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| author |   Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-03 11:52:33 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-03 11:52:33 +0100 |
| commit | 56f68556d7bbb51dd158c74deb09c783345bfbbd (patch) | |
| tree | 536e6e3c7063b1eee927194dda257602bd3dc66f /arch/blackfin/include/asm/trace.h | |
| parent | Merge branch 'omap2-clock' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git (diff) | |
| parent | [ARM] omap: fix a load of "warning: symbol 'xxx' was not declared. Should it be static?" (diff) | |
| download | linux-dev-56f68556d7bbb51dd158c74deb09c783345bfbbd.tar.xz linux-dev-56f68556d7bbb51dd158c74deb09c783345bfbbd.zip | |
Merge unstable branch 'omap-rmk'
Merge branch 'omap-rmk' into omap-all
Diffstat (limited to 'arch/blackfin/include/asm/trace.h')
| -rw-r--r-- | arch/blackfin/include/asm/trace.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/trace.h b/arch/blackfin/include/asm/trace.h new file mode 100644 index 000000000000..312b596b9731 --- /dev/null +++ b/arch/blackfin/include/asm/trace.h @@ -0,0 +1,94 @@ +/* + * Common header file for blackfin family of processors. + * + */ + +#ifndef _BLACKFIN_TRACE_ +#define _BLACKFIN_TRACE_ + +/* Normally, we use ON, but you can't turn on software expansion until + * interrupts subsystem is ready + */ + +#define BFIN_TRACE_INIT ((CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION << 4) | 0x03) +#ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND +#define BFIN_TRACE_ON (BFIN_TRACE_INIT | (CONFIG_DEBUG_BFIN_HWTRACE_EXPAND << 2)) +#else +#define BFIN_TRACE_ON (BFIN_TRACE_INIT) +#endif + +#ifndef __ASSEMBLY__ +extern unsigned long trace_buff_offset; +extern unsigned long software_trace_buff[]; + +/* Trace Macros for C files */ + +#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON + +#define trace_buffer_save(x) \ + do { \ + (x) = bfin_read_TBUFCTL(); \ + bfin_write_TBUFCTL((x) & ~TBUFEN); \ + } while (0) + +#define trace_buffer_restore(x) \ + do { \ + bfin_write_TBUFCTL((x)); \ + } while (0) +#else /* DEBUG_BFIN_HWTRACE_ON */ + +#define trace_buffer_save(x) +#define trace_buffer_restore(x) +#endif /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ + +#else +/* Trace Macros for Assembly files */ + +#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON + +#define trace_buffer_stop(preg, dreg) \ + preg.L = LO(TBUFCTL); \ + preg.H = HI(TBUFCTL); \ + dreg = 0x1; \ + [preg] = dreg; + +#define trace_buffer_init(preg, dreg) \ + preg.L = LO(TBUFCTL); \ + preg.H = HI(TBUFCTL); \ + dreg = BFIN_TRACE_INIT; \ + [preg] = dreg; + +#define trace_buffer_save(preg, dreg) \ + preg.L = LO(TBUFCTL); \ + preg.H = HI(TBUFCTL); \ + dreg = [preg]; \ + [--sp] = dreg; \ + dreg = 0x1; \ + [preg] = dreg; + +#define trace_buffer_restore(preg, dreg) \ + preg.L = LO(TBUFCTL); \ + preg.H = HI(TBUFCTL); \ + dreg = [sp++]; \ + [preg] = dreg; + +#else /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ + +#define trace_buffer_stop(preg, dreg) +#define trace_buffer_init(preg, dreg) +#define trace_buffer_save(preg, dreg) +#define trace_buffer_restore(preg, dreg) + +#endif /* CONFIG_DEBUG_BFIN_HWTRACE_ON */ + +#ifdef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE +# define DEBUG_HWTRACE_SAVE(preg, dreg) trace_buffer_save(preg, dreg) +# define DEBUG_HWTRACE_RESTORE(preg, dreg) trace_buffer_restore(preg, dreg) +#else +# define DEBUG_HWTRACE_SAVE(preg, dreg) +# define DEBUG_HWTRACE_RESTORE(preg, dreg) +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* _BLACKFIN_TRACE_ */ |