Re: [PATCH 1/3] ARM: MM: Add the workaround of Errata 774769

2012-12-10 Thread Santosh Shilimkar
On Monday 10 December 2012 07:46 PM, Russell King - ARM Linux wrote: On Mon, Dec 10, 2012 at 07:40:06PM +0530, Santosh Shilimkar wrote: Whats the stand on such erratas ? I saw on one of thread one of you suggesting to stop patching kernel where secure/non-secure kernel will need different errata

Re: [PATCH 1/3] ARM: MM: Add the workaround of Errata 774769

2012-12-10 Thread Russell King - ARM Linux
On Mon, Dec 10, 2012 at 07:40:06PM +0530, Santosh Shilimkar wrote: > Whats the stand on such erratas ? I saw on one of thread one of > you suggesting to stop patching kernel where secure/non-secure > kernel will need different errata WA. Well, yes, there's that too. I think were we got to was dec

Re: [PATCH 1/3] ARM: MM: Add the workaround of Errata 774769

2012-12-10 Thread Santosh Shilimkar
On Monday 10 December 2012 05:28 AM, Boojin Kim wrote: This patch adds the workaround of Errata 774769 that configures write streaming on versions of A15 affected by this erratum such that no streaming-write ever allocates into the L2 cache. Signed-off-by: Boojin Kim --- arch/arm/Kconfig

RE: [PATCH 1/3] ARM: MM: Add the workaround of Errata 774769

2012-12-09 Thread Boojin Kim
Russell King - ARM Linux wrote: > > -3: mov r10, #0 > > + /* Cortex-A15 Errata */ > > +3: ldr r10, =0x0c0f@ Cortex-A15 primary part number > > + teq r0, r10 > > + bne 4f > > +#ifdef CONFIG_ARM_ERRATA_774769 > > There's not much point testing for the part n

Re: [PATCH 1/3] ARM: MM: Add the workaround of Errata 774769

2012-12-09 Thread Russell King - ARM Linux
On Mon, Dec 10, 2012 at 08:58:35AM +0900, Boojin Kim wrote: > > -3: mov r10, #0 > + /* Cortex-A15 Errata */ > +3: ldr r10, =0x0c0f@ Cortex-A15 primary part number > + teq r0, r10 > + bne 4f > +#ifdef CONFIG_ARM_ERRATA_774769 There's not much poi