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drm/radeon/kms: check if vm is supported in VA ioctl 

Add a VM manager enabled field and use it to check if
vm is enabled.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: jglisse@redhat.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-01-06 09:38:15 -05:00 committed by Dave Airlie
parent cc1f719429
commit 67e915e49a
4 changed files with 18 additions and 3 deletions
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2
drivers/gpu/drm/radeon/radeon.h
View File

@ -668,6 +668,8 @@ struct radeon_vm_manager {
unsigned nvm;
/* vram base address for page table entry */
u64 vram_base_offset;
/* is vm enabled? */
bool enabled;
};
/*

4
drivers/gpu/drm/radeon/radeon_cs.c
View File

@ -234,8 +234,8 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
}
if ((p->cs_flags & RADEON_CS_USE_VM) &&
(p->rdev->family < CHIP_CAYMAN)) {
DRM_ERROR("VM not supported on asic!\n");
!p->rdev->vm_manager.enabled) {
DRM_ERROR("VM not active on asic!\n");
if (p->chunk_relocs_idx != -1)
kfree(p->chunks[p->chunk_relocs_idx].kdata);
if (p->chunk_flags_idx != -1)

10
drivers/gpu/drm/radeon/radeon_gart.c
View File

@ -286,6 +286,8 @@ int radeon_vm_manager_init(struct radeon_device *rdev)
{
int r;
rdev->vm_manager.enabled = false;
/* mark first vm as always in use, it's the system one */
r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager,
rdev->vm_manager.max_pfn * 8,
@ -295,7 +297,12 @@ int radeon_vm_manager_init(struct radeon_device *rdev)
(rdev->vm_manager.max_pfn * 8) >> 10);
return r;
}
return rdev->vm_manager.funcs->init(rdev);
r = rdev->vm_manager.funcs->init(rdev);
if (r == 0)
rdev->vm_manager.enabled = true;
return r;
}
/* cs mutex must be lock */
@ -334,6 +341,7 @@ void radeon_vm_manager_fini(struct radeon_device *rdev)
radeon_vm_manager_suspend(rdev);
rdev->vm_manager.funcs->fini(rdev);
radeon_sa_bo_manager_fini(rdev, &rdev->vm_manager.sa_manager);
rdev->vm_manager.enabled = false;
}
int radeon_vm_manager_start(struct radeon_device *rdev)

5
drivers/gpu/drm/radeon/radeon_gem.c
View File

@ -404,6 +404,11 @@ int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
u32 invalid_flags;
int r = 0;
if (!rdev->vm_manager.enabled) {
args->operation = RADEON_VA_RESULT_ERROR;
return -ENOTTY;
}
/* !! DONT REMOVE !!
* We don't support vm_id yet, to be sure we don't have have broken
* userspace, reject anyone trying to use non 0 value thus moving