Author: kib
Date: Thu Apr 27 12:15:15 2017
New Revision: 317501
URL: https://svnweb.freebsd.org/changeset/base/317501
Log:
MFC r317196:
Write-combine framebuffer writes through user-space mappings, if possible.
Modified:
stable/10/sys/dev/fb/vesa.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/dev/fb/vesa.c
==============================================================================
--- stable/10/sys/dev/fb/vesa.c Thu Apr 27 12:12:33 2017 (r317500)
+++ stable/10/sys/dev/fb/vesa.c Thu Apr 27 12:15:15 2017 (r317501)
@@ -1636,6 +1636,9 @@ vesa_mmap(video_adapter_t *adp, vm_ooffs
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));
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