diff options
| author | José Roberto de Souza <jose.souza@intel.com> | 2020-08-10 10:41:44 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2020-08-17 16:17:18 -0400 |
| commit | a170f4f1b128128d35b732cdc799dc5824f8e2ca (patch) | |
| tree | 74a1b664ae00e6f9c53ea714256fb7d650cabcbc /drivers/gpu/drm/i915 | |
| parent | 6e43e276b8c94ecfeebfcc32eabad2ba27e90299 (diff) | |
drm/i915/display: Implement WA 1408330847
From the 3 WAs for PSR2 man track/selective fetch this is only one
needed when doing single full frames at every flip.
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200810174144.76761-2-jose.souza@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 |
2 files changed, 18 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index d30a3560b794..2b004ee9619c 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -553,13 +553,21 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp) val |= EDP_PSR2_FAST_WAKE(7); } - if (dev_priv->psr.psr2_sel_fetch_enabled) + if (dev_priv->psr.psr2_sel_fetch_enabled) { + /* WA 1408330847 */ + if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) || + IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0)) + intel_de_rmw(dev_priv, CHICKEN_PAR1_1, + DIS_RAM_BYPASS_PSR2_MAN_TRACK, + DIS_RAM_BYPASS_PSR2_MAN_TRACK); + intel_de_write(dev_priv, PSR2_MAN_TRK_CTL(dev_priv->psr.transcoder), PSR2_MAN_TRK_CTL_ENABLE); - else if (HAS_PSR2_SEL_FETCH(dev_priv)) + } else if (HAS_PSR2_SEL_FETCH(dev_priv)) { intel_de_write(dev_priv, PSR2_MAN_TRK_CTL(dev_priv->psr.transcoder), 0); + } /* * PSR2 HW is incorrectly using EDP_PSR_TP1_TP3_SEL and BSpec is @@ -1099,6 +1107,13 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp) psr_status_mask, 2000)) drm_err(&dev_priv->drm, "Timed out waiting PSR idle state\n"); + /* WA 1408330847 */ + if (dev_priv->psr.psr2_sel_fetch_enabled && + (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) || + IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0))) + intel_de_rmw(dev_priv, CHICKEN_PAR1_1, + DIS_RAM_BYPASS_PSR2_MAN_TRACK, 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 14d8c3fbcc0d..ac691927e29d 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7878,6 +7878,7 @@ enum { # define CHICKEN3_DGMG_DONE_FIX_DISABLE (1 << 2) #define CHICKEN_PAR1_1 _MMIO(0x42080) +#define DIS_RAM_BYPASS_PSR2_MAN_TRACK (1 << 16) #define SKL_DE_COMPRESSED_HASH_MODE (1 << 15) #define DPA_MASK_VBLANK_SRD (1 << 15) #define FORCE_ARB_IDLE_PLANES (1 << 14) |