Hi Christophe,
I just stumbled over this patch series while cleaning up my inbox. Sorry
for dropping it back in November. I'm about to apply it but I noticed
that patch 1 is missing a Signed-off-by. Is it OK to add that in your name?
Thanks,
Felix
Am 2021-11-28 um 11:45 schrieb Christophe JAILLET:
'kfd->gtt_sa_bitmap' is a bitmap. So use 'bitmap_zalloc()' to simplify
code, improve the semantic and avoid some open-coded arithmetic in
allocator arguments.
Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.
---
drivers/gpu/drm/amd/amdkfd/kfd_device.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index e1294fba0c26..c5a0ce44a295 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -1252,8 +1252,6 @@ int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size,
unsigned int chunk_size)
{
- unsigned int num_of_longs;
-
if (WARN_ON(buf_size < chunk_size))
return -EINVAL;
if (WARN_ON(buf_size == 0))
@@ -1264,11 +1262,8 @@ static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size,
kfd->gtt_sa_chunk_size = chunk_size;
kfd->gtt_sa_num_of_chunks = buf_size / chunk_size;
- num_of_longs = (kfd->gtt_sa_num_of_chunks + BITS_PER_LONG - 1) /
- BITS_PER_LONG;
-
- kfd->gtt_sa_bitmap = kcalloc(num_of_longs, sizeof(long), GFP_KERNEL);
-
+ kfd->gtt_sa_bitmap = bitmap_zalloc(kfd->gtt_sa_num_of_chunks,
+ GFP_KERNEL);
if (!kfd->gtt_sa_bitmap)
return -ENOMEM;
@@ -1278,13 +1273,12 @@ static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size,
mutex_init(&kfd->gtt_sa_lock);
return 0;
-
}
static void kfd_gtt_sa_fini(struct kfd_dev *kfd)
{
mutex_destroy(&kfd->gtt_sa_lock);
- kfree(kfd->gtt_sa_bitmap);
+ bitmap_free(kfd->gtt_sa_bitmap);
}
static inline uint64_t kfd_gtt_sa_calc_gpu_addr(uint64_t start_addr,
