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drm/amd/display: fix re-enabling stutter for raven

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We were overwriting the whole register which was re-enabling
stutter for raven. Now we are reading the register then setting
the values only for pstate.

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bhawanpreet Lakha 2017-10-02 12:00:24 -04:00 committed by Alex Deucher
parent f6cb588a42
commit 458e9d0387
2 changed files with 10 additions and 3 deletions
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4
drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h
View File

@ -446,6 +446,8 @@ struct dce_hwseq_registers {
HWS_SF(, DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, DCHUBBUB_ARB_WATERMARK_CHANGE_DONE_INTERRUPT_DISABLE, mask_sh), \
HWS_SF(, DCHUBBUB_ARB_DRAM_STATE_CNTL, DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_VALUE, mask_sh), \
HWS_SF(, DCHUBBUB_ARB_DRAM_STATE_CNTL, DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE, mask_sh), \
HWS_SF(, DCHUBBUB_ARB_DRAM_STATE_CNTL, DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_VALUE, mask_sh), \
HWS_SF(, DCHUBBUB_ARB_DRAM_STATE_CNTL, DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_ENABLE, mask_sh), \
HWS_SF(, DCHUBBUB_ARB_SAT_LEVEL, DCHUBBUB_ARB_SAT_LEVEL, mask_sh), \
HWS_SF(, DCHUBBUB_ARB_DF_REQ_OUTSTAND, DCHUBBUB_ARB_MIN_REQ_OUTSTAND, mask_sh), \
HWS_SF(, DCFCLK_CNTL, DCFCLK_GATE_DIS, mask_sh)
@ -554,6 +556,8 @@ struct dce_hwseq_registers {
type DCHUBBUB_ARB_WATERMARK_CHANGE_DONE_INTERRUPT_DISABLE;\
type DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_VALUE;\
type DCHUBBUB_ARB_ALLOW_SELF_REFRESH_FORCE_ENABLE;\
type DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_VALUE;\
type DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_ENABLE;\
type DCHUBBUB_ARB_SAT_LEVEL;\
type DCHUBBUB_ARB_MIN_REQ_OUTSTAND;\
type OPP_PIPE_CLOCK_EN;\

9
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
View File

@ -253,7 +253,6 @@ static void verify_allow_pstate_change_high(
unsigned int debug_index = 0x7;
unsigned int debug_data;
unsigned int force_allow_pstate = 0x30;
unsigned int i;
if (forced_pstate_allow) {
@ -261,7 +260,9 @@ static void verify_allow_pstate_change_high(
* we verify_allow_pstate_change_high. so disable force
* here so we can check status
*/
REG_WRITE(DCHUBBUB_ARB_DRAM_STATE_CNTL, 0);
REG_UPDATE_2(DCHUBBUB_ARB_DRAM_STATE_CNTL,
DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_VALUE, 0,
DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_ENABLE, 0);
forced_pstate_allow = false;
}
@ -304,7 +305,9 @@ static void verify_allow_pstate_change_high(
/* force pstate allow to prevent system hang
* and break to debugger to investigate
*/
REG_WRITE(DCHUBBUB_ARB_DRAM_STATE_CNTL, force_allow_pstate);
REG_UPDATE_2(DCHUBBUB_ARB_DRAM_STATE_CNTL,
DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_VALUE, 1,
DCHUBBUB_ARB_ALLOW_PSTATE_CHANGE_FORCE_ENABLE, 1);
forced_pstate_allow = true;
if (should_log_hw_state) {