MTL's media GT only has a single type of steering ("OAADDRM") which
selects between media slice 0 and media slice 1. We'll always steer to
media slice 0 unless it is fused off (which is the case when VD0, VE0,
and SFC0 are all reported as unavailable).
Bspec: 67789
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_gt_mcr.c | 19 +++++++++++++++++--
drivers/gpu/drm/i915/gt/intel_gt_types.h | 1 +
drivers/gpu/drm/i915/gt/intel_workarounds.c | 18 +++++++++++++++++-
3 files changed, 35 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_mcr.c b/drivers/gpu/drm/i915/gt/intel_gt_mcr.c
index a1fa71b47831..a580723bdd04 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_mcr.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_mcr.c
@@ -42,6 +42,7 @@ static const char * const intel_steering_types[] = {
"LNCF",
"GAM",
"DSS",
+ "OADDRM",
"INSTANCE 0",
};
@@ -129,6 +130,12 @@ static const struct intel_mmio_range mtl3d_dss_steering_table[] = {
{ 0x00DE80, 0x00E8FF }, /* DSS (0xE000-0xE0FF reserved) */
};
+static const struct intel_mmio_range xelpmp_oaddrm_steering_table[] = {
+ { 0x393200, 0x39323F },
+ { 0x393400, 0x3934FF },
+};
+
+
void intel_gt_mcr_init(struct intel_gt *gt)
{
struct drm_i915_private *i915 = gt->i915;
@@ -151,8 +158,9 @@ void intel_gt_mcr_init(struct intel_gt *gt)
drm_warn(&i915->drm, "mslice mask all zero!\n");
}
- if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70) &&
- gt->type == GT_PRIMARY) {
+ if (MEDIA_VER(i915) >= 13 && gt->type == GT_MEDIA) {
+ gt->steering_table[OADDRM] = xelpmp_oaddrm_steering_table;
+ } else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70)) {
fuse = REG_FIELD_GET(GT_L3_EXC_MASK,
intel_uncore_read(gt->uncore, XEHP_FUSE4));
@@ -479,6 +487,13 @@ static void get_nonterminated_steering(struct intel_gt *gt,
*group = 0;
*instance = 0;
break;
+ case OADDRM:
+ if ((VDBOX_MASK(gt) | VEBOX_MASK(gt) | gt->info.sfc_mask) & BIT(0))
+ *group = 0;
+ else
+ *group = 1;
+ *instance = 0;
+ break;
default:
MISSING_CASE(type);
*group = 0;
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index 77ecbd6be331..5d049e0c66f5 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -61,6 +61,7 @@ enum intel_steering_type {
LNCF,
GAM,
DSS,
+ OADDRM,
/*
* On some platforms there are multiple types of MCR registers that
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 9be048da7fb3..744d83e5bb1f 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1595,12 +1595,28 @@ mtl_3d_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
}
}
+static void
+mtl_media_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
+{
+ /*
+ * Unlike older platforms, we no longer setup implicit steering here;
+ * all MCR accesses are explicitly steered.
+ */
+ if (drm_debug_enabled(DRM_UT_DRIVER)) {
+ struct drm_printer p = drm_debug_printer("MCR Steering:");
+
+ intel_gt_mcr_report_steering(&p, gt, false);
+ }
+}
+
static void
gt_init_workarounds(struct intel_gt *gt, struct i915_wa_list *wal)
{
struct drm_i915_private *i915 = gt->i915;
- if (IS_METEORLAKE(i915) && gt->type == GT_PRIMARY)
+ if (IS_METEORLAKE(i915) && gt->type == GT_MEDIA)
+ mtl_media_gt_workarounds_init(gt, wal);
+ else if (IS_METEORLAKE(i915) && gt->type == GT_PRIMARY)
mtl_3d_gt_workarounds_init(gt, wal);
else if (IS_PONTEVECCHIO(i915))
pvc_gt_workarounds_init(gt, wal);
--
2.37.3
