to support PMC, PCSampling, SPM etc.
Signed-off-by: James Zhu <[email protected]>
---
amdgpu/amdgpu.h | 8 +++++++
amdgpu/amdgpu_profiler.c | 46 ++++++++++++++++++++++++++++++++++++++++
amdgpu/meson.build | 2 +-
include/drm/amdgpu_drm.h | 19 +++++++++++++++++
4 files changed, 74 insertions(+), 1 deletion(-)
create mode 100644 amdgpu/amdgpu_profiler.c
diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index 39b61539..87eec030 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -2072,6 +2072,14 @@ int amdgpu_userq_signal(amdgpu_device_handle dev,
int amdgpu_userq_wait(amdgpu_device_handle dev,
struct drm_amdgpu_userq_wait *wait_data);
+/**
+ * Acquire profiler version
+ * \param dev - \c [in] device handle
+ *
+ * \return 0 on success otherwise POSIX Error code
+ */
+int amdgpu_profiler_version(amdgpu_device_handle dev);
+
#ifdef __cplusplus
}
#endif
diff --git a/amdgpu/amdgpu_profiler.c b/amdgpu/amdgpu_profiler.c
new file mode 100644
index 00000000..8d4dffe4
--- /dev/null
+++ b/amdgpu/amdgpu_profiler.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2026 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include <string.h>
+#include <errno.h>
+#include "xf86drm.h"
+#include "amdgpu_drm.h"
+#include "amdgpu_internal.h"
+
+drm_public int
+amdgpu_profiler_version(amdgpu_device_handle dev)
+{
+ int ret;
+ struct drm_amdgpu_profiler_args user_arg;
+
+ if (!dev)
+ return -EINVAL;
+
+ memset(&user_arg, 0, sizeof(user_arg));
+ user_arg.op = AMDGPU_PROFILER_VERSION;
+
+ ret = drmCommandWriteRead(dev->fd, DRM_AMDGPU_PROFILER,
+ &user_arg, sizeof(user_arg));
+
+ return ret;
+}
diff --git a/amdgpu/meson.build b/amdgpu/meson.build
index 3962d32c..d781f2e9 100644
--- a/amdgpu/meson.build
+++ b/amdgpu/meson.build
@@ -27,7 +27,7 @@ libdrm_amdgpu = library(
files(
'amdgpu_asic_id.c', 'amdgpu_bo.c', 'amdgpu_cs.c', 'amdgpu_device.c',
'amdgpu_gpu_info.c', 'amdgpu_vamgr.c', 'amdgpu_vm.c', 'handle_table.c',
- 'amdgpu_userq.c',
+ 'amdgpu_userq.c', 'amdgpu_profiler.c',
),
config_file,
],
diff --git a/include/drm/amdgpu_drm.h b/include/drm/amdgpu_drm.h
index 947bf261..107d2b69 100644
--- a/include/drm/amdgpu_drm.h
+++ b/include/drm/amdgpu_drm.h
@@ -57,6 +57,7 @@ extern "C" {
#define DRM_AMDGPU_USERQ 0x16
#define DRM_AMDGPU_USERQ_SIGNAL 0x17
#define DRM_AMDGPU_USERQ_WAIT 0x18
+#define DRM_AMDGPU_PROFILER 0x20
#define DRM_IOCTL_AMDGPU_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE +
DRM_AMDGPU_GEM_CREATE, union drm_amdgpu_gem_create)
#define DRM_IOCTL_AMDGPU_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE +
DRM_AMDGPU_GEM_MMAP, union drm_amdgpu_gem_mmap)
@@ -77,6 +78,7 @@ extern "C" {
#define DRM_IOCTL_AMDGPU_USERQ DRM_IOWR(DRM_COMMAND_BASE +
DRM_AMDGPU_USERQ, union drm_amdgpu_userq)
#define DRM_IOCTL_AMDGPU_USERQ_SIGNAL DRM_IOWR(DRM_COMMAND_BASE +
DRM_AMDGPU_USERQ_SIGNAL, struct drm_amdgpu_userq_signal)
#define DRM_IOCTL_AMDGPU_USERQ_WAIT DRM_IOWR(DRM_COMMAND_BASE +
DRM_AMDGPU_USERQ_WAIT, struct drm_amdgpu_userq_wait)
+#define DRM_IOCTL_AMDGPU_PROFILER DRM_IOWR(DRM_COMMAND_BASE +
DRM_AMDGPU_PROFILER, struct drm_amdgpu_profiler_args)
/**
* DOC: memory domains
@@ -1616,6 +1618,23 @@ struct drm_amdgpu_info_gpuvm_fault {
#define AMDGPU_FAMILY_GC_11_5_0 150 /* GC 11.5.0 */
#define AMDGPU_FAMILY_GC_12_0_0 152 /* GC 12.0.0 */
+/*
+ * Supported Profiler Operations
+ */
+enum drm_amdgpu_profiler_ops {
+ AMDGPU_PROFILER_VERSION = 0,
+};
+
+struct drm_amdgpu_profiler_args {
+ __u32 op; /* amdgpu_profiler_op */
+ union {
+ __u32 version; /* AMDGPU_PROFILER_VERSION_NUM
+ * lower 16 bit: minor
+ * higher 16 bit: major
+ */
+ };
+};
