[Intel-gfx] [PATCH v2] drm/i915/icl: Update subslice define for ICL 11

[Oscar Mateo]

From: Kelvin Gardiner <kelvin.gardiner at intel.com>

ICL 11 has a greater number of maximum subslices. This patch
reflects this.

v2: GEN11 updates to MCR_SELECTOR (Oscar)

Bspec: 21139
BSpec: 21108

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com> (v1)
Signed-off-by: Kelvin Gardiner <kelvin.gardiner at intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo at intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h         |  4 ++++
 drivers/gpu/drm/i915/intel_engine_cs.c  | 22 ++++++++++++++++++----
 drivers/gpu/drm/i915/intel_ringbuffer.h |  2 +-
 3 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c9b6250..c79ca5b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2444,6 +2444,10 @@ enum i915_power_well_id {
 #define   GEN8_MCR_SLICE_MASK		GEN8_MCR_SLICE(3)
 #define   GEN8_MCR_SUBSLICE(subslice)	(((subslice) & 3) << 24)
 #define   GEN8_MCR_SUBSLICE_MASK	GEN8_MCR_SUBSLICE(3)
+#define   GEN11_MCR_SLICE(slice)	(((slice) & 0xf) << 27)
+#define   GEN11_MCR_SLICE_MASK		GEN8_MCR_SLICE(0xf)
+#define   GEN11_MCR_SUBSLICE(subslice)	(((subslice) & 0x7) << 24)
+#define   GEN11_MCR_SUBSLICE_MASK	GEN8_MCR_SUBSLICE(0x7)
 #define RING_IPEIR(base)	_MMIO((base)+0x64)
 #define RING_IPEHR(base)	_MMIO((base)+0x68)
 /*
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index a373bcb..8c0da94 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -775,10 +775,24 @@ const char *i915_cache_level_str(struct drm_i915_private *i915, int type)
 read_subslice_reg(struct drm_i915_private *dev_priv, int slice,
 		  int subslice, i915_reg_t reg)
 {
+	uint32_t mcr_slice_subslice_mask;
+	uint32_t mcr_slice_subslice_select;
 	uint32_t mcr;
 	uint32_t ret;
 	enum forcewake_domains fw_domains;
 
+	if (INTEL_GEN(dev_priv) >= 11) {
+		mcr_slice_subslice_mask = GEN11_MCR_SLICE_MASK |
+					  GEN11_MCR_SUBSLICE_MASK;
+		mcr_slice_subslice_select = GEN11_MCR_SLICE(slice) |
+					    GEN11_MCR_SUBSLICE(subslice);
+	} else {
+		mcr_slice_subslice_mask = GEN8_MCR_SLICE_MASK |
+					  GEN8_MCR_SUBSLICE_MASK;
+		mcr_slice_subslice_select = GEN8_MCR_SLICE(slice) |
+					    GEN8_MCR_SUBSLICE(subslice);
+	}
+
 	fw_domains = intel_uncore_forcewake_for_reg(dev_priv, reg,
 						    FW_REG_READ);
 	fw_domains |= intel_uncore_forcewake_for_reg(dev_priv,
@@ -793,14 +807,14 @@ const char *i915_cache_level_str(struct drm_i915_private *i915, int type)
 	 * The HW expects the slice and sublice selectors to be reset to 0
 	 * after reading out the registers.
 	 */
-	WARN_ON_ONCE(mcr & (GEN8_MCR_SLICE_MASK | GEN8_MCR_SUBSLICE_MASK));
-	mcr &= ~(GEN8_MCR_SLICE_MASK | GEN8_MCR_SUBSLICE_MASK);
-	mcr |= GEN8_MCR_SLICE(slice) | GEN8_MCR_SUBSLICE(subslice);
+	WARN_ON_ONCE(mcr & mcr_slice_subslice_mask);
+	mcr &= ~mcr_slice_subslice_mask;
+	mcr |= mcr_slice_subslice_select;
 	I915_WRITE_FW(GEN8_MCR_SELECTOR, mcr);
 
 	ret = I915_READ_FW(reg);
 
-	mcr &= ~(GEN8_MCR_SLICE_MASK | GEN8_MCR_SUBSLICE_MASK);
+	mcr &= ~mcr_slice_subslice_mask;
 	I915_WRITE_FW(GEN8_MCR_SELECTOR, mcr);
 
 	intel_uncore_forcewake_put__locked(dev_priv, fw_domains);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 2a88231..029093a 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -82,7 +82,7 @@ enum intel_engine_hangcheck_action {
 }
 
 #define I915_MAX_SLICES	3
-#define I915_MAX_SUBSLICES 3
+#define I915_MAX_SUBSLICES 8
 
 #define instdone_slice_mask(dev_priv__) \
 	(INTEL_GEN(dev_priv__) == 7 ? \
-- 
1.9.1