drm/i915: Make i915_coherent_map_type GT-centric

Refactor i915_coherent_map_type to be GT-centric rather than
device-centric.  Each GT may require different coherency
handling due to hardware workarounds.

Since the function now takes a GT instead of the i915, the function is
renamed and moved to the gt folder.
Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Acked-by: Fei Yang <fei.yang@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230801153242.2445478-3-jonathan.cavitt@intel.com
Link: https://patchwork.freedesktop.org/patch/msgid/20230807121957.598420-3-andi.shyti@linux.intel.com

drivers/gpu/drm/i915/display/intel_hdcp_gsc.c

@@ -6,6 +6,7 @@
 #include <drm/i915_hdcp_interface.h>
 
 #include "gem/i915_gem_region.h"
+#include "gt/intel_gt.h"
 #include "gt/uc/intel_gsc_uc_heci_cmd_submit.h"
 #include "i915_drv.h"
 #include "i915_utils.h"
@@ -632,7 +633,7 @@ static int intel_hdcp_gsc_initialize_message(struct drm_i915_private *i915,
 		return PTR_ERR(obj);
 	}
 
-	cmd_in = i915_gem_object_pin_map_unlocked(obj, i915_coherent_map_type(i915, obj, true));
+	cmd_in = i915_gem_object_pin_map_unlocked(obj, intel_gt_coherent_map_type(gt, obj, true));
 	if (IS_ERR(cmd_in)) {
 		drm_err(&i915->drm, "Failed to map gsc message page!\n");
 		err = PTR_ERR(cmd_in);

drivers/gpu/drm/i915/gem/i915_gem_object.h

@@ -716,10 +716,6 @@ void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
 void *__must_check i915_gem_object_pin_map_unlocked(struct drm_i915_gem_object *obj,
 						    enum i915_map_type type);
 
-enum i915_map_type i915_coherent_map_type(struct drm_i915_private *i915,
-					  struct drm_i915_gem_object *obj,
-					  bool always_coherent);
-
 void __i915_gem_object_flush_map(struct drm_i915_gem_object *obj,
 				 unsigned long offset,
 				 unsigned long size);

drivers/gpu/drm/i915/gem/i915_gem_pages.c

@@ -468,21 +468,6 @@ void *i915_gem_object_pin_map_unlocked(struct drm_i915_gem_object *obj,
 	return ret;
 }
 
-enum i915_map_type i915_coherent_map_type(struct drm_i915_private *i915,
-					  struct drm_i915_gem_object *obj,
-					  bool always_coherent)
-{
-	/*
-	 * Wa_22016122933: always return I915_MAP_WC for MTL
-	 */
-	if (i915_gem_object_is_lmem(obj) || IS_METEORLAKE(i915))
-		return I915_MAP_WC;
-	if (HAS_LLC(i915) || always_coherent)
-		return I915_MAP_WB;
-	else
-		return I915_MAP_WC;
-}
-
 void __i915_gem_object_flush_map(struct drm_i915_gem_object *obj,
 				 unsigned long offset,
 				 unsigned long size)

drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c

@@ -13,12 +13,12 @@
 #include "selftests/igt_spinner.h"
 
 static int igt_fill_check_buffer(struct drm_i915_gem_object *obj,
+				 struct intel_gt *gt,
 				 bool fill)
 {
-	struct drm_i915_private *i915 = to_i915(obj->base.dev);
 	unsigned int i, count = obj->base.size / sizeof(u32);
 	enum i915_map_type map_type =
-		i915_coherent_map_type(i915, obj, false);
+		intel_gt_coherent_map_type(gt, obj, false);
 	u32 *cur;
 	int err = 0;
 
@@ -66,7 +66,7 @@ static int igt_create_migrate(struct intel_gt *gt, enum intel_region_id src,
 		if (err)
 			continue;
 
-		err = igt_fill_check_buffer(obj, true);
+		err = igt_fill_check_buffer(obj, gt, true);
 		if (err)
 			continue;
 
@@ -86,7 +86,7 @@ static int igt_create_migrate(struct intel_gt *gt, enum intel_region_id src,
 		if (err)
 			continue;
 
-		err = igt_fill_check_buffer(obj, false);
+		err = igt_fill_check_buffer(obj, gt, false);
 	}
 	i915_gem_object_put(obj);
 
@@ -233,7 +233,7 @@ static int __igt_lmem_pages_migrate(struct intel_gt *gt,
 			continue;
 
 		if (!vma) {
-			err = igt_fill_check_buffer(obj, true);
+			err = igt_fill_check_buffer(obj, gt, true);
 			if (err)
 				continue;
 		}
@@ -276,7 +276,7 @@ static int __igt_lmem_pages_migrate(struct intel_gt *gt,
 		if (err)
 			goto out_unlock;
 	} else {
-		err = igt_fill_check_buffer(obj, false);
+		err = igt_fill_check_buffer(obj, gt, false);
 	}
 
 out_unlock:

drivers/gpu/drm/i915/gt/intel_engine_pm.c

@@ -39,7 +39,7 @@ static void dbg_poison_ce(struct intel_context *ce)
 
 	if (ce->state) {
 		struct drm_i915_gem_object *obj = ce->state->obj;
-		int type = i915_coherent_map_type(ce->engine->i915, obj, true);
+		int type = intel_gt_coherent_map_type(ce->engine->gt, obj, true);
 		void *map;
 
 		if (!i915_gem_object_trylock(obj, NULL))

drivers/gpu/drm/i915/gt/intel_gt.c

@@ -1003,3 +1003,18 @@ void intel_gt_info_print(const struct intel_gt_info *info,
 
 	intel_sseu_dump(&info->sseu, p);
 }
+
+enum i915_map_type intel_gt_coherent_map_type(struct intel_gt *gt,
+					      struct drm_i915_gem_object *obj,
+					      bool always_coherent)
+{
+	/*
+	 * Wa_22016122933: always return I915_MAP_WC for MTL
+	 */
+	if (i915_gem_object_is_lmem(obj) || IS_METEORLAKE(gt->i915))
+		return I915_MAP_WC;
+	if (HAS_LLC(gt->i915) || always_coherent)
+		return I915_MAP_WB;
+	else
+		return I915_MAP_WC;
+}

drivers/gpu/drm/i915/gt/intel_gt.h

@@ -107,4 +107,8 @@ void intel_gt_info_print(const struct intel_gt_info *info,
 
 void intel_gt_watchdog_work(struct work_struct *work);
 
+enum i915_map_type intel_gt_coherent_map_type(struct intel_gt *gt,
+					      struct drm_i915_gem_object *obj,
+					      bool always_coherent);
+
 #endif /* __INTEL_GT_H__ */

drivers/gpu/drm/i915/gt/intel_gtt.c

@@ -89,7 +89,7 @@ int map_pt_dma(struct i915_address_space *vm, struct drm_i915_gem_object *obj)
 	enum i915_map_type type;
 	void *vaddr;
 
-	type = i915_coherent_map_type(vm->i915, obj, true);
+	type = intel_gt_coherent_map_type(vm->gt, obj, true);
 	vaddr = i915_gem_object_pin_map_unlocked(obj, type);
 	if (IS_ERR(vaddr))
 		return PTR_ERR(vaddr);
@@ -103,7 +103,7 @@ int map_pt_dma_locked(struct i915_address_space *vm, struct drm_i915_gem_object
 	enum i915_map_type type;
 	void *vaddr;
 
-	type = i915_coherent_map_type(vm->i915, obj, true);
+	type = intel_gt_coherent_map_type(vm->gt, obj, true);
 	vaddr = i915_gem_object_pin_map(obj, type);
 	if (IS_ERR(vaddr))
 		return PTR_ERR(vaddr);

drivers/gpu/drm/i915/gt/intel_lrc.c

@@ -1191,9 +1191,9 @@ lrc_pre_pin(struct intel_context *ce,
 	GEM_BUG_ON(!i915_vma_is_pinned(ce->state));
 
 	*vaddr = i915_gem_object_pin_map(ce->state->obj,
-					 i915_coherent_map_type(ce->engine->i915,
-								ce->state->obj,
-								false) |
+					 intel_gt_coherent_map_type(ce->engine->gt,
+								    ce->state->obj,
+								    false) |
 					 I915_MAP_OVERRIDE);
 
 	return PTR_ERR_OR_ZERO(*vaddr);

drivers/gpu/drm/i915/gt/intel_ring.c

@@ -13,6 +13,7 @@
 #include "intel_engine_regs.h"
 #include "intel_gpu_commands.h"
 #include "intel_ring.h"
+#include "intel_gt.h"
 #include "intel_timeline.h"
 
 unsigned int intel_ring_update_space(struct intel_ring *ring)
@@ -56,7 +57,7 @@ int intel_ring_pin(struct intel_ring *ring, struct i915_gem_ww_ctx *ww)
 	if (i915_vma_is_map_and_fenceable(vma) && !HAS_LLC(vma->vm->i915)) {
 		addr = (void __force *)i915_vma_pin_iomap(vma);
 	} else {
-		int type = i915_coherent_map_type(vma->vm->i915, vma->obj, false);
+		int type = intel_gt_coherent_map_type(vma->vm->gt, vma->obj, false);
 
 		addr = i915_gem_object_pin_map(vma->obj, type);
 	}

drivers/gpu/drm/i915/gt/selftest_context.c

@@ -88,8 +88,9 @@ static int __live_context_size(struct intel_engine_cs *engine)
 		goto err;
 
 	vaddr = i915_gem_object_pin_map_unlocked(ce->state->obj,
-						 i915_coherent_map_type(engine->i915,
-									ce->state->obj, false));
+						 intel_gt_coherent_map_type(engine->gt,
+									    ce->state->obj,
+									    false));
 	if (IS_ERR(vaddr)) {
 		err = PTR_ERR(vaddr);
 		intel_context_unpin(ce);

drivers/gpu/drm/i915/gt/selftest_hangcheck.c

@@ -73,7 +73,7 @@ static int hang_init(struct hang *h, struct intel_gt *gt)
 	h->seqno = memset(vaddr, 0xff, PAGE_SIZE);
 
 	vaddr = i915_gem_object_pin_map_unlocked(h->obj,
-						 i915_coherent_map_type(gt->i915, h->obj, false));
+						 intel_gt_coherent_map_type(gt, h->obj, false));
 	if (IS_ERR(vaddr)) {
 		err = PTR_ERR(vaddr);
 		goto err_unpin_hws;
@@ -119,7 +119,7 @@ hang_create_request(struct hang *h, struct intel_engine_cs *engine)
 		return ERR_CAST(obj);
 	}
 
-	vaddr = i915_gem_object_pin_map_unlocked(obj, i915_coherent_map_type(gt->i915, obj, false));
+	vaddr = i915_gem_object_pin_map_unlocked(obj, intel_gt_coherent_map_type(gt, obj, false));
 	if (IS_ERR(vaddr)) {
 		i915_gem_object_put(obj);
 		i915_vm_put(vm);

drivers/gpu/drm/i915/gt/selftest_lrc.c

@@ -1292,9 +1292,9 @@ static int compare_isolation(struct intel_engine_cs *engine,
 	}
 
 	lrc = i915_gem_object_pin_map_unlocked(ce->state->obj,
-					       i915_coherent_map_type(engine->i915,
-								      ce->state->obj,
-								      false));
+					       intel_gt_coherent_map_type(engine->gt,
+									  ce->state->obj,
+									  false));
 	if (IS_ERR(lrc)) {
 		err = PTR_ERR(lrc);
 		goto err_B1;

drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c

@@ -282,7 +282,6 @@ static int gsc_fw_load(struct intel_gsc_uc *gsc)
 static int gsc_fw_load_prepare(struct intel_gsc_uc *gsc)
 {
 	struct intel_gt *gt = gsc_uc_to_gt(gsc);
-	struct drm_i915_private *i915 = gt->i915;
 	void *src;
 
 	if (!gsc->local)
@@ -292,7 +291,7 @@ static int gsc_fw_load_prepare(struct intel_gsc_uc *gsc)
 		return -ENOSPC;
 
 	src = i915_gem_object_pin_map_unlocked(gsc->fw.obj,
-					       i915_coherent_map_type(i915, gsc->fw.obj, true));
+					       intel_gt_coherent_map_type(gt, gsc->fw.obj, true));
 	if (IS_ERR(src))
 		return PTR_ERR(src);
 

drivers/gpu/drm/i915/gt/uc/intel_guc.c

@@ -792,8 +792,8 @@ int intel_guc_allocate_and_map_vma(struct intel_guc *guc, u32 size,
 		return PTR_ERR(vma);
 
 	vaddr = i915_gem_object_pin_map_unlocked(vma->obj,
-						 i915_coherent_map_type(guc_to_gt(guc)->i915,
-									vma->obj, true));
+						 intel_gt_coherent_map_type(guc_to_gt(guc),
+									    vma->obj, true));
 	if (IS_ERR(vaddr)) {
 		i915_vma_unpin_and_release(&vma, 0);
 		return PTR_ERR(vaddr);

drivers/gpu/drm/i915/gt/uc/intel_huc_fw.c

@@ -27,7 +27,6 @@ struct mtl_huc_auth_msg_out {
 int intel_huc_fw_auth_via_gsccs(struct intel_huc *huc)
 {
 	struct intel_gt *gt = huc_to_gt(huc);
-	struct drm_i915_private *i915 = gt->i915;
 	struct drm_i915_gem_object *obj;
 	struct mtl_huc_auth_msg_in *msg_in;
 	struct mtl_huc_auth_msg_out *msg_out;
@@ -43,7 +42,7 @@ int intel_huc_fw_auth_via_gsccs(struct intel_huc *huc)
 	pkt_offset = i915_ggtt_offset(huc->heci_pkt);
 
 	pkt_vaddr = i915_gem_object_pin_map_unlocked(obj,
-						     i915_coherent_map_type(i915, obj, true));
+						     intel_gt_coherent_map_type(gt, obj, true));
 	if (IS_ERR(pkt_vaddr))
 		return PTR_ERR(pkt_vaddr);
 

drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c

@@ -11,6 +11,7 @@
 #include <drm/drm_print.h>
 
 #include "gem/i915_gem_lmem.h"
+#include "gt/intel_gt.h"
 #include "gt/intel_gt_print.h"
 #include "intel_gsc_binary_headers.h"
 #include "intel_gsc_fw.h"
@@ -1197,7 +1198,7 @@ static int uc_fw_rsa_data_create(struct intel_uc_fw *uc_fw)
 		return PTR_ERR(vma);
 
 	vaddr = i915_gem_object_pin_map_unlocked(vma->obj,
-						 i915_coherent_map_type(gt->i915, vma->obj, true));
+						 intel_gt_coherent_map_type(gt, vma->obj, true));
 	if (IS_ERR(vaddr)) {
 		i915_vma_unpin_and_release(&vma, 0);
 		err = PTR_ERR(vaddr);

drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c

@@ -6,6 +6,7 @@
 #include "gem/i915_gem_internal.h"
 
 #include "gt/intel_context.h"
+#include "gt/intel_gt.h"
 #include "gt/uc/intel_gsc_fw.h"
 #include "gt/uc/intel_gsc_uc_heci_cmd_submit.h"
 
@@ -336,7 +337,7 @@ gsccs_create_buffer(struct intel_gt *gt,
 	}
 
 	/* return a virtual pointer */
-	*map = i915_gem_object_pin_map_unlocked(obj, i915_coherent_map_type(i915, obj, true));
+	*map = i915_gem_object_pin_map_unlocked(obj, intel_gt_coherent_map_type(gt, obj, true));
 	if (IS_ERR(*map)) {
 		drm_err(&i915->drm, "Failed to map gsccs backend %s.\n", bufname);
 		err = PTR_ERR(*map);

drivers/gpu/drm/i915/pxp/intel_pxp_tee.c

@@ -11,6 +11,7 @@
 #include "gem/i915_gem_lmem.h"
 
 #include "i915_drv.h"
+#include "gt/intel_gt.h"
 
 #include "intel_pxp.h"
 #include "intel_pxp_cmd_interface_42.h"
@@ -245,7 +246,9 @@ static int alloc_streaming_command(struct intel_pxp *pxp)
 	}
 
 	/* map the lmem into the virtual memory pointer */
-	cmd = i915_gem_object_pin_map_unlocked(obj, i915_coherent_map_type(i915, obj, true));
+	cmd = i915_gem_object_pin_map_unlocked(obj,
+					       intel_gt_coherent_map_type(pxp->ctrl_gt,
+									  obj, true));
 	if (IS_ERR(cmd)) {
 		drm_err(&i915->drm, "Failed to map gsc message page!\n");
 		err = PTR_ERR(cmd);

drivers/gpu/drm/i915/selftests/igt_spinner.c

@@ -97,7 +97,7 @@ int igt_spinner_pin(struct igt_spinner *spin,
 	if (!spin->batch) {
 		unsigned int mode;
 
-		mode = i915_coherent_map_type(spin->gt->i915, spin->obj, false);
+		mode = intel_gt_coherent_map_type(spin->gt, spin->obj, false);
 		vaddr = igt_spinner_pin_obj(ce, ww, spin->obj, mode, &spin->batch_vma);
 		if (IS_ERR(vaddr))
 			return PTR_ERR(vaddr);