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authorDave Airlie <airlied@redhat.com>2009-11-20 12:15:02 +1000
committerDave Airlie <airlied@itt42.(none)>2009-11-23 13:04:44 +1000
commite20af9c94982ec6487dae42c141d33cf6a7a2eb4 (patch)
tree6c933d03f4b0978751d5b6277f5ff3741f9035a3 /src/radeon_kms.c
parentdd3eab848cf352bb96c3d01fe6028d8a4a8e451e (diff)
radeon: avoid using hw pixmaps when we have little VRAM.
This patch returns NULL for pixmap creation when we are using mixed pixmaps and the pixmap has a size. The size check is necessary for the front buffer. We add a flag to force pixmap creation for certain pixmaps that need to be hw, like the DRI2 and Xv ones. Idea from Michel and workarounds from Ben Skeggs. v2: add Option "EXALowVRAM" to allow configuring this, value in MBs. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'src/radeon_kms.c')
-rw-r--r--src/radeon_kms.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/radeon_kms.c b/src/radeon_kms.c
index 5a4255f9..e624f86d 100644
--- a/src/radeon_kms.c
+++ b/src/radeon_kms.c
@@ -67,6 +67,7 @@ const OptionInfoRec RADEONOptions_KMS[] = {
{ OPTION_DRI, "DRI", OPTV_BOOLEAN, {0}, FALSE },
{ OPTION_TVSTD, "TVStandard", OPTV_STRING, {0}, FALSE },
{ OPTION_EXA_VSYNC, "EXAVSync", OPTV_BOOLEAN, {0}, FALSE },
+ { OPTION_EXA_LOW_VRAM, "EXALowVRAM", OPTV_INTEGER, {0}, FALSE },
{ -1, NULL, OPTV_NONE, {0}, FALSE }
};
@@ -450,6 +451,20 @@ Bool RADEONPreInit_KMS(ScrnInfoPtr pScrn, int flags)
(unsigned long long)mminfo.vram_visible);
}
}
+
+ info->exa_low_vram_threshhold_mb = 32;
+ if (xf86GetOptValInteger(info->Options, OPTION_EXA_LOW_VRAM,
+ &(info->exa_low_vram_threshhold_mb))) {
+ if (info->exa_low_vram_threshhold_mb < 0 ||
+ info->exa_low_vram_threshhold_mb > (info->vram_size * 1024 * 1024)) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "Illegal Low VRAM limit selected %d, total %lld\n",
+ info->exa_low_vram_threshhold_mb,
+ info->vram_size / (1024*1024));
+ info->exa_low_vram_threshhold_mb = 32;
+ }
+ }
+
RADEONSetPitch(pScrn);
/* Set display resolution */