From: Ashutosh Dixit <ashutosh.dixit@intel.com>
To: igt-dev@lists.freedesktop.org
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Subject: [PATCH i-g-t 2/5] drm-uapi/xe: Sync with DRM_XE_OA_CAPS_OA_UNIT_GT_ID definition
Date: Tue, 25 Nov 2025 19:50:09 -0800 [thread overview]
Message-ID: <20251126035012.12967-3-ashutosh.dixit@intel.com> (raw)
In-Reply-To: <20251126035012.12967-1-ashutosh.dixit@intel.com>
This patch will be replaced by the actual kernel commit which defines
DRM_XE_OA_CAPS_OA_UNIT_GT_ID in xe_drm.h, after that commit is merged into
the kernel.
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
---
include/drm-uapi/xe_drm.h | 27 +++++++++++++++++++++++++--
1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/include/drm-uapi/xe_drm.h b/include/drm-uapi/xe_drm.h
index 89ab549354..b94e03487d 100644
--- a/include/drm-uapi/xe_drm.h
+++ b/include/drm-uapi/xe_drm.h
@@ -771,7 +771,11 @@ struct drm_xe_device_query {
* until the object is either bound to a virtual memory region via
* VM_BIND or accessed by the CPU. As a result, no backing memory is
* reserved at the time of GEM object creation.
- * - %DRM_XE_GEM_CREATE_FLAG_SCANOUT
+ * - %DRM_XE_GEM_CREATE_FLAG_SCANOUT - Indicates that the GEM object is
+ * intended for scanout via the display engine. When set, kernel ensures
+ * that the allocation is placed in a memory region compatible with the
+ * display engine requirements. This may impose restrictions on tiling,
+ * alignment, and memory placement to guarantee proper display functionality.
* - %DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM - When using VRAM as a
* possible placement, ensure that the corresponding VRAM allocation
* will always use the CPU accessible part of VRAM. This is important
@@ -1013,6 +1017,20 @@ struct drm_xe_vm_destroy {
* valid on VMs with DRM_XE_VM_CREATE_FLAG_FAULT_MODE set. The CPU address
* mirror flag are only valid for DRM_XE_VM_BIND_OP_MAP operations, the BO
* handle MBZ, and the BO offset MBZ.
+ * - %DRM_XE_VM_BIND_FLAG_MADVISE_AUTORESET - Can be used in combination with
+ * %DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR to reset madvises when the underlying
+ * CPU address space range is unmapped (typically with munmap(2) or brk(2)).
+ * The madvise values set with &DRM_IOCTL_XE_MADVISE are reset to the values
+ * that were present immediately after the &DRM_IOCTL_XE_VM_BIND.
+ * The reset GPU virtual address range is the intersection of the range bound
+ * using &DRM_IOCTL_XE_VM_BIND and the virtual CPU address space range
+ * unmapped.
+ * This functionality is present to mimic the behaviour of CPU address space
+ * madvises set using madvise(2), which are typically reset on unmap.
+ * Note: free(3) may or may not call munmap(2) and/or brk(2), and may thus
+ * not invoke autoreset. Neither will stack variables going out of scope.
+ * Therefore it's recommended to always explicitly reset the madvises when
+ * freeing the memory backing a region used in a &DRM_IOCTL_XE_MADVISE call.
*
* The @prefetch_mem_region_instance for %DRM_XE_VM_BIND_OP_PREFETCH can also be:
* - %DRM_XE_CONSULT_MEM_ADVISE_PREF_LOC, which ensures prefetching occurs in
@@ -1119,6 +1137,7 @@ struct drm_xe_vm_bind_op {
#define DRM_XE_VM_BIND_FLAG_DUMPABLE (1 << 3)
#define DRM_XE_VM_BIND_FLAG_CHECK_PXP (1 << 4)
#define DRM_XE_VM_BIND_FLAG_CPU_ADDR_MIRROR (1 << 5)
+#define DRM_XE_VM_BIND_FLAG_MADVISE_AUTORESET (1 << 6)
/** @flags: Bind flags */
__u32 flags;
@@ -1657,12 +1676,16 @@ struct drm_xe_oa_unit {
#define DRM_XE_OA_CAPS_OA_BUFFER_SIZE (1 << 2)
#define DRM_XE_OA_CAPS_WAIT_NUM_REPORTS (1 << 3)
#define DRM_XE_OA_CAPS_OAM (1 << 4)
+#define DRM_XE_OA_CAPS_OA_UNIT_GT_ID (1 << 5)
/** @oa_timestamp_freq: OA timestamp freq */
__u64 oa_timestamp_freq;
+ /** @gt_id: gt id for this OA unit */
+ __u64 gt_id;
+
/** @reserved: MBZ */
- __u64 reserved[4];
+ __u64 reserved[3];
/** @num_engines: number of engines in @eci array */
__u64 num_engines;
--
2.48.1
next prev parent reply other threads:[~2025-11-26 3:50 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-26 3:50 [PATCH i-g-t 0/5] OA: Run MMIO trigger tests on all OA units Ashutosh Dixit
2025-11-26 3:50 ` [PATCH i-g-t 1/5] tests/intel/xe_oa: Drop oa-unit-exclusive-stream-exec-q Ashutosh Dixit
2025-12-02 21:32 ` Umesh Nerlige Ramappa
2025-11-26 3:50 ` Ashutosh Dixit [this message]
2025-11-27 17:24 ` [PATCH i-g-t 2/5] drm-uapi/xe: Sync with DRM_XE_OA_CAPS_OA_UNIT_GT_ID definition Kamil Konieczny
2025-11-26 3:50 ` [PATCH i-g-t 3/5] tests/intel/xe_oa: Return hwe from same gt from oa_unit_engine() Ashutosh Dixit
2025-11-26 3:50 ` [PATCH i-g-t 4/5] tests/intel/xe_oa: Run mmio-trigger tests on all OA units Ashutosh Dixit
2025-12-02 21:37 ` Umesh Nerlige Ramappa
2025-11-26 3:50 ` [PATCH i-g-t 5/5] tests/intel/xe_oa: Use separate oa unit variables for caps and iterator Ashutosh Dixit
2025-12-02 21:59 ` Umesh Nerlige Ramappa
2025-11-26 4:27 ` ✓ Xe.CI.BAT: success for OA: Run MMIO trigger tests on all OA units Patchwork
2025-11-26 4:41 ` ✓ i915.CI.BAT: " Patchwork
2025-11-26 7:27 ` ✗ Xe.CI.Full: failure " Patchwork
2025-11-26 15:01 ` ✗ i915.CI.Full: " Patchwork
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