Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 755 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c
new file mode 100644
index 000000000..2c0144072
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_mocs.c
@@ -0,0 +1,755 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2015 Intel Corporation
+ */
+
+#include "i915_drv.h"
+
+#include "intel_engine.h"
+#include "intel_gt.h"
+#include "intel_gt_mcr.h"
+#include "intel_gt_regs.h"
+#include "intel_mocs.h"
+#include "intel_ring.h"
+
+/* structures required */
+struct drm_i915_mocs_entry {
+	u32 control_value;
+	u16 l3cc_value;
+	u16 used;
+};
+
+struct drm_i915_mocs_table {
+	unsigned int size;
+	unsigned int n_entries;
+	const struct drm_i915_mocs_entry *table;
+	u8 uc_index;
+	u8 wb_index; /* Only used on HAS_L3_CCS_READ() platforms */
+	u8 unused_entries_index;
+};
+
+/* Defines for the tables (XXX_MOCS_0 - XXX_MOCS_63) */
+#define _LE_CACHEABILITY(value)	((value) << 0)
+#define _LE_TGT_CACHE(value)	((value) << 2)
+#define LE_LRUM(value)		((value) << 4)
+#define LE_AOM(value)		((value) << 6)
+#define LE_RSC(value)		((value) << 7)
+#define LE_SCC(value)		((value) << 8)
+#define LE_PFM(value)		((value) << 11)
+#define LE_SCF(value)		((value) << 14)
+#define LE_COS(value)		((value) << 15)
+#define LE_SSE(value)		((value) << 17)
+
+/* Defines for the tables (GLOB_MOCS_0 - GLOB_MOCS_16) */
+#define _L4_CACHEABILITY(value)	((value) << 2)
+#define IG_PAT(value)		((value) << 8)
+
+/* Defines for the tables (LNCFMOCS0 - LNCFMOCS31) - two entries per word */
+#define L3_ESC(value)		((value) << 0)
+#define L3_SCC(value)		((value) << 1)
+#define _L3_CACHEABILITY(value)	((value) << 4)
+#define L3_GLBGO(value)		((value) << 6)
+#define L3_LKUP(value)		((value) << 7)
+
+/* Helper defines */
+#define GEN9_NUM_MOCS_ENTRIES	64  /* 63-64 are reserved, but configured. */
+#define PVC_NUM_MOCS_ENTRIES	3
+#define MTL_NUM_MOCS_ENTRIES	16
+
+/* (e)LLC caching options */
+/*
+ * Note: LE_0_PAGETABLE works only up to Gen11; for newer gens it means
+ * the same as LE_UC
+ */
+#define LE_0_PAGETABLE		_LE_CACHEABILITY(0)
+#define LE_1_UC			_LE_CACHEABILITY(1)
+#define LE_2_WT			_LE_CACHEABILITY(2)
+#define LE_3_WB			_LE_CACHEABILITY(3)
+
+/* Target cache */
+#define LE_TC_0_PAGETABLE	_LE_TGT_CACHE(0)
+#define LE_TC_1_LLC		_LE_TGT_CACHE(1)
+#define LE_TC_2_LLC_ELLC	_LE_TGT_CACHE(2)
+#define LE_TC_3_LLC_ELLC_ALT	_LE_TGT_CACHE(3)
+
+/* L3 caching options */
+#define L3_0_DIRECT		_L3_CACHEABILITY(0)
+#define L3_1_UC			_L3_CACHEABILITY(1)
+#define L3_2_RESERVED		_L3_CACHEABILITY(2)
+#define L3_3_WB			_L3_CACHEABILITY(3)
+
+/* L4 caching options */
+#define L4_0_WB			_L4_CACHEABILITY(0)
+#define L4_1_WT			_L4_CACHEABILITY(1)
+#define L4_2_RESERVED		_L4_CACHEABILITY(2)
+#define L4_3_UC			_L4_CACHEABILITY(3)
+
+#define MOCS_ENTRY(__idx, __control_value, __l3cc_value) \
+	[__idx] = { \
+		.control_value = __control_value, \
+		.l3cc_value = __l3cc_value, \
+		.used = 1, \
+	}
+
+/*
+ * MOCS tables
+ *
+ * These are the MOCS tables that are programmed across all the rings.
+ * The control value is programmed to all the rings that support the
+ * MOCS registers. While the l3cc_values are only programmed to the
+ * LNCFCMOCS0 - LNCFCMOCS32 registers.
+ *
+ * These tables are intended to be kept reasonably consistent across
+ * HW platforms, and for ICL+, be identical across OSes. To achieve
+ * that, for Icelake and above, list of entries is published as part
+ * of bspec.
+ *
+ * Entries not part of the following tables are undefined as far as
+ * userspace is concerned and shouldn't be relied upon.  For Gen < 12
+ * they will be initialized to PTE. Gen >= 12 don't have a setting for
+ * PTE and those platforms except TGL/RKL will be initialized L3 WB to
+ * catch accidental use of reserved and unused mocs indexes.
+ *
+ * The last few entries are reserved by the hardware. For ICL+ they
+ * should be initialized according to bspec and never used, for older
+ * platforms they should never be written to.
+ *
+ * NOTE1: These tables are part of bspec and defined as part of hardware
+ *       interface for ICL+. For older platforms, they are part of kernel
+ *       ABI. It is expected that, for specific hardware platform, existing
+ *       entries will remain constant and the table will only be updated by
+ *       adding new entries, filling unused positions.
+ *
+ * NOTE2: For GEN >= 12 except TGL and RKL, reserved and unspecified MOCS
+ *       indices have been set to L3 WB. These reserved entries should never
+ *       be used, they may be changed to low performant variants with better
+ *       coherency in the future if more entries are needed.
+ *       For TGL/RKL, all the unspecified MOCS indexes are mapped to L3 UC.
+ */
+#define GEN9_MOCS_ENTRIES \
+	MOCS_ENTRY(I915_MOCS_UNCACHED, \
+		   LE_1_UC | LE_TC_2_LLC_ELLC, \
+		   L3_1_UC), \
+	MOCS_ENTRY(I915_MOCS_PTE, \
+		   LE_0_PAGETABLE | LE_TC_0_PAGETABLE | LE_LRUM(3), \
+		   L3_3_WB)
+
+static const struct drm_i915_mocs_entry skl_mocs_table[] = {
+	GEN9_MOCS_ENTRIES,
+	MOCS_ENTRY(I915_MOCS_CACHED,
+		   LE_3_WB | LE_TC_2_LLC_ELLC | LE_LRUM(3),
+		   L3_3_WB),
+
+	/*
+	 * mocs:63
+	 * - used by the L3 for all of its evictions.
+	 *   Thus it is expected to allow LLC cacheability to enable coherent
+	 *   flows to be maintained.
+	 * - used to force L3 uncachable cycles.
+	 *   Thus it is expected to make the surface L3 uncacheable.
+	 */
+	MOCS_ENTRY(63,
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3),
+		   L3_1_UC)
+};
+
+/* NOTE: the LE_TGT_CACHE is not used on Broxton */
+static const struct drm_i915_mocs_entry broxton_mocs_table[] = {
+	GEN9_MOCS_ENTRIES,
+	MOCS_ENTRY(I915_MOCS_CACHED,
+		   LE_1_UC | LE_TC_2_LLC_ELLC | LE_LRUM(3),
+		   L3_3_WB)
+};
+
+#define GEN11_MOCS_ENTRIES \
+	/* Entries 0 and 1 are defined per-platform */ \
+	/* Base - L3 + LLC */ \
+	MOCS_ENTRY(2, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3), \
+		   L3_3_WB), \
+	/* Base - Uncached */ \
+	MOCS_ENTRY(3, \
+		   LE_1_UC | LE_TC_1_LLC, \
+		   L3_1_UC), \
+	/* Base - L3 */ \
+	MOCS_ENTRY(4, \
+		   LE_1_UC | LE_TC_1_LLC, \
+		   L3_3_WB), \
+	/* Base - LLC */ \
+	MOCS_ENTRY(5, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3), \
+		   L3_1_UC), \
+	/* Age 0 - LLC */ \
+	MOCS_ENTRY(6, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(1), \
+		   L3_1_UC), \
+	/* Age 0 - L3 + LLC */ \
+	MOCS_ENTRY(7, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(1), \
+		   L3_3_WB), \
+	/* Age: Don't Chg. - LLC */ \
+	MOCS_ENTRY(8, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(2), \
+		   L3_1_UC), \
+	/* Age: Don't Chg. - L3 + LLC */ \
+	MOCS_ENTRY(9, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(2), \
+		   L3_3_WB), \
+	/* No AOM - LLC */ \
+	MOCS_ENTRY(10, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_AOM(1), \
+		   L3_1_UC), \
+	/* No AOM - L3 + LLC */ \
+	MOCS_ENTRY(11, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_AOM(1), \
+		   L3_3_WB), \
+	/* No AOM; Age 0 - LLC */ \
+	MOCS_ENTRY(12, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(1) | LE_AOM(1), \
+		   L3_1_UC), \
+	/* No AOM; Age 0 - L3 + LLC */ \
+	MOCS_ENTRY(13, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(1) | LE_AOM(1), \
+		   L3_3_WB), \
+	/* No AOM; Age:DC - LLC */ \
+	MOCS_ENTRY(14, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(2) | LE_AOM(1), \
+		   L3_1_UC), \
+	/* No AOM; Age:DC - L3 + LLC */ \
+	MOCS_ENTRY(15, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(2) | LE_AOM(1), \
+		   L3_3_WB), \
+	/* Bypass LLC - Uncached (EHL+) */ \
+	MOCS_ENTRY(16, \
+		   LE_1_UC | LE_TC_1_LLC | LE_SCF(1), \
+		   L3_1_UC), \
+	/* Bypass LLC - L3 (Read-Only) (EHL+) */ \
+	MOCS_ENTRY(17, \
+		   LE_1_UC | LE_TC_1_LLC | LE_SCF(1), \
+		   L3_3_WB), \
+	/* Self-Snoop - L3 + LLC */ \
+	MOCS_ENTRY(18, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_SSE(3), \
+		   L3_3_WB), \
+	/* Skip Caching - L3 + LLC(12.5%) */ \
+	MOCS_ENTRY(19, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_SCC(7), \
+		   L3_3_WB), \
+	/* Skip Caching - L3 + LLC(25%) */ \
+	MOCS_ENTRY(20, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_SCC(3), \
+		   L3_3_WB), \
+	/* Skip Caching - L3 + LLC(50%) */ \
+	MOCS_ENTRY(21, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_SCC(1), \
+		   L3_3_WB), \
+	/* Skip Caching - L3 + LLC(75%) */ \
+	MOCS_ENTRY(22, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_RSC(1) | LE_SCC(3), \
+		   L3_3_WB), \
+	/* Skip Caching - L3 + LLC(87.5%) */ \
+	MOCS_ENTRY(23, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_RSC(1) | LE_SCC(7), \
+		   L3_3_WB), \
+	/* HW Reserved - SW program but never use */ \
+	MOCS_ENTRY(62, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3), \
+		   L3_1_UC), \
+	/* HW Reserved - SW program but never use */ \
+	MOCS_ENTRY(63, \
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3), \
+		   L3_1_UC)
+
+static const struct drm_i915_mocs_entry tgl_mocs_table[] = {
+	/*
+	 * NOTE:
+	 * Reserved and unspecified MOCS indices have been set to (L3 + LCC).
+	 * These reserved entries should never be used, they may be changed
+	 * to low performant variants with better coherency in the future if
+	 * more entries are needed. We are programming index I915_MOCS_PTE(1)
+	 * only, __init_mocs_table() take care to program unused index with
+	 * this entry.
+	 */
+	MOCS_ENTRY(I915_MOCS_PTE,
+		   LE_0_PAGETABLE | LE_TC_0_PAGETABLE,
+		   L3_1_UC),
+	GEN11_MOCS_ENTRIES,
+
+	/* Implicitly enable L1 - HDC:L1 + L3 + LLC */
+	MOCS_ENTRY(48,
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3),
+		   L3_3_WB),
+	/* Implicitly enable L1 - HDC:L1 + L3 */
+	MOCS_ENTRY(49,
+		   LE_1_UC | LE_TC_1_LLC,
+		   L3_3_WB),
+	/* Implicitly enable L1 - HDC:L1 + LLC */
+	MOCS_ENTRY(50,
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3),
+		   L3_1_UC),
+	/* Implicitly enable L1 - HDC:L1 */
+	MOCS_ENTRY(51,
+		   LE_1_UC | LE_TC_1_LLC,
+		   L3_1_UC),
+	/* HW Special Case (CCS) */
+	MOCS_ENTRY(60,
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3),
+		   L3_1_UC),
+	/* HW Special Case (Displayable) */
+	MOCS_ENTRY(61,
+		   LE_1_UC | LE_TC_1_LLC,
+		   L3_3_WB),
+};
+
+static const struct drm_i915_mocs_entry icl_mocs_table[] = {
+	/* Base - Uncached (Deprecated) */
+	MOCS_ENTRY(I915_MOCS_UNCACHED,
+		   LE_1_UC | LE_TC_1_LLC,
+		   L3_1_UC),
+	/* Base - L3 + LeCC:PAT (Deprecated) */
+	MOCS_ENTRY(I915_MOCS_PTE,
+		   LE_0_PAGETABLE | LE_TC_0_PAGETABLE,
+		   L3_3_WB),
+
+	GEN11_MOCS_ENTRIES
+};
+
+static const struct drm_i915_mocs_entry dg1_mocs_table[] = {
+
+	/* UC */
+	MOCS_ENTRY(1, 0, L3_1_UC),
+	/* WB - L3 */
+	MOCS_ENTRY(5, 0, L3_3_WB),
+	/* WB - L3 50% */
+	MOCS_ENTRY(6, 0, L3_ESC(1) | L3_SCC(1) | L3_3_WB),
+	/* WB - L3 25% */
+	MOCS_ENTRY(7, 0, L3_ESC(1) | L3_SCC(3) | L3_3_WB),
+	/* WB - L3 12.5% */
+	MOCS_ENTRY(8, 0, L3_ESC(1) | L3_SCC(7) | L3_3_WB),
+
+	/* HDC:L1 + L3 */
+	MOCS_ENTRY(48, 0, L3_3_WB),
+	/* HDC:L1 */
+	MOCS_ENTRY(49, 0, L3_1_UC),
+
+	/* HW Reserved */
+	MOCS_ENTRY(60, 0, L3_1_UC),
+	MOCS_ENTRY(61, 0, L3_1_UC),
+	MOCS_ENTRY(62, 0, L3_1_UC),
+	MOCS_ENTRY(63, 0, L3_1_UC),
+};
+
+static const struct drm_i915_mocs_entry gen12_mocs_table[] = {
+	GEN11_MOCS_ENTRIES,
+	/* Implicitly enable L1 - HDC:L1 + L3 + LLC */
+	MOCS_ENTRY(48,
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3),
+		   L3_3_WB),
+	/* Implicitly enable L1 - HDC:L1 + L3 */
+	MOCS_ENTRY(49,
+		   LE_1_UC | LE_TC_1_LLC,
+		   L3_3_WB),
+	/* Implicitly enable L1 - HDC:L1 + LLC */
+	MOCS_ENTRY(50,
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3),
+		   L3_1_UC),
+	/* Implicitly enable L1 - HDC:L1 */
+	MOCS_ENTRY(51,
+		   LE_1_UC | LE_TC_1_LLC,
+		   L3_1_UC),
+	/* HW Special Case (CCS) */
+	MOCS_ENTRY(60,
+		   LE_3_WB | LE_TC_1_LLC | LE_LRUM(3),
+		   L3_1_UC),
+	/* HW Special Case (Displayable) */
+	MOCS_ENTRY(61,
+		   LE_1_UC | LE_TC_1_LLC,
+		   L3_3_WB),
+};
+
+static const struct drm_i915_mocs_entry xehpsdv_mocs_table[] = {
+	/* wa_1608975824 */
+	MOCS_ENTRY(0, 0, L3_3_WB | L3_LKUP(1)),
+
+	/* UC - Coherent; GO:L3 */
+	MOCS_ENTRY(1, 0, L3_1_UC | L3_LKUP(1)),
+	/* UC - Coherent; GO:Memory */
+	MOCS_ENTRY(2, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)),
+	/* UC - Non-Coherent; GO:Memory */
+	MOCS_ENTRY(3, 0, L3_1_UC | L3_GLBGO(1)),
+	/* UC - Non-Coherent; GO:L3 */
+	MOCS_ENTRY(4, 0, L3_1_UC),
+
+	/* WB */
+	MOCS_ENTRY(5, 0, L3_3_WB | L3_LKUP(1)),
+
+	/* HW Reserved - SW program but never use. */
+	MOCS_ENTRY(48, 0, L3_3_WB | L3_LKUP(1)),
+	MOCS_ENTRY(49, 0, L3_1_UC | L3_LKUP(1)),
+	MOCS_ENTRY(60, 0, L3_1_UC),
+	MOCS_ENTRY(61, 0, L3_1_UC),
+	MOCS_ENTRY(62, 0, L3_1_UC),
+	MOCS_ENTRY(63, 0, L3_1_UC),
+};
+
+static const struct drm_i915_mocs_entry dg2_mocs_table[] = {
+	/* UC - Coherent; GO:L3 */
+	MOCS_ENTRY(0, 0, L3_1_UC | L3_LKUP(1)),
+	/* UC - Coherent; GO:Memory */
+	MOCS_ENTRY(1, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)),
+	/* UC - Non-Coherent; GO:Memory */
+	MOCS_ENTRY(2, 0, L3_1_UC | L3_GLBGO(1)),
+
+	/* WB - LC */
+	MOCS_ENTRY(3, 0, L3_3_WB | L3_LKUP(1)),
+};
+
+static const struct drm_i915_mocs_entry dg2_mocs_table_g10_ax[] = {
+	/* Wa_14011441408: Set Go to Memory for MOCS#0 */
+	MOCS_ENTRY(0, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)),
+	/* UC - Coherent; GO:Memory */
+	MOCS_ENTRY(1, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)),
+	/* UC - Non-Coherent; GO:Memory */
+	MOCS_ENTRY(2, 0, L3_1_UC | L3_GLBGO(1)),
+
+	/* WB - LC */
+	MOCS_ENTRY(3, 0, L3_3_WB | L3_LKUP(1)),
+};
+
+static const struct drm_i915_mocs_entry pvc_mocs_table[] = {
+	/* Error */
+	MOCS_ENTRY(0, 0, L3_3_WB),
+
+	/* UC */
+	MOCS_ENTRY(1, 0, L3_1_UC),
+
+	/* WB */
+	MOCS_ENTRY(2, 0, L3_3_WB),
+};
+
+static const struct drm_i915_mocs_entry mtl_mocs_table[] = {
+	/* Error - Reserved for Non-Use */
+	MOCS_ENTRY(0,
+		   IG_PAT(0),
+		   L3_LKUP(1) | L3_3_WB),
+	/* Cached - L3 + L4 */
+	MOCS_ENTRY(1,
+		   IG_PAT(1),
+		   L3_LKUP(1) | L3_3_WB),
+	/* L4 - GO:L3 */
+	MOCS_ENTRY(2,
+		   IG_PAT(1),
+		   L3_LKUP(1) | L3_1_UC),
+	/* Uncached - GO:L3 */
+	MOCS_ENTRY(3,
+		   IG_PAT(1) | L4_3_UC,
+		   L3_LKUP(1) | L3_1_UC),
+	/* L4 - GO:Mem */
+	MOCS_ENTRY(4,
+		   IG_PAT(1),
+		   L3_LKUP(1) | L3_GLBGO(1) | L3_1_UC),
+	/* Uncached - GO:Mem */
+	MOCS_ENTRY(5,
+		   IG_PAT(1) | L4_3_UC,
+		   L3_LKUP(1) | L3_GLBGO(1) | L3_1_UC),
+	/* L4 - L3:NoLKUP; GO:L3 */
+	MOCS_ENTRY(6,
+		   IG_PAT(1),
+		   L3_1_UC),
+	/* Uncached - L3:NoLKUP; GO:L3 */
+	MOCS_ENTRY(7,
+		   IG_PAT(1) | L4_3_UC,
+		   L3_1_UC),
+	/* L4 - L3:NoLKUP; GO:Mem */
+	MOCS_ENTRY(8,
+		   IG_PAT(1),
+		   L3_GLBGO(1) | L3_1_UC),
+	/* Uncached - L3:NoLKUP; GO:Mem */
+	MOCS_ENTRY(9,
+		   IG_PAT(1) | L4_3_UC,
+		   L3_GLBGO(1) | L3_1_UC),
+	/* Display - L3; L4:WT */
+	MOCS_ENTRY(14,
+		   IG_PAT(1) | L4_1_WT,
+		   L3_LKUP(1) | L3_3_WB),
+	/* CCS - Non-Displayable */
+	MOCS_ENTRY(15,
+		   IG_PAT(1),
+		   L3_GLBGO(1) | L3_1_UC),
+};
+
+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;
+
+	memset(table, 0, sizeof(struct drm_i915_mocs_table));
+
+	table->unused_entries_index = I915_MOCS_PTE;
+	if (IS_METEORLAKE(i915)) {
+		table->size = ARRAY_SIZE(mtl_mocs_table);
+		table->table = mtl_mocs_table;
+		table->n_entries = MTL_NUM_MOCS_ENTRIES;
+		table->uc_index = 9;
+		table->unused_entries_index = 1;
+	} else if (IS_PONTEVECCHIO(i915)) {
+		table->size = ARRAY_SIZE(pvc_mocs_table);
+		table->table = pvc_mocs_table;
+		table->n_entries = PVC_NUM_MOCS_ENTRIES;
+		table->uc_index = 1;
+		table->wb_index = 2;
+		table->unused_entries_index = 2;
+	} else if (IS_DG2(i915)) {
+		if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0)) {
+			table->size = ARRAY_SIZE(dg2_mocs_table_g10_ax);
+			table->table = dg2_mocs_table_g10_ax;
+		} else {
+			table->size = ARRAY_SIZE(dg2_mocs_table);
+			table->table = dg2_mocs_table;
+		}
+		table->uc_index = 1;
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+		table->unused_entries_index = 3;
+	} else if (IS_XEHPSDV(i915)) {
+		table->size = ARRAY_SIZE(xehpsdv_mocs_table);
+		table->table = xehpsdv_mocs_table;
+		table->uc_index = 2;
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+		table->unused_entries_index = 5;
+	} else if (IS_DG1(i915)) {
+		table->size = ARRAY_SIZE(dg1_mocs_table);
+		table->table = dg1_mocs_table;
+		table->uc_index = 1;
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+		table->uc_index = 1;
+		table->unused_entries_index = 5;
+	} else if (IS_TIGERLAKE(i915) || IS_ROCKETLAKE(i915)) {
+		/* For TGL/RKL, Can't be changed now for ABI reasons */
+		table->size  = ARRAY_SIZE(tgl_mocs_table);
+		table->table = tgl_mocs_table;
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+		table->uc_index = 3;
+	} else if (GRAPHICS_VER(i915) >= 12) {
+		table->size  = ARRAY_SIZE(gen12_mocs_table);
+		table->table = gen12_mocs_table;
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+		table->uc_index = 3;
+		table->unused_entries_index = 2;
+	} else if (GRAPHICS_VER(i915) == 11) {
+		table->size  = ARRAY_SIZE(icl_mocs_table);
+		table->table = icl_mocs_table;
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+	} else if (IS_GEN9_BC(i915)) {
+		table->size  = ARRAY_SIZE(skl_mocs_table);
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+		table->table = skl_mocs_table;
+	} else if (IS_GEN9_LP(i915)) {
+		table->size  = ARRAY_SIZE(broxton_mocs_table);
+		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
+		table->table = broxton_mocs_table;
+	} else {
+		drm_WARN_ONCE(&i915->drm, GRAPHICS_VER(i915) >= 9,
+			      "Platform that should have a MOCS table does not.\n");
+		return 0;
+	}
+
+	if (GEM_DEBUG_WARN_ON(table->size > table->n_entries))
+		return 0;
+
+	/* WaDisableSkipCaching:skl,bxt,kbl,glk */
+	if (GRAPHICS_VER(i915) == 9) {
+		int i;
+
+		for (i = 0; i < table->size; i++)
+			if (GEM_DEBUG_WARN_ON(table->table[i].l3cc_value &
+					      (L3_ESC(1) | L3_SCC(0x7))))
+				return 0;
+	}
+
+	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;
+}
+
+/*
+ * Get control_value from MOCS entry taking into account when it's not used
+ * then if unused_entries_index is non-zero then its value will be returned
+ * otherwise I915_MOCS_PTE's value is returned in this case.
+ */
+static u32 get_entry_control(const struct drm_i915_mocs_table *table,
+			     unsigned int index)
+{
+	if (index < table->size && table->table[index].used)
+		return table->table[index].control_value;
+	return table->table[table->unused_entries_index].control_value;
+}
+
+#define for_each_mocs(mocs, t, i) \
+	for (i = 0; \
+	     i < (t)->n_entries ? (mocs = get_entry_control((t), i)), 1 : 0;\
+	     i++)
+
+static void __init_mocs_table(struct intel_uncore *uncore,
+			      const struct drm_i915_mocs_table *table,
+			      u32 addr)
+{
+	unsigned int i;
+	u32 mocs;
+
+	drm_WARN_ONCE(&uncore->i915->drm, !table->unused_entries_index,
+		      "Unused entries index should have been defined\n");
+	for_each_mocs(mocs, table, i)
+		intel_uncore_write_fw(uncore, _MMIO(addr + i * 4), mocs);
+}
+
+static u32 mocs_offset(const struct intel_engine_cs *engine)
+{
+	static const u32 offset[] = {
+		[RCS0]  =  __GEN9_RCS0_MOCS0,
+		[VCS0]  =  __GEN9_VCS0_MOCS0,
+		[VCS1]  =  __GEN9_VCS1_MOCS0,
+		[VECS0] =  __GEN9_VECS0_MOCS0,
+		[BCS0]  =  __GEN9_BCS0_MOCS0,
+		[VCS2]  = __GEN11_VCS2_MOCS0,
+	};
+
+	GEM_BUG_ON(engine->id >= ARRAY_SIZE(offset));
+	return offset[engine->id];
+}
+
+static void init_mocs_table(struct intel_engine_cs *engine,
+			    const struct drm_i915_mocs_table *table)
+{
+	__init_mocs_table(engine->uncore, table, mocs_offset(engine));
+}
+
+/*
+ * Get l3cc_value from MOCS entry taking into account when it's not used
+ * then if unused_entries_index is not zero then its value will be returned
+ * otherwise I915_MOCS_PTE's value is returned in this case.
+ */
+static u16 get_entry_l3cc(const struct drm_i915_mocs_table *table,
+			  unsigned int index)
+{
+	if (index < table->size && table->table[index].used)
+		return table->table[index].l3cc_value;
+	return table->table[table->unused_entries_index].l3cc_value;
+}
+
+static u32 l3cc_combine(u16 low, u16 high)
+{
+	return low | (u32)high << 16;
+}
+
+#define for_each_l3cc(l3cc, t, i) \
+	for (i = 0; \
+	     i < ((t)->n_entries + 1) / 2 ? \
+	     (l3cc = l3cc_combine(get_entry_l3cc((t), 2 * i), \
+				  get_entry_l3cc((t), 2 * i + 1))), 1 : \
+	     0; \
+	     i++)
+
+static void init_l3cc_table(struct intel_gt *gt,
+			    const struct drm_i915_mocs_table *table)
+{
+	unsigned long flags;
+	unsigned int i;
+	u32 l3cc;
+
+	intel_gt_mcr_lock(gt, &flags);
+	for_each_l3cc(l3cc, table, i)
+		if (GRAPHICS_VER_FULL(gt->i915) >= IP_VER(12, 50))
+			intel_gt_mcr_multicast_write_fw(gt, XEHP_LNCFCMOCS(i), l3cc);
+		else
+			intel_uncore_write_fw(gt->uncore, GEN9_LNCFCMOCS(i), l3cc);
+	intel_gt_mcr_unlock(gt, flags);
+}
+
+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);
+
+	flags = get_mocs_settings(engine->i915, &table);
+	if (!flags)
+		return;
+
+	/* Platforms with global MOCS do not need per-engine initialization. */
+	if (flags & HAS_ENGINE_MOCS)
+		init_mocs_table(engine, &table);
+
+	if (flags & HAS_RENDER_L3CC && engine->class == RENDER_CLASS)
+		init_l3cc_table(engine->gt, &table);
+}
+
+static u32 global_mocs_offset(void)
+{
+	return i915_mmio_reg_offset(GEN12_GLOBAL_MOCS(0));
+}
+
+void intel_set_mocs_index(struct intel_gt *gt)
+{
+	struct drm_i915_mocs_table table;
+
+	get_mocs_settings(gt->i915, &table);
+	gt->mocs.uc_index = table.uc_index;
+	if (HAS_L3_CCS_READ(gt->i915))
+		gt->mocs.wb_index = table.wb_index;
+}
+
+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
+	 */
+	flags = get_mocs_settings(gt->i915, &table);
+	if (flags & HAS_GLOBAL_MOCS)
+		__init_mocs_table(gt->uncore, &table, global_mocs_offset());
+
+	/*
+	 * Initialize the L3CC table as part of mocs initalization to make
+	 * sure the LNCFCMOCSx registers are programmed for the subsequent
+	 * memory transactions including guc transactions
+	 */
+	if (flags & HAS_RENDER_L3CC)
+		init_l3cc_table(gt, &table);
+}
+
+#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
+#include "selftest_mocs.c"
+#endif