Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches from Greg Kroah-Hartman:
 "Here is the big driver core merge for 3.9-rc1

  There are two major series here, both of which touch lots of drivers
  all over the kernel, and will cause you some merge conflicts:

   - add a new function called devm_ioremap_resource() to properly be
     able to check return values.

   - remove CONFIG_EXPERIMENTAL

  Other than those patches, there's not much here, some minor fixes and
  updates"

Fix up trivial conflicts

* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
  base: memory: fix soft/hard_offline_page permissions
  drivercore: Fix ordering between deferred_probe and exiting initcalls
  backlight: fix class_find_device() arguments
  TTY: mark tty_get_device call with the proper const values
  driver-core: constify data for class_find_device()
  firmware: Ignore abort check when no user-helper is used
  firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
  firmware: Make user-mode helper optional
  firmware: Refactoring for splitting user-mode helper code
  Driver core: treat unregistered bus_types as having no devices
  watchdog: Convert to devm_ioremap_resource()
  thermal: Convert to devm_ioremap_resource()
  spi: Convert to devm_ioremap_resource()
  power: Convert to devm_ioremap_resource()
  mtd: Convert to devm_ioremap_resource()
  mmc: Convert to devm_ioremap_resource()
  mfd: Convert to devm_ioremap_resource()
  media: Convert to devm_ioremap_resource()
  iommu: Convert to devm_ioremap_resource()
  drm: Convert to devm_ioremap_resource()
  ...

36 files changed, 104 insertions, 139 deletions

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 9b504af2e966..775361f67bfd 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -555,8 +555,7 @@ config NR_CPUS
           with working support have a maximum of 4 CPUs.
 
 config ARCH_DISCONTIGMEM_ENABLE
-        bool "Discontiguous Memory Support (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
+        bool "Discontiguous Memory Support"
         help
           Say Y to support efficient handling of discontiguous physical memory,
           for architectures which are either NUMA (Non-Uniform Memory Access)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2f66b2e42490..f410cb16dd22 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1530,7 +1530,6 @@ config SMP
 
 config SMP_ON_UP
         bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
         depends on SMP && !XIP_KERNEL
         default y
         help
@@ -1731,7 +1730,7 @@ config AEABI
 
 config OABI_COMPAT
         bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
-        depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
+        depends on AEABI && !THUMB2_KERNEL
         default y
         help
           This option preserves the old syscall interface along with the
@@ -1855,7 +1854,6 @@ config SECCOMP
 
 config CC_STACKPROTECTOR
         bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
         help
           This option turns on the -fstack-protector GCC feature. This
           feature puts, at the beginning of functions, a canary value on
@@ -1872,7 +1870,7 @@ config XEN_DOM0
 
 config XEN
         bool "Xen guest support on ARM (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && ARM && OF
+        depends on ARM && OF
         depends on CPU_V7 && !CPU_V6
         help
           Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
@@ -1941,7 +1939,7 @@ config ZBOOT_ROM
 
 choice
         prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
-        depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
+        depends on ZBOOT_ROM && ARCH_SH7372
         default ZBOOT_ROM_NONE
         help
           Include experimental SD/MMC loading code in the ROM-able zImage.
@@ -1970,7 +1968,7 @@ endchoice
 
 config ARM_APPENDED_DTB
         bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
-        depends on OF && !ZBOOT_ROM && EXPERIMENTAL
+        depends on OF && !ZBOOT_ROM
         help
           With this option, the boot code will look for a device tree binary
           (DTB) appended to zImage
@@ -2088,7 +2086,7 @@ config XIP_PHYS_ADDR
 
 config KEXEC
         bool "Kexec system call (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
+        depends on (!SMP || HOTPLUG_CPU)
         help
           kexec is a system call that implements the ability to shutdown your
           current kernel, and to start another kernel.  It is like a reboot
@@ -2110,7 +2108,6 @@ config ATAGS_PROC
 
 config CRASH_DUMP
         bool "Build kdump crash kernel (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
         help
           Generate crash dump after being started by kexec. This should
           be normally only set in special crash dump kernels which are
@@ -2177,7 +2174,7 @@ config CPU_FREQ_S3C
 
 config CPU_FREQ_S3C24XX
         bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
-        depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
+        depends on ARCH_S3C24XX && CPU_FREQ
         select CPU_FREQ_S3C
         help
           This enables the CPUfreq driver for the Samsung S3C24XX family
@@ -2189,7 +2186,7 @@ config CPU_FREQ_S3C24XX
 
 config CPU_FREQ_S3C24XX_PLL
         bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
-        depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
+        depends on CPU_FREQ_S3C24XX
         help
           Compile in support for changing the PLL frequency from the
           S3C24XX series CPUfreq driver. The PLL takes time to settle
@@ -2252,7 +2249,7 @@ config FPE_NWFPE_XP
 
 config FPE_FASTFPE
         bool "FastFPE math emulation (EXPERIMENTAL)"
-        depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
+        depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
         ---help---
           Say Y here to include the FAST floating point emulator in the kernel.
           This is an experimental much faster emulator which now also has full
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 661030d6bc6c..fc2a591e1676 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -32,7 +32,7 @@ config FRAME_POINTER
 
 config ARM_UNWIND
         bool "Enable stack unwinding support (EXPERIMENTAL)"
-        depends on AEABI && EXPERIMENTAL
+        depends on AEABI
         default y
         help
           This option enables stack unwinding support in the kernel
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 8033cb747c86..64bac53da0e8 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1134,11 +1134,9 @@ static int gpmc_probe(struct platform_device *pdev)
         phys_base = res->start;
         mem_size = resource_size(res);
 
-        gpmc_base = devm_request_and_ioremap(&pdev->dev, res);
-        if (!gpmc_base) {
-                dev_err(&pdev->dev, "error: request memory / ioremap\n");
-                return -EADDRNOTAVAIL;
-        }
+        gpmc_base = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(gpmc_base))
+                return PTR_ERR(gpmc_base);
 
         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (res == NULL)
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 25df14a9e268..3445c4f42347 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -291,8 +291,8 @@ config MACH_JIVE
           Say Y here if you are using the Logitech Jive.
 
 config MACH_JIVE_SHOW_BOOTLOADER
-        bool "Allow access to bootloader partitions in MTD (EXPERIMENTAL)"
-        depends on MACH_JIVE && EXPERIMENTAL
+        bool "Allow access to bootloader partitions in MTD"
+        depends on MACH_JIVE
 
 config MACH_S3C2413
         bool
diff --git a/arch/arm/mach-tegra/tegra2_emc.c b/arch/arm/mach-tegra/tegra2_emc.c
index e18aa2f83ebf..ce7ce42a1ac9 100644
--- a/arch/arm/mach-tegra/tegra2_emc.c
+++ b/arch/arm/mach-tegra/tegra2_emc.c
@@ -312,11 +312,9 @@ static int tegra_emc_probe(struct platform_device *pdev)
                 return -ENOMEM;
         }
 
-        emc_regbase = devm_request_and_ioremap(&pdev->dev, res);
-        if (!emc_regbase) {
-                dev_err(&pdev->dev, "failed to remap registers\n");
-                return -ENOMEM;
-        }
+        emc_regbase = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(emc_regbase))
+                return PTR_ERR(emc_regbase);
 
         pdata = pdev->dev.platform_data;
 
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 7b433f3bddca..a0daa2fb5de6 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -808,11 +808,9 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
                 return  -ENOMEM;
         }
 
-        timer->io_base = devm_request_and_ioremap(dev, mem);
-        if (!timer->io_base) {
-                dev_err(dev, "%s: region already claimed.\n", __func__);
-                return -ENOMEM;
-        }
+        timer->io_base = devm_ioremap_resource(dev, mem);
+        if (IS_ERR(timer->io_base))
+                return PTR_ERR(timer->io_base);
 
         if (dev->of_node) {
                 if (of_find_property(dev->of_node, "ti,timer-alwon", NULL))
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c
index 2d676ab50f73..ca07cb1b155a 100644
--- a/arch/arm/plat-samsung/adc.c
+++ b/arch/arm/plat-samsung/adc.c
@@ -386,11 +386,9 @@ static int s3c_adc_probe(struct platform_device *pdev)
                 return -ENXIO;
         }
 
-        adc->regs = devm_request_and_ioremap(dev, regs);
-        if (!adc->regs) {
-                dev_err(dev, "failed to map registers\n");
-                return -ENXIO;
-        }
+        adc->regs = devm_ioremap_resource(dev, regs);
+        if (IS_ERR(adc->regs))
+                return PTR_ERR(adc->regs);
 
         ret = regulator_enable(adc->vdd);
         if (ret)
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 67e4aaad78f5..e98f3248c8aa 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -560,8 +560,7 @@ choice
           accurate - This option is therefore marked experimental.
 
 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
-        bool "Calculate Timings (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
+        bool "Calculate Timings"
 
 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
         bool "Provide accurate Timings based on target SCLK"
@@ -1118,7 +1117,7 @@ endchoice
 
 comment "Memory Protection Unit"
 config MPU
-        bool "Enable the memory protection unit (EXPERIMENTAL)"
+        bool "Enable the memory protection unit"
         default n
         help
           Use the processor's MPU to protect applications from accessing
@@ -1440,7 +1439,6 @@ config BFIN_CPU_FREQ
 
 config CPU_VOLTAGE
         bool "CPU Voltage scaling"
-        depends on EXPERIMENTAL
         depends on CPU_FREQ
         default n
         help
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index de43aadcdbc4..af4a486dadcd 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -680,7 +680,7 @@ config ETRAX_SPI_MMC_BOARD
 
 config SPI_ETRAX_SSER
         tristate
-        depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+        depends on SPI_MASTER && ETRAX_ARCH_V32
         select SPI_BITBANG
         help
           This enables using an synchronous serial (sser) port as a
@@ -689,7 +689,7 @@ config SPI_ETRAX_SSER
 
 config SPI_ETRAX_GPIO
         tristate
-        depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+        depends on SPI_MASTER && ETRAX_ARCH_V32
         select SPI_BITBANG
         help
           This enables using GPIO pins port as a SPI master controller
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 00c2e88f7755..c1b80fb6938d 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -374,8 +374,8 @@ config NR_CPUS
           performance hit.
 
 config HOTPLUG_CPU
-        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-        depends on SMP && EXPERIMENTAL
+        bool "Support for hot-pluggable CPUs"
+        depends on SMP
         select HOTPLUG
         default n
         ---help---
@@ -554,8 +554,8 @@ config IA64_HP_AML_NFW
 source "drivers/sn/Kconfig"
 
 config KEXEC
-        bool "kexec system call (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
+        bool "kexec system call"
+        depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
         help
           kexec is a system call that implements the ability to shutdown your
           current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig
index e7947528aee6..2cd225f8c68d 100644
--- a/arch/ia64/kvm/Kconfig
+++ b/arch/ia64/kvm/Kconfig
@@ -20,7 +20,7 @@ if VIRTUALIZATION
 config KVM
         tristate "Kernel-based Virtual Machine (KVM) support"
         depends on BROKEN
-        depends on HAVE_KVM && MODULES && EXPERIMENTAL
+        depends on HAVE_KVM && MODULES
         # for device assignment:
         depends on PCI
         depends on BROKEN
diff --git a/arch/ia64/xen/Kconfig b/arch/ia64/xen/Kconfig
index 515e0826803a..5d8a06b0ddf7 100644
--- a/arch/ia64/xen/Kconfig
+++ b/arch/ia64/xen/Kconfig
@@ -5,7 +5,7 @@
 config XEN
         bool "Xen hypervisor support"
         default y
-        depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB && EXPERIMENTAL
+        depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB
         select XEN_XENCOMM
         select NO_IDLE_HZ
         # followings are required to save/restore.
diff --git a/arch/microblaze/platform/Kconfig.platform b/arch/microblaze/platform/Kconfig.platform
index 669c7eec293e..b1747211b8b1 100644
--- a/arch/microblaze/platform/Kconfig.platform
+++ b/arch/microblaze/platform/Kconfig.platform
@@ -20,7 +20,7 @@ endchoice
 
 config SELFMOD
         bool "Use self modified code for intc/timer"
-        depends on EXPERIMENTAL && NO_MMU
+        depends on NO_MMU
         default n
         help
           This choice enables self-modified code for interrupt controller
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 9becc44d9d7a..5d7170bfeb28 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -169,7 +169,7 @@ config MACH_DECSTATION
         select SYS_HAS_CPU_R3000
         select SYS_HAS_CPU_R4X00
         select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+        select SYS_SUPPORTS_64BIT_KERNEL
         select SYS_SUPPORTS_LITTLE_ENDIAN
         select SYS_SUPPORTS_128HZ
         select SYS_SUPPORTS_256HZ
@@ -205,7 +205,7 @@ config MACH_JAZZ
         select ISA
         select SYS_HAS_CPU_R4X00
         select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+        select SYS_SUPPORTS_64BIT_KERNEL
         select SYS_SUPPORTS_100HZ
         help
          This a family of machines based on the MIPS R4030 chipset which was
@@ -395,7 +395,6 @@ config PNX8550_STB810
 
 config PMC_MSP
         bool "PMC-Sierra MSP chipsets"
-        depends on EXPERIMENTAL
         select CEVT_R4K
         select CSRC_R4K
         select DMA_NONCOHERENT
@@ -494,8 +493,7 @@ config SGI_IP27
           here.
 
 config SGI_IP28
-        bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
+        bool "SGI IP28 (Indigo2 R10k)"
         select FW_ARC
         select FW_ARC64
         select BOOT_ELF64
@@ -553,7 +551,6 @@ config SGI_IP32
 
 config SIBYTE_CRHINE
         bool "Sibyte BCM91120C-CRhine"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
         select SIBYTE_BCM1120
@@ -564,7 +561,6 @@ config SIBYTE_CRHINE
 
 config SIBYTE_CARMEL
         bool "Sibyte BCM91120x-Carmel"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
         select SIBYTE_BCM1120
@@ -575,7 +571,6 @@ config SIBYTE_CARMEL
 
 config SIBYTE_CRHONE
         bool "Sibyte BCM91125C-CRhone"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
         select SIBYTE_BCM1125
@@ -587,7 +582,6 @@ config SIBYTE_CRHONE
 
 config SIBYTE_RHONE
         bool "Sibyte BCM91125E-Rhone"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
         select SIBYTE_BCM1125H
@@ -612,7 +606,6 @@ config SIBYTE_SWARM
 
 config SIBYTE_LITTLESUR
         bool "Sibyte BCM91250C2-LittleSur"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
         select HAVE_PATA_PLATFORM
@@ -626,7 +619,6 @@ config SIBYTE_LITTLESUR
 
 config SIBYTE_SENTOSA
         bool "Sibyte BCM91250E-Sentosa"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select DMA_COHERENT
         select NR_CPUS_DEFAULT_2
@@ -675,7 +667,7 @@ config SNI_RM
         select R5000_CPU_SCACHE
         select SYS_HAS_EARLY_PRINTK
         select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+        select SYS_SUPPORTS_64BIT_KERNEL
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_HIGHMEM
         select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -779,7 +771,6 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
 
 config NLM_XLR_BOARD
         bool "Netlogic XLR/XLS based systems"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select NLM_COMMON
         select SYS_HAS_CPU_XLR
@@ -808,7 +799,6 @@ config NLM_XLR_BOARD
 
 config NLM_XLP_BOARD
         bool "Netlogic XLP based systems"
-        depends on EXPERIMENTAL
         select BOOT_ELF32
         select NLM_COMMON
         select SYS_HAS_CPU_XLP
@@ -1374,7 +1364,6 @@ config CPU_R5500
 
 config CPU_R6000
         bool "R6000"
-        depends on EXPERIMENTAL
         depends on SYS_HAS_CPU_R6000
         select CPU_SUPPORTS_32BIT_KERNEL
         help
@@ -1392,7 +1381,6 @@ config CPU_NEVADA
 
 config CPU_R8000
         bool "R8000"
-        depends on EXPERIMENTAL
         depends on SYS_HAS_CPU_R8000
         select CPU_HAS_PREFETCH
         select CPU_SUPPORTS_64BIT_KERNEL
@@ -1767,7 +1755,7 @@ config PAGE_SIZE_4KB
 
 config PAGE_SIZE_8KB
         bool "8kB"
-        depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
+        depends on CPU_R8000 || CPU_CAVIUM_OCTEON
         help
           Using 8kB page size will result in higher performance kernel at
           the price of higher memory consumption.  This option is available
@@ -1794,7 +1782,7 @@ config PAGE_SIZE_32KB
 
 config PAGE_SIZE_64KB
         bool "64kB"
-        depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
+        depends on !CPU_R3000 && !CPU_TX39XX
         help
           Using 64kB page size will result in higher performance kernel at
           the price of higher memory consumption.  This option is available on
@@ -2310,8 +2298,7 @@ config HZ
 source "kernel/Kconfig.preempt"
 
 config KEXEC
-        bool "Kexec system call (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
+        bool "Kexec system call"
         help
           kexec is a system call that implements the ability to shutdown your
           current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/mips/jazz/Kconfig b/arch/mips/jazz/Kconfig
index 1f372b0d2559..fb1e072da30b 100644
--- a/arch/mips/jazz/Kconfig
+++ b/arch/mips/jazz/Kconfig
@@ -1,6 +1,6 @@
 config ACER_PICA_61
-        bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
-        depends on MACH_JAZZ && EXPERIMENTAL
+        bool "Support for Acer PICA 1 chipset"
+        depends on MACH_JAZZ
         select DMA_NONCOHERENT
         select SYS_SUPPORTS_LITTLE_ENDIAN
         help
@@ -13,7 +13,7 @@ config MIPS_MAGNUM_4000
         bool "Support for MIPS Magnum 4000"
         depends on MACH_JAZZ
         select DMA_NONCOHERENT
-        select SYS_SUPPORTS_BIG_ENDIAN if EXPERIMENTAL
+        select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_LITTLE_ENDIAN
         help
           This is a machine with a R4000 100 MHz CPU. To compile a Linux
diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index e44a1866653f..08f7ebd9c774 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -21,6 +21,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/clk.h>
+#include <linux/err.h>
 
 #include <lantiq_soc.h>
 #include <xway_dma.h>
@@ -223,8 +224,8 @@ ltq_dma_init(struct platform_device *pdev)
                 panic("Failed to get dma resource");
 
         /* remap dma register range */
-        ltq_dma_membase = devm_request_and_ioremap(&pdev->dev, res);
-        if (!ltq_dma_membase)
+        ltq_dma_membase = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(ltq_dma_membase))
                 panic("Failed to remap dma resource");
 
         /* power up and reset the dma engine */
diff --git a/arch/mips/lantiq/xway/gptu.c b/arch/mips/lantiq/xway/gptu.c
index e30b1ed1b936..9861c8669fab 100644
--- a/arch/mips/lantiq/xway/gptu.c
+++ b/arch/mips/lantiq/xway/gptu.c
@@ -150,11 +150,9 @@ static int gptu_probe(struct platform_device *pdev)
         }
 
         /* remap gptu register range */
-        gptu_membase = devm_request_and_ioremap(&pdev->dev, res);
-        if (!gptu_membase) {
-                dev_err(&pdev->dev, "Failed to remap resource\n");
-                return -ENOMEM;
-        }
+        gptu_membase = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(gptu_membase))
+                return PTR_ERR(gptu_membase);
 
         /* enable our clock */
         clk = clk_get(&pdev->dev, NULL);
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index 95681789b51e..910fb4c20b9e 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -214,13 +214,13 @@ static int ltq_pci_probe(struct platform_device *pdev)
                 return -EINVAL;
         }
 
-        ltq_pci_membase = devm_request_and_ioremap(&pdev->dev, res_bridge);
-        ltq_pci_mapped_cfg = devm_request_and_ioremap(&pdev->dev, res_cfg);
+        ltq_pci_membase = devm_ioremap_resource(&pdev->dev, res_bridge);
+        if (IS_ERR(ltq_pci_membase))
+                return PTR_ERR(ltq_pci_membase);
 
-        if (!ltq_pci_membase || !ltq_pci_mapped_cfg) {
-                dev_err(&pdev->dev, "failed to remap resources\n");
-                return -ENOMEM;
-        }
+        ltq_pci_mapped_cfg = devm_ioremap_resource(&pdev->dev, res_cfg);
+        if (IS_ERR(ltq_pci_mapped_cfg))
+                return PTR_ERR(ltq_pci_mapped_cfg);
 
         ltq_pci_startup(pdev);
 
diff --git a/arch/mips/sgi-ip27/Kconfig b/arch/mips/sgi-ip27/Kconfig
index 4b2ea282b9c7..4d8705a65e4a 100644
--- a/arch/mips/sgi-ip27/Kconfig
+++ b/arch/mips/sgi-ip27/Kconfig
@@ -13,7 +13,6 @@ config SGI_SN_M_MODE
 
 config SGI_SN_N_MODE
         bool "IP27 N-Mode"
-        depends on EXPERIMENTAL
         help
           The nodes of Origin, Onyx, Fuel and Tezro systems can be configured
           in either N-Modes which allows for more nodes or M-Mode which allows
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index a32e34ecda9e..9f2820659da2 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -192,12 +192,12 @@ config PARISC_PAGE_SIZE_4KB
           If you don't know what to do, choose 4KB.
 
 config PARISC_PAGE_SIZE_16KB
-        bool "16KB (EXPERIMENTAL)"
-        depends on PA8X00 && EXPERIMENTAL
+        bool "16KB"
+        depends on PA8X00
 
 config PARISC_PAGE_SIZE_64KB
-        bool "64KB (EXPERIMENTAL)"
-        depends on PA8X00 && EXPERIMENTAL
+        bool "64KB"
+        depends on PA8X00
 
 endchoice
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 561ccca7b1a7..e7fb8edb629b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -332,7 +332,7 @@ config SWIOTLB
 
 config HOTPLUG_CPU
         bool "Support for enabling/disabling CPUs"
-        depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || \
+        depends on SMP && HOTPLUG && (PPC_PSERIES || \
         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
         ---help---
           Say Y here to be able to disable and re-enable individual
@@ -354,8 +354,8 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
         def_bool y
 
 config KEXEC
-        bool "kexec system call (EXPERIMENTAL)"
-        depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) && EXPERIMENTAL
+        bool "kexec system call"
+        depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
         help
           kexec is a system call that implements the ability to shutdown your
           current kernel, and to start another kernel.  It is like a reboot
@@ -850,8 +850,8 @@ config LOWMEM_CAM_NUM
         default 3
 
 config DYNAMIC_MEMSTART
-        bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
+        bool "Enable page aligned dynamic load address for kernel"
+        depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
         select NONSTATIC_KERNEL
         help
           This option enables the kernel to be loaded at any page aligned
@@ -868,8 +868,8 @@ config DYNAMIC_MEMSTART
           This option is overridden by CONFIG_RELOCATABLE
 
 config RELOCATABLE
-        bool "Build a relocatable kernel (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
+        bool "Build a relocatable kernel"
+        depends on ADVANCED_OPTIONS && FLATMEM && 44x
         select NONSTATIC_KERNEL
         help
           This builds a kernel image that is capable of running at the
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 4730c953f435..63c67ec72e43 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -41,7 +41,7 @@ config KVM_BOOK3S_PR
 
 config KVM_BOOK3S_32
         tristate "KVM support for PowerPC book3s_32 processors"
-        depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT
+        depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
         select KVM
         select KVM_BOOK3S_32_HANDLER
         select KVM_BOOK3S_PR
@@ -56,7 +56,7 @@ config KVM_BOOK3S_32
 
 config KVM_BOOK3S_64
         tristate "KVM support for PowerPC book3s_64 processors"
-        depends on EXPERIMENTAL && PPC_BOOK3S_64
+        depends on PPC_BOOK3S_64
         select KVM_BOOK3S_64_HANDLER
         select KVM
         ---help---
@@ -97,7 +97,7 @@ config KVM_BOOKE_HV
 
 config KVM_440
         bool "KVM support for PowerPC 440 processors"
-        depends on EXPERIMENTAL && 44x
+        depends on 44x
         select KVM
         select KVM_MMIO
         ---help---
@@ -122,7 +122,7 @@ config KVM_EXIT_TIMING
 
 config KVM_E500V2
         bool "KVM support for PowerPC E500v2 processors"
-        depends on EXPERIMENTAL && E500 && !PPC_E500MC
+        depends on E500 && !PPC_E500MC
         select KVM
         select KVM_MMIO
         select MMU_NOTIFIER
@@ -137,7 +137,7 @@ config KVM_E500V2
 
 config KVM_E500MC
         bool "KVM support for PowerPC E500MC/E5500 processors"
-        depends on EXPERIMENTAL && PPC_E500MC
+        depends on PPC_E500MC
         select KVM
         select KVM_MMIO
         select KVM_BOOKE_HV
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 02d02a09942d..92ab60a62711 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -277,7 +277,6 @@ config P5040_DS
 
 config PPC_QEMU_E500
         bool "QEMU generic e500 platform"
-        depends on EXPERIMENTAL
         select DEFAULT_UIMAGE
         help
           This option enables support for running as a QEMU guest using
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 2e7ff0c5cf42..53aaefeb3386 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -124,7 +124,7 @@ config CBE_CPUFREQ
 
 config CBE_CPUFREQ_PMI_ENABLE
         bool "CBE frequency scaling using PMI interface"
-        depends on CBE_CPUFREQ && EXPERIMENTAL
+        depends on CBE_CPUFREQ
         default n
         help
           Select this, if you want to use the PMI interface
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index 46b7f0232523..e87c19473973 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -48,7 +48,7 @@ config PS3_HTAB_SIZE
           system will have optimal runtime performance.
 
 config PS3_DYNAMIC_DMA
-        depends on PPC_PS3 && EXPERIMENTAL
+        depends on PPC_PS3
         bool "PS3 Platform dynamic DMA page table management"
         default n
         help
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c15ba7d1be64..27c91c38d1a1 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -717,8 +717,8 @@ source "arch/s390/kvm/Kconfig"
 
 config S390_GUEST
         def_bool y
-        prompt "s390 support for virtio devices (EXPERIMENTAL)"
-        depends on 64BIT && EXPERIMENTAL
+        prompt "s390 support for virtio devices"
+        depends on 64BIT
         select VIRTUALIZATION
         select VIRTIO
         select VIRTIO_CONSOLE
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index b58dd869cb32..60f9f8ae0fc8 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -18,7 +18,7 @@ if VIRTUALIZATION
 config KVM
         def_tristate y
         prompt "Kernel-based Virtual Machine (KVM) support"
-        depends on HAVE_KVM && EXPERIMENTAL
+        depends on HAVE_KVM
         select PREEMPT_NOTIFIERS
         select ANON_INODES
         select HAVE_KVM_CPU_RELAX_INTERCEPT
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9c833c585871..87f720037ff7 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -644,7 +644,7 @@ source kernel/Kconfig.hz
 
 config KEXEC
         bool "kexec system call (EXPERIMENTAL)"
-        depends on SUPERH32 && EXPERIMENTAL && MMU
+        depends on SUPERH32 && MMU
         help
           kexec is a system call that implements the ability to shutdown your
           current kernel, and to start another kernel.  It is like a reboot
@@ -661,7 +661,7 @@ config KEXEC
 
 config CRASH_DUMP
         bool "kernel crash dumps (EXPERIMENTAL)"
-        depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
+        depends on SUPERH32 && BROKEN_ON_SMP
         help
           Generate crash dump after being started by kexec.
           This should be normally only set in special crash dump kernels
@@ -675,7 +675,7 @@ config CRASH_DUMP
 
 config KEXEC_JUMP
         bool "kexec jump (EXPERIMENTAL)"
-        depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
+        depends on SUPERH32 && KEXEC && HIBERNATION
         help
           Jump between original kernel and kexeced kernel and invoke
           code via KEXEC
@@ -709,7 +709,7 @@ config SECCOMP
 
 config CC_STACKPROTECTOR
         bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-        depends on SUPERH32 && EXPERIMENTAL
+        depends on SUPERH32
         help
           This option turns on the -fstack-protector GCC feature. This
           feature puts, at the beginning of functions, a canary value on
@@ -760,7 +760,7 @@ config NR_CPUS
 
 config HOTPLUG_CPU
         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-        depends on SMP && HOTPLUG && EXPERIMENTAL
+        depends on SMP && HOTPLUG
         help
           Say Y here to experiment with turning CPUs off and on.  CPUs
           can be controlled through /sys/devices/system/cpu.
@@ -839,7 +839,7 @@ config ENTRY_OFFSET
 
 config ROMIMAGE_MMCIF
         bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
-        depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
+        depends on CPU_SUBTYPE_SH7724
         help
           Say Y here to include experimental MMCIF loading code in
           romImage. With this enabled it is possible to write the romImage
@@ -925,7 +925,6 @@ source "fs/Kconfig.binfmt"
 endmenu
 
 menu "Power management options (EXPERIMENTAL)"
-depends on EXPERIMENTAL
 
 source "kernel/power/Kconfig"
 
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
index 770ff2d5b94d..05b518e90cf7 100644
--- a/arch/sh/Kconfig.cpu
+++ b/arch/sh/Kconfig.cpu
@@ -33,7 +33,7 @@ config SH64_FPU_DENORM_FLUSH
 config SH_FPU_EMU
         def_bool n
         prompt "FPU emulation support"
-        depends on !SH_FPU && EXPERIMENTAL
+        depends on !SH_FPU
         help
           Selecting this option will enable support for software FPU emulation.
           Most SH-3 users will want to say Y here, whereas most SH-4 users will
@@ -68,7 +68,6 @@ config SH_STORE_QUEUES
 
 config SPECULATIVE_EXECUTION
         bool "Speculative subroutine return"
-        depends on EXPERIMENTAL
         depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7786
         help
           This enables support for a speculative instruction fetch for
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 0f7c852f355c..5a43a871e097 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -83,7 +83,7 @@ config 32BIT
 
 config PMB
         bool "Support 32-bit physical addressing through PMB"
-        depends on MMU && EXPERIMENTAL && CPU_SH4A && !CPU_SH4AL_DSP
+        depends on MMU && CPU_SH4A && !CPU_SH4AL_DSP
         select 32BIT
         select UNCACHED_MAPPING
         help
@@ -110,7 +110,7 @@ config VSYSCALL
 
 config NUMA
         bool "Non Uniform Memory Access (NUMA) Support"
-        depends on MMU && SYS_SUPPORTS_NUMA && EXPERIMENTAL
+        depends on MMU && SYS_SUPPORTS_NUMA
         select ARCH_WANT_NUMA_VARIABLE_LOCALITY
         default n
         help
diff --git a/arch/tile/kvm/Kconfig b/arch/tile/kvm/Kconfig
index 669fcdba31ea..2298cb1daff7 100644
--- a/arch/tile/kvm/Kconfig
+++ b/arch/tile/kvm/Kconfig
@@ -18,7 +18,7 @@ if VIRTUALIZATION
 
 config KVM
         tristate "Kernel-based Virtual Machine (KVM) support"
-        depends on HAVE_KVM && MODULES && EXPERIMENTAL
+        depends on HAVE_KVM && MODULES
         select PREEMPT_NOTIFIERS
         select ANON_INODES
         ---help---
diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net
index 3160b1a5adb7..820a56f00332 100644
--- a/arch/um/Kconfig.net
+++ b/arch/um/Kconfig.net
@@ -157,7 +157,7 @@ config UML_NET_MCAST
 
 config UML_NET_PCAP
         bool "pcap transport"
-        depends on UML_NET && EXPERIMENTAL
+        depends on UML_NET
         help
         The pcap transport makes a pcap packet stream on the host look
         like an ethernet device inside UML.  This is useful for making
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index bf87f25eb2de..a7520c90f62d 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -45,8 +45,8 @@ config HOSTFS
           say Y or M here; otherwise say N.
 
 config HPPFS
-        tristate "HoneyPot ProcFS (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && PROC_FS
+        tristate "HoneyPot ProcFS"
+        depends on PROC_FS
         help
           hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
           entries to be overridden, removed, or fabricated from the host.
@@ -96,7 +96,7 @@ config MAGIC_SYSRQ
           unless you really know what this hack does.
 
 config SMP
-        bool "Symmetric multi-processing support (EXPERIMENTAL)"
+        bool "Symmetric multi-processing support"
         default n
         depends on BROKEN
         help
@@ -126,7 +126,7 @@ config NR_CPUS
         default "32"
 
 config HIGHMEM
-        bool "Highmem support (EXPERIMENTAL)"
+        bool "Highmem support"
         depends on !64BIT && BROKEN
         default n
         help
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f7a27fdb5098..63c0431daa3a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -225,7 +225,7 @@ config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 
 config HAVE_INTEL_TXT
         def_bool y
-        depends on EXPERIMENTAL && INTEL_IOMMU && ACPI
+        depends on INTEL_IOMMU && ACPI
 
 config X86_32_SMP
         def_bool y
@@ -642,7 +642,7 @@ config PARAVIRT
 
 config PARAVIRT_SPINLOCKS
         bool "Paravirtualization layer for spinlocks"
-        depends on PARAVIRT && SMP && EXPERIMENTAL
+        depends on PARAVIRT && SMP
         ---help---
           Paravirtualized spinlocks allow a pvops backend to replace the
           spinlock implementation with something virtualization-friendly
@@ -754,7 +754,7 @@ config GART_IOMMU
 config CALGARY_IOMMU
         bool "IBM Calgary IOMMU support"
         select SWIOTLB
-        depends on X86_64 && PCI && EXPERIMENTAL
+        depends on X86_64 && PCI
         ---help---
           Support for hardware IOMMUs in IBM's xSeries x366 and x460
           systems. Needed to run systems with more than 3GB of memory
@@ -796,7 +796,7 @@ config IOMMU_HELPER
 
 config MAXSMP
         bool "Enable Maximum number of SMP Processors and NUMA Nodes"
-        depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
+        depends on X86_64 && SMP && DEBUG_KERNEL
         select CPUMASK_OFFSTACK
         ---help---
           Enable maximum number of CPUS and NUMA Nodes for this architecture.
@@ -1132,7 +1132,6 @@ config HIGHMEM64G
 endchoice
 
 choice
-        depends on EXPERIMENTAL
         prompt "Memory split" if EXPERT
         default VMSPLIT_3G
         depends on X86_32
@@ -1209,7 +1208,7 @@ config DIRECT_GBPAGES
 config NUMA
         bool "Numa Memory Allocation and Scheduler Support"
         depends on SMP
-        depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
+        depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI))
         default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
         ---help---
           Enable NUMA (Non Uniform Memory Access) support.
@@ -1304,7 +1303,7 @@ config ARCH_DISCONTIGMEM_DEFAULT
 
 config ARCH_SPARSEMEM_ENABLE
         def_bool y
-        depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD
+        depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
         select SPARSEMEM_STATIC if X86_32
         select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
@@ -1618,8 +1617,7 @@ config CRASH_DUMP
           For more details see Documentation/kdump/kdump.txt
 
 config KEXEC_JUMP
-        bool "kexec jump (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
+        bool "kexec jump"
         depends on KEXEC && HIBERNATION
         ---help---
           Jump between original kernel and kexeced kernel and invoke
@@ -2063,7 +2061,7 @@ config PCI_MMCONFIG
 
 config PCI_CNB20LE_QUIRK
         bool "Read CNB20LE Host Bridge Windows" if EXPERT
-        depends on PCI && EXPERIMENTAL
+        depends on PCI
         help
           Read the PCI windows out of the CNB20LE host bridge. This allows
           PCI hotplug to work on systems with the CNB20LE chipset which do
@@ -2267,8 +2265,8 @@ config IA32_AOUT
           Support old a.out binaries in the 32bit emulation.
 
 config X86_X32
-        bool "x32 ABI for 64-bit mode (EXPERIMENTAL)"
-        depends on X86_64 && IA32_EMULATION && EXPERIMENTAL
+        bool "x32 ABI for 64-bit mode"
+        depends on X86_64 && IA32_EMULATION
         ---help---
           Include code to run binaries for the x32 native 32-bit ABI
           for 64-bit processors.  An x32 process gets access to the
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 53c90fd412d1..21a13ce1d751 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -37,9 +37,8 @@ config RWSEM_GENERIC_SPINLOCK
         def_bool !RWSEM_XCHGADD_ALGORITHM
 
 config 3_LEVEL_PGTABLES
-        bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
+        bool "Three-level pagetables" if !64BIT
         default 64BIT
-        depends on EXPERIMENTAL
         help
         Three-level pagetables will let UML have more than 4G of physical
         memory.  All the memory that can't be mapped directly will be treated