[Mesa-dev] [PATCH 2/2] i965: use sse4.1 runtime detection for miptree_map

[Matthew Atwood]

From: Matt Atwood <matthew.s.atwood at intel.com>

Previous implementation was compile time decision
---
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index b23fddf..f7185ca 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -46,6 +46,7 @@
 #include "main/texcompress_etc.h"
 #include "main/teximage.h"
 #include "main/streaming-load-memcpy.h"
+#include "x86/common_x86_asm.h"
 
 #define FILE_DEBUG_FLAG DEBUG_MIPTREE
 
@@ -1826,7 +1827,6 @@ intel_miptree_unmap_blit(struct brw_context *brw,
    intel_miptree_release(&map->mt);
 }
 
-#ifdef __SSE4_1__
 /**
  * "Map" a buffer by copying it to an untiled temporary using MOVNTDQA.
  */
@@ -1897,7 +1897,6 @@ intel_miptree_unmap_movntdqa(struct brw_context *brw,
    map->buffer = NULL;
    map->ptr = NULL;
 }
-#endif
 
 static void
 intel_miptree_map_s8(struct brw_context *brw,
@@ -2278,10 +2277,8 @@ intel_miptree_map(struct brw_context *brw,
               mt->bo->size >= brw->max_gtt_map_object_size) {
       assert(can_blit_slice(mt, level, slice));
       intel_miptree_map_blit(brw, mt, map, level, slice);
-#ifdef __SSE4_1__
-   } else if (!(mode & GL_MAP_WRITE_BIT) && !mt->compressed) {
+   } else if (!(mode & GL_MAP_WRITE_BIT) && !mt->compressed && cpu_has_sse4_1) {
       intel_miptree_map_movntdqa(brw, mt, map, level, slice);
-#endif
    } else {
       intel_miptree_map_gtt(brw, mt, map, level, slice);
    }
@@ -2318,10 +2315,8 @@ intel_miptree_unmap(struct brw_context *brw,
       intel_miptree_unmap_depthstencil(brw, mt, map, level, slice);
    } else if (map->mt) {
       intel_miptree_unmap_blit(brw, mt, map, level, slice);
-#ifdef __SSE4_1__
-   } else if (map->buffer) {
+   } else if (map->buffer && cpu_has_sse4_1) {
       intel_miptree_unmap_movntdqa(brw, mt, map, level, slice);
-#endif
    } else {
       intel_miptree_unmap_gtt(brw, mt, map, level, slice);
    }
-- 
1.8.3.2