7586bf7286
This change continues the theme from prev commit - this time icache handling for kernel's own code modification (vmalloc: loadable modules, breakpoints for kprobes/kgdb...) flush_icache_range() calls the CDU icache helper with vaddr to enable exact line invalidate. For a true kernel-virtual mapping, the vaddr is actually virtual hence valid as index into cache. For kprobes breakpoint however, the vaddr arg is actually paddr - since that's how normal kernel is mapped in ARC memory map. This implies that CDU will use the same addr for indexing as for tag match - which is fine since kernel code would only have that "implicit" mapping and none other. This should speed up module loading significantly - specially on default ARC700 icache configurations (32k) which alias. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> |
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| .. | ||
| cache_arc700.c | ||
| dma.c | ||
| extable.c | ||
| fault.c | ||
| init.c | ||
| ioremap.c | ||
| Makefile | ||
| tlb.c | ||
| tlbex.S | ||