d08502f245
These inline functions immediately exploit the static ioremaps for the queue manager memory region. This does not work with multiplatform where everything need to be dynamically remapped, so get rid of these inlines and create new exports for those used by other drivers. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef IXP4XX_QMGR_H
|
|
#define IXP4XX_QMGR_H
|
|
|
|
#include <linux/io.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#define DEBUG_QMGR 0
|
|
|
|
#define HALF_QUEUES 32
|
|
#define QUEUES 64
|
|
#define MAX_QUEUE_LENGTH 4 /* in dwords */
|
|
|
|
#define QUEUE_STAT1_EMPTY 1 /* queue status bits */
|
|
#define QUEUE_STAT1_NEARLY_EMPTY 2
|
|
#define QUEUE_STAT1_NEARLY_FULL 4
|
|
#define QUEUE_STAT1_FULL 8
|
|
#define QUEUE_STAT2_UNDERFLOW 1
|
|
#define QUEUE_STAT2_OVERFLOW 2
|
|
|
|
#define QUEUE_WATERMARK_0_ENTRIES 0
|
|
#define QUEUE_WATERMARK_1_ENTRY 1
|
|
#define QUEUE_WATERMARK_2_ENTRIES 2
|
|
#define QUEUE_WATERMARK_4_ENTRIES 3
|
|
#define QUEUE_WATERMARK_8_ENTRIES 4
|
|
#define QUEUE_WATERMARK_16_ENTRIES 5
|
|
#define QUEUE_WATERMARK_32_ENTRIES 6
|
|
#define QUEUE_WATERMARK_64_ENTRIES 7
|
|
|
|
/* queue interrupt request conditions */
|
|
#define QUEUE_IRQ_SRC_EMPTY 0
|
|
#define QUEUE_IRQ_SRC_NEARLY_EMPTY 1
|
|
#define QUEUE_IRQ_SRC_NEARLY_FULL 2
|
|
#define QUEUE_IRQ_SRC_FULL 3
|
|
#define QUEUE_IRQ_SRC_NOT_EMPTY 4
|
|
#define QUEUE_IRQ_SRC_NOT_NEARLY_EMPTY 5
|
|
#define QUEUE_IRQ_SRC_NOT_NEARLY_FULL 6
|
|
#define QUEUE_IRQ_SRC_NOT_FULL 7
|
|
|
|
struct qmgr_regs {
|
|
u32 acc[QUEUES][MAX_QUEUE_LENGTH]; /* 0x000 - 0x3FF */
|
|
u32 stat1[4]; /* 0x400 - 0x40F */
|
|
u32 stat2[2]; /* 0x410 - 0x417 */
|
|
u32 statne_h; /* 0x418 - queue nearly empty */
|
|
u32 statf_h; /* 0x41C - queue full */
|
|
u32 irqsrc[4]; /* 0x420 - 0x42F IRC source */
|
|
u32 irqen[2]; /* 0x430 - 0x437 IRQ enabled */
|
|
u32 irqstat[2]; /* 0x438 - 0x43F - IRQ access only */
|
|
u32 reserved[1776];
|
|
u32 sram[2048]; /* 0x2000 - 0x3FFF - config and buffer */
|
|
};
|
|
|
|
void qmgr_put_entry(unsigned int queue, u32 val);
|
|
u32 qmgr_get_entry(unsigned int queue);
|
|
int qmgr_stat_empty(unsigned int queue);
|
|
int qmgr_stat_below_low_watermark(unsigned int queue);
|
|
int qmgr_stat_full(unsigned int queue);
|
|
int qmgr_stat_overflow(unsigned int queue);
|
|
void qmgr_release_queue(unsigned int queue);
|
|
void qmgr_set_irq(unsigned int queue, int src,
|
|
void (*handler)(void *pdev), void *pdev);
|
|
void qmgr_enable_irq(unsigned int queue);
|
|
void qmgr_disable_irq(unsigned int queue);
|
|
|
|
/* request_ and release_queue() must be called from non-IRQ context */
|
|
|
|
#if DEBUG_QMGR
|
|
extern char qmgr_queue_descs[QUEUES][32];
|
|
|
|
int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
|
|
unsigned int nearly_empty_watermark,
|
|
unsigned int nearly_full_watermark,
|
|
const char *desc_format, const char* name);
|
|
#else
|
|
int __qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
|
|
unsigned int nearly_empty_watermark,
|
|
unsigned int nearly_full_watermark);
|
|
#define qmgr_request_queue(queue, len, nearly_empty_watermark, \
|
|
nearly_full_watermark, desc_format, name) \
|
|
__qmgr_request_queue(queue, len, nearly_empty_watermark, \
|
|
nearly_full_watermark)
|
|
#endif
|
|
|
|
#endif
|