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drm/i915/display/dmc: Set DC_STATE_DEBUG_MASK_CORES after firmware load

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Specification asks for DC_STATE_DEBUG_MASK_CORES to be set for all
platforms that supports DMC, not only for geminilake and broxton.

While at is also taking the oportunity to simply the code.

BSpec: 7402
BSpec: 49436
Reviewed-by: Imre Deak <imre.deak@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: 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/20210922215242.66683-1-jose.souza@intel.com
This commit is contained in:
José Roberto de Souza 2021-09-22 14:52:40 -07:00
parent 3d1adc3d64
commit 27493cb874
1 changed files with 3 additions and 13 deletions
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14
drivers/gpu/drm/i915/display/intel_dmc.c
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@ -255,20 +255,10 @@ intel_get_stepping_info(struct drm_i915_private *i915,
static void gen9_set_dc_state_debugmask(struct drm_i915_private *dev_priv)
{
u32 val, mask;
mask = DC_STATE_DEBUG_MASK_MEMORY_UP;
if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
mask |= DC_STATE_DEBUG_MASK_CORES;
/* The below bit doesn't need to be cleared ever afterwards */
val = intel_de_read(dev_priv, DC_STATE_DEBUG);
if ((val & mask) != mask) {
val |= mask;
intel_de_write(dev_priv, DC_STATE_DEBUG, val);
intel_de_rmw(dev_priv, DC_STATE_DEBUG, 0,
DC_STATE_DEBUG_MASK_CORES | DC_STATE_DEBUG_MASK_MEMORY_UP);
intel_de_posting_read(dev_priv, DC_STATE_DEBUG);
}
}
/**