[PATCH] powerpc/pseries: Use H_CLEAR_HPT to clear MMU hash table during kexec

2016-10-01 Thread Anton Blanchard
From: Anton Blanchard An hcall was recently added that does exactly what we need during kexec - it clears the entire MMU hash table, ignoring any VRMA mappings. Try it and fall back to the old method if we get a failure. On a POWER8 box with 5TB of memory, this reduces the time it takes to kexe

Fwd: Rational for having CONFIG_FB_RADEON=m

2016-10-01 Thread Mathieu Malaterre
Hi Ben, On Tue, Jun 14, 2016 at 1:15 PM, Benjamin Herrenschmidt wrote: > On Tue, 2016-06-14 at 13:26 +1000, Michael Ellerman wrote: >> On Mon, 2016-06-13 at 17:46 +0200, Mathieu Malaterre wrote: >> >> > 2. Try to fix `radeonfb` so that it is able to kick offb out of the >> > way. Eg: https://list

UBSAN: Undefined behaviour in /home/mathieu/tmp/linux-4.6.4/drivers/scsi/scsi_devinfo.c:458:21

2016-10-01 Thread Mathieu Malaterre
Hi, Anyone seen this before (PowerMac G4/MacMini): [1.397164] ata1.00: ATA-8: WDC WD800BEVE-00A0HT0, 11.01A11, max UDMA/100 [1.401313] ata1.00: 156301488 sectors, multi 16: LBA48 [1.405525] ata1.01: ATAPI: MATSHITADVD-R UJ-845C, DPP9, max UDMA/66 [1.414606] ata1.00: configured f

[PATCH] powerpc/eeh: Quieten EEH message when no adapters are found

2016-10-01 Thread Anton Blanchard
From: Anton Blanchard No real need for this to be pr_warn(), reduce it to pr_info(). Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/eeh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index c9bc78e..3f0ca80 100