diff options
| author | José Roberto de Souza <jose.souza@intel.com> | 2021-06-16 13:31:55 -0700 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2021-06-24 16:01:42 -0700 |
| commit | 1d53ccdc400c872265489708de6b2342e8698d1e (patch) | |
| tree | 46f20610744125044cf9e7421519e12c5b63980c /drivers/gpu/drm/i915 | |
| parent | 061093d75ae36ba0156eb3b3b1f9cc2e35e9351d (diff) | |
| download | linux-1d53ccdc400c872265489708de6b2342e8698d1e.tar.bz2 | |
drm/i915/display/adl_p: Implement Wa_16011168373
Another WA that is required for PSR2.
BSpec: 54369
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210616203158.118111-3-jose.souza@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 8 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index c8d56387d923..e508816911fa 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1112,6 +1112,14 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp) intel_de_rmw(dev_priv, CHICKEN_PAR1_1, IGNORE_PSR2_HW_TRACKING, intel_dp->psr.psr2_sel_fetch_enabled ? IGNORE_PSR2_HW_TRACKING : 0); + + /* Wa_16011168373:adlp */ + if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_A0) && + intel_dp->psr.psr2_enabled) + intel_de_rmw(dev_priv, + TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder), + TRANS_SET_CONTEXT_LATENCY_MASK, + TRANS_SET_CONTEXT_LATENCY_VALUE(1)); } static bool psr_interrupt_error_check(struct intel_dp *intel_dp) @@ -1289,6 +1297,13 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp) intel_de_rmw(dev_priv, CHICKEN_PAR1_1, DIS_RAM_BYPASS_PSR2_MAN_TRACK, 0); + /* Wa_16011168373:adlp */ + if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_A0) && + intel_dp->psr.psr2_enabled) + intel_de_rmw(dev_priv, + TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder), + TRANS_SET_CONTEXT_LATENCY_MASK, 0); + /* Disable PSR on Sink */ drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, 0); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c7fd4ab261c2..a22c20444bca 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -10356,6 +10356,14 @@ enum skl_power_gate { #define TRANS_MSA_MISC(tran) _MMIO_TRANS2(tran, _TRANSA_MSA_MISC) /* See DP_MSA_MISC_* for the bit definitions */ +#define _TRANS_A_SET_CONTEXT_LATENCY 0x6007C +#define _TRANS_B_SET_CONTEXT_LATENCY 0x6107C +#define _TRANS_C_SET_CONTEXT_LATENCY 0x6207C +#define _TRANS_D_SET_CONTEXT_LATENCY 0x6307C +#define TRANS_SET_CONTEXT_LATENCY(tran) _MMIO_TRANS2(tran, _TRANS_A_SET_CONTEXT_LATENCY) +#define TRANS_SET_CONTEXT_LATENCY_MASK REG_GENMASK(15, 0) +#define TRANS_SET_CONTEXT_LATENCY_VALUE(x) REG_FIELD_PREP(TRANS_SET_CONTEXT_LATENCY_MASK, (x)) + /* LCPLL Control */ #define LCPLL_CTL _MMIO(0x130040) #define LCPLL_PLL_DISABLE (1 << 31) |