drm/xe/mmio: Use struct xe_reg

Convert all the callers to deal with xe_mmio_*() using struct xe_reg
instead of plain u32. In a few places there was also a rename
s/reg/reg_val/ when dealing with the value returned so it doesn't get
mixed up with the register address.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20230508225322.2692066-2-lucas.demarchi@intel.comSigned-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_device.c

@@ -345,7 +345,7 @@ void xe_device_wmb(struct xe_device *xe)
 
 	wmb();
 	if (IS_DGFX(xe))
-		xe_mmio_write32(gt, SOFTWARE_FLAGS_SPR33.reg, 0);
+		xe_mmio_write32(gt, SOFTWARE_FLAGS_SPR33, 0);
 }
 
 u32 xe_device_ccs_bytes(struct xe_device *xe, u64 size)

drivers/gpu/drm/xe/xe_execlist.c

@@ -60,7 +60,7 @@ static void __start_lrc(struct xe_hw_engine *hwe, struct xe_lrc *lrc,
 	}
 
 	if (hwe->class == XE_ENGINE_CLASS_COMPUTE)
-		xe_mmio_write32(hwe->gt, RCU_MODE.reg,
+		xe_mmio_write32(hwe->gt, RCU_MODE,
 				_MASKED_BIT_ENABLE(RCU_MODE_CCS_ENABLE));
 
 	xe_lrc_write_ctx_reg(lrc, CTX_RING_TAIL, lrc->ring.tail);
@@ -78,17 +78,17 @@ static void __start_lrc(struct xe_hw_engine *hwe, struct xe_lrc *lrc,
 	 */
 	wmb();
 
-	xe_mmio_write32(gt, RING_HWS_PGA(hwe->mmio_base).reg,
+	xe_mmio_write32(gt, RING_HWS_PGA(hwe->mmio_base),
 			xe_bo_ggtt_addr(hwe->hwsp));
-	xe_mmio_read32(gt, RING_HWS_PGA(hwe->mmio_base).reg);
-	xe_mmio_write32(gt, RING_MODE(hwe->mmio_base).reg,
+	xe_mmio_read32(gt, RING_HWS_PGA(hwe->mmio_base));
+	xe_mmio_write32(gt, RING_MODE(hwe->mmio_base),
 			_MASKED_BIT_ENABLE(GFX_DISABLE_LEGACY_MODE));
 
-	xe_mmio_write32(gt, RING_EXECLIST_SQ_CONTENTS_LO(hwe->mmio_base).reg,
+	xe_mmio_write32(gt, RING_EXECLIST_SQ_CONTENTS_LO(hwe->mmio_base),
 			lower_32_bits(lrc_desc));
-	xe_mmio_write32(gt, RING_EXECLIST_SQ_CONTENTS_HI(hwe->mmio_base).reg,
+	xe_mmio_write32(gt, RING_EXECLIST_SQ_CONTENTS_HI(hwe->mmio_base),
 			upper_32_bits(lrc_desc));
-	xe_mmio_write32(gt, RING_EXECLIST_CONTROL(hwe->mmio_base).reg,
+	xe_mmio_write32(gt, RING_EXECLIST_CONTROL(hwe->mmio_base),
 			EL_CTRL_LOAD);
 }
 
@@ -173,8 +173,8 @@ static u64 read_execlist_status(struct xe_hw_engine *hwe)
 	struct xe_gt *gt = hwe->gt;
 	u32 hi, lo;
 
-	lo = xe_mmio_read32(gt, RING_EXECLIST_STATUS_LO(hwe->mmio_base).reg);
-	hi = xe_mmio_read32(gt, RING_EXECLIST_STATUS_HI(hwe->mmio_base).reg);
+	lo = xe_mmio_read32(gt, RING_EXECLIST_STATUS_LO(hwe->mmio_base));
+	hi = xe_mmio_read32(gt, RING_EXECLIST_STATUS_HI(hwe->mmio_base));
 
 	printk(KERN_INFO "EXECLIST_STATUS %d:%d = 0x%08x %08x\n", hwe->class,
 	       hwe->instance, hi, lo);

drivers/gpu/drm/xe/xe_force_wake.c

@@ -8,6 +8,7 @@
 #include <drm/drm_util.h>
 
 #include "regs/xe_gt_regs.h"
+#include "regs/xe_reg_defs.h"
 #include "xe_gt.h"
 #include "xe_mmio.h"
 
@@ -27,7 +28,7 @@ fw_to_xe(struct xe_force_wake *fw)
 
 static void domain_init(struct xe_force_wake_domain *domain,
 			enum xe_force_wake_domain_id id,
-			u32 reg, u32 ack, u32 val, u32 mask)
+			struct xe_reg reg, struct xe_reg ack, u32 val, u32 mask)
 {
 	domain->id = id;
 	domain->reg_ctl = reg;
@@ -49,14 +50,14 @@ void xe_force_wake_init_gt(struct xe_gt *gt, struct xe_force_wake *fw)
 	if (xe->info.graphics_verx100 >= 1270) {
 		domain_init(&fw->domains[XE_FW_DOMAIN_ID_GT],
 			    XE_FW_DOMAIN_ID_GT,
-			    FORCEWAKE_GT.reg,
-			    FORCEWAKE_ACK_GT_MTL.reg,
+			    FORCEWAKE_GT,
+			    FORCEWAKE_ACK_GT_MTL,
 			    BIT(0), BIT(16));
 	} else {
 		domain_init(&fw->domains[XE_FW_DOMAIN_ID_GT],
 			    XE_FW_DOMAIN_ID_GT,
-			    FORCEWAKE_GT.reg,
-			    FORCEWAKE_ACK_GT.reg,
+			    FORCEWAKE_GT,
+			    FORCEWAKE_ACK_GT,
 			    BIT(0), BIT(16));
 	}
 }
@@ -71,8 +72,8 @@ void xe_force_wake_init_engines(struct xe_gt *gt, struct xe_force_wake *fw)
 	if (!xe_gt_is_media_type(gt))
 		domain_init(&fw->domains[XE_FW_DOMAIN_ID_RENDER],
 			    XE_FW_DOMAIN_ID_RENDER,
-			    FORCEWAKE_RENDER.reg,
-			    FORCEWAKE_ACK_RENDER.reg,
+			    FORCEWAKE_RENDER,
+			    FORCEWAKE_ACK_RENDER,
 			    BIT(0), BIT(16));
 
 	for (i = XE_HW_ENGINE_VCS0, j = 0; i <= XE_HW_ENGINE_VCS7; ++i, ++j) {
@@ -81,8 +82,8 @@ void xe_force_wake_init_engines(struct xe_gt *gt, struct xe_force_wake *fw)
 
 		domain_init(&fw->domains[XE_FW_DOMAIN_ID_MEDIA_VDBOX0 + j],
 			    XE_FW_DOMAIN_ID_MEDIA_VDBOX0 + j,
-			    FORCEWAKE_MEDIA_VDBOX(j).reg,
-			    FORCEWAKE_ACK_MEDIA_VDBOX(j).reg,
+			    FORCEWAKE_MEDIA_VDBOX(j),
+			    FORCEWAKE_ACK_MEDIA_VDBOX(j),
 			    BIT(0), BIT(16));
 	}
 
@@ -92,8 +93,8 @@ void xe_force_wake_init_engines(struct xe_gt *gt, struct xe_force_wake *fw)
 
 		domain_init(&fw->domains[XE_FW_DOMAIN_ID_MEDIA_VEBOX0 + j],
 			    XE_FW_DOMAIN_ID_MEDIA_VEBOX0 + j,
-			    FORCEWAKE_MEDIA_VEBOX(j).reg,
-			    FORCEWAKE_ACK_MEDIA_VEBOX(j).reg,
+			    FORCEWAKE_MEDIA_VEBOX(j),
+			    FORCEWAKE_ACK_MEDIA_VEBOX(j),
 			    BIT(0), BIT(16));
 	}
 }
@@ -128,7 +129,7 @@ static int domain_sleep_wait(struct xe_gt *gt,
 	for (tmp__ = (mask__); tmp__; tmp__ &= ~BIT(ffs(tmp__) - 1)) \
 		for_each_if((domain__ = ((fw__)->domains + \
 					 (ffs(tmp__) - 1))) && \
-					 domain__->reg_ctl)
+					 domain__->reg_ctl.reg)
 
 int xe_force_wake_get(struct xe_force_wake *fw,
 		      enum xe_force_wake_domains domains)

drivers/gpu/drm/xe/xe_force_wake_types.h

@@ -9,6 +9,8 @@
 #include <linux/mutex.h>
 #include <linux/types.h>
 
+#include "regs/xe_reg_defs.h"
+
 enum xe_force_wake_domain_id {
 	XE_FW_DOMAIN_ID_GT = 0,
 	XE_FW_DOMAIN_ID_RENDER,
@@ -56,9 +58,9 @@ struct xe_force_wake_domain {
 	/** @id: domain force wake id */
 	enum xe_force_wake_domain_id id;
 	/** @reg_ctl: domain wake control register address */
-	u32 reg_ctl;
+	struct xe_reg reg_ctl;
 	/** @reg_ack: domain ack register address */
-	u32 reg_ack;
+	struct xe_reg reg_ack;
 	/** @val: domain wake write value */
 	u32 val;
 	/** @mask: domain mask */

drivers/gpu/drm/xe/xe_ggtt.c

@@ -207,12 +207,12 @@ void xe_ggtt_invalidate(struct xe_gt *gt)
 		struct xe_device *xe = gt_to_xe(gt);
 
 		if (xe->info.platform == XE_PVC) {
-			xe_mmio_write32(gt, PVC_GUC_TLB_INV_DESC1.reg,
+			xe_mmio_write32(gt, PVC_GUC_TLB_INV_DESC1,
 					PVC_GUC_TLB_INV_DESC1_INVALIDATE);
-			xe_mmio_write32(gt, PVC_GUC_TLB_INV_DESC0.reg,
+			xe_mmio_write32(gt, PVC_GUC_TLB_INV_DESC0,
 					PVC_GUC_TLB_INV_DESC0_VALID);
 		} else
-			xe_mmio_write32(gt, GUC_TLB_INV_CR.reg,
+			xe_mmio_write32(gt, GUC_TLB_INV_CR,
 					GUC_TLB_INV_CR_INVALIDATE);
 	}
 }

drivers/gpu/drm/xe/xe_gt.c

@@ -544,8 +544,8 @@ static int do_gt_reset(struct xe_gt *gt)
 	struct xe_device *xe = gt_to_xe(gt);
 	int err;
 
-	xe_mmio_write32(gt, GDRST.reg, GRDOM_FULL);
-	err = xe_mmio_wait32(gt, GDRST.reg, 0, GRDOM_FULL, 5000,
+	xe_mmio_write32(gt, GDRST, GRDOM_FULL);
+	err = xe_mmio_wait32(gt, GDRST, 0, GRDOM_FULL, 5000,
 			     NULL, false);
 	if (err)
 		drm_err(&xe->drm,

drivers/gpu/drm/xe/xe_gt_clock.c

@@ -14,7 +14,7 @@
 
 static u32 read_reference_ts_freq(struct xe_gt *gt)
 {
-	u32 ts_override = xe_mmio_read32(gt, TIMESTAMP_OVERRIDE.reg);
+	u32 ts_override = xe_mmio_read32(gt, TIMESTAMP_OVERRIDE);
 	u32 base_freq, frac_freq;
 
 	base_freq = REG_FIELD_GET(TIMESTAMP_OVERRIDE_US_COUNTER_DIVIDER_MASK,
@@ -54,7 +54,7 @@ static u32 get_crystal_clock_freq(u32 rpm_config_reg)
 
 int xe_gt_clock_init(struct xe_gt *gt)
 {
-	u32 ctc_reg = xe_mmio_read32(gt, CTC_MODE.reg);
+	u32 ctc_reg = xe_mmio_read32(gt, CTC_MODE);
 	u32 freq = 0;
 
 	/* Assuming gen11+ so assert this assumption is correct */
@@ -63,7 +63,7 @@ int xe_gt_clock_init(struct xe_gt *gt)
 	if (ctc_reg & CTC_SOURCE_DIVIDE_LOGIC) {
 		freq = read_reference_ts_freq(gt);
 	} else {
-		u32 c0 = xe_mmio_read32(gt, RPM_CONFIG0.reg);
+		u32 c0 = xe_mmio_read32(gt, RPM_CONFIG0);
 
 		freq = get_crystal_clock_freq(c0);
 

drivers/gpu/drm/xe/xe_gt_mcr.c

@@ -40,6 +40,8 @@
  * non-terminated instance.
  */
 
+#define STEER_SEMAPHORE		XE_REG(0xFD0)
+
 static inline struct xe_reg to_xe_reg(struct xe_reg_mcr reg_mcr)
 {
 	return reg_mcr.__reg;
@@ -183,9 +185,9 @@ static void init_steering_l3bank(struct xe_gt *gt)
 {
 	if (GRAPHICS_VERx100(gt_to_xe(gt)) >= 1270) {
 		u32 mslice_mask = REG_FIELD_GET(MEML3_EN_MASK,
-						xe_mmio_read32(gt, MIRROR_FUSE3.reg));
+						xe_mmio_read32(gt, MIRROR_FUSE3));
 		u32 bank_mask = REG_FIELD_GET(GT_L3_EXC_MASK,
-					      xe_mmio_read32(gt, XEHP_FUSE4.reg));
+					      xe_mmio_read32(gt, XEHP_FUSE4));
 
 		/*
 		 * Group selects mslice, instance selects bank within mslice.
@@ -196,7 +198,7 @@ static void init_steering_l3bank(struct xe_gt *gt)
 			bank_mask & BIT(0) ? 0 : 2;
 	} else if (gt_to_xe(gt)->info.platform == XE_DG2) {
 		u32 mslice_mask = REG_FIELD_GET(MEML3_EN_MASK,
-						xe_mmio_read32(gt, MIRROR_FUSE3.reg));
+						xe_mmio_read32(gt, MIRROR_FUSE3));
 		u32 bank = __ffs(mslice_mask) * 8;
 
 		/*
@@ -208,7 +210,7 @@ static void init_steering_l3bank(struct xe_gt *gt)
 		gt->steering[L3BANK].instance_target = bank & 0x3;
 	} else {
 		u32 fuse = REG_FIELD_GET(L3BANK_MASK,
-					 ~xe_mmio_read32(gt, MIRROR_FUSE3.reg));
+					 ~xe_mmio_read32(gt, MIRROR_FUSE3));
 
 		gt->steering[L3BANK].group_target = 0;	/* unused */
 		gt->steering[L3BANK].instance_target = __ffs(fuse);
@@ -218,7 +220,7 @@ static void init_steering_l3bank(struct xe_gt *gt)
 static void init_steering_mslice(struct xe_gt *gt)
 {
 	u32 mask = REG_FIELD_GET(MEML3_EN_MASK,
-				 xe_mmio_read32(gt, MIRROR_FUSE3.reg));
+				 xe_mmio_read32(gt, MIRROR_FUSE3));
 
 	/*
 	 * mslice registers are valid (not terminated) if either the meml3
@@ -337,8 +339,8 @@ void xe_gt_mcr_set_implicit_defaults(struct xe_gt *gt)
 		u32 steer_val = REG_FIELD_PREP(MCR_SLICE_MASK, 0) |
 			REG_FIELD_PREP(MCR_SUBSLICE_MASK, 2);
 
-		xe_mmio_write32(gt, MCFG_MCR_SELECTOR.reg, steer_val);
-		xe_mmio_write32(gt, SF_MCR_SELECTOR.reg, steer_val);
+		xe_mmio_write32(gt, MCFG_MCR_SELECTOR, steer_val);
+		xe_mmio_write32(gt, SF_MCR_SELECTOR, steer_val);
 		/*
 		 * For GAM registers, all reads should be directed to instance 1
 		 * (unicast reads against other instances are not allowed),
@@ -376,7 +378,7 @@ static bool xe_gt_mcr_get_nonterminated_steering(struct xe_gt *gt,
 			continue;
 
 		for (int i = 0; gt->steering[type].ranges[i].end > 0; i++) {
-			if (xe_mmio_in_range(&gt->steering[type].ranges[i], reg.reg)) {
+			if (xe_mmio_in_range(&gt->steering[type].ranges[i], reg)) {
 				*group = gt->steering[type].group_target;
 				*instance = gt->steering[type].instance_target;
 				return true;
@@ -387,7 +389,7 @@ static bool xe_gt_mcr_get_nonterminated_steering(struct xe_gt *gt,
 	implicit_ranges = gt->steering[IMPLICIT_STEERING].ranges;
 	if (implicit_ranges)
 		for (int i = 0; implicit_ranges[i].end > 0; i++)
-			if (xe_mmio_in_range(&implicit_ranges[i], reg.reg))
+			if (xe_mmio_in_range(&implicit_ranges[i], reg))
 				return false;
 
 	/*
@@ -403,8 +405,6 @@ static bool xe_gt_mcr_get_nonterminated_steering(struct xe_gt *gt,
 	return true;
 }
 
-#define STEER_SEMAPHORE		0xFD0
-
 /*
  * Obtain exclusive access to MCR steering.  On MTL and beyond we also need
  * to synchronize with external clients (e.g., firmware), so a semaphore
@@ -446,16 +446,17 @@ static u32 rw_with_mcr_steering(struct xe_gt *gt, struct xe_reg_mcr reg_mcr,
 				u8 rw_flag, int group, int instance, u32 value)
 {
 	const struct xe_reg reg = to_xe_reg(reg_mcr);
-	u32 steer_reg, steer_val, val = 0;
+	struct xe_reg steer_reg;
+	u32 steer_val, val = 0;
 
 	lockdep_assert_held(&gt->mcr_lock);
 
 	if (GRAPHICS_VERx100(gt_to_xe(gt)) >= 1270) {
-		steer_reg = MTL_MCR_SELECTOR.reg;
+		steer_reg = MTL_MCR_SELECTOR;
 		steer_val = REG_FIELD_PREP(MTL_MCR_GROUPID, group) |
 			REG_FIELD_PREP(MTL_MCR_INSTANCEID, instance);
 	} else {
-		steer_reg = MCR_SELECTOR.reg;
+		steer_reg = MCR_SELECTOR;
 		steer_val = REG_FIELD_PREP(MCR_SLICE_MASK, group) |
 			REG_FIELD_PREP(MCR_SUBSLICE_MASK, instance);
 	}
@@ -480,9 +481,9 @@ static u32 rw_with_mcr_steering(struct xe_gt *gt, struct xe_reg_mcr reg_mcr,
 	xe_mmio_write32(gt, steer_reg, steer_val);
 
 	if (rw_flag == MCR_OP_READ)
-		val = xe_mmio_read32(gt, reg.reg);
+		val = xe_mmio_read32(gt, reg);
 	else
-		xe_mmio_write32(gt, reg.reg, value);
+		xe_mmio_write32(gt, reg, value);
 
 	/*
 	 * If we turned off the multicast bit (during a write) we're required
@@ -524,7 +525,7 @@ u32 xe_gt_mcr_unicast_read_any(struct xe_gt *gt, struct xe_reg_mcr reg_mcr)
 					   group, instance, 0);
 		mcr_unlock(gt);
 	} else {
-		val = xe_mmio_read32(gt, reg.reg);
+		val = xe_mmio_read32(gt, reg);
 	}
 
 	return val;
@@ -591,7 +592,7 @@ void xe_gt_mcr_multicast_write(struct xe_gt *gt, struct xe_reg_mcr reg_mcr,
 	 * to touch the steering register.
 	 */
 	mcr_lock(gt);
-	xe_mmio_write32(gt, reg.reg, value);
+	xe_mmio_write32(gt, reg, value);
 	mcr_unlock(gt);
 }
 

drivers/gpu/drm/xe/xe_gt_topology.c

@@ -26,7 +26,7 @@ load_dss_mask(struct xe_gt *gt, xe_dss_mask_t mask, int numregs, ...)
 
 	va_start(argp, numregs);
 	for (i = 0; i < numregs; i++)
-		fuse_val[i] = xe_mmio_read32(gt, va_arg(argp, u32));
+		fuse_val[i] = xe_mmio_read32(gt, va_arg(argp, struct xe_reg));
 	va_end(argp);
 
 	bitmap_from_arr32(mask, fuse_val, numregs * 32);
@@ -36,7 +36,7 @@ static void
 load_eu_mask(struct xe_gt *gt, xe_eu_mask_t mask)
 {
 	struct xe_device *xe = gt_to_xe(gt);
-	u32 reg = xe_mmio_read32(gt, XELP_EU_ENABLE.reg);
+	u32 reg_val = xe_mmio_read32(gt, XELP_EU_ENABLE);
 	u32 val = 0;
 	int i;
 
@@ -47,15 +47,15 @@ load_eu_mask(struct xe_gt *gt, xe_eu_mask_t mask)
 	 * of enable).
 	 */
 	if (GRAPHICS_VERx100(xe) < 1250)
-		reg = ~reg & XELP_EU_MASK;
+		reg_val = ~reg_val & XELP_EU_MASK;
 
 	/* On PVC, one bit = one EU */
 	if (GRAPHICS_VERx100(xe) == 1260) {
-		val = reg;
+		val = reg_val;
 	} else {
 		/* All other platforms, one bit = 2 EU */
-		for (i = 0; i < fls(reg); i++)
-			if (reg & BIT(i))
+		for (i = 0; i < fls(reg_val); i++)
+			if (reg_val & BIT(i))
 				val |= 0x3 << 2 * i;
 	}
 
@@ -95,10 +95,10 @@ xe_gt_topology_init(struct xe_gt *gt)
 
 	load_dss_mask(gt, gt->fuse_topo.g_dss_mask,
 		      num_geometry_regs,
-		      XELP_GT_GEOMETRY_DSS_ENABLE.reg);
+		      XELP_GT_GEOMETRY_DSS_ENABLE);
 	load_dss_mask(gt, gt->fuse_topo.c_dss_mask, num_compute_regs,
-		      XEHP_GT_COMPUTE_DSS_ENABLE.reg,
-		      XEHPC_GT_COMPUTE_DSS_ENABLE_EXT.reg);
+		      XEHP_GT_COMPUTE_DSS_ENABLE,
+		      XEHPC_GT_COMPUTE_DSS_ENABLE_EXT);
 	load_eu_mask(gt, gt->fuse_topo.eu_mask_per_dss);
 
 	xe_gt_topology_dump(gt, &p);

drivers/gpu/drm/xe/xe_guc.c

@@ -232,10 +232,10 @@ static void guc_write_params(struct xe_guc *guc)
 
 	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);
 
-	xe_mmio_write32(gt, SOFT_SCRATCH(0).reg, 0);
+	xe_mmio_write32(gt, SOFT_SCRATCH(0), 0);
 
 	for (i = 0; i < GUC_CTL_MAX_DWORDS; i++)
-		xe_mmio_write32(gt, SOFT_SCRATCH(1 + i).reg, guc->params[i]);
+		xe_mmio_write32(gt, SOFT_SCRATCH(1 + i), guc->params[i]);
 }
 
 int xe_guc_init(struct xe_guc *guc)
@@ -268,9 +268,9 @@ int xe_guc_init(struct xe_guc *guc)
 	guc_init_params(guc);
 
 	if (xe_gt_is_media_type(gt))
-		guc->notify_reg = MEDIA_GUC_HOST_INTERRUPT.reg;
+		guc->notify_reg = MEDIA_GUC_HOST_INTERRUPT;
 	else
-		guc->notify_reg = GUC_HOST_INTERRUPT.reg;
+		guc->notify_reg = GUC_HOST_INTERRUPT;
 
 	xe_uc_fw_change_status(&guc->fw, XE_UC_FIRMWARE_LOADABLE);
 
@@ -309,9 +309,9 @@ int xe_guc_reset(struct xe_guc *guc)
 
 	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);
 
-	xe_mmio_write32(gt, GDRST.reg, GRDOM_GUC);
+	xe_mmio_write32(gt, GDRST, GRDOM_GUC);
 
-	ret = xe_mmio_wait32(gt, GDRST.reg, 0, GRDOM_GUC, 5000,
+	ret = xe_mmio_wait32(gt, GDRST, 0, GRDOM_GUC, 5000,
 			     &gdrst, false);
 	if (ret) {
 		drm_err(&xe->drm, "GuC reset timed out, GEN6_GDRST=0x%8x\n",
@@ -319,7 +319,7 @@ int xe_guc_reset(struct xe_guc *guc)
 		goto err_out;
 	}
 
-	guc_status = xe_mmio_read32(gt, GUC_STATUS.reg);
+	guc_status = xe_mmio_read32(gt, GUC_STATUS);
 	if (!(guc_status & GS_MIA_IN_RESET)) {
 		drm_err(&xe->drm,
 			"GuC status: 0x%x, MIA core expected to be in reset\n",
@@ -352,9 +352,9 @@ static void guc_prepare_xfer(struct xe_guc *guc)
 		shim_flags |= PVC_GUC_MOCS_INDEX(PVC_GUC_MOCS_UC_INDEX);
 
 	/* Must program this register before loading the ucode with DMA */
-	xe_mmio_write32(gt, GUC_SHIM_CONTROL.reg, shim_flags);
+	xe_mmio_write32(gt, GUC_SHIM_CONTROL, shim_flags);
 
-	xe_mmio_write32(gt, GT_PM_CONFIG.reg, GT_DOORBELL_ENABLE);
+	xe_mmio_write32(gt, GT_PM_CONFIG, GT_DOORBELL_ENABLE);
 }
 
 /*
@@ -370,7 +370,7 @@ static int guc_xfer_rsa(struct xe_guc *guc)
 	if (guc->fw.rsa_size > 256) {
 		u32 rsa_ggtt_addr = xe_bo_ggtt_addr(guc->fw.bo) +
 				    xe_uc_fw_rsa_offset(&guc->fw);
-		xe_mmio_write32(gt, UOS_RSA_SCRATCH(0).reg, rsa_ggtt_addr);
+		xe_mmio_write32(gt, UOS_RSA_SCRATCH(0), rsa_ggtt_addr);
 		return 0;
 	}
 
@@ -379,7 +379,7 @@ static int guc_xfer_rsa(struct xe_guc *guc)
 		return -ENOMEM;
 
 	for (i = 0; i < UOS_RSA_SCRATCH_COUNT; i++)
-		xe_mmio_write32(gt, UOS_RSA_SCRATCH(i).reg, rsa[i]);
+		xe_mmio_write32(gt, UOS_RSA_SCRATCH(i), rsa[i]);
 
 	return 0;
 }
@@ -407,7 +407,7 @@ static int guc_wait_ucode(struct xe_guc *guc)
 	 * 200ms. Even at slowest clock, this should be sufficient. And
 	 * in the working case, a larger timeout makes no difference.
 	 */
-	ret = xe_mmio_wait32(guc_to_gt(guc), GUC_STATUS.reg,
+	ret = xe_mmio_wait32(guc_to_gt(guc), GUC_STATUS,
 			     FIELD_PREP(GS_UKERNEL_MASK,
 					XE_GUC_LOAD_STATUS_READY),
 			     GS_UKERNEL_MASK, 200000, &status, false);
@@ -435,7 +435,7 @@ static int guc_wait_ucode(struct xe_guc *guc)
 		    XE_GUC_LOAD_STATUS_EXCEPTION) {
 			drm_info(drm, "GuC firmware exception. EIP: %#x\n",
 				 xe_mmio_read32(guc_to_gt(guc),
-						SOFT_SCRATCH(13).reg));
+						SOFT_SCRATCH(13)));
 			ret = -ENXIO;
 		}
 
@@ -532,10 +532,10 @@ static void guc_handle_mmio_msg(struct xe_guc *guc)
 
 	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);
 
-	msg = xe_mmio_read32(gt, SOFT_SCRATCH(15).reg);
+	msg = xe_mmio_read32(gt, SOFT_SCRATCH(15));
 	msg &= XE_GUC_RECV_MSG_EXCEPTION |
 		XE_GUC_RECV_MSG_CRASH_DUMP_POSTED;
-	xe_mmio_write32(gt, SOFT_SCRATCH(15).reg, 0);
+	xe_mmio_write32(gt, SOFT_SCRATCH(15), 0);
 
 	if (msg & XE_GUC_RECV_MSG_CRASH_DUMP_POSTED)
 		drm_err(&guc_to_xe(guc)->drm,
@@ -553,12 +553,12 @@ static void guc_enable_irq(struct xe_guc *guc)
 		REG_FIELD_PREP(ENGINE0_MASK, GUC_INTR_GUC2HOST)  :
 		REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST);
 
-	xe_mmio_write32(gt, GUC_SG_INTR_ENABLE.reg,
+	xe_mmio_write32(gt, GUC_SG_INTR_ENABLE,
 			REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST));
 	if (xe_gt_is_media_type(gt))
-		xe_mmio_rmw32(gt, GUC_SG_INTR_MASK.reg, events, 0);
+		xe_mmio_rmw32(gt, GUC_SG_INTR_MASK, events, 0);
 	else
-		xe_mmio_write32(gt, GUC_SG_INTR_MASK.reg, ~events);
+		xe_mmio_write32(gt, GUC_SG_INTR_MASK, ~events);
 }
 
 int xe_guc_enable_communication(struct xe_guc *guc)
@@ -567,7 +567,7 @@ int xe_guc_enable_communication(struct xe_guc *guc)
 
 	guc_enable_irq(guc);
 
-	xe_mmio_rmw32(guc_to_gt(guc), PMINTRMSK.reg,
+	xe_mmio_rmw32(guc_to_gt(guc), PMINTRMSK,
 		      ARAT_EXPIRED_INTRMSK, 0);
 
 	err = xe_guc_ct_enable(&guc->ct);
@@ -620,8 +620,8 @@ int xe_guc_mmio_send_recv(struct xe_guc *guc, const u32 *request,
 	struct xe_device *xe = guc_to_xe(guc);
 	struct xe_gt *gt = guc_to_gt(guc);
 	u32 header, reply;
-	u32 reply_reg = xe_gt_is_media_type(gt) ?
-		MED_VF_SW_FLAG(0).reg : VF_SW_FLAG(0).reg;
+	struct xe_reg reply_reg = xe_gt_is_media_type(gt) ?
+		MED_VF_SW_FLAG(0) : VF_SW_FLAG(0);
 	const u32 LAST_INDEX = VF_SW_FLAG_COUNT;
 	int ret;
 	int i;
@@ -641,14 +641,14 @@ int xe_guc_mmio_send_recv(struct xe_guc *guc, const u32 *request,
 	/* Not in critical data-path, just do if else for GT type */
 	if (xe_gt_is_media_type(gt)) {
 		for (i = 0; i < len; ++i)
-			xe_mmio_write32(gt, MED_VF_SW_FLAG(i).reg,
+			xe_mmio_write32(gt, MED_VF_SW_FLAG(i),
 					request[i]);
-		xe_mmio_read32(gt, MED_VF_SW_FLAG(LAST_INDEX).reg);
+		xe_mmio_read32(gt, MED_VF_SW_FLAG(LAST_INDEX));
 	} else {
 		for (i = 0; i < len; ++i)
-			xe_mmio_write32(gt, VF_SW_FLAG(i).reg,
+			xe_mmio_write32(gt, VF_SW_FLAG(i),
 					request[i]);
-		xe_mmio_read32(gt, VF_SW_FLAG(LAST_INDEX).reg);
+		xe_mmio_read32(gt, VF_SW_FLAG(LAST_INDEX));
 	}
 
 	xe_guc_notify(guc);
@@ -712,9 +712,10 @@ int xe_guc_mmio_send_recv(struct xe_guc *guc, const u32 *request,
 	if (response_buf) {
 		response_buf[0] = header;
 
-		for (i = 1; i < VF_SW_FLAG_COUNT; i++)
-			response_buf[i] =
-				xe_mmio_read32(gt, reply_reg + i * sizeof(u32));
+		for (i = 1; i < VF_SW_FLAG_COUNT; i++) {
+			reply_reg.reg += i * sizeof(u32);
+			response_buf[i] = xe_mmio_read32(gt, reply_reg);
+		}
 	}
 
 	/* Use data from the GuC response as our return value */
@@ -836,7 +837,7 @@ void xe_guc_print_info(struct xe_guc *guc, struct drm_printer *p)
 	if (err)
 		return;
 
-	status = xe_mmio_read32(gt, GUC_STATUS.reg);
+	status = xe_mmio_read32(gt, GUC_STATUS);
 
 	drm_printf(p, "\nGuC status 0x%08x:\n", status);
 	drm_printf(p, "\tBootrom status = 0x%x\n",
@@ -851,7 +852,7 @@ void xe_guc_print_info(struct xe_guc *guc, struct drm_printer *p)
 	drm_puts(p, "\nScratch registers:\n");
 	for (i = 0; i < SOFT_SCRATCH_COUNT; i++) {
 		drm_printf(p, "\t%2d: \t0x%x\n",
-			   i, xe_mmio_read32(gt, SOFT_SCRATCH(i).reg));
+			   i, xe_mmio_read32(gt, SOFT_SCRATCH(i)));
 	}
 
 	xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);

drivers/gpu/drm/xe/xe_guc_ads.c

@@ -428,7 +428,6 @@ static void guc_mmio_regset_write_one(struct xe_guc_ads *ads,
 	struct guc_mmio_reg entry = {
 		.offset = reg.reg,
 		.flags = reg.masked ? GUC_REGSET_MASKED : 0,
-		/* TODO: steering */
 	};
 
 	xe_map_memcpy_to(ads_to_xe(ads), regset_map, n_entry * sizeof(entry),
@@ -551,7 +550,7 @@ static void guc_doorbell_init(struct xe_guc_ads *ads)
 
 	if (GRAPHICS_VER(xe) >= 12 && !IS_DGFX(xe)) {
 		u32 distdbreg =
-			xe_mmio_read32(gt, DIST_DBS_POPULATED.reg);
+			xe_mmio_read32(gt, DIST_DBS_POPULATED);
 
 		ads_blob_write(ads,
 			       system_info.generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_DOORBELL_COUNT_PER_SQIDI],

drivers/gpu/drm/xe/xe_guc_pc.c

@@ -317,9 +317,9 @@ static void mtl_update_rpe_value(struct xe_guc_pc *pc)
 	u32 reg;
 
 	if (xe_gt_is_media_type(gt))
-		reg = xe_mmio_read32(gt, MTL_MPE_FREQUENCY.reg);
+		reg = xe_mmio_read32(gt, MTL_MPE_FREQUENCY);
 	else
-		reg = xe_mmio_read32(gt, MTL_GT_RPE_FREQUENCY.reg);
+		reg = xe_mmio_read32(gt, MTL_GT_RPE_FREQUENCY);
 
 	pc->rpe_freq = REG_FIELD_GET(MTL_RPE_MASK, reg) * GT_FREQUENCY_MULTIPLIER;
 }
@@ -336,9 +336,9 @@ static void tgl_update_rpe_value(struct xe_guc_pc *pc)
 	 * PCODE at a different register
 	 */
 	if (xe->info.platform == XE_PVC)
-		reg = xe_mmio_read32(gt, PVC_RP_STATE_CAP.reg);
+		reg = xe_mmio_read32(gt, PVC_RP_STATE_CAP);
 	else
-		reg = xe_mmio_read32(gt, GEN10_FREQ_INFO_REC.reg);
+		reg = xe_mmio_read32(gt, GEN10_FREQ_INFO_REC);
 
 	pc->rpe_freq = REG_FIELD_GET(RPE_MASK, reg) * GT_FREQUENCY_MULTIPLIER;
 }
@@ -380,10 +380,10 @@ static ssize_t freq_act_show(struct device *dev,
 		goto out;
 
 	if (xe->info.platform == XE_METEORLAKE) {
-		freq = xe_mmio_read32(gt, MTL_MIRROR_TARGET_WP1.reg);
+		freq = xe_mmio_read32(gt, MTL_MIRROR_TARGET_WP1);
 		freq = REG_FIELD_GET(MTL_CAGF_MASK, freq);
 	} else {
-		freq = xe_mmio_read32(gt, GEN12_RPSTAT1.reg);
+		freq = xe_mmio_read32(gt, GEN12_RPSTAT1);
 		freq = REG_FIELD_GET(GEN12_CAGF_MASK, freq);
 	}
 
@@ -413,7 +413,7 @@ static ssize_t freq_cur_show(struct device *dev,
 	if (ret)
 		goto out;
 
-	freq = xe_mmio_read32(gt, RPNSWREQ.reg);
+	freq = xe_mmio_read32(gt, RPNSWREQ);
 
 	freq = REG_FIELD_GET(REQ_RATIO_MASK, freq);
 	ret = sysfs_emit(buf, "%d\n", decode_freq(freq));
@@ -588,7 +588,7 @@ static ssize_t rc_status_show(struct device *dev,
 	u32 reg;
 
 	xe_device_mem_access_get(gt_to_xe(gt));
-	reg = xe_mmio_read32(gt, GT_CORE_STATUS.reg);
+	reg = xe_mmio_read32(gt, GT_CORE_STATUS);
 	xe_device_mem_access_put(gt_to_xe(gt));
 
 	switch (REG_FIELD_GET(RCN_MASK, reg)) {
@@ -615,7 +615,7 @@ static ssize_t rc6_residency_show(struct device *dev,
 	if (ret)
 		goto out;
 
-	reg = xe_mmio_read32(gt, GT_GFX_RC6.reg);
+	reg = xe_mmio_read32(gt, GT_GFX_RC6);
 	ret = sysfs_emit(buff, "%u\n", reg);
 
 	XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
@@ -646,9 +646,9 @@ static void mtl_init_fused_rp_values(struct xe_guc_pc *pc)
 	xe_device_assert_mem_access(pc_to_xe(pc));
 
 	if (xe_gt_is_media_type(gt))
-		reg = xe_mmio_read32(gt, MTL_MEDIAP_STATE_CAP.reg);
+		reg = xe_mmio_read32(gt, MTL_MEDIAP_STATE_CAP);
 	else
-		reg = xe_mmio_read32(gt, MTL_RP_STATE_CAP.reg);
+		reg = xe_mmio_read32(gt, MTL_RP_STATE_CAP);
 	pc->rp0_freq = REG_FIELD_GET(MTL_RP0_CAP_MASK, reg) *
 		GT_FREQUENCY_MULTIPLIER;
 	pc->rpn_freq = REG_FIELD_GET(MTL_RPN_CAP_MASK, reg) *
@@ -664,9 +664,9 @@ static void tgl_init_fused_rp_values(struct xe_guc_pc *pc)
 	xe_device_assert_mem_access(pc_to_xe(pc));
 
 	if (xe->info.platform == XE_PVC)
-		reg = xe_mmio_read32(gt, PVC_RP_STATE_CAP.reg);
+		reg = xe_mmio_read32(gt, PVC_RP_STATE_CAP);
 	else
-		reg = xe_mmio_read32(gt, GEN6_RP_STATE_CAP.reg);
+		reg = xe_mmio_read32(gt, GEN6_RP_STATE_CAP);
 	pc->rp0_freq = REG_FIELD_GET(RP0_MASK, reg) * GT_FREQUENCY_MULTIPLIER;
 	pc->rpn_freq = REG_FIELD_GET(RPN_MASK, reg) * GT_FREQUENCY_MULTIPLIER;
 }
@@ -745,9 +745,9 @@ static int pc_gucrc_disable(struct xe_guc_pc *pc)
 	if (ret)
 		return ret;
 
-	xe_mmio_write32(gt, PG_ENABLE.reg, 0);
-	xe_mmio_write32(gt, RC_CONTROL.reg, 0);
-	xe_mmio_write32(gt, RC_STATE.reg, 0);
+	xe_mmio_write32(gt, PG_ENABLE, 0);
+	xe_mmio_write32(gt, RC_CONTROL, 0);
+	xe_mmio_write32(gt, RC_STATE, 0);
 
 	XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
 	return 0;

drivers/gpu/drm/xe/xe_guc_types.h

@@ -9,6 +9,7 @@
 #include <linux/idr.h>
 #include <linux/xarray.h>
 
+#include "regs/xe_reg_defs.h"
 #include "xe_guc_ads_types.h"
 #include "xe_guc_ct_types.h"
 #include "xe_guc_fwif.h"
@@ -74,7 +75,7 @@ struct xe_guc {
 	/**
 	 * @notify_reg: Register which is written to notify GuC of H2G messages
 	 */
-	u32 notify_reg;
+	struct xe_reg notify_reg;
 	/** @params: Control params for fw initialization */
 	u32 params[GUC_CTL_MAX_DWORDS];
 };

drivers/gpu/drm/xe/xe_huc.c

@@ -84,7 +84,7 @@ int xe_huc_auth(struct xe_huc *huc)
 		goto fail;
 	}
 
-	ret = xe_mmio_wait32(gt, HUC_KERNEL_LOAD_INFO.reg,
+	ret = xe_mmio_wait32(gt, HUC_KERNEL_LOAD_INFO,
 			     HUC_LOAD_SUCCESSFUL,
 			     HUC_LOAD_SUCCESSFUL, 100000, NULL, false);
 	if (ret) {
@@ -126,7 +126,7 @@ void xe_huc_print_info(struct xe_huc *huc, struct drm_printer *p)
 		return;
 
 	drm_printf(p, "\nHuC status: 0x%08x\n",
-		   xe_mmio_read32(gt, HUC_KERNEL_LOAD_INFO.reg));
+		   xe_mmio_read32(gt, HUC_KERNEL_LOAD_INFO));
 
 	xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
 }

drivers/gpu/drm/xe/xe_hw_engine.c

@@ -233,20 +233,25 @@ static void hw_engine_fini(struct drm_device *drm, void *arg)
 	hwe->gt = NULL;
 }
 
-static void hw_engine_mmio_write32(struct xe_hw_engine *hwe, u32 reg, u32 val)
+static void hw_engine_mmio_write32(struct xe_hw_engine *hwe, struct xe_reg reg,
+				   u32 val)
 {
-	XE_BUG_ON(reg & hwe->mmio_base);
+	XE_BUG_ON(reg.reg & hwe->mmio_base);
 	xe_force_wake_assert_held(gt_to_fw(hwe->gt), hwe->domain);
 
-	xe_mmio_write32(hwe->gt, reg + hwe->mmio_base, val);
+	reg.reg += hwe->mmio_base;
+
+	xe_mmio_write32(hwe->gt, reg, val);
 }
 
-static u32 hw_engine_mmio_read32(struct xe_hw_engine *hwe, u32 reg)
+static u32 hw_engine_mmio_read32(struct xe_hw_engine *hwe, struct xe_reg reg)
 {
-	XE_BUG_ON(reg & hwe->mmio_base);
+	XE_BUG_ON(reg.reg & hwe->mmio_base);
 	xe_force_wake_assert_held(gt_to_fw(hwe->gt), hwe->domain);
 
-	return xe_mmio_read32(hwe->gt, reg + hwe->mmio_base);
+	reg.reg += hwe->mmio_base;
+
+	return xe_mmio_read32(hwe->gt, reg);
 }
 
 void xe_hw_engine_enable_ring(struct xe_hw_engine *hwe)
@@ -255,17 +260,17 @@ void xe_hw_engine_enable_ring(struct xe_hw_engine *hwe)
 		xe_hw_engine_mask_per_class(hwe->gt, XE_ENGINE_CLASS_COMPUTE);
 
 	if (hwe->class == XE_ENGINE_CLASS_COMPUTE && ccs_mask)
-		xe_mmio_write32(hwe->gt, RCU_MODE.reg,
+		xe_mmio_write32(hwe->gt, RCU_MODE,
 				_MASKED_BIT_ENABLE(RCU_MODE_CCS_ENABLE));
 
-	hw_engine_mmio_write32(hwe, RING_HWSTAM(0).reg, ~0x0);
-	hw_engine_mmio_write32(hwe, RING_HWS_PGA(0).reg,
+	hw_engine_mmio_write32(hwe, RING_HWSTAM(0), ~0x0);
+	hw_engine_mmio_write32(hwe, RING_HWS_PGA(0),
 			       xe_bo_ggtt_addr(hwe->hwsp));
-	hw_engine_mmio_write32(hwe, RING_MODE(0).reg,
+	hw_engine_mmio_write32(hwe, RING_MODE(0),
 			       _MASKED_BIT_ENABLE(GFX_DISABLE_LEGACY_MODE));
-	hw_engine_mmio_write32(hwe, RING_MI_MODE(0).reg,
+	hw_engine_mmio_write32(hwe, RING_MI_MODE(0),
 			       _MASKED_BIT_DISABLE(STOP_RING));
-	hw_engine_mmio_read32(hwe, RING_MI_MODE(0).reg);
+	hw_engine_mmio_read32(hwe, RING_MI_MODE(0));
 }
 
 void
@@ -443,7 +448,7 @@ static void read_media_fuses(struct xe_gt *gt)
 
 	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);
 
-	media_fuse = xe_mmio_read32(gt, GT_VEBOX_VDBOX_DISABLE.reg);
+	media_fuse = xe_mmio_read32(gt, GT_VEBOX_VDBOX_DISABLE);
 
 	/*
 	 * Pre-Xe_HP platforms had register bits representing absent engines,
@@ -485,7 +490,7 @@ static void read_copy_fuses(struct xe_gt *gt)
 
 	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);
 
-	bcs_mask = xe_mmio_read32(gt, MIRROR_FUSE3.reg);
+	bcs_mask = xe_mmio_read32(gt, MIRROR_FUSE3);
 	bcs_mask = REG_FIELD_GET(MEML3_EN_MASK, bcs_mask);
 
 	/* BCS0 is always present; only BCS1-BCS8 may be fused off */
@@ -582,63 +587,63 @@ void xe_hw_engine_print_state(struct xe_hw_engine *hwe, struct drm_printer *p)
 	drm_printf(p, "\tMMIO base: 0x%08x\n", hwe->mmio_base);
 
 	drm_printf(p, "\tHWSTAM: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_HWSTAM(0).reg));
+		hw_engine_mmio_read32(hwe, RING_HWSTAM(0)));
 	drm_printf(p, "\tRING_HWS_PGA: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_HWS_PGA(0).reg));
+		hw_engine_mmio_read32(hwe, RING_HWS_PGA(0)));
 
 	drm_printf(p, "\tRING_EXECLIST_STATUS_LO: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_EXECLIST_STATUS_LO(0).reg));
+		hw_engine_mmio_read32(hwe, RING_EXECLIST_STATUS_LO(0)));
 	drm_printf(p, "\tRING_EXECLIST_STATUS_HI: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_EXECLIST_STATUS_HI(0).reg));
+		hw_engine_mmio_read32(hwe, RING_EXECLIST_STATUS_HI(0)));
 	drm_printf(p, "\tRING_EXECLIST_SQ_CONTENTS_LO: 0x%08x\n",
 		hw_engine_mmio_read32(hwe,
-					 RING_EXECLIST_SQ_CONTENTS_LO(0).reg));
+					 RING_EXECLIST_SQ_CONTENTS_LO(0)));
 	drm_printf(p, "\tRING_EXECLIST_SQ_CONTENTS_HI: 0x%08x\n",
 		hw_engine_mmio_read32(hwe,
-					 RING_EXECLIST_SQ_CONTENTS_HI(0).reg));
+					 RING_EXECLIST_SQ_CONTENTS_HI(0)));
 	drm_printf(p, "\tRING_EXECLIST_CONTROL: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_EXECLIST_CONTROL(0).reg));
+		hw_engine_mmio_read32(hwe, RING_EXECLIST_CONTROL(0)));
 
 	drm_printf(p, "\tRING_START: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_START(0).reg));
+		hw_engine_mmio_read32(hwe, RING_START(0)));
 	drm_printf(p, "\tRING_HEAD:  0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_HEAD(0).reg) & HEAD_ADDR);
+		hw_engine_mmio_read32(hwe, RING_HEAD(0)) & HEAD_ADDR);
 	drm_printf(p, "\tRING_TAIL:  0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_TAIL(0).reg) & TAIL_ADDR);
+		hw_engine_mmio_read32(hwe, RING_TAIL(0)) & TAIL_ADDR);
 	drm_printf(p, "\tRING_CTL: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_CTL(0).reg));
+		hw_engine_mmio_read32(hwe, RING_CTL(0)));
 	drm_printf(p, "\tRING_MODE: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_MI_MODE(0).reg));
+		hw_engine_mmio_read32(hwe, RING_MI_MODE(0)));
 	drm_printf(p, "\tRING_MODE_GEN7: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_MODE(0).reg));
+		hw_engine_mmio_read32(hwe, RING_MODE(0)));
 
 	drm_printf(p, "\tRING_IMR:   0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_IMR(0).reg));
+		hw_engine_mmio_read32(hwe, RING_IMR(0)));
 	drm_printf(p, "\tRING_ESR:   0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_ESR(0).reg));
+		hw_engine_mmio_read32(hwe, RING_ESR(0)));
 	drm_printf(p, "\tRING_EMR:   0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_EMR(0).reg));
+		hw_engine_mmio_read32(hwe, RING_EMR(0)));
 	drm_printf(p, "\tRING_EIR:   0x%08x\n",
-		hw_engine_mmio_read32(hwe, RING_EIR(0).reg));
+		hw_engine_mmio_read32(hwe, RING_EIR(0)));
 
         drm_printf(p, "\tACTHD:  0x%08x_%08x\n",
-		hw_engine_mmio_read32(hwe, RING_ACTHD_UDW(0).reg),
-		hw_engine_mmio_read32(hwe, RING_ACTHD(0).reg));
+		hw_engine_mmio_read32(hwe, RING_ACTHD_UDW(0)),
+		hw_engine_mmio_read32(hwe, RING_ACTHD(0)));
         drm_printf(p, "\tBBADDR: 0x%08x_%08x\n",
-		hw_engine_mmio_read32(hwe, RING_BBADDR_UDW(0).reg),
-		hw_engine_mmio_read32(hwe, RING_BBADDR(0).reg));
+		hw_engine_mmio_read32(hwe, RING_BBADDR_UDW(0)),
+		hw_engine_mmio_read32(hwe, RING_BBADDR(0)));
         drm_printf(p, "\tDMA_FADDR: 0x%08x_%08x\n",
-		hw_engine_mmio_read32(hwe, RING_DMA_FADD_UDW(0).reg),
-		hw_engine_mmio_read32(hwe, RING_DMA_FADD(0).reg));
+		hw_engine_mmio_read32(hwe, RING_DMA_FADD_UDW(0)),
+		hw_engine_mmio_read32(hwe, RING_DMA_FADD(0)));
 
 	drm_printf(p, "\tIPEIR: 0x%08x\n",
-		hw_engine_mmio_read32(hwe, IPEIR(0).reg));
+		hw_engine_mmio_read32(hwe, IPEIR(0)));
 	drm_printf(p, "\tIPEHR: 0x%08x\n\n",
-		hw_engine_mmio_read32(hwe, IPEHR(0).reg));
+		hw_engine_mmio_read32(hwe, IPEHR(0)));
 
 	if (hwe->class == XE_ENGINE_CLASS_COMPUTE)
 		drm_printf(p, "\tRCU_MODE: 0x%08x\n",
-			xe_mmio_read32(hwe->gt, RCU_MODE.reg));
+			xe_mmio_read32(hwe->gt, RCU_MODE));
 
 }
 

drivers/gpu/drm/xe/xe_mmio.c

@@ -153,13 +153,13 @@ int xe_mmio_total_vram_size(struct xe_device *xe, u64 *vram_size, u64 *usable_si
 	struct xe_gt *gt = xe_device_get_gt(xe, 0);
 	struct pci_dev *pdev = to_pci_dev(xe->drm.dev);
 	int err;
-	u32 reg;
+	u32 reg_val;
 
 	if (!xe->info.has_flat_ccs)  {
 		*vram_size = pci_resource_len(pdev, GEN12_LMEM_BAR);
 		if (usable_size)
 			*usable_size = min(*vram_size,
-					   xe_mmio_read64(gt, GSMBASE.reg));
+					   xe_mmio_read64(gt, GSMBASE));
 		return 0;
 	}
 
@@ -167,11 +167,11 @@ int xe_mmio_total_vram_size(struct xe_device *xe, u64 *vram_size, u64 *usable_si
 	if (err)
 		return err;
 
-	reg = xe_gt_mcr_unicast_read_any(gt, XEHP_TILE0_ADDR_RANGE);
-	*vram_size = (u64)REG_FIELD_GET(GENMASK(14, 8), reg) * SZ_1G;
+	reg_val = xe_gt_mcr_unicast_read_any(gt, XEHP_TILE0_ADDR_RANGE);
+	*vram_size = (u64)REG_FIELD_GET(GENMASK(14, 8), reg_val) * SZ_1G;
 	if (usable_size) {
-		reg = xe_gt_mcr_unicast_read_any(gt, XEHP_FLAT_CCS_BASE_ADDR);
-		*usable_size = (u64)REG_FIELD_GET(GENMASK(31, 8), reg) * SZ_64K;
+		reg_val = xe_gt_mcr_unicast_read_any(gt, XEHP_FLAT_CCS_BASE_ADDR);
+		*usable_size = (u64)REG_FIELD_GET(GENMASK(31, 8), reg_val) * SZ_64K;
 		drm_info(&xe->drm, "vram_size: 0x%llx usable_size: 0x%llx\n",
 			 *vram_size, *usable_size);
 	}
@@ -298,7 +298,7 @@ static void xe_mmio_probe_tiles(struct xe_device *xe)
 	if (xe->info.tile_count == 1)
 		return;
 
-	mtcfg = xe_mmio_read64(gt, XEHP_MTCFG_ADDR.reg);
+	mtcfg = xe_mmio_read64(gt, XEHP_MTCFG_ADDR);
 	adj_tile_count = xe->info.tile_count =
 		REG_FIELD_GET(TILE_COUNT, mtcfg) + 1;
 	if (xe->info.media_verx100 >= 1300)
@@ -374,7 +374,7 @@ int xe_mmio_init(struct xe_device *xe)
 	 * keep the GT powered down; we won't be able to communicate with it
 	 * and we should not continue with driver initialization.
 	 */
-	if (IS_DGFX(xe) && !(xe_mmio_read32(gt, GU_CNTL.reg) & LMEM_INIT)) {
+	if (IS_DGFX(xe) && !(xe_mmio_read32(gt, GU_CNTL) & LMEM_INIT)) {
 		drm_err(&xe->drm, "VRAM not initialized by firmware\n");
 		return -ENODEV;
 	}
@@ -403,6 +403,7 @@ int xe_mmio_ioctl(struct drm_device *dev, void *data,
 	struct xe_device *xe = to_xe_device(dev);
 	struct drm_xe_mmio *args = data;
 	unsigned int bits_flag, bytes;
+	struct xe_reg reg;
 	bool allowed;
 	int ret = 0;
 
@@ -435,6 +436,12 @@ int xe_mmio_ioctl(struct drm_device *dev, void *data,
 	if (XE_IOCTL_ERR(xe, args->addr + bytes > xe->mmio.size))
 		return -EINVAL;
 
+	/*
+	 * TODO: migrate to xe_gt_mcr to lookup the mmio range and handle
+	 * multicast registers. Steering would need uapi extension.
+	 */
+	reg = XE_REG(args->addr);
+
 	xe_force_wake_get(gt_to_fw(&xe->gt[0]), XE_FORCEWAKE_ALL);
 
 	if (args->flags & DRM_XE_MMIO_WRITE) {
@@ -444,10 +451,10 @@ int xe_mmio_ioctl(struct drm_device *dev, void *data,
 				ret = -EINVAL;
 				goto exit;
 			}
-			xe_mmio_write32(to_gt(xe), args->addr, args->value);
+			xe_mmio_write32(to_gt(xe), reg, args->value);
 			break;
 		case DRM_XE_MMIO_64BIT:
-			xe_mmio_write64(to_gt(xe), args->addr, args->value);
+			xe_mmio_write64(to_gt(xe), reg, args->value);
 			break;
 		default:
 			drm_dbg(&xe->drm, "Invalid MMIO bit size");
@@ -462,10 +469,10 @@ int xe_mmio_ioctl(struct drm_device *dev, void *data,
 	if (args->flags & DRM_XE_MMIO_READ) {
 		switch (bits_flag) {
 		case DRM_XE_MMIO_32BIT:
-			args->value = xe_mmio_read32(to_gt(xe), args->addr);
+			args->value = xe_mmio_read32(to_gt(xe), reg);
 			break;
 		case DRM_XE_MMIO_64BIT:
-			args->value = xe_mmio_read64(to_gt(xe), args->addr);
+			args->value = xe_mmio_read64(to_gt(xe), reg);
 			break;
 		default:
 			drm_dbg(&xe->drm, "Invalid MMIO bit size");

drivers/gpu/drm/xe/xe_mmio.h

@@ -9,6 +9,7 @@
 #include <linux/delay.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
 
+#include "regs/xe_reg_defs.h"
 #include "xe_gt_types.h"
 
 struct drm_device;
@@ -17,32 +18,32 @@ struct xe_device;
 
 int xe_mmio_init(struct xe_device *xe);
 
-static inline u8 xe_mmio_read8(struct xe_gt *gt, u32 reg)
+static inline u8 xe_mmio_read8(struct xe_gt *gt, struct xe_reg reg)
 {
-	if (reg < gt->mmio.adj_limit)
-		reg += gt->mmio.adj_offset;
+	if (reg.reg < gt->mmio.adj_limit)
+		reg.reg += gt->mmio.adj_offset;
 
-	return readb(gt->mmio.regs + reg);
+	return readb(gt->mmio.regs + reg.reg);
 }
 
 static inline void xe_mmio_write32(struct xe_gt *gt,
-				   u32 reg, u32 val)
+				   struct xe_reg reg, u32 val)
 {
-	if (reg < gt->mmio.adj_limit)
-		reg += gt->mmio.adj_offset;
+	if (reg.reg < gt->mmio.adj_limit)
+		reg.reg += gt->mmio.adj_offset;
 
-	writel(val, gt->mmio.regs + reg);
+	writel(val, gt->mmio.regs + reg.reg);
 }
 
-static inline u32 xe_mmio_read32(struct xe_gt *gt, u32 reg)
+static inline u32 xe_mmio_read32(struct xe_gt *gt, struct xe_reg reg)
 {
-	if (reg < gt->mmio.adj_limit)
-		reg += gt->mmio.adj_offset;
+	if (reg.reg < gt->mmio.adj_limit)
+		reg.reg += gt->mmio.adj_offset;
 
-	return readl(gt->mmio.regs + reg);
+	return readl(gt->mmio.regs + reg.reg);
 }
 
-static inline u32 xe_mmio_rmw32(struct xe_gt *gt, u32 reg, u32 clr,
+static inline u32 xe_mmio_rmw32(struct xe_gt *gt, struct xe_reg reg, u32 clr,
 				u32 set)
 {
 	u32 old, reg_val;
@@ -55,24 +56,24 @@ static inline u32 xe_mmio_rmw32(struct xe_gt *gt, u32 reg, u32 clr,
 }
 
 static inline void xe_mmio_write64(struct xe_gt *gt,
-				   u32 reg, u64 val)
+				   struct xe_reg reg, u64 val)
 {
-	if (reg < gt->mmio.adj_limit)
-		reg += gt->mmio.adj_offset;
+	if (reg.reg < gt->mmio.adj_limit)
+		reg.reg += gt->mmio.adj_offset;
 
-	writeq(val, gt->mmio.regs + reg);
+	writeq(val, gt->mmio.regs + reg.reg);
 }
 
-static inline u64 xe_mmio_read64(struct xe_gt *gt, u32 reg)
+static inline u64 xe_mmio_read64(struct xe_gt *gt, struct xe_reg reg)
 {
-	if (reg < gt->mmio.adj_limit)
-		reg += gt->mmio.adj_offset;
+	if (reg.reg < gt->mmio.adj_limit)
+		reg.reg += gt->mmio.adj_offset;
 
-	return readq(gt->mmio.regs + reg);
+	return readq(gt->mmio.regs + reg.reg);
 }
 
 static inline int xe_mmio_write32_and_verify(struct xe_gt *gt,
-					     u32 reg, u32 val,
+					     struct xe_reg reg, u32 val,
 					     u32 mask, u32 eval)
 {
 	u32 reg_val;
@@ -83,8 +84,9 @@ static inline int xe_mmio_write32_and_verify(struct xe_gt *gt,
 	return (reg_val & mask) != eval ? -EINVAL : 0;
 }
 
-static inline int xe_mmio_wait32(struct xe_gt *gt, u32 reg, u32 val, u32 mask,
-				 u32 timeout_us, u32 *out_val, bool atomic)
+static inline int xe_mmio_wait32(struct xe_gt *gt, struct xe_reg reg, u32 val,
+				 u32 mask, u32 timeout_us, u32 *out_val,
+				 bool atomic)
 {
 	ktime_t cur = ktime_get_raw();
 	const ktime_t end = ktime_add_us(cur, timeout_us);
@@ -122,9 +124,10 @@ static inline int xe_mmio_wait32(struct xe_gt *gt, u32 reg, u32 val, u32 mask,
 int xe_mmio_ioctl(struct drm_device *dev, void *data,
 		  struct drm_file *file);
 
-static inline bool xe_mmio_in_range(const struct xe_mmio_range *range, u32 reg)
+static inline bool xe_mmio_in_range(const struct xe_mmio_range *range,
+				    struct xe_reg reg)
 {
-	return range && reg >= range->start && reg <= range->end;
+	return range && reg.reg >= range->start && reg.reg <= range->end;
 }
 
 int xe_mmio_probe_vram(struct xe_device *xe);

drivers/gpu/drm/xe/xe_mocs.c

@@ -477,8 +477,10 @@ static void __init_mocs_table(struct xe_gt *gt,
 	for (i = 0;
 	     i < info->n_entries ? (mocs = get_entry_control(info, i)), 1 : 0;
 	     i++) {
-		mocs_dbg(&gt->xe->drm, "%d 0x%x 0x%x\n", i, XE_REG(addr + i * 4).reg, mocs);
-		xe_mmio_write32(gt, XE_REG(addr + i * 4).reg, mocs);
+		struct xe_reg reg = XE_REG(addr + i * 4);
+
+		mocs_dbg(&gt->xe->drm, "%d 0x%x 0x%x\n", i, reg.reg, mocs);
+		xe_mmio_write32(gt, reg, mocs);
 	}
 }
 
@@ -514,7 +516,7 @@ static void init_l3cc_table(struct xe_gt *gt,
 	     i++) {
 		mocs_dbg(&gt->xe->drm, "%d 0x%x 0x%x\n", i, LNCFCMOCS(i).reg,
 			 l3cc);
-		xe_mmio_write32(gt, LNCFCMOCS(i).reg, l3cc);
+		xe_mmio_write32(gt, LNCFCMOCS(i), l3cc);
 	}
 }
 

drivers/gpu/drm/xe/xe_pat.c

@@ -64,14 +64,20 @@ static const u32 mtl_pat_table[] = {
 
 static void program_pat(struct xe_gt *gt, const u32 table[], int n_entries)
 {
-	for (int i = 0; i < n_entries; i++)
-		xe_mmio_write32(gt, _PAT_INDEX(i), table[i]);
+	for (int i = 0; i < n_entries; i++) {
+		struct xe_reg reg = XE_REG(_PAT_INDEX(i));
+
+		xe_mmio_write32(gt, reg, table[i]);
+	}
 }
 
 static void program_pat_mcr(struct xe_gt *gt, const u32 table[], int n_entries)
 {
-	for (int i = 0; i < n_entries; i++)
-		xe_gt_mcr_multicast_write(gt, XE_REG_MCR(_PAT_INDEX(i)), table[i]);
+	for (int i = 0; i < n_entries; i++) {
+		struct xe_reg_mcr reg_mcr = XE_REG_MCR(_PAT_INDEX(i));
+
+		xe_gt_mcr_multicast_write(gt, reg_mcr, table[i]);
+	}
 }
 
 void xe_pat_init(struct xe_gt *gt)

drivers/gpu/drm/xe/xe_pcode.c

@@ -43,7 +43,7 @@ static int pcode_mailbox_status(struct xe_gt *gt)
 
 	lockdep_assert_held(&gt->pcode.lock);
 
-	err = xe_mmio_read32(gt, PCODE_MAILBOX.reg) & PCODE_ERROR_MASK;
+	err = xe_mmio_read32(gt, PCODE_MAILBOX) & PCODE_ERROR_MASK;
 	if (err) {
 		drm_err(&gt_to_xe(gt)->drm, "PCODE Mailbox failed: %d %s", err,
 			err_decode[err].str ?: "Unknown");
@@ -60,22 +60,22 @@ static int pcode_mailbox_rw(struct xe_gt *gt, u32 mbox, u32 *data0, u32 *data1,
 	int err;
 	lockdep_assert_held(&gt->pcode.lock);
 
-	if ((xe_mmio_read32(gt, PCODE_MAILBOX.reg) & PCODE_READY) != 0)
+	if ((xe_mmio_read32(gt, PCODE_MAILBOX) & PCODE_READY) != 0)
 		return -EAGAIN;
 
-	xe_mmio_write32(gt, PCODE_DATA0.reg, *data0);
-	xe_mmio_write32(gt, PCODE_DATA1.reg, data1 ? *data1 : 0);
-	xe_mmio_write32(gt, PCODE_MAILBOX.reg, PCODE_READY | mbox);
+	xe_mmio_write32(gt, PCODE_DATA0, *data0);
+	xe_mmio_write32(gt, PCODE_DATA1, data1 ? *data1 : 0);
+	xe_mmio_write32(gt, PCODE_MAILBOX, PCODE_READY | mbox);
 
-	err = xe_mmio_wait32(gt, PCODE_MAILBOX.reg, 0, PCODE_READY,
+	err = xe_mmio_wait32(gt, PCODE_MAILBOX, 0, PCODE_READY,
 			     timeout_ms * 1000, NULL, atomic);
 	if (err)
 		return err;
 
 	if (return_data) {
-		*data0 = xe_mmio_read32(gt, PCODE_DATA0.reg);
+		*data0 = xe_mmio_read32(gt, PCODE_DATA0);
 		if (data1)
-			*data1 = xe_mmio_read32(gt, PCODE_DATA1.reg);
+			*data1 = xe_mmio_read32(gt, PCODE_DATA1);
 	}
 
 	return pcode_mailbox_status(gt);

drivers/gpu/drm/xe/xe_reg_sr.c

@@ -161,7 +161,7 @@ static void apply_one_mmio(struct xe_gt *gt, struct xe_reg_sr_entry *entry)
 	else if (entry->clr_bits + 1)
 		val = (reg.mcr ?
 		       xe_gt_mcr_unicast_read_any(gt, reg_mcr) :
-		       xe_mmio_read32(gt, reg.reg)) & (~entry->clr_bits);
+		       xe_mmio_read32(gt, reg)) & (~entry->clr_bits);
 	else
 		val = 0;
 
@@ -177,7 +177,7 @@ static void apply_one_mmio(struct xe_gt *gt, struct xe_reg_sr_entry *entry)
 	if (entry->reg.mcr)
 		xe_gt_mcr_multicast_write(gt, reg_mcr, val);
 	else
-		xe_mmio_write32(gt, reg.reg, val);
+		xe_mmio_write32(gt, reg, val);
 }
 
 void xe_reg_sr_apply_mmio(struct xe_reg_sr *sr, struct xe_gt *gt)
@@ -230,15 +230,17 @@ void xe_reg_sr_apply_whitelist(struct xe_reg_sr *sr, u32 mmio_base,
 	p = drm_debug_printer(KBUILD_MODNAME);
 	xa_for_each(&sr->xa, reg, entry) {
 		xe_reg_whitelist_print_entry(&p, 0, reg, entry);
-		xe_mmio_write32(gt, RING_FORCE_TO_NONPRIV(mmio_base, slot).reg,
+		xe_mmio_write32(gt, RING_FORCE_TO_NONPRIV(mmio_base, slot),
 				reg | entry->set_bits);
 		slot++;
 	}
 
 	/* And clear the rest just in case of garbage */
-	for (; slot < RING_MAX_NONPRIV_SLOTS; slot++)
-		xe_mmio_write32(gt, RING_FORCE_TO_NONPRIV(mmio_base, slot).reg,
-				RING_NOPID(mmio_base).reg);
+	for (; slot < RING_MAX_NONPRIV_SLOTS; slot++) {
+		u32 addr = RING_NOPID(mmio_base).reg;
+
+		xe_mmio_write32(gt, RING_FORCE_TO_NONPRIV(mmio_base, slot), addr);
+	}
 
 	err = xe_force_wake_put(&gt->mmio.fw, XE_FORCEWAKE_ALL);
 	XE_WARN_ON(err);

drivers/gpu/drm/xe/xe_ring_ops.c

@@ -44,10 +44,11 @@ static u32 preparser_disable(bool state)
 	return MI_ARB_CHECK | BIT(8) | state;
 }
 
-static int emit_aux_table_inv(struct xe_gt *gt, u32 addr, u32 *dw, int i)
+static int emit_aux_table_inv(struct xe_gt *gt, struct xe_reg reg,
+			      u32 *dw, int i)
 {
 	dw[i++] = MI_LOAD_REGISTER_IMM(1) | MI_LRI_MMIO_REMAP_EN;
-	dw[i++] = addr + gt->mmio.adj_offset;
+	dw[i++] = reg.reg + gt->mmio.adj_offset;
 	dw[i++] = AUX_INV;
 	dw[i++] = MI_NOOP;
 
@@ -203,9 +204,9 @@ static void __emit_job_gen12_video(struct xe_sched_job *job, struct xe_lrc *lrc,
 	/* hsdes: 1809175790 */
 	if (!xe->info.has_flat_ccs) {
 		if (decode)
-			i = emit_aux_table_inv(gt, VD0_AUX_INV.reg, dw, i);
+			i = emit_aux_table_inv(gt, VD0_AUX_INV, dw, i);
 		else
-			i = emit_aux_table_inv(gt, VE0_AUX_INV.reg, dw, i);
+			i = emit_aux_table_inv(gt, VE0_AUX_INV, dw, i);
 	}
 	dw[i++] = preparser_disable(false);
 
@@ -248,7 +249,7 @@ static void __emit_job_gen12_render_compute(struct xe_sched_job *job,
 
 	/* hsdes: 1809175790 */
 	if (!xe->info.has_flat_ccs)
-		i = emit_aux_table_inv(gt, CCS_AUX_INV.reg, dw, i);
+		i = emit_aux_table_inv(gt, CCS_AUX_INV, dw, i);
 
 	dw[i++] = preparser_disable(false);
 

drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c

@@ -65,7 +65,7 @@ static s64 detect_bar2_dgfx(struct xe_device *xe, struct xe_ttm_stolen_mgr *mgr)
 	}
 
 	/* Use DSM base address instead for stolen memory */
-	mgr->stolen_base = xe_mmio_read64(gt, DSMBASE.reg) & BDSM_MASK;
+	mgr->stolen_base = xe_mmio_read64(gt, DSMBASE) & BDSM_MASK;
 	if (drm_WARN_ON(&xe->drm, vram_size < mgr->stolen_base))
 		return 0;
 
@@ -88,7 +88,7 @@ static u32 detect_bar2_integrated(struct xe_device *xe, struct xe_ttm_stolen_mgr
 	u32 stolen_size;
 	u32 ggc, gms;
 
-	ggc = xe_mmio_read32(to_gt(xe), GGC.reg);
+	ggc = xe_mmio_read32(to_gt(xe), GGC);
 
 	/* check GGMS, should be fixed 0x3 (8MB) */
 	if (drm_WARN_ON(&xe->drm, (ggc & GGMS_MASK) != GGMS_MASK))

drivers/gpu/drm/xe/xe_uc_fw.c

@@ -462,33 +462,33 @@ static int uc_fw_xfer(struct xe_uc_fw *uc_fw, u32 offset, u32 dma_flags)
 
 	/* Set the source address for the uCode */
 	src_offset = uc_fw_ggtt_offset(uc_fw);
-	xe_mmio_write32(gt, DMA_ADDR_0_LOW.reg, lower_32_bits(src_offset));
-	xe_mmio_write32(gt, DMA_ADDR_0_HIGH.reg, upper_32_bits(src_offset));
+	xe_mmio_write32(gt, DMA_ADDR_0_LOW, lower_32_bits(src_offset));
+	xe_mmio_write32(gt, DMA_ADDR_0_HIGH, upper_32_bits(src_offset));
 
 	/* Set the DMA destination */
-	xe_mmio_write32(gt, DMA_ADDR_1_LOW.reg, offset);
-	xe_mmio_write32(gt, DMA_ADDR_1_HIGH.reg, DMA_ADDRESS_SPACE_WOPCM);
+	xe_mmio_write32(gt, DMA_ADDR_1_LOW, offset);
+	xe_mmio_write32(gt, DMA_ADDR_1_HIGH, DMA_ADDRESS_SPACE_WOPCM);
 
 	/*
 	 * Set the transfer size. The header plus uCode will be copied to WOPCM
 	 * via DMA, excluding any other components
 	 */
-	xe_mmio_write32(gt, DMA_COPY_SIZE.reg,
+	xe_mmio_write32(gt, DMA_COPY_SIZE,
 			sizeof(struct uc_css_header) + uc_fw->ucode_size);
 
 	/* Start the DMA */
-	xe_mmio_write32(gt, DMA_CTRL.reg,
+	xe_mmio_write32(gt, DMA_CTRL,
 			_MASKED_BIT_ENABLE(dma_flags | START_DMA));
 
 	/* Wait for DMA to finish */
-	ret = xe_mmio_wait32(gt, DMA_CTRL.reg, 0, START_DMA, 100000, &dma_ctrl,
+	ret = xe_mmio_wait32(gt, DMA_CTRL, 0, START_DMA, 100000, &dma_ctrl,
 			     false);
 	if (ret)
 		drm_err(&xe->drm, "DMA for %s fw failed, DMA_CTRL=%u\n",
 			xe_uc_fw_type_repr(uc_fw->type), dma_ctrl);
 
 	/* Disable the bits once DMA is over */
-	xe_mmio_write32(gt, DMA_CTRL.reg, _MASKED_BIT_DISABLE(dma_flags));
+	xe_mmio_write32(gt, DMA_CTRL, _MASKED_BIT_DISABLE(dma_flags));
 
 	return ret;
 }

drivers/gpu/drm/xe/xe_wopcm.c

@@ -124,8 +124,8 @@ static bool __check_layout(struct xe_device *xe, u32 wopcm_size,
 static bool __wopcm_regs_locked(struct xe_gt *gt,
 				u32 *guc_wopcm_base, u32 *guc_wopcm_size)
 {
-	u32 reg_base = xe_mmio_read32(gt, DMA_GUC_WOPCM_OFFSET.reg);
-	u32 reg_size = xe_mmio_read32(gt, GUC_WOPCM_SIZE.reg);
+	u32 reg_base = xe_mmio_read32(gt, DMA_GUC_WOPCM_OFFSET);
+	u32 reg_size = xe_mmio_read32(gt, GUC_WOPCM_SIZE);
 
 	if (!(reg_size & GUC_WOPCM_SIZE_LOCKED) ||
 	    !(reg_base & GUC_WOPCM_OFFSET_VALID))
@@ -152,13 +152,13 @@ static int __wopcm_init_regs(struct xe_device *xe, struct xe_gt *gt,
 	XE_BUG_ON(size & ~GUC_WOPCM_SIZE_MASK);
 
 	mask = GUC_WOPCM_SIZE_MASK | GUC_WOPCM_SIZE_LOCKED;
-	err = xe_mmio_write32_and_verify(gt, GUC_WOPCM_SIZE.reg, size, mask,
+	err = xe_mmio_write32_and_verify(gt, GUC_WOPCM_SIZE, size, mask,
 					 size | GUC_WOPCM_SIZE_LOCKED);
 	if (err)
 		goto err_out;
 
 	mask = GUC_WOPCM_OFFSET_MASK | GUC_WOPCM_OFFSET_VALID | huc_agent;
-	err = xe_mmio_write32_and_verify(gt, DMA_GUC_WOPCM_OFFSET.reg,
+	err = xe_mmio_write32_and_verify(gt, DMA_GUC_WOPCM_OFFSET,
 					 base | huc_agent, mask,
 					 base | huc_agent |
 					 GUC_WOPCM_OFFSET_VALID);
@@ -171,10 +171,10 @@ static int __wopcm_init_regs(struct xe_device *xe, struct xe_gt *gt,
 	drm_notice(&xe->drm, "Failed to init uC WOPCM registers!\n");
 	drm_notice(&xe->drm, "%s(%#x)=%#x\n", "DMA_GUC_WOPCM_OFFSET",
 		   DMA_GUC_WOPCM_OFFSET.reg,
-		   xe_mmio_read32(gt, DMA_GUC_WOPCM_OFFSET.reg));
+		   xe_mmio_read32(gt, DMA_GUC_WOPCM_OFFSET));
 	drm_notice(&xe->drm, "%s(%#x)=%#x\n", "GUC_WOPCM_SIZE",
 		   GUC_WOPCM_SIZE.reg,
-		   xe_mmio_read32(gt, GUC_WOPCM_SIZE.reg));
+		   xe_mmio_read32(gt, GUC_WOPCM_SIZE));
 
 	return err;
 }