diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sideband.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sideband.h | 2 |
4 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 0a76df1a7d51..f601f3ae0794 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -84,6 +84,7 @@ #include "intel_gvt.h" #include "intel_memory_region.h" #include "intel_pm.h" +#include "intel_sideband.h" #include "vlv_suspend.h" static struct drm_driver driver; @@ -616,6 +617,8 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv) */ intel_dram_detect(dev_priv); + intel_pcode_init(dev_priv); + intel_bw_init_hw(dev_priv); return 0; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 88c215cf97d4..ca97b360bab3 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -9227,6 +9227,9 @@ enum { #define GEN9_SAGV_DISABLE 0x0 #define GEN9_SAGV_IS_DISABLED 0x1 #define GEN9_SAGV_ENABLE 0x3 +#define DG1_PCODE_STATUS 0x7E +#define DG1_UNCORE_GET_INIT_STATUS 0x0 +#define DG1_UNCORE_INIT_STATUS_COMPLETE 0x1 #define GEN12_PCODE_READ_SAGV_BLOCK_TIME_US 0x23 #define GEN6_PCODE_DATA _MMIO(0x138128) #define GEN6_PCODE_FREQ_IA_RATIO_SHIFT 8 diff --git a/drivers/gpu/drm/i915/intel_sideband.c b/drivers/gpu/drm/i915/intel_sideband.c index 5b3279262123..02ebf5a04a9b 100644 --- a/drivers/gpu/drm/i915/intel_sideband.c +++ b/drivers/gpu/drm/i915/intel_sideband.c @@ -555,3 +555,18 @@ out: return ret ? ret : status; #undef COND } + +void intel_pcode_init(struct drm_i915_private *i915) +{ + int ret; + + if (!IS_DGFX(i915)) + return; + + ret = skl_pcode_request(i915, DG1_PCODE_STATUS, + DG1_UNCORE_GET_INIT_STATUS, + DG1_UNCORE_INIT_STATUS_COMPLETE, + DG1_UNCORE_INIT_STATUS_COMPLETE, 50); + if (ret) + drm_err(&i915->drm, "Pcode did not report uncore initialization completion!\n"); +} diff --git a/drivers/gpu/drm/i915/intel_sideband.h b/drivers/gpu/drm/i915/intel_sideband.h index 7fb95745a444..094c7b19c5d4 100644 --- a/drivers/gpu/drm/i915/intel_sideband.h +++ b/drivers/gpu/drm/i915/intel_sideband.h @@ -138,4 +138,6 @@ int sandybridge_pcode_write_timeout(struct drm_i915_private *i915, u32 mbox, int skl_pcode_request(struct drm_i915_private *i915, u32 mbox, u32 request, u32 reply_mask, u32 reply, int timeout_base_ms); +void intel_pcode_init(struct drm_i915_private *i915); + #endif /* _INTEL_SIDEBAND_H */ |