Re: [PATCH] powerpc/32s: fix suspend/resume when IBATs 4-7 are used

2019-06-17 Thread Segher Boessenkool
On Mon, Jun 17, 2019 at 06:53:47PM +0200, Andreas Schwab wrote: > AS arch/powerpc/kernel/swsusp_32.o > arch/powerpc/kernel/swsusp_32.S: Assembler messages: > arch/powerpc/kernel/swsusp_32.S:109: Error: invalid bat number > arch/powerpc/kernel/swsusp_32.S:111: Error: invalid bat number (etc.)

Re: [PATCH] powerpc/32s: fix suspend/resume when IBATs 4-7 are used

2019-06-17 Thread Andreas Schwab
AS arch/powerpc/kernel/swsusp_32.o arch/powerpc/kernel/swsusp_32.S: Assembler messages: arch/powerpc/kernel/swsusp_32.S:109: Error: invalid bat number arch/powerpc/kernel/swsusp_32.S:111: Error: invalid bat number arch/powerpc/kernel/swsusp_32.S:113: Error: invalid bat number arch/powerpc/ke

[PATCH] powerpc/32s: fix suspend/resume when IBATs 4-7 are used

2019-06-16 Thread Christophe Leroy
Previously, only IBAT1 and IBAT2 were used to map kernel linear mem. Since commit 63b2bc619565 ("powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX"), we may have all 8 BATs used for mapping kernel text. But the suspend/restore functions only save/restore BATs 0 to 3, and clears BATs 4 to 7. Make susp