diff options
| author | Marc Aurele La France <tsi@xfree86.org> | 2006-07-29 01:00:56 +0300 |
|---|---|---|
| committer | George Sapountzis <gsap7@yahoo.gr> | 2006-07-29 01:00:56 +0300 |
| commit | 7800407a2db4b7307192bf3b43fffb9c4748b9c0 (patch) | |
| tree | 97c90ce49f10f520f1d76672fded9e31578d417d /src/atimach64.c | |
| parent | 49b11c540d37152eee4907ab30353ede01e4fb56 (diff) | |
Bug #807: invalidate read-back cache.
Fix corruption when scaling 1-pixel wide pixmaps, in which case the first CPU
read of the framebuffer will return stale data.
This bug always manifests itself in mach64 EXA (to be committed soon), with
this patch mach64 EXA passes rendercheck.
Diffstat (limited to 'src/atimach64.c')
| -rw-r--r-- | src/atimach64.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/atimach64.c b/src/atimach64.c index 166aaf0c..2cdec787 100644 --- a/src/atimach64.c +++ b/src/atimach64.c @@ -183,6 +183,7 @@ ATIMach64PreInit if (pATI->Chip >= ATI_CHIP_264VTB) { + pATIHW->mem_buf_cntl = inr(MEM_BUF_CNTL) | INVALIDATE_RB_CACHE; pATIHW->mem_cntl = (pATI->LockData.mem_cntl & ~(CTL_MEM_LOWER_APER_ENDIAN | CTL_MEM_UPPER_APER_ENDIAN)) | SetBits(CTL_MEM_APER_BYTE_ENDIAN, CTL_MEM_LOWER_APER_ENDIAN); @@ -424,6 +425,7 @@ ATIMach64Save if (pATI->Chip >= ATI_CHIP_264VTB) { + pATIHW->mem_buf_cntl = inr(MEM_BUF_CNTL) | INVALIDATE_RB_CACHE; pATIHW->mem_cntl = inr(MEM_CNTL); pATIHW->mpp_config = inr(MPP_CONFIG); pATIHW->mpp_strobe_seq = inr(MPP_STROBE_SEQ); @@ -1057,6 +1059,7 @@ ATIMach64Set if (pATI->Chip >= ATI_CHIP_264VTB) { + outr(MEM_BUF_CNTL, pATIHW->mem_buf_cntl); outr(MEM_CNTL, pATIHW->mem_cntl); outr(MPP_CONFIG, pATIHW->mpp_config); outr(MPP_STROBE_SEQ, pATIHW->mpp_strobe_seq); |