We already have a couple of use-cases in the code and another one will
come in one of the later patches in the series.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: John Harrison <John.C.Harrison@xxxxxxxxx>
Cc: Matthew Brost <matthew.brost@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc.c | 34 +++++++++++++++++++
drivers/gpu/drm/i915/gt/uc/intel_guc.h | 2 ++
drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 21 +++---------
.../gpu/drm/i915/gt/uc/intel_guc_submission.c | 22 ++++--------
4 files changed, 47 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index 019ae6486e8d..12e0569372d0 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -689,3 +689,37 @@ struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size)
i915_gem_object_put(obj);
return vma;
}
+
+/**
+ * intel_guc_allocate_and_map_vma() - Allocate and map VMA for GuC usage
+ * @guc: the guc
+ * @size: size of area to allocate (both virtual space and memory)
+ * @out_vma: return variable for the allocated vma pointer
+ * @out_vaddr: return variable for the obj mapping
+ *
+ * This wrapper calls intel_guc_allocate_vma() and then maps the allocated
+ * object with I915_MAP_WB.
+ *
+ * Return: 0 if successful, a negative errno code otherwise.
+ */
+int intel_guc_allocate_and_map_vma(struct intel_guc *guc, u32 size,
+ struct i915_vma **out_vma, void **out_vaddr)
+{
+ struct i915_vma *vma;
+ void *vaddr;
+
+ vma = intel_guc_allocate_vma(guc, size);
+ if (IS_ERR(vma))
+ return PTR_ERR(vma);
+
+ vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB);
+ if (IS_ERR(vaddr)) {
+ i915_vma_unpin_and_release(&vma, 0);
+ return PTR_ERR(vaddr);
+ }
+
+ *out_vma = vma;
+ *out_vaddr = vaddr;
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
index e6400204a2bd..bf438f820c35 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
@@ -149,6 +149,8 @@ int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
int intel_guc_suspend(struct intel_guc *guc);
int intel_guc_resume(struct intel_guc *guc);
struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
+int intel_guc_allocate_and_map_vma(struct intel_guc *guc, u32 size,
+ struct i915_vma **out_vma, void **out_vaddr);
static inline bool intel_guc_is_supported(struct intel_guc *guc)
{
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
index ca6674b8e00c..6334d773c3e1 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
@@ -135,32 +135,19 @@ static void __guc_ads_init(struct intel_guc *guc)
int intel_guc_ads_create(struct intel_guc *guc)
{
const u32 size = PAGE_ALIGN(sizeof(struct __guc_ads_blob));
- struct i915_vma *vma;
- void *blob;
int ret;
GEM_BUG_ON(guc->ads_vma);
- vma = intel_guc_allocate_vma(guc, size);
- if (IS_ERR(vma))
- return PTR_ERR(vma);
+ ret = intel_guc_allocate_and_map_vma(guc, size, &guc->ads_vma,
+ (void **)&guc->ads_blob);
- blob = i915_gem_object_pin_map(vma->obj, I915_MAP_WB);
- if (IS_ERR(blob)) {
- ret = PTR_ERR(blob);
- goto err_vma;
- }
-
- guc->ads_vma = vma;
- guc->ads_blob = blob;
+ if (ret)
+ return ret;
__guc_ads_init(guc);
return 0;
-
-err_vma:
- i915_vma_unpin_and_release(&guc->ads_vma, 0);
- return ret;
}
void intel_guc_ads_destroy(struct intel_guc *guc)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 2b0de6a2a02e..6ac213ddbfa3 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -308,23 +308,15 @@ static void guc_proc_desc_fini(struct intel_guc_client *client)
static int guc_stage_desc_pool_create(struct intel_guc *guc)
{
- struct i915_vma *vma;
- void *vaddr;
-
- vma = intel_guc_allocate_vma(guc,
- PAGE_ALIGN(sizeof(struct guc_stage_desc) *
- GUC_MAX_STAGE_DESCRIPTORS));
- if (IS_ERR(vma))
- return PTR_ERR(vma);
+ u32 size = PAGE_ALIGN(sizeof(struct guc_stage_desc) *
+ GUC_MAX_STAGE_DESCRIPTORS);
+ int ret;
- vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB);
- if (IS_ERR(vaddr)) {
- i915_vma_unpin_and_release(&vma, 0);
- return PTR_ERR(vaddr);
- }
+ ret = intel_guc_allocate_and_map_vma(guc, size, &guc->stage_desc_pool,
+ &guc->stage_desc_pool_vaddr);
+ if (ret)
+ return ret;
- guc->stage_desc_pool = vma;
- guc->stage_desc_pool_vaddr = vaddr;
ida_init(&guc->stage_ids);
return 0;
--
2.23.0
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