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| author | Marc Gauthier | 2013-01-05 01:57:17 +0100 |
|---|---|---|
| committer | Chris Zankel | 2013-02-24 04:12:52 +0100 |
| commit | 2d1c645cc50b8f5a718b24bad9eb3931e7105d12 (patch) | |
| tree | c385e5064cee10f79b9c359ddd99bd5d1b9f838a /arch/xtensa/kernel/setup.c | |
| parent | xtensa: Add config files for Diamond 233L - Rev C processor variant (diff) | |
| download | kernel-qcow2-linux-2d1c645cc50b8f5a718b24bad9eb3931e7105d12.tar.gz kernel-qcow2-linux-2d1c645cc50b8f5a718b24bad9eb3931e7105d12.tar.xz kernel-qcow2-linux-2d1c645cc50b8f5a718b24bad9eb3931e7105d12.zip | |
xtensa: dispatch medium-priority interrupts
Add support for dispatching medium-priority interrupts, that is,
interrupts of priority levels 2 to EXCM_LEVEL. IRQ handling may be
preempted by higher priority IRQ.
Signed-off-by: Marc Gauthier <marc@tensilica.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/kernel/setup.c')
| -rw-r--r-- | arch/xtensa/kernel/setup.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 24c1a57abb40..6dd25ecde3f5 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -328,6 +328,27 @@ extern char _UserExceptionVector_literal_start; extern char _UserExceptionVector_text_end; extern char _DoubleExceptionVector_literal_start; extern char _DoubleExceptionVector_text_end; +#if XCHAL_EXCM_LEVEL >= 2 +extern char _Level2InterruptVector_text_start; +extern char _Level2InterruptVector_text_end; +#endif +#if XCHAL_EXCM_LEVEL >= 3 +extern char _Level3InterruptVector_text_start; +extern char _Level3InterruptVector_text_end; +#endif +#if XCHAL_EXCM_LEVEL >= 4 +extern char _Level4InterruptVector_text_start; +extern char _Level4InterruptVector_text_end; +#endif +#if XCHAL_EXCM_LEVEL >= 5 +extern char _Level5InterruptVector_text_start; +extern char _Level5InterruptVector_text_end; +#endif +#if XCHAL_EXCM_LEVEL >= 6 +extern char _Level6InterruptVector_text_start; +extern char _Level6InterruptVector_text_end; +#endif + #ifdef CONFIG_S32C1I_SELFTEST @@ -482,6 +503,27 @@ void __init setup_arch(char **cmdline_p) mem_reserve(__pa(&_DoubleExceptionVector_literal_start), __pa(&_DoubleExceptionVector_text_end), 0); +#if XCHAL_EXCM_LEVEL >= 2 + mem_reserve(__pa(&_Level2InterruptVector_text_start), + __pa(&_Level2InterruptVector_text_end), 0); +#endif +#if XCHAL_EXCM_LEVEL >= 3 + mem_reserve(__pa(&_Level3InterruptVector_text_start), + __pa(&_Level3InterruptVector_text_end), 0); +#endif +#if XCHAL_EXCM_LEVEL >= 4 + mem_reserve(__pa(&_Level4InterruptVector_text_start), + __pa(&_Level4InterruptVector_text_end), 0); +#endif +#if XCHAL_EXCM_LEVEL >= 5 + mem_reserve(__pa(&_Level5InterruptVector_text_start), + __pa(&_Level5InterruptVector_text_end), 0); +#endif +#if XCHAL_EXCM_LEVEL >= 6 + mem_reserve(__pa(&_Level6InterruptVector_text_start), + __pa(&_Level6InterruptVector_text_end), 0); +#endif + bootmem_init(); #ifdef CONFIG_OF |