On Thu, Dec 02, 2010 at 06:01:50PM +, Russell King - ARM Linux wrote:
On Thu, Dec 02, 2010 at 05:38:24PM +, Russell King - ARM Linux wrote:
What if a platform, for what ever reason, wants to have 3 CPUs,
numbered 0, 2, 3 ? That's the reason why the code which sets the
possible and
On 1 December 2010 00:25, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
On Tue, Nov 30, 2010 at 11:32:04PM +, Russell King - ARM Linux wrote:
Note that I'll go with factoring this out into arch/arm/kernel/smp_scu.c
for the time being, but I'm not convinced about the other parts
On Thu, Dec 02, 2010 at 03:19:05PM +, Catalin Marinas wrote:
On 1 December 2010 00:25, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
On Tue, Nov 30, 2010 at 11:32:04PM +, Russell King - ARM Linux wrote:
Note that I'll go with factoring this out into arch/arm/kernel/smp_scu.c
On Thu, 2010-12-02 at 15:24 +, Russell King - ARM Linux wrote:
On Thu, Dec 02, 2010 at 03:19:05PM +, Catalin Marinas wrote:
On 1 December 2010 00:25, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
On Tue, Nov 30, 2010 at 11:32:04PM +, Russell King - ARM Linux wrote:
On Thu, Dec 02, 2010 at 04:28:40PM +, Catalin Marinas wrote:
The SCU is part of the core TRM, so I don't expect it to be the same
across various MP cores (and A15 is an example).
You may want to consolidate functions like scu_prepare_cpus (maybe call
it smp_prepare_cpus)
You do realise
On Thu, 2010-12-02 at 17:38 +, Russell King - ARM Linux wrote:
On Thu, Dec 02, 2010 at 04:28:40PM +, Catalin Marinas wrote:
The SCU is part of the core TRM, so I don't expect it to be the same
across various MP cores (and A15 is an example).
You may want to consolidate functions
On Thu, Dec 02, 2010 at 05:38:24PM +, Russell King - ARM Linux wrote:
What if a platform, for what ever reason, wants to have 3 CPUs,
numbered 0, 2, 3 ? That's the reason why the code which sets the
possible and present maps isn't in the ARM core code - Eg, we don't
know if a platform
For CNS3xxx we want to reuse the original ARM approach of booting
secondary CPUs. This patch factors out VExpress' code into a common
file, so that now platform code can call these routines.
Note that this patch doesn't convert VExpress platform to the
generic routines. Plus, there are also a lot
On Tue, Nov 30, 2010 at 08:16:58PM +0300, Anton Vorontsov wrote:
For CNS3xxx we want to reuse the original ARM approach of booting
secondary CPUs. This patch factors out VExpress' code into a common
file, so that now platform code can call these routines.
Note that this patch doesn't convert
On Tue, Nov 30, 2010 at 08:16:58PM +0300, Anton Vorontsov wrote:
+/*
+ * Initialise the CPU possible map early - this describes the CPUs
+ * which may be present or become present in the system.
+ */
+void __init scu_init_cpus(void __iomem *scu_base)
+{
+ unsigned int ncores = scu_base
On Tue, Nov 30, 2010 at 11:32:04PM +, Russell King - ARM Linux wrote:
Note that I'll go with factoring this out into arch/arm/kernel/smp_scu.c
for the time being, but I'm not convinced about the other parts yet.
IOW, something like the attached. I've gone a little further and removed
the
On Wed, Dec 1, 2010 at 5:02 AM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
On Tue, Nov 30, 2010 at 08:16:58PM +0300, Anton Vorontsov wrote:
[...]
+ sub r4, r4, r5
+ add r6, r6, r4
+#if __LINUX_ARM_ARCH__ = 7
+ dsb
+#endif
Another question though - probably
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