[deliverable/linux.git] / drivers / crypto / qat / qat_common / adf_admin.c

/*
  This file is provided under a dual BSD/GPLv2 license.  When using or
  redistributing this file, you may do so under either license.

  GPL LICENSE SUMMARY
  Copyright(c) 2014 Intel Corporation.
  This program is free software; you can redistribute it and/or modify
  it under the terms of version 2 of the GNU General Public License as
  published by the Free Software Foundation.

  This program is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  Contact Information:
  qat-linux@intel.com

  BSD LICENSE
  Copyright(c) 2014 Intel Corporation.
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in
      the documentation and/or other materials provided with the
      distribution.
    * Neither the name of Intel Corporation nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include "adf_accel_devices.h"
#include "icp_qat_fw_init_admin.h"

/* Admin Messages Registers */
#define ADF_DH895XCC_ADMINMSGUR_OFFSET (0x3A000 + 0x574)
#define ADF_DH895XCC_ADMINMSGLR_OFFSET (0x3A000 + 0x578)
#define ADF_DH895XCC_MAILBOX_BASE_OFFSET 0x20970
#define ADF_DH895XCC_MAILBOX_STRIDE 0x1000
#define ADF_ADMINMSG_LEN 32

static const u8 const_tab[1024] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x03, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x02, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13,
0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76,
0x54, 0x32, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x67, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab,
0x89, 0x98, 0xba, 0xdc, 0xfe, 0x10, 0x32, 0x54, 0x76, 0xc3, 0xd2, 0xe1, 0xf0,
0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc1, 0x05, 0x9e,
0xd8, 0x36, 0x7c, 0xd5, 0x07, 0x30, 0x70, 0xdd, 0x17, 0xf7, 0x0e, 0x59, 0x39,
0xff, 0xc0, 0x0b, 0x31, 0x68, 0x58, 0x15, 0x11, 0x64, 0xf9, 0x8f, 0xa7, 0xbe,
0xfa, 0x4f, 0xa4, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xbb, 0x67, 0xae,
0x85, 0x3c, 0x6e, 0xf3, 0x72, 0xa5, 0x4f, 0xf5, 0x3a, 0x51, 0x0e, 0x52, 0x7f,
0x9b, 0x05, 0x68, 0x8c, 0x1f, 0x83, 0xd9, 0xab, 0x5b, 0xe0, 0xcd, 0x19, 0x05,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xcb, 0xbb, 0x9d, 0x5d, 0xc1, 0x05, 0x9e, 0xd8, 0x62, 0x9a, 0x29,
0x2a, 0x36, 0x7c, 0xd5, 0x07, 0x91, 0x59, 0x01, 0x5a, 0x30, 0x70, 0xdd, 0x17,
0x15, 0x2f, 0xec, 0xd8, 0xf7, 0x0e, 0x59, 0x39, 0x67, 0x33, 0x26, 0x67, 0xff,
0xc0, 0x0b, 0x31, 0x8e, 0xb4, 0x4a, 0x87, 0x68, 0x58, 0x15, 0x11, 0xdb, 0x0c,
0x2e, 0x0d, 0x64, 0xf9, 0x8f, 0xa7, 0x47, 0xb5, 0x48, 0x1d, 0xbe, 0xfa, 0x4f,
0xa4, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x6a, 0x09, 0xe6, 0x67, 0xf3, 0xbc, 0xc9, 0x08, 0xbb,
0x67, 0xae, 0x85, 0x84, 0xca, 0xa7, 0x3b, 0x3c, 0x6e, 0xf3, 0x72, 0xfe, 0x94,
0xf8, 0x2b, 0xa5, 0x4f, 0xf5, 0x3a, 0x5f, 0x1d, 0x36, 0xf1, 0x51, 0x0e, 0x52,
0x7f, 0xad, 0xe6, 0x82, 0xd1, 0x9b, 0x05, 0x68, 0x8c, 0x2b, 0x3e, 0x6c, 0x1f,
0x1f, 0x83, 0xd9, 0xab, 0xfb, 0x41, 0xbd, 0x6b, 0x5b, 0xe0, 0xcd, 0x19, 0x13,
0x7e, 0x21, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

struct adf_admin_comms {
	dma_addr_t phy_addr;
	dma_addr_t const_tbl_addr;
	void *virt_addr;
	void __iomem *mailbox_addr;
	struct mutex lock;	/* protects adf_admin_comms struct */
};

static int adf_put_admin_msg_sync(struct adf_accel_dev *accel_dev, u32 ae,
				  void *in, void *out)
{
	struct adf_admin_comms *admin = accel_dev->admin;
	int offset = ae * ADF_ADMINMSG_LEN * 2;
	void __iomem *mailbox = admin->mailbox_addr;
	int mb_offset = ae * ADF_DH895XCC_MAILBOX_STRIDE;
	int times, received;

	mutex_lock(&admin->lock);

	if (ADF_CSR_RD(mailbox, mb_offset) == 1) {
		mutex_unlock(&admin->lock);
		return -EAGAIN;
	}

	memcpy(admin->virt_addr + offset, in, ADF_ADMINMSG_LEN);
	ADF_CSR_WR(mailbox, mb_offset, 1);
	received = 0;
	for (times = 0; times < 50; times++) {
		msleep(20);
		if (ADF_CSR_RD(mailbox, mb_offset) == 0) {
			received = 1;
			break;
		}
	}
	if (received)
		memcpy(out, admin->virt_addr + offset +
		       ADF_ADMINMSG_LEN, ADF_ADMINMSG_LEN);
	else
		dev_err(&GET_DEV(accel_dev),
			"Failed to send admin msg to accelerator\n");

	mutex_unlock(&admin->lock);
	return received ? 0 : -EFAULT;
}

static int adf_send_admin_cmd(struct adf_accel_dev *accel_dev, int cmd)
{
	struct adf_hw_device_data *hw_device = accel_dev->hw_device;
	struct icp_qat_fw_init_admin_req req;
	struct icp_qat_fw_init_admin_resp resp;
	int i;

	memset(&req, 0, sizeof(struct icp_qat_fw_init_admin_req));
	req.init_admin_cmd_id = cmd;

	if (cmd == ICP_QAT_FW_CONSTANTS_CFG) {
		req.init_cfg_sz = 1024;
		req.init_cfg_ptr = accel_dev->admin->const_tbl_addr;
	}
	for (i = 0; i < hw_device->get_num_aes(hw_device); i++) {
		memset(&resp, 0, sizeof(struct icp_qat_fw_init_admin_resp));
		if (adf_put_admin_msg_sync(accel_dev, i, &req, &resp) ||
		    resp.init_resp_hdr.status)
			return -EFAULT;
	}
	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)
{
	int ret = adf_send_admin_cmd(accel_dev, ICP_QAT_FW_INIT_ME);

	if (ret)
		return ret;
	return adf_send_admin_cmd(accel_dev, ICP_QAT_FW_CONSTANTS_CFG);
}
EXPORT_SYMBOL_GPL(adf_send_admin_init);

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;
	struct adf_bar *pmisc =
		&GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
	void __iomem *csr = pmisc->virt_addr;
	void __iomem *mailbox = csr + ADF_DH895XCC_MAILBOX_BASE_OFFSET;
	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_zalloc_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->const_tbl_addr = dma_map_single(&GET_DEV(accel_dev),
					       (void *) const_tab, 1024,
					       DMA_TO_DEVICE);

	if (unlikely(dma_mapping_error(&GET_DEV(accel_dev),
				       admin->const_tbl_addr))) {
		dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
				  admin->virt_addr, admin->phy_addr);
		kfree(admin);
		return -ENOMEM;
	}
	reg_val = (u64)admin->phy_addr;
	ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGUR_OFFSET, reg_val >> 32);
	ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGLR_OFFSET, 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);

	dma_unmap_single(&GET_DEV(accel_dev), admin->const_tbl_addr, 1024,
			 DMA_TO_DEVICE);
	mutex_destroy(&admin->lock);
	kfree(admin);
	accel_dev->admin = NULL;
}
EXPORT_SYMBOL_GPL(adf_exit_admin_comms);
Commit	Line	Data
7afa232e TS	1	/*
	2	This file is provided under a dual BSD/GPLv2 license. When using or
	3	redistributing this file, you may do so under either license.
	4
	5	GPL LICENSE SUMMARY
	6	Copyright(c) 2014 Intel Corporation.
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of version 2 of the GNU General Public License as
	9	published by the Free Software Foundation.
	10
	11	This program is distributed in the hope that it will be useful, but
	12	WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	General Public License for more details.
	15
	16	Contact Information:
	17	qat-linux@intel.com
	18
	19	BSD LICENSE
	20	Copyright(c) 2014 Intel Corporation.
	21	Redistribution and use in source and binary forms, with or without
	22	modification, are permitted provided that the following conditions
	23	are met:
	24
	25	* Redistributions of source code must retain the above copyright
	26	notice, this list of conditions and the following disclaimer.
	27	* Redistributions in binary form must reproduce the above copyright
	28	notice, this list of conditions and the following disclaimer in
	29	the documentation and/or other materials provided with the
	30	distribution.
	31	* Neither the name of Intel Corporation nor the names of its
	32	contributors may be used to endorse or promote products derived
	33	from this software without specific prior written permission.
	34
	35	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	36	"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	37	LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	38	A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	39	OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	40	SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	41	LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	42	DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	43	THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	44	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	45	OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	46	*/
	47	#include <linux/types.h>
	48	#include <linux/mutex.h>
	49	#include <linux/slab.h>
	50	#include <linux/delay.h>
	51	#include <linux/pci.h>
	52	#include <linux/dma-mapping.h>
a5733139 TS	53	#include "adf_accel_devices.h"
	54	#include "icp_qat_fw_init_admin.h"
	55
	56	/* Admin Messages Registers */
	57	#define ADF_DH895XCC_ADMINMSGUR_OFFSET (0x3A000 + 0x574)
	58	#define ADF_DH895XCC_ADMINMSGLR_OFFSET (0x3A000 + 0x578)
	59	#define ADF_DH895XCC_MAILBOX_BASE_OFFSET 0x20970
	60	#define ADF_DH895XCC_MAILBOX_STRIDE 0x1000
7afa232e TS	61	#define ADF_ADMINMSG_LEN 32
7afa232e TS	62
89c07b8a TS	63	static const u8 const_tab[1024] = {
	64	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	65	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	66	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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143
7afa232e TS	144	struct adf_admin_comms {
7afa232e TS	145	dma_addr_t phy_addr;
89c07b8a	146	dma_addr_t const_tbl_addr;
7afa232e TS	147	void *virt_addr;
	148	void __iomem *mailbox_addr;
	149	struct mutex lock; /* protects adf_admin_comms struct */
	150	};
	151
a5733139 TS	152	static int adf_put_admin_msg_sync(struct adf_accel_dev *accel_dev, u32 ae,
a5733139 TS	153	void in, void out)
7afa232e TS	154	{
	155	struct adf_admin_comms *admin = accel_dev->admin;
	156	int offset = ae * ADF_ADMINMSG_LEN * 2;
	157	void __iomem *mailbox = admin->mailbox_addr;
	158	int mb_offset = ae * ADF_DH895XCC_MAILBOX_STRIDE;
	159	int times, received;
	160
	161	mutex_lock(&admin->lock);
	162
	163	if (ADF_CSR_RD(mailbox, mb_offset) == 1) {
	164	mutex_unlock(&admin->lock);
	165	return -EAGAIN;
	166	}
	167
	168	memcpy(admin->virt_addr + offset, in, ADF_ADMINMSG_LEN);
	169	ADF_CSR_WR(mailbox, mb_offset, 1);
	170	received = 0;
	171	for (times = 0; times < 50; times++) {
	172	msleep(20);
	173	if (ADF_CSR_RD(mailbox, mb_offset) == 0) {
	174	received = 1;
	175	break;
	176	}
	177	}
	178	if (received)
	179	memcpy(out, admin->virt_addr + offset +
	180	ADF_ADMINMSG_LEN, ADF_ADMINMSG_LEN);
	181	else
66550304 AB	182	dev_err(&GET_DEV(accel_dev),
66550304 AB	183	"Failed to send admin msg to accelerator\n");
7afa232e TS	184
	185	mutex_unlock(&admin->lock);
	186	return received ? 0 : -EFAULT;
	187	}
	188
a5733139 TS	189	static int adf_send_admin_cmd(struct adf_accel_dev *accel_dev, int cmd)
	190	{
	191	struct adf_hw_device_data *hw_device = accel_dev->hw_device;
	192	struct icp_qat_fw_init_admin_req req;
	193	struct icp_qat_fw_init_admin_resp resp;
	194	int i;
	195
	196	memset(&req, 0, sizeof(struct icp_qat_fw_init_admin_req));
	197	req.init_admin_cmd_id = cmd;
89c07b8a TS	198
	199	if (cmd == ICP_QAT_FW_CONSTANTS_CFG) {
	200	req.init_cfg_sz = 1024;
	201	req.init_cfg_ptr = accel_dev->admin->const_tbl_addr;
	202	}
a5733139 TS	203	for (i = 0; i < hw_device->get_num_aes(hw_device); i++) {
	204	memset(&resp, 0, sizeof(struct icp_qat_fw_init_admin_resp));
	205	if (adf_put_admin_msg_sync(accel_dev, i, &req, &resp) \|\|
	206	resp.init_resp_hdr.status)
	207	return -EFAULT;
	208	}
	209	return 0;
	210	}
	211
	212	/**
	213	* adf_send_admin_init() - Function sends init message to FW
	214	* @accel_dev: Pointer to acceleration device.
	215	*
	216	* Function sends admin init message to the FW
	217	*
	218	* Return: 0 on success, error code otherwise.
	219	*/
	220	int adf_send_admin_init(struct adf_accel_dev *accel_dev)
	221	{
89c07b8a TS	222	int ret = adf_send_admin_cmd(accel_dev, ICP_QAT_FW_INIT_ME);
	223
	224	if (ret)
	225	return ret;
	226	return adf_send_admin_cmd(accel_dev, ICP_QAT_FW_CONSTANTS_CFG);
a5733139 TS	227	}
	228	EXPORT_SYMBOL_GPL(adf_send_admin_init);
	229
7afa232e TS	230	int adf_init_admin_comms(struct adf_accel_dev *accel_dev)
	231	{
	232	struct adf_admin_comms *admin;
a5733139 TS	233	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
	234	struct adf_bar *pmisc =
	235	&GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)];
7afa232e TS	236	void __iomem *csr = pmisc->virt_addr;
7afa232e TS	237	void __iomem *mailbox = csr + ADF_DH895XCC_MAILBOX_BASE_OFFSET;
a5733139	238	u64 reg_val;
7afa232e TS	239
7afa232e TS	240	admin = kzalloc_node(sizeof(*accel_dev->admin), GFP_KERNEL,
09adc878	241	dev_to_node(&GET_DEV(accel_dev)));
7afa232e TS	242	if (!admin)
	243	return -ENOMEM;
	244	admin->virt_addr = dma_zalloc_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
	245	&admin->phy_addr, GFP_KERNEL);
	246	if (!admin->virt_addr) {
	247	dev_err(&GET_DEV(accel_dev), "Failed to allocate dma buff\n");
	248	kfree(admin);
	249	return -ENOMEM;
	250	}
89c07b8a TS	251
	252	admin->const_tbl_addr = dma_map_single(&GET_DEV(accel_dev),
	253	(void *) const_tab, 1024,
	254	DMA_TO_DEVICE);
	255
	256	if (unlikely(dma_mapping_error(&GET_DEV(accel_dev),
	257	admin->const_tbl_addr))) {
	258	dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
	259	admin->virt_addr, admin->phy_addr);
	260	kfree(admin);
	261	return -ENOMEM;
	262	}
a5733139	263	reg_val = (u64)admin->phy_addr;
7afa232e TS	264	ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGUR_OFFSET, reg_val >> 32);
	265	ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGLR_OFFSET, reg_val);
	266	mutex_init(&admin->lock);
	267	admin->mailbox_addr = mailbox;
	268	accel_dev->admin = admin;
	269	return 0;
	270	}
a5733139	271	EXPORT_SYMBOL_GPL(adf_init_admin_comms);
7afa232e TS	272
	273	void adf_exit_admin_comms(struct adf_accel_dev *accel_dev)
	274	{
	275	struct adf_admin_comms *admin = accel_dev->admin;
	276
	277	if (!admin)
	278	return;
	279
	280	if (admin->virt_addr)
	281	dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE,
	282	admin->virt_addr, admin->phy_addr);
	283
89c07b8a TS	284	dma_unmap_single(&GET_DEV(accel_dev), admin->const_tbl_addr, 1024,
89c07b8a TS	285	DMA_TO_DEVICE);
7afa232e TS	286	mutex_destroy(&admin->lock);
	287	kfree(admin);
	288	accel_dev->admin = NULL;
	289	}
a5733139	290	EXPORT_SYMBOL_GPL(adf_exit_admin_comms);