From: Marek Olšák Date: Thu, 9 Feb 2017 11:19:21 +0000 (+0100) Subject: gallium/radeon: use staging for texture read mappings from GTT WC X-Git-Tag: upstream/17.1.0~2382 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=43a2ba1b7dee769d476a754cc3a8332f7f3b7f39;p=platform%2Fupstream%2Fmesa.git gallium/radeon: use staging for texture read mappings from GTT WC Reviewed-by: Nicolai Hähnle --- diff --git a/src/gallium/drivers/radeon/r600_texture.c b/src/gallium/drivers/radeon/r600_texture.c index 55c8e6f..5d84eb4 100644 --- a/src/gallium/drivers/radeon/r600_texture.c +++ b/src/gallium/drivers/radeon/r600_texture.c @@ -1456,8 +1456,8 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx, /* Tiled textures need to be converted into a linear texture for CPU * access. The staging texture is always linear and is placed in GART. * - * Reading from VRAM is slow, always use the staging texture in - * this case. + * Reading from VRAM or GTT WC is slow, always use the staging + * texture in this case. * * Use the staging texture for uploads if the underlying BO * is busy. @@ -1465,8 +1465,9 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx, if (!rtex->surface.is_linear) use_staging_texture = true; else if (usage & PIPE_TRANSFER_READ) - use_staging_texture = (rtex->resource.domains & - RADEON_DOMAIN_VRAM) != 0; + use_staging_texture = + rtex->resource.domains & RADEON_DOMAIN_VRAM || + rtex->resource.flags & RADEON_FLAG_GTT_WC; /* Write & linear only: */ else if (r600_rings_is_buffer_referenced(rctx, rtex->resource.buf, RADEON_USAGE_READWRITE) ||