Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
accel/amdxdna: Enable hardware context priority
Newer firmware supports hardware context priority. Set the priority based
on application input.
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20251217171719.2139025-1-lizhi.hou@amd.com
+35
-1
+22
-1
drivers/accel/amdxdna/aie2_message.c
+22
-1
drivers/accel/amdxdna/aie2_message.c
···
205
205
206
206
return ret;
207
207
}
208
+
209
+
static u32 aie2_get_context_priority(struct amdxdna_dev_hdl *ndev,
210
+
struct amdxdna_hwctx *hwctx)
211
+
{
212
+
if (!AIE2_FEATURE_ON(ndev, AIE2_PREEMPT))
213
+
return PRIORITY_HIGH;
214
+
215
+
switch (hwctx->qos.priority) {
216
+
case AMDXDNA_QOS_REALTIME_PRIORITY:
217
+
return PRIORITY_REALTIME;
218
+
case AMDXDNA_QOS_HIGH_PRIORITY:
219
+
return PRIORITY_HIGH;
220
+
case AMDXDNA_QOS_NORMAL_PRIORITY:
221
+
return PRIORITY_NORMAL;
222
+
case AMDXDNA_QOS_LOW_PRIORITY:
223
+
return PRIORITY_LOW;
224
+
default:
225
+
return PRIORITY_HIGH;
226
+
}
227
+
}
228
+
208
229
int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwctx)
209
230
{
210
231
DECLARE_AIE2_MSG(create_ctx, MSG_OP_CREATE_CONTEXT);
···
242
221
req.num_unused_col = hwctx->num_unused_col;
243
222
req.num_cq_pairs_requested = 1;
244
223
req.pasid = hwctx->client->pasid;
245
-
req.context_priority = 2;
224
+
req.context_priority = aie2_get_context_priority(ndev, hwctx);
246
225
247
226
ret = aie2_send_mgmt_msg_wait(ndev, &msg);
248
227
if (ret)
+5
drivers/accel/amdxdna/aie2_msg_priv.h
+5
drivers/accel/amdxdna/aie2_msg_priv.h
+8
include/uapi/drm/amdxdna_accel.h
+8
include/uapi/drm/amdxdna_accel.h
···
19
19
#define AMDXDNA_INVALID_BO_HANDLE 0
20
20
#define AMDXDNA_INVALID_FENCE_HANDLE 0
21
21
22
+
/*
23
+
* Define hardware context priority
24
+
*/
25
+
#define AMDXDNA_QOS_REALTIME_PRIORITY 0x100
26
+
#define AMDXDNA_QOS_HIGH_PRIORITY 0x180
27
+
#define AMDXDNA_QOS_NORMAL_PRIORITY 0x200
28
+
#define AMDXDNA_QOS_LOW_PRIORITY 0x280
29
+
22
30
enum amdxdna_device_type {
23
31
AMDXDNA_DEV_TYPE_UNKNOWN = -1,
24
32
AMDXDNA_DEV_TYPE_KMQ,