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| author | Daniel Hellstrom <daniel@gaisler.com> | 2014-05-29 21:39:18 +0200 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2014-10-09 13:18:01 +0200 |
| commit | fad33860ae86b78e8fedd2f8832f379e80909c83 (patch) | |
| tree | aebd4b0a47047e407256100557f38d4a0fee5702 /c/src/lib/libbsp/sparc/leon3 | |
| parent | SPARC BSPs: added CPU aware interrupt ctrl operations (diff) | |
| download | rtems-fad33860ae86b78e8fedd2f8832f379e80909c83.tar.bz2 | |
LEON3 SMP: support static interrupt affinity
Changed LEON3_irq-mp to const also.
Diffstat (limited to 'c/src/lib/libbsp/sparc/leon3')
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/include/bsp.h | 13 | ||||
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/startup/bspsmp.c | 2 |
2 files changed, 13 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/include/bsp.h b/c/src/lib/libbsp/sparc/leon3/include/bsp.h index a4a4a6f788..5cc6e026a6 100644 --- a/c/src/lib/libbsp/sparc/leon3/include/bsp.h +++ b/c/src/lib/libbsp/sparc/leon3/include/bsp.h @@ -220,7 +220,18 @@ extern void BSP_shared_interrupt_mask(int irq); * to override the BSP default. * See startup/bspsmp.c for the default value. */ -extern unsigned char LEON3_mp_irq; +extern const unsigned char LEON3_mp_irq; + +#ifdef RTEMS_SMP +/* Weak table used to implement static interrupt CPU affinity in a SMP + * configuration. The array index is the interrupt to be looked up, and + * the array[INTERRUPT] content is the CPU number relative to boot CPU + * index that will be servicing the interrupts from the IRQ source. The + * default is to let the first CPU (the boot cpu) to handle all + * interrupts (all zeros). + */ +extern const unsigned char LEON3_irq_to_cpu[32]; +#endif #ifdef __cplusplus } diff --git a/c/src/lib/libbsp/sparc/leon3/startup/bspsmp.c b/c/src/lib/libbsp/sparc/leon3/startup/bspsmp.c index 567c971d2e..45ac92be0b 100644 --- a/c/src/lib/libbsp/sparc/leon3/startup/bspsmp.c +++ b/c/src/lib/libbsp/sparc/leon3/startup/bspsmp.c @@ -24,7 +24,7 @@ /* Irq used by shared memory driver and for inter-processor interrupts. * Can be overridden by being defined in the application. */ -unsigned char LEON3_mp_irq __attribute__((weak)) = 14; +const unsigned char LEON3_mp_irq __attribute__((weak)) = 14; #if !defined(__leon__) || defined(RTEMS_PARAVIRT) uint32_t _CPU_SMP_Get_current_processor( void ) |