drm/i915/xehpsdv: Define steering tables

Define and initialize the MMIO ranges for which XeHP SDV requires MSLICE
and LNCF steering.

Bspec: 66534
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210729170008.2836648-3-matthew.d.roper@intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 3bd1a31..93bfec4 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -89,6 +89,20 @@ static const struct intel_mmio_range icl_l3bank_steering_table[] = {
        {},
 };
 
+static const struct intel_mmio_range xehpsdv_mslice_steering_table[] = {
+       { 0x004000, 0x004AFF },
+       { 0x00C800, 0x00CFFF },
+       { 0x00DD00, 0x00DDFF },
+       { 0x00E900, 0x00FFFF }, /* 0xEA00 - OxEFFF is unused */
+       {},
+};
+
+static const struct intel_mmio_range xehpsdv_lncf_steering_table[] = {
+       { 0x00B000, 0x00B0FF },
+       { 0x00D800, 0x00D8FF },
+       {},
+};
+
 static u16 slicemask(struct intel_gt *gt, int count)
 {
        u64 dss_mask = intel_sseu_get_subslices(&gt->info.sseu, 0);
@@ -115,7 +129,10 @@ int intel_gt_init_mmio(struct intel_gt *gt)
                        (intel_uncore_read(gt->uncore, GEN10_MIRROR_FUSE3) &
                         GEN12_MEML3_EN_MASK);
 
-       if (GRAPHICS_VER(i915) >= 11 &&
+       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 &&
                   GRAPHICS_VER_FULL(i915) < IP_VER(12, 50)) {
                gt->steering_table[L3BANK] = icl_l3bank_steering_table;
                gt->info.l3bank_mask =

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 29a7603..b378ffc 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -934,7 +934,6 @@ icl_wa_init_mcr(struct drm_i915_private *i915, struct i915_wa_list *wal)
        __add_mcr_wa(i915, wal, slice, subslice);
 }
 
-__maybe_unused
 static void
 xehp_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal)
 {
@@ -1137,9 +1136,17 @@ dg1_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 }
 
 static void
+xehpsdv_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
+{
+       xehp_init_mcr(&i915->gt, wal);
+}
+
+static void
 gt_init_workarounds(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-       if (IS_DG1(i915))
+       if (IS_XEHPSDV(i915))
+               xehpsdv_gt_workarounds_init(i915, wal);
+       else if (IS_DG1(i915))
                dg1_gt_workarounds_init(i915, wal);
        else if (IS_TIGERLAKE(i915))
                tgl_gt_workarounds_init(i915, wal);