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x86/platform/UV: Update MMIOH setup function to work for both UV3 and UV4
author
Mike Travis
<travis@sgi.com>
Fri, 29 Apr 2016 21:54:11 +0000
(16:54 -0500)
committer
Ingo Molnar
<mingo@kernel.org>
Wed, 4 May 2016 06:48:48 +0000
(08:48 +0200)
Since UV3 and UV4 MMIOH regions are setup the same, we can use a common
function to setup both.
Tested-by: John Estabrook <estabrook@sgi.com>
Tested-by: Gary Kroening <gfk@sgi.com>
Tested-by: Nathan Zimmer <nzimmer@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Cc: Andrew Banman <abanman@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@sgi.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link:
http://lkml.kernel.org/r/20160429215404.100504077@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/kernel/apic/x2apic_uv_x.c
patch
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diff --git
a/arch/x86/kernel/apic/x2apic_uv_x.c
b/arch/x86/kernel/apic/x2apic_uv_x.c
index
db5d980
..
4ca87b9
100644
(file)
--- a/
arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/
arch/x86/kernel/apic/x2apic_uv_x.c
@@
-608,6
+608,7
@@
static __initdata struct mmioh_config mmiohs[] = {
},
};
+/* UV3 & UV4 have identical MMIOH overlay configs */
static __init void map_mmioh_high_uv3(int index, int min_pnode, int max_pnode)
{
union uv3h_rh_gam_mmioh_overlay_config0_mmr_u overlay;
@@
-687,7
+688,7
@@
static __init void map_mmioh_high(int min_pnode, int max_pnode)
unsigned long mmr, base;
int shift, enable, m_io, n_io;
- if (is_uv3_hub()) {
+ if (is_uv3_hub()
|| is_uv4_hub()
) {
/* Map both MMIOH Regions */
map_mmioh_high_uv3(0, min_pnode, max_pnode);
map_mmioh_high_uv3(1, min_pnode, max_pnode);