diff options
Diffstat (limited to 'include/asm-blackfin')
| -rw-r--r-- | include/asm-blackfin/entry.h | 5 | ||||
| -rw-r--r-- | include/asm-blackfin/mach-common/context.S | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-blackfin/entry.h b/include/asm-blackfin/entry.h index 562c6d3a323..c4f721e0d00 100644 --- a/include/asm-blackfin/entry.h +++ b/include/asm-blackfin/entry.h @@ -17,6 +17,11 @@ #define PF_DTRACE_OFF 1 #define PF_DTRACE_BIT 5 +/* + * NOTE! The single-stepping code assumes that all interrupt handlers + * start by saving SYSCFG on the stack with their first instruction. + */ + /* This one is used for exceptions, emulation, and NMI. It doesn't push RETI and doesn't do cli. */ #define SAVE_ALL_SYS save_context_no_interrupts diff --git a/include/asm-blackfin/mach-common/context.S b/include/asm-blackfin/mach-common/context.S index fd0ebe1862b..c0e630edfb9 100644 --- a/include/asm-blackfin/mach-common/context.S +++ b/include/asm-blackfin/mach-common/context.S @@ -28,6 +28,11 @@ */ /* + * NOTE! The single-stepping code assumes that all interrupt handlers + * start by saving SYSCFG on the stack with their first instruction. + */ + +/* * Code to save processor context. * We even save the register which are preserved by a function call * - r4, r5, r6, r7, p3, p4, p5 |