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drm/i915/xelpmp: Add multicast steering for media GT

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MTL's media IP (Xe_LPM+) 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@intel.com>
Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221014230239.1023689-15-matthew.d.roper@intel.com
This commit is contained in:
Matt Roper 2022-10-14 16:02:39 -07:00
parent f32898c94a
commit a7ec65fc7e
3 changed files with 32 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/i915/gt/intel_gt_mcr.c
View File

@ -42,6 +42,7 @@ static const char * const intel_steering_types[] = {
"LNCF",
"GAM",
"DSS",
"OADDRM",
"INSTANCE 0",
};
@ -129,6 +130,11 @@ static const struct intel_mmio_range xelpg_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 +157,9 @@ 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));
@ -514,6 +521,13 @@ 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;

1
drivers/gpu/drm/i915/gt/intel_gt_types.h
View File

@ -61,6 +61,7 @@ enum intel_steering_type {
LNCF,
GAM,
DSS,
OADDRM,
/*
* On some platforms there are multiple types of MCR registers that

17
drivers/gpu/drm/i915/gt/intel_workarounds.c
View File

@ -1598,14 +1598,27 @@ xelpg_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
debug_dump_steering(gt);
}
static void
xelpmp_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
{
/* FIXME: Actual workarounds will be added in future patch(es) */
debug_dump_steering(gt);
}
static void
gt_init_workarounds(struct intel_gt *gt, struct i915_wa_list *wal)
{
struct drm_i915_private *i915 = gt->i915;
/* FIXME: Media GT handling will be added in an upcoming patch */
if (gt->type == GT_MEDIA)
if (gt->type == GT_MEDIA) {
if (MEDIA_VER(i915) >= 13)
xelpmp_gt_workarounds_init(gt, wal);
else
MISSING_CASE(MEDIA_VER(i915));
return;
}
if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
xelpg_gt_workarounds_init(gt, wal);