mirror of
https://github.com/u-boot/u-boot.git
synced 2024-11-25 21:24:21 +08:00
709e98b7b2
If an address is used with readb() and writeb() which is smaller than the expected size (e.g. 32-bit value on a machine with 64-bit addresses), a warning results. Fix this by adding a cast. Signed-off-by: Simon Glass <sjg@chromium.org>
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2014 Google, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __IOTRACE_H
|
|
#define __IOTRACE_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/*
|
|
* This file is designed to be included in arch/<arch>/include/asm/io.h.
|
|
* It redirects all IO access through a tracing/checksumming feature for
|
|
* testing purposes.
|
|
*/
|
|
|
|
#if defined(CONFIG_IO_TRACE) && !defined(IOTRACE_IMPL) && \
|
|
!defined(CONFIG_SPL_BUILD)
|
|
|
|
#undef readl
|
|
#define readl(addr) iotrace_readl((const void *)(addr))
|
|
|
|
#undef writel
|
|
#define writel(val, addr) iotrace_writel(val, (const void *)(addr))
|
|
|
|
#undef readw
|
|
#define readw(addr) iotrace_readw((const void *)(addr))
|
|
|
|
#undef writew
|
|
#define writew(val, addr) iotrace_writew(val, (const void *)(addr))
|
|
|
|
#undef readb
|
|
#define readb(addr) iotrace_readb((const void *)(uintptr_t)addr)
|
|
|
|
#undef writeb
|
|
#define writeb(val, addr) \
|
|
iotrace_writeb(val, (const void *)(uintptr_t)addr)
|
|
|
|
#endif
|
|
|
|
/* Tracing functions which mirror their io.h counterparts */
|
|
u32 iotrace_readl(const void *ptr);
|
|
void iotrace_writel(ulong value, const void *ptr);
|
|
u16 iotrace_readw(const void *ptr);
|
|
void iotrace_writew(ulong value, const void *ptr);
|
|
u8 iotrace_readb(const void *ptr);
|
|
void iotrace_writeb(ulong value, const void *ptr);
|
|
|
|
/**
|
|
* iotrace_reset_checksum() - Reset the iotrace checksum
|
|
*/
|
|
void iotrace_reset_checksum(void);
|
|
|
|
/**
|
|
* iotrace_get_checksum() - Get the current checksum value
|
|
*
|
|
* @return currect checksum value
|
|
*/
|
|
u32 iotrace_get_checksum(void);
|
|
|
|
/**
|
|
* iotrace_set_enabled() - Set whether iotracing is enabled or not
|
|
*
|
|
* This controls whether the checksum is updated and a trace record added
|
|
* for each I/O access.
|
|
*
|
|
* @enable: true to enable iotracing, false to disable
|
|
*/
|
|
void iotrace_set_enabled(int enable);
|
|
|
|
/**
|
|
* iotrace_get_enabled() - Get whether iotracing is enabled or not
|
|
*
|
|
* @return true if enabled, false if disabled
|
|
*/
|
|
int iotrace_get_enabled(void);
|
|
|
|
/**
|
|
* iotrace_set_buffer() - Set position and size of iotrace buffer
|
|
*
|
|
* Defines where the iotrace buffer goes, and resets the output pointer to
|
|
* the start of the buffer.
|
|
*
|
|
* The buffer can be 0 size in which case the checksum is updated but no
|
|
* trace records are writen. If the buffer is exhausted, the offset will
|
|
* continue to increase but not new data will be written.
|
|
*
|
|
* @start: Start address of buffer
|
|
* @size: Size of buffer in bytes
|
|
*/
|
|
void iotrace_set_buffer(ulong start, ulong size);
|
|
|
|
/**
|
|
* iotrace_get_buffer() - Get buffer information
|
|
*
|
|
* @start: Returns start address of buffer
|
|
* @size: Returns size of buffer in bytes
|
|
* @offset: Returns the byte offset where the next output trace record will
|
|
* @count: Returns the number of trace records recorded
|
|
* be written (or would be if the buffer was large enough)
|
|
*/
|
|
void iotrace_get_buffer(ulong *start, ulong *size, ulong *offset, ulong *count);
|
|
|
|
#endif /* __IOTRACE_H */
|