Attachment 144171 Details for Bug 110602 – Fallback to non-raw mapping

[patch] Fallback to non-raw mapping

0001-i965-fallback-to-non-raw-mapping-for-miptree-aux-buf.patch (text/plain), 1.07 KB, created by Anssi Hannula on 2019-05-06 08:42:29 UTC

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Creator: Anssi Hannula

Created: 2019-05-06 08:42:29 UTC

Size: 1.07 KB

patch

obsolete

>From a3e62299d5d0c93659a511535e67d2310a6f2e69 Mon Sep 17 00:00:00 2001
>From: Anssi Hannula <anssi.hannula@bitwise.fi>
>Date: Mon, 6 May 2019 11:35:35 +0300
>Subject: [PATCH] i965: fallback to non-raw mapping for miptree aux buffer
>
>Older kernels do not support MMAP WC for MAP_RAW mappings. Fallback to
>a non-raw mapping in that case.
>
>Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
>---
> src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 2 ++
> 1 file changed, 2 insertions(+)
>
>diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
>index 426782c5883..7ba95ce4e09 100644
>--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
>+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
>@@ -1695,6 +1695,8 @@ intel_alloc_aux_buffer(struct brw_context *brw,
>       assert(!(alloc_flags & BO_ALLOC_BUSY));
> 
>       void *map = brw_bo_map(brw, buf->bo, MAP_WRITE | MAP_RAW);
>+      if (map == NULL)
>+         map = brw_bo_map(brw, buf->bo, MAP_WRITE);
>       if (map == NULL) {
>          intel_miptree_aux_buffer_free(buf);
>          return NULL;
>-- 
>2.17.2
>

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