diff options
| author |   Oak Zeng <Oak.Zeng@amd.com> | 2019-05-06 13:52:12 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-05-28 14:44:11 -0500 |
| commit | e09d4fc8db949715848b2d4567ad47e6b8cf0a1b (patch) | |
| tree | 1d285fd475526f69b3c053a9967932961cde01b7 /drivers/gpu/drm/amd/amdkfd | |
| parent | drm/amdgpu: Add interface to alloc gws from amdgpu (diff) | |
| download | linux-dev-e09d4fc8db949715848b2d4567ad47e6b8cf0a1b.tar.xz linux-dev-e09d4fc8db949715848b2d4567ad47e6b8cf0a1b.zip | |
drm/amdkfd: Allocate gws on device initialization
On device initialization, KFD allocates all (64) gws which
is shared by all KFD processes.
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_device.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 3 |
2 files changed, 16 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index a53dda9071b1..b08dc264d4db 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -552,6 +552,13 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, } else kfd->max_proc_per_quantum = hws_max_conc_proc; + /* Allocate global GWS that is shared by all KFD processes */ + if (hws_gws_support && amdgpu_amdkfd_alloc_gws(kfd->kgd, + amdgpu_amdkfd_get_num_gws(kfd->kgd), &kfd->gws)) { + dev_err(kfd_device, "Could not allocate %d gws\n", + amdgpu_amdkfd_get_num_gws(kfd->kgd)); + goto out; + } /* calculate max size of mqds needed for queues */ size = max_num_of_queues_per_device * kfd->device_info->mqd_size_aligned; @@ -575,7 +582,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, &kfd->gtt_start_gpu_addr, &kfd->gtt_start_cpu_ptr, false)) { dev_err(kfd_device, "Could not allocate %d bytes\n", size); - goto out; + goto alloc_gtt_mem_failure; } dev_info(kfd_device, "Allocated %d bytes on gart\n", size); @@ -645,6 +652,9 @@ kfd_doorbell_error: kfd_gtt_sa_fini(kfd); kfd_gtt_sa_init_error: amdgpu_amdkfd_free_gtt_mem(kfd->kgd, kfd->gtt_mem); +alloc_gtt_mem_failure: + if (hws_gws_support) + amdgpu_amdkfd_free_gws(kfd->kgd, kfd->gws); dev_err(kfd_device, "device %x:%x NOT added due to errors\n", kfd->pdev->vendor, kfd->pdev->device); @@ -662,6 +672,8 @@ void kgd2kfd_device_exit(struct kfd_dev *kfd) kfd_doorbell_fini(kfd); kfd_gtt_sa_fini(kfd); amdgpu_amdkfd_free_gtt_mem(kfd->kgd, kfd->gtt_mem); + if (hws_gws_support) + amdgpu_amdkfd_free_gws(kfd->kgd, kfd->gws); } kfree(kfd); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index b6a60fc3094b..57e87de34ab1 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -289,6 +289,9 @@ struct kfd_dev { /* Compute Profile ref. count */ atomic_t compute_profile; + + /* Global GWS resource shared b/t processes*/ + void *gws; }; enum kfd_mempool { |