diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_mocs.c | 72 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/selftest_mocs.c | 24 |
2 files changed, 67 insertions, 29 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c index 0afc1eb3c20f..632e08a4592b 100644 --- a/drivers/gpu/drm/i915/gt/intel_mocs.c +++ b/drivers/gpu/drm/i915/gt/intel_mocs.c @@ -280,9 +280,32 @@ static const struct drm_i915_mocs_entry icl_mocs_table[] = { GEN11_MOCS_ENTRIES }; -static bool get_mocs_settings(const struct drm_i915_private *i915, - struct drm_i915_mocs_table *table) +enum { + HAS_GLOBAL_MOCS = BIT(0), + HAS_ENGINE_MOCS = BIT(1), + HAS_RENDER_L3CC = BIT(2), +}; + +static bool has_l3cc(const struct drm_i915_private *i915) { + return true; +} + +static bool has_global_mocs(const struct drm_i915_private *i915) +{ + return HAS_GLOBAL_MOCS_REGISTERS(i915); +} + +static bool has_mocs(const struct drm_i915_private *i915) +{ + return !IS_DGFX(i915); +} + +static unsigned int get_mocs_settings(const struct drm_i915_private *i915, + struct drm_i915_mocs_table *table) +{ + unsigned int flags; + if (INTEL_GEN(i915) >= 12) { table->size = ARRAY_SIZE(tgl_mocs_table); table->table = tgl_mocs_table; @@ -302,11 +325,11 @@ static bool get_mocs_settings(const struct drm_i915_private *i915, } else { drm_WARN_ONCE(&i915->drm, INTEL_GEN(i915) >= 9, "Platform that should have a MOCS table does not.\n"); - return false; + return 0; } if (GEM_DEBUG_WARN_ON(table->size > table->n_entries)) - return false; + return 0; /* WaDisableSkipCaching:skl,bxt,kbl,glk */ if (IS_GEN(i915, 9)) { @@ -315,10 +338,20 @@ static bool get_mocs_settings(const struct drm_i915_private *i915, for (i = 0; i < table->size; i++) if (GEM_DEBUG_WARN_ON(table->table[i].l3cc_value & (L3_ESC(1) | L3_SCC(0x7)))) - return false; + return 0; } - return true; + flags = 0; + if (has_mocs(i915)) { + if (has_global_mocs(i915)) + flags |= HAS_GLOBAL_MOCS; + else + flags |= HAS_ENGINE_MOCS; + } + if (has_l3cc(i915)) + flags |= HAS_RENDER_L3CC; + + return flags; } /* @@ -411,18 +444,20 @@ static void init_l3cc_table(struct intel_engine_cs *engine, void intel_mocs_init_engine(struct intel_engine_cs *engine) { struct drm_i915_mocs_table table; + unsigned int flags; /* Called under a blanket forcewake */ assert_forcewakes_active(engine->uncore, FORCEWAKE_ALL); - if (!get_mocs_settings(engine->i915, &table)) + flags = get_mocs_settings(engine->i915, &table); + if (!flags) return; /* Platforms with global MOCS do not need per-engine initialization. */ - if (!HAS_GLOBAL_MOCS_REGISTERS(engine->i915)) + if (flags & HAS_ENGINE_MOCS) init_mocs_table(engine, &table); - if (engine->class == RENDER_CLASS) + if (flags & HAS_RENDER_L3CC && engine->class == RENDER_CLASS) init_l3cc_table(engine, &table); } @@ -431,26 +466,17 @@ static u32 global_mocs_offset(void) return i915_mmio_reg_offset(GEN12_GLOBAL_MOCS(0)); } -static void init_global_mocs(struct intel_gt *gt) +void intel_mocs_init(struct intel_gt *gt) { struct drm_i915_mocs_table table; + unsigned int flags; /* * LLC and eDRAM control values are not applicable to dgfx */ - if (IS_DGFX(gt->i915)) - return; - - if (!get_mocs_settings(gt->i915, &table)) - return; - - __init_mocs_table(gt->uncore, &table, global_mocs_offset()); -} - -void intel_mocs_init(struct intel_gt *gt) -{ - if (HAS_GLOBAL_MOCS_REGISTERS(gt->i915)) - init_global_mocs(gt); + flags = get_mocs_settings(gt->i915, &table); + if (flags & HAS_GLOBAL_MOCS) + __init_mocs_table(gt->uncore, &table, global_mocs_offset()); } #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) diff --git a/drivers/gpu/drm/i915/gt/selftest_mocs.c b/drivers/gpu/drm/i915/gt/selftest_mocs.c index de1f83100fb6..8831ffee2061 100644 --- a/drivers/gpu/drm/i915/gt/selftest_mocs.c +++ b/drivers/gpu/drm/i915/gt/selftest_mocs.c @@ -12,7 +12,8 @@ #include "selftests/igt_spinner.h" struct live_mocs { - struct drm_i915_mocs_table table; + struct drm_i915_mocs_table mocs; + struct drm_i915_mocs_table l3cc; struct i915_vma *scratch; void *vaddr; }; @@ -70,11 +71,22 @@ static struct i915_vma *create_scratch(struct intel_gt *gt) static int live_mocs_init(struct live_mocs *arg, struct intel_gt *gt) { + struct drm_i915_mocs_table table; + unsigned int flags; int err; - if (!get_mocs_settings(gt->i915, &arg->table)) + memset(arg, 0, sizeof(*arg)); + + flags = get_mocs_settings(gt->i915, &table); + if (!flags) return -EINVAL; + if (flags & HAS_RENDER_L3CC) + arg->l3cc = table; + + if (flags & (HAS_GLOBAL_MOCS | HAS_ENGINE_MOCS)) + arg->mocs = table; + arg->scratch = create_scratch(gt); if (IS_ERR(arg->scratch)) return PTR_ERR(arg->scratch); @@ -223,9 +235,9 @@ static int check_mocs_engine(struct live_mocs *arg, /* Read the mocs tables back using SRM */ offset = i915_ggtt_offset(vma); if (!err) - err = read_mocs_table(rq, &arg->table, &offset); + err = read_mocs_table(rq, &arg->mocs, &offset); if (!err && ce->engine->class == RENDER_CLASS) - err = read_l3cc_table(rq, &arg->table, &offset); + err = read_l3cc_table(rq, &arg->l3cc, &offset); offset -= i915_ggtt_offset(vma); GEM_BUG_ON(offset > PAGE_SIZE); @@ -236,9 +248,9 @@ static int check_mocs_engine(struct live_mocs *arg, /* Compare the results against the expected tables */ vaddr = arg->vaddr; if (!err) - err = check_mocs_table(ce->engine, &arg->table, &vaddr); + err = check_mocs_table(ce->engine, &arg->mocs, &vaddr); if (!err && ce->engine->class == RENDER_CLASS) - err = check_l3cc_table(ce->engine, &arg->table, &vaddr); + err = check_l3cc_table(ce->engine, &arg->l3cc, &vaddr); if (err) return err; |