[PATCH V4 10/10] accel/amdxdna: Add query functions
From: Lizhi Hou
Date: Fri Oct 11 2024 - 19:14:07 EST
Add GET_INFO ioctl to retrieve hardware information, including
AIE, clock, hardware context etc.
Co-developed-by: Min Ma <min.ma@xxxxxxx>
Signed-off-by: Min Ma <min.ma@xxxxxxx>
Signed-off-by: Lizhi Hou <lizhi.hou@xxxxxxx>
---
drivers/accel/amdxdna/aie2_message.c | 65 +++++++
drivers/accel/amdxdna/aie2_pci.c | 222 ++++++++++++++++++++++++
drivers/accel/amdxdna/aie2_pci.h | 1 +
drivers/accel/amdxdna/amdxdna_pci_drv.c | 19 ++
drivers/accel/amdxdna/amdxdna_pci_drv.h | 3 +
include/uapi/drm/amdxdna_accel.h | 166 ++++++++++++++++++
6 files changed, 476 insertions(+)
diff --git a/drivers/accel/amdxdna/aie2_message.c b/drivers/accel/amdxdna/aie2_message.c
index 6e65b611b691..11686f3c4464 100644
--- a/drivers/accel/amdxdna/aie2_message.c
+++ b/drivers/accel/amdxdna/aie2_message.c
@@ -307,6 +307,71 @@ int aie2_map_host_buf(struct amdxdna_dev_hdl *ndev, u32 context_id, u64 addr, u6
return 0;
}
+int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf,
+ u32 size, u32 *cols_filled)
+{
+ DECLARE_AIE2_MSG(aie_column_info, MSG_OP_QUERY_COL_STATUS);
+ struct amdxdna_dev *xdna = ndev->xdna;
+ struct amdxdna_client *client;
+ struct amdxdna_hwctx *hwctx;
+ dma_addr_t dma_addr;
+ u32 aie_bitmap = 0;
+ u8 *buff_addr;
+ int next = 0;
+ int ret, idx;
+
+ buff_addr = dma_alloc_noncoherent(xdna->ddev.dev, size, &dma_addr,
+ DMA_FROM_DEVICE, GFP_KERNEL);
+ if (!buff_addr)
+ return -ENOMEM;
+
+ /* Go through each hardware context and mark the AIE columns that are active */
+ list_for_each_entry(client, &xdna->client_list, node) {
+ idx = srcu_read_lock(&client->hwctx_srcu);
+ idr_for_each_entry_continue(&client->hwctx_idr, hwctx, next)
+ aie_bitmap |= amdxdna_hwctx_col_map(hwctx);
+ srcu_read_unlock(&client->hwctx_srcu, idx);
+ }
+
+ *cols_filled = 0;
+ req.dump_buff_addr = dma_addr;
+ req.dump_buff_size = size;
+ req.num_cols = hweight32(aie_bitmap);
+ req.aie_bitmap = aie_bitmap;
+
+ drm_clflush_virt_range(buff_addr, size); /* device can access */
+ ret = aie2_send_mgmt_msg_wait(ndev, &msg);
+ if (ret) {
+ XDNA_ERR(xdna, "Error during NPU query, status %d", ret);
+ goto fail;
+ }
+
+ if (resp.status != AIE2_STATUS_SUCCESS) {
+ XDNA_ERR(xdna, "Query NPU status failed, status 0x%x", resp.status);
+ ret = -EINVAL;
+ goto fail;
+ }
+ XDNA_DBG(xdna, "Query NPU status completed");
+
+ if (size < resp.size) {
+ ret = -EINVAL;
+ XDNA_ERR(xdna, "Bad buffer size. Available: %u. Needs: %u", size, resp.size);
+ goto fail;
+ }
+
+ if (copy_to_user(buf, buff_addr, resp.size)) {
+ ret = -EFAULT;
+ XDNA_ERR(xdna, "Failed to copy NPU status to user space");
+ goto fail;
+ }
+
+ *cols_filled = aie_bitmap;
+
+fail:
+ dma_free_noncoherent(xdna->ddev.dev, size, buff_addr, dma_addr, DMA_FROM_DEVICE);
+ return ret;
+}
+
int aie2_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size,
void *handle, int (*cb)(void*, const u32 *, size_t))
{
diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c
index ff872f2389f7..385a5939944d 100644
--- a/drivers/accel/amdxdna/aie2_pci.c
+++ b/drivers/accel/amdxdna/aie2_pci.c
@@ -5,6 +5,7 @@
#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
+#include <drm/drm_drv.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_print.h>
@@ -528,11 +529,232 @@ static void aie2_fini(struct amdxdna_dev *xdna)
pci_free_irq_vectors(pdev);
}
+static int aie2_get_aie_status(struct amdxdna_client *client,
+ struct amdxdna_drm_get_info *args)
+{
+ struct amdxdna_drm_query_aie_status status;
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_dev_hdl *ndev;
+ int ret;
+
+ ndev = xdna->dev_handle;
+ if (copy_from_user(&status, u64_to_user_ptr(args->buffer), sizeof(status))) {
+ XDNA_ERR(xdna, "Failed to copy AIE request into kernel");
+ return -EFAULT;
+ }
+
+ if (ndev->metadata.cols * ndev->metadata.size < status.buffer_size) {
+ XDNA_ERR(xdna, "Invalid buffer size. Given Size: %u. Need Size: %u.",
+ status.buffer_size, ndev->metadata.cols * ndev->metadata.size);
+ return -EINVAL;
+ }
+
+ ret = aie2_query_status(ndev, u64_to_user_ptr(status.buffer),
+ status.buffer_size, &status.cols_filled);
+ if (ret) {
+ XDNA_ERR(xdna, "Failed to get AIE status info. Ret: %d", ret);
+ return ret;
+ }
+
+ if (copy_to_user(u64_to_user_ptr(args->buffer), &status, sizeof(status))) {
+ XDNA_ERR(xdna, "Failed to copy AIE request info to user space");
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int aie2_get_aie_metadata(struct amdxdna_client *client,
+ struct amdxdna_drm_get_info *args)
+{
+ struct amdxdna_drm_query_aie_metadata *meta;
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_dev_hdl *ndev;
+ int ret = 0;
+
+ ndev = xdna->dev_handle;
+ meta = kzalloc(sizeof(*meta), GFP_KERNEL);
+ if (!meta)
+ return -ENOMEM;
+
+ meta->col_size = ndev->metadata.size;
+ meta->cols = ndev->metadata.cols;
+ meta->rows = ndev->metadata.rows;
+
+ meta->version.major = ndev->metadata.version.major;
+ meta->version.minor = ndev->metadata.version.minor;
+
+ meta->core.row_count = ndev->metadata.core.row_count;
+ meta->core.row_start = ndev->metadata.core.row_start;
+ meta->core.dma_channel_count = ndev->metadata.core.dma_channel_count;
+ meta->core.lock_count = ndev->metadata.core.lock_count;
+ meta->core.event_reg_count = ndev->metadata.core.event_reg_count;
+
+ meta->mem.row_count = ndev->metadata.mem.row_count;
+ meta->mem.row_start = ndev->metadata.mem.row_start;
+ meta->mem.dma_channel_count = ndev->metadata.mem.dma_channel_count;
+ meta->mem.lock_count = ndev->metadata.mem.lock_count;
+ meta->mem.event_reg_count = ndev->metadata.mem.event_reg_count;
+
+ meta->shim.row_count = ndev->metadata.shim.row_count;
+ meta->shim.row_start = ndev->metadata.shim.row_start;
+ meta->shim.dma_channel_count = ndev->metadata.shim.dma_channel_count;
+ meta->shim.lock_count = ndev->metadata.shim.lock_count;
+ meta->shim.event_reg_count = ndev->metadata.shim.event_reg_count;
+
+ if (copy_to_user(u64_to_user_ptr(args->buffer), meta, sizeof(*meta)))
+ ret = -EFAULT;
+
+ kfree(meta);
+ return ret;
+}
+
+static int aie2_get_aie_version(struct amdxdna_client *client,
+ struct amdxdna_drm_get_info *args)
+{
+ struct amdxdna_drm_query_aie_version version;
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_dev_hdl *ndev;
+
+ ndev = xdna->dev_handle;
+ version.major = ndev->version.major;
+ version.minor = ndev->version.minor;
+
+ if (copy_to_user(u64_to_user_ptr(args->buffer), &version, sizeof(version)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int aie2_get_clock_metadata(struct amdxdna_client *client,
+ struct amdxdna_drm_get_info *args)
+{
+ struct amdxdna_drm_query_clock_metadata *clock;
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_dev_hdl *ndev;
+ int ret = 0;
+
+ ndev = xdna->dev_handle;
+ clock = kzalloc(sizeof(*clock), GFP_KERNEL);
+ if (!clock)
+ return -ENOMEM;
+
+ memcpy(clock->mp_npu_clock.name, ndev->mp_npu_clock.name,
+ sizeof(clock->mp_npu_clock.name));
+ clock->mp_npu_clock.freq_mhz = ndev->mp_npu_clock.freq_mhz;
+ memcpy(clock->h_clock.name, ndev->h_clock.name, sizeof(clock->h_clock.name));
+ clock->h_clock.freq_mhz = ndev->h_clock.freq_mhz;
+
+ if (copy_to_user(u64_to_user_ptr(args->buffer), clock, sizeof(*clock)))
+ ret = -EFAULT;
+
+ kfree(clock);
+ return ret;
+}
+
+static int aie2_get_hwctx_status(struct amdxdna_client *client,
+ struct amdxdna_drm_get_info *args)
+{
+ struct amdxdna_drm_query_hwctx __user *buf;
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_drm_query_hwctx *tmp;
+ struct amdxdna_client *tmp_client;
+ struct amdxdna_hwctx *hwctx;
+ bool overflow = false;
+ u32 req_bytes = 0;
+ u32 hw_i = 0;
+ int ret = 0;
+ int next;
+ int idx;
+
+ drm_WARN_ON(&xdna->ddev, !mutex_is_locked(&xdna->dev_lock));
+
+ tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ buf = u64_to_user_ptr(args->buffer);
+ list_for_each_entry(tmp_client, &xdna->client_list, node) {
+ idx = srcu_read_lock(&tmp_client->hwctx_srcu);
+ next = 0;
+ idr_for_each_entry_continue(&tmp_client->hwctx_idr, hwctx, next) {
+ req_bytes += sizeof(*tmp);
+ if (args->buffer_size < req_bytes) {
+ /* Continue iterating to get the required size */
+ overflow = true;
+ continue;
+ }
+
+ memset(tmp, 0, sizeof(*tmp));
+ tmp->pid = tmp_client->pid;
+ tmp->context_id = hwctx->id;
+ tmp->start_col = hwctx->start_col;
+ tmp->num_col = hwctx->num_col;
+ tmp->command_submissions = hwctx->priv->seq;
+ tmp->command_completions = hwctx->priv->completed;
+
+ if (copy_to_user(&buf[hw_i], tmp, sizeof(*tmp))) {
+ ret = -EFAULT;
+ srcu_read_unlock(&tmp_client->hwctx_srcu, idx);
+ goto out;
+ }
+ hw_i++;
+ }
+ srcu_read_unlock(&tmp_client->hwctx_srcu, idx);
+ }
+
+ if (overflow) {
+ XDNA_ERR(xdna, "Invalid buffer size. Given: %u Need: %u.",
+ args->buffer_size, req_bytes);
+ ret = -EINVAL;
+ }
+
+out:
+ kfree(tmp);
+ args->buffer_size = req_bytes;
+ return ret;
+}
+
+static int aie2_get_info(struct amdxdna_client *client, struct amdxdna_drm_get_info *args)
+{
+ struct amdxdna_dev *xdna = client->xdna;
+ int ret, idx;
+
+ if (!drm_dev_enter(&xdna->ddev, &idx))
+ return -ENODEV;
+
+ switch (args->param) {
+ case DRM_AMDXDNA_QUERY_AIE_STATUS:
+ ret = aie2_get_aie_status(client, args);
+ break;
+ case DRM_AMDXDNA_QUERY_AIE_METADATA:
+ ret = aie2_get_aie_metadata(client, args);
+ break;
+ case DRM_AMDXDNA_QUERY_AIE_VERSION:
+ ret = aie2_get_aie_version(client, args);
+ break;
+ case DRM_AMDXDNA_QUERY_CLOCK_METADATA:
+ ret = aie2_get_clock_metadata(client, args);
+ break;
+ case DRM_AMDXDNA_QUERY_HW_CONTEXTS:
+ ret = aie2_get_hwctx_status(client, args);
+ break;
+ default:
+ XDNA_ERR(xdna, "Not supported request parameter %u", args->param);
+ ret = -EOPNOTSUPP;
+ }
+ XDNA_DBG(xdna, "Got param %d", args->param);
+
+ drm_dev_exit(idx);
+ return ret;
+}
+
const struct amdxdna_dev_ops aie2_ops = {
.init = aie2_init,
.fini = aie2_fini,
.resume = aie2_hw_start,
.suspend = aie2_hw_stop,
+ .get_aie_info = aie2_get_info,
.hwctx_init = aie2_hwctx_init,
.hwctx_fini = aie2_hwctx_fini,
.hwctx_config = aie2_hwctx_config,
diff --git a/drivers/accel/amdxdna/aie2_pci.h b/drivers/accel/amdxdna/aie2_pci.h
index 9634a7588650..734499bfb9f7 100644
--- a/drivers/accel/amdxdna/aie2_pci.h
+++ b/drivers/accel/amdxdna/aie2_pci.h
@@ -225,6 +225,7 @@ int aie2_query_firmware_version(struct amdxdna_dev_hdl *ndev,
int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwctx);
int aie2_destroy_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwctx);
int aie2_map_host_buf(struct amdxdna_dev_hdl *ndev, u32 context_id, u64 addr, u64 size);
+int aie2_query_status(struct amdxdna_dev_hdl *ndev, char *buf, u32 size, u32 *cols_filled);
int aie2_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size,
void *handle, int (*cb)(void*, const u32 *, size_t));
int aie2_config_cu(struct amdxdna_hwctx *hwctx);
diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c
index 92113d83e861..b8cb666e18c2 100644
--- a/drivers/accel/amdxdna/amdxdna_pci_drv.c
+++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c
@@ -143,6 +143,23 @@ static int amdxdna_flush(struct file *f, fl_owner_t id)
return 0;
}
+static int amdxdna_drm_get_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
+{
+ struct amdxdna_client *client = filp->driver_priv;
+ struct amdxdna_dev *xdna = to_xdna_dev(dev);
+ struct amdxdna_drm_get_info *args = data;
+ int ret;
+
+ if (!xdna->dev_info->ops->get_aie_info)
+ return -EOPNOTSUPP;
+
+ XDNA_DBG(xdna, "Request parameter %u", args->param);
+ mutex_lock(&xdna->dev_lock);
+ ret = xdna->dev_info->ops->get_aie_info(client, args);
+ mutex_unlock(&xdna->dev_lock);
+ return ret;
+}
+
static const struct drm_ioctl_desc amdxdna_drm_ioctls[] = {
/* Context */
DRM_IOCTL_DEF_DRV(AMDXDNA_CREATE_HWCTX, amdxdna_drm_create_hwctx_ioctl, 0),
@@ -155,6 +172,8 @@ static const struct drm_ioctl_desc amdxdna_drm_ioctls[] = {
/* Exectuion */
DRM_IOCTL_DEF_DRV(AMDXDNA_EXEC_CMD, amdxdna_drm_submit_cmd_ioctl, 0),
DRM_IOCTL_DEF_DRV(AMDXDNA_WAIT_CMD, amdxdna_drm_wait_cmd_ioctl, 0),
+ /* AIE hardware */
+ DRM_IOCTL_DEF_DRV(AMDXDNA_GET_INFO, amdxdna_drm_get_info_ioctl, 0),
};
static const struct file_operations amdxdna_fops = {
diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.h b/drivers/accel/amdxdna/amdxdna_pci_drv.h
index 01b516743a00..0e1f566f8ca8 100644
--- a/drivers/accel/amdxdna/amdxdna_pci_drv.h
+++ b/drivers/accel/amdxdna/amdxdna_pci_drv.h
@@ -17,7 +17,9 @@
extern const struct drm_driver amdxdna_drm_drv;
+struct amdxdna_client;
struct amdxdna_dev;
+struct amdxdna_drm_get_info;
struct amdxdna_gem_obj;
struct amdxdna_hwctx;
struct amdxdna_sched_job;
@@ -38,6 +40,7 @@ struct amdxdna_dev_ops {
void (*hwctx_resume)(struct amdxdna_hwctx *hwctx);
int (*cmd_submit)(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job, u64 *seq);
int (*cmd_wait)(struct amdxdna_hwctx *hwctx, u64 seq, u32 timeout);
+ int (*get_aie_info)(struct amdxdna_client *client, struct amdxdna_drm_get_info *args);
};
/*
diff --git a/include/uapi/drm/amdxdna_accel.h b/include/uapi/drm/amdxdna_accel.h
index 08f3ec7146ab..a7e23c6de3da 100644
--- a/include/uapi/drm/amdxdna_accel.h
+++ b/include/uapi/drm/amdxdna_accel.h
@@ -32,6 +32,7 @@ enum amdxdna_drm_ioctl_id {
DRM_AMDXDNA_SYNC_BO,
DRM_AMDXDNA_EXEC_CMD,
DRM_AMDXDNA_WAIT_CMD,
+ DRM_AMDXDNA_GET_INFO,
};
/**
@@ -252,6 +253,167 @@ struct amdxdna_drm_wait_cmd {
__u64 seq;
};
+/**
+ * struct amdxdna_drm_query_aie_status - Query the status of the AIE hardware
+ * @buffer: The user space buffer that will return the AIE status.
+ * @buffer_size: The size of the user space buffer.
+ * @cols_filled: A bitmap of AIE columns whose data has been returned in the buffer.
+ */
+struct amdxdna_drm_query_aie_status {
+ __u64 buffer; /* out */
+ __u32 buffer_size; /* in */
+ __u32 cols_filled; /* out */
+};
+
+/**
+ * struct amdxdna_drm_query_aie_version - Query the version of the AIE hardware
+ * @major: The major version number.
+ * @minor: The minor version number.
+ */
+struct amdxdna_drm_query_aie_version {
+ __u32 major; /* out */
+ __u32 minor; /* out */
+};
+
+/**
+ * struct amdxdna_drm_query_aie_tile_metadata - Query the metadata of AIE tile (core, mem, shim)
+ * @row_count: The number of rows.
+ * @row_start: The starting row number.
+ * @dma_channel_count: The number of dma channels.
+ * @lock_count: The number of locks.
+ * @event_reg_count: The number of events.
+ * @pad: Structure padding.
+ */
+struct amdxdna_drm_query_aie_tile_metadata {
+ __u16 row_count;
+ __u16 row_start;
+ __u16 dma_channel_count;
+ __u16 lock_count;
+ __u16 event_reg_count;
+ __u16 pad[3];
+};
+
+/**
+ * struct amdxdna_drm_query_aie_metadata - Query the metadata of the AIE hardware
+ * @col_size: The size of a column in bytes.
+ * @cols: The total number of columns.
+ * @rows: The total number of rows.
+ * @version: The version of the AIE hardware.
+ * @core: The metadata for all core tiles.
+ * @mem: The metadata for all mem tiles.
+ * @shim: The metadata for all shim tiles.
+ */
+struct amdxdna_drm_query_aie_metadata {
+ __u32 col_size;
+ __u16 cols;
+ __u16 rows;
+ struct amdxdna_drm_query_aie_version version;
+ struct amdxdna_drm_query_aie_tile_metadata core;
+ struct amdxdna_drm_query_aie_tile_metadata mem;
+ struct amdxdna_drm_query_aie_tile_metadata shim;
+};
+
+/**
+ * struct amdxdna_drm_query_clock - Metadata for a clock
+ * @name: The clock name.
+ * @freq_mhz: The clock frequency.
+ * @pad: Structure padding.
+ */
+struct amdxdna_drm_query_clock {
+ __u8 name[16];
+ __u32 freq_mhz;
+ __u32 pad;
+};
+
+/**
+ * struct amdxdna_drm_query_clock_metadata - Query metadata for clocks
+ * @mp_npu_clock: The metadata for MP-NPU clock.
+ * @h_clock: The metadata for H clock.
+ */
+struct amdxdna_drm_query_clock_metadata {
+ struct amdxdna_drm_query_clock mp_npu_clock;
+ struct amdxdna_drm_query_clock h_clock;
+};
+
+enum amdxdna_sensor_type {
+ AMDXDNA_SENSOR_TYPE_POWER
+};
+
+/**
+ * struct amdxdna_drm_query_sensor - The data for single sensor.
+ * @label: The name for a sensor.
+ * @input: The current value of the sensor.
+ * @max: The maximum value possible for the sensor.
+ * @average: The average value of the sensor.
+ * @highest: The highest recorded sensor value for this driver load for the sensor.
+ * @status: The sensor status.
+ * @units: The sensor units.
+ * @unitm: Translates value member variables into the correct unit via (pow(10, unitm) * value).
+ * @type: The sensor type from enum amdxdna_sensor_type.
+ * @pad: Structure padding.
+ */
+struct amdxdna_drm_query_sensor {
+ __u8 label[64];
+ __u32 input;
+ __u32 max;
+ __u32 average;
+ __u32 highest;
+ __u8 status[64];
+ __u8 units[16];
+ __s8 unitm;
+ __u8 type;
+ __u8 pad[6];
+};
+
+/**
+ * struct amdxdna_drm_query_hwctx - The data for single context.
+ * @context_id: The ID for this context.
+ * @start_col: The starting column for the partition assigned to this context.
+ * @num_col: The number of columns in the partition assigned to this context.
+ * @pad: Structure padding.
+ * @pid: The Process ID of the process that created this context.
+ * @command_submissions: The number of commands submitted to this context.
+ * @command_completions: The number of commands completed by this context.
+ * @migrations: The number of times this context has been moved to a different partition.
+ * @preemptions: The number of times this context has been preempted by another context in the
+ * same partition.
+ * @errors: The errors for this context.
+ */
+struct amdxdna_drm_query_hwctx {
+ __u32 context_id;
+ __u32 start_col;
+ __u32 num_col;
+ __u32 pad;
+ __s64 pid;
+ __u64 command_submissions;
+ __u64 command_completions;
+ __u64 migrations;
+ __u64 preemptions;
+ __u64 errors;
+};
+
+enum amdxdna_drm_get_param {
+ DRM_AMDXDNA_QUERY_AIE_STATUS,
+ DRM_AMDXDNA_QUERY_AIE_METADATA,
+ DRM_AMDXDNA_QUERY_AIE_VERSION,
+ DRM_AMDXDNA_QUERY_CLOCK_METADATA,
+ DRM_AMDXDNA_QUERY_SENSORS,
+ DRM_AMDXDNA_QUERY_HW_CONTEXTS,
+ DRM_AMDXDNA_NUM_GET_PARAM,
+};
+
+/**
+ * struct amdxdna_drm_get_info - Get some information from the AIE hardware.
+ * @param: Value in enum amdxdna_drm_get_param. Specifies the structure passed in the buffer.
+ * @buffer_size: Size of the input buffer. Size needed/written by the kernel.
+ * @buffer: A structure specified by the param struct member.
+ */
+struct amdxdna_drm_get_info {
+ __u32 param; /* in */
+ __u32 buffer_size; /* in/out */
+ __u64 buffer; /* in/out */
+};
+
#define DRM_IOCTL_AMDXDNA_CREATE_HWCTX \
DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDXDNA_CREATE_HWCTX, \
struct amdxdna_drm_create_hwctx)
@@ -284,6 +446,10 @@ struct amdxdna_drm_wait_cmd {
DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDXDNA_WAIT_CMD, \
struct amdxdna_drm_wait_cmd)
+#define DRM_IOCTL_AMDXDNA_GET_INFO \
+ DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDXDNA_GET_INFO, \
+ struct amdxdna_drm_get_info)
+
#if defined(__cplusplus)
} /* extern c end */
#endif
--
2.34.1