diff options
Diffstat (limited to 'drivers/video/fbdev/gbefb.c')
| -rw-r--r-- | drivers/video/fbdev/gbefb.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/video/fbdev/gbefb.c b/drivers/video/fbdev/gbefb.c index 6d9ef39810c8..4e54faa066dc 100644 --- a/drivers/video/fbdev/gbefb.c +++ b/drivers/video/fbdev/gbefb.c @@ -38,6 +38,7 @@ static struct sgi_gbe *gbe; struct gbefb_par { struct fb_var_screeninfo var; struct gbe_timing_info timing; + int wc_cookie; int valid; }; @@ -1198,8 +1199,10 @@ static int gbefb_probe(struct platform_device *p_dev) gbe_mem_phys = (unsigned long) gbe_dma_addr; } + par = info->par; #ifdef CONFIG_X86 - mtrr_add(gbe_mem_phys, gbe_mem_size, MTRR_TYPE_WRCOMB, 1); + par->wc_cookie = mtrr_add(gbe_mem_phys, gbe_mem_size, + MTRR_TYPE_WRCOMB, 1); #endif /* map framebuffer memory into tiles table */ @@ -1215,7 +1218,6 @@ static int gbefb_probe(struct platform_device *p_dev) /* reset GBE */ gbe_reset(); - par = info->par; /* turn on default video mode */ if (fb_find_mode(&par->var, info, mode_option, NULL, 0, default_mode, 8) == 0) @@ -1240,6 +1242,10 @@ static int gbefb_probe(struct platform_device *p_dev) return 0; out_gbe_unmap: +#ifdef CONFIG_MTRR + if (par->wc_cookie >= 0) + mtrr_del(par->wc_cookie, 0, 0); +#endif if (gbe_dma_addr) dma_free_coherent(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys); out_tiles_free: @@ -1256,9 +1262,14 @@ out_release_framebuffer: static int gbefb_remove(struct platform_device* p_dev) { struct fb_info *info = platform_get_drvdata(p_dev); + struct gbefb_par *par = info->par; unregister_framebuffer(info); gbe_turn_off(); +#ifdef CONFIG_MTRR + if (par->wc_cookie >= 0) + mtrr_del(par->wc_cookie, 0, 0); +#endif if (gbe_dma_addr) dma_free_coherent(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys); dma_free_coherent(NULL, GBE_TLB_SIZE * sizeof(uint16_t), |