Nicholas Kazlauskas 0eb71d3d5b drm/amd/display: Only revalidate bandwidth on medium and fast updates ... commit 6eb3cf2e06d22b2b08e6b0ab48cb9c05a8e1a107 upstream. [Why] Changes that are fast don't require updating DLG parameters making this call unnecessary. Considering this is an expensive call it should not be done on every flip. DML touches clocks, p-state support, DLG params and a few other DC internal flags and these aren't expected during fast. A hang has been reported with this change when called on every flip which suggests that modifying these fields is not recommended behavior on fast updates. [How] Guard the validation to only happen if update type isn't FAST. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1191 Fixes: a24eaa5c51255b ("drm/amd/display: Revalidate bandwidth before commiting DC updates") Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-16 16:31:22 +08:00
..
amdgpu_dm	Revert "drm/amd/display: disable dcn20 abm feature for bring up"	2021-03-16 16:30:43 +08:00
dc	drm/amd/display: Only revalidate bandwidth on medium and fast updates	2021-03-16 16:31:22 +08:00
include	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
modules	drm/amd/display: Use kfree() to free rgb_user in calculate_user_regamma_ramp()	2021-03-16 16:31:03 +08:00
Kconfig	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
Makefile	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
TODO	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00