drm/xe/gsc: enable pvc support

Configure and enable PVC HECI GSC support.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/regs/xe_regs.h

@@ -35,6 +35,7 @@
 #define XEHPC_BCS8_RING_BASE			0x3ee000
 
 #define DG1_GSC_HECI2_BASE                      0x00259000
+#define PVC_GSC_HECI2_BASE                      0x00285000
 #define DG2_GSC_HECI2_BASE                      0x00374000
 
 #define GSCCS_RING_BASE				0x11a000

drivers/gpu/drm/xe/xe_heci_gsc.c

@@ -70,6 +70,13 @@ static const struct heci_gsc_def heci_gsc_def_dg2 = {
 	.bar_size = GSC_BAR_LENGTH,
 };
 
+static const struct heci_gsc_def heci_gsc_def_pvc = {
+	.name = "mei-gscfi",
+	.bar = PVC_GSC_HECI2_BASE,
+	.bar_size = GSC_BAR_LENGTH,
+	.slow_firmware = true,
+};
+
 static void heci_gsc_release_dev(struct device *dev)
 {
 	struct auxiliary_device *aux_dev = to_auxiliary_dev(dev);
@@ -172,7 +179,9 @@ void xe_heci_gsc_init(struct xe_device *xe)
 
 	heci_gsc->irq = -1;
 
-	if (xe->info.platform == XE_DG2) {
+	if (xe->info.platform == XE_PVC) {
+		def = &heci_gsc_def_pvc;
+	} else if (xe->info.platform == XE_DG2) {
 		def = &heci_gsc_def_dg2;
 	} else if (xe->info.platform == XE_DG1) {
 		def = &heci_gsc_def_dg1;

drivers/gpu/drm/xe/xe_pci.c

@@ -301,6 +301,7 @@ static const __maybe_unused struct xe_device_desc pvc_desc = {
 	DGFX_FEATURES,
 	PLATFORM(XE_PVC),
 	.require_force_probe = true,
+	.has_heci_gscfi = 1,
 };
 
 static const struct xe_device_desc mtl_desc = {