1 files changed, 14 insertions, 53 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 7c367ba8d9dc..c481b56fa67d 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -546,47 +546,6 @@ static const u8 gen12_rcs_offsets[] = {
 	END
 };
 
-static const u8 xehp_rcs_offsets[] = {
-	NOP(1),
-	LRI(13, POSTED),
-	REG16(0x244),
-	REG(0x034),
-	REG(0x030),
-	REG(0x038),
-	REG(0x03c),
-	REG(0x168),
-	REG(0x140),
-	REG(0x110),
-	REG(0x1c0),
-	REG(0x1c4),
-	REG(0x1c8),
-	REG(0x180),
-	REG16(0x2b4),
-
-	NOP(5),
-	LRI(9, POSTED),
-	REG16(0x3a8),
-	REG16(0x28c),
-	REG16(0x288),
-	REG16(0x284),
-	REG16(0x280),
-	REG16(0x27c),
-	REG16(0x278),
-	REG16(0x274),
-	REG16(0x270),
-
-	LRI(3, POSTED),
-	REG(0x1b0),
-	REG16(0x5a8),
-	REG16(0x5ac),
-
-	NOP(6),
-	LRI(1, 0),
-	REG(0x0c8),
-
-	END
-};
-
 static const u8 dg2_rcs_offsets[] = {
 	NOP(1),
 	LRI(15, POSTED),
@@ -695,8 +654,6 @@ static const u8 *reg_offsets(const struct intel_engine_cs *engine)
 			return mtl_rcs_offsets;
 		else if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 			return dg2_rcs_offsets;
-		else if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50))
-			return xehp_rcs_offsets;
 		else if (GRAPHICS_VER(engine->i915) >= 12)
 			return gen12_rcs_offsets;
 		else if (GRAPHICS_VER(engine->i915) >= 11)
@@ -719,7 +676,7 @@ static const u8 *reg_offsets(const struct intel_engine_cs *engine)
 
 static int lrc_ring_mi_mode(const struct intel_engine_cs *engine)
 {
-	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50))
+	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 		return 0x70;
 	else if (GRAPHICS_VER(engine->i915) >= 12)
 		return 0x60;
@@ -733,7 +690,7 @@ static int lrc_ring_mi_mode(const struct intel_engine_cs *engine)
 
 static int lrc_ring_bb_offset(const struct intel_engine_cs *engine)
 {
-	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50))
+	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 		return 0x80;
 	else if (GRAPHICS_VER(engine->i915) >= 12)
 		return 0x70;
@@ -748,7 +705,7 @@ static int lrc_ring_bb_offset(const struct intel_engine_cs *engine)
 
 static int lrc_ring_gpr0(const struct intel_engine_cs *engine)
 {
-	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50))
+	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 		return 0x84;
 	else if (GRAPHICS_VER(engine->i915) >= 12)
 		return 0x74;
@@ -794,8 +751,7 @@ static int lrc_ring_indirect_offset(const struct intel_engine_cs *engine)
 
 static int lrc_ring_cmd_buf_cctl(const struct intel_engine_cs *engine)
 {
-
-	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50))
+	if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 		/*
 		 * Note that the CSFE context has a dummy slot for CMD_BUF_CCTL
 		 * simply to match the RCS context image layout.
@@ -863,8 +819,10 @@ static bool ctx_needs_runalone(const struct intel_context *ce)
 	bool ctx_is_protected = false;
 
 	/*
-	 * On MTL and newer platforms, protected contexts require setting
-	 * the LRC run-alone bit or else the encryption will not happen.
+	 * Wa_14019159160 - Case 2.
+	 * On some platforms, protected contexts require setting
+	 * the LRC run-alone bit or else the encryption/decryption will not happen.
+	 * NOTE: Case 2 only applies to PXP use-case of said workaround.
 	 */
 	if (GRAPHICS_VER_FULL(ce->engine->i915) >= IP_VER(12, 70) &&
 	    (ce->engine->class == COMPUTE_CLASS || ce->engine->class == RENDER_CLASS)) {
@@ -893,6 +851,7 @@ static void init_common_regs(u32 * const regs,
 	if (GRAPHICS_VER(engine->i915) < 11)
 		ctl |= _MASKED_BIT_DISABLE(CTX_CTRL_ENGINE_CTX_SAVE_INHIBIT |
 					   CTX_CTRL_RS_CTX_ENABLE);
+	/* Wa_14019159160 - Case 2.*/
 	if (ctx_needs_runalone(ce))
 		ctl |= _MASKED_BIT_ENABLE(GEN12_CTX_CTRL_RUNALONE_MODE);
 	regs[CTX_CONTEXT_CONTROL] = ctl;
@@ -1060,9 +1019,8 @@ void lrc_init_state(struct intel_context *ce,
 
 	set_redzone(state, engine);
 
-	if (engine->default_state) {
-		shmem_read(engine->default_state, 0,
-			   state, engine->context_size);
+	if (ce->default_state) {
+		shmem_read(ce->default_state, 0, state, engine->context_size);
 		__set_bit(CONTEXT_VALID_BIT, &ce->flags);
 		inhibit = false;
 	}
@@ -1174,6 +1132,9 @@ int lrc_alloc(struct intel_context *ce, struct intel_engine_cs *engine)
 
 	GEM_BUG_ON(ce->state);
 
+	if (!intel_context_has_own_state(ce))
+		ce->default_state = engine->default_state;
+
 	vma = __lrc_alloc_state(ce, engine);
 	if (IS_ERR(vma))
 		return PTR_ERR(vma);