From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: <linuxppc-dev@ozlabs.org>
Subject: [PATCH 1/9] powerpc/kconfig: Kill PPC_MULTIPLATFORM
Date: Wed, 11 Mar 2009 14:53:27 +1100 [thread overview]
Message-ID: <20090311035330.DDF1FDE153@ozlabs.org> (raw)
In-Reply-To: <1236743604.932194.842849421348.qpush@grosgo>
CONFIG_PPC_MULTIPLATFORM is a remain of the pre-powerpc days and isn't
really meaningful anymore. It was basically equivalent to PPC64 || 6xx.
This removes it along with the following changes:
- 32-bit platforms that relied on PPC32 && PPC_MULTIPLATFORM now rely
on 6xx which is what they want anyway.
- A new symbol, PPC_BOOK3S, is defined that represent compliance with
the "Server" variant of the architecture. This is set when either 6xx
or PPC64 is set and open the door for future BOOK3E 64-bit.
- 64-bit platforms that relied on PPC64 && PPC_MULTIPLATFORM now use
PPC64 && PPC_BOOK3S
- A separate and selectable CONFIG_PPC_OF_BOOT_TRAMPOLINE option is now
used to control the use of prom_init.c
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/Kconfig | 2 +-
arch/powerpc/Kconfig.debug | 2 +-
arch/powerpc/kernel/Makefile | 2 +-
arch/powerpc/kernel/head_32.S | 7 +++++--
arch/powerpc/kernel/head_64.S | 6 +++++-
arch/powerpc/platforms/512x/Kconfig | 4 ++--
arch/powerpc/platforms/52xx/Kconfig | 2 +-
arch/powerpc/platforms/82xx/Kconfig | 2 +-
arch/powerpc/platforms/83xx/Kconfig | 2 +-
arch/powerpc/platforms/86xx/Kconfig | 2 +-
arch/powerpc/platforms/Kconfig | 27 +++++++++++++++------------
arch/powerpc/platforms/Kconfig.cputype | 18 +++++++++++++-----
arch/powerpc/platforms/amigaone/Kconfig | 2 +-
arch/powerpc/platforms/cell/Kconfig | 6 +++---
arch/powerpc/platforms/chrp/Kconfig | 2 +-
arch/powerpc/platforms/embedded6xx/Kconfig | 2 +-
arch/powerpc/platforms/iseries/Kconfig | 2 +-
arch/powerpc/platforms/maple/Kconfig | 2 +-
arch/powerpc/platforms/pasemi/Kconfig | 2 +-
arch/powerpc/platforms/powermac/Kconfig | 2 +-
arch/powerpc/platforms/prep/Kconfig | 2 +-
arch/powerpc/platforms/ps3/Kconfig | 2 +-
arch/powerpc/platforms/pseries/Kconfig | 2 +-
23 files changed, 60 insertions(+), 42 deletions(-)
--- linux-work.orig/arch/powerpc/Kconfig 2009-02-24 15:04:13.000000000 +1100
+++ linux-work/arch/powerpc/Kconfig 2009-02-24 15:31:51.000000000 +1100
@@ -313,7 +313,7 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
config KEXEC
bool "kexec system call (EXPERIMENTAL)"
- depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL
+ depends on BOOK3S && EXPERIMENTAL
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
Index: linux-work/arch/powerpc/kernel/Makefile
===================================================================
--- linux-work.orig/arch/powerpc/kernel/Makefile 2009-02-24 15:05:49.000000000 +1100
+++ linux-work/arch/powerpc/kernel/Makefile 2009-02-24 15:12:20.000000000 +1100
@@ -75,7 +75,7 @@ obj-y += time.o prom.o traps.o setup-
obj-$(CONFIG_PPC32) += entry_32.o setup_32.o
obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o
obj-$(CONFIG_KGDB) += kgdb.o
-obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
+obj-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init.o
obj-$(CONFIG_MODULES) += ppc_ksyms.o
obj-$(CONFIG_BOOTX_TEXT) += btext.o
obj-$(CONFIG_SMP) += smp.o
Index: linux-work/arch/powerpc/kernel/head_32.S
===================================================================
--- linux-work.orig/arch/powerpc/kernel/head_32.S 2009-02-24 15:12:55.000000000 +1100
+++ linux-work/arch/powerpc/kernel/head_32.S 2009-02-24 16:24:44.000000000 +1100
@@ -108,18 +108,21 @@ __start:
* because OF may have I/O devices mapped into that area
* (particularly on CHRP).
*/
-#ifdef CONFIG_PPC_MULTIPLATFORM
cmpwi 0,r5,0
beq 1f
+#ifdef CONFIG_PPC_OF_BOOT_TRAMPOLINE
/* find out where we are now */
bcl 20,31,$+4
0: mflr r8 /* r8 = runtime addr here */
addis r8,r8,(_stext - 0b)@ha
addi r8,r8,(_stext - 0b)@l /* current runtime base addr */
bl prom_init
+#endif /* CONFIG_PPC_OF_BOOT_TRAMPOLINE */
+
+ /* We never return. We also hit that trap if trying to boot
+ * from OF while CONFIG_PPC_OF_BOOT_TRAMPOLINE isn't selected */
trap
-#endif
/*
* Check for BootX signature when supporting PowerMac and branch to
Index: linux-work/arch/powerpc/platforms/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/Kconfig 2009-02-24 15:02:47.000000000 +1100
+++ linux-work/arch/powerpc/platforms/Kconfig 2009-02-24 15:35:02.000000000 +1100
@@ -1,14 +1,5 @@
menu "Platform support"
-config PPC_MULTIPLATFORM
- bool
- depends on PPC64 || 6xx
- default y
-
-config CLASSIC32
- def_bool y
- depends on 6xx && PPC_MULTIPLATFORM
-
source "arch/powerpc/platforms/pseries/Kconfig"
source "arch/powerpc/platforms/iseries/Kconfig"
source "arch/powerpc/platforms/chrp/Kconfig"
@@ -32,12 +23,24 @@ source "arch/powerpc/platforms/amigaone/
config PPC_NATIVE
bool
- depends on PPC_MULTIPLATFORM
+ depends on 6xx || PPC64
help
Support for running natively on the hardware, i.e. without
a hypervisor. This option is not user-selectable but should
be selected by all platforms that need it.
+config PPC_OF_BOOT_TRAMPOLINE
+ bool "Support booting from Open Firmware or yaboot"
+ depends on 6xx || PPC64
+ default y
+ help
+ Support from booting from Open Firmware or yaboot using an
+ Open Firmware client interface. This enables the kernel to
+ communicate with open firmware to retrieve system informations
+ such as the device tree.
+
+ In case of doubt, say Y
+
config UDBG_RTAS_CONSOLE
bool "RTAS based debug console"
depends on PPC_RTAS
@@ -71,7 +74,7 @@ config PPC_I8259
config U3_DART
bool
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64
default n
config PPC_RTAS
@@ -188,7 +191,7 @@ config PPC601_SYNC_FIX
config TAU
bool "On-chip CPU temperature sensor support"
- depends on CLASSIC32
+ depends on 6xx
help
G3 and G4 processors have an on-chip temperature sensor called the
'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
Index: linux-work/arch/powerpc/platforms/512x/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/512x/Kconfig 2009-02-24 15:13:42.000000000 +1100
+++ linux-work/arch/powerpc/platforms/512x/Kconfig 2009-02-24 15:14:02.000000000 +1100
@@ -12,7 +12,7 @@ config PPC_MPC5121
config MPC5121_ADS
bool "Freescale MPC5121E ADS"
- depends on PPC_MULTIPLATFORM && PPC32
+ depends on 6xx
select DEFAULT_UIMAGE
select PPC_MPC5121
select MPC5121_ADS_CPLD
@@ -21,7 +21,7 @@ config MPC5121_ADS
config MPC5121_GENERIC
bool "Generic support for simple MPC5121 based boards"
- depends on PPC_MULTIPLATFORM && PPC32
+ depends on 6xx
select DEFAULT_UIMAGE
select PPC_MPC5121
help
Index: linux-work/arch/powerpc/platforms/52xx/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/52xx/Kconfig 2009-02-24 15:14:15.000000000 +1100
+++ linux-work/arch/powerpc/platforms/52xx/Kconfig 2009-02-24 15:14:18.000000000 +1100
@@ -1,6 +1,6 @@
config PPC_MPC52xx
bool "52xx-based boards"
- depends on PPC_MULTIPLATFORM && PPC32
+ depends on 6xx
select PPC_CLOCK
select PPC_PCI_CHOICE
Index: linux-work/arch/powerpc/platforms/82xx/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/82xx/Kconfig 2009-02-24 15:14:27.000000000 +1100
+++ linux-work/arch/powerpc/platforms/82xx/Kconfig 2009-02-24 15:14:32.000000000 +1100
@@ -1,6 +1,6 @@
menuconfig PPC_82xx
bool "82xx-based boards (PQ II)"
- depends on 6xx && PPC_MULTIPLATFORM
+ depends on 6xx
if PPC_82xx
Index: linux-work/arch/powerpc/platforms/83xx/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/83xx/Kconfig 2009-02-24 15:14:38.000000000 +1100
+++ linux-work/arch/powerpc/platforms/83xx/Kconfig 2009-02-24 15:14:43.000000000 +1100
@@ -1,6 +1,6 @@
menuconfig PPC_83xx
bool "83xx-based boards"
- depends on 6xx && PPC_MULTIPLATFORM
+ depends on 6xx
select PPC_UDBG_16550
select PPC_PCI_CHOICE
select FSL_PCI if PCI
Index: linux-work/arch/powerpc/platforms/86xx/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/86xx/Kconfig 2009-02-24 15:14:52.000000000 +1100
+++ linux-work/arch/powerpc/platforms/86xx/Kconfig 2009-02-24 15:14:58.000000000 +1100
@@ -1,7 +1,7 @@
config PPC_86xx
menuconfig PPC_86xx
bool "86xx-based boards"
- depends on 6xx && PPC_MULTIPLATFORM
+ depends on 6xx
select FSL_SOC
select ALTIVEC
help
Index: linux-work/arch/powerpc/platforms/Kconfig.cputype
===================================================================
--- linux-work.orig/arch/powerpc/platforms/Kconfig.cputype 2009-02-24 15:22:46.000000000 +1100
+++ linux-work/arch/powerpc/platforms/Kconfig.cputype 2009-02-24 15:35:09.000000000 +1100
@@ -57,9 +57,17 @@ config E200
endchoice
+# Until we have a choice of exclusive CPU types on 64-bit, we always
+# use PPC_BOOK3S. On 32-bit, this is equivalent to 6xx which is
+# "classic" MMU
+
+config PPC_BOOK3S
+ def_bool y
+ depends on PPC64 || 6xx
+
config POWER4_ONLY
bool "Optimize for POWER4"
- depends on PPC64
+ depends on PPC64 && PPC_BOOK3S
default n
---help---
Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
@@ -68,16 +76,16 @@ config POWER4_ONLY
config POWER3
bool
- depends on PPC64
+ depends on PPC64 && PPC_BOOK3S
default y if !POWER4_ONLY
config POWER4
- depends on PPC64
+ depends on PPC64 && PPC_BOOK3S
def_bool y
config TUNE_CELL
bool "Optimize for Cell Broadband Engine"
- depends on PPC64
+ depends on PPC64 && PPC_BOOK3S
help
Cause the compiler to optimize for the PPE of the Cell Broadband
Engine. This will make the code run considerably faster on Cell
@@ -147,7 +155,7 @@ config PHYS_64BIT
config ALTIVEC
bool "AltiVec Support"
- depends on CLASSIC32 || POWER4
+ depends on 6xx || POWER4
---help---
This option enables kernel support for the Altivec extensions to the
PowerPC processor. The kernel currently supports saving and restoring
Index: linux-work/arch/powerpc/platforms/amigaone/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/amigaone/Kconfig 2009-02-24 15:27:56.000000000 +1100
+++ linux-work/arch/powerpc/platforms/amigaone/Kconfig 2009-02-24 15:28:08.000000000 +1100
@@ -1,6 +1,6 @@
config AMIGAONE
bool "Eyetech AmigaOne/MAI Teron"
- depends on PPC32 && BROKEN_ON_SMP && PPC_MULTIPLATFORM
+ depends on 6xx && BROKEN_ON_SMP
select PPC_I8259
select PPC_INDIRECT_PCI
select PPC_UDBG_16550
Index: linux-work/arch/powerpc/platforms/cell/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/cell/Kconfig 2009-02-24 15:15:08.000000000 +1100
+++ linux-work/arch/powerpc/platforms/cell/Kconfig 2009-02-24 15:25:15.000000000 +1100
@@ -23,7 +23,7 @@ config PPC_CELL_NATIVE
config PPC_IBM_CELL_BLADE
bool "IBM Cell Blade"
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
select PPC_CELL_NATIVE
select MMIO_NVRAM
select PPC_UDBG_16550
@@ -31,7 +31,7 @@ config PPC_IBM_CELL_BLADE
config PPC_CELLEB
bool "Toshiba's Cell Reference Set 'Celleb' Architecture"
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
select PPC_CELL_NATIVE
select HAS_TXX9_SERIAL
select PPC_UDBG_BEAT
@@ -40,7 +40,7 @@ config PPC_CELLEB
config PPC_CELL_QPACE
bool "IBM Cell - QPACE"
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
select PPC_CELL_COMMON
menu "Cell Broadband Engine options"
Index: linux-work/arch/powerpc/platforms/chrp/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/chrp/Kconfig 2009-02-24 15:15:31.000000000 +1100
+++ linux-work/arch/powerpc/platforms/chrp/Kconfig 2009-02-24 15:15:44.000000000 +1100
@@ -1,6 +1,6 @@
config PPC_CHRP
bool "Common Hardware Reference Platform (CHRP) based machines"
- depends on PPC_MULTIPLATFORM && PPC32
+ depends on 6xx
select MPIC
select PPC_I8259
select PPC_INDIRECT_PCI
Index: linux-work/arch/powerpc/platforms/embedded6xx/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/embedded6xx/Kconfig 2009-02-24 15:15:58.000000000 +1100
+++ linux-work/arch/powerpc/platforms/embedded6xx/Kconfig 2009-02-24 15:16:21.000000000 +1100
@@ -1,6 +1,6 @@
config EMBEDDED6xx
bool "Embedded 6xx/7xx/7xxx-based boards"
- depends on PPC32 && BROKEN_ON_SMP && PPC_MULTIPLATFORM
+ depends on 6xx && BROKEN_ON_SMP
config LINKSTATION
bool "Linkstation / Kurobox(HG) from Buffalo"
Index: linux-work/arch/powerpc/platforms/iseries/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/iseries/Kconfig 2009-02-24 15:21:42.000000000 +1100
+++ linux-work/arch/powerpc/platforms/iseries/Kconfig 2009-02-24 15:25:35.000000000 +1100
@@ -1,6 +1,6 @@
config PPC_ISERIES
bool "IBM Legacy iSeries"
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
select PPC_INDIRECT_IO
select PPC_PCI_CHOICE if EMBEDDED
Index: linux-work/arch/powerpc/platforms/maple/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/maple/Kconfig 2009-02-24 15:22:00.000000000 +1100
+++ linux-work/arch/powerpc/platforms/maple/Kconfig 2009-02-24 15:25:41.000000000 +1100
@@ -1,5 +1,5 @@
config PPC_MAPLE
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
bool "Maple 970FX Evaluation Board"
select PCI
select MPIC
Index: linux-work/arch/powerpc/platforms/pasemi/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/pasemi/Kconfig 2009-02-24 15:22:18.000000000 +1100
+++ linux-work/arch/powerpc/platforms/pasemi/Kconfig 2009-02-24 15:25:50.000000000 +1100
@@ -1,5 +1,5 @@
config PPC_PASEMI
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
bool "PA Semi SoC-based platforms"
default n
select MPIC
Index: linux-work/arch/powerpc/platforms/powermac/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/powermac/Kconfig 2009-02-24 15:26:00.000000000 +1100
+++ linux-work/arch/powerpc/platforms/powermac/Kconfig 2009-02-24 15:26:11.000000000 +1100
@@ -1,6 +1,6 @@
config PPC_PMAC
bool "Apple PowerMac based machines"
- depends on PPC_MULTIPLATFORM
+ depends on PPC_BOOK3S
select MPIC
select PCI
select PPC_INDIRECT_PCI if PPC32
Index: linux-work/arch/powerpc/platforms/prep/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/prep/Kconfig 2009-02-24 15:26:55.000000000 +1100
+++ linux-work/arch/powerpc/platforms/prep/Kconfig 2009-02-24 15:27:04.000000000 +1100
@@ -1,6 +1,6 @@
config PPC_PREP
bool "PowerPC Reference Platform (PReP) based machines"
- depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
+ depends on 6xx && BROKEN
select MPIC
select PPC_I8259
select PPC_INDIRECT_PCI
Index: linux-work/arch/powerpc/platforms/ps3/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/ps3/Kconfig 2009-02-24 15:27:20.000000000 +1100
+++ linux-work/arch/powerpc/platforms/ps3/Kconfig 2009-02-24 15:27:31.000000000 +1100
@@ -1,6 +1,6 @@
config PPC_PS3
bool "Sony PS3"
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
select PPC_CELL
select USB_ARCH_HAS_OHCI
select USB_OHCI_LITTLE_ENDIAN
Index: linux-work/arch/powerpc/platforms/pseries/Kconfig
===================================================================
--- linux-work.orig/arch/powerpc/platforms/pseries/Kconfig 2009-02-24 15:27:36.000000000 +1100
+++ linux-work/arch/powerpc/platforms/pseries/Kconfig 2009-02-24 15:27:47.000000000 +1100
@@ -1,5 +1,5 @@
config PPC_PSERIES
- depends on PPC_MULTIPLATFORM && PPC64
+ depends on PPC64 && PPC_BOOK3S
bool "IBM pSeries & new (POWER5-based) iSeries"
select MPIC
select PPC_I8259
Index: linux-work/arch/powerpc/Kconfig.debug
===================================================================
--- linux-work.orig/arch/powerpc/Kconfig.debug 2009-02-24 15:30:26.000000000 +1100
+++ linux-work/arch/powerpc/Kconfig.debug 2009-02-24 15:31:01.000000000 +1100
@@ -129,7 +129,7 @@ config BDI_SWITCH
config BOOTX_TEXT
bool "Support for early boot text console (BootX or OpenFirmware only)"
- depends on PPC_OF && PPC_MULTIPLATFORM
+ depends on PPC_OF && PPC_BOOK3S
help
Say Y here to see progress messages from the boot firmware in text
mode. Requires either BootX or Open Firmware.
Index: linux-work/arch/powerpc/kernel/head_64.S
===================================================================
--- linux-work.orig/arch/powerpc/kernel/head_64.S 2009-02-24 16:23:30.000000000 +1100
+++ linux-work/arch/powerpc/kernel/head_64.S 2009-02-24 16:25:07.000000000 +1100
@@ -1360,6 +1360,7 @@ _GLOBAL(__start_initialization_multiplat
b .__after_prom_start
_INIT_STATIC(__boot_from_prom)
+#ifdef CONFIG_PPC_OF_BOOT_TRAMPOLINE
/* Save parameters */
mr r31,r3
mr r30,r4
@@ -1390,7 +1391,10 @@ _INIT_STATIC(__boot_from_prom)
/* Do all of the interaction with OF client interface */
mr r8,r26
bl .prom_init
- /* We never return */
+#endif /* #CONFIG_PPC_OF_BOOT_TRAMPOLINE */
+
+ /* We never return. We also hit that trap if trying to boot
+ * from OF while CONFIG_PPC_OF_BOOT_TRAMPOLINE isn't selected */
trap
_STATIC(__after_prom_start)
next prev parent reply other threads:[~2009-03-11 3:53 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-11 3:53 [PATCH 0/9] powerpc: MMU cleanup and propare for new Book3-E Benjamin Herrenschmidt
2009-03-11 3:53 ` Benjamin Herrenschmidt [this message]
2009-03-11 12:04 ` [PATCH 1/9] powerpc/kconfig: Kill PPC_MULTIPLATFORM Kumar Gala
2009-03-11 21:38 ` Benjamin Herrenschmidt
2009-03-11 3:53 ` [PATCH 2/9] powerpc/mm: Split the various pgtable-* headers based on MMU type (v3) Benjamin Herrenschmidt
2009-03-11 3:53 ` [PATCH 3/9] powerpc/mm: Unify PTE_RPN_SHIFT and _PAGE_CHG_MASK definitions Benjamin Herrenschmidt
2009-03-11 3:53 ` [PATCH 4/9] powerpc/mm: Tweak PTE bit combination definitions (v2) Benjamin Herrenschmidt
2009-03-13 3:44 ` Michael Ellerman
2009-03-11 3:53 ` [PATCH 5/9] powerpc/mm: Merge various PTE bits and accessors " Benjamin Herrenschmidt
2009-03-19 16:16 ` Kumar Gala
2009-03-11 3:53 ` [PATCH 6/9] powerpc/mm: Rename arch/powerpc/kernel/mmap.c to mmap_64.c Benjamin Herrenschmidt
2009-03-11 3:53 ` [PATCH 7/9] powerpc/mm: Fix printk type warning in mmu_context_nohash Benjamin Herrenschmidt
2009-03-11 3:53 ` [PATCH 8/9] powerpc/mm: Add option for non-atomic PTE updates to ppc64 Benjamin Herrenschmidt
2009-03-11 3:53 ` [PATCH 9/9] powerpc/mm: Introduce early_init_mmu() on 64-bit Benjamin Herrenschmidt
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