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acpi, apei, ghes: Factor out ioremap virtual memory for IRQ and NMI context.

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GHES currently maps two pages with atomic_ioremap.  From now
on, NMI is architectural depended so there is no need to allocate
an NMI page for platforms without NMI support.

To make it possible to not use a second page, swap the existing
page order so that the IRQ context page is first, and the optional
NMI context page is second.  Then, use HAVE_ACPI_APEI_NMI to decide
how many pages are to be allocated.

Signed-off-by: Tomasz Nowicki <[email protected]>
Acked-by: Borislav Petkov <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
This commit is contained in:
Tomasz Nowicki 2014-07-22 11:20:13 +02:00 • committed by Tony Luck
commit 594c7255dc
3 changed files with 18 additions and 7 deletions
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1
include/acpi/apei.h
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@ -44,6 +44,7 @@ int erst_clear(u64 record_id);
int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data);
void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
void arch_apei_flush_tlb_one(unsigned long addr);
#endif
#endif