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drm/amdgpu: Add preferred_domain check when determine XGMI state

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Avoid unnecessary XGMI hight pstate trigger when mapping none-vram memory for peer device

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
shaoyunl 2019-03-26 14:47:57 -04:00 committed by Alex Deucher
parent c4229c6e37
commit b4ae4fe6cd
2 changed files with 13 additions and 1 deletions
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11
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
View File

@ -31,6 +31,7 @@
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "amdgpu_display.h"
#include "amdgpu_xgmi.h"
void amdgpu_gem_object_free(struct drm_gem_object *gobj)
{
@ -668,6 +669,7 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
struct amdgpu_device *adev = dev->dev_private;
struct drm_amdgpu_gem_op *args = data;
struct drm_gem_object *gobj;
struct amdgpu_vm_bo_base *base;
struct amdgpu_bo *robj;
int r;
@ -706,6 +708,15 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
amdgpu_bo_unreserve(robj);
break;
}
for (base = robj->vm_bo; base; base = base->next)
if (amdgpu_xgmi_same_hive(amdgpu_ttm_adev(robj->tbo.bdev),
amdgpu_ttm_adev(base->vm->root.base.bo->tbo.bdev))) {
r = -EINVAL;
amdgpu_bo_unreserve(robj);
goto out;
}
robj->preferred_domains = args->value & (AMDGPU_GEM_DOMAIN_VRAM |
AMDGPU_GEM_DOMAIN_GTT |
AMDGPU_GEM_DOMAIN_CPU);

3
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@ -2037,7 +2037,8 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev,
INIT_LIST_HEAD(&bo_va->valids);
INIT_LIST_HEAD(&bo_va->invalids);
if (bo && amdgpu_xgmi_same_hive(adev, amdgpu_ttm_adev(bo->tbo.bdev))) {
if (bo && amdgpu_xgmi_same_hive(adev, amdgpu_ttm_adev(bo->tbo.bdev)) &&
(bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM)) {
bo_va->is_xgmi = true;
mutex_lock(&adev->vm_manager.lock_pstate);
/* Power up XGMI if it can be potentially used */