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accel/amdxdna: Init AIE4 device partition

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Send partition creation command to firmware during VF initialization.

Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260505160936.3917732-3-lizhi.hou@amd.com
This commit is contained in:
David Zhang 2026-05-05 09:09:32 -07:00 committed by Lizhi Hou
parent 7b1a245b18
commit ce9414d0c0
3 changed files with 73 additions and 1 deletions
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21
drivers/accel/amdxdna/aie4_msg_priv.h
View File

@ -13,6 +13,9 @@ enum aie4_msg_opcode {
AIE4_MSG_OP_CREATE_VFS = 0x20001,
AIE4_MSG_OP_DESTROY_VFS = 0x20002,
AIE4_MSG_OP_CREATE_PARTITION = 0x30001,
AIE4_MSG_OP_DESTROY_PARTITION = 0x30002,
};
enum aie4_msg_status {
@ -46,4 +49,22 @@ struct aie4_msg_destroy_vfs_resp {
enum aie4_msg_status status;
} __packed;
struct aie4_msg_create_partition_req {
__u32 partition_col_start;
__u32 partition_col_count;
} __packed;
struct aie4_msg_create_partition_resp {
enum aie4_msg_status status;
__u32 partition_id;
} __packed;
struct aie4_msg_destroy_partition_req {
__u32 partition_id;
} __packed;
struct aie4_msg_destroy_partition_resp {
enum aie4_msg_status status;
} __packed;
#endif /* _AIE4_MSG_PRIV_H_ */

52
drivers/accel/amdxdna/aie4_pci.c
View File

@ -9,11 +9,16 @@
#include <linux/firmware.h>
#include <linux/sizes.h>
#include "aie.h"
#include "aie4_msg_priv.h"
#include "aie4_pci.h"
#include "amdxdna_mailbox.h"
#include "amdxdna_mailbox_helper.h"
#include "amdxdna_pci_drv.h"
#define NO_IOHUB 0
#define PSP_NOTIFY_INTR 0xD007BE11
#define AIE4_TOTAL_COLUMN 3
/*
* The management mailbox channel is allocated by firmware.
@ -234,6 +239,36 @@ static int aie4_fw_start(struct amdxdna_dev_hdl *ndev)
return ret;
}
static int aie4_partition_init(struct amdxdna_dev_hdl *ndev)
{
DECLARE_AIE_MSG(aie4_msg_create_partition, AIE4_MSG_OP_CREATE_PARTITION);
struct amdxdna_dev *xdna = ndev->aie.xdna;
int ret;
req.partition_col_start = 0;
req.partition_col_count = AIE4_TOTAL_COLUMN;
ret = aie_send_mgmt_msg_wait(&ndev->aie, &msg);
if (ret) {
XDNA_ERR(xdna, "partition init failed: %d", ret);
return ret;
}
ndev->partition_id = resp.partition_id;
return 0;
}
static void aie4_partition_fini(struct amdxdna_dev_hdl *ndev)
{
DECLARE_AIE_MSG(aie4_msg_destroy_partition, AIE4_MSG_OP_DESTROY_PARTITION);
struct amdxdna_dev *xdna = ndev->aie.xdna;
int ret;
req.partition_id = ndev->partition_id;
ret = aie_send_mgmt_msg_wait(&ndev->aie, &msg);
if (ret)
XDNA_ERR(xdna, "partition fini failed: %d", ret);
}
static int aie4_pf_hw_start(struct amdxdna_dev_hdl *ndev)
{
int ret;
@ -267,7 +302,21 @@ static void aie4_pf_hw_stop(struct amdxdna_dev_hdl *ndev)
static int aie4_vf_hw_start(struct amdxdna_dev_hdl *ndev)
{
return aie4_mailbox_init(ndev);
int ret;
ret = aie4_mailbox_init(ndev);
if (ret)
return ret;
ret = aie4_partition_init(ndev);
if (ret)
goto mailbox_fini;
return 0;
mailbox_fini:
aie4_mailbox_fini(ndev);
return ret;
}
static void aie4_vf_hw_stop(struct amdxdna_dev_hdl *ndev)
@ -276,6 +325,7 @@ static void aie4_vf_hw_stop(struct amdxdna_dev_hdl *ndev)
drm_WARN_ON(&xdna->ddev, !mutex_is_locked(&xdna->dev_lock));
aie4_partition_fini(ndev);
aie4_mailbox_fini(ndev);
}

1
drivers/accel/amdxdna/aie4_pci.h
View File

@ -31,6 +31,7 @@ struct amdxdna_dev_hdl {
void __iomem *rbuf_base;
struct mailbox *mbox;
u32 partition_id;
};
/* aie4_message.c */