[PATCH] drm: replace drm_[cm]alloc* by kvmalloc alternatives

From: Michal Hocko
Date: Tue May 16 2017 - 05:00:47 EST

drm_[cm]alloc* has grown their own kmalloc with vmalloc fallback
implementations. MM has grown kvmalloc* helpers in the meantime. Let's
use those because it a) reduces the code and b) MM has a better idea
how to implement fallbacks (e.g. do not vmalloc before kmalloc is tried
with __GFP_NORETRY).

drm_calloc_large needs to get __GFP_ZERO explicitly.

drm_free_large can be replaced by kvfree directly.

Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c | 16 ++---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 19 +++---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 7 +-
drivers/gpu/drm/drm_gem.c | 6 +-
drivers/gpu/drm/etnaviv/etnaviv_gem.c | 12 ++--
drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 4 +-
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 12 ++--
drivers/gpu/drm/exynos/exynos_drm_gem.c | 11 +--
drivers/gpu/drm/i915/i915_debugfs.c | 4 +-
drivers/gpu/drm/i915/i915_gem.c | 4 +-
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 34 +++++-----
drivers/gpu/drm/i915/i915_gem_gtt.c | 6 +-
drivers/gpu/drm/i915/i915_gem_userptr.c | 8 +--
drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c | 12 ++--
drivers/gpu/drm/msm/msm_gem.c | 10 +--
drivers/gpu/drm/radeon/radeon_cs.c | 11 +--
drivers/gpu/drm/radeon/radeon_gem.c | 2 +-
drivers/gpu/drm/radeon/radeon_ring.c | 4 +-
drivers/gpu/drm/radeon/radeon_vm.c | 4 +-
drivers/gpu/drm/ttm/ttm_tt.c | 13 ++--
drivers/gpu/drm/udl/udl_dmabuf.c | 2 +-
drivers/gpu/drm/udl/udl_gem.c | 2 +-
drivers/gpu/drm/vc4/vc4_gem.c | 15 +++--
drivers/gpu/drm/virtio/virtgpu_ioctl.c | 27 ++++----
include/drm/drmP.h | 1 -
include/drm/drm_mem_util.h | 78 ----------------------
26 files changed, 126 insertions(+), 198 deletions(-)
delete mode 100644 include/drm/drm_mem_util.h

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
index a6649874e6ce..9f0247cdda5e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
@@ -96,7 +96,7 @@ static int amdgpu_bo_list_set(struct amdgpu_device *adev,
int r;
unsigned long total_size = 0;

- array = drm_malloc_ab(num_entries, sizeof(struct amdgpu_bo_list_entry));
+ array = kvmalloc_array(num_entries, sizeof(struct amdgpu_bo_list_entry), GFP_KERNEL);
if (!array)
return -ENOMEM;
memset(array, 0, num_entries * sizeof(struct amdgpu_bo_list_entry));
@@ -148,7 +148,7 @@ static int amdgpu_bo_list_set(struct amdgpu_device *adev,
for (i = 0; i < list->num_entries; ++i)
amdgpu_bo_unref(&list->array[i].robj);

- drm_free_large(list->array);
+ kvfree(list->array);

list->gds_obj = gds_obj;
list->gws_obj = gws_obj;
@@ -163,7 +163,7 @@ static int amdgpu_bo_list_set(struct amdgpu_device *adev,
error_free:
while (i--)
amdgpu_bo_unref(&array[i].robj);
- drm_free_large(array);
+ kvfree(array);
return r;
}

@@ -224,7 +224,7 @@ void amdgpu_bo_list_free(struct amdgpu_bo_list *list)
amdgpu_bo_unref(&list->array[i].robj);

mutex_destroy(&list->lock);
- drm_free_large(list->array);
+ kvfree(list->array);
kfree(list);
}

@@ -244,8 +244,8 @@ int amdgpu_bo_list_ioctl(struct drm_device *dev, void *data,

int r;

- info = drm_malloc_ab(args->in.bo_number,
- sizeof(struct drm_amdgpu_bo_list_entry));
+ info = kvmalloc_array(args->in.bo_number,
+ sizeof(struct drm_amdgpu_bo_list_entry), GFP_KERNEL);
if (!info)
return -ENOMEM;

@@ -311,11 +311,11 @@ int amdgpu_bo_list_ioctl(struct drm_device *dev, void *data,

memset(args, 0, sizeof(*args));
args->out.list_handle = handle;
- drm_free_large(info);
+ kvfree(info);

return 0;

error_free:
- drm_free_large(info);
+ kvfree(info);
return r;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 4e6b9501ab0a..5b3e0f63a115 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -194,7 +194,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
size = p->chunks[i].length_dw;
cdata = (void __user *)(uintptr_t)user_chunk.chunk_data;

- p->chunks[i].kdata = drm_malloc_ab(size, sizeof(uint32_t));
+ p->chunks[i].kdata = kvmalloc_array(size, sizeof(uint32_t), GFP_KERNEL);
if (p->chunks[i].kdata == NULL) {
ret = -ENOMEM;
i--;
@@ -247,7 +247,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
i = p->nchunks - 1;
free_partial_kdata:
for (; i >= 0; i--)
- drm_free_large(p->chunks[i].kdata);
+ kvfree(p->chunks[i].kdata);
kfree(p->chunks);
p->chunks = NULL;
p->nchunks = 0;
@@ -505,7 +505,7 @@ static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
return r;

if (binding_userptr) {
- drm_free_large(lobj->user_pages);
+ kvfree(lobj->user_pages);
lobj->user_pages = NULL;
}
}
@@ -571,7 +571,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
release_pages(e->user_pages,
e->robj->tbo.ttm->num_pages,
false);
- drm_free_large(e->user_pages);
+ kvfree(e->user_pages);
e->user_pages = NULL;
}

@@ -601,8 +601,9 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
list_for_each_entry(e, &need_pages, tv.head) {
struct ttm_tt *ttm = e->robj->tbo.ttm;

- e->user_pages = drm_calloc_large(ttm->num_pages,
- sizeof(struct page*));
+ e->user_pages = kvmalloc_array(ttm->num_pages,
+ sizeof(struct page*),
+ GFP_KERNEL | __GFP_ZERO);
if (!e->user_pages) {
r = -ENOMEM;
DRM_ERROR("calloc failure in %s\n", __func__);
@@ -612,7 +613,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
r = amdgpu_ttm_tt_get_user_pages(ttm, e->user_pages);
if (r) {
DRM_ERROR("amdgpu_ttm_tt_get_user_pages failed.\n");
- drm_free_large(e->user_pages);
+ kvfree(e->user_pages);
e->user_pages = NULL;
goto error_free_pages;
}
@@ -708,7 +709,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
release_pages(e->user_pages,
e->robj->tbo.ttm->num_pages,
false);
- drm_free_large(e->user_pages);
+ kvfree(e->user_pages);
}
}

@@ -761,7 +762,7 @@ static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error, bo
amdgpu_bo_list_put(parser->bo_list);

for (i = 0; i < parser->nchunks; i++)
- drm_free_large(parser->chunks[i].kdata);
+ kvfree(parser->chunks[i].kdata);
kfree(parser->chunks);
if (parser->job)
amdgpu_job_free(parser->job);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 07ff3b1514f1..749a6cde7985 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -279,8 +279,9 @@ static int amdgpu_vm_alloc_levels(struct amdgpu_device *adev,
if (!parent->entries) {
unsigned num_entries = amdgpu_vm_num_entries(adev, level);

- parent->entries = drm_calloc_large(num_entries,
- sizeof(struct amdgpu_vm_pt));
+ parent->entries = kvmalloc_array(num_entries,
+ sizeof(struct amdgpu_vm_pt),
+ GFP_KERNEL | __GFP_ZERO);
if (!parent->entries)
return -ENOMEM;
memset(parent->entries, 0 , sizeof(struct amdgpu_vm_pt));
@@ -2198,7 +2199,7 @@ static void amdgpu_vm_free_levels(struct amdgpu_vm_pt *level)
for (i = 0; i <= level->last_entry_used; i++)
amdgpu_vm_free_levels(&level->entries[i]);

- drm_free_large(level->entries);
+ kvfree(level->entries);
}

/**
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index b1e28c944637..8dc11064253d 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -521,7 +521,7 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj)

npages = obj->size >> PAGE_SHIFT;

- pages = drm_malloc_ab(npages, sizeof(struct page *));
+ pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (pages == NULL)
return ERR_PTR(-ENOMEM);

@@ -546,7 +546,7 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj)
while (i--)
put_page(pages[i]);

- drm_free_large(pages);
+ kvfree(pages);
return ERR_CAST(p);
}
EXPORT_SYMBOL(drm_gem_get_pages);
@@ -582,7 +582,7 @@ void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
put_page(pages[i]);
}

- drm_free_large(pages);
+ kvfree(pages);
}
EXPORT_SYMBOL(drm_gem_put_pages);

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index fd56f92f3469..d45dd9f3b00c 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -748,7 +748,7 @@ static struct page **etnaviv_gem_userptr_do_get_pages(
uintptr_t ptr;
unsigned int flags = 0;

- pvec = drm_malloc_ab(npages, sizeof(struct page *));
+ pvec = kvmallo_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!pvec)
return ERR_PTR(-ENOMEM);

@@ -772,7 +772,7 @@ static struct page **etnaviv_gem_userptr_do_get_pages(

if (ret < 0) {
release_pages(pvec, pinned, 0);
- drm_free_large(pvec);
+ kvfree(pvec);
return ERR_PTR(ret);
}

@@ -823,7 +823,7 @@ static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
mm = get_task_mm(etnaviv_obj->userptr.task);
pinned = 0;
if (mm == current->mm) {
- pvec = drm_malloc_ab(npages, sizeof(struct page *));
+ pvec = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!pvec) {
mmput(mm);
return -ENOMEM;
@@ -832,7 +832,7 @@ static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
pinned = __get_user_pages_fast(etnaviv_obj->userptr.ptr, npages,
!etnaviv_obj->userptr.ro, pvec);
if (pinned < 0) {
- drm_free_large(pvec);
+ kvfree(pvec);
mmput(mm);
return pinned;
}
@@ -845,7 +845,7 @@ static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
}

release_pages(pvec, pinned, 0);
- drm_free_large(pvec);
+ kvfree(pvec);

work = kmalloc(sizeof(*work), GFP_KERNEL);
if (!work) {
@@ -879,7 +879,7 @@ static void etnaviv_gem_userptr_release(struct etnaviv_gem_object *etnaviv_obj)
int npages = etnaviv_obj->base.size >> PAGE_SHIFT;

release_pages(etnaviv_obj->pages, npages, 0);
- drm_free_large(etnaviv_obj->pages);
+ kvfree(etnaviv_obj->pages);
}
put_task_struct(etnaviv_obj->userptr.task);
}
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
index abed6f781281..e5da4f2300ba 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
@@ -87,7 +87,7 @@ static void etnaviv_gem_prime_release(struct etnaviv_gem_object *etnaviv_obj)
* ours, just free the array we allocated:
*/
if (etnaviv_obj->pages)
- drm_free_large(etnaviv_obj->pages);
+ kvfree(etnaviv_obj->pages);

drm_prime_gem_destroy(&etnaviv_obj->base, etnaviv_obj->sgt);
}
@@ -128,7 +128,7 @@ struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
npages = size / PAGE_SIZE;

etnaviv_obj->sgt = sgt;
- etnaviv_obj->pages = drm_malloc_ab(npages, sizeof(struct page *));
+ etnaviv_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!etnaviv_obj->pages) {
ret = -ENOMEM;
goto fail;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index de80ee1b71df..ee7069e93eda 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -345,9 +345,9 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
* Copy the command submission and bo array to kernel space in
* one go, and do this outside of any locks.
*/
- bos = drm_malloc_ab(args->nr_bos, sizeof(*bos));
- relocs = drm_malloc_ab(args->nr_relocs, sizeof(*relocs));
- stream = drm_malloc_ab(1, args->stream_size);
+ bos = kvmalloc_array(args->nr_bos, sizeof(*bos), GFP_KERNEL);
+ relocs = kvmalloc_array(args->nr_relocs, sizeof(*relocs), GFP_KERNEL);
+ stream = kvmalloc_array(1, args->stream_size, GFP_KERNEL);
cmdbuf = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc,
ALIGN(args->stream_size, 8) + 8,
args->nr_bos);
@@ -489,11 +489,11 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
if (cmdbuf)
etnaviv_cmdbuf_free(cmdbuf);
if (stream)
- drm_free_large(stream);
+ kvfree(stream);
if (bos)
- drm_free_large(bos);
+ kvfree(bos);
if (relocs)
- drm_free_large(relocs);
+ kvfree(relocs);

return ret;
}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 55a1579d11b3..c23479be4850 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -59,7 +59,8 @@ static int exynos_drm_alloc_buf(struct exynos_drm_gem *exynos_gem)

nr_pages = exynos_gem->size >> PAGE_SHIFT;

- exynos_gem->pages = drm_calloc_large(nr_pages, sizeof(struct page *));
+ exynos_gem->pages = kvmalloc_array(nr_pages, sizeof(struct page *),
+ GFP_KERNEL | __GFP_ZERO);
if (!exynos_gem->pages) {
DRM_ERROR("failed to allocate pages.\n");
return -ENOMEM;
@@ -101,7 +102,7 @@ static int exynos_drm_alloc_buf(struct exynos_drm_gem *exynos_gem)
dma_free_attrs(to_dma_dev(dev), exynos_gem->size, exynos_gem->cookie,
exynos_gem->dma_addr, exynos_gem->dma_attrs);
err_free:
- drm_free_large(exynos_gem->pages);
+ kvfree(exynos_gem->pages);

return ret;
}
@@ -122,7 +123,7 @@ static void exynos_drm_free_buf(struct exynos_drm_gem *exynos_gem)
(dma_addr_t)exynos_gem->dma_addr,
exynos_gem->dma_attrs);

- drm_free_large(exynos_gem->pages);
+ kvfree(exynos_gem->pages);
}

static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
@@ -559,7 +560,7 @@ exynos_drm_gem_prime_import_sg_table(struct drm_device *dev,
exynos_gem->dma_addr = sg_dma_address(sgt->sgl);

npages = exynos_gem->size >> PAGE_SHIFT;
- exynos_gem->pages = drm_malloc_ab(npages, sizeof(struct page *));
+ exynos_gem->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!exynos_gem->pages) {
ret = -ENOMEM;
goto err;
@@ -588,7 +589,7 @@ exynos_drm_gem_prime_import_sg_table(struct drm_device *dev,
return &exynos_gem->base;

err_free_large:
- drm_free_large(exynos_gem->pages);
+ kvfree(exynos_gem->pages);
err:
drm_gem_object_release(&exynos_gem->base);
kfree(exynos_gem);
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index bd9abef40c66..c8f3c0cc79fb 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -229,7 +229,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
int ret;

total = READ_ONCE(dev_priv->mm.object_count);
- objects = drm_malloc_ab(total, sizeof(*objects));
+ objects = kvmalloc_array(total, sizeof(*objects), GFP_KERNEL);
if (!objects)
return -ENOMEM;

@@ -274,7 +274,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data)

mutex_unlock(&dev->struct_mutex);
out:
- drm_free_large(objects);
+ kvfree(objects);
return ret;
}

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0c1cbe98c994..aa790a6d38e2 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2556,7 +2556,7 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj,

if (n_pages > ARRAY_SIZE(stack_pages)) {
/* Too big for stack -- allocate temporary array instead */
- pages = drm_malloc_gfp(n_pages, sizeof(*pages), GFP_TEMPORARY);
+ pages = kvmalloc_array(n_pages, sizeof(*pages), GFP_TEMPORARY);
if (!pages)
return NULL;
}
@@ -2578,7 +2578,7 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj,
addr = vmap(pages, n_pages, 0, pgprot);

if (pages != stack_pages)
- drm_free_large(pages);
+ kvfree(pages);

return addr;
}
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index af1965774e7b..04211c970b9f 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1019,11 +1019,11 @@ i915_gem_execbuffer_relocate_slow(struct drm_device *dev,
for (i = 0; i < count; i++)
total += exec[i].relocation_count;

- reloc_offset = drm_malloc_ab(count, sizeof(*reloc_offset));
- reloc = drm_malloc_ab(total, sizeof(*reloc));
+ reloc_offset = kvmalloc_array(count, sizeof(*reloc_offset), GFP_KERNEL);
+ reloc = kvmalloc_array(total, sizeof(*reloc), GFP_KERNEL);
if (reloc == NULL || reloc_offset == NULL) {
- drm_free_large(reloc);
- drm_free_large(reloc_offset);
+ kvfree(reloc);
+ kvfree(reloc_offset);
mutex_lock(&dev->struct_mutex);
return -ENOMEM;
}
@@ -1099,8 +1099,8 @@ i915_gem_execbuffer_relocate_slow(struct drm_device *dev,
*/

err:
- drm_free_large(reloc);
- drm_free_large(reloc_offset);
+ kvfree(reloc);
+ kvfree(reloc_offset);
return ret;
}

@@ -1871,13 +1871,13 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
}

/* Copy in the exec list from userland */
- exec_list = drm_malloc_ab(sizeof(*exec_list), args->buffer_count);
- exec2_list = drm_malloc_ab(sizeof(*exec2_list), args->buffer_count);
+ exec_list = kvmalloc_array(sizeof(*exec_list), args->buffer_count, GFP_KERNEL);
+ exec2_list = kvmalloc_array(sizeof(*exec2_list), args->buffer_count, GFP_KERNEL);
if (exec_list == NULL || exec2_list == NULL) {
DRM_DEBUG("Failed to allocate exec list for %d buffers\n",
args->buffer_count);
- drm_free_large(exec_list);
- drm_free_large(exec2_list);
+ kvfree(exec_list);
+ kvfree(exec2_list);
return -ENOMEM;
}
ret = copy_from_user(exec_list,
@@ -1886,8 +1886,8 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
if (ret != 0) {
DRM_DEBUG("copy %d exec entries failed %d\n",
args->buffer_count, ret);
- drm_free_large(exec_list);
- drm_free_large(exec2_list);
+ kvfree(exec_list);
+ kvfree(exec2_list);
return -EFAULT;
}

@@ -1936,8 +1936,8 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
}
}

- drm_free_large(exec_list);
- drm_free_large(exec2_list);
+ kvfree(exec_list);
+ kvfree(exec2_list);
return ret;
}

@@ -1955,7 +1955,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data,
return -EINVAL;
}

- exec2_list = drm_malloc_gfp(args->buffer_count,
+ exec2_list = kvmalloc_array(args->buffer_count,
sizeof(*exec2_list),
GFP_TEMPORARY);
if (exec2_list == NULL) {
@@ -1969,7 +1969,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data,
if (ret != 0) {
DRM_DEBUG("copy %d exec entries failed %d\n",
args->buffer_count, ret);
- drm_free_large(exec2_list);
+ kvfree(exec2_list);
return -EFAULT;
}

@@ -1996,6 +1996,6 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data,
}
}

- drm_free_large(exec2_list);
+ kvfree(exec2_list);
return ret;
}
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index bc3c63e92c16..899427863547 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3114,7 +3114,7 @@ intel_rotate_pages(struct intel_rotation_info *rot_info,
int ret = -ENOMEM;

/* Allocate a temporary list of source pages for random access. */
- page_addr_list = drm_malloc_gfp(n_pages,
+ page_addr_list = kvmalloc_array(n_pages,
sizeof(dma_addr_t),
GFP_TEMPORARY);
if (!page_addr_list)
@@ -3147,14 +3147,14 @@ intel_rotate_pages(struct intel_rotation_info *rot_info,
DRM_DEBUG_KMS("Created rotated page mapping for object size %zu (%ux%u tiles, %u pages)\n",
obj->base.size, rot_info->plane[0].width, rot_info->plane[0].height, size);

- drm_free_large(page_addr_list);
+ kvfree(page_addr_list);

return st;

err_sg_alloc:
kfree(st);
err_st_alloc:
- drm_free_large(page_addr_list);
+ kvfree(page_addr_list);

DRM_DEBUG_KMS("Failed to create rotated mapping for object size %zu! (%ux%u tiles, %u pages)\n",
obj->base.size, rot_info->plane[0].width, rot_info->plane[0].height, size);
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 58ccf8b8ca1c..1a0ce1dc68f5 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -507,7 +507,7 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work)
ret = -ENOMEM;
pinned = 0;

- pvec = drm_malloc_gfp(npages, sizeof(struct page *), GFP_TEMPORARY);
+ pvec = kvmalloc_array(npages, sizeof(struct page *), GFP_TEMPORARY);
if (pvec != NULL) {
struct mm_struct *mm = obj->userptr.mm->mm;
unsigned int flags = 0;
@@ -555,7 +555,7 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work)
mutex_unlock(&obj->mm.lock);

release_pages(pvec, pinned, 0);
- drm_free_large(pvec);
+ kvfree(pvec);

i915_gem_object_put(obj);
put_task_struct(work->task);
@@ -642,7 +642,7 @@ i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
pinned = 0;

if (mm == current->mm) {
- pvec = drm_malloc_gfp(num_pages, sizeof(struct page *),
+ pvec = kvmalloc_array(num_pages, sizeof(struct page *),
GFP_TEMPORARY |
__GFP_NORETRY |
__GFP_NOWARN);
@@ -669,7 +669,7 @@ i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)

if (IS_ERR(pages))
release_pages(pvec, pinned, 0);
- drm_free_large(pvec);
+ kvfree(pvec);

return pages;
}
diff --git a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
index 19860a372d90..7276194c04f7 100644
--- a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
@@ -117,7 +117,7 @@ static int igt_random_insert_remove(void *arg)

mock_engine_reset(engine);

- waiters = drm_malloc_gfp(count, sizeof(*waiters), GFP_TEMPORARY);
+ waiters = kvmalloc_array(count, sizeof(*waiters), GFP_TEMPORARY);
if (!waiters)
goto out_engines;

@@ -169,7 +169,7 @@ static int igt_random_insert_remove(void *arg)
out_bitmap:
kfree(bitmap);
out_waiters:
- drm_free_large(waiters);
+ kvfree(waiters);
out_engines:
mock_engine_flush(engine);
return err;
@@ -187,7 +187,7 @@ static int igt_insert_complete(void *arg)

mock_engine_reset(engine);

- waiters = drm_malloc_gfp(count, sizeof(*waiters), GFP_TEMPORARY);
+ waiters = kvmalloc_array(count, sizeof(*waiters), GFP_TEMPORARY);
if (!waiters)
goto out_engines;

@@ -254,7 +254,7 @@ static int igt_insert_complete(void *arg)
out_bitmap:
kfree(bitmap);
out_waiters:
- drm_free_large(waiters);
+ kvfree(waiters);
out_engines:
mock_engine_flush(engine);
return err;
@@ -368,7 +368,7 @@ static int igt_wakeup(void *arg)

mock_engine_reset(engine);

- waiters = drm_malloc_gfp(count, sizeof(*waiters), GFP_TEMPORARY);
+ waiters = kvmalloc_array(count, sizeof(*waiters), GFP_TEMPORARY);
if (!waiters)
goto out_engines;

@@ -454,7 +454,7 @@ static int igt_wakeup(void *arg)
put_task_struct(waiters[n].tsk);
}

- drm_free_large(waiters);
+ kvfree(waiters);
out_engines:
mock_engine_flush(engine);
return err;
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 68e509b3b9e4..465dab942afa 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -50,13 +50,13 @@ static struct page **get_pages_vram(struct drm_gem_object *obj,
struct page **p;
int ret, i;

- p = drm_malloc_ab(npages, sizeof(struct page *));
+ p = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!p)
return ERR_PTR(-ENOMEM);

ret = drm_mm_insert_node(&priv->vram.mm, msm_obj->vram_node, npages);
if (ret) {
- drm_free_large(p);
+ kvfree(p);
return ERR_PTR(ret);
}

@@ -127,7 +127,7 @@ static void put_pages(struct drm_gem_object *obj)
drm_gem_put_pages(obj, msm_obj->pages, true, false);
else {
drm_mm_remove_node(msm_obj->vram_node);
- drm_free_large(msm_obj->pages);
+ kvfree(msm_obj->pages);
}

msm_obj->pages = NULL;
@@ -707,7 +707,7 @@ void msm_gem_free_object(struct drm_gem_object *obj)
* ours, just free the array we allocated:
*/
if (msm_obj->pages)
- drm_free_large(msm_obj->pages);
+ kvfree(msm_obj->pages);

drm_prime_gem_destroy(obj, msm_obj->sgt);
} else {
@@ -863,7 +863,7 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev,

msm_obj = to_msm_bo(obj);
msm_obj->sgt = sgt;
- msm_obj->pages = drm_malloc_ab(npages, sizeof(struct page *));
+ msm_obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (!msm_obj->pages) {
ret = -ENOMEM;
goto fail;
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 3ac671f6c8e1..00b22af70f5c 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -87,7 +87,8 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
p->dma_reloc_idx = 0;
/* FIXME: we assume that each relocs use 4 dwords */
p->nrelocs = chunk->length_dw / 4;
- p->relocs = drm_calloc_large(p->nrelocs, sizeof(struct radeon_bo_list));
+ p->relocs = kvmalloc_array(p->nrelocs, sizeof(struct radeon_bo_list),
+ GFP_KERNEL | __GFP_ZERO);
if (p->relocs == NULL) {
return -ENOMEM;
}
@@ -341,7 +342,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
continue;
}

- p->chunks[i].kdata = drm_malloc_ab(size, sizeof(uint32_t));
+ p->chunks[i].kdata = kvmalloc_array(size, sizeof(uint32_t), GFP_KERNEL);
size *= sizeof(uint32_t);
if (p->chunks[i].kdata == NULL) {
return -ENOMEM;
@@ -440,10 +441,10 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error, bo
}
}
kfree(parser->track);
- drm_free_large(parser->relocs);
- drm_free_large(parser->vm_bos);
+ kvfree(parser->relocs);
+ kvfree(parser->vm_bos);
for (i = 0; i < parser->nchunks; i++)
- drm_free_large(parser->chunks[i].kdata);
+ kvfree(parser->chunks[i].kdata);
kfree(parser->chunks);
kfree(parser->chunks_array);
radeon_ib_free(parser->rdev, &parser->ib);
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index dddb372de2b9..574bf7e6b118 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -587,7 +587,7 @@ static void radeon_gem_va_update_vm(struct radeon_device *rdev,
ttm_eu_backoff_reservation(&ticket, &list);

error_free:
- drm_free_large(vm_bos);
+ kvfree(vm_bos);

if (r && r != -ERESTARTSYS)
DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 8c7872339c2a..84802b201bef 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -314,7 +314,7 @@ unsigned radeon_ring_backup(struct radeon_device *rdev, struct radeon_ring *ring
}

/* and then save the content of the ring */
- *data = drm_malloc_ab(size, sizeof(uint32_t));
+ *data = kvmalloc_array(size, sizeof(uint32_t), GFP_KERNEL);
if (!*data) {
mutex_unlock(&rdev->ring_lock);
return 0;
@@ -356,7 +356,7 @@ int radeon_ring_restore(struct radeon_device *rdev, struct radeon_ring *ring,
}

radeon_ring_unlock_commit(rdev, ring, false);
- drm_free_large(data);
+ kvfree(data);
return 0;
}

diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index a1358748cea5..5f68245579a3 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -132,8 +132,8 @@ struct radeon_bo_list *radeon_vm_get_bos(struct radeon_device *rdev,
struct radeon_bo_list *list;
unsigned i, idx;

- list = drm_malloc_ab(vm->max_pde_used + 2,
- sizeof(struct radeon_bo_list));
+ list = kvmalloc_array(vm->max_pde_used + 2,
+ sizeof(struct radeon_bo_list), GFP_KERNEL);
if (!list)
return NULL;

diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 5260179d788a..8ebc8d3560c3 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -39,7 +39,6 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <drm/drm_cache.h>
-#include <drm/drm_mem_util.h>
#include <drm/ttm/ttm_module.h>
#include <drm/ttm/ttm_bo_driver.h>
#include <drm/ttm/ttm_placement.h>
@@ -53,14 +52,16 @@
*/
static void ttm_tt_alloc_page_directory(struct ttm_tt *ttm)
{
- ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(void*));
+ ttm->pages = kvmalloc_array(ttm->num_pages, sizeof(void*),
+ GFP_KERNEL | __GFP_ZERO);
}

static void ttm_dma_tt_alloc_page_directory(struct ttm_dma_tt *ttm)
{
- ttm->ttm.pages = drm_calloc_large(ttm->ttm.num_pages,
+ ttm->ttm.pages = kvmalloc_array(ttm->ttm.num_pages,
sizeof(*ttm->ttm.pages) +
- sizeof(*ttm->dma_address));
+ sizeof(*ttm->dma_address),
+ GFP_KERNEL | __GFP_ZERO);
ttm->dma_address = (void *) (ttm->ttm.pages + ttm->ttm.num_pages);
}

@@ -208,7 +209,7 @@ EXPORT_SYMBOL(ttm_tt_init);

void ttm_tt_fini(struct ttm_tt *ttm)
{
- drm_free_large(ttm->pages);
+ kvfree(ttm->pages);
ttm->pages = NULL;
}
EXPORT_SYMBOL(ttm_tt_fini);
@@ -243,7 +244,7 @@ void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma)
{
struct ttm_tt *ttm = &ttm_dma->ttm;

- drm_free_large(ttm->pages);
+ kvfree(ttm->pages);
ttm->pages = NULL;
ttm_dma->dma_address = NULL;
}
diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c
index ed0e636243b2..2e031a894813 100644
--- a/drivers/gpu/drm/udl/udl_dmabuf.c
+++ b/drivers/gpu/drm/udl/udl_dmabuf.c
@@ -228,7 +228,7 @@ static int udl_prime_create(struct drm_device *dev,
return -ENOMEM;

obj->sg = sg;
- obj->pages = drm_malloc_ab(npages, sizeof(struct page *));
+ obj->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
if (obj->pages == NULL) {
DRM_ERROR("obj pages is NULL %d\n", npages);
return -ENOMEM;
diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
index 775c50e4f02c..db9ceceba30e 100644
--- a/drivers/gpu/drm/udl/udl_gem.c
+++ b/drivers/gpu/drm/udl/udl_gem.c
@@ -146,7 +146,7 @@ int udl_gem_get_pages(struct udl_gem_object *obj)
void udl_gem_put_pages(struct udl_gem_object *obj)
{
if (obj->base.import_attach) {
- drm_free_large(obj->pages);
+ kvfree(obj->pages);
obj->pages = NULL;
return;
}
diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c
index e9c381c42139..bf466674ca9b 100644
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -545,14 +545,15 @@ vc4_cl_lookup_bos(struct drm_device *dev,
return -EINVAL;
}

- exec->bo = drm_calloc_large(exec->bo_count,
- sizeof(struct drm_gem_cma_object *));
+ exec->bo = kvmalloc_array(exec->bo_count,
+ sizeof(struct drm_gem_cma_object *),
+ GFP_KERNEL | __GFP_ZERO);
if (!exec->bo) {
DRM_ERROR("Failed to allocate validated BO pointers\n");
return -ENOMEM;
}

- handles = drm_malloc_ab(exec->bo_count, sizeof(uint32_t));
+ handles = kvmalloc_array(exec->bo_count, sizeof(uint32_t), GFP_KERNEL);
if (!handles) {
ret = -ENOMEM;
DRM_ERROR("Failed to allocate incoming GEM handles\n");
@@ -584,7 +585,7 @@ vc4_cl_lookup_bos(struct drm_device *dev,
spin_unlock(&file_priv->table_lock);

fail:
- drm_free_large(handles);
+ kvfree(handles);
return ret;
}

@@ -622,7 +623,7 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
* read the contents back for validation, and I think the
* bo->vaddr is uncached access.
*/
- temp = drm_malloc_ab(temp_size, 1);
+ temp = kvmalloc_array(temp_size, 1, GFP_KERNEL);
if (!temp) {
DRM_ERROR("Failed to allocate storage for copying "
"in bin/render CLs.\n");
@@ -697,7 +698,7 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
ret = vc4_wait_for_seqno(dev, exec->bin_dep_seqno, ~0ull, true);

fail:
- drm_free_large(temp);
+ kvfree(temp);
return ret;
}

@@ -710,7 +711,7 @@ vc4_complete_exec(struct drm_device *dev, struct vc4_exec_info *exec)
if (exec->bo) {
for (i = 0; i < exec->bo_count; i++)
drm_gem_object_unreference_unlocked(&exec->bo[i]->base);
- drm_free_large(exec->bo);
+ kvfree(exec->bo);
}

while (!list_empty(&exec->unref_list)) {
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 61f3a963af95..6ed4bfc9b82b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -119,13 +119,14 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
INIT_LIST_HEAD(&validate_list);
if (exbuf->num_bo_handles) {

- bo_handles = drm_malloc_ab(exbuf->num_bo_handles,
- sizeof(uint32_t));
- buflist = drm_calloc_large(exbuf->num_bo_handles,
- sizeof(struct ttm_validate_buffer));
+ bo_handles = kvmalloc_array(exbuf->num_bo_handles,
+ sizeof(uint32_t), GFP_KERNEL);
+ buflist = kvmalloc_array(exbuf->num_bo_handles,
+ sizeof(struct ttm_validate_buffer),
+ GFP_KERNEL | __GFP_ZERO);
if (!bo_handles || !buflist) {
- drm_free_large(bo_handles);
- drm_free_large(buflist);
+ kvfree(bo_handles);
+ kvfree(buflist);
return -ENOMEM;
}

@@ -133,16 +134,16 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
if (copy_from_user(bo_handles, user_bo_handles,
exbuf->num_bo_handles * sizeof(uint32_t))) {
ret = -EFAULT;
- drm_free_large(bo_handles);
- drm_free_large(buflist);
+ kvfree(bo_handles);
+ kvfree(buflist);
return ret;
}

for (i = 0; i < exbuf->num_bo_handles; i++) {
gobj = drm_gem_object_lookup(drm_file, bo_handles[i]);
if (!gobj) {
- drm_free_large(bo_handles);
- drm_free_large(buflist);
+ kvfree(bo_handles);
+ kvfree(buflist);
return -ENOENT;
}

@@ -151,7 +152,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,

list_add(&buflist[i].head, &validate_list);
}
- drm_free_large(bo_handles);
+ kvfree(bo_handles);
}

ret = virtio_gpu_object_list_validate(&ticket, &validate_list);
@@ -171,7 +172,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,

/* fence the command bo */
virtio_gpu_unref_list(&validate_list);
- drm_free_large(buflist);
+ kvfree(buflist);
dma_fence_put(&fence->f);
return 0;

@@ -179,7 +180,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
ttm_eu_backoff_reservation(&ticket, &validate_list);
out_free:
virtio_gpu_unref_list(&validate_list);
- drm_free_large(buflist);
+ kvfree(buflist);
return ret;
}

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index e1daa4f343cd..59df08d14b89 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -70,7 +70,6 @@
#include <drm/drm_fourcc.h>
#include <drm/drm_global.h>
#include <drm/drm_hashtab.h>
-#include <drm/drm_mem_util.h>
#include <drm/drm_mm.h>
#include <drm/drm_os_linux.h>
#include <drm/drm_sarea.h>
diff --git a/include/drm/drm_mem_util.h b/include/drm/drm_mem_util.h
deleted file mode 100644
index d0f6cf2e5324..000000000000
--- a/include/drm/drm_mem_util.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright © 2008 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- * Authors:
- * Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
- *
- */
-#ifndef _DRM_MEM_UTIL_H_
-#define _DRM_MEM_UTIL_H_
-
-#include <linux/vmalloc.h>
-
-static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
-{
- if (size != 0 && nmemb > SIZE_MAX / size)
- return NULL;
-
- if (size * nmemb <= PAGE_SIZE)
- return kcalloc(nmemb, size, GFP_KERNEL);
-
- return vzalloc(size * nmemb);
-}
-
-/* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */
-static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size)
-{
- if (size != 0 && nmemb > SIZE_MAX / size)
- return NULL;
-
- if (size * nmemb <= PAGE_SIZE)
- return kmalloc(nmemb * size, GFP_KERNEL);
-
- return vmalloc(size * nmemb);
-}
-
-static __inline__ void *drm_malloc_gfp(size_t nmemb, size_t size, gfp_t gfp)
-{
- if (size != 0 && nmemb > SIZE_MAX / size)
- return NULL;
-
- if (size * nmemb <= PAGE_SIZE)
- return kmalloc(nmemb * size, gfp);
-
- if (gfp & __GFP_RECLAIMABLE) {
- void *ptr = kmalloc(nmemb * size,
- gfp | __GFP_NOWARN | __GFP_NORETRY);
- if (ptr)
- return ptr;
- }
-
- return __vmalloc(size * nmemb, gfp, PAGE_KERNEL);
-}
-
-static __inline void drm_free_large(void *ptr)
-{
- kvfree(ptr);
-}
-
-#endif
--
2.11.0

--
Michal Hocko
SUSE Labs