diff options
| author | Jack Steiner <steiner@sgi.com> | 2009-07-27 09:35:07 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-04 16:18:01 +0200 |
| commit | 6c7184b77464261b7d55583a48accbd1350923a3 (patch) | |
| tree | 122e6b8d88cb4df1518ae2ea13841691de091bb2 /arch/x86/kernel/apic | |
| parent | f1f029c7bfbf4ee1918b90a431ab823bed812504 (diff) | |
| download | kernel_samsung_espresso10-6c7184b77464261b7d55583a48accbd1350923a3.zip kernel_samsung_espresso10-6c7184b77464261b7d55583a48accbd1350923a3.tar.gz kernel_samsung_espresso10-6c7184b77464261b7d55583a48accbd1350923a3.tar.bz2 | |
x86, UV: Handle missing blade-local memory correctly
UV blades may not have any blade-local memory. Add a field
(nid) to the UV blade structure to indicates whether the node
has local memory. This is needed by the GRU driver (pushed
separately).
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
LKML-Reference: <20090727143507.GA7006@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/apic')
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 096d19a..ad3f0a9 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -591,6 +591,8 @@ void __init uv_system_init(void) bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades(); uv_blade_info = kmalloc(bytes, GFP_KERNEL); BUG_ON(!uv_blade_info); + for (blade = 0; blade < uv_num_possible_blades(); blade++) + uv_blade_info[blade].memory_nid = -1; get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size); @@ -629,6 +631,9 @@ void __init uv_system_init(void) lcpu = uv_blade_info[blade].nr_possible_cpus; uv_blade_info[blade].nr_possible_cpus++; + /* Any node on the blade, else will contain -1. */ + uv_blade_info[blade].memory_nid = nid; + uv_cpu_hub_info(cpu)->lowmem_remap_base = lowmem_redir_base; uv_cpu_hub_info(cpu)->lowmem_remap_top = lowmem_redir_size; uv_cpu_hub_info(cpu)->m_val = m_val; |