diff options
| author | José Roberto de Souza <jose.souza@intel.com> | 2021-06-16 13:31:54 -0700 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2021-06-24 16:01:41 -0700 |
| commit | 061093d75ae36ba0156eb3b3b1f9cc2e35e9351d (patch) | |
| tree | 03f26d5c1333251d9c44251e13f9532b912458a9 /drivers/gpu/drm/i915 | |
| parent | 0e20b769c4b3347b68c7c388ce5b758dcc7d141a (diff) | |
drm/i915/display/adl_p: Implement Wa_22012278275
The PSR2_CTL io buffer wake and fast wake values do not match
expected in pre production hardware, so here adding a table that
matches with HW to program it with values that HW expect.
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@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/20210616203158.118111-2-jose.souza@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 6 |
2 files changed, 32 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index fde30f937504..c8d56387d923 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -542,7 +542,34 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp) val |= EDP_PSR2_FRAME_BEFORE_SU(intel_dp->psr.sink_sync_latency + 1); val |= intel_psr2_get_tp_time(intel_dp); - if (DISPLAY_VER(dev_priv) >= 12) { + /* Wa_22012278275:adlp */ + if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_D1)) { + static const u8 map[] = { + 2, /* 5 lines */ + 1, /* 6 lines */ + 0, /* 7 lines */ + 3, /* 8 lines */ + 6, /* 9 lines */ + 5, /* 10 lines */ + 4, /* 11 lines */ + 7, /* 12 lines */ + }; + /* + * Still using the default IO_BUFFER_WAKE and FAST_WAKE, see + * comments bellow for more information + */ + u32 tmp, lines = 7; + + val |= TGL_EDP_PSR2_BLOCK_COUNT_NUM_2; + + tmp = map[lines - TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES]; + tmp = tmp << TGL_EDP_PSR2_IO_BUFFER_WAKE_SHIFT; + val |= tmp; + + tmp = map[lines - TGL_EDP_PSR2_FAST_WAKE_MIN_LINES]; + tmp = tmp << TGL_EDP_PSR2_FAST_WAKE_MIN_SHIFT; + val |= tmp; + } else if (DISPLAY_VER(dev_priv) >= 12) { /* * TODO: 7 lines of IO_BUFFER_WAKE and FAST_WAKE are default * values from BSpec. In order to setting an optimal power diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 61fdd61b33b3..c7fd4ab261c2 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4584,13 +4584,15 @@ enum { #define EDP_PSR2_IO_BUFFER_WAKE(lines) ((EDP_PSR2_IO_BUFFER_WAKE_MAX_LINES - (lines)) << 13) #define EDP_PSR2_IO_BUFFER_WAKE_MASK (3 << 13) #define TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES 5 -#define TGL_EDP_PSR2_IO_BUFFER_WAKE(lines) (((lines) - TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES) << 13) +#define TGL_EDP_PSR2_IO_BUFFER_WAKE_SHIFT 13 +#define TGL_EDP_PSR2_IO_BUFFER_WAKE(lines) (((lines) - TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES) << TGL_EDP_PSR2_IO_BUFFER_WAKE_SHIFT) #define TGL_EDP_PSR2_IO_BUFFER_WAKE_MASK (7 << 13) #define EDP_PSR2_FAST_WAKE_MAX_LINES 8 #define EDP_PSR2_FAST_WAKE(lines) ((EDP_PSR2_FAST_WAKE_MAX_LINES - (lines)) << 11) #define EDP_PSR2_FAST_WAKE_MASK (3 << 11) #define TGL_EDP_PSR2_FAST_WAKE_MIN_LINES 5 -#define TGL_EDP_PSR2_FAST_WAKE(lines) (((lines) - TGL_EDP_PSR2_FAST_WAKE_MIN_LINES) << 10) +#define TGL_EDP_PSR2_FAST_WAKE_MIN_SHIFT 10 +#define TGL_EDP_PSR2_FAST_WAKE(lines) (((lines) - TGL_EDP_PSR2_FAST_WAKE_MIN_LINES) << TGL_EDP_PSR2_FAST_WAKE_MIN_SHIFT) #define TGL_EDP_PSR2_FAST_WAKE_MASK (7 << 10) #define EDP_PSR2_TP2_TIME_500us (0 << 8) #define EDP_PSR2_TP2_TIME_100us (1 << 8) |