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/*
* Copyright (C) 2014 Freescale Semiconductor
*
* SPDX-License-Identifier: GPL-2.0+
*/
/* Perform extra checking */
#include <common.h>
#include <errno.h>
#include <asm/io.h>
#include <linux/types.h>
#include <linux/compat.h>
#include <malloc.h>
#include <fsl-mc/fsl_qbman_base.h>
#define QBMAN_CHECKING
/* Any time there is a register interface which we poll on, this provides a
* "break after x iterations" scheme for it. It's handy for debugging, eg.
* where you don't want millions of lines of log output from a polling loop
* that won't, because such things tend to drown out the earlier log output
* that might explain what caused the problem. (NB: put ";" after each macro!)
* TODO: we should probably remove this once we're done sanitising the
* simulator...
*/
#define DBG_POLL_START(loopvar) (loopvar = 10)
#define DBG_POLL_CHECK(loopvar) \
do {if (!(loopvar--)) BUG_ON(NULL == "DBG_POLL_CHECK"); } while (0)
/* For CCSR or portal-CINH registers that contain fields at arbitrary offsets
* and widths, these macro-generated encode/decode/isolate/remove inlines can
* be used.
*
* Eg. to "d"ecode a 14-bit field out of a register (into a "uint16_t" type),
* where the field is located 3 bits "up" from the least-significant bit of the
* register (ie. the field location within the 32-bit register corresponds to a
* mask of 0x0001fff8), you would do;
* uint16_t field = d32_uint16_t(3, 14, reg_value);
*
* Or to "e"ncode a 1-bit boolean value (input type is "int", zero is FALSE,
* non-zero is TRUE, so must convert all non-zero inputs to 1, hence the "!!"
* operator) into a register at bit location 0x00080000 (19 bits "in" from the
* LS bit), do;
* reg_value |= e32_int(19, 1, !!field);
*
* If you wish to read-modify-write a register, such that you leave the 14-bit
* field as-is but have all other fields set to zero, then "i"solate the 14-bit
* value using;
* reg_value = i32_uint16_t(3, 14, reg_value);
*
* Alternatively, you could "r"emove the 1-bit boolean field (setting it to
* zero) but leaving all other fields as-is;
* reg_val = r32_int(19, 1, reg_value);
*
*/
#define MAKE_MASK32(width) (width == 32 ? 0xffffffff : \
(uint32_t)((1 << width) - 1))
#define DECLARE_CODEC32(t) \
static inline uint32_t e32_##t(uint32_t lsoffset, uint32_t width, t val) \
{ \
BUG_ON(width > (sizeof(t) * 8)); \
return ((uint32_t)val & MAKE_MASK32(width)) << lsoffset; \
} \
static inline t d32_##t(uint32_t lsoffset, uint32_t width, uint32_t val) \
{ \
BUG_ON(width > (sizeof(t) * 8)); \
return (t)((val >> lsoffset) & MAKE_MASK32(width)); \
} \
static inline uint32_t i32_##t(uint32_t lsoffset, uint32_t width, \
uint32_t val) \
{ \
BUG_ON(width > (sizeof(t) * 8)); \
return e32_##t(lsoffset, width, d32_##t(lsoffset, width, val)); \
} \
static inline uint32_t r32_##t(uint32_t lsoffset, uint32_t width, \
uint32_t val) \
{ \
BUG_ON(width > (sizeof(t) * 8)); \
return ~(MAKE_MASK32(width) << lsoffset) & val; \
}
DECLARE_CODEC32(uint32_t)
DECLARE_CODEC32(uint16_t)
DECLARE_CODEC32(uint8_t)
DECLARE_CODEC32(int)
/*********************/
/* Debugging assists */
/*********************/
static inline void __hexdump(unsigned long start, unsigned long end,
unsigned long p, size_t sz, const unsigned char *c)
{
while (start < end) {
unsigned int pos = 0;
char buf[64];
int nl = 0;
pos += sprintf(buf + pos, "%08lx: ", start);
do {
if ((start < p) || (start >= (p + sz)))
pos += sprintf(buf + pos, "..");
else
pos += sprintf(buf + pos, "%02x", *(c++));
if (!(++start & 15)) {
buf[pos++] = '\n';
nl = 1;
} else {
nl = 0;
if (!(start & 1))
buf[pos++] = ' ';
if (!(start & 3))
buf[pos++] = ' ';
}
} while (start & 15);
if (!nl)
buf[pos++] = '\n';
buf[pos] = '\0';
debug("%s", buf);
}
}
static inline void hexdump(const void *ptr, size_t sz)
{
unsigned long p = (unsigned long)ptr;
unsigned long start = p & ~(unsigned long)15;
unsigned long end = (p + sz + 15) & ~(unsigned long)15;
const unsigned char *c = ptr;
__hexdump(start, end, p, sz, c);
}
#if defined(__BIG_ENDIAN)
#define DQRR_TOK_OFFSET 0
#else
#define DQRR_TOK_OFFSET 24
#endif
/* Similarly-named functions */
#define upper32(a) upper_32_bits(a)
#define lower32(a) lower_32_bits(a)
/****************/
/* arch assists */
/****************/
static inline void dcbz(void *ptr)
{
uint32_t *p = ptr;
BUG_ON((unsigned long)ptr & 63);
p[0] = 0;
p[1] = 0;
p[2] = 0;
p[3] = 0;
p[4] = 0;
p[5] = 0;
p[6] = 0;
p[7] = 0;
p[8] = 0;
p[9] = 0;
p[10] = 0;
p[11] = 0;
p[12] = 0;
p[13] = 0;
p[14] = 0;
p[15] = 0;
}
#define lwsync()
#include "qbman_sys.h"
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