diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2488-drm-amd-display-Remove-additional-FEC-link-bandwidth.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2488-drm-amd-display-Remove-additional-FEC-link-bandwidth.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2488-drm-amd-display-Remove-additional-FEC-link-bandwidth.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2488-drm-amd-display-Remove-additional-FEC-link-bandwidth.patch new file mode 100644 index 00000000..8d646c83 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2488-drm-amd-display-Remove-additional-FEC-link-bandwidth.patch @@ -0,0 +1,51 @@ +From a0a07ba5b0d225cc6b78246dd20eb9d36cb52f56 Mon Sep 17 00:00:00 2001 +From: Nikola Cornij <nikola.cornij@amd.com> +Date: Wed, 27 Mar 2019 18:54:19 -0400 +Subject: [PATCH 2488/2940] drm/amd/display: Remove additional FEC link + bandwidth reduction + +[why] +This is now done in the original link bandwidth calculation and DSC +must not do this anymore. + +[how] +Remove the line of code that should have been removed when transition +to correctly applying FEC overhead was made. + +Signed-off-by: Nikola Cornij <nikola.cornij@amd.com> +Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 5 ++--- + 1 file changed, 2 insertions(+), 3 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +index e71197d35d79..471eb9873885 100644 +--- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c ++++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +@@ -311,19 +311,18 @@ static void get_dsc_bandwidth_range( + * + * Returns: + * - 'true' if DSC was required by policy and was successfully applied +- * - 'false' if DSC was not necessary (e.g. if uncompressed stream fits 'target_bandwidth'), ++ * - 'false' if DSC was not necessary (e.g. if uncompressed stream fits 'target_bandwidth_kbps'), + * or if it couldn't be applied based on DSC policy. + */ + static bool decide_dsc_target_bpp_x16( + const struct dc_dsc_policy *policy, + const struct dsc_enc_caps *dsc_common_caps, +- const int target_bandwidth, ++ const int target_bandwidth_kbps, + const struct dc_crtc_timing *timing, + int *target_bpp_x16) + { + bool should_use_dsc = false; + struct dc_dsc_bw_range range; +- float target_bandwidth_kbps = target_bandwidth * 0.97f; // 3% overhead for FEC + + memset(&range, 0, sizeof(range)); + +-- +2.17.1 + |