diff options
| author |   Oliver Logush <oliver.logush@amd.com> | 2022-03-22 10:26:19 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-04-12 14:18:18 -0400 |
| commit | c1b972a18d05d007f0ddff31db2ff50790576e92 (patch) | |
| tree | 125bb45257432447d6d928b0dd2f961437c7f8a0 /drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c | |
| parent | drm/amd/display: Power down hardware if timer not trigger (diff) | |
| download | linux-c1b972a18d05d007f0ddff31db2ff50790576e92.tar.xz linux-c1b972a18d05d007f0ddff31db2ff50790576e92.zip | |
drm/amd/display: Insert pulling smu busy status before sending another request
[why]
Make sure smu is not busy before sending another request, this is to
prevent stress failures from MS.
[how]
Check to make sure the SMU fw busy signal is cleared before sending
another request
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Oliver Logush <oliver.logush@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c index 8161a6ae410d..30c6f9cd717f 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c @@ -94,6 +94,9 @@ static int rn_vbios_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr, { uint32_t result; + result = rn_smu_wait_for_response(clk_mgr, 10, 200000); + ASSERT(result == VBIOSSMC_Result_OK); + /* First clear response register */ REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Status_BUSY); |