diff options
Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1319-drm-amdkfd-Allocate-gtt_sa_bitmap-in-long-units.patch')
| -rw-r--r-- | meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1319-drm-amdkfd-Allocate-gtt_sa_bitmap-in-long-units.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1319-drm-amdkfd-Allocate-gtt_sa_bitmap-in-long-units.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1319-drm-amdkfd-Allocate-gtt_sa_bitmap-in-long-units.patch new file mode 100644 index 00000000..acd2be30 --- /dev/null +++ b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1319-drm-amdkfd-Allocate-gtt_sa_bitmap-in-long-units.patch @@ -0,0 +1,45 @@ +From 5f4cbf831d328417adb7580067b33a340d74a42b Mon Sep 17 00:00:00 2001 +From: Felix Kuehling <Felix.Kuehling@amd.com> +Date: Sat, 29 Jul 2017 04:46:48 -0400 +Subject: [PATCH 1319/4131] drm/amdkfd: Allocate gtt_sa_bitmap in long units + +gtt_sa_bitmap is accessed by bitmap functions, which operate on longs. +Therefore the array should be allocated in long units. Also round up +in case the number of bits is not a multiple of BITS_PER_LONG. + +Change-Id: I023409ace88bee694a0b5d59df1b6b06ef85c5ef +Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> +--- + drivers/gpu/drm/amd/amdkfd/kfd_device.c | 11 ++++------- + 1 file changed, 4 insertions(+), 7 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c +index d28a8ee..da05b68 100644 +--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c ++++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c +@@ -1072,18 +1072,15 @@ void kfd_evict_bo_worker(struct work_struct *work) + static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size, + unsigned int chunk_size) + { +- unsigned int num_of_bits; ++ unsigned int num_of_longs; + + kfd->gtt_sa_chunk_size = chunk_size; + kfd->gtt_sa_num_of_chunks = buf_size / chunk_size; + +- num_of_bits = kfd->gtt_sa_num_of_chunks / BITS_PER_BYTE; +- if (num_of_bits == 0) { +- pr_err("Number of bits is 0 in %s", __func__); +- return -EINVAL; +- } ++ num_of_longs = (kfd->gtt_sa_num_of_chunks + BITS_PER_LONG - 1) / ++ BITS_PER_LONG; + +- kfd->gtt_sa_bitmap = kzalloc(num_of_bits, GFP_KERNEL); ++ kfd->gtt_sa_bitmap = kcalloc(num_of_longs, sizeof(long), GFP_KERNEL); + + if (!kfd->gtt_sa_bitmap) + return -ENOMEM; +-- +2.7.4 + |