[PATCH 69/70] drm/i915: Pass ww ctx to i915_gem_object_pin_pages
Maarten Lankhorst
maarten.lankhorst at linux.intel.com
Wed Mar 17 08:44:29 UTC 2021
This is the final part of passing ww ctx to the get_pages() callbacks.
Now we no longer have to implicitly get ww ctx by using get_ww_ctx.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_clflush.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 6 +++---
drivers/gpu/drm/i915/gem/i915_gem_domain.c | 21 ++++++++++++-------
.../gpu/drm/i915/gem/i915_gem_execbuffer.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_mman.c | 19 +++++++++++------
drivers/gpu/drm/i915/gem/i915_gem_object.h | 11 ++++++----
drivers/gpu/drm/i915/gem/i915_gem_pages.c | 14 +++++++------
drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 4 ++--
drivers/gpu/drm/i915/gt/intel_gtt.c | 4 ++--
drivers/gpu/drm/i915/i915_gem.c | 6 +++---
drivers/gpu/drm/i915/i915_vma.c | 7 ++++---
13 files changed, 60 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index af0395f7ab87..f3e88b8f0f20 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1153,7 +1153,7 @@ intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
if (!ret && phys_cursor)
ret = i915_gem_object_attach_phys(obj, alignment);
if (!ret)
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, &ww);
if (ret)
goto err;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_clflush.c b/drivers/gpu/drm/i915/gem/i915_gem_clflush.c
index e4c24558eaa8..109f5c8b802a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_clflush.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_clflush.c
@@ -55,7 +55,7 @@ static struct clflush *clflush_work_create(struct drm_i915_gem_object *obj)
if (!clflush)
return NULL;
- if (__i915_gem_object_get_pages(obj) < 0) {
+ if (__i915_gem_object_get_pages(obj, NULL) < 0) {
kfree(clflush);
return NULL;
}
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
index 5821524e391c..9e6d72a3e94b 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
@@ -25,7 +25,7 @@ static struct sg_table *i915_gem_map_dma_buf(struct dma_buf_attachment *attachme
struct scatterlist *src, *dst;
int ret, i;
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, NULL);
if (ret)
goto err;
@@ -130,7 +130,7 @@ static int i915_gem_begin_cpu_access(struct dma_buf *dma_buf, enum dma_data_dire
retry:
err = i915_gem_object_lock(obj, &ww);
if (!err)
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, &ww);
if (!err) {
i915_gem_object_set_to_cpu_domain(obj, write);
i915_gem_object_unpin_pages(obj);
@@ -154,7 +154,7 @@ static int i915_gem_end_cpu_access(struct dma_buf *dma_buf, enum dma_data_direct
retry:
err = i915_gem_object_lock(obj, &ww);
if (!err)
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, &ww);
if (!err) {
i915_gem_object_set_to_gtt_domain(obj, false);
i915_gem_object_unpin_pages(obj);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_domain.c b/drivers/gpu/drm/i915/gem/i915_gem_domain.c
index a5b3a21faf9c..85d3d3f4a77e 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_domain.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_domain.c
@@ -430,6 +430,7 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
struct drm_i915_gem_object *obj;
u32 read_domains = args->read_domains;
u32 write_domain = args->write_domain;
+ struct i915_gem_ww_ctx ww;
int err;
/* Only handle setting domains to types used by the CPU. */
@@ -470,7 +471,9 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
goto out;
}
- err = i915_gem_object_lock_interruptible(obj, NULL);
+ i915_gem_ww_ctx_init(&ww, true);
+retry:
+ err = i915_gem_object_lock_interruptible(obj, &ww);
if (err)
goto out;
@@ -483,9 +486,9 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
* continue to assume that the obj remained out of the CPU cached
* domain.
*/
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, &ww);
if (err)
- goto out_unlock;
+ goto out;
/*
* Already in the desired write domain? Nothing for us to do!
@@ -510,8 +513,6 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
out_unpin:
i915_gem_object_unpin_pages(obj);
-out_unlock:
- i915_gem_object_unlock(obj);
out_wait:
if (!err) {
err = i915_gem_object_wait(obj,
@@ -524,6 +525,12 @@ i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
}
out:
+ if (err == -EDEADLK) {
+ err = i915_gem_ww_ctx_backoff(&ww);
+ if (!err)
+ goto retry;
+ }
+ i915_gem_ww_ctx_fini(&ww);
i915_gem_object_put(obj);
return err;
}
@@ -545,7 +552,7 @@ int i915_gem_object_prepare_read(struct drm_i915_gem_object *obj,
assert_object_held(obj);
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, ww);
if (ret)
return ret;
@@ -590,7 +597,7 @@ int i915_gem_object_prepare_write(struct drm_i915_gem_object *obj,
assert_object_held(obj);
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, ww);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 3d50f2d17d3c..7e60e41d6c0c 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -2497,7 +2497,7 @@ static int eb_parse_pipeline(struct i915_execbuffer *eb,
pw->batch_map = i915_gem_object_pin_map(batch, &eb->ww, I915_MAP_WC);
if (IS_ERR(pw->batch_map)) {
- err = i915_gem_object_pin_pages(batch);
+ err = i915_gem_object_pin_pages(batch, &eb->ww);
if (err)
goto err_unmap_shadow;
pw->batch_map = NULL;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index edac8ee3be9a..8690bf434407 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -239,6 +239,7 @@ static vm_fault_t vm_fault_cpu(struct vm_fault *vmf)
struct i915_mmap_offset *mmo = area->vm_private_data;
struct drm_i915_gem_object *obj = mmo->obj;
resource_size_t iomap;
+ struct i915_gem_ww_ctx ww;
int err;
/* Sanity check that we allow writing into this object */
@@ -246,10 +247,11 @@ static vm_fault_t vm_fault_cpu(struct vm_fault *vmf)
area->vm_flags & VM_WRITE))
return VM_FAULT_SIGBUS;
- if (i915_gem_object_lock_interruptible(obj, NULL))
- return VM_FAULT_NOPAGE;
-
- err = i915_gem_object_pin_pages(obj);
+ i915_gem_ww_ctx_init(&ww, true);
+retry:
+ err = i915_gem_object_lock(obj, &ww);
+ if (!err)
+ err = i915_gem_object_pin_pages(obj, &ww);
if (err)
goto out;
@@ -272,7 +274,12 @@ static vm_fault_t vm_fault_cpu(struct vm_fault *vmf)
i915_gem_object_unpin_pages(obj);
out:
- i915_gem_object_unlock(obj);
+ if (err == -EDEADLK) {
+ err = i915_gem_ww_ctx_backoff(&ww);
+ if (!err)
+ goto retry;
+ }
+ i915_gem_ww_ctx_fini(&ww);
return i915_error_to_vmf_fault(err);
}
@@ -313,7 +320,7 @@ static vm_fault_t vm_fault_gtt(struct vm_fault *vmf)
goto err_rpm;
}
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, &ww);
if (ret)
goto err_rpm;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
index 9bd9b47dcc8d..64819b4e592a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
@@ -378,18 +378,21 @@ void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
struct sg_table *pages,
unsigned int sg_page_sizes);
-int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
-int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
+int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj,
+ struct i915_gem_ww_ctx *ww);
+int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj,
+ struct i915_gem_ww_ctx *ww);
static inline int __must_check
-i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
+i915_gem_object_pin_pages(struct drm_i915_gem_object *obj,
+ struct i915_gem_ww_ctx *ww)
{
assert_object_held(obj);
if (atomic_inc_not_zero(&obj->mm.pages_pin_count))
return 0;
- return __i915_gem_object_get_pages(obj);
+ return __i915_gem_object_get_pages(obj, ww);
}
int i915_gem_object_pin_pages_unlocked(struct drm_i915_gem_object *obj);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
index 232832398457..94cc33ea483d 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
@@ -87,7 +87,8 @@ void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
}
}
-int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
+int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj,
+ struct i915_gem_ww_ctx *ww)
{
struct drm_i915_private *i915 = to_i915(obj->base.dev);
int err;
@@ -100,7 +101,7 @@ int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
return -EFAULT;
}
- err = obj->ops->get_pages(obj, NULL);
+ err = obj->ops->get_pages(obj, ww);
GEM_BUG_ON(!err && !i915_gem_object_has_pages(obj));
return err;
@@ -113,7 +114,8 @@ int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
* either as a result of memory pressure (reaping pages under the shrinker)
* or as the object is itself released.
*/
-int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
+int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj,
+ struct i915_gem_ww_ctx *ww)
{
int err;
@@ -124,7 +126,7 @@ int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
if (unlikely(!i915_gem_object_has_pages(obj))) {
GEM_BUG_ON(i915_gem_object_has_pinned_pages(obj));
- err = ____i915_gem_object_get_pages(obj);
+ err = ____i915_gem_object_get_pages(obj, ww);
if (err)
return err;
@@ -144,7 +146,7 @@ int i915_gem_object_pin_pages_unlocked(struct drm_i915_gem_object *obj)
retry:
err = i915_gem_object_lock(obj, &ww);
if (!err)
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, &ww);
if (err == -EDEADLK) {
err = i915_gem_ww_ctx_backoff(&ww);
@@ -362,7 +364,7 @@ void *i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
if (unlikely(!i915_gem_object_has_pages(obj))) {
GEM_BUG_ON(i915_gem_object_has_pinned_pages(obj));
- err = ____i915_gem_object_get_pages(obj);
+ err = ____i915_gem_object_get_pages(obj, ww);
if (err)
return ERR_PTR(err);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index 5b732b0fe5ce..48b2258091c3 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -641,7 +641,7 @@ static int __i915_gem_object_create_stolen(struct intel_memory_region *mem,
if (WARN_ON(!i915_gem_object_trylock(obj)))
return -EBUSY;
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, NULL);
if (!err)
i915_gem_object_init_memory_region(obj, mem);
i915_gem_object_unlock(obj);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
index 693d0dbe9ed2..71c928c789b3 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
@@ -261,7 +261,7 @@ static int i915_gem_object_userptr_unbind(struct drm_i915_gem_object *obj, bool
i915_gem_userptr_put_pages(obj, pages);
if (get_pages)
- err = ____i915_gem_object_get_pages(obj);
+ err = ____i915_gem_object_get_pages(obj, NULL);
return err;
}
@@ -390,7 +390,7 @@ int i915_gem_object_userptr_validate(struct drm_i915_gem_object *obj)
* it doesn't matter if we collide with the mmu notifier,
* and -EAGAIN handling is not required.
*/
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, NULL);
if (!err)
i915_gem_object_unpin_pages(obj);
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c
index 994e4ea28903..38c1ba203071 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.c
@@ -30,7 +30,7 @@ int pin_pt_dma(struct i915_address_space *vm, struct drm_i915_gem_object *obj)
int err;
i915_gem_object_lock(obj, NULL);
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, NULL);
i915_gem_object_unlock(obj);
if (err)
return err;
@@ -43,7 +43,7 @@ int pin_pt_dma_locked(struct i915_address_space *vm, struct drm_i915_gem_object
{
int err;
- err = i915_gem_object_pin_pages(obj);
+ err = i915_gem_object_pin_pages(obj, NULL);
if (err)
return err;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index a935c05809d5..49f0e459ee64 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -212,7 +212,7 @@ i915_gem_shmem_pread(struct drm_i915_gem_object *obj,
if (ret)
return ret;
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, NULL);
if (ret)
goto err_unlock;
@@ -311,7 +311,7 @@ static struct i915_vma *i915_gem_gtt_prepare(struct drm_i915_gem_object *obj,
vma = NULL;
}
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, &ww);
if (ret) {
if (drm_mm_node_allocated(node)) {
ggtt->vm.clear_range(&ggtt->vm, node->start, node->size);
@@ -633,7 +633,7 @@ i915_gem_shmem_pwrite(struct drm_i915_gem_object *obj,
if (ret)
return ret;
- ret = i915_gem_object_pin_pages(obj);
+ ret = i915_gem_object_pin_pages(obj, NULL);
if (ret)
goto err_unlock;
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index c5b9f30ac0a3..03291c032814 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -785,7 +785,8 @@ static bool try_qad_pin(struct i915_vma *vma, unsigned int flags)
return pinned;
}
-static int vma_get_pages(struct i915_vma *vma)
+static int vma_get_pages(struct i915_vma *vma,
+ struct i915_gem_ww_ctx *ww)
{
int err = 0;
@@ -798,7 +799,7 @@ static int vma_get_pages(struct i915_vma *vma)
if (!atomic_read(&vma->pages_count)) {
if (vma->obj) {
- err = i915_gem_object_pin_pages(vma->obj);
+ err = i915_gem_object_pin_pages(vma->obj, ww);
if (err)
goto unlock;
}
@@ -876,7 +877,7 @@ int i915_vma_pin_ww(struct i915_vma *vma, struct i915_gem_ww_ctx *ww,
if (try_qad_pin(vma, flags & I915_VMA_BIND_MASK))
return 0;
- err = vma_get_pages(vma);
+ err = vma_get_pages(vma, ww);
if (err)
return err;
--
2.31.0
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