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authorAlex Deucher <alexander.deucher@amd.com>2013-09-26 11:00:49 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-09-27 17:29:50 -0400
commit41dfe327ac8740ac2cd84def96b5947224e422e7 (patch)
treee9abb83f2897922184362d2aa726c1723dac3edd /src
parentc45e728107269c6f51599dad4f6a02ccfef703f1 (diff)
radeon: fix limit handling for cards with >4G of ram
We can overflow the 32-bit limit. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Diffstat (limited to 'src')
-rw-r--r--src/drmmode_display.c2
-rw-r--r--src/radeon.h2
-rw-r--r--src/radeon_kms.c14
3 files changed, 11 insertions, 7 deletions
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 921b7ba9..76b79d8c 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -1478,7 +1478,7 @@ drmmode_xf86crtc_resize (ScrnInfoPtr scrn, int width, int height)
ScreenPtr screen = xf86ScrnToScreen(scrn);
uint32_t old_fb_id;
int i, pitch, old_width, old_height, old_pitch;
- int screen_size;
+ uint32_t screen_size;
int cpp = info->pixel_bytes;
struct radeon_bo *front_bo;
struct radeon_surface surface;
diff --git a/src/radeon.h b/src/radeon.h
index 46608938..f1817e74 100644
--- a/src/radeon.h
+++ b/src/radeon.h
@@ -524,7 +524,7 @@ extern void radeon_cs_flush_indirect(ScrnInfoPtr pScrn);
extern void radeon_ddx_cs_start(ScrnInfoPtr pScrn,
int num, const char *file,
const char *func, int line);
-void radeon_kms_update_vram_limit(ScrnInfoPtr pScrn, int new_fb_size);
+void radeon_kms_update_vram_limit(ScrnInfoPtr pScrn, uint32_t new_fb_size);
extern RADEONEntPtr RADEONEntPriv(ScrnInfoPtr pScrn);
drmVBlankSeqType radeon_populate_vbl_request_type(xf86CrtcPtr crtc);
diff --git a/src/radeon_kms.c b/src/radeon_kms.c
index 82e88d44..9708dc75 100644
--- a/src/radeon_kms.c
+++ b/src/radeon_kms.c
@@ -1450,7 +1450,7 @@ static Bool radeon_setup_kernel_mem(ScreenPtr pScreen)
RADEONInfoPtr info = RADEONPTR(pScrn);
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
int cpp = info->pixel_bytes;
- int screen_size;
+ uint32_t screen_size;
int pitch, base_align;
uint32_t tiling_flags = 0;
struct radeon_surface surface;
@@ -1600,11 +1600,11 @@ static Bool radeon_setup_kernel_mem(ScreenPtr pScreen)
return TRUE;
}
-void radeon_kms_update_vram_limit(ScrnInfoPtr pScrn, int new_fb_size)
+void radeon_kms_update_vram_limit(ScrnInfoPtr pScrn, uint32_t new_fb_size)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
RADEONInfoPtr info = RADEONPTR(pScrn);
- int remain_size_bytes;
+ uint64_t remain_size_bytes;
int c;
for (c = 0; c < xf86_config->num_crtc; c++) {
@@ -1615,9 +1615,13 @@ void radeon_kms_update_vram_limit(ScrnInfoPtr pScrn, int new_fb_size)
remain_size_bytes = info->vram_size - new_fb_size;
remain_size_bytes = (remain_size_bytes / 10) * 9;
- radeon_cs_set_limit(info->cs, RADEON_GEM_DOMAIN_VRAM, remain_size_bytes);
+ if (remain_size_bytes > 0xffffffff)
+ remain_size_bytes = 0xffffffff;
+ radeon_cs_set_limit(info->cs, RADEON_GEM_DOMAIN_VRAM,
+ (uint32_t)remain_size_bytes);
- xf86DrvMsg(pScrn->scrnIndex, X_INFO, "VRAM usage limit set to %dK\n", remain_size_bytes / 1024);
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO, "VRAM usage limit set to %uK\n",
+ (uint32_t)remain_size_bytes / 1024);
}
/* Used to disallow modes that are not supported by the hardware */