363 lines
14 KiB
C
363 lines
14 KiB
C
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// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
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/* Copyright(c) 2014 - 2020 Intel Corporation */
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#include <linux/types.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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#include <linux/iopoll.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include "adf_accel_devices.h"
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#include "adf_common_drv.h"
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#include "icp_qat_fw_init_admin.h"
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#define ADF_ADMIN_MAILBOX_STRIDE 0x1000
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#define ADF_ADMINMSG_LEN 32
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#define ADF_CONST_TABLE_SIZE 1024
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#define ADF_ADMIN_POLL_DELAY_US 20
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#define ADF_ADMIN_POLL_TIMEOUT_US (5 * USEC_PER_SEC)
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static const u8 const_tab[1024] __aligned(1024) = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x03, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x02, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13,
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0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76,
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0x54, 0x32, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x67, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab,
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0x89, 0x98, 0xba, 0xdc, 0xfe, 0x10, 0x32, 0x54, 0x76, 0xc3, 0xd2, 0xe1, 0xf0,
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0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc1, 0x05, 0x9e,
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0xd8, 0x36, 0x7c, 0xd5, 0x07, 0x30, 0x70, 0xdd, 0x17, 0xf7, 0x0e, 0x59, 0x39,
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0xff, 0xc0, 0x0b, 0x31, 0x68, 0x58, 0x15, 0x11, 0x64, 0xf9, 0x8f, 0xa7, 0xbe,
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0xfa, 0x4f, 0xa4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xbb, 0x67, 0xae,
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0x85, 0x3c, 0x6e, 0xf3, 0x72, 0xa5, 0x4f, 0xf5, 0x3a, 0x51, 0x0e, 0x52, 0x7f,
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0x9b, 0x05, 0x68, 0x8c, 0x1f, 0x83, 0xd9, 0xab, 0x5b, 0xe0, 0xcd, 0x19, 0x05,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xcb, 0xbb, 0x9d, 0x5d, 0xc1, 0x05, 0x9e, 0xd8, 0x62, 0x9a, 0x29,
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0x2a, 0x36, 0x7c, 0xd5, 0x07, 0x91, 0x59, 0x01, 0x5a, 0x30, 0x70, 0xdd, 0x17,
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0x15, 0x2f, 0xec, 0xd8, 0xf7, 0x0e, 0x59, 0x39, 0x67, 0x33, 0x26, 0x67, 0xff,
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0xc0, 0x0b, 0x31, 0x8e, 0xb4, 0x4a, 0x87, 0x68, 0x58, 0x15, 0x11, 0xdb, 0x0c,
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0x2e, 0x0d, 0x64, 0xf9, 0x8f, 0xa7, 0x47, 0xb5, 0x48, 0x1d, 0xbe, 0xfa, 0x4f,
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0xa4, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xf3, 0xbc, 0xc9, 0x08, 0xbb,
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0x67, 0xae, 0x85, 0x84, 0xca, 0xa7, 0x3b, 0x3c, 0x6e, 0xf3, 0x72, 0xfe, 0x94,
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0xf8, 0x2b, 0xa5, 0x4f, 0xf5, 0x3a, 0x5f, 0x1d, 0x36, 0xf1, 0x51, 0x0e, 0x52,
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0x7f, 0xad, 0xe6, 0x82, 0xd1, 0x9b, 0x05, 0x68, 0x8c, 0x2b, 0x3e, 0x6c, 0x1f,
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0x1f, 0x83, 0xd9, 0xab, 0xfb, 0x41, 0xbd, 0x6b, 0x5b, 0xe0, 0xcd, 0x19, 0x13,
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0x7e, 0x21, 0x79, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x18,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x01, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x15, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x02, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x14, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x02,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x25, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x24, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x25,
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0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x12, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x43, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x43, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45, 0x01, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x2B, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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struct adf_admin_comms {
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dma_addr_t phy_addr;
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dma_addr_t const_tbl_addr;
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void *virt_addr;
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void *virt_tbl_addr;
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void __iomem *mailbox_addr;
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struct mutex lock; /* protects adf_admin_comms struct */
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};
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static int adf_put_admin_msg_sync(struct adf_accel_dev *accel_dev, u32 ae,
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void *in, void *out)
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{
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int ret;
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u32 status;
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struct adf_admin_comms *admin = accel_dev->admin;
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int offset = ae * ADF_ADMINMSG_LEN * 2;
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void __iomem *mailbox = admin->mailbox_addr;
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int mb_offset = ae * ADF_ADMIN_MAILBOX_STRIDE;
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struct icp_qat_fw_init_admin_req *request = in;
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mutex_lock(&admin->lock);
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if (ADF_CSR_RD(mailbox, mb_offset) == 1) {
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mutex_unlock(&admin->lock);
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return -EAGAIN;
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}
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memcpy(admin->virt_addr + offset, in, ADF_ADMINMSG_LEN);
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ADF_CSR_WR(mailbox, mb_offset, 1);
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ret = read_poll_timeout(ADF_CSR_RD, status, status == 0,
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ADF_ADMIN_POLL_DELAY_US,
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ADF_ADMIN_POLL_TIMEOUT_US, true,
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mailbox, mb_offset);
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if (ret < 0) {
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/* Response timeout */
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dev_err(&GET_DEV(accel_dev),
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"Failed to send admin msg %d to accelerator %d\n",
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request->cmd_id, ae);
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} else {
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/* Response received from admin message, we can now
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* make response data available in "out" parameter.
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*/
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memcpy(out, admin->virt_addr + offset +
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ADF_ADMINMSG_LEN, ADF_ADMINMSG_LEN);
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}
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mutex_unlock(&admin->lock);
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return ret;
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}
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static int adf_send_admin(struct adf_accel_dev *accel_dev,
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struct icp_qat_fw_init_admin_req *req,
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struct icp_qat_fw_init_admin_resp *resp,
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const unsigned long ae_mask)
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{
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u32 ae;
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for_each_set_bit(ae, &ae_mask, ICP_QAT_HW_AE_DELIMITER)
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if (adf_put_admin_msg_sync(accel_dev, ae, req, resp) ||
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resp->status)
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return -EFAULT;
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return 0;
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}
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static int adf_init_ae(struct adf_accel_dev *accel_dev)
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{
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struct icp_qat_fw_init_admin_req req;
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struct icp_qat_fw_init_admin_resp resp;
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struct adf_hw_device_data *hw_device = accel_dev->hw_device;
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u32 ae_mask = hw_device->ae_mask;
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memset(&req, 0, sizeof(req));
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memset(&resp, 0, sizeof(resp));
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req.cmd_id = ICP_QAT_FW_INIT_AE;
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return adf_send_admin(accel_dev, &req, &resp, ae_mask);
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}
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static int adf_set_fw_constants(struct adf_accel_dev *accel_dev)
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{
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struct icp_qat_fw_init_admin_req req;
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struct icp_qat_fw_init_admin_resp resp;
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struct adf_hw_device_data *hw_device = accel_dev->hw_device;
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u32 ae_mask = hw_device->admin_ae_mask ?: hw_device->ae_mask;
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memset(&req, 0, sizeof(req));
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memset(&resp, 0, sizeof(resp));
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req.cmd_id = ICP_QAT_FW_CONSTANTS_CFG;
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req.init_cfg_sz = ADF_CONST_TABLE_SIZE;
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req.init_cfg_ptr = accel_dev->admin->const_tbl_addr;
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return adf_send_admin(accel_dev, &req, &resp, ae_mask);
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}
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static int adf_get_dc_capabilities(struct adf_accel_dev *accel_dev,
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u32 *capabilities)
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{
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struct adf_hw_device_data *hw_device = accel_dev->hw_device;
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|
|
struct icp_qat_fw_init_admin_resp resp;
|
||
|
|
struct icp_qat_fw_init_admin_req req;
|
||
|
|
unsigned long ae_mask;
|
||
|
|
unsigned long ae;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
/* Target only service accelerator engines */
|
||
|
|
ae_mask = hw_device->ae_mask & ~hw_device->admin_ae_mask;
|
||
|
|
|
||
|
|
memset(&req, 0, sizeof(req));
|
||
|
|
memset(&resp, 0, sizeof(resp));
|
||
|
|
req.cmd_id = ICP_QAT_FW_COMP_CAPABILITY_GET;
|
||
|
|
|
||
|
|
*capabilities = 0;
|
||
|
|
for_each_set_bit(ae, &ae_mask, GET_MAX_ACCELENGINES(accel_dev)) {
|
||
|
|
ret = adf_send_admin(accel_dev, &req, &resp, 1ULL << ae);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
*capabilities |= resp.extended_features;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* adf_send_admin_init() - Function sends init message to FW
|
||
|
|
* @accel_dev: Pointer to acceleration device.
|
||
|
|
*
|
||
|
|
* Function sends admin init message to the FW
|
||
|
|
*
|
||
|
|
* Return: 0 on success, error code otherwise.
|
||
|
|
*/
|
||
|
|
int adf_send_admin_init(struct adf_accel_dev *accel_dev)
|
||
|
|
{
|
||
|
|
u32 dc_capabilities = 0;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = adf_get_dc_capabilities(accel_dev, &dc_capabilities);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(&GET_DEV(accel_dev), "Cannot get dc capabilities\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
accel_dev->hw_device->extended_dc_capabilities = dc_capabilities;
|
||
|
|
|
||
|
|
ret = adf_set_fw_constants(accel_dev);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
return adf_init_ae(accel_dev);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(adf_send_admin_init);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* adf_init_admin_pm() - Function sends PM init message to FW
|
||
|
|
* @accel_dev: Pointer to acceleration device.
|
||
|
|
* @idle_delay: QAT HW idle time before power gating is initiated.
|
||
|
|
* 000 - 64us
|
||
|
|
* 001 - 128us
|
||
|
|
* 010 - 256us
|
||
|
|
* 011 - 512us
|
||
|
|
* 100 - 1ms
|
||
|
|
* 101 - 2ms
|
||
|
|
* 110 - 4ms
|
||
|
|
* 111 - 8ms
|
||
|
|
*
|
||
|
|
* Function sends to the FW the admin init message for the PM state
|
||
|
|
* configuration.
|
||
|
|
*
|
||
|
|
* Return: 0 on success, error code otherwise.
|
||
|
|
*/
|
||
|
|
int adf_init_admin_pm(struct adf_accel_dev *accel_dev, u32 idle_delay)
|
||
|
|
{
|
||
|
|
struct adf_hw_device_data *hw_data = accel_dev->hw_device;
|
||
|
|
struct icp_qat_fw_init_admin_resp resp = {0};
|
||
|
|
struct icp_qat_fw_init_admin_req req = {0};
|
||
|
|
u32 ae_mask = hw_data->admin_ae_mask;
|
||
|
|
|
||
|
|
if (!accel_dev->admin) {
|
||
|
|
dev_err(&GET_DEV(accel_dev), "adf_admin is not available\n");
|
||
|
|
return -EFAULT;
|
||
|
|
}
|
||
|
|
|
||
|
|
req.cmd_id = ICP_QAT_FW_PM_STATE_CONFIG;
|
||
|
|
req.idle_filter = idle_delay;
|
||
|
|
|
||
|
|
return adf_send_admin(accel_dev, &req, &resp, ae_mask);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(adf_init_admin_pm);
|
||
|
|
|
||
|
|
int adf_init_admin_comms(struct adf_accel_dev *accel_dev)
|
||
|
|
{
|
||
|
|
struct adf_admin_comms *admin;
|
||
|
|
struct adf_hw_device_data *hw_data = accel_dev->hw_device;
|
||
|
|
void __iomem *pmisc_addr = adf_get_pmisc_base(accel_dev);
|
||
|
|
struct admin_info admin_csrs_info;
|
||
|
|
u32 mailbox_offset, adminmsg_u, adminmsg_l;
|
||
|
|
void __iomem *mailbox;
|
||
|
|
u64 reg_val;
|
||
|
|
|
||
|
|
admin = kzalloc_node(sizeof(*accel_dev->admin), GFP_KERNEL,
|
||
|
|
dev_to_node(&GET_DEV(accel_dev)));
|
||
|
|
if (!admin)
|
||
|
|
return -ENOMEM;
|
||
|
|
admin->virt_addr = dma_alloc_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
|
||
|
|
&admin->phy_addr, GFP_KERNEL);
|
||
|
|
if (!admin->virt_addr) {
|
||
|
|
dev_err(&GET_DEV(accel_dev), "Failed to allocate dma buff\n");
|
||
|
|
kfree(admin);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
admin->virt_tbl_addr = dma_alloc_coherent(&GET_DEV(accel_dev),
|
||
|
|
PAGE_SIZE,
|
||
|
|
&admin->const_tbl_addr,
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (!admin->virt_tbl_addr) {
|
||
|
|
dev_err(&GET_DEV(accel_dev), "Failed to allocate const_tbl\n");
|
||
|
|
dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
|
||
|
|
admin->virt_addr, admin->phy_addr);
|
||
|
|
kfree(admin);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
memcpy(admin->virt_tbl_addr, const_tab, sizeof(const_tab));
|
||
|
|
hw_data->get_admin_info(&admin_csrs_info);
|
||
|
|
|
||
|
|
mailbox_offset = admin_csrs_info.mailbox_offset;
|
||
|
|
mailbox = pmisc_addr + mailbox_offset;
|
||
|
|
adminmsg_u = admin_csrs_info.admin_msg_ur;
|
||
|
|
adminmsg_l = admin_csrs_info.admin_msg_lr;
|
||
|
|
|
||
|
|
reg_val = (u64)admin->phy_addr;
|
||
|
|
ADF_CSR_WR(pmisc_addr, adminmsg_u, upper_32_bits(reg_val));
|
||
|
|
ADF_CSR_WR(pmisc_addr, adminmsg_l, lower_32_bits(reg_val));
|
||
|
|
|
||
|
|
mutex_init(&admin->lock);
|
||
|
|
admin->mailbox_addr = mailbox;
|
||
|
|
accel_dev->admin = admin;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(adf_init_admin_comms);
|
||
|
|
|
||
|
|
void adf_exit_admin_comms(struct adf_accel_dev *accel_dev)
|
||
|
|
{
|
||
|
|
struct adf_admin_comms *admin = accel_dev->admin;
|
||
|
|
|
||
|
|
if (!admin)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (admin->virt_addr)
|
||
|
|
dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
|
||
|
|
admin->virt_addr, admin->phy_addr);
|
||
|
|
if (admin->virt_tbl_addr)
|
||
|
|
dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
|
||
|
|
admin->virt_tbl_addr, admin->const_tbl_addr);
|
||
|
|
|
||
|
|
mutex_destroy(&admin->lock);
|
||
|
|
kfree(admin);
|
||
|
|
accel_dev->admin = NULL;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(adf_exit_admin_comms);
|