DG2 has Xe_LPD display (version 13) and Xe_HPG (version 12.55) graphics. There are two variants (treated as subplatforms in the code): DG2-G10 and DG2-G11 that require independent programming in some areas (e.g., workarounds).
Bspec: 44472, 44474, 46197, 48028, 48077 Cc: Anusha Srivatsa anusha.srivatsa@intel.com Signed-off-by: Matt Roper matthew.d.roper@intel.com --- drivers/gpu/drm/i915/i915_drv.h | 27 ++++++++++++++++++++++++ drivers/gpu/drm/i915/i915_pci.c | 16 ++++++++++++++ drivers/gpu/drm/i915/intel_device_info.c | 1 + drivers/gpu/drm/i915/intel_device_info.h | 5 +++++ drivers/gpu/drm/i915/intel_step.c | 20 +++++++++++++++++- drivers/gpu/drm/i915/intel_step.h | 1 + 6 files changed, 69 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 63bed18a2be7..828ad607795a 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1407,6 +1407,11 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S) #define IS_ALDERLAKE_P(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_P) #define IS_XEHPSDV(dev_priv) IS_PLATFORM(dev_priv, INTEL_XEHPSDV) +#define IS_DG2(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG2) +#define IS_DG2_G10(dev_priv) \ + IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G10) +#define IS_DG2_G11(dev_priv) \ + IS_SUBPLATFORM(dev_priv, INTEL_DG2, INTEL_SUBPLATFORM_G11) #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \ (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00) #define IS_BDW_ULT(dev_priv) \ @@ -1574,6 +1579,28 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define IS_XEHPSDV_REVID(p, since, until) \ (IS_XEHPSDV(p) && IS_REVID(p, since, until))
+/* + * DG2 hardware steppings are a bit unusual. The hardware design was forked + * to create two variants (G10 and G11) which have distinct workaround sets. + * The G11 fork of the DG2 design resets the GT stepping back to "A0" for its + * first iteration, even though it's more similar to a G10 B0 stepping in terms + * of functionality and workarounds. However the display stepping does not + * reset in the same manner --- a specific stepping like "B0" has a consistent + * meaning regardless of whether it belongs to a G10 or G11 DG2. + * + * TLDR: All GT workarounds and stepping-specific logic must be applied in + * relation to a specific subplatform (G10 or G11), whereas display workarounds + * and stepping-specific logic will be applied with a general DG2-wide stepping + * number. + */ +#define IS_DG2_GT_STEP(__i915, variant, since, until) \ + (IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \ + IS_GT_STEP(__i915, since, until)) + +#define IS_DG2_DISP_STEP(__i915, since, until) \ + (IS_DG2(__i915) && \ + IS_DISPLAY_STEP(__i915, since, until)) + #define IS_LP(dev_priv) (INTEL_INFO(dev_priv)->is_lp) #define IS_GEN9_LP(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && IS_LP(dev_priv)) #define IS_GEN9_BC(dev_priv) (GRAPHICS_VER(dev_priv) == 9 && !IS_LP(dev_priv)) diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 046309e95f43..a41e1792c0ff 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -1040,6 +1040,22 @@ static const struct intel_device_info xehpsdv_info = { .require_force_probe = 1, };
+__maybe_unused +static const struct intel_device_info dg2_info = { + XE_HP_FEATURES, + XE_HPM_FEATURES, + XE_LPD_FEATURES, + DGFX_FEATURES, + .graphics_ver_release = 55, + .media_ver_release = 55, + PLATFORM(INTEL_DG2), + .platform_engine_mask = + BIT(RCS0) | BIT(BCS0) | + BIT(VECS0) | BIT(VECS1) | + BIT(VCS0) | BIT(VCS2), + .require_force_probe = 1, +}; + #undef PLATFORM
/* diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 7b37b68f4548..41205dc356b7 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -69,6 +69,7 @@ static const char * const platform_names[] = { PLATFORM_NAME(ALDERLAKE_S), PLATFORM_NAME(ALDERLAKE_P), PLATFORM_NAME(XEHPSDV), + PLATFORM_NAME(DG2), }; #undef PLATFORM_NAME
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h index e8684199b0c9..856f0aa5d68f 100644 --- a/drivers/gpu/drm/i915/intel_device_info.h +++ b/drivers/gpu/drm/i915/intel_device_info.h @@ -89,6 +89,7 @@ enum intel_platform { INTEL_ALDERLAKE_S, INTEL_ALDERLAKE_P, INTEL_XEHPSDV, + INTEL_DG2, INTEL_MAX_PLATFORMS };
@@ -107,6 +108,10 @@ enum intel_platform { /* CNL/ICL */ #define INTEL_SUBPLATFORM_PORTF (0)
+/* DG2 */ +#define INTEL_SUBPLATFORM_G10 0 +#define INTEL_SUBPLATFORM_G11 1 + enum intel_ppgtt_type { INTEL_PPGTT_NONE = I915_GEM_PPGTT_NONE, INTEL_PPGTT_ALIASING = I915_GEM_PPGTT_ALIASING, diff --git a/drivers/gpu/drm/i915/intel_step.c b/drivers/gpu/drm/i915/intel_step.c index ba9479a67521..30a53d9b76c1 100644 --- a/drivers/gpu/drm/i915/intel_step.c +++ b/drivers/gpu/drm/i915/intel_step.c @@ -54,6 +54,18 @@ static const struct intel_step_info adlp_revid_step_tbl[] = { [0xC] = { .gt_step = STEP_C0, .display_step = STEP_D0 }, };
+static const struct intel_step_info dg2_g10_revid_step_tbl[] = { + [0x0] = { .gt_step = STEP_A0, .display_step = STEP_A0 }, + [0x1] = { .gt_step = STEP_A1, .display_step = STEP_A0 }, + [0x4] = { .gt_step = STEP_B0, .display_step = STEP_B0 }, + [0x8] = { .gt_step = STEP_C0, .display_step = STEP_C0 }, +}; + +static const struct intel_step_info dg2_g11_revid_step_tbl[] = { + [0x0] = { .gt_step = STEP_A0, .display_step = STEP_B0 }, + [0x4] = { .gt_step = STEP_B0, .display_step = STEP_C0 }, +}; + void intel_step_init(struct drm_i915_private *i915) { const struct intel_step_info *revids = NULL; @@ -61,7 +73,13 @@ void intel_step_init(struct drm_i915_private *i915) int revid = INTEL_REVID(i915); struct intel_step_info step = {};
- if (IS_ALDERLAKE_P(i915)) { + if (IS_DG2_G10(i915)) { + revids = dg2_g10_revid_step_tbl; + size = ARRAY_SIZE(dg2_g10_revid_step_tbl); + } else if (IS_DG2_G11(i915)) { + revids = dg2_g11_revid_step_tbl; + size = ARRAY_SIZE(dg2_g11_revid_step_tbl); + } else if (IS_ALDERLAKE_P(i915)) { revids = adlp_revid_step_tbl; size = ARRAY_SIZE(adlp_revid_step_tbl); } else if (IS_ALDERLAKE_S(i915)) { diff --git a/drivers/gpu/drm/i915/intel_step.h b/drivers/gpu/drm/i915/intel_step.h index 958a8bb5d677..8efacef6ab31 100644 --- a/drivers/gpu/drm/i915/intel_step.h +++ b/drivers/gpu/drm/i915/intel_step.h @@ -22,6 +22,7 @@ struct intel_step_info { enum intel_step { STEP_NONE = 0, STEP_A0, + STEP_A1, STEP_A2, STEP_B0, STEP_B1,