From 0500404cdff44c6a278c2738d32b9e45cb9a5572 Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Wed, 5 Aug 2009 19:22:34 +0100 Subject: i915g: Treat primary textures as scanout buffers --- src/gallium/winsys/drm/intel/gem/intel_be_device.c | 42 +++++++++++++++++++--- 1 file changed, 37 insertions(+), 5 deletions(-) (limited to 'src/gallium/winsys/drm/intel/gem/intel_be_device.c') diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_device.c b/src/gallium/winsys/drm/intel/gem/intel_be_device.c index e3630f5d12..c7e88271ec 100644 --- a/src/gallium/winsys/drm/intel/gem/intel_be_device.c +++ b/src/gallium/winsys/drm/intel/gem/intel_be_device.c @@ -16,6 +16,8 @@ #include "intel_be_api.h" #include +#define I915_TILING_X 1 + /* * Buffer */ @@ -25,9 +27,10 @@ intel_be_buffer_map(struct pipe_winsys *winsys, struct pipe_buffer *buf, unsigned flags) { + struct intel_be_buffer *buffer = intel_be_buffer(buf); drm_intel_bo *bo = intel_bo(buf); int write = 0; - int ret; + int ret = 0; if (flags & PIPE_BUFFER_USAGE_DONTBLOCK) { /* Remove this when drm_intel_bo_map supports DONTBLOCK @@ -38,19 +41,37 @@ intel_be_buffer_map(struct pipe_winsys *winsys, if (flags & PIPE_BUFFER_USAGE_CPU_WRITE) write = 1; - ret = drm_intel_bo_map(bo, write); + if (buffer->map_count) + goto out; + + if (buffer->map_gtt) + ret = drm_intel_gem_bo_map_gtt(bo); + else + ret = drm_intel_bo_map(bo, write); + + buffer->ptr = bo->virtual; +out: if (ret) return NULL; - return bo->virtual; + buffer->map_count++; + return buffer->ptr; } static void intel_be_buffer_unmap(struct pipe_winsys *winsys, struct pipe_buffer *buf) { - drm_intel_bo_unmap(intel_bo(buf)); + struct intel_be_buffer *buffer = intel_be_buffer(buf); + + if (--buffer->map_count) + return; + + if (buffer->map_gtt) + drm_intel_gem_bo_unmap_gtt(intel_bo(buf)); + else + drm_intel_bo_unmap(intel_bo(buf)); } static void @@ -80,8 +101,13 @@ intel_be_buffer_create(struct pipe_winsys *winsys, buffer->base.size = size; buffer->flinked = FALSE; buffer->flink = 0; + buffer->map_gtt = FALSE; - if (usage & (PIPE_BUFFER_USAGE_VERTEX | PIPE_BUFFER_USAGE_CONSTANT)) { + if (usage & I915_BUFFER_USAGE_SCANOUT) { + /* Scanout buffer */ + name = "gallium3d_scanout"; + pool = dev->pools.gem; + } else if (usage & (PIPE_BUFFER_USAGE_VERTEX | PIPE_BUFFER_USAGE_CONSTANT)) { /* Local buffer */ name = "gallium3d_local"; pool = dev->pools.gem; @@ -96,6 +122,12 @@ intel_be_buffer_create(struct pipe_winsys *winsys, } buffer->bo = drm_intel_bo_alloc(pool, name, size, alignment); + if (usage & I915_BUFFER_USAGE_SCANOUT) { + unsigned tiling = I915_TILING_X; + unsigned stride = 2048 * 4; /* TODO do something smarter here */ + drm_intel_bo_set_tiling(buffer->bo, &tiling, stride); + buffer->map_gtt = TRUE; + } if (!buffer->bo) goto err; -- cgit v1.2.3