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Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: uv2: Workaround for UV2 Hub bug (system global address format)
This commit is contained in:
Linus Torvalds
2011-10-28 05:43:56 -07:00
parent 5fd862f1db 6a469e4665
commit d630ba565f
4 changed files with 46 additions and 16 deletions
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7
arch/x86/kernel/apic/x2apic_uv_x.c
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@@ -820,6 +820,10 @@ void __init uv_system_init(void)
uv_cpu_hub_info(cpu)->apic_pnode_shift = uvh_apicid.s.pnode_shift;
uv_cpu_hub_info(cpu)->hub_revision = uv_hub_info->hub_revision;
uv_cpu_hub_info(cpu)->m_shift = 64 - m_val;
uv_cpu_hub_info(cpu)->n_lshift = is_uv2_1_hub() ?
(m_val == 40 ? 40 : 39) : m_val;
pnode = uv_apicid_to_pnode(apicid);
blade = boot_pnode_to_blade(pnode);
lcpu = uv_blade_info[blade].nr_possible_cpus;
@@ -850,8 +854,7 @@ void __init uv_system_init(void)
if (uv_node_to_blade[nid] >= 0)
continue;
paddr = node_start_pfn(nid) << PAGE_SHIFT;
paddr = uv_soc_phys_ram_to_gpa(paddr);
pnode = (paddr >> m_val) & pnode_mask;
pnode = uv_gpa_to_pnode(uv_soc_phys_ram_to_gpa(paddr));
blade = boot_pnode_to_blade(pnode);
uv_node_to_blade[nid] = blade;
}