diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffer_objects.c | 73 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffer_objects.h | 1 |
2 files changed, 59 insertions, 15 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.c b/src/mesa/drivers/dri/intel/intel_buffer_objects.c index b8a0363b747..ae6f3064a87 100644 --- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c +++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c @@ -344,19 +344,24 @@ intel_bufferobj_map_range(GLcontext * ctx, */ if ((access & GL_MAP_INVALIDATE_RANGE_BIT) && drm_intel_bo_busy(intel_obj->buffer)) { - intel_obj->range_map_bo = drm_intel_bo_alloc(intel->bufmgr, - "range map", - length, 64); - if (!(access & GL_MAP_READ_BIT) && - intel->intelScreen->kernel_exec_fencing) { - drm_intel_gem_bo_map_gtt(intel_obj->range_map_bo); - intel_obj->mapped_gtt = GL_TRUE; + if (access & GL_MAP_FLUSH_EXPLICIT_BIT) { + intel_obj->range_map_buffer = _mesa_malloc(length); + obj->Pointer = intel_obj->range_map_buffer; } else { - drm_intel_bo_map(intel_obj->range_map_bo, - (access & GL_MAP_WRITE_BIT) != 0); - intel_obj->mapped_gtt = GL_FALSE; + intel_obj->range_map_bo = drm_intel_bo_alloc(intel->bufmgr, + "range map", + length, 64); + if (!(access & GL_MAP_READ_BIT) && + intel->intelScreen->kernel_exec_fencing) { + drm_intel_gem_bo_map_gtt(intel_obj->range_map_bo); + intel_obj->mapped_gtt = GL_TRUE; + } else { + drm_intel_bo_map(intel_obj->range_map_bo, + (access & GL_MAP_WRITE_BIT) != 0); + intel_obj->mapped_gtt = GL_FALSE; + } + obj->Pointer = intel_obj->range_map_bo->virtual; } - obj->Pointer = intel_obj->range_map_bo->virtual; return obj->Pointer; } @@ -373,6 +378,38 @@ intel_bufferobj_map_range(GLcontext * ctx, return obj->Pointer; } +/* Ideally we'd use a BO to avoid taking up cache space for the temporary + * data, but FlushMappedBufferRange may be followed by further writes to + * the pointer, so we would have to re-map after emitting our blit, which + * would defeat the point. + */ +static void +intel_bufferobj_flush_mapped_range(GLcontext *ctx, GLenum target, + GLintptr offset, GLsizeiptr length, + struct gl_buffer_object *obj) +{ + struct intel_context *intel = intel_context(ctx); + struct intel_buffer_object *intel_obj = intel_buffer_object(obj); + drm_intel_bo *temp_bo; + + /* Unless we're in the range map using a temporary system buffer, + * there's no work to do. + */ + if (intel_obj->range_map_buffer == NULL) + return; + + temp_bo = drm_intel_bo_alloc(intel->bufmgr, "range map flush", length, 64); + + drm_intel_bo_subdata(temp_bo, 0, length, intel_obj->range_map_buffer); + + intel_emit_linear_blit(intel, + intel_obj->buffer, obj->Offset + offset, + temp_bo, 0, + length); + + drm_intel_bo_unreference(temp_bo); +} + /** * Called via glUnmapBuffer(). @@ -388,6 +425,15 @@ intel_bufferobj_unmap(GLcontext * ctx, assert(obj->Pointer); if (intel_obj->sys_buffer != NULL) { /* always keep the mapping around. */ + } else if (intel_obj->range_map_buffer != NULL) { + /* Since we've emitted some blits to buffers that will (likely) be used + * in rendering operations in other cache domains in this batch, emit a + * flush. Once again, we wish for a domain tracker in libdrm to cover + * usage inside of a batchbuffer. + */ + intel_batchbuffer_emit_mi_flush(intel->batch); + free(intel_obj->range_map_buffer); + intel_obj->range_map_buffer = NULL; } else if (intel_obj->range_map_bo != NULL) { if (intel_obj->mapped_gtt) { drm_intel_gem_bo_unmap_gtt(intel_obj->range_map_bo); @@ -395,10 +441,6 @@ intel_bufferobj_unmap(GLcontext * ctx, drm_intel_bo_unmap(intel_obj->range_map_bo); } - /* We ignore the FLUSH_EXPLICIT bit and the calls associated with it. - * It would be a small win to support that, but for now we just copy - * the whole mapped range into place. - */ intel_emit_linear_blit(intel, intel_obj->buffer, obj->Offset, intel_obj->range_map_bo, 0, @@ -528,6 +570,7 @@ intelInitBufferObjectFuncs(struct dd_function_table *functions) functions->GetBufferSubData = intel_bufferobj_get_subdata; functions->MapBuffer = intel_bufferobj_map; functions->MapBufferRange = intel_bufferobj_map_range; + functions->FlushMappedBufferRange = intel_bufferobj_flush_mapped_range; functions->UnmapBuffer = intel_bufferobj_unmap; functions->CopyBufferSubData = intel_bufferobj_copy_subdata; } diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.h b/src/mesa/drivers/dri/intel/intel_buffer_objects.h index 06a8ab9824c..bf3e08a3201 100644 --- a/src/mesa/drivers/dri/intel/intel_buffer_objects.h +++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.h @@ -50,6 +50,7 @@ struct intel_buffer_object buffer object? */ drm_intel_bo *range_map_bo; + void *range_map_buffer; unsigned int range_map_offset; GLsizei range_map_size; |