Commit 33207079 authored by Lizhi Hou's avatar Lizhi Hou
Browse files

accel/amdxdna: Enable hardware context priority 



Newer firmware supports hardware context priority. Set the priority based
on application input.

Reviewed-by: default avatarMario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: default avatarLizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20251217171719.2139025-1-lizhi.hou@amd.com
parent 7818618a

drivers/accel/amdxdna/aie2_message.c

+22 −1
Original line number Diff line number Diff line
@@ -205,6 +205,27 @@ static int aie2_destroy_context_req(struct amdxdna_dev_hdl *ndev, u32 id) 


	return ret;

}



static u32 aie2_get_context_priority(struct amdxdna_dev_hdl *ndev,

				     struct amdxdna_hwctx *hwctx)

{

	if (!AIE2_FEATURE_ON(ndev, AIE2_PREEMPT))

		return PRIORITY_HIGH;



	switch (hwctx->qos.priority) {

	case AMDXDNA_QOS_REALTIME_PRIORITY:

		return PRIORITY_REALTIME;

	case AMDXDNA_QOS_HIGH_PRIORITY:

		return PRIORITY_HIGH;

	case AMDXDNA_QOS_NORMAL_PRIORITY:

		return PRIORITY_NORMAL;

	case AMDXDNA_QOS_LOW_PRIORITY:

		return PRIORITY_LOW;

	default:

		return PRIORITY_HIGH;

	}

}



int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwctx)

{

	DECLARE_AIE2_MSG(create_ctx, MSG_OP_CREATE_CONTEXT);
@@ -221,7 +242,7 @@ int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwct 
	req.num_unused_col = hwctx->num_unused_col;

	req.num_cq_pairs_requested = 1;

	req.pasid = hwctx->client->pasid;

	req.context_priority = 2;

	req.context_priority = aie2_get_context_priority(ndev, hwctx);



	ret = aie2_send_mgmt_msg_wait(ndev, &msg);

	if (ret)

drivers/accel/amdxdna/aie2_msg_priv.h

+5 −0
Original line number Diff line number Diff line
@@ -108,6 +108,11 @@ struct cq_pair { 
	struct cq_info i2x_q;

};



#define PRIORITY_REALTIME	1

#define PRIORITY_HIGH		2

#define PRIORITY_NORMAL		3

#define PRIORITY_LOW		4



struct create_ctx_req {

	__u32	aie_type;

	__u8	start_col;

include/uapi/drm/amdxdna_accel.h

+8 −0
Original line number Diff line number Diff line
@@ -19,6 +19,14 @@ extern "C" { 
#define AMDXDNA_INVALID_BO_HANDLE	0

#define AMDXDNA_INVALID_FENCE_HANDLE	0



/*

 * Define hardware context priority

 */

#define AMDXDNA_QOS_REALTIME_PRIORITY	0x100

#define AMDXDNA_QOS_HIGH_PRIORITY	0x180

#define AMDXDNA_QOS_NORMAL_PRIORITY	0x200

#define AMDXDNA_QOS_LOW_PRIORITY	0x280



enum amdxdna_device_type {

	AMDXDNA_DEV_TYPE_UNKNOWN = -1,

	AMDXDNA_DEV_TYPE_KMQ,