diff options
| author |   Oak Zeng <Oak.Zeng@amd.com> | 2019-05-06 22:11:14 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-05-28 14:44:31 -0500 |
| commit | 1a058c3376765ee31d65e28cbbb9d4ff15120056 (patch) | |
| tree | cbb619dc524ae65c831aaab75d351f4f04788a0b /drivers/gpu/drm/amd/amdkfd | |
| parent | drm/amdkfd: Add function to set queue gws (diff) | |
| download | linux-dev-1a058c3376765ee31d65e28cbbb9d4ff15120056.tar.xz linux-dev-1a058c3376765ee31d65e28cbbb9d4ff15120056.zip | |
drm/amdkfd: New IOCTL to allocate queue GWS
Add a new kfd ioctl to allocate queue GWS. Queue
GWS is released on queue destroy.
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index c92e931ceb27..aab2aa6c1dee 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1567,6 +1567,31 @@ copy_from_user_failed: return err; } +static int kfd_ioctl_alloc_queue_gws(struct file *filep, + struct kfd_process *p, void *data) +{ + int retval; + struct kfd_ioctl_alloc_queue_gws_args *args = data; + struct kfd_dev *dev = NULL; + + if (!hws_gws_support || + dev->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) + return -EINVAL; + + dev = kfd_device_by_id(args->gpu_id); + if (!dev) { + pr_debug("Could not find gpu id 0x%x\n", args->gpu_id); + return -EINVAL; + } + + mutex_lock(&p->mutex); + retval = pqm_set_gws(&p->pqm, args->queue_id, args->num_gws ? dev->gws : NULL); + mutex_unlock(&p->mutex); + + args->first_gws = 0; + return retval; +} + static int kfd_ioctl_get_dmabuf_info(struct file *filep, struct kfd_process *p, void *data) { @@ -1769,6 +1794,8 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = { AMDKFD_IOCTL_DEF(AMDKFD_IOC_IMPORT_DMABUF, kfd_ioctl_import_dmabuf, 0), + AMDKFD_IOCTL_DEF(AMDKFD_IOC_ALLOC_QUEUE_GWS, + kfd_ioctl_alloc_queue_gws, 0), }; #define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls) |