Module: Mesa Branch: main Commit: 25a232238f40bf2776f224b8bc2df318b54e982e URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=25a232238f40bf2776f224b8bc2df318b54e982e
Author: Rohan Garg <[email protected]> Date: Wed Oct 11 12:30:58 2023 +0200 anv: turn off non zero fast clears for CCS_E This helps fix a performance regression on games such as F1 22 and RDR2. Turning on non zero fast clears causes additional partial resolves for these games that degrades performance. Let's turn off non zero fast clears till we can eliminate the partial resolves. Signed-off-by: Rohan Garg <[email protected]> Reviewed-by: Nanley Chery <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25863> --- src/intel/vulkan/anv_image.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/intel/vulkan/anv_image.c b/src/intel/vulkan/anv_image.c index c9e15a32ce9..37e96b3f57a 100644 --- a/src/intel/vulkan/anv_image.c +++ b/src/intel/vulkan/anv_image.c @@ -361,6 +361,15 @@ can_fast_clear_with_non_zero_color(const struct intel_device_info *devinfo, if (image->planes[plane].aux_usage == ISL_AUX_USAGE_FCV_CCS_E) return false; + /* Turning on non zero fast clears for CCS_E introduces a performance + * regression for games such as F1 22 and RDR2 by introducing additional + * partial resolves. Let's turn non zero fast clears back off till we can + * fix performance. + */ + if (image->planes[plane].aux_usage == ISL_AUX_USAGE_CCS_E && + devinfo->ver >= 12) + return false; + /* Non mutable image, we can fast clear with any color supported by HW. */ if (!(image->vk.create_flags & VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT))
