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drm/i915/gt: Declare gen9 has 64 mocs entries!

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We checked the table size against a hardcoded number of entries, and
that number was excluding the special mocs registers at the end.

Fixes: 977933b5da ("drm/i915/gt: Program mocs:63 for cache eviction on gen9")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v4.3+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201127102540.13117-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-11-27 10:25:40 +00:00
parent 85cc2917a3
commit 444fbf5d70
1 changed files with 4 additions and 5 deletions
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9
drivers/gpu/drm/i915/gt/intel_mocs.c
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@ -59,8 +59,7 @@ struct drm_i915_mocs_table {
#define _L3_CACHEABILITY(value) ((value) << 4)
/* Helper defines */
#define GEN9_NUM_MOCS_ENTRIES 62 /* 62 out of 64 - 63 & 64 are reserved. */
#define GEN11_NUM_MOCS_ENTRIES 64 /* 63-64 are reserved, but configured. */
#define GEN9_NUM_MOCS_ENTRIES 64 /* 63-64 are reserved, but configured. */
/* (e)LLC caching options */
/*
@ -361,15 +360,15 @@ static unsigned int get_mocs_settings(const struct drm_i915_private *i915,
if (IS_DG1(i915)) {
table->size = ARRAY_SIZE(dg1_mocs_table);
table->table = dg1_mocs_table;
table->n_entries = GEN11_NUM_MOCS_ENTRIES;
table->n_entries = GEN9_NUM_MOCS_ENTRIES;
} else if (INTEL_GEN(i915) >= 12) {
table->size = ARRAY_SIZE(tgl_mocs_table);
table->table = tgl_mocs_table;
table->n_entries = GEN11_NUM_MOCS_ENTRIES;
table->n_entries = GEN9_NUM_MOCS_ENTRIES;
} else if (IS_GEN(i915, 11)) {
table->size = ARRAY_SIZE(icl_mocs_table);
table->table = icl_mocs_table;
table->n_entries = GEN11_NUM_MOCS_ENTRIES;
table->n_entries = GEN9_NUM_MOCS_ENTRIES;
} else if (IS_GEN9_BC(i915) || IS_CANNONLAKE(i915)) {
table->size = ARRAY_SIZE(skl_mocs_table);
table->n_entries = GEN9_NUM_MOCS_ENTRIES;