drm/i915/icl: Update subslice define for ICL 11

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

v2: GEN11 updates to MCR_SELECTOR (Oscar)
v3: Copypasta error in the new defines (Lionel)

Bspec: 21139
BSpec: 21108

Signed-off-by: Kelvin Gardiner <kelvin.gardiner@intel.com>
Reviewed-by: Oscar Mateo <oscar.mateo@intel.com> (v1)
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> (v1)
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180316121456.11577-3-mika.kuoppala@linux.intel.com
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 429de0a..699292e 100644 (file)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2151,6 +2151,10 @@ 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         GEN11_MCR_SLICE(0xf)
+#define   GEN11_MCR_SUBSLICE(subslice) (((subslice) & 0x7) << 24)
+#define   GEN11_MCR_SUBSLICE_MASK      GEN11_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 337dfa5..de09fa4 100644 (file)
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -800,10 +800,24 @@ static inline uint32_t
 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,
@@ -818,14 +832,14 @@ read_subslice_reg(struct drm_i915_private *dev_priv, int slice,
         * 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 1f50727..a02c7b3 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -86,7 +86,7 @@ hangcheck_action_to_str(const enum intel_engine_hangcheck_action a)
 }
 
 #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 ? \