drm/i915/xehpsdv: Add maximum sseu limits

Due to the removal of legacy slices and the transition to a
gslice/cslice/mslice/etc. design, we'll internally store all DSS under
"slice0."

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Caz Yokoyama <caz.yokoyama@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210729170008.2836648-10-matthew.d.roper@intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.c b/drivers/gpu/drm/i915/gt/intel_sseu.c
index d2d5c47..3a2ff0e 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_sseu.c
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.c
@@ -145,7 +145,10 @@ static void gen12_sseu_info_init(struct intel_gt *gt)
         * across the entire device. Then calculate out the DSS for each
         * workload type within that software slice.
         */
-       intel_sseu_set_info(sseu, 1, 6, 16);
+       if (IS_XEHPSDV(gt->i915))
+               intel_sseu_set_info(sseu, 1, 32, 16);
+       else
+               intel_sseu_set_info(sseu, 1, 6, 16);
 
        /*
         * As mentioned above, Xe_HP does not have the concept of a slice.

diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h
index 8d85ec0..05a93e4 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_sseu.h
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.h
@@ -16,7 +16,7 @@ struct intel_gt;
 struct drm_printer;
 
 #define GEN_MAX_SLICES         (3) /* SKL upper bound */
-#define GEN_MAX_SUBSLICES      (8) /* ICL upper bound */
+#define GEN_MAX_SUBSLICES      (32) /* XEHPSDV upper bound */
 #define GEN_SSEU_STRIDE(max_entries) DIV_ROUND_UP(max_entries, BITS_PER_BYTE)
 #define GEN_MAX_SUBSLICE_STRIDE GEN_SSEU_STRIDE(GEN_MAX_SUBSLICES)
 #define GEN_MAX_EUS            (16) /* TGL upper bound */

diff --git a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c
index 5e7b09c..1ba8b7d 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c
@@ -53,7 +53,7 @@ static void cherryview_sseu_device_status(struct intel_gt *gt,
 static void gen11_sseu_device_status(struct intel_gt *gt,
                                     struct sseu_dev_info *sseu)
 {
-#define SS_MAX 6
+#define SS_MAX 8
        struct intel_uncore *uncore = gt->uncore;
        const struct intel_gt_info *info = &gt->info;
        u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];