* [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos
@ 2022-06-14 9:03 Lang Yu
2022-06-14 9:08 ` Christian König
2022-06-30 21:30 ` Felix Kuehling
0 siblings, 2 replies; 4+ messages in thread
From: Lang Yu @ 2022-06-14 9:03 UTC (permalink / raw)
To: amd-gfx
Cc: Alex Deucher, Felix Kuehling, Huang Rui, Lang Yu, Christian Koenig
We don't need to validate and map root PD specially here,
it would be validated and mapped by amdgpu_vm_validate_pt_bos
if it is evicted.
The special case is when turning a GFX VM to a compute VM,
if vm_update_mode changed, we should make sure root PD gets
mapped. So just map root PD after updating vm->update_funcs
in amdgpu_vm_make_compute whether the vm_update_mode changed
or not.
v3:
- Add some comments suggested by Christian.
v2:
- Don't rename vm_validate_pt_pd_bos and make it public.
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 14 --------------
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 ++++++++
2 files changed, 8 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 50bb590c3306..c9ef242177e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -439,22 +439,8 @@ static int vm_validate_pt_pd_bos(struct amdgpu_vm *vm)
return ret;
}
- ret = amdgpu_amdkfd_validate_vm_bo(NULL, pd);
- if (ret) {
- pr_err("failed to validate PD\n");
- return ret;
- }
-
vm->pd_phys_addr = amdgpu_gmc_pd_addr(vm->root.bo);
- if (vm->use_cpu_for_update) {
- ret = amdgpu_bo_kmap(pd, NULL);
- if (ret) {
- pr_err("failed to kmap PD, ret=%d\n", ret);
- return ret;
- }
- }
-
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 703552f9a6d7..3a6b827e540c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2225,6 +2225,14 @@ int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm)
} else {
vm->update_funcs = &amdgpu_vm_sdma_funcs;
}
+ /*
+ * Make sure root PD gets mapped. As vm_update_mode could be changed
+ * when turning a GFX VM into a compute VM.
+ */
+ r = vm->update_funcs->map_table(to_amdgpu_bo_vm(vm->root.bo));
+ if (r)
+ goto unreserve_bo;
+
dma_fence_put(vm->last_update);
vm->last_update = NULL;
vm->is_compute_context = true;
--
2.25.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos
2022-06-14 9:03 [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos Lang Yu
@ 2022-06-14 9:08 ` Christian König
2022-06-30 14:18 ` Yu, Lang
2022-06-30 21:30 ` Felix Kuehling
1 sibling, 1 reply; 4+ messages in thread
From: Christian König @ 2022-06-14 9:08 UTC (permalink / raw)
To: Lang Yu, amd-gfx; +Cc: Alex Deucher, Felix Kuehling, Huang Rui
Am 14.06.22 um 11:03 schrieb Lang Yu:
> We don't need to validate and map root PD specially here,
> it would be validated and mapped by amdgpu_vm_validate_pt_bos
> if it is evicted.
>
> The special case is when turning a GFX VM to a compute VM,
> if vm_update_mode changed, we should make sure root PD gets
> mapped. So just map root PD after updating vm->update_funcs
> in amdgpu_vm_make_compute whether the vm_update_mode changed
> or not.
>
> v3:
> - Add some comments suggested by Christian.
>
> v2:
> - Don't rename vm_validate_pt_pd_bos and make it public.
>
> Signed-off-by: Lang Yu <Lang.Yu@amd.com>
I can't judge the kfd part, but the VM stuff looks good to me now.
Acked-by: Christian König <christian.koenig@amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 14 --------------
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 ++++++++
> 2 files changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> index 50bb590c3306..c9ef242177e2 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> @@ -439,22 +439,8 @@ static int vm_validate_pt_pd_bos(struct amdgpu_vm *vm)
> return ret;
> }
>
> - ret = amdgpu_amdkfd_validate_vm_bo(NULL, pd);
> - if (ret) {
> - pr_err("failed to validate PD\n");
> - return ret;
> - }
> -
> vm->pd_phys_addr = amdgpu_gmc_pd_addr(vm->root.bo);
>
> - if (vm->use_cpu_for_update) {
> - ret = amdgpu_bo_kmap(pd, NULL);
> - if (ret) {
> - pr_err("failed to kmap PD, ret=%d\n", ret);
> - return ret;
> - }
> - }
> -
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index 703552f9a6d7..3a6b827e540c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -2225,6 +2225,14 @@ int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm)
> } else {
> vm->update_funcs = &amdgpu_vm_sdma_funcs;
> }
> + /*
> + * Make sure root PD gets mapped. As vm_update_mode could be changed
> + * when turning a GFX VM into a compute VM.
> + */
> + r = vm->update_funcs->map_table(to_amdgpu_bo_vm(vm->root.bo));
> + if (r)
> + goto unreserve_bo;
> +
> dma_fence_put(vm->last_update);
> vm->last_update = NULL;
> vm->is_compute_context = true;
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos
2022-06-14 9:08 ` Christian König
@ 2022-06-30 14:18 ` Yu, Lang
0 siblings, 0 replies; 4+ messages in thread
From: Yu, Lang @ 2022-06-30 14:18 UTC (permalink / raw)
To: Kuehling, Felix, amd-gfx
Cc: Deucher, Alexander, Huang, Ray, Koenig, Christian
[AMD Official Use Only - General]
Ping!
Hi Felix, what do you think? Thanks!
Regards,
Lang
>-----Original Message-----
>From: Koenig, Christian <Christian.Koenig@amd.com>
>Sent: Tuesday, June 14, 2022 5:08 PM
>To: Yu, Lang <Lang.Yu@amd.com>; amd-gfx@lists.freedesktop.org
>Cc: Kuehling, Felix <Felix.Kuehling@amd.com>; Deucher, Alexander
><Alexander.Deucher@amd.com>; Huang, Ray <Ray.Huang@amd.com>
>Subject: Re: [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos
>
>Am 14.06.22 um 11:03 schrieb Lang Yu:
>> We don't need to validate and map root PD specially here, it would be
>> validated and mapped by amdgpu_vm_validate_pt_bos if it is evicted.
>>
>> The special case is when turning a GFX VM to a compute VM, if
>> vm_update_mode changed, we should make sure root PD gets mapped. So
>> just map root PD after updating vm->update_funcs in
>> amdgpu_vm_make_compute whether the vm_update_mode changed or
>not.
>>
>> v3:
>> - Add some comments suggested by Christian.
>>
>> v2:
>> - Don't rename vm_validate_pt_pd_bos and make it public.
>>
>> Signed-off-by: Lang Yu <Lang.Yu@amd.com>
>
>I can't judge the kfd part, but the VM stuff looks good to me now.
>
>Acked-by: Christian König <christian.koenig@amd.com>
>
>> ---
>> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 14 -------------
>-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 ++++++++
>> 2 files changed, 8 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
>> index 50bb590c3306..c9ef242177e2 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
>> @@ -439,22 +439,8 @@ static int vm_validate_pt_pd_bos(struct
>amdgpu_vm *vm)
>> return ret;
>> }
>>
>> - ret = amdgpu_amdkfd_validate_vm_bo(NULL, pd);
>> - if (ret) {
>> - pr_err("failed to validate PD\n");
>> - return ret;
>> - }
>> -
>> vm->pd_phys_addr = amdgpu_gmc_pd_addr(vm->root.bo);
>>
>> - if (vm->use_cpu_for_update) {
>> - ret = amdgpu_bo_kmap(pd, NULL);
>> - if (ret) {
>> - pr_err("failed to kmap PD, ret=%d\n", ret);
>> - return ret;
>> - }
>> - }
>> -
>> return 0;
>> }
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> index 703552f9a6d7..3a6b827e540c 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> @@ -2225,6 +2225,14 @@ int amdgpu_vm_make_compute(struct
>amdgpu_device *adev, struct amdgpu_vm *vm)
>> } else {
>> vm->update_funcs = &amdgpu_vm_sdma_funcs;
>> }
>> + /*
>> + * Make sure root PD gets mapped. As vm_update_mode could be
>changed
>> + * when turning a GFX VM into a compute VM.
>> + */
>> + r = vm->update_funcs->map_table(to_amdgpu_bo_vm(vm-
>>root.bo));
>> + if (r)
>> + goto unreserve_bo;
>> +
>> dma_fence_put(vm->last_update);
>> vm->last_update = NULL;
>> vm->is_compute_context = true;
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos
2022-06-14 9:03 [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos Lang Yu
2022-06-14 9:08 ` Christian König
@ 2022-06-30 21:30 ` Felix Kuehling
1 sibling, 0 replies; 4+ messages in thread
From: Felix Kuehling @ 2022-06-30 21:30 UTC (permalink / raw)
To: Lang Yu, amd-gfx; +Cc: Alex Deucher, Huang Rui, Christian Koenig
On 2022-06-14 05:03, Lang Yu wrote:
> We don't need to validate and map root PD specially here,
> it would be validated and mapped by amdgpu_vm_validate_pt_bos
> if it is evicted.
>
> The special case is when turning a GFX VM to a compute VM,
> if vm_update_mode changed, we should make sure root PD gets
> mapped. So just map root PD after updating vm->update_funcs
> in amdgpu_vm_make_compute whether the vm_update_mode changed
> or not.
>
> v3:
> - Add some comments suggested by Christian.
>
> v2:
> - Don't rename vm_validate_pt_pd_bos and make it public.
>
> Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 14 --------------
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 ++++++++
> 2 files changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> index 50bb590c3306..c9ef242177e2 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> @@ -439,22 +439,8 @@ static int vm_validate_pt_pd_bos(struct amdgpu_vm *vm)
> return ret;
> }
>
> - ret = amdgpu_amdkfd_validate_vm_bo(NULL, pd);
> - if (ret) {
> - pr_err("failed to validate PD\n");
> - return ret;
> - }
> -
> vm->pd_phys_addr = amdgpu_gmc_pd_addr(vm->root.bo);
>
> - if (vm->use_cpu_for_update) {
> - ret = amdgpu_bo_kmap(pd, NULL);
> - if (ret) {
> - pr_err("failed to kmap PD, ret=%d\n", ret);
> - return ret;
> - }
> - }
> -
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index 703552f9a6d7..3a6b827e540c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -2225,6 +2225,14 @@ int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm)
> } else {
> vm->update_funcs = &amdgpu_vm_sdma_funcs;
> }
> + /*
> + * Make sure root PD gets mapped. As vm_update_mode could be changed
> + * when turning a GFX VM into a compute VM.
> + */
> + r = vm->update_funcs->map_table(to_amdgpu_bo_vm(vm->root.bo));
> + if (r)
> + goto unreserve_bo;
> +
> dma_fence_put(vm->last_update);
> vm->last_update = NULL;
> vm->is_compute_context = true;
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-06-30 21:30 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2022-06-14 9:03 [PATCH v3] drm/amdkfd: simplify vm_validate_pt_pd_bos Lang Yu
2022-06-14 9:08 ` Christian König
2022-06-30 14:18 ` Yu, Lang
2022-06-30 21:30 ` Felix Kuehling
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