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X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: BN7l6r+vkv9BhPuyp1m7cBSSG1w7IEKOQjcqJIHf5iCe68cjuaBxFftJ98/oTPa0lsp1T6A+JaxhMzBUZu5PBe6kVcowqzN2rfhz8evYD4A= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR11MB7959 X-OriginatorOrg: intel.com X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" On 03-04-2026 03:20, Matthew Brost wrote: > On Wed, Mar 18, 2026 at 01:14:48PM +0530, Himal Prasad Ghimiray wrote: >> Move xe_pagefault_asid_to_vm() to xe_device.c as >> xe_device_asid_to_fault_vm() for reuse in access counter handling. >> >> Signed-off-by: Himal Prasad Ghimiray >> --- >> drivers/gpu/drm/xe/xe_device.c | 25 +++++++++++++++++++++++++ >> drivers/gpu/drm/xe/xe_device.h | 1 + >> drivers/gpu/drm/xe/xe_pagefault.c | 16 +--------------- >> 3 files changed, 27 insertions(+), 15 deletions(-) >> >> diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c >> index 8773c2d2f69a..ba2f0e345257 100644 >> --- a/drivers/gpu/drm/xe/xe_device.c >> +++ b/drivers/gpu/drm/xe/xe_device.c >> @@ -1399,3 +1399,28 @@ struct xe_vm *xe_device_asid_to_vm(struct xe_device *xe, u32 asid) >> >> return vm; >> } >> + >> +/** >> + * xe_device_asid_to_fault_vm() - Find FAULT VM from ASID >> + * @xe: the &xe_device >> + * @asid: Address space ID >> + * >> + * Find a FAULTING VM from ASID and take a reference to VM which >> + * caller must drop. Reclaim safe. >> + * >> + * Return: VM on success, ERR_PTR on failure >> + */ >> +struct xe_vm *xe_device_asid_to_fault_vm(struct xe_device *xe, u32 asid) > > I think the recently merged xe_pagefault_save_to_vm() function can reuse > this function now too. For xe_pagefault_save_to_vm we need to use existing function xe_device_asid_to_vm instead of xe_device_asid_to_fault_vm(). Will submit patch for same too. Thanks. > > Patch LGTM to though. > > Matt > >> +{ >> + struct xe_vm *vm; >> + >> + down_read(&xe->usm.lock); >> + vm = xa_load(&xe->usm.asid_to_vm, asid); >> + if (vm && xe_vm_in_fault_mode(vm)) >> + xe_vm_get(vm); >> + else >> + vm = ERR_PTR(-EINVAL); >> + up_read(&xe->usm.lock); >> + >> + return vm; >> +} >> diff --git a/drivers/gpu/drm/xe/xe_device.h b/drivers/gpu/drm/xe/xe_device.h >> index c4d267002661..e746f5c7cce0 100644 >> --- a/drivers/gpu/drm/xe/xe_device.h >> +++ b/drivers/gpu/drm/xe/xe_device.h >> @@ -209,6 +209,7 @@ int xe_is_injection_active(void); >> bool xe_is_xe_file(const struct file *file); >> >> struct xe_vm *xe_device_asid_to_vm(struct xe_device *xe, u32 asid); >> +struct xe_vm *xe_device_asid_to_fault_vm(struct xe_device *xe, u32 asid); >> >> /* >> * Occasionally it is seen that the G2H worker starts running after a delay of more than >> diff --git a/drivers/gpu/drm/xe/xe_pagefault.c b/drivers/gpu/drm/xe/xe_pagefault.c >> index 8c159e3512ee..a4ee9393e4af 100644 >> --- a/drivers/gpu/drm/xe/xe_pagefault.c >> +++ b/drivers/gpu/drm/xe/xe_pagefault.c >> @@ -121,20 +121,6 @@ xe_pagefault_access_is_atomic(enum xe_pagefault_access_type access_type) >> return (access_type & XE_PAGEFAULT_ACCESS_TYPE_MASK) == XE_PAGEFAULT_ACCESS_TYPE_ATOMIC; >> } >> >> -static struct xe_vm *xe_pagefault_asid_to_vm(struct xe_device *xe, u32 asid) >> -{ >> - struct xe_vm *vm; >> - >> - down_read(&xe->usm.lock); >> - vm = xa_load(&xe->usm.asid_to_vm, asid); >> - if (vm && xe_vm_in_fault_mode(vm)) >> - xe_vm_get(vm); >> - else >> - vm = ERR_PTR(-EINVAL); >> - up_read(&xe->usm.lock); >> - >> - return vm; >> -} >> >> static int xe_pagefault_service(struct xe_pagefault *pf) >> { >> @@ -149,7 +135,7 @@ static int xe_pagefault_service(struct xe_pagefault *pf) >> if (pf->consumer.fault_type_level == XE_PAGEFAULT_TYPE_LEVEL_NACK) >> return -EFAULT; >> >> - vm = xe_pagefault_asid_to_vm(xe, pf->consumer.asid); >> + vm = xe_device_asid_to_fault_vm(xe, pf->consumer.asid); >> if (IS_ERR(vm)) >> return PTR_ERR(vm); >> >> -- >> 2.34.1 >>