Update the TLB asm to make proper use of _PAGE_DIRY and _PAGE_ACCESSED.
Get rid of _PAGE_HWWRITE too.
Pros:
- I/D TLB Miss never needs to write to the linux pte.
- _PAGE_ACCESSED is only set on TLB Error fixing accounting
- _PAGE_DIRTY is mapped to 0x100, the changed bit, and is set directly
Update the TLB asm to make proper use of _PAGE_DIRY and _PAGE_ACCESSED.
Get rid of _PAGE_HWWRITE too.
Pros:
- I/D TLB Miss never needs to write to the linux pte.
- _PAGE_ACCESSED is only set on TLB Error fixing accounting
- _PAGE_DIRTY is mapped to 0x100, the changed bit, and is set directly
On Sun, Oct 11, 2009 at 06:35:06PM +0200, Joakim Tjernlund wrote:
> + mfspr r11, SRR1
> + /* clear all error bits as TLB Miss
> + * sets a few unconditionally
> + */
> + rlwinm r11, r11, 0, 0x
> + mtspr SRR1, r11
arch/powerpc/kernel/head_8xx.S:369: Error: unsuppor
On Sun, 2009-10-11 at 18:35 +0200, Joakim Tjernlund wrote:
> @@ -522,26 +539,12 @@ DataTLBError:
I still think you should remove everything from DataTLBError, it's
just plain useless :-)
Ben.
> mfspr r11, SPRN_MD_TWC/* and get the pte
> address */
> lwz
Update the TLB asm to make proper use of _PAGE_DIRY and _PAGE_ACCESSED.
Get rid of _PAGE_HWWRITE too.
Pros:
- I/D TLB Miss never needs to write to the linux pte.
- _PAGE_ACCESSED is only set on TLB Error fixing accounting
- _PAGE_DIRTY is mapped to 0x100, the changed bit, and is set directly
