The patch titled
tdfxfb: mtrr support
has been added to the -mm tree. Its filename is
tdfxfb-mtrr-support.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: tdfxfb: mtrr support
From: Krzysztof Helt <krzysztof.h1@xxxxx>
This patch adds mtrr support to the tdfxfb driver. It also kills one
redundant include and initialization value.
Signed-off-by: Krzysztof Helt <krzysztof.h1@xxxxx>
Signed-off-by: Antonino Daplas <adaplas@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/tdfxfb.c | 43 +++++++++++++++++++++++++++++++++++++--
include/video/tdfx.h | 1
2 files changed, 42 insertions(+), 2 deletions(-)
diff -puN drivers/video/tdfxfb.c~tdfxfb-mtrr-support drivers/video/tdfxfb.c
--- a/drivers/video/tdfxfb.c~tdfxfb-mtrr-support
+++ a/drivers/video/tdfxfb.c
@@ -67,7 +67,6 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/io.h>
-#include <linux/spinlock.h>
#include <video/tdfx.h>
@@ -78,6 +77,24 @@
#define DPRINTK(a,b...)
#endif
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#else
+/* duplicate asm/mtrr.h defines to work on archs without mtrr */
+#define MTRR_TYPE_WRCOMB 1
+
+static __inline__ int mtrr_add (unsigned long base, unsigned long size,
+ unsigned int type, char increment)
+{
+ return -ENODEV;
+}
+static __inline__ int mtrr_del (int reg, unsigned long base,
+ unsigned long size)
+{
+ return -ENODEV;
+}
+#endif
+
#define BANSHEE_MAX_PIXCLOCK 270000
#define VOODOO3_MAX_PIXCLOCK 300000
#define VOODOO5_MAX_PIXCLOCK 350000
@@ -150,7 +167,9 @@ MODULE_DEVICE_TABLE(pci, tdfxfb_id_table
static int nopan;
static int nowrap = 1; /* not implemented (yet) */
static int hwcursor = 1;
-static char *mode_option __devinitdata = NULL;
+static char *mode_option __devinitdata;
+/* mtrr option */
+static int nomtrr __devinitdata;
/* -------------------------------------------------------------------------
* Hardware-specific funcions
@@ -1227,6 +1246,12 @@ static int __devinit tdfxfb_probe(struct
printk("fb: %s memory = %dK\n", tdfx_fix.id, tdfx_fix.smem_len >> 10);
+ default_par->mtrr_handle = -1;
+ if (!nomtrr)
+ default_par->mtrr_handle =
+ mtrr_add(tdfx_fix.smem_start, tdfx_fix.smem_len,
+ MTRR_TYPE_WRCOMB, 1);
+
tdfx_fix.ypanstep = nopan ? 0 : 1;
tdfx_fix.ywrapstep = nowrap ? 0 : 1;
@@ -1276,6 +1301,9 @@ static int __devinit tdfxfb_probe(struct
return 0;
out_err_iobase:
+ if (default_par->mtrr_handle >= 0)
+ mtrr_del(default_par->mtrr_handle, info->fix.smem_start,
+ info->fix.smem_len);
release_mem_region(pci_resource_start(pdev, 2),
pci_resource_len(pdev, 2));
out_err_screenbase:
@@ -1311,6 +1339,10 @@ static void tdfxfb_setup(char *options)
nowrap = 1;
} else if (!strcmp(this_opt, "hwcursor")) {
hwcursor = simple_strtoul(opt + 9, NULL, 0);
+#ifdef CONFIG_MTRR
+ } else if (!strncmp(this_opt, "nomtrr", 6)) {
+ nomtrr = 1;
+#endif
} else {
mode_option = this_opt;
}
@@ -1333,6 +1365,9 @@ static void __devexit tdfxfb_remove(stru
struct tdfx_par *par = info->par;
unregister_framebuffer(info);
+ if (par->mtrr_handle >= 0)
+ mtrr_del(par->mtrr_handle, info->fix.smem_start,
+ info->fix.smem_len);
iounmap(par->regbase_virt);
iounmap(info->screen_base);
@@ -1372,6 +1407,10 @@ MODULE_LICENSE("GPL");
module_param(hwcursor, int, 0644);
MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
"(1=enable, 0=disable, default=1)");
+#ifdef CONFIG_MTRR
+module_param(nomtrr, bool, 0);
+MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");
+#endif
module_init(tdfxfb_init);
module_exit(tdfxfb_exit);
diff -puN include/video/tdfx.h~tdfxfb-mtrr-support include/video/tdfx.h
--- a/include/video/tdfx.h~tdfxfb-mtrr-support
+++ a/include/video/tdfx.h
@@ -175,6 +175,7 @@ struct tdfx_par {
u32 palette[16];
void __iomem *regbase_virt;
unsigned long iobase;
+ int mtrr_handle;
};
#endif /* __KERNEL__ */
_
Patches currently in -mm which might be from krzysztof.h1@xxxxx are
git-hwmon.patch
pm3fb-copyarea-and-partial-imageblit-suppor.patch
skeletonfb-wrong-field-name-fix.patch
pm3fb-header-file-reduction.patch
pm3fb-imageblit-improved.patch
pm3fb-3-small-fixes.patch
pm3fb-improvements-and-cleanups.patch
pm3fb-mtrr-support-and-noaccel-option.patch
pm2fb-mtrr-support-and-noaccel-option.patch
pm2fb-accelerated-imageblit.patch
pm2fb-source-code-improvements.patch
pm2fb-permedia-2v-initialization-fixes.patch
pm2fb-accelerated-24-bit-fillrect.patch
tridentfb-coding-style-improvement.patch
tdfxfb-coding-style-improvement.patch
tdfxfb-3-fixes.patch
tdfxfb-palette-fixes.patch
tdfxfb-code-improvements.patch
tdfxfb-hardware-cursor.patch
tdfxfb-mtrr-support.patch
pm2fb-checkpatch-fixes.patch
pm3fb-checkpatch-fixes.patch
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