diff options
Diffstat (limited to 'drivers/acpi/osl.c')
| -rw-r--r-- | drivers/acpi/osl.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 7ccba395c9dd..c262e4acd68d 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -175,11 +175,7 @@ static void __init acpi_request_region (struct acpi_generic_address *gas, if (!addr || !length) return; - /* Resources are never freed */ - if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) - request_region(addr, length, desc); - else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) - request_mem_region(addr, length, desc); + acpi_reserve_region(addr, length, gas->space_id, 0, desc); } static void __init acpi_reserve_resources(void) @@ -534,13 +530,26 @@ acpi_os_get_physical_address(void *virt, acpi_physical_address * phys) } #endif +#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE +static bool acpi_rev_override; + +int __init acpi_rev_override_setup(char *str) +{ + acpi_rev_override = true; + return 1; +} +__setup("acpi_rev_override", acpi_rev_override_setup); +#else +#define acpi_rev_override false +#endif + #define ACPI_MAX_OVERRIDE_LEN 100 static char acpi_os_name[ACPI_MAX_OVERRIDE_LEN]; acpi_status acpi_os_predefined_override(const struct acpi_predefined_names *init_val, - acpi_string * new_val) + char **new_val) { if (!init_val || !new_val) return AE_BAD_PARAMETER; @@ -552,6 +561,11 @@ acpi_os_predefined_override(const struct acpi_predefined_names *init_val, *new_val = acpi_os_name; } + if (!memcmp(init_val->name, "_REV", 4) && acpi_rev_override) { + printk(KERN_INFO PREFIX "Overriding _REV return value to 5\n"); + *new_val = (char *)5; + } + return AE_OK; } @@ -1684,6 +1698,12 @@ int acpi_resources_are_enforced(void) } EXPORT_SYMBOL(acpi_resources_are_enforced); +bool acpi_osi_is_win8(void) +{ + return acpi_gbl_osi_data >= ACPI_OSI_WIN_8; +} +EXPORT_SYMBOL(acpi_osi_is_win8); + /* * Deallocate the memory for a spinlock. */ |
