diff options
| author |   Jun Lei <Jun.Lei@amd.com> | 2018-10-23 12:12:50 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-11-19 15:27:36 -0500 |
| commit | eb6b29d62841ec38665840af4c443fbef85bf2ec (patch) | |
| tree | 4977b94f734c2a3fbdc7ef656c770ef9575b092f /drivers/gpu/drm/amd/display/dc/inc | |
| parent | drm/amd/display: expose dentist_get_divider_from_did (diff) | |
| download | linux-dev-eb6b29d62841ec38665840af4c443fbef85bf2ec.tar.xz linux-dev-eb6b29d62841ec38665840af4c443fbef85bf2ec.zip | |
drm/amd/display: make underflow status clear explicit
[why]
HUBP underflow is never cleared, which causes underflow in one
test to fail another test, violating the independence requirements
[how]
Rather than make clearing implicit, we explicitly clear underflow
status in DTN.
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h index 334c48cdafdc..8f4f40646b4d 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h @@ -121,6 +121,7 @@ struct hubp_funcs { void (*hubp_clk_cntl)(struct hubp *hubp, bool enable); void (*hubp_vtg_sel)(struct hubp *hubp, uint32_t otg_inst); void (*hubp_read_state)(struct hubp *hubp); + void (*hubp_clear_underflow)(struct hubp *hubp); void (*hubp_disable_control)(struct hubp *hubp, bool disable_hubp); unsigned int (*hubp_get_underflow_status)(struct hubp *hubp); diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h index e9b702ce02dd..d6a85f48b6d1 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h @@ -200,6 +200,7 @@ struct hw_sequencer_funcs { void (*log_hw_state)(struct dc *dc, struct dc_log_buffer_ctx *log_ctx); void (*get_hw_state)(struct dc *dc, char *pBuf, unsigned int bufSize, unsigned int mask); + void (*clear_status_bits)(struct dc *dc, unsigned int mask); void (*wait_for_mpcc_disconnect)(struct dc *dc, struct resource_pool *res_pool, |