From: Venkata Sandeep Dhanalakota <venkata.s.dhanalak...@intel.com>

Determine the possible coherent map type based on object location,
and if target has llc or if user requires an always coherent
mapping.

Cc: Matthew Auld <matthew.a...@intel.com>
Cc: CQ Tang <cq.t...@intel.com>
Suggested-by: Michal Wajdeczko <michal.wajdec...@intel.com>
Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalak...@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c    |  3 ++-
 drivers/gpu/drm/i915/gt/intel_engine_pm.c    |  2 +-
 drivers/gpu/drm/i915/gt/intel_lrc.c          |  4 +++-
 drivers/gpu/drm/i915/gt/intel_ring.c         |  9 ++++++---
 drivers/gpu/drm/i915/gt/selftest_context.c   |  3 ++-
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c |  4 ++--
 drivers/gpu/drm/i915/gt/selftest_lrc.c       |  4 +++-
 drivers/gpu/drm/i915/gt/uc/intel_guc.c       |  4 +++-
 drivers/gpu/drm/i915/gt/uc/intel_huc.c       |  4 +++-
 drivers/gpu/drm/i915/i915_drv.h              | 11 +++++++++--
 drivers/gpu/drm/i915/selftests/igt_spinner.c |  4 ++--
 11 files changed, 36 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c 
b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index efe935f80c1a..b79568d370f5 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -664,7 +664,8 @@ static int init_status_page(struct intel_engine_cs *engine)
        if (ret)
                goto err;
 
-       vaddr = i915_gem_object_pin_map(obj, I915_MAP_WB);
+       vaddr = i915_gem_object_pin_map(obj,
+                                       i915_coherent_map_type(engine->i915, 
obj, true));
        if (IS_ERR(vaddr)) {
                ret = PTR_ERR(vaddr);
                goto err_unpin;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c 
b/drivers/gpu/drm/i915/gt/intel_engine_pm.c
index 7c9af86fdb1e..47f4397095e5 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c
@@ -23,7 +23,7 @@ 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);
+               int type = i915_coherent_map_type(ce->engine->i915, obj, true);
                void *map;
 
                if (!i915_gem_object_trylock(obj))
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c 
b/drivers/gpu/drm/i915/gt/intel_lrc.c
index e86897cde984..aafe2a4df496 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -903,7 +903,9 @@ 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) |
+                                        
i915_coherent_map_type(ce->engine->i915,
+                                                               ce->state->obj,
+                                                               false) |
                                         I915_MAP_OVERRIDE);
 
        return PTR_ERR_OR_ZERO(*vaddr);
diff --git a/drivers/gpu/drm/i915/gt/intel_ring.c 
b/drivers/gpu/drm/i915/gt/intel_ring.c
index aee0a77c77e0..3cf6c7e68108 100644
--- a/drivers/gpu/drm/i915/gt/intel_ring.c
+++ b/drivers/gpu/drm/i915/gt/intel_ring.c
@@ -53,9 +53,12 @@ int intel_ring_pin(struct intel_ring *ring, struct 
i915_gem_ww_ctx *ww)
 
        if (i915_vma_is_map_and_fenceable(vma))
                addr = (void __force *)i915_vma_pin_iomap(vma);
-       else
-               addr = i915_gem_object_pin_map(vma->obj,
-                                              
i915_coherent_map_type(vma->vm->i915));
+       else {
+               int type = i915_coherent_map_type(vma->vm->i915, vma->obj, 
false);
+
+               addr = i915_gem_object_pin_map(vma->obj, type);
+       }
+
        if (IS_ERR(addr)) {
                ret = PTR_ERR(addr);
                goto err_ring;
diff --git a/drivers/gpu/drm/i915/gt/selftest_context.c 
b/drivers/gpu/drm/i915/gt/selftest_context.c
index b9bdd1d23243..26685b927169 100644
--- a/drivers/gpu/drm/i915/gt/selftest_context.c
+++ b/drivers/gpu/drm/i915/gt/selftest_context.c
@@ -88,7 +88,8 @@ 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));
+                                                
i915_coherent_map_type(engine->i915,
+                                                                       
ce->state->obj, false));
        if (IS_ERR(vaddr)) {
                err = PTR_ERR(vaddr);
                intel_context_unpin(ce);
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c 
b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index 746985971c3a..5b63d4df8c93 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -69,7 +69,7 @@ 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));
+                                                
i915_coherent_map_type(gt->i915, h->obj, false));
        if (IS_ERR(vaddr)) {
                err = PTR_ERR(vaddr);
                goto err_unpin_hws;
@@ -130,7 +130,7 @@ 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));
+       vaddr = i915_gem_object_pin_map_unlocked(obj, 
i915_coherent_map_type(gt->i915, obj, false));
        if (IS_ERR(vaddr)) {
                i915_gem_object_put(obj);
                i915_vm_put(vm);
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c 
b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 85e7df6a5123..d8f6623524e8 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -1221,7 +1221,9 @@ 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));
+                                              
i915_coherent_map_type(engine->i915,
+                                                                     
ce->state->obj,
+                                                                     false));
        if (IS_ERR(lrc)) {
                err = PTR_ERR(lrc);
                goto err_B1;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c 
b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index 78305b2ec89d..adae04c47aab 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -682,7 +682,9 @@ int intel_guc_allocate_and_map_vma(struct intel_guc *guc, 
u32 size,
        if (IS_ERR(vma))
                return PTR_ERR(vma);
 
-       vaddr = i915_gem_object_pin_map_unlocked(vma->obj, I915_MAP_WB);
+       vaddr = i915_gem_object_pin_map_unlocked(vma->obj,
+                                                
i915_coherent_map_type(guc_to_gt(guc)->i915,
+                                                                       
vma->obj, true));
        if (IS_ERR(vaddr)) {
                i915_vma_unpin_and_release(&vma, 0);
                return PTR_ERR(vaddr);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c 
b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
index 2126dd81ac38..56d2144dc6a0 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
@@ -82,7 +82,9 @@ static int intel_huc_rsa_data_create(struct intel_huc *huc)
        if (IS_ERR(vma))
                return PTR_ERR(vma);
 
-       vaddr = i915_gem_object_pin_map_unlocked(vma->obj, I915_MAP_WB);
+       vaddr = i915_gem_object_pin_map_unlocked(vma->obj,
+                                                
i915_coherent_map_type(gt->i915,
+                                                                       
vma->obj, true));
        if (IS_ERR(vaddr)) {
                i915_vma_unpin_and_release(&vma, 0);
                return PTR_ERR(vaddr);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 69e43bf91a15..2abbc06712a4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -78,6 +78,7 @@
 #include "gem/i915_gem_context_types.h"
 #include "gem/i915_gem_shrinker.h"
 #include "gem/i915_gem_stolen.h"
+#include "gem/i915_gem_lmem.h"
 
 #include "gt/intel_engine.h"
 #include "gt/intel_gt_types.h"
@@ -1921,9 +1922,15 @@ static inline int intel_hws_csb_write_index(struct 
drm_i915_private *i915)
 }
 
 static inline enum i915_map_type
-i915_coherent_map_type(struct drm_i915_private *i915)
+i915_coherent_map_type(struct drm_i915_private *i915,
+                      struct drm_i915_gem_object *obj, bool always_coherent)
 {
-       return HAS_LLC(i915) ? I915_MAP_WB : I915_MAP_WC;
+       if (i915_gem_object_is_lmem(obj))
+               return I915_MAP_WC;
+       if (HAS_LLC(i915) || always_coherent)
+               return I915_MAP_WB;
+       else
+               return I915_MAP_WC;
 }
 
 #endif
diff --git a/drivers/gpu/drm/i915/selftests/igt_spinner.c 
b/drivers/gpu/drm/i915/selftests/igt_spinner.c
index cfbbe415b57c..5fe397b7d1d9 100644
--- a/drivers/gpu/drm/i915/selftests/igt_spinner.c
+++ b/drivers/gpu/drm/i915/selftests/igt_spinner.c
@@ -94,9 +94,9 @@ int igt_spinner_pin(struct igt_spinner *spin,
        }
 
        if (!spin->batch) {
-               unsigned int mode =
-                       i915_coherent_map_type(spin->gt->i915);
+               unsigned int mode;
 
+               mode = i915_coherent_map_type(spin->gt->i915, spin->obj, false);
                vaddr = igt_spinner_pin_obj(ce, ww, spin->obj, mode, 
&spin->batch_vma);
                if (IS_ERR(vaddr))
                        return PTR_ERR(vaddr);
-- 
2.26.3

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