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authorOndrej Zary <linux@rainbow-software.org>2015-10-01 23:22:54 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2015-10-08 12:19:39 +0300
commit38fc4d45fae58d81786acfe81a13ec0c93b01c98 (patch)
tree0f4252be074031bb3e0458c8d2a4ed35978a4714 /drivers/video
parent3c083aa9d2a7b8904c6bd68628c7dfdf9d413816 (diff)
gxt4500: Use arch_phys_wc_* for framebuffer
Add arch_phys_wc_* calls to allow write-combining using MTRR. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/gxt4500.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/video/fbdev/gxt4500.c b/drivers/video/fbdev/gxt4500.c
index 3ceddb837085..31de6500efd0 100644
--- a/drivers/video/fbdev/gxt4500.c
+++ b/drivers/video/fbdev/gxt4500.c
@@ -142,7 +142,7 @@ static const unsigned char watfmt[] = {
struct gxt4500_par {
void __iomem *regs;
-
+ int wc_cookie;
int pixfmt; /* pixel format, see DFA_PIX_* values */
/* PLL parameters */
@@ -671,6 +671,9 @@ static int gxt4500_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_set_drvdata(pdev, info);
+ par->wc_cookie = arch_phys_wc_add(info->fix.smem_start,
+ info->fix.smem_len);
+
#ifdef __BIG_ENDIAN
/* Set byte-swapping for DFA aperture for all pixel sizes */
pci_write_config_dword(pdev, CFG_ENDIAN0, 0x333300);
@@ -735,6 +738,7 @@ static void gxt4500_remove(struct pci_dev *pdev)
return;
par = info->par;
unregister_framebuffer(info);
+ arch_phys_wc_del(par->wc_cookie);
fb_dealloc_cmap(&info->cmap);
iounmap(par->regs);
iounmap(info->screen_base);