diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/osl.c | 54 |
1 files changed, 11 insertions, 43 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index fc8a3bce6cb..13b5fd5854a 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -180,22 +180,14 @@ acpi_status acpi_os_map_memory(acpi_physical_address phys, acpi_size size, void __iomem ** virt) { - if (efi_enabled) { - if (EFI_MEMORY_WB & efi_mem_attributes(phys)) { - *virt = (void __iomem *)phys_to_virt(phys); - } else { - *virt = ioremap(phys, size); - } - } else { - if (phys > ULONG_MAX) { - printk(KERN_ERR PREFIX "Cannot map memory that high\n"); - return AE_BAD_PARAMETER; - } - /* - * ioremap checks to ensure this is in reserved space - */ - *virt = ioremap((unsigned long)phys, size); + if (phys > ULONG_MAX) { + printk(KERN_ERR PREFIX "Cannot map memory that high\n"); + return AE_BAD_PARAMETER; } + /* + * ioremap checks to ensure this is in reserved space + */ + *virt = ioremap((unsigned long)phys, size); if (!*virt) return AE_NO_MEMORY; @@ -407,18 +399,8 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) { u32 dummy; void __iomem *virt_addr; - int iomem = 0; - if (efi_enabled) { - if (EFI_MEMORY_WB & efi_mem_attributes(phys_addr)) { - /* HACK ALERT! We can use readb/w/l on real memory too.. */ - virt_addr = (void __iomem *)phys_to_virt(phys_addr); - } else { - iomem = 1; - virt_addr = ioremap(phys_addr, width); - } - } else - virt_addr = (void __iomem *)phys_to_virt(phys_addr); + virt_addr = ioremap(phys_addr, width); if (!value) value = &dummy; @@ -436,10 +418,7 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) BUG(); } - if (efi_enabled) { - if (iomem) - iounmap(virt_addr); - } + iounmap(virt_addr); return AE_OK; } @@ -448,18 +427,8 @@ acpi_status acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) { void __iomem *virt_addr; - int iomem = 0; - if (efi_enabled) { - if (EFI_MEMORY_WB & efi_mem_attributes(phys_addr)) { - /* HACK ALERT! We can use writeb/w/l on real memory too */ - virt_addr = (void __iomem *)phys_to_virt(phys_addr); - } else { - iomem = 1; - virt_addr = ioremap(phys_addr, width); - } - } else - virt_addr = (void __iomem *)phys_to_virt(phys_addr); + virt_addr = ioremap(phys_addr, width); switch (width) { case 8: @@ -475,8 +444,7 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) BUG(); } - if (iomem) - iounmap(virt_addr); + iounmap(virt_addr); return AE_OK; } |