[072/129] x86, UV: Update Boot messages for SGI UV2 platform

From: Greg KH
Date: Mon Jan 23 2012 - 21:56:26 EST


3.2-stable review patch. If anyone has any objections, please let me know.

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Content-Length: 1306
Lines: 38

From: Jack Steiner <steiner@xxxxxxx>

commit da517a08ac5913cd80ce3507cddd00f2a091b13c upstream.

SGI UV systems print a message during boot:

UV: Found <num> blades

Due to packaging changes, the blade count is not accurate for
on the next generation of the platform. This patch corrects the
count.

Signed-off-by: Jack Steiner <steiner@xxxxxxx>
Link: http://lkml.kernel.org/r/20120106191900.GA19772@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
arch/x86/kernel/apic/x2apic_uv_x.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -769,7 +769,12 @@ void __init uv_system_init(void)
for(i = 0; i < UVH_NODE_PRESENT_TABLE_DEPTH; i++)
uv_possible_blades +=
hweight64(uv_read_local_mmr( UVH_NODE_PRESENT_TABLE + i * 8));
- printk(KERN_DEBUG "UV: Found %d blades\n", uv_num_possible_blades());
+
+ /* uv_num_possible_blades() is really the hub count */
+ printk(KERN_INFO "UV: Found %d blades, %d hubs\n",
+ is_uv1_hub() ? uv_num_possible_blades() :
+ (uv_num_possible_blades() + 1) / 2,
+ uv_num_possible_blades());

bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades();
uv_blade_info = kzalloc(bytes, GFP_KERNEL);


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