busn.end = pbm->pci_last_busno;
pbm->busn.flags = IORESOURCE_BUS;
@@ -751,10 +751,10 @@ static int __pci_mmap_make_offset_bus(struct pci_dev *pdev, struct vm_area_struc
return -EINVAL;
if (mmap_state == pci_mmap_io) {
- vma->vm_pgoff = (pbm->io_space.start +
+ vma->vm_pgoff = (pbm->io_offset +
user_offset) >> PAGE_SHIFT;
} else {
- vma->vm_pgoff = (pbm->mem_space.start +
+ vma->vm_pgoff = (pbm->mem_offset +
user_offset) >> PAGE_SHIFT;
}
@@ -981,9 +981,9 @@ void pci_resource_to_user(const struct pci_dev *pdev, int bar,
unsigned long offset;
if (rp->flags & IORESOURCE_IO)
- offset = pbm->io_space.start;
+ offset = pbm->io_offset;
else
- offset = pbm->mem_space.start;
+ offset = pbm->mem_offset;
*start = rp->start - offset;
*end = rp->end - offset;
diff --git a/arch/sparc/kernel/pci_common.c b/arch/sparc/kernel/pci_common.c
index 33524c1..28e976a 100644
--- a/arch/sparc/kernel/pci_common.c
+++ b/arch/sparc/kernel/pci_common.c
@@ -393,6 +393,7 @@ static void pci_register_iommu_region(struct pci_pbm_info *pbm)
void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
{
const struct linux_prom_pci_ranges *pbm_ranges;
+ resource_size_t mem64_offset = 0;
int i, saw_mem, saw_io;
int num_pbm_ranges;
@@ -410,13 +411,16 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
for (i = 0; i < num_pbm_ranges; i++) {
const struct linux_prom_pci_ranges *pr = &pbm_ranges[i];
- unsigned long a, size;
+ unsigned long a, size, region_a;
u32 parent_phys_hi, parent_phys_lo;
+ u32 child_phys_mid, child_phys_lo;
u32 size_hi, size_lo;
int type;
parent_phys_hi = pr->parent_phys_hi;
parent_phys_lo = pr->parent_phys_lo;
+ child_phys_mid = pr->child_phys_mid;
+ child_phys_lo = pr->child_phys_lo;
if (tlb_type == hypervisor)
parent_phys_hi &= 0x0fffffff;
@@ -426,6 +430,8 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
type = (pr->child_phys_hi >> 24) & 0x3;
a = (((unsigned long)parent_phys_hi << 32UL) |
((unsigned long)parent_phys_lo << 0UL));
+ region_a = (((unsigned long)child_phys_mid << 32UL) |
+ ((unsigned long)child_phys_lo << 0UL));
size = (((unsigned long)size_hi << 32UL) |
((unsigned long)size_lo << 0UL));
@@ -440,6 +446,7 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
pbm->io_space.start = a;
pbm->io_space.end = a + size - 1UL;
pbm->io_space.flags = IORESOURCE_IO;
+ pbm->io_offset = a - region_a;
saw_io = 1;
break;
@@ -448,6 +455,7 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
pbm->mem_space.start = a;
pbm->mem_space.end = a + size - 1UL;
pbm->mem_space.flags = IORESOURCE_MEM;
+ pbm->mem_offset = a - region_a;
saw_mem = 1;
break;
@@ -456,6 +464,7 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
pbm->mem64_space.start = a;
pbm->mem64_space.end = a + size - 1UL;
pbm->mem64_space.flags = IORESOURCE_MEM;
+ mem64_offset = a - region_a;
saw_mem = 1;
break;
@@ -471,14 +480,23 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
prom_halt();
}
- printk("%s: PCI IO[%llx] MEM[%llx]",
- pbm->name,
- pbm->io_space.start,
- pbm->mem_space.start);
- if (pbm->mem64_space.flags)
- printk(" MEM64[%llx]",
- pbm->mem64_space.start);
- printk("\n");
+ if (pbm->io_space.flags)
+ printk("%s: PCI IO %pR offset %llx\n",
+ pbm->name, &pbm->io_space, pbm->io_offset);
+ if (pbm->mem_space.flags)
+ printk("%s: PCI MEM %pR offset %llx\n",
+ pbm->name, &pbm->mem_space, pbm->mem_offset);
+ if (pbm->mem64_space.flags) {
+ if (pbm->mem_space.flags) {
+ if (mem64_offset != pbm->mem_offset)
+ panic("mem offset %llx != mem64 offset %llx\n",
+ pbm->mem_offset, mem64_offset);
+ } else
+ pbm->mem_offset = mem64_offset;
+
+ printk("%s: PCI MEM64 %pR offset %llx\n",
+ pbm->name, &pbm->mem64_space, pbm->mem_offset);
+ }
pbm->io_space.name = pbm->mem_space.name = pbm->name;
pbm->mem64_space.name = pbm->name;
diff --git a/arch/sparc/kernel/pci_impl.h b/arch/sparc/kernel/pci_impl.h
index 37222ca..08b74af 100644
--- a/arch/sparc/kernel/pci_impl.h
+++ b/arch/sparc/kernel/pci_impl.h
@@ -99,6 +99,9 @@ struct pci_pbm_info {
struct resource mem_space;
struct resource mem64_space;
struct resource busn;
+ /* offset */
+ resource_size_t io_offset;
+ resource_size_t mem_offset;
/* Base of PCI Config space, can be per-PBM or shared. */
unsigned long config_space;
--
1.8.4.5
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html