Linus,
Please pull the latest x86-uv-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-uv-for-linus
# HEAD: 3ab0c49fd6b1e80438d0a649584d292880112262 x86: UV BAU: Increase
maximum CPUs per socket/hub
Two small SGI/UV fixes.
Thanks,
Ingo
------------------>
James Custer (2):
x86: UV BAU: Avoid NULL pointer reference in ptc_seq_show
x86: UV BAU: Increase maximum CPUs per socket/hub
arch/x86/include/asm/uv/uv_bau.h | 4 ++--
arch/x86/platform/uv/tlb_uv.c | 4 ++++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h
index 2d60a7813dfe..fc808b83fccb 100644
--- a/arch/x86/include/asm/uv/uv_bau.h
+++ b/arch/x86/include/asm/uv/uv_bau.h
@@ -33,8 +33,8 @@
* Each of the descriptors is 64 bytes in size (8*64 = 512 bytes in a set).
*/
-#define MAX_CPUS_PER_UVHUB 64
-#define MAX_CPUS_PER_SOCKET 32
+#define MAX_CPUS_PER_UVHUB 128
+#define MAX_CPUS_PER_SOCKET 64
#define ADP_SZ 64 /* hardware-provided max. */
#define UV_CPUS_PER_AS 32 /* hardware-provided max. */
#define ITEMS_PER_DESC 8
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 3968d67d366b..570b1b14375b 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1384,6 +1384,10 @@ static int ptc_seq_show(struct seq_file *file, void
*data)
}
if (cpu < num_possible_cpus() && cpu_online(cpu)) {
bcp = &per_cpu(bau_control, cpu);
+ if (bcp->nobau) {
+ seq_printf(file, "cpu %d bau disabled\n", cpu);
+ return 0;
+ }
stat = bcp->statp;
/* source side statistics */
seq_printf(file,
--
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