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x86/uv: update SCIR driver to use the idle_cpu() function

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Impact: cleanup

Change UV heartbeat function to use idle_cpu to determine cpu's
"idleness".  Realign uv_hub definitions.

Signed-of-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Mike Travis 2008-10-27 07:51:20 -07:00 committed by Ingo Molnar
parent 7f1baa063e
commit 69a72a0e93
2 changed files with 15 additions and 15 deletions
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26
arch/x86/include/asm/uv/uv_hub.h
View File

@ -128,19 +128,19 @@ struct uv_scir_s {
* They are kept together in a struct to minimize cache misses.
*/
struct uv_hub_info_s {
unsigned long global_mmr_base;
unsigned long gpa_mask;
unsigned long gnode_upper;
unsigned long lowmem_remap_top;
unsigned long lowmem_remap_base;
unsigned short pnode;
unsigned short pnode_mask;
unsigned short coherency_domain_number;
unsigned short numa_blade_id;
unsigned char blade_processor_id;
unsigned char m_val;
unsigned char n_val;
struct uv_scir_s scir;
unsigned long global_mmr_base;
unsigned long gpa_mask;
unsigned long gnode_upper;
unsigned long lowmem_remap_top;
unsigned long lowmem_remap_base;
unsigned short pnode;
unsigned short pnode_mask;
unsigned short coherency_domain_number;
unsigned short numa_blade_id;
unsigned char blade_processor_id;
unsigned char m_val;
unsigned char n_val;
struct uv_scir_s scir;
};
DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);

4
arch/x86/kernel/genx2apic_uv_x.c
View File

@ -370,8 +370,8 @@ static void uv_heartbeat(unsigned long ignored)
/* flip heartbeat bit */
bits ^= SCIR_CPU_HEARTBEAT;
/* are we the idle thread? */
if (current->pid == 0)
/* is this cpu idle? */
if (idle_cpu(raw_smp_processor_id()))
bits &= ~SCIR_CPU_ACTIVITY;
else
bits |= SCIR_CPU_ACTIVITY;