aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
diff options
context:
space:
mode:
authorsaturneric <[email protected]>2025-11-16 14:34:50 +0000
committersaturneric <[email protected]>2025-11-16 14:34:50 +0000
commit690862a8d74fee1e07f33dad44b761753f101779 (patch)
treef81bdcab8cd5a640518dba5056de6c62bd071eaf /drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
parentMerge tag 'v6.17.7' into linux-6.17.y (diff)
parentLinux 6.17.8 (diff)
downloadkernel-linux-6.17.y.tar.gz
kernel-linux-6.17.y.zip
Merge tag 'v6.17.8' into linux-6.17.ylinux-6.17.y
This is the 6.17.8 stable release
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_chardev.c')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_chardev.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 828a9ceef1e7..8535a52a62ca 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1070,7 +1070,12 @@ static int kfd_ioctl_alloc_memory_of_gpu(struct file *filep,
svm_range_list_lock_and_flush_work(&p->svms, current->mm);
mutex_lock(&p->svms.lock);
mmap_write_unlock(current->mm);
- if (interval_tree_iter_first(&p->svms.objects,
+
+ /* Skip a special case that allocates VRAM without VA,
+ * VA will be invalid of 0.
+ */
+ if (!(!args->va_addr && (flags & KFD_IOC_ALLOC_MEM_FLAGS_VRAM)) &&
+ interval_tree_iter_first(&p->svms.objects,
args->va_addr >> PAGE_SHIFT,
(args->va_addr + args->size - 1) >> PAGE_SHIFT)) {
pr_err("Address: 0x%llx already allocated by SVM\n",
@@ -2566,8 +2571,8 @@ static int criu_restore(struct file *filep,
pr_debug("CRIU restore (num_devices:%u num_bos:%u num_objects:%u priv_data_size:%llu)\n",
args->num_devices, args->num_bos, args->num_objects, args->priv_data_size);
- if (!args->bos || !args->devices || !args->priv_data || !args->priv_data_size ||
- !args->num_devices || !args->num_bos)
+ if ((args->num_bos > 0 && !args->bos) || !args->devices || !args->priv_data ||
+ !args->priv_data_size || !args->num_devices)
return -EINVAL;
mutex_lock(&p->mutex);
@@ -3252,8 +3257,10 @@ static long kfd_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
int retcode = -EINVAL;
bool ptrace_attached = false;
- if (nr >= AMDKFD_CORE_IOCTL_COUNT)
+ if (nr >= AMDKFD_CORE_IOCTL_COUNT) {
+ retcode = -ENOTTY;
goto err_i1;
+ }
if ((nr >= AMDKFD_COMMAND_START) && (nr < AMDKFD_COMMAND_END)) {
u32 amdkfd_size;
@@ -3266,8 +3273,10 @@ static long kfd_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
asize = amdkfd_size;
cmd = ioctl->cmd;
- } else
+ } else {
+ retcode = -ENOTTY;
goto err_i1;
+ }
dev_dbg(kfd_device, "ioctl cmd 0x%x (#0x%x), arg 0x%lx\n", cmd, nr, arg);