diff options
| author | Chia-I Wu <[email protected]> | 2013-05-10 14:23:33 +0800 |
|---|---|---|
| committer | Chia-I Wu <[email protected]> | 2013-05-16 11:24:59 +0800 |
| commit | 5c9b69d259def75f365998603d68d6749209f8b0 (patch) | |
| tree | c8390c648992cbf084c6a26be888bf04038572c2 /src/gallium/winsys/intel | |
| parent | 639d0f73c137a76ae76501da4e09cdd0e33d4c37 (diff) | |
winsys/intel: test for and expose address swizzling
Without knowing whether addresses are swizzled or not, we cannot manipulate a
tiled surface in CPU.
Diffstat (limited to 'src/gallium/winsys/intel')
| -rw-r--r-- | src/gallium/winsys/intel/drm/intel_drm_winsys.c | 22 | ||||
| -rw-r--r-- | src/gallium/winsys/intel/drm/intel_winsys.h | 1 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/gallium/winsys/intel/drm/intel_drm_winsys.c b/src/gallium/winsys/intel/drm/intel_drm_winsys.c index 8c0e29270f5..1a8d0f7292f 100644 --- a/src/gallium/winsys/intel/drm/intel_drm_winsys.c +++ b/src/gallium/winsys/intel/drm/intel_drm_winsys.c @@ -585,6 +585,26 @@ get_param(struct intel_drm_winsys *drm_ws, int param, int *value) } static bool +test_address_swizzling(struct intel_drm_winsys *drm_ws) +{ + drm_intel_bo *bo; + uint32_t tiling = I915_TILING_X, swizzle; + unsigned long pitch; + + bo = drm_intel_bo_alloc_tiled(drm_ws->bufmgr, + "address swizzling test", 64, 64, 4, &tiling, &pitch, 0); + if (bo) { + drm_intel_bo_get_tiling(bo, &tiling, &swizzle); + drm_intel_bo_unreference(bo); + } + else { + swizzle = I915_BIT_6_SWIZZLE_NONE; + } + + return (swizzle != I915_BIT_6_SWIZZLE_NONE); +} + +static bool init_info(struct intel_drm_winsys *drm_ws) { struct intel_winsys_info *info = &drm_ws->info; @@ -605,6 +625,8 @@ init_info(struct intel_drm_winsys *drm_ws) get_param(drm_ws, I915_PARAM_HAS_GEN7_SOL_RESET, &val); info->has_gen7_sol_reset = val; + info->has_address_swizzling = test_address_swizzling(drm_ws); + return true; } diff --git a/src/gallium/winsys/intel/drm/intel_winsys.h b/src/gallium/winsys/intel/drm/intel_winsys.h index 37ee275d2d9..90f1b49df1a 100644 --- a/src/gallium/winsys/intel/drm/intel_winsys.h +++ b/src/gallium/winsys/intel/drm/intel_winsys.h @@ -74,6 +74,7 @@ struct intel_winsys_info { int devid; bool has_llc; bool has_gen7_sol_reset; + bool has_address_swizzling; }; /** |