linux-imx

/*

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License, version 2, 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.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

 *

 * Copyright (C) 2013 Freescale Semiconductor, Inc.

 *

 */

​

#define pr_fmt(fmt)    "fsl-pamu: %s: " fmt, __func__

​

#include "fsl_pamu.h"

​

#include <linux/fsl/guts.h>

#include <linux/interrupt.h>

#include <linux/genalloc.h>

​

#include <asm/mpc85xx.h>

​

/* define indexes for each operation mapping scenario */

#define OMI_QMAN        0x00

#define OMI_FMAN        0x01

#define OMI_QMAN_PRIV   0x02

#define OMI_CAAM        0x03

​

#define make64(high, low) (((u64)(high) << 32) | (low))

​

struct pamu_isr_data {

    void __iomem *pamu_reg_base;    /* Base address of PAMU regs */

    unsigned int count;     /* The number of PAMUs */

};

​

static struct paace *ppaact;

static struct paace *spaact;

​

static bool probed;         /* Has PAMU been probed? */

​

/*

 * Table for matching compatible strings, for device tree

 * guts node, for QorIQ SOCs.

 * "fsl,qoriq-device-config-2.0" corresponds to T4 & B4

 * SOCs. For the older SOCs "fsl,qoriq-device-config-1.0"

 * string would be used.

 */

static const struct of_device_id guts_device_ids[] = {

    { .compatible = "fsl,qoriq-device-config-1.0", },

    { .compatible = "fsl,qoriq-device-config-2.0", },

    {}

};

​

/*

 * Table for matching compatible strings, for device tree

 * L3 cache controller node.

 * "fsl,t4240-l3-cache-controller" corresponds to T4,

 * "fsl,b4860-l3-cache-controller" corresponds to B4 &

 * "fsl,p4080-l3-cache-controller" corresponds to other,

 * SOCs.

 */

static const struct of_device_id l3_device_ids[] = {

    { .compatible = "fsl,t4240-l3-cache-controller", },

    { .compatible = "fsl,b4860-l3-cache-controller", },

    { .compatible = "fsl,p4080-l3-cache-controller", },

    {}

};

​

/* maximum subwindows permitted per liodn */

static u32 max_subwindow_count;

​

/* Pool for fspi allocation */

static struct gen_pool *spaace_pool;

​

/**

 * pamu_get_max_subwin_cnt() - Return the maximum supported

 * subwindow count per liodn.

 *

 */

u32 pamu_get_max_subwin_cnt(void)

{

    return max_subwindow_count;

}

​

/**

 * pamu_get_ppaace() - Return the primary PACCE