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Revert ia64 changes from previous checkin.

Browse Source 
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
This commit is contained in:
cl349@firebug.cl.cam.ac.uk committed 2006-02-02 19:21:18 +00:00
1 parent a8f141f465
commit 6e59ff5e15
9 files changed
+318 -232
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linux-2.6-xen-sparse/arch/ia64/Kconfig
+115 -92
View File
@@ -26,6 +26,10 @@ config MMU
bool
default y
config SWIOTLB
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
default y
@@ -97,16 +101,23 @@ config SCHED_NO_NO_OMIT_FRAME_POINTER
bool
default y
config IA64_UNCACHED_ALLOCATOR
bool
select GENERIC_ALLOCATOR
config DMA_IS_DMA32
bool
default y
choice
prompt "System type"
default IA64_GENERIC
config IA64_GENERIC
bool "generic"
select ACPI
select NUMA
select ACPI_NUMA
select VIRTUAL_MEM_MAP
select DISCONTIGMEM
help
This selects the system type of your hardware. A "generic" kernel
will run on any supported IA-64 system. However, if you configure
@@ -204,6 +215,21 @@ config IA64_PAGE_SIZE_64KB
endchoice
choice
prompt "Page Table Levels"
default PGTABLE_3
config PGTABLE_3
bool "3 Levels"
config PGTABLE_4
depends on !IA64_PAGE_SIZE_64KB
bool "4 Levels"
endchoice
source kernel/Kconfig.hz
config IA64_BRL_EMU
bool
depends on ITANIUM
@@ -216,40 +242,6 @@ config IA64_L1_CACHE_SHIFT
default "6" if ITANIUM
# align cache-sensitive data to 64 bytes
config NUMA
bool "NUMA support"
depends on !IA64_HP_SIM
default y if IA64_SGI_SN2
select ACPI_NUMA
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
server systems. If in doubt, say N.
config VIRTUAL_MEM_MAP
bool "Virtual mem map"
default y if !IA64_HP_SIM
help
Say Y to compile the kernel with support for a virtual mem map.
This code also only takes effect if a memory hole of greater than
1 Gb is found during boot. You must turn this option on if you
require the DISCONTIGMEM option for your machine. If you are
unsure, say Y.
config HOLES_IN_ZONE
bool
default y if VIRTUAL_MEM_MAP
config DISCONTIGMEM
bool "Discontiguous memory support"
depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) && NUMA && VIRTUAL_MEM_MAP
default y if (IA64_SGI_SN2 || IA64_GENERIC) && NUMA
help
Say Y to support efficient handling of discontiguous physical memory,
for architectures which are either NUMA (Non-Uniform Memory Access)
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
config IA64_CYCLONE
bool "Cyclone (EXA) Time Source support"
help
@@ -261,16 +253,10 @@ config IOSAPIC
depends on !IA64_HP_SIM
default y
config IA64_SGI_SN_SIM
bool "SGI Medusa Simulator Support"
depends on IA64_SGI_SN2
help
If you are compiling a kernel that will run under SGI's IA-64
simulator (Medusa) then say Y, otherwise say N.
config IA64_SGI_SN_XP
tristate "Support communication between SGI SSIs"
depends on MSPEC
depends on IA64_GENERIC || IA64_SGI_SN2
select IA64_UNCACHED_ALLOCATOR
help
An SGI machine can be divided into multiple Single System
Images which act independently of each other and have
@@ -279,8 +265,10 @@ config IA64_SGI_SN_XP
based on a network adapter and DMA messaging.
config FORCE_MAX_ZONEORDER
int
default "18"
int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
range 11 17 if !HUGETLB_PAGE
default "17" if HUGETLB_PAGE
default "11"
config SMP
bool "Symmetric multi-processing support"
@@ -301,8 +289,8 @@ config SMP
If you don't know what to do here, say N.
config NR_CPUS
int "Maximum number of CPUs (2-512)"
range 2 512
int "Maximum number of CPUs (2-1024)"
range 2 1024
depends on SMP
default "64"
help
@@ -343,10 +331,59 @@ config PREEMPT
Say Y here if you are building a kernel for a desktop, embedded
or real-time system. Say N if you are unsure.
config HAVE_DEC_LOCK
source "mm/Kconfig"
config ARCH_SELECT_MEMORY_MODEL
def_bool y
config ARCH_DISCONTIGMEM_ENABLE
def_bool y
help
Say Y to support efficient handling of discontiguous physical memory,
for architectures which are either NUMA (Non-Uniform Memory Access)
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
config ARCH_FLATMEM_ENABLE
def_bool y
config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on ARCH_DISCONTIGMEM_ENABLE
config ARCH_DISCONTIGMEM_DEFAULT
def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
depends on ARCH_DISCONTIGMEM_ENABLE
config NUMA
bool "NUMA support"
depends on !IA64_HP_SIM && !FLATMEM
default y if IA64_SGI_SN2
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
server systems. If in doubt, say N.
# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
# VIRTUAL_MEM_MAP has been retained for historical reasons.
config VIRTUAL_MEM_MAP
bool "Virtual mem map"
depends on !SPARSEMEM
default y if !IA64_HP_SIM
help
Say Y to compile the kernel with support for a virtual mem map.
This code also only takes effect if a memory hole of greater than
1 Gb is found during boot. You must turn this option on if you
require the DISCONTIGMEM option for your machine. If you are
unsure, say Y.
config HOLES_IN_ZONE
bool
depends on (SMP || PREEMPT)
default y
default y if VIRTUAL_MEM_MAP
config HAVE_ARCH_EARLY_PFN_TO_NID
def_bool y
depends on NEED_MULTIPLE_NODES
config IA32_SUPPORT
bool "Support for Linux/x86 binaries"
@@ -384,11 +421,6 @@ config IA64_PALINFO
To use this option, you have to ensure that the "/proc file system
support" (CONFIG_PROC_FS) is enabled, too.
config ACPI_DEALLOCATE_IRQ
bool
depends on IOSAPIC && EXPERIMENTAL
default y
source "drivers/firmware/Kconfig"
source "fs/Kconfig.binfmt"
@@ -397,36 +429,14 @@ endmenu
menu "Power management and ACPI"
config PM
bool "Power Management support"
depends on !IA64_HP_SIM
default y
help
"Power Management" means that parts of your computer are shut
off or put into a power conserving "sleep" mode if they are not
being used. There are two competing standards for doing this: APM
and ACPI. If you want to use either one, say Y here and then also
to the requisite support below.
Power Management is most important for battery powered laptop
computers; if you have a laptop, check out the Linux Laptop home
page on the WWW at <http://www.linux-on-laptops.com/> and the
Battery Powered Linux mini-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
Note that, even if you say N here, Linux on the x86 architecture
will issue the hlt instruction if nothing is to be done, thereby
sending the processor to sleep and saving power.
config ACPI
bool
depends on !IA64_HP_SIM
default y
if !IA64_HP_SIM
source "kernel/power/Kconfig"
source "drivers/acpi/Kconfig"
if PM
source "arch/ia64/kernel/cpufreq/Kconfig"
endif
endmenu
@@ -438,15 +448,8 @@ menu "Bus options (PCI, PCMCIA)"
config PCI
bool "PCI support"
help
Find out whether you have a PCI motherboard. PCI is the name of a
bus system, i.e. the way the CPU talks to the other stuff inside
your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
VESA. If you have PCI, say Y, otherwise N.
The PCI-HOWTO, available from
<http://www.tldp.org/docs.html#howto>, contains valuable
information about which PCI hardware does work under Linux and which
doesn't.
Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
here unless you are using a simulator without PCI support.
config PCI_DOMAINS
bool
@@ -462,6 +465,8 @@ endmenu
endif
source "net/Kconfig"
source "drivers/Kconfig"
source "fs/Kconfig"
@@ -479,10 +484,28 @@ config GENERIC_IRQ_PROBE
bool
default y
config GENERIC_PENDING_IRQ
bool
depends on GENERIC_HARDIRQS && SMP
default y
source "arch/ia64/hp/sim/Kconfig"
menu "Instrumentation Support"
depends on EXPERIMENTAL
source "arch/ia64/oprofile/Kconfig"
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
a probepoint and specifies the callback. Kprobes is useful
for kernel debugging, non-intrusive instrumentation and testing.
If in doubt, say "N".
endmenu
source "arch/ia64/Kconfig.debug"
source "security/Kconfig"
linux-2.6-xen-sparse/arch/ia64/Makefile
+1 -39
View File
@@ -11,9 +11,6 @@
NM := $(CROSS_COMPILE)nm -B
READELF := $(CROSS_COMPILE)readelf
# following is temporary pending xen directory restructuring
NOSTDINC_FLAGS += -Iinclude/asm-xen
export AWK
CHECKFLAGS += -m64 -D__ia64=1 -D__ia64__=1 -D_LP64 -D__LP64__
@@ -91,42 +88,7 @@ unwcheck: vmlinux
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
CLEAN_FILES += include/asm-ia64/.offsets.h.stamp vmlinux.gz bootloader
#CLEAN_FILES += include/asm-xen/xen-public include/asm-ia64/xen/asm-xsi-offsets.h
#CLEAN_FILES += include/asm-xen/linux-public include/asm-xen/asm-ia64/hypervisor.h
MRPROPER_FILES += include/asm-ia64/offsets.h
prepare: include/asm-ia64/offsets.h
arch/ia64/kernel/asm-offsets.s: include/asm include/linux/version.h include/config/MARKER
include/asm-ia64/offsets.h: arch/ia64/kernel/asm-offsets.s
$(call filechk,gen-asm-offsets)
arch/ia64/kernel/asm-offsets.s: include/asm-ia64/.offsets.h.stamp
#XEN_PATH ?= $(srctree)/../xen-ia64-unstable.hg/
include/asm-ia64/.offsets.h.stamp:
mkdir -p include/asm-ia64
[ -s include/asm-ia64/offsets.h ] \
|| echo "#define IA64_TASK_SIZE 0" > include/asm-ia64/offsets.h
touch $@
[ -e include/asm-xen/asm ] \
|| ln -s asm-ia64 include/asm-xen/asm
# [ -e include/asm-xen/xen-public ] \
# || ln -s $(XEN_PATH)/xen/include/public \
# include/asm-xen/xen-public
# [ -e include/asm-ia64/xen/asm-xsi-offsets.h ] \
# || ln -s $(XEN_PATH)/xen/include/asm-ia64/asm-xsi-offsets.h \
# include/asm-ia64/xen/asm-xsi-offsets.h
# [ -e include/asm-xen/linux-public ] \
# || ln -s $(XEN_PATH)/linux-2.6-xen-sparse/include/asm-xen/linux-public \
include/asm-xen/linux-public
[ -e include/asm-xen/asm-ia64/hypervisor.h ] \
|| ln -s $(XEN_PATH)/linux-2.6-xen-sparse/include/asm-xen/asm-ia64/hypervisor.h \
include/asm-xen/asm-ia64/hypervisor.h
CLEAN_FILES += vmlinux.gz bootloader
boot: lib/lib.a vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
linux-2.6-xen-sparse/arch/ia64/kernel/entry.S
+87 -70
View File
@@ -37,7 +37,7 @@
#include <asm/cache.h>
#include <asm/errno.h>
#include <asm/kregs.h>
#include <asm/offsets.h>
#include <asm/asm-offsets.h>
#include <asm/pgtable.h>
#include <asm/percpu.h>
#include <asm/processor.h>
@@ -204,9 +204,6 @@ GLOBAL_ENTRY(__ia64_switch_to)
(p6) br.cond.dpnt .map
;;
.done:
(p6) ssm psr.ic // if we had to map, reenable the psr.ic bit FIRST!!!
;;
(p6) srlz.d
ld8 sp=[r21] // load kernel stack pointer of new task
mov IA64_KR(CURRENT)=in0 // update "current" application register
mov r8=r13 // return pointer to previously running task
@@ -234,6 +231,9 @@ GLOBAL_ENTRY(__ia64_switch_to)
mov IA64_KR(CURRENT_STACK)=r26 // remember last page we mapped...
;;
itr.d dtr[r25]=r23 // wire in new mapping...
ssm psr.ic // reenable the psr.ic bit
;;
srlz.d
br.cond.sptk .done
END(__ia64_switch_to)
@@ -470,17 +470,28 @@ GLOBAL_ENTRY(load_switch_stack)
br.cond.sptk.many b7
END(load_switch_stack)
GLOBAL_ENTRY(__ia64_syscall)
.regstk 6,0,0,0
mov r15=in5 // put syscall number in place
break __BREAK_SYSCALL
movl r2=errno
cmp.eq p6,p7=-1,r10
GLOBAL_ENTRY(prefetch_stack)
add r14 = -IA64_SWITCH_STACK_SIZE, sp
add r15 = IA64_TASK_THREAD_KSP_OFFSET, in0
;;
(p6) st4 [r2]=r8
(p6) mov r8=-1
ld8 r16 = [r15] // load next's stack pointer
lfetch.fault.excl [r14], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault [r16], 128
br.ret.sptk.many rp
END(__ia64_syscall)
END(prefetch_stack)
GLOBAL_ENTRY(execve)
mov r15=__NR_execve // put syscall number in place
@@ -640,7 +651,7 @@ END(ia64_ret_from_syscall)
* r8-r11: restored (syscall return value(s))
* r12: restored (user-level stack pointer)
* r13: restored (user-level thread pointer)
* r14: cleared
* r14: set to __kernel_syscall_via_epc
* r15: restored (syscall #)
* r16-r17: cleared
* r18: user-level b6
@@ -661,7 +672,7 @@ END(ia64_ret_from_syscall)
* pr: restored (user-level pr)
* b0: restored (user-level rp)
* b6: restored
* b7: cleared
* b7: set to __kernel_syscall_via_epc
* ar.unat: restored (user-level ar.unat)
* ar.pfs: restored (user-level ar.pfs)
* ar.rsc: restored (user-level ar.rsc)
@@ -707,72 +718,79 @@ GLOBAL_ENTRY(__ia64_leave_syscall)
;;
(p6) ld4 r31=[r18] // load current_thread_info()->flags
ld8 r19=[r2],PT(B6)-PT(LOADRS) // load ar.rsc value for "loadrs"
mov b7=r0 // clear b7
nop.i 0
;;
ld8 r23=[r3],PT(R11)-PT(AR_BSPSTORE) // load ar.bspstore (may be garbage)
mov r16=ar.bsp // M2 get existing backing store pointer
ld8 r18=[r2],PT(R9)-PT(B6) // load b6
(p6) and r15=TIF_WORK_MASK,r31 // any work other than TIF_SYSCALL_TRACE?
;;
mov r16=ar.bsp // M2 get existing backing store pointer
ld8 r23=[r3],PT(R11)-PT(AR_BSPSTORE) // load ar.bspstore (may be garbage)
(p6) cmp4.ne.unc p6,p0=r15, r0 // any special work pending?
(p6) br.cond.spnt .work_pending_syscall
;;
// start restoring the state saved on the kernel stack (struct pt_regs):
ld8 r9=[r2],PT(CR_IPSR)-PT(R9)
ld8 r11=[r3],PT(CR_IIP)-PT(R11)
mov f6=f0 // clear f6
(pNonSys) break 0 // bug check: we shouldn't be here if pNonSys is TRUE!
;;
invala // M0|1 invalidate ALAT
rsm psr.i | psr.ic // M2 initiate turning off of interrupt and interruption collection
mov f9=f0 // clear f9
rsm psr.i | psr.ic // M2 turn off interrupts and interruption collection
cmp.eq p9,p0=r0,r0 // A set p9 to indicate that we should restore cr.ifs
ld8 r29=[r2],16 // load cr.ipsr
ld8 r28=[r3],16 // load cr.iip
mov f8=f0 // clear f8
ld8 r29=[r2],16 // M0|1 load cr.ipsr
ld8 r28=[r3],16 // M0|1 load cr.iip
mov r22=r0 // A clear r22
;;
ld8 r30=[r2],16 // M0|1 load cr.ifs
ld8 r25=[r3],16 // M0|1 load ar.unat
cmp.eq p9,p0=r0,r0 // set p9 to indicate that we should restore cr.ifs
;;
ld8 r26=[r2],PT(B0)-PT(AR_PFS) // M0|1 load ar.pfs
(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled
mov f10=f0 // clear f10
;;
ld8 r21=[r2],PT(AR_RNAT)-PT(B0) // load b0
ld8 r27=[r3],PT(PR)-PT(AR_RSC) // load ar.rsc
mov f11=f0 // clear f11
;;
ld8 r24=[r2],PT(AR_FPSR)-PT(AR_RNAT) // load ar.rnat (may be garbage)
ld8 r31=[r3],PT(R1)-PT(PR) // load predicates
(pUStk) add r14=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13
;;
ld8 r20=[r2],PT(R12)-PT(AR_FPSR) // load ar.fpsr
ld8.fill r1=[r3],16 // load r1
(pUStk) mov r17=1
ld8 r26=[r2],PT(B0)-PT(AR_PFS) // M0|1 load ar.pfs
(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled
nop 0
;;
srlz.d // M0 ensure interruption collection is off
ld8.fill r13=[r3],16
mov f7=f0 // clear f7
ld8 r21=[r2],PT(AR_RNAT)-PT(B0) // M0|1 load b0
ld8 r27=[r3],PT(PR)-PT(AR_RSC) // M0|1 load ar.rsc
mov f6=f0 // F clear f6
;;
ld8.fill r12=[r2] // restore r12 (sp)
mov.m ar.ssd=r0 // M2 clear ar.ssd
mov r22=r0 // clear r22
ld8 r24=[r2],PT(AR_FPSR)-PT(AR_RNAT) // M0|1 load ar.rnat (may be garbage)
ld8 r31=[r3],PT(R1)-PT(PR) // M0|1 load predicates
mov f7=f0 // F clear f7
;;
ld8 r20=[r2],PT(R12)-PT(AR_FPSR) // M0|1 load ar.fpsr
ld8.fill r1=[r3],16 // M0|1 load r1
(pUStk) mov r17=1 // A
;;
(pUStk) st1 [r14]=r17 // M2|3
ld8.fill r13=[r3],16 // M0|1
mov f8=f0 // F clear f8
;;
ld8.fill r12=[r2] // M0|1 restore r12 (sp)
ld8.fill r15=[r3] // M0|1 restore r15
mov b6=r18 // I0 restore b6
ld8.fill r15=[r3] // restore r15
(pUStk) st1 [r14]=r17
addl r3=THIS_CPU(ia64_phys_stacked_size_p8),r0
;;
(pUStk) ld4 r17=[r3] // r17 = cpu_data->phys_stacked_size_p8
mov.m ar.csd=r0 // M2 clear ar.csd
mov b6=r18 // I0 restore b6
;;
mov r14=r0 // clear r14
shr.u r18=r19,16 // I0|1 get byte size of existing "dirty" partition
(pKStk) br.cond.dpnt.many skip_rbs_switch
addl r17=THIS_CPU(ia64_phys_stacked_size_p8),r0 // A
mov f9=f0 // F clear f9
(pKStk) br.cond.dpnt.many skip_rbs_switch // B
mov.m ar.ccv=r0 // clear ar.ccv
(pNonSys) br.cond.dpnt.many dont_preserve_current_frame
br.cond.sptk.many rbs_switch
srlz.d // M0 ensure interruption collection is off (for cover)
shr.u r18=r19,16 // I0|1 get byte size of existing "dirty" partition
cover // B add current frame into dirty partition & set cr.ifs
;;
(pUStk) ld4 r17=[r17] // M0|1 r17 = cpu_data->phys_stacked_size_p8
mov r19=ar.bsp // M2 get new backing store pointer
mov f10=f0 // F clear f10
nop.m 0
movl r14=__kernel_syscall_via_epc // X
;;
mov.m ar.csd=r0 // M2 clear ar.csd
mov.m ar.ccv=r0 // M2 clear ar.ccv
mov b7=r14 // I0 clear b7 (hint with __kernel_syscall_via_epc)
mov.m ar.ssd=r0 // M2 clear ar.ssd
mov f11=f0 // F clear f11
br.cond.sptk.many rbs_switch // B
END(__ia64_leave_syscall)
#ifdef CONFIG_IA32_SUPPORT
@@ -891,7 +909,7 @@ GLOBAL_ENTRY(__ia64_leave_kernel)
ldf.fill f7=[r2],PT(F11)-PT(F7)
ldf.fill f8=[r3],32
;;
srlz.i // ensure interruption collection is off
srlz.d // ensure that inter. collection is off (VHPT is don't care, since text is pinned)
mov ar.ccv=r15
;;
ldf.fill f11=[r2]
@@ -951,11 +969,10 @@ GLOBAL_ENTRY(__ia64_leave_kernel)
* NOTE: alloc, loadrs, and cover can't be predicated.
*/
(pNonSys) br.cond.dpnt dont_preserve_current_frame
rbs_switch:
cover // add current frame into dirty partition and set cr.ifs
;;
mov r19=ar.bsp // get new backing store pointer
rbs_switch:
sub r16=r16,r18 // krbs = old bsp - size of dirty partition
cmp.ne p9,p0=r0,r0 // clear p9 to skip restore of cr.ifs
;;
@@ -1030,14 +1047,14 @@ rse_clear_invalid:
mov loc5=0
mov loc6=0
mov loc7=0
(pRecurse) br.call.sptk.few b0=rse_clear_invalid
(pRecurse) br.call.dptk.few b0=rse_clear_invalid
;;
mov loc8=0
mov loc9=0
cmp.ne pReturn,p0=r0,in1 // if recursion count != 0, we need to do a br.ret
mov loc10=0
mov loc11=0
(pReturn) br.ret.sptk.many b0
(pReturn) br.ret.dptk.many b0
#endif /* !CONFIG_ITANIUM */
# undef pRecurse
# undef pReturn
@@ -1261,7 +1278,7 @@ ENTRY(sys_rt_sigreturn)
stf.spill [r17]=f11
adds out0=16,sp // out0 = &sigscratch
br.call.sptk.many rp=ia64_rt_sigreturn
.ret19: .restore sp 0
.ret19: .restore sp,0
adds sp=16,sp
;;
ld8 r9=[sp] // load new ar.unat
@@ -1583,11 +1600,11 @@ sys_call_table:
data8 sys_add_key
data8 sys_request_key
data8 sys_keyctl
data8 sys_ioprio_set
data8 sys_ioprio_get // 1275
data8 sys_ni_syscall
data8 sys_ni_syscall // 1275
data8 sys_ni_syscall
data8 sys_ni_syscall
data8 sys_ni_syscall
data8 sys_ni_syscall
data8 sys_inotify_init
data8 sys_inotify_add_watch
data8 sys_inotify_rm_watch
.org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls
linux-2.6-xen-sparse/arch/ia64/kernel/head.S
+1 -1
View File
@@ -25,7 +25,7 @@
#include <asm/fpu.h>
#include <asm/kregs.h>
#include <asm/mmu_context.h>
#include <asm/offsets.h>
#include <asm/asm-offsets.h>
#include <asm/pal.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
linux-2.6-xen-sparse/arch/ia64/kernel/setup.c
+107 -23
View File
@@ -20,6 +20,7 @@
* 02/01/00 R.Seth fixed get_cpuinfo for SMP
* 01/07/99 S.Eranian added the support for command line argument
* 06/24/99 W.Drummond added boot_cpu_data.
* 05/28/05 Z. Menyhart Dynamic stride size for "flush_icache_range()"
*/
#include <linux/config.h>
#include <linux/module.h>
@@ -40,6 +41,8 @@
#include <linux/serial_core.h>
#include <linux/efi.h>
#include <linux/initrd.h>
#include <linux/platform.h>
#include <linux/pm.h>
#include <asm/ia32.h>
#include <asm/machvec.h>
@@ -72,14 +75,43 @@ DEFINE_PER_CPU(unsigned long, ia64_phys_stacked_size_p8);
unsigned long ia64_cycles_per_usec;
struct ia64_boot_param *ia64_boot_param;
struct screen_info screen_info;
unsigned long vga_console_iobase;
unsigned long vga_console_membase;
static struct resource data_resource = {
.name = "Kernel data",
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
};
static struct resource code_resource = {
.name = "Kernel code",
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
};
extern void efi_initialize_iomem_resources(struct resource *,
struct resource *);
extern char _text[], _end[], _etext[];
unsigned long ia64_max_cacheline_size;
int dma_get_cache_alignment(void)
{
return ia64_max_cacheline_size;
}
EXPORT_SYMBOL(dma_get_cache_alignment);
unsigned long ia64_iobase; /* virtual address for I/O accesses */
EXPORT_SYMBOL(ia64_iobase);
struct io_space io_space[MAX_IO_SPACES];
EXPORT_SYMBOL(io_space);
unsigned int num_io_spaces;
/*
* "flush_icache_range()" needs to know what processor dependent stride size to use
* when it makes i-cache(s) coherent with d-caches.
*/
#define I_CACHE_STRIDE_SHIFT 5 /* Safest way to go: 32 bytes by 32 bytes */
unsigned long ia64_i_cache_stride_shift = ~0;
/*
* The merge_mask variable needs to be set to (max(iommu_page_size(iommu)) - 1). This
* mask specifies a mask of address bits that must be 0 in order for two buffers to be
@@ -159,6 +191,22 @@ sort_regions (struct rsvd_region *rsvd_region, int max)
}
}
/*
* Request address space for all standard resources
*/
static int __init register_memory(void)
{
code_resource.start = ia64_tpa(_text);
code_resource.end = ia64_tpa(_etext) - 1;
data_resource.start = ia64_tpa(_etext);
data_resource.end = ia64_tpa(_end) - 1;
efi_initialize_iomem_resources(&code_resource, &data_resource);
return 0;
}
__initcall(register_memory);
/**
* reserve_memory - setup reserved memory areas
*
@@ -199,6 +247,9 @@ reserve_memory (void)
}
#endif
efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
n++;
/* end of memory marker */
rsvd_region[n].start = ~0UL;
rsvd_region[n].end = ~0UL;
@@ -232,28 +283,31 @@ find_initrd (void)
static void __init
io_port_init (void)
{
extern unsigned long ia64_iobase;
unsigned long phys_iobase;
/*
* Set `iobase' to the appropriate address in region 6 (uncached access range).
* Set `iobase' based on the EFI memory map or, failing that, the
* value firmware left in ar.k0.
*
* The EFI memory map is the "preferred" location to get the I/O port space base,
* rather the relying on AR.KR0. This should become more clear in future SAL
* specs. We'll fall back to getting it out of AR.KR0 if no appropriate entry is
* found in the memory map.
* Note that in ia32 mode, IN/OUT instructions use ar.k0 to compute
* the port's virtual address, so ia32_load_state() loads it with a
* user virtual address. But in ia64 mode, glibc uses the
* *physical* address in ar.k0 to mmap the appropriate area from
* /dev/mem, and the inX()/outX() interfaces use MMIO. In both
* cases, user-mode can only use the legacy 0-64K I/O port space.
*
* ar.k0 is not involved in kernel I/O port accesses, which can use
* any of the I/O port spaces and are done via MMIO using the
* virtual mmio_base from the appropriate io_space[].
*/
phys_iobase = efi_get_iobase();
if (phys_iobase)
/* set AR.KR0 since this is all we use it for anyway */
ia64_set_kr(IA64_KR_IO_BASE, phys_iobase);
else {
if (!phys_iobase) {
phys_iobase = ia64_get_kr(IA64_KR_IO_BASE);
printk(KERN_INFO "No I/O port range found in EFI memory map, falling back "
"to AR.KR0\n");
printk(KERN_INFO "I/O port base = 0x%lx\n", phys_iobase);
printk(KERN_INFO "No I/O port range found in EFI memory map, "
"falling back to AR.KR0 (0x%lx)\n", phys_iobase);
}
ia64_iobase = (unsigned long) ioremap(phys_iobase, 0);
ia64_set_kr(IA64_KR_IO_BASE, __pa(ia64_iobase));
/* setup legacy IO port space */
io_space[0].mmio_base = ia64_iobase;
@@ -273,26 +327,29 @@ io_port_init (void)
static inline int __init
early_console_setup (char *cmdline)
{
int earlycons = 0;
#ifdef CONFIG_XEN
if (!early_xen_console_setup(cmdline)) return 0;
if (!early_xen_console_setup(cmdline))
earlycons++;
#endif
#ifdef CONFIG_SERIAL_SGI_L1_CONSOLE
{
extern int sn_serial_console_early_setup(void);
if (!sn_serial_console_early_setup())
return 0;
earlycons++;
}
#endif
#ifdef CONFIG_EFI_PCDP
if (!efi_setup_pcdp_console(cmdline))
return 0;
earlycons++;
#endif
#ifdef CONFIG_SERIAL_8250_CONSOLE
if (!early_serial_console_init(cmdline))
return 0;
earlycons++;
#endif
return -1;
return (earlycons) ? 0 : -1;
}
static inline void
@@ -373,7 +430,7 @@ setup_arch (char **cmdline_p)
if (early_console_setup(*cmdline_p) == 0)
mark_bsp_online();
#ifdef CONFIG_ACPI_BOOT
#ifdef CONFIG_ACPI
/* Initialize the ACPI boot-time table parser */
acpi_table_init();
# ifdef CONFIG_ACPI_NUMA
@@ -408,8 +465,9 @@ setup_arch (char **cmdline_p)
#endif
cpu_init(); /* initialize the bootstrap CPU */
mmu_context_init(); /* initialize context_id bitmap */
#ifdef CONFIG_ACPI_BOOT
#ifdef CONFIG_ACPI
acpi_boot_init();
#endif
@@ -515,7 +573,7 @@ show_cpuinfo (struct seq_file *m, void *v)
c->itc_freq / 1000000, c->itc_freq % 1000000,
lpj*HZ/500000, (lpj*HZ/5000) % 100);
#ifdef CONFIG_SMP
seq_printf(m, "siblings : %u\n", c->num_log);
seq_printf(m, "siblings : %u\n", cpus_weight(cpu_core_map[cpunum]));
if (c->threads_per_core > 1 || c->cores_per_socket > 1)
seq_printf(m,
"physical id: %u\n"
@@ -625,6 +683,12 @@ setup_per_cpu_areas (void)
/* start_kernel() requires this... */
}
/*
* Calculate the max. cache line size.
*
* In addition, the minimum of the i-cache stride sizes is calculated for
* "flush_icache_range()".
*/
static void
get_max_cacheline_size (void)
{
@@ -638,6 +702,8 @@ get_max_cacheline_size (void)
printk(KERN_ERR "%s: ia64_pal_cache_summary() failed (status=%ld)\n",
__FUNCTION__, status);
max = SMP_CACHE_BYTES;
/* Safest setup for "flush_icache_range()" */
ia64_i_cache_stride_shift = I_CACHE_STRIDE_SHIFT;
goto out;
}
@@ -646,14 +712,31 @@ get_max_cacheline_size (void)
&cci);
if (status != 0) {
printk(KERN_ERR
"%s: ia64_pal_cache_config_info(l=%lu) failed (status=%ld)\n",
"%s: ia64_pal_cache_config_info(l=%lu, 2) failed (status=%ld)\n",
__FUNCTION__, l, status);
max = SMP_CACHE_BYTES;
/* The safest setup for "flush_icache_range()" */
cci.pcci_stride = I_CACHE_STRIDE_SHIFT;
cci.pcci_unified = 1;
}
line_size = 1 << cci.pcci_line_size;
if (line_size > max)
max = line_size;
}
if (!cci.pcci_unified) {
status = ia64_pal_cache_config_info(l,
/* cache_type (instruction)= */ 1,
&cci);
if (status != 0) {
printk(KERN_ERR
"%s: ia64_pal_cache_config_info(l=%lu, 1) failed (status=%ld)\n",
__FUNCTION__, l, status);
/* The safest setup for "flush_icache_range()" */
cci.pcci_stride = I_CACHE_STRIDE_SHIFT;
}
}
if (cci.pcci_stride < ia64_i_cache_stride_shift)
ia64_i_cache_stride_shift = cci.pcci_stride;
}
out:
if (max > ia64_max_cacheline_size)
ia64_max_cacheline_size = max;
@@ -782,6 +865,7 @@ cpu_init (void)
/* size of physical stacked register partition plus 8 bytes: */
__get_cpu_var(ia64_phys_stacked_size_p8) = num_phys_stacked*8 + 8;
platform_cpu_init();
pm_idle = default_idle;
}
void
linux-2.6-xen-sparse/arch/ia64/xen-mkbuildtree-pre
+4 -4
View File
@@ -13,10 +13,10 @@ then
mv net net.xen-x86
mv kernel kernel.xen-x86
mv drivers/acpi/tables.c drivers/acpi/tables.c.xen-x86
mv arch/xen/kernel drivers/xen/core
mv arch/xen arch/xen.xen-x86
mkdir arch/xen
mv arch/xen.xen-x86/configs arch/xen
# mv arch/xen/kernel drivers/xen/core
# mv arch/xen arch/xen.xen-x86
# mkdir arch/xen
# mv arch/xen.xen-x86/configs arch/xen
# mv include/asm-generic include/asm-generic.xen-x86
mv include/linux include/linux.xen-x86
mkdir include/linux
linux-2.6-xen-sparse/arch/ia64/xen/drivers/evtchn_ia64.c
+1 -1
View File
@@ -4,7 +4,7 @@
#include <linux/config.h>
#include <linux/kernel.h>
#include <asm/hw_irq.h>
#include <asm-xen/evtchn.h>
#include <xen/evtchn.h>
#define MAX_EVTCHN 1024
linux-2.6-xen-sparse/arch/ia64/xen/xenentry.S
+1 -1
View File
@@ -14,7 +14,7 @@
#include <asm/cache.h>
#include <asm/errno.h>
#include <asm/kregs.h>
#include <asm/offsets.h>
#include <asm/asm-offsets.h>
#include <asm/pgtable.h>
#include <asm/percpu.h>
#include <asm/processor.h>
linux-2.6-xen-sparse/arch/ia64/xen/xenivt.S
+1 -1
View File
@@ -35,7 +35,7 @@
#include <asm/break.h>
#include <asm/ia32.h>
#include <asm/kregs.h>
#include <asm/offsets.h>
#include <asm/asm-offsets.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
Reference in new issue
xen-project/xen
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