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x86/platform/UV: Create per cpu info structs to replace per hub info structs

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The major portion of the hub info is common to all cpus on that hub.
This is step one of moving the per cpu hub info to a per node hub info
struct.  This patch creates the small per cpu info struct that will
contain only information specific to each CPU.

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/20160429215404.282265563@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Mike Travis
2016-04-29 16:54:12 -05:00
committed by Ingo Molnar
parent a2f28e6950
commit 0045ddd23f
2 changed files with 25 additions and 9 deletions
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15
arch/x86/kernel/apic/x2apic_uv_x.c
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@@ -231,6 +231,9 @@ EXPORT_SYMBOL_GPL(is_uv_system);
DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info);
DEFINE_PER_CPU(struct uv_cpu_info_s, __uv_cpu_info);
EXPORT_PER_CPU_SYMBOL_GPL(__uv_cpu_info);
struct uv_blade_info *uv_blade_info;
EXPORT_SYMBOL_GPL(uv_blade_info);
@@ -990,11 +993,10 @@ void __init uv_system_init(void)
hweight64(uv_read_local_mmr( UVH_NODE_PRESENT_TABLE + i * 8));
/* uv_num_possible_blades() is really the hub count */
pr_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());
pr_info("UV: Found %d hubs, %d nodes, %d cpus\n",
uv_num_possible_blades(),
num_possible_nodes(),
num_possible_cpus());
bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades();
uv_blade_info = kzalloc(bytes, GFP_KERNEL);
@@ -1057,6 +1059,9 @@ void __init uv_system_init(void)
uv_cpu_hub_info(cpu)->blade_processor_id = lcpu;
uv_node_to_blade[nodeid] = blade;
uv_cpu_to_blade[cpu] = blade;
/* Initialize per cpu info list */
uv_cpu_info_per(cpu)->p_uv_hub_info = uv_cpu_hub_info(cpu);
}
/* Add blade/pnode info for nodes without cpus */