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drm/xe/xe_exec_queue: Add check for access counter granularity

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Add conditional check for access counter granularity.
This check will return -EINVAL if granularity is beyond 64M
which is a hardware limitation.

v2: Defined
XE_ACC_GRANULARITY_128K 0
XE_ACC_GRANULARITY_2M 1
XE_ACC_GRANULARITY_16M 2
XE_ACC_GRANULARITY_64M 3
as part of uAPI.
So, that user can also use it.(Oak)

v3: Move uAPI to proper location and give proper
documentation.(Brian, Oak)

Cc: Oak Zeng <oak.zeng@intel.com>
Cc: Janga Rahul Kumar <janga.rahul.kumar@intel.com>
Cc: Brian Welty <brian.welty@intel.com>
Signed-off-by: Priyanka Dandamudi <priyanka.dandamudi@intel.com>
Reviewed-by: Oak Zeng <oak.zeng@intel.com>
Reviewed-by: Oak Zeng <oak.zeng@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Priyanka Dandamudi 2023-10-27 10:55:07 +05:30 committed by Rodrigo Vivi
parent 65e9573588
commit b8d70702de
2 changed files with 17 additions and 0 deletions
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3
drivers/gpu/drm/xe/xe_exec_queue.c
View File

@ -393,6 +393,9 @@ static int exec_queue_set_acc_granularity(struct xe_device *xe, struct xe_exec_q
if (XE_IOCTL_DBG(xe, !xe->info.supports_usm))
return -EINVAL;
if (value > XE_ACC_GRANULARITY_64M)
return -EINVAL;
q->usm.acc_granularity = value;
return 0;

14
include/uapi/drm/xe_drm.h
View File

@ -731,6 +731,20 @@ struct drm_xe_vm_bind {
__u64 reserved[2];
};
/* For use with XE_EXEC_QUEUE_SET_PROPERTY_ACC_GRANULARITY */
/* Monitor 128KB contiguous region with 4K sub-granularity */
#define XE_ACC_GRANULARITY_128K 0
/* Monitor 2MB contiguous region with 64KB sub-granularity */
#define XE_ACC_GRANULARITY_2M 1
/* Monitor 16MB contiguous region with 512KB sub-granularity */
#define XE_ACC_GRANULARITY_16M 2
/* Monitor 64MB contiguous region with 2M sub-granularity */
#define XE_ACC_GRANULARITY_64M 3
/**
* struct drm_xe_exec_queue_set_property - exec queue set property
*