From 4ca04f31122cacce249e98ed8985964bcb0d91e9 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Bruno=20Jim=C3=A9nez?= Date: Mon, 7 Jul 2014 17:50:05 +0200 Subject: [PATCH] r600g/compute: Try to use a temporary resource when growing the pool Now, before moving everything to host memory, we try to create a new resource to use as a pool. I we succeed we just use this resource and delete the previous one. If we fail we fallback to using the shadow. This should make growing the pool faster, and we can also save 64KB of memory that were allocated for the 'shadow', even if they weren't used. Reviewed-by: Tom Stellard --- .../drivers/r600/compute_memory_pool.c | 61 +++++++++++++------ 1 file changed, 43 insertions(+), 18 deletions(-) diff --git a/src/gallium/drivers/r600/compute_memory_pool.c b/src/gallium/drivers/r600/compute_memory_pool.c index a66ead5676f..dbf6682c68f 100644 --- a/src/gallium/drivers/r600/compute_memory_pool.c +++ b/src/gallium/drivers/r600/compute_memory_pool.c @@ -73,10 +73,6 @@ static void compute_memory_pool_init(struct compute_memory_pool * pool, COMPUTE_DBG(pool->screen, "* compute_memory_pool_init() initial_size_in_dw = %ld\n", initial_size_in_dw); - pool->shadow = (uint32_t*)CALLOC(initial_size_in_dw, 4); - if (pool->shadow == NULL) - return; - pool->size_in_dw = initial_size_in_dw; pool->bo = (struct r600_resource*)r600_compute_buffer_alloc_vram(pool->screen, pool->size_in_dw * 4); @@ -184,27 +180,56 @@ int compute_memory_grow_pool(struct compute_memory_pool* pool, if (!pool->bo) { compute_memory_pool_init(pool, MAX2(new_size_in_dw, 1024 * 16)); - if (pool->shadow == NULL) - return -1; } else { + struct r600_resource *temp = NULL; + new_size_in_dw = align(new_size_in_dw, ITEM_ALIGNMENT); COMPUTE_DBG(pool->screen, " Aligned size = %d (%d bytes)\n", new_size_in_dw, new_size_in_dw * 4); - compute_memory_shadow(pool, pipe, 1); - pool->shadow = realloc(pool->shadow, new_size_in_dw*4); - if (pool->shadow == NULL) - return -1; + temp = (struct r600_resource *)r600_compute_buffer_alloc_vram( + pool->screen, new_size_in_dw * 4); - pool->size_in_dw = new_size_in_dw; - pool->screen->b.b.resource_destroy( - (struct pipe_screen *)pool->screen, - (struct pipe_resource *)pool->bo); - pool->bo = (struct r600_resource*)r600_compute_buffer_alloc_vram( - pool->screen, - pool->size_in_dw * 4); - compute_memory_shadow(pool, pipe, 0); + if (temp != NULL) { + struct r600_context *rctx = (struct r600_context *)pipe; + struct pipe_resource *src = (struct pipe_resource *)pool->bo; + struct pipe_resource *dst = (struct pipe_resource *)temp; + struct pipe_box box; + + COMPUTE_DBG(pool->screen, " Growing the pool using a temporary resource\n"); + + u_box_1d(0, pool->size_in_dw * 4, &box); + + rctx->b.b.resource_copy_region(pipe, + dst, 0, 0, 0 ,0, + src, 0, &box); + + pool->screen->b.b.resource_destroy( + (struct pipe_screen *)pool->screen, + src); + + pool->bo = temp; + pool->size_in_dw = new_size_in_dw; + } + else { + COMPUTE_DBG(pool->screen, " The creation of the temporary resource failed\n" + " Falling back to using 'shadow'\n"); + + compute_memory_shadow(pool, pipe, 1); + pool->shadow = realloc(pool->shadow, new_size_in_dw * 4); + if (pool->shadow == NULL) + return -1; + + pool->size_in_dw = new_size_in_dw; + pool->screen->b.b.resource_destroy( + (struct pipe_screen *)pool->screen, + (struct pipe_resource *)pool->bo); + pool->bo = (struct r600_resource*)r600_compute_buffer_alloc_vram( + pool->screen, + pool->size_in_dw * 4); + compute_memory_shadow(pool, pipe, 0); + } } return 0; -- 2.30.2