From: Greg Kroah-Hartman <[email protected]>
Introduce the Kconfig entry and actually switch to a 64bit value, if
wanted, for resource_size_t.
Based on a patch series originally from Vivek Goyal <[email protected]>
Cc: Vivek Goyal <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/arm/Kconfig | 7 +++++++
arch/arm26/Kconfig | 7 +++++++
arch/cris/Kconfig | 7 +++++++
arch/frv/Kconfig | 7 +++++++
arch/i386/Kconfig | 7 +++++++
arch/m32r/Kconfig | 7 +++++++
arch/m68k/Kconfig | 7 +++++++
arch/m68knommu/Kconfig | 7 +++++++
arch/mips/Kconfig | 8 ++++++++
arch/parisc/Kconfig | 8 ++++++++
arch/powerpc/Kconfig | 8 ++++++++
arch/ppc/Kconfig | 7 +++++++
arch/s390/Kconfig | 8 ++++++++
arch/sh/Kconfig | 7 +++++++
arch/sparc/Kconfig | 7 +++++++
arch/v850/Kconfig | 7 +++++++
arch/xtensa/Kconfig | 7 +++++++
include/linux/types.h | 7 ++++++-
kernel/resource.c | 11 ++++++++++-
19 files changed, 139 insertions(+), 2 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 08b7cc9..9248a69 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -518,6 +518,13 @@ config NODES_SHIFT
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
config LEDS
bool "Timer and CPU usage LEDs"
depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
diff --git a/arch/arm26/Kconfig b/arch/arm26/Kconfig
index cf4ebf4..919f745 100644
--- a/arch/arm26/Kconfig
+++ b/arch/arm26/Kconfig
@@ -187,6 +187,13 @@ config CMDLINE
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
endmenu
source "net/Kconfig"
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 856b665..91c0d3a 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -80,6 +80,13 @@ config PREEMPT
source mm/Kconfig
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
endmenu
menu "Hardware setup"
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 95a3892..f929b05 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -80,6 +80,13 @@ config HIGHPTE
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
choice
prompt "uClinux kernel load address"
depends on !MMU
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 8dfa305..34542cb 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -754,6 +754,13 @@ config PHYSICAL_START
Don't change this unless you know what you are doing.
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && !X86_PAE
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 41fd490..24d6a1d 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -188,6 +188,13 @@ config ARCH_DISCONTIGMEM_ENABLE
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
config IRAM_START
hex "Internal memory start address (hex)"
default "00f00000" if !CHIP_M32104
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 805b81f..22dcaa5 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -368,6 +368,13 @@ config 060_WRITETHROUGH
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
endmenu
menu "General setup"
diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
index 3cde682..e71fbe7 100644
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68knommu/Kconfig
@@ -605,6 +605,13 @@ endchoice
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
endmenu
config ISA_DMA_API
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e8ff09f..cf5defc 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1653,6 +1653,14 @@ config NR_CPUS
source "kernel/Kconfig.preempt"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on 32BIT
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
config RTC_DS1742
bool "DS1742 BRAM/RTC support"
depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 910fb3a..591b49b 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -217,6 +217,14 @@ source "kernel/Kconfig.preempt"
source "kernel/Kconfig.hz"
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on !64BIT
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
config COMPAT
def_bool y
depends on 64BIT
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 6729c98..9444dfa 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -626,6 +626,14 @@ config CRASH_DUMP
Don't change this unless you know what you are doing.
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on PPC32
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
config EMBEDDEDBOOT
bool
depends on 8xx || 8260
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index e9a8f5d..c174d05 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -953,6 +953,13 @@ source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
source "fs/Kconfig.binfmt"
config PREP_RESIDUAL
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 01c5c08..785b2f6 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -218,6 +218,14 @@ config WARN_STACK_SIZE
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on !64BIT
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
comment "I/O subsystem configuration"
config MACHCHK_WARNING
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 2bcecf4..dc1decb 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -532,6 +532,13 @@ config NODES_SHIFT
default "1"
depends on NEED_MULTIPLE_NODES
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
endmenu
menu "Boot options"
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 9431e96..cd3cca3 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -67,6 +67,13 @@ config SPARC32
maintains both the SPARC32 and SPARC64 ports; its web page is
available at <http://www.ultralinux.org/>.
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
# Global things across all Sun machines.
config ISA
bool
diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig
index 37ec644..9aab649 100644
--- a/arch/v850/Kconfig
+++ b/arch/v850/Kconfig
@@ -235,6 +235,13 @@ menu "Processor type and features"
source "mm/Kconfig"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
endmenu
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index dbeb350..46ede7f 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -99,6 +99,13 @@ config MATH_EMULATION
config HIGHMEM
bool "High memory support"
+config RESOURCES_32BIT
+ bool "32 bit Memory and IO resources (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ By default resources are 64 bit. This option allows memory and IO
+ resources to be 32 bit to optimize code size.
+
endmenu
menu "Platform options"
diff --git a/include/linux/types.h b/include/linux/types.h
index 047eb8b..27835d5 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -179,9 +179,14 @@ #endif
#ifdef __KERNEL__
typedef unsigned __bitwise__ gfp_t;
-typedef unsigned long resource_size_t;
+#ifdef CONFIG_RESOURCES_32BIT
+typedef __u32 resource_size_t;
+#else
+typedef __u64 resource_size_t;
#endif
+#endif /* __KERNEL__ */
+
struct ustat {
__kernel_daddr_t f_tfree;
__kernel_ino_t f_tinode;
diff --git a/kernel/resource.c b/kernel/resource.c
index ad90a70..09b85c4 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -23,7 +23,11 @@ #include <asm/io.h>
struct resource ioport_resource = {
.name = "PCI IO",
- .start = 0x0000,
+#ifdef CONFIG_RESOURCES_32BIT
+ .start = 0x0000UL,
+#else
+ .start = 0x0000ULL,
+#endif
.end = IO_SPACE_LIMIT,
.flags = IORESOURCE_IO,
};
@@ -32,8 +36,13 @@ EXPORT_SYMBOL(ioport_resource);
struct resource iomem_resource = {
.name = "PCI mem",
+#ifdef CONFIG_RESOURCES_32BIT
.start = 0UL,
.end = ~0UL,
+#else
+ .start = 0ULL,
+ .end = ~0ULL,
+#endif
.flags = IORESOURCE_MEM,
};
--
1.4.0
-
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