diff options
| author | Matt Roper <matthew.d.roper@intel.com> | 2021-07-22 01:30:41 +0300 |
|---|---|---|
| committer | Matt Roper <matthew.d.roper@intel.com> | 2021-07-22 19:31:26 +0300 |
| commit | 47753748ad05f662e54c15a3088d783e5f4772f2 (patch) | |
| tree | 9281500b56ab615dd173de1901a3afb62718fb0c | |
| parent | 49f756342b818fccb576c7b6ff00af7b32778e7d (diff) | |
| download | linux-47753748ad05f662e54c15a3088d783e5f4772f2.tar.xz | |
drm/i915/dg2: Don't program BW_BUDDY registers
Although the BW_BUDDY registers still exist, they are not used for
anything on DG2. This change is expected to hold true for future dgpu's
too.
Bspec: 49218
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210721223043.834562-17-matthew.d.roper@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 4732efbb02f9..81efc77bada0 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -5814,6 +5814,10 @@ static void tgl_bw_buddy_init(struct drm_i915_private *dev_priv) unsigned long abox_mask = INTEL_INFO(dev_priv)->abox_mask; int config, i; + /* BW_BUDDY registers are not used on dgpu's beyond DG1 */ + if (IS_DGFX(dev_priv) && !IS_DG1(dev_priv)) + return; + if (IS_ALDERLAKE_S(dev_priv) || IS_DG1_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) || IS_RKL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) || |