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| author | kib <kib@FreeBSD.org> | 2017-04-27 12:15:15 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2017-04-27 12:15:15 +0000 |
| commit | 38c7b2c97edf2139f912392350530a9ffae89d8d (patch) | |
| tree | 55c3e82f62972586d449fe6b90bb61a91c783c2e | |
| parent | eae5c4881723780e3c97cd05ec06fe55bc8f0c45 (diff) | |
| download | FreeBSD-src-38c7b2c97edf2139f912392350530a9ffae89d8d.zip FreeBSD-src-38c7b2c97edf2139f912392350530a9ffae89d8d.tar.gz | |
MFC r317196:
Write-combine framebuffer writes through user-space mappings, if possible.
| -rw-r--r-- | sys/dev/fb/vesa.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/dev/fb/vesa.c b/sys/dev/fb/vesa.c index bd4b261..a0cd0ca 100644 --- a/sys/dev/fb/vesa.c +++ b/sys/dev/fb/vesa.c @@ -1636,6 +1636,9 @@ vesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, if (offset > adp->va_window_size - PAGE_SIZE) return (-1); *paddr = adp->va_info.vi_buffer + offset; +#ifdef VM_MEMATTR_WRITE_COMBINING + *memattr = VM_MEMATTR_WRITE_COMBINING; +#endif return (0); } return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr)); |
