Merge remote-tracking branch 'origin/x86/boot' into x86/mm2

Coming patches to x86/mm2 require the changes and advanced baseline in
x86/boot.

Resolved Conflicts:
	arch/x86/kernel/setup.c
	mm/nobootmem.c

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

7 files changed, 103 insertions, 27 deletions

diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index 4c61b52191eb..f8ab4945892e 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -21,12 +21,25 @@
 #include <asm/i8259.h>
 #include <asm/io.h>
 #include <asm/io_apic.h>
+#include <asm/emergency-restart.h>
 
 static int ce4100_i8042_detect(void)
 {
         return 0;
 }
 
+/*
+ * The CE4100 platform has an internal 8051 Microcontroller which is
+ * responsible for signaling to the external Power Management Unit the
+ * intention to reset, reboot or power off the system. This 8051 device has
+ * its command register mapped at I/O port 0xcf9 and the value 0x4 is used
+ * to power off the system.
+ */
+static void ce4100_power_off(void)
+{
+        outb(0x4, 0xcf9);
+}
+
 #ifdef CONFIG_SERIAL_8250
 
 static unsigned int mem_serial_in(struct uart_port *p, int offset)
@@ -92,8 +105,11 @@ static void ce4100_serial_fixup(int port, struct uart_port *up,
                 up->membase =
                         (void __iomem *)__fix_to_virt(FIX_EARLYCON_MEM_BASE);
                 up->membase += up->mapbase & ~PAGE_MASK;
+                up->mapbase += port * 0x100;
+                up->membase += port * 0x100;
                 up->iotype   = UPIO_MEM32;
                 up->regshift = 2;
+                up->irq = 4;
         }
 #endif
         up->iobase = 0;
@@ -139,8 +155,19 @@ void __init x86_ce4100_early_setup(void)
         x86_init.mpparse.find_smp_config = x86_init_noop;
         x86_init.pci.init = ce4100_pci_init;
 
+        /*
+         * By default, the reboot method is ACPI which is supported by the
+         * CE4100 bootloader CEFDK using FADT.ResetReg Address and ResetValue
+         * the bootloader will however issue a system power off instead of
+         * reboot. By using BOOT_KBD we ensure proper system reboot as
+         * expected.
+         */
+        reboot_type = BOOT_KBD;
+
 #ifdef CONFIG_X86_IO_APIC
         x86_init.pci.init_irq = sdv_pci_init;
         x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck;
 #endif
+
+        pm_power_off = ce4100_power_off;
 }
diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c
index f6a0c1b8e518..d9c1b95af17c 100644
--- a/arch/x86/platform/efi/efi-bgrt.c
+++ b/arch/x86/platform/efi/efi-bgrt.c
@@ -39,6 +39,8 @@ void efi_bgrt_init(void)
         if (ACPI_FAILURE(status))
                 return;
 
+        if (bgrt_tab->header.length < sizeof(*bgrt_tab))
+                return;
         if (bgrt_tab->version != 1)
                 return;
         if (bgrt_tab->image_type != 0 || !bgrt_tab->image_address)
diff --git a/arch/x86/platform/iris/iris.c b/arch/x86/platform/iris/iris.c
index 5917eb56b313..e6cb80f620af 100644
--- a/arch/x86/platform/iris/iris.c
+++ b/arch/x86/platform/iris/iris.c
@@ -23,6 +23,7 @@
 
 #include <linux/moduleparam.h>
 #include <linux/module.h>
+#include <linux/platform_device.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/delay.h>
@@ -62,29 +63,75 @@ static void iris_power_off(void)
  * by reading its input port and seeing whether the read value is
  * meaningful.
  */
-static int iris_init(void)
+static int iris_probe(struct platform_device *pdev)
 {
-        unsigned char status;
-        if (force != 1) {
-                printk(KERN_ERR "The force parameter has not been set to 1 so the Iris poweroff handler will not be installed.\n");
-                return -ENODEV;
-        }
-        status = inb(IRIS_GIO_INPUT);
+        unsigned char status = inb(IRIS_GIO_INPUT);
         if (status == IRIS_GIO_NODEV) {
-                printk(KERN_ERR "This machine does not seem to be an Iris. Power_off handler not installed.\n");
+                printk(KERN_ERR "This machine does not seem to be an Iris. "
+                        "Power off handler not installed.\n");
                 return -ENODEV;
         }
         old_pm_power_off = pm_power_off;
         pm_power_off = &iris_power_off;
         printk(KERN_INFO "Iris power_off handler installed.\n");
-
         return 0;
 }
 
-static void iris_exit(void)
+static int iris_remove(struct platform_device *pdev)
 {
         pm_power_off = old_pm_power_off;
         printk(KERN_INFO "Iris power_off handler uninstalled.\n");
+        return 0;
+}
+
+static struct platform_driver iris_driver = {
+        .driver         = {
+                .name   = "iris",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = iris_probe,
+        .remove         = iris_remove,
+};
+
+static struct resource iris_resources[] = {
+        {
+                .start  = IRIS_GIO_BASE,
+                .end    = IRIS_GIO_OUTPUT,
+                .flags  = IORESOURCE_IO,
+                .name   = "address"
+        }
+};
+
+static struct platform_device *iris_device;
+
+static int iris_init(void)
+{
+        int ret;
+        if (force != 1) {
+                printk(KERN_ERR "The force parameter has not been set to 1."
+                        " The Iris poweroff handler will not be installed.\n");
+                return -ENODEV;
+        }
+        ret = platform_driver_register(&iris_driver);
+        if (ret < 0) {
+                printk(KERN_ERR "Failed to register iris platform driver: %d\n",
+                        ret);
+                return ret;
+        }
+        iris_device = platform_device_register_simple("iris", (-1),
+                                iris_resources, ARRAY_SIZE(iris_resources));
+        if (IS_ERR(iris_device)) {
+                printk(KERN_ERR "Failed to register iris platform device\n");
+                platform_driver_unregister(&iris_driver);
+                return PTR_ERR(iris_device);
+        }
+        return 0;
+}
+
+static void iris_exit(void)
+{
+        platform_device_unregister(iris_device);
+        platform_driver_unregister(&iris_driver);
 }
 
 module_init(iris_init);
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index fd41a9262d65..e31bcd8f2eee 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -782,7 +782,7 @@ BLOCKING_NOTIFIER_HEAD(intel_scu_notifier);
 EXPORT_SYMBOL_GPL(intel_scu_notifier);
 
 /* Called by IPC driver */
-void __devinit intel_scu_devices_create(void)
+void intel_scu_devices_create(void)
 {
         int i;
 
diff --git a/arch/x86/platform/olpc/olpc-xo1-pm.c b/arch/x86/platform/olpc/olpc-xo1-pm.c
index d75582d1aa55..ff0174dda810 100644
--- a/arch/x86/platform/olpc/olpc-xo1-pm.c
+++ b/arch/x86/platform/olpc/olpc-xo1-pm.c
@@ -121,7 +121,7 @@ static const struct platform_suspend_ops xo1_suspend_ops = {
         .enter = xo1_power_state_enter,
 };
 
-static int __devinit xo1_pm_probe(struct platform_device *pdev)
+static int xo1_pm_probe(struct platform_device *pdev)
 {
         struct resource *res;
         int err;
@@ -154,7 +154,7 @@ static int __devinit xo1_pm_probe(struct platform_device *pdev)
         return 0;
 }
 
-static int __devexit xo1_pm_remove(struct platform_device *pdev)
+static int xo1_pm_remove(struct platform_device *pdev)
 {
         mfd_cell_disable(pdev);
 
@@ -173,7 +173,7 @@ static struct platform_driver cs5535_pms_driver = {
                 .owner = THIS_MODULE,
         },
         .probe = xo1_pm_probe,
-        .remove = __devexit_p(xo1_pm_remove),
+        .remove = xo1_pm_remove,
 };
 
 static struct platform_driver cs5535_acpi_driver = {
@@ -182,7 +182,7 @@ static struct platform_driver cs5535_acpi_driver = {
                 .owner = THIS_MODULE,
         },
         .probe = xo1_pm_probe,
-        .remove = __devexit_p(xo1_pm_remove),
+        .remove = xo1_pm_remove,
 };
 
 static int __init xo1_pm_init(void)
diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c
index 63d4aa40956e..74704be7b1fe 100644
--- a/arch/x86/platform/olpc/olpc-xo1-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo1-sci.c
@@ -309,7 +309,7 @@ static int xo1_sci_resume(struct platform_device *pdev)
         return 0;
 }
 
-static int __devinit setup_sci_interrupt(struct platform_device *pdev)
+static int setup_sci_interrupt(struct platform_device *pdev)
 {
         u32 lo, hi;
         u32 sts;
@@ -351,7 +351,7 @@ static int __devinit setup_sci_interrupt(struct platform_device *pdev)
         return r;
 }
 
-static int __devinit setup_ec_sci(void)
+static int setup_ec_sci(void)
 {
         int r;
 
@@ -395,7 +395,7 @@ static void free_ec_sci(void)
         gpio_free(OLPC_GPIO_ECSCI);
 }
 
-static int __devinit setup_lid_events(void)
+static int setup_lid_events(void)
 {
         int r;
 
@@ -432,7 +432,7 @@ static void free_lid_events(void)
         gpio_free(OLPC_GPIO_LID);
 }
 
-static int __devinit setup_power_button(struct platform_device *pdev)
+static int setup_power_button(struct platform_device *pdev)
 {
         int r;
 
@@ -463,7 +463,7 @@ static void free_power_button(void)
         input_free_device(power_button_idev);
 }
 
-static int __devinit setup_ebook_switch(struct platform_device *pdev)
+static int setup_ebook_switch(struct platform_device *pdev)
 {
         int r;
 
@@ -494,7 +494,7 @@ static void free_ebook_switch(void)
         input_free_device(ebook_switch_idev);
 }
 
-static int __devinit setup_lid_switch(struct platform_device *pdev)
+static int setup_lid_switch(struct platform_device *pdev)
 {
         int r;
 
@@ -538,7 +538,7 @@ static void free_lid_switch(void)
         input_free_device(lid_switch_idev);
 }
 
-static int __devinit xo1_sci_probe(struct platform_device *pdev)
+static int xo1_sci_probe(struct platform_device *pdev)
 {
         struct resource *res;
         int r;
@@ -613,7 +613,7 @@ err_ebook:
         return r;
 }
 
-static int __devexit xo1_sci_remove(struct platform_device *pdev)
+static int xo1_sci_remove(struct platform_device *pdev)
 {
         mfd_cell_disable(pdev);
         free_irq(sci_irq, pdev);
@@ -632,7 +632,7 @@ static struct platform_driver xo1_sci_driver = {
                 .name = "olpc-xo1-sci-acpi",
         },
         .probe = xo1_sci_probe,
-        .remove = __devexit_p(xo1_sci_remove),
+        .remove = xo1_sci_remove,
         .suspend = xo1_sci_suspend,
         .resume = xo1_sci_resume,
 };
diff --git a/arch/x86/platform/scx200/scx200_32.c b/arch/x86/platform/scx200/scx200_32.c
index 7a9ad30d6c9f..3dc9aee41d91 100644
--- a/arch/x86/platform/scx200/scx200_32.c
+++ b/arch/x86/platform/scx200/scx200_32.c
@@ -35,7 +35,7 @@ static struct pci_device_id scx200_tbl[] = {
 };
 MODULE_DEVICE_TABLE(pci,scx200_tbl);
 
-static int __devinit scx200_probe(struct pci_dev *, const struct pci_device_id *);
+static int scx200_probe(struct pci_dev *, const struct pci_device_id *);
 
 static struct pci_driver scx200_pci_driver = {
         .name = "scx200",
@@ -45,7 +45,7 @@ static struct pci_driver scx200_pci_driver = {
 
 static DEFINE_MUTEX(scx200_gpio_config_lock);
 
-static void __devinit scx200_init_shadow(void)
+static void scx200_init_shadow(void)
 {
         int bank;
 
@@ -54,7 +54,7 @@ static void __devinit scx200_init_shadow(void)
                 scx200_gpio_shadow[bank] = inl(scx200_gpio_base + 0x10 * bank);
 }
 
-static int __devinit scx200_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int scx200_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
         unsigned base;