diff options
| author | José Roberto de Souza <jose.souza@intel.com> | 2019-10-25 17:13:23 -0700 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2019-10-29 12:12:49 -0700 |
| commit | 0f9ed3b2c9ecb727d6cea803def2998e1a6e625e (patch) | |
| tree | 1c93e380a8bed20747c9433f7629a13ef5661868 | |
| parent | ee595888e1c25fb31bbc10a317a576311356babd (diff) | |
| download | linux-0f9ed3b2c9ecb727d6cea803def2998e1a6e625e.tar.bz2 | |
drm/i915/display/cnl+: Handle fused off DSC
DSC could be fused off, so not all GEN10+ platforms will support it.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191026001323.216052-5-jose.souza@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_pci.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_device_info.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_device_info.h | 1 |
5 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 521ce23f38ac..c24c6d3e4ab5 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1888,6 +1888,9 @@ static bool intel_dp_source_supports_dsc(struct intel_dp *intel_dp, { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); + if (!INTEL_INFO(dev_priv)->display.has_dsc) + return false; + /* On TGL, DSC is supported on all Pipes */ if (INTEL_GEN(dev_priv) >= 12) return true; diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 430da2d4082a..1bb701d32a5d 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -737,6 +737,7 @@ static const struct intel_device_info intel_coffeelake_gt3_info = { GEN9_FEATURES, \ GEN(10), \ .ddb_size = 1024, \ + .display.has_dsc = 1, \ .has_coherent_ggtt = false, \ GLK_COLORS diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 32a5371fff4f..5894e46ef68b 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7755,6 +7755,7 @@ enum { #define SKL_DFSM_PIPE_B_DISABLE (1 << 21) #define SKL_DFSM_PIPE_C_DISABLE (1 << 28) #define TGL_DFSM_PIPE_D_DISABLE (1 << 22) +#define CNL_DFSM_DISPLAY_DSC_DISABLE (1 << 7) #define SKL_DSSM _MMIO(0x51004) #define CNL_DSSM_CDCLK_PLL_REFCLK_24MHz (1 << 31) diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index fa6464879142..a5b571364cf6 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -990,6 +990,10 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv) if (INTEL_GEN(dev_priv) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE)) info->display.has_csr = 0; + + if (INTEL_GEN(dev_priv) >= 10 && + (dfsm & CNL_DFSM_DISPLAY_DSC_DISABLE)) + info->display.has_dsc = 0; } /* Initialize slice/subslice/EU info */ diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h index 64e4f1923c68..4bdf8a6cfb47 100644 --- a/drivers/gpu/drm/i915/intel_device_info.h +++ b/drivers/gpu/drm/i915/intel_device_info.h @@ -137,6 +137,7 @@ enum intel_ppgtt_type { func(has_ddi); \ func(has_dp_mst); \ func(has_dsb); \ + func(has_dsc); \ func(has_fbc); \ func(has_gmch); \ func(has_hdcp); \ |