On 9/11/2024 12:05 PM, Lizhi Hou wrote:
diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c
new file mode 100644
index 000000000000..e21b32557fc2
--- /dev/null
+++ b/drivers/accel/amdxdna/aie2_pci.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023-2024, Advanced Micro Devices, Inc.
+ */
+
+#include <drm/drm_device.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_print.h>
+#include <linux/errno.h>
+#include <linux/firmware.h>
+#include <linux/iommu.h>
+#include <linux/pci.h>
+
+#include "amdxdna_pci_drv.h"
+#include "aie2_pci.h"
Feels like a blank line is missing here.
+static void aie2_hw_stop(struct amdxdna_dev *xdna)
+{
+ struct pci_dev *pdev = to_pci_dev(xdna->ddev.dev);
+ struct amdxdna_dev_hdl *ndev = xdna->dev_handle;
+
+ aie2_psp_stop(ndev->psp_hdl);
+ aie2_smu_fini(ndev);
+ pci_disable_device(pdev);
+}
diff --git a/drivers/accel/amdxdna/aie2_pci.h b/drivers/accel/amdxdna/aie2_pci.h
new file mode 100644
index 000000000000..b3c360a10c04
--- /dev/null
+++ b/drivers/accel/amdxdna/aie2_pci.h
@@ -0,0 +1,130 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2023-2024, Advanced Micro Devices, Inc.
+ */
+
+#ifndef _AIE2_PCI_H_
+#define _AIE2_PCI_H_
+
+#define AIE2_INTERVAL 20000 /* us */
+#define AIE2_TIMEOUT 1000000 /* us */
+
+/* Firmware determines device memory base address and size */
+#define AIE2_DEVM_BASE 0x4000000
+#define AIE2_DEVM_SIZE (64 * SZ_1M)
SZ_64M? Then the code, and reader's brains, are not doing multiplication.
diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c
new file mode 100644
index 000000000000..33133f2503cd
--- /dev/null
+++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022-2024, Advanced Micro Devices, Inc.
+ */
+
+#include <drm/drm_accel.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_ioctl.h>
+#include <drm/drm_managed.h>
+#include <linux/pci.h>
+
+#include "amdxdna_pci_drv.h"
+
+/*
+ * Bind the driver base on PCI class and later use the (device_id, rev_id)
+ * pair as a key to select the devices. The devices with same device_id
+ * have very similar interface to host driver.
+ */
Looks like this comment didn't get updated when the class matching was
removed.
+static const struct pci_device_id pci_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1502) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x17f0) },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(pci, pci_ids);
