frv is the last user in the tree of that dubious hook, and it's my
understanding that it's not even needed. It's only called by memory.c
free_pgd_range() which is always called within an mmu_gather, and
tlb_flush() on frv will do a flush_tlb_mm(), which from my reading
of the code, seems to do what flush_tlb_ptables() does, which is
to clear the cached PGE.
Signed-off-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
---
Hi David ! I want to get rid of flush_tlb_pgtables() as part of my
work on the mmu_gather and frv seems to be the only one to still use it.
I don't think it needs it though, can you double check ?
Thanks !
Ben.
Index: linux-work/include/asm-frv/tlbflush.h
===================================================================
--- linux-work.orig/include/asm-frv/tlbflush.h 2007-07-27 09:40:38.000000000
+1000
+++ linux-work/include/asm-frv/tlbflush.h 2007-07-27 09:43:17.000000000
+1000
@@ -57,8 +57,7 @@ do {
\
#define __flush_tlb_global() flush_tlb_all()
#define flush_tlb() flush_tlb_all()
#define flush_tlb_kernel_range(start, end) flush_tlb_all()
-#define flush_tlb_pgtables(mm,start,end) \
- asm volatile("movgs %0,scr0 ! movgs %0,scr1" :: "r"(ULONG_MAX) :
"memory");
+#define flush_tlb_pgtables(mm,start,end) do { } while(0)
#else
-
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