drm/xe/gt: Convert register access to use xe_mmio

Stop using GT pointers for register access.

Reviewed-by: Rodrigo Vivi <[e-mail]>
Signed-off-by: Matt Roper <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/xe/xe_gt.c

···
 		return;
 
 	if (!xe_gt_is_media_type(gt)) {
-		xe_mmio_write32(gt, SCRATCH1LPFC, EN_L3_RW_CCS_CACHE_FLUSH);
+		xe_mmio_write32(&gt->mmio, SCRATCH1LPFC, EN_L3_RW_CCS_CACHE_FLUSH);
 		reg = xe_gt_mcr_unicast_read_any(gt, XE2_GAMREQSTRM_CTRL);
 		reg |= CG_DIS_CNTLBUS;
 		xe_gt_mcr_multicast_write(gt, XE2_GAMREQSTRM_CTRL, reg);
···
 			else if (entry->clr_bits + 1)
 				val = (reg.mcr ?
 				       xe_gt_mcr_unicast_read_any(gt, reg_mcr) :
-				       xe_mmio_read32(gt, reg)) & (~entry->clr_bits);
+				       xe_mmio_read32(&gt->mmio, reg)) & (~entry->clr_bits);
 			else
 				val = 0;
 
···
 	 * Stash hardware-reported version.  Since this register does not exist
 	 * on pre-MTL platforms, reading it there will (correctly) return 0.
 	 */
-	gt->info.gmdid = xe_mmio_read32(gt, GMD_ID);
+	gt->info.gmdid = xe_mmio_read32(&gt->mmio, GMD_ID);
 
 	err = xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
 	XE_WARN_ON(err);
···
 
 	xe_gsc_wa_14015076503(gt, true);
 
-	xe_mmio_write32(gt, GDRST, GRDOM_FULL);
-	err = xe_mmio_wait32(gt, GDRST, GRDOM_FULL, 0, 5000, NULL, false);
+	xe_mmio_write32(&gt->mmio, GDRST, GRDOM_FULL);
+	err = xe_mmio_wait32(&gt->mmio, GDRST, GRDOM_FULL, 0, 5000, NULL, false);
 	if (err)
 		xe_gt_err(gt, "failed to clear GRDOM_FULL (%pe)\n",
 			  ERR_PTR(err));