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Lines 35-40
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#include <asm/irq.h> |
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#include <asm/irq.h> |
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#include <asm/mpspec.h> |
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#include <asm/mpspec.h> |
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#include <linux/acpi.h> |
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#ifdef CONFIG_X86_64 |
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#ifdef CONFIG_X86_64 |
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static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id) { } |
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static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id) { } |
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Lines 438-464
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return 0; |
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return 0; |
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} |
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} |
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static unsigned long __init |
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acpi_scan_rsdp ( |
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unsigned long start, |
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unsigned long length) |
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{ |
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unsigned long offset = 0; |
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unsigned long sig_len = sizeof("RSD PTR ") - 1; |
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/* |
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* Scan all 16-byte boundaries of the physical memory region for the |
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* RSDP signature. |
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*/ |
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for (offset = 0; offset < length; offset += 16) { |
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if (strncmp((char *) (start + offset), "RSD PTR ", sig_len)) |
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continue; |
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return (start + offset); |
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} |
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return 0; |
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} |
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static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) |
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static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size) |
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{ |
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{ |
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struct acpi_table_sbf *sb; |
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struct acpi_table_sbf *sb; |
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Lines 563-584
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acpi_find_rsdp (void) |
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acpi_find_rsdp (void) |
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{ |
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{ |
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unsigned long rsdp_phys = 0; |
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unsigned long rsdp_phys = 0; |
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struct acpi_pointer rsdp_address; |
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if (efi_enabled) { |
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acpi_status result; |
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if (efi.acpi20) |
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return __pa(efi.acpi20); |
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result = acpi_os_get_root_pointer(ACPI_PHYSICAL_ADDRESSING,&rsdp_address); |
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else if (efi.acpi) |
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if (ACPI_FAILURE(result)){ |
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return __pa(efi.acpi); |
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return result; |
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} |
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} |
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/* |
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* Scan memory looking for the RSDP signature. First search EBDA (low |
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* memory) paragraphs and then search upper memory (E0000-FFFFF). |
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*/ |
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rsdp_phys = acpi_scan_rsdp (0, 0x400); |
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if (!rsdp_phys) |
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rsdp_phys = acpi_scan_rsdp (0xE0000, 0xFFFFF); |
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rsdp_phys = (unsigned long)rsdp_address.pointer.physical; |
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if (!rsdp_phys) |
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return 0; |
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return rsdp_phys; |
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return rsdp_phys; |
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} |
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} |
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#ifdef CONFIG_X86_LOCAL_APIC |
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#ifdef CONFIG_X86_LOCAL_APIC |