6915564dc5
Modify acpi_os_map_generic_address() to return the pointer returned by acpi_os_map_iomem() which represents the logical address corresponding to the struct acpi_generic_address argument passed to it or NULL if that address cannot be obtained (for example, the argument does not represent an address in system memory or it could not be mapped by the OS). Among other things, that will allow the ACPI OS layer to pass the logical addresses of the FADT GPE blocks 0 and 1 to ACPICA going forward. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
28 lines
723 B
C
28 lines
723 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ACPI_IO_H_
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#define _ACPI_IO_H_
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#include <linux/io.h>
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#include <asm/acpi.h>
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#ifndef acpi_os_ioremap
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static inline void __iomem *acpi_os_ioremap(acpi_physical_address phys,
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acpi_size size)
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{
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return ioremap_cache(phys, size);
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}
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#endif
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extern bool acpi_permanent_mmap;
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void __iomem __ref
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*acpi_os_map_iomem(acpi_physical_address phys, acpi_size size);
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void __ref acpi_os_unmap_iomem(void __iomem *virt, acpi_size size);
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void __iomem *acpi_os_get_iomem(acpi_physical_address phys, unsigned int size);
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void __iomem *acpi_os_map_generic_address(struct acpi_generic_address *addr);
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void acpi_os_unmap_generic_address(struct acpi_generic_address *addr);
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#endif
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