diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3ee350129f36..b83389c06550 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1314,11 +1314,17 @@ static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
  */
 #define IS_GEN(dev_priv, n)		(GRAPHICS_VER(dev_priv) == (n))
 
+#define IP_VER(ver, rel)		((ver) << 8 | (rel))
+
 #define GRAPHICS_VER(i915)		(INTEL_INFO(i915)->graphics_ver)
+#define GRAPHICS_VER_FULL(i915)		IP_VER(INTEL_INFO(i915)->graphics_ver, \
+					       INTEL_INFO(i915)->graphics_rel)
 #define IS_GRAPHICS_VER(i915, from, until) \
 	(GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
 
 #define MEDIA_VER(i915)			(INTEL_INFO(i915)->media_ver)
+#define MEDIA_VER_FULL(i915)		IP_VER(INTEL_INFO(i915)->media_ver, \
+					       INTEL_INFO(i915)->media_rel)
 #define IS_MEDIA_VER(i915, from, until) \
 	(MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
 
@@ -1447,6 +1453,12 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define IS_DG1(dev_priv)        IS_PLATFORM(dev_priv, INTEL_DG1)
 #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) \
@@ -1557,6 +1569,31 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 	(IS_ALDERLAKE_P(__i915) && \
 	 IS_GT_STEP(__i915, since, until))
 
+#define IS_XEHPSDV_GT_STEP(p, since, until) \
+	(IS_XEHPSDV(p) && IS_GT_STEP(__i915, 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 e18e267dcd5f..19f665b8ffc3 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -963,6 +963,65 @@ static const struct intel_device_info adl_p_info = {
 };
 
 #undef GEN
+
+#define XE_HP_PAGE_SIZES \
+	.page_sizes = I915_GTT_PAGE_SIZE_4K | \
+		      I915_GTT_PAGE_SIZE_64K | \
+		      I915_GTT_PAGE_SIZE_2M
+
+#define XE_HP_FEATURES \
+	.graphics_ver = 12, \
+	.graphics_rel = 50, \
+	XE_HP_PAGE_SIZES, \
+	.dma_mask_size = 46, \
+	.has_64bit_reloc = 1, \
+	.has_global_mocs = 1, \
+	.has_gt_uc = 1, \
+	.has_llc = 1, \
+	.has_logical_ring_contexts = 1, \
+	.has_logical_ring_elsq = 1, \
+	.has_rc6 = 1, \
+	.has_reset_engine = 1, \
+	.has_rps = 1, \
+	.has_runtime_pm = 1, \
+	.ppgtt_size = 48, \
+	.ppgtt_type = INTEL_PPGTT_FULL
+
+#define XE_HPM_FEATURES \
+	.media_ver = 12, \
+	.media_rel = 50
+
+__maybe_unused
+static const struct intel_device_info xehpsdv_info = {
+	XE_HP_FEATURES,
+	XE_HPM_FEATURES,
+	DGFX_FEATURES,
+	PLATFORM(INTEL_XEHPSDV),
+	.display = { },
+	.pipe_mask = 0,
+	.platform_engine_mask =
+		BIT(RCS0) | BIT(BCS0) |
+		BIT(VECS0) | BIT(VECS1) |
+		BIT(VCS0) | BIT(VCS1) | BIT(VCS2) | BIT(VCS3),
+	.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_rel = 55,
+	.media_rel = 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 7eaa92fee421..822a26b574a9 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -68,6 +68,8 @@ static const char * const platform_names[] = {
 	PLATFORM_NAME(DG1),
 	PLATFORM_NAME(ALDERLAKE_S),
 	PLATFORM_NAME(ALDERLAKE_P),
+	PLATFORM_NAME(XEHPSDV),
+	PLATFORM_NAME(DG2),
 };
 #undef PLATFORM_NAME
 
@@ -96,9 +98,17 @@ static const char *iommu_name(void)
 void intel_device_info_print_static(const struct intel_device_info *info,
 				    struct drm_printer *p)
 {
-	drm_printf(p, "graphics_ver: %u\n", info->graphics_ver);
-	drm_printf(p, "media_ver: %u\n", info->media_ver);
-	drm_printf(p, "display_ver: %u\n", info->display.ver);
+	if (info->graphics_rel)
+		drm_printf(p, "graphics version: %u.%02u\n", info->graphics_ver, info->graphics_rel);
+	else
+		drm_printf(p, "graphics version: %u\n", info->graphics_ver);
+
+	if (info->media_rel)
+		drm_printf(p, "media version: %u.%02u\n", info->media_ver, info->media_rel);
+	else
+		drm_printf(p, "media version: %u\n", info->media_ver);
+
+	drm_printf(p, "display version: %u\n", info->display.ver);
 	drm_printf(p, "gt: %d\n", info->gt);
 	drm_printf(p, "iommu: %s\n", iommu_name());
 	drm_printf(p, "memory-regions: %x\n", info->memory_regions);
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index b326aff65cd6..4447b121c8c2 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -88,6 +88,8 @@ enum intel_platform {
 	INTEL_DG1,
 	INTEL_ALDERLAKE_S,
 	INTEL_ALDERLAKE_P,
+	INTEL_XEHPSDV,
+	INTEL_DG2,
 	INTEL_MAX_PLATFORMS
 };
 
@@ -106,6 +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,
@@ -162,7 +168,9 @@ enum intel_ppgtt_type {
 
 struct intel_device_info {
 	u8 graphics_ver;
+	u8 graphics_rel;
 	u8 media_ver;
+	u8 media_rel;
 
 	u8 gt; /* GT number, 0 if undefined */
 	intel_engine_mask_t platform_engine_mask; /* Engines supported by the HW */
diff --git a/drivers/gpu/drm/i915/intel_step.c b/drivers/gpu/drm/i915/intel_step.c
index 9fcf17708cc8..12c92e554253 100644
--- a/drivers/gpu/drm/i915/intel_step.c
+++ b/drivers/gpu/drm/i915/intel_step.c
@@ -101,6 +101,25 @@ static const struct intel_step_info adlp_revids[] = {
 	[0xC] = { .gt_step = STEP_C0, .display_step = STEP_D0 },
 };
 
+static const struct intel_step_info xehpsdv_revids[] = {
+	[0x0] = { .gt_step = STEP_A0 },
+	[0x1] = { .gt_step = STEP_A1 },
+	[0x4] = { .gt_step = STEP_B0 },
+	[0x8] = { .gt_step = STEP_C0 },
+};
+
+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;
@@ -108,7 +127,16 @@ 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_XEHPSDV(i915)) {
+		revids = xehpsdv_revids;
+		size = ARRAY_SIZE(xehpsdv_revids);
+	} else if (IS_ALDERLAKE_P(i915)) {
 		revids = adlp_revids;
 		size = ARRAY_SIZE(adlp_revids);
 	} 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 88a77159703e..41567d9b7c35 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,