drm/xe/xe3lpm: Add new "instance0" steering table

MCR steering on Xe3 media IP is almost the same as it was on Xe2, except
for one new range (0x38D0D0 - 0x38D0FF) which has changed to an MCR
"MEDIAINF" range on Xe3.  Since we can always steer to grpid /
instanceid 0 for MEDIAINF ranges, define a new "INSTANCE0" steering
table for Xe3 media.  Xe3 can continue to use the same OADDRM/GPMXMT
table as Xe2.

v2: Merge continuous entries 38D0D0 - 38F0FF

Bspec: 74298
Signed-off-by: Matt Roper <[email protected]>
Signed-off-by: Matt Atwood <[email protected]>
Reviewed-by: Gustavo Sousa <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: mattrope

drivers/gpu/drm/xe/xe_gt_mcr.c

@@ -237,6 +237,17 @@ static const struct xe_mmio_range xe2lpm_instance0_steering_table[] = {
 	{},
 };
 
+static const struct xe_mmio_range xe3lpm_instance0_steering_table[] = {
+	{ 0x384000, 0x3847DF },         /* GAM, rsvd, GAM */
+	{ 0x384900, 0x384AFF },         /* GAM */
+	{ 0x389560, 0x3895FF },         /* MEDIAINF */
+	{ 0x38B600, 0x38B8FF },         /* L3BANK */
+	{ 0x38C800, 0x38D07F },         /* GAM, MEDIAINF */
+	{ 0x38D0D0, 0x38F0FF },		/* MEDIAINF, GAM */
+	{ 0x393C00, 0x393C7F },         /* MEDIAINF */
+	{},
+};
+
 static void init_steering_l3bank(struct xe_gt *gt)
 {
 	struct xe_mmio *mmio = &gt->mmio;
@@ -441,7 +452,10 @@ void xe_gt_mcr_init(struct xe_gt *gt)
 	if (gt->info.type == XE_GT_TYPE_MEDIA) {
 		drm_WARN_ON(&xe->drm, MEDIA_VER(xe) < 13);
 
-		if (MEDIA_VERx100(xe) >= 1301) {
+		if (MEDIA_VER(xe) >= 30) {
+			gt->steering[OADDRM].ranges = xe2lpm_gpmxmt_steering_table;
+			gt->steering[INSTANCE0].ranges = xe3lpm_instance0_steering_table;
+		} else if (MEDIA_VERx100(xe) >= 1301) {
 			gt->steering[OADDRM].ranges = xe2lpm_gpmxmt_steering_table;
 			gt->steering[INSTANCE0].ranges = xe2lpm_instance0_steering_table;
 		} else {