From: Mario Limonciello Date: Thu, 14 Dec 2023 21:07:32 +0000 (-0600) Subject: drm/amd/display: Add a new DC debug mask for PSR-SU X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4e08378b2dc1fbe64c9e1730f3260672b22fac03;p=linux.git drm/amd/display: Add a new DC debug mask for PSR-SU Some issues have been raised that appear to be tied to PSR-SU. To allow users to confirm they're tied to PSR-SU without turning off PSR entirely introduce a new debug mask: amdgpu.dcdebugmask=0x200 Reviewed-by: Harry Wentland Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c index 08ce3bb8f640d..1f08c6564c3bf 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c @@ -51,6 +51,9 @@ static bool link_supports_psrsu(struct dc_link *link) !link->dpcd_caps.psr_info.psr2_su_y_granularity_cap) return false; + if (amdgpu_dc_debug_mask & DC_DISABLE_PSR_SU) + return false; + return dc_dmub_check_min_version(dc->ctx->dmub_srv->dmub); } diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h index bf7f258c324a1..c739f12fb937d 100644 --- a/drivers/gpu/drm/amd/include/amd_shared.h +++ b/drivers/gpu/drm/amd/include/amd_shared.h @@ -258,6 +258,7 @@ enum DC_DEBUG_MASK { DC_DISABLE_REPLAY = 0x50, DC_ENABLE_DPIA_TRACE = 0x80, DC_ENABLE_DML2 = 0x100, + DC_DISABLE_PSR_SU = 0x200, }; enum amd_dpm_forced_level;