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drm/xe/multi_queue: Add exec_queue set_property ioctl support

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This patch adds support for exec_queue set_property ioctl.
It is derived from the original work which is part of
https://patchwork.freedesktop.org/series/112188/

Currently only DRM_XE_EXEC_QUEUE_SET_PROPERTY_MULTI_QUEUE_PRIORITY
property can be dynamically set.

v2: Check for and update kernel-doc which property this ioctl
    supports (Matt Brost)

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Pallavi Mishra <pallavi.mishra@intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20251211010249.1647839-25-niranjana.vishwanathapura@intel.com
This commit is contained in:
Niranjana Vishwanathapura
2025-12-10 17:02:54 -08:00
parent d630abd604
commit 2a31ea17d5
4 changed files with 65 additions and 0 deletions
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2
drivers/gpu/drm/xe/xe_device.c
View File

@@ -207,6 +207,8 @@ static const struct drm_ioctl_desc xe_ioctls[] = {
DRM_IOCTL_DEF_DRV(XE_MADVISE, xe_vm_madvise_ioctl, DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(XE_VM_QUERY_MEM_RANGE_ATTRS, xe_vm_query_vmas_attrs_ioctl,
DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(XE_EXEC_QUEUE_SET_PROPERTY, xe_exec_queue_set_property_ioctl,
DRM_RENDER_ALLOW),
};
static long xe_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)

35
drivers/gpu/drm/xe/xe_exec_queue.c
View File

@@ -790,6 +790,41 @@ static const xe_exec_queue_set_property_fn exec_queue_set_property_funcs[] = {
exec_queue_set_multi_queue_priority,
};
int xe_exec_queue_set_property_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct xe_device *xe = to_xe_device(dev);
struct xe_file *xef = to_xe_file(file);
struct drm_xe_exec_queue_set_property *args = data;
struct xe_exec_queue *q;
int ret;
u32 idx;
if (XE_IOCTL_DBG(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_DBG(xe, args->property !=
DRM_XE_EXEC_QUEUE_SET_PROPERTY_MULTI_QUEUE_PRIORITY))
return -EINVAL;
q = xe_exec_queue_lookup(xef, args->exec_queue_id);
if (XE_IOCTL_DBG(xe, !q))
return -ENOENT;
idx = array_index_nospec(args->property,
ARRAY_SIZE(exec_queue_set_property_funcs));
ret = exec_queue_set_property_funcs[idx](xe, q, args->value);
if (XE_IOCTL_DBG(xe, ret))
goto err_post_lookup;
xe_exec_queue_put(q);
return 0;
err_post_lookup:
xe_exec_queue_put(q);
return ret;
}
static int exec_queue_user_ext_check(struct xe_exec_queue *q, u64 properties)
{
u64 secondary_queue_valid_props = BIT_ULL(DRM_XE_EXEC_QUEUE_SET_PROPERTY_MULTI_GROUP) |

2
drivers/gpu/drm/xe/xe_exec_queue.h
View File

@@ -125,6 +125,8 @@ int xe_exec_queue_destroy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
int xe_exec_queue_get_property_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
int xe_exec_queue_set_property_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);
enum xe_exec_queue_priority xe_exec_queue_device_get_max_priority(struct xe_device *xe);
void xe_exec_queue_last_fence_put(struct xe_exec_queue *e, struct xe_vm *vm);

26
include/uapi/drm/xe_drm.h
View File

@@ -106,6 +106,7 @@ extern "C" {
#define DRM_XE_OBSERVATION 0x0b
#define DRM_XE_MADVISE 0x0c
#define DRM_XE_VM_QUERY_MEM_RANGE_ATTRS 0x0d
#define DRM_XE_EXEC_QUEUE_SET_PROPERTY 0x0e
/* Must be kept compact -- no holes */
@@ -123,6 +124,7 @@ extern "C" {
#define DRM_IOCTL_XE_OBSERVATION DRM_IOW(DRM_COMMAND_BASE + DRM_XE_OBSERVATION, struct drm_xe_observation_param)
#define DRM_IOCTL_XE_MADVISE DRM_IOW(DRM_COMMAND_BASE + DRM_XE_MADVISE, struct drm_xe_madvise)
#define DRM_IOCTL_XE_VM_QUERY_MEM_RANGE_ATTRS DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_VM_QUERY_MEM_RANGE_ATTRS, struct drm_xe_vm_query_mem_range_attr)
#define DRM_IOCTL_XE_EXEC_QUEUE_SET_PROPERTY DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_SET_PROPERTY, struct drm_xe_exec_queue_set_property)
/**
* DOC: Xe IOCTL Extensions
@@ -2315,6 +2317,30 @@ struct drm_xe_vm_query_mem_range_attr {
};
/**
* struct drm_xe_exec_queue_set_property - exec queue set property
*
* Sets execution queue properties dynamically.
* Currently only %DRM_XE_EXEC_QUEUE_SET_PROPERTY_MULTI_QUEUE_PRIORITY
* property can be dynamically set.
*/
struct drm_xe_exec_queue_set_property {
/** @extensions: Pointer to the first extension struct, if any */
__u64 extensions;
/** @exec_queue_id: Exec queue ID */
__u32 exec_queue_id;
/** @property: property to set */
__u32 property;
/** @value: property value */
__u64 value;
/** @reserved: Reserved */
__u64 reserved[2];
};
#if defined(__cplusplus)
}
#endif