On Thu, Jul 29, 2021 at 09:59:54AM -0700, Matt Roper wrote:
DG2's replicated register ranges are almost the same at XeHP SDV with
the exception of one LNCF sub-range that switches to gslice steering.
We can re-use the XeHP SDV mslice steering table and just provide a
DG2-specific LNCF steering table.
Bspec: 66534
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_gt.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 8e13bfc81634..1971e34da254 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -103,6 +103,12 @@ static const struct intel_mmio_range xehpsdv_lncf_steering_table[] = {
{},
};
+static const struct intel_mmio_range dg2_lncf_steering_table[] = {
+ { 0x00B000, 0x00B0FF },
+ { 0x00D880, 0x00D8FF },
+ {},
+};
+
static u16 slicemask(struct intel_gt *gt, int count)
{
u64 dss_mask = intel_sseu_get_subslices(>->info.sseu, 0);
@@ -129,7 +135,10 @@ int intel_gt_init_mmio(struct intel_gt *gt)
(intel_uncore_read(gt->uncore, GEN10_MIRROR_FUSE3) &
GEN12_MEML3_EN_MASK);
- if (IS_XEHPSDV(i915)) {
+ if (IS_DG2(i915)) {
+ gt->steering_table[MSLICE] = xehpsdv_mslice_steering_table;
a title "Update steering tables" would be more appropriate as this is
also setting the mslice table, even if just re-using from xehpsdv.
Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Lucas De Marchi
+ gt->steering_table[LNCF] = dg2_lncf_steering_table;
+ } else if (IS_XEHPSDV(i915)) {
gt->steering_table[MSLICE] = xehpsdv_mslice_steering_table;
gt->steering_table[LNCF] = xehpsdv_lncf_steering_table;
} else if (GRAPHICS_VER(i915) >= 11 &&
--
2.25.4
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