drm/amd/display: Force full update in gpu reset

commit 67fe574651c73fe5cc176e35f28f2ec1ba498d14 upstream.

[Why]
While system undergoing gpu reset always do full update
to sync the dc state before and after reset.

[How]
Return true in should_reset_plane() if gpu reset detected

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2ba8619b9a378ad218ad6c2e2ccaee8f531e08de)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 5c865afdf8aaac8ad79e9ddcde0c807e90a19342..7dee02e8ba6fa8f1e56111fca1a3543b202b1ec9 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9358,6 +9358,9 @@ static bool should_reset_plane(struct drm_atomic_state *state,
        if (adev->ip_versions[DCE_HWIP][0] < IP_VERSION(3, 2, 0) && state->allow_modeset)
                return true;
 
+       if (amdgpu_in_reset(adev) && state->allow_modeset)
+               return true;
+
        /* Exit early if we know that we're adding or removing the plane. */
        if (old_plane_state->crtc != new_plane_state->crtc)
                return true;