Pull osi-now into release branch
authorLen Brown <len.brown@intel.com>
Sat, 2 Jun 2007 05:02:09 +0000 (01:02 -0400)
committerLen Brown <len.brown@intel.com>
Sat, 2 Jun 2007 05:02:09 +0000 (01:02 -0400)
Documentation/kernel-parameters.txt
drivers/acpi/osl.c
drivers/acpi/utilities/uteval.c
drivers/acpi/utilities/utxface.c
include/acpi/acpiosxf.h
include/acpi/acpixf.h

index ce91560229f5356e4c83c87fe98a1d94d827da94..5d0283cd3a81997fde0eaf901417ac0de33bf16b 100644 (file)
@@ -170,7 +170,10 @@ and is between 256 and 4096 characters. It is defined in the file
        acpi_os_name=   [HW,ACPI] Tell ACPI BIOS the name of the OS
                        Format: To spoof as Windows 98: ="Microsoft Windows"
 
-       acpi_osi=       [HW,ACPI] empty param disables _OSI
+       acpi_osi=       [HW,ACPI] Modify list of supported OS interface strings
+                       acpi_osi="string1"      # add string1 -- only one string
+                       acpi_osi="!string2"     # remove built-in string2
+                       acpi_osi=               # disable all strings
 
        acpi_serialize  [HW,ACPI] force serialization of AML methods
 
index b998340e23d4126074a36cc1af38d05461b4bde9..58ceb18ec997f7c16b62c1bba6035411a61450ab 100644 (file)
@@ -33,6 +33,7 @@
 #include <linux/interrupt.h>
 #include <linux/kmod.h>
 #include <linux/delay.h>
+#include <linux/dmi.h>
 #include <linux/workqueue.h>
 #include <linux/nmi.h>
 #include <linux/acpi.h>
@@ -73,6 +74,21 @@ static void *acpi_irq_context;
 static struct workqueue_struct *kacpid_wq;
 static struct workqueue_struct *kacpi_notify_wq;
 
+#define        OSI_STRING_LENGTH_MAX 64        /* arbitrary */
+static char osi_additional_string[OSI_STRING_LENGTH_MAX];
+
+#define OSI_LINUX_ENABLED
+#ifdef OSI_LINUX_ENABLED
+int osi_linux = 1;     /* enable _OSI(Linux) by default */
+#else
+int osi_linux;         /* disable _OSI(Linux) by default */
+#endif
+
+
+#ifdef CONFIG_DMI
+static struct __initdata dmi_system_id acpi_osl_dmi_table[];
+#endif
+
 static void __init acpi_request_region (struct acpi_generic_address *addr,
        unsigned int length, char *desc)
 {
@@ -121,8 +137,9 @@ static int __init acpi_reserve_resources(void)
 }
 device_initcall(acpi_reserve_resources);
 
-acpi_status acpi_os_initialize(void)
+acpi_status __init acpi_os_initialize(void)
 {
+       dmi_check_system(acpi_osl_dmi_table);
        return AE_OK;
 }
 
@@ -960,20 +977,38 @@ static int __init acpi_os_name_setup(char *str)
 
 __setup("acpi_os_name=", acpi_os_name_setup);
 
+static void enable_osi_linux(int enable) {
+
+       if (osi_linux != enable)
+               printk(KERN_INFO PREFIX "%sabled _OSI(Linux)\n",
+                       enable ? "En": "Dis");
+
+       osi_linux = enable;
+       return;
+}
+
 /*
- * _OSI control
+ * Modify the list of "OS Interfaces" reported to BIOS via _OSI
+ *
  * empty string disables _OSI
- * TBD additional string adds to _OSI
+ * string starting with '!' disables that string
+ * otherwise string is added to list, augmenting built-in strings
  */
 static int __init acpi_osi_setup(char *str)
 {
        if (str == NULL || *str == '\0') {
                printk(KERN_INFO PREFIX "_OSI method disabled\n");
                acpi_gbl_create_osi_method = FALSE;
-       } else {
-               /* TBD */
-               printk(KERN_ERR PREFIX "_OSI additional string ignored -- %s\n",
-                      str);
+       } else if (*str == '!') {
+               if (acpi_osi_invalidate(++str) == AE_OK)
+                       printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str);
+       } else if (!strcmp("!Linux", str)) {
+               enable_osi_linux(0);
+       } else if (!strcmp("Linux", str)) {
+               enable_osi_linux(1);
+       } else if (*osi_additional_string == '\0') {
+               strncpy(osi_additional_string, str, OSI_STRING_LENGTH_MAX);
+               printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str);
        }
 
        return 1;
@@ -1143,11 +1178,28 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
 acpi_status
 acpi_os_validate_interface (char *interface)
 {
-
-    return AE_SUPPORT;
+       if (!strncmp(osi_additional_string, interface, OSI_STRING_LENGTH_MAX))
+               return AE_OK;
+       if (!strcmp("Linux", interface)) {
+               printk(KERN_WARNING PREFIX
+                       "System BIOS is requesting _OSI(Linux)\n");
+#ifdef OSI_LINUX_ENABLED
+               printk(KERN_WARNING PREFIX
+                       "Please test with \"acpi_osi=!Linux\"\n"
+                       "Please send dmidecode "
+                       "to linux-acpi@vger.kernel.org\n");
+#else
+               printk(KERN_WARNING PREFIX
+                       "If \"acpi_osi=Linux\" works better,\n"
+                       "Please send dmidecode "
+                       "to linux-acpi@vger.kernel.org\n");
+#endif
+               if(osi_linux)
+                       return AE_OK;
+       }
+       return AE_SUPPORT;
 }
 
-
 /******************************************************************************
  *
  * FUNCTION:    acpi_os_validate_address
@@ -1174,5 +1226,51 @@ acpi_os_validate_address (
     return AE_OK;
 }
 
+#ifdef CONFIG_DMI
+#ifdef OSI_LINUX_ENABLED
+static int dmi_osi_not_linux(struct dmi_system_id *d)
+{
+       printk(KERN_NOTICE "%s detected: requires not _OSI(Linux)\n", d->ident);
+       enable_osi_linux(0);
+       return 0;
+}
+#else
+static int dmi_osi_linux(struct dmi_system_id *d)
+{
+       printk(KERN_NOTICE "%s detected: requires _OSI(Linux)\n", d->ident);
+       enable_osi_linux(1);
+       return 0;
+}
+#endif
+
+static struct dmi_system_id acpi_osl_dmi_table[] __initdata = {
+#ifdef OSI_LINUX_ENABLED
+       /*
+        * Boxes that need NOT _OSI(Linux)
+        */
+       {
+        .callback = dmi_osi_not_linux,
+        .ident = "Toshiba Satellite P100",
+        .matches = {
+                    DMI_MATCH(DMI_BOARD_VENDOR, "TOSHIBA"),
+                    DMI_MATCH(DMI_BOARD_NAME, "Satellite P100"),
+                    },
+        },
+#else
+       /*
+        * Boxes that need _OSI(Linux)
+        */
+       {
+        .callback = dmi_osi_linux,
+        .ident = "Intel Napa CRB",
+        .matches = {
+                    DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
+                    DMI_MATCH(DMI_BOARD_NAME, "MPAD-MSAE Customer Reference Boards"),
+                    },
+        },
+#endif
+       {}
+};
+#endif /* CONFIG_DMI */
 
 #endif
index 13d5879cd98b92148acb215ac411a8280b862090..8ec6f8e481385d2908f286249903d44db35cf184 100644 (file)
@@ -59,10 +59,9 @@ acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
 /*
  * Strings supported by the _OSI predefined (internal) method.
  */
-static const char *acpi_interfaces_supported[] = {
+static char *acpi_interfaces_supported[] = {
        /* Operating System Vendor Strings */
 
-       "Linux",
        "Windows 2000",
        "Windows 2001",
        "Windows 2001 SP0",
@@ -156,6 +155,31 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
        return_ACPI_STATUS(AE_CTRL_TERMINATE);
 }
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_osi_invalidate
+ *
+ * PARAMETERS:  interface_string
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: invalidate string in pre-defiend _OSI string list
+ *
+ ******************************************************************************/
+
+acpi_status acpi_osi_invalidate(char *interface)
+{
+       int i;
+
+       for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
+               if (!ACPI_STRCMP(interface, acpi_interfaces_supported[i])) {
+                       *acpi_interfaces_supported[i] = '\0';
+                       return AE_OK;
+               }
+       }
+       return AE_NOT_FOUND;
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_evaluate_object
index e9a57806cd34ecc32c1ab9d9881efabbeb96bfbc..2d496918b3cda4593d383b36cce08f18e2535253 100644 (file)
@@ -61,7 +61,7 @@ ACPI_MODULE_NAME("utxface")
  *              called, so any early initialization belongs here.
  *
  ******************************************************************************/
-acpi_status acpi_initialize_subsystem(void)
+acpi_status __init acpi_initialize_subsystem(void)
 {
        acpi_status status;
 
@@ -108,8 +108,6 @@ acpi_status acpi_initialize_subsystem(void)
        return_ACPI_STATUS(status);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_initialize_subsystem)
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enable_subsystem
index 5e07db0d46e9997752161028ed0e4e4dc26e2219..ca882b8e7d108e9d069ae053dd384e459bcec9a4 100644 (file)
@@ -78,7 +78,7 @@ struct acpi_signal_fatal_info {
 /*
  * OSL Initialization and shutdown primitives
  */
-acpi_status acpi_os_initialize(void);
+acpi_status __initdata acpi_os_initialize(void);
 
 acpi_status acpi_os_terminate(void);
 
@@ -236,6 +236,7 @@ acpi_os_derive_pci_id(acpi_handle rhandle,
  * Miscellaneous
  */
 acpi_status acpi_os_validate_interface(char *interface);
+acpi_status acpi_osi_invalidate(char* interface);
 
 acpi_status
 acpi_os_validate_address(u8 space_id,
index e08f7df85a4fdc2974e2c7e8ff7ba777e032f4dc..b5cca5daa348802e25426990f9e290db9d3621f9 100644 (file)
@@ -55,7 +55,7 @@ acpi_status
 acpi_initialize_tables(struct acpi_table_desc *initial_storage,
                       u32 initial_table_count, u8 allow_resize);
 
-acpi_status acpi_initialize_subsystem(void);
+acpi_status __init acpi_initialize_subsystem(void);
 
 acpi_status acpi_enable_subsystem(u32 flags);