microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

ia64: remove the hpsim platform 

The hpsim platform supports the HP IA64 simulator which was useful as a
bring up platform.  But it is fairly non-standard vs real IA64 system
in that it for example doesn't support ACPI.  It also comes with a
whole bunch of simulator specific drivers.  Remove it to simplify the
IA64 port.

Note that through a weird twist only them hpsim boot loader built the
vmlinux.gz file, so the makefile targets for that are moved to the
main ia64 Makefile now.

Acked-by: Tom Vaden <tom.vaden@hpe.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-18-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Christoph Hellwig 2019-08-13 09:25:03 +02:00 коммит произвёл Tony Luck
Родитель 05933aac7b
Коммит fc5bad0370
28 изменённых файлов: 26 добавлений и 2711 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

34
arch/ia64/Kconfig
Просмотреть файл

@ -10,11 +10,11 @@ config IA64
bool
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ACPI if (!IA64_HP_SIM)
select ARCH_SUPPORTS_ACPI if (!IA64_HP_SIM)
select ACPI
select ARCH_SUPPORTS_ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
select FORCE_PCI if (!IA64_HP_SIM)
select FORCE_PCI
select PCI_DOMAINS if PCI
select PCI_SYSCALL if PCI
select HAVE_UNSTABLE_SCHED_CLOCK
@ -140,7 +140,6 @@ config IA64_GENERIC
HP-zx1/sx1000 For HP systems
HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
SGI-UV For SGI UV systems
Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
If you don't know what to do, choose "generic".
@ -181,11 +180,6 @@ config IA64_SGI_UV
to select this option. If in doubt, select ia64 generic support
instead.
config IA64_HP_SIM
bool "Ski-simulator"
select SWIOTLB
depends on !PM
endchoice
choice
@ -239,14 +233,7 @@ config IA64_PAGE_SIZE_64KB
endchoice
if IA64_HP_SIM
config HZ
default 32
endif
if !IA64_HP_SIM
source "kernel/Kconfig.hz"
endif
config IA64_BRL_EMU
bool
@ -265,11 +252,6 @@ config IA64_CYCLONE
Say Y here to enable support for IBM EXA Cyclone time source.
If you're unsure, answer N.
config IOSAPIC
bool
depends on !IA64_HP_SIM
default y
config FORCE_MAX_ZONEORDER
int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
range 11 17 if !HUGETLB_PAGE
@ -373,7 +355,7 @@ config ARCH_DISCONTIGMEM_DEFAULT
config NUMA
bool "NUMA support"
depends on !IA64_HP_SIM && !FLATMEM
depends on !FLATMEM
select ACPI_NUMA if ACPI
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
@ -395,7 +377,7 @@ config NODES_SHIFT
config VIRTUAL_MEM_MAP
bool "Virtual mem map"
depends on !SPARSEMEM
default y if !IA64_HP_SIM
default y
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
@ -478,7 +460,7 @@ config IA64_HP_AML_NFW
config KEXEC
bool "kexec system call"
depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
depends on !SMP || HOTPLUG_CPU
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
@ -496,7 +478,7 @@ config KEXEC
config CRASH_DUMP
bool "kernel crash dumps"
depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU)
help
Generate crash dump after being started by kexec.
@ -518,8 +500,6 @@ endif
endmenu
source "arch/ia64/hp/sim/Kconfig"
config MSPEC
tristate "Memory special operations driver"
depends on IA64

27
arch/ia64/Makefile
Просмотреть файл

@ -39,6 +39,12 @@ $(error Sorry, you need a newer version of the assember, one that is built from
ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz)
endif
quiet_cmd_gzip = GZIP $@
cmd_gzip = cat $(real-prereqs) | gzip -n -f -9 > $@
quiet_cmd_objcopy = OBJCOPY $@
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
KBUILD_CFLAGS += $(cflags-y)
head-y := arch/ia64/kernel/head.o
@ -52,15 +58,12 @@ core-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/dig/
core-$(CONFIG_IA64_SGI_UV) += arch/ia64/uv/
drivers-$(CONFIG_PCI) += arch/ia64/pci/
drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/
drivers-$(CONFIG_IA64_HP_ZX1) += arch/ia64/hp/common/ arch/ia64/hp/zx1/
drivers-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/hp/common/ arch/ia64/hp/zx1/
drivers-$(CONFIG_IA64_GENERIC) += arch/ia64/hp/common/ arch/ia64/hp/zx1/ arch/ia64/hp/sim/ arch/ia64/uv/
drivers-$(CONFIG_IA64_GENERIC) += arch/ia64/hp/common/ arch/ia64/hp/zx1/ arch/ia64/uv/
drivers-$(CONFIG_OPROFILE) += arch/ia64/oprofile/
boot := arch/ia64/hp/sim/boot
PHONY += boot compressed check
PHONY += compressed check
all: compressed unwcheck
@ -68,22 +71,21 @@ compressed: vmlinux.gz
vmlinuz: vmlinux.gz
vmlinux.gz: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
vmlinux.gz: vmlinux.bin FORCE
$(call if_changed,gzip)
vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
unwcheck: vmlinux
-$(Q)READELF=$(READELF) $(PYTHON) $(srctree)/arch/ia64/scripts/unwcheck.py $<
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
archheaders:
$(Q)$(MAKE) $(build)=arch/ia64/kernel/syscalls all
CLEAN_FILES += vmlinux.gz bootloader
boot: lib/lib.a vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
CLEAN_FILES += vmlinux.gz
install: vmlinux.gz
sh $(srctree)/arch/ia64/install.sh $(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
@ -91,7 +93,6 @@ install: vmlinux.gz
define archhelp
echo '* compressed - Build compressed kernel image'
echo ' install - Install compressed kernel image'
echo ' boot - Build vmlinux and bootloader for Ski simulator'
echo '* unwcheck - Check vmlinux for invalid unwind info'
endef

52
arch/ia64/configs/sim_defconfig
Просмотреть файл

@ -1,52 +0,0 @@
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_IA64_HP_SIM=y
CONFIG_MCKINLEY=y
CONFIG_IA64_PAGE_SIZE_64KB=y
CONFIG_SMP=y
CONFIG_NR_CPUS=64
CONFIG_PREEMPT=y
CONFIG_IA64_PALINFO=m
CONFIG_EFI_VARS=y
CONFIG_BINFMT_MISC=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IPV6 is not set
# CONFIG_STANDALONE is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO_I8042 is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_EFI_RTC=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_HP_SIMETH=y
CONFIG_HP_SIMSERIAL=y
CONFIG_HP_SIMSERIAL_CONSOLE=y
CONFIG_HP_SIMSCSI=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_PROC_KCORE=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y

23
arch/ia64/hp/sim/Kconfig
Просмотреть файл

@ -1,23 +0,0 @@
# SPDX-License-Identifier: GPL-2.0
menu "HP Simulator drivers"
depends on IA64_HP_SIM || IA64_GENERIC
config HP_SIMETH
bool "Simulated Ethernet "
depends on NET
config HP_SIMSERIAL
bool "Simulated serial driver support"
depends on TTY
config HP_SIMSERIAL_CONSOLE
bool "Console for HP simulator"
depends on HP_SIMSERIAL
config HP_SIMSCSI
bool "Simulated SCSI disk"
depends on SCSI=y
endmenu

17
arch/ia64/hp/sim/Makefile
Просмотреть файл

@ -1,17 +0,0 @@
# SPDX-License-Identifier: GPL-2.0
#
# ia64/platform/hp/sim/Makefile
#
# Copyright (C) 2002 Hewlett-Packard Co.
# David Mosberger-Tang <davidm@hpl.hp.com>
# Copyright (C) 1999 Silicon Graphics, Inc.
# Copyright (C) Srinivasa Thirumalachar (sprasad@engr.sgi.com)
#
obj-y := hpsim_irq.o hpsim_setup.o hpsim.o
obj-$(CONFIG_IA64_GENERIC) += hpsim_machvec.o
obj-$(CONFIG_HP_SIMETH) += simeth.o
obj-$(CONFIG_HP_SIMSERIAL) += simserial.o
obj-$(CONFIG_HP_SIMSERIAL_CONSOLE) += hpsim_console.o
obj-$(CONFIG_HP_SIMSCSI) += simscsi.o

37
arch/ia64/hp/sim/boot/Makefile
Просмотреть файл

@ -1,37 +0,0 @@
#
# ia64/boot/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1998, 2003 by David Mosberger-Tang <davidm@hpl.hp.com>
#
targets-$(CONFIG_IA64_HP_SIM) += bootloader
targets := vmlinux.bin vmlinux.gz $(targets-y)
quiet_cmd_cptotop = LN $@
cmd_cptotop = ln -f $< $@
vmlinux.gz: $(obj)/vmlinux.gz $(addprefix $(obj)/,$(targets-y))
$(call cmd,cptotop)
@echo ' Kernel: $@ is ready'
boot: bootloader
bootloader: $(obj)/bootloader
$(call cmd,cptotop)
$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
LDFLAGS_bootloader = -static -T
$(obj)/bootloader: $(src)/bootloader.lds $(obj)/bootloader.o $(obj)/boot_head.o $(obj)/fw-emu.o \
lib/lib.a arch/ia64/lib/lib.a FORCE
$(call if_changed,ld)

165
arch/ia64/hp/sim/boot/boot_head.S
Просмотреть файл

@ -1,165 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 1998-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <asm/asmmacro.h>
#include <asm/pal.h>
.bss
.align 16
stack_mem:
.skip 16834
.text
/* This needs to be defined because lib/string.c:strlcat() calls it in case of error... */
GLOBAL_ENTRY(printk)
break 0
END(printk)
GLOBAL_ENTRY(_start)
.prologue
.save rp, r0
.body
movl gp = __gp
movl sp = stack_mem+16384-16
bsw.1
br.call.sptk.many rp=start_bootloader
0: nop 0 /* dummy nop to make unwinding work */
END(_start)
/*
* Set a break point on this function so that symbols are available to set breakpoints in
* the kernel being debugged.
*/
GLOBAL_ENTRY(debug_break)
br.ret.sptk.many b0
END(debug_break)
GLOBAL_ENTRY(ssc)
.regstk 5,0,0,0
mov r15=in4
break 0x80001
br.ret.sptk.many b0
END(ssc)
GLOBAL_ENTRY(jmp_to_kernel)
.regstk 2,0,0,0
mov r28=in0
mov b7=in1
br.sptk.few b7
END(jmp_to_kernel)
/*
* r28 contains the index of the PAL function
* r29--31 the args
* Return values in ret0--3 (r8--11)
*/
GLOBAL_ENTRY(pal_emulator_static)
mov r8=-1
mov r9=256
;;
cmp.gtu p6,p7=r9,r28 /* r28 <= 255? */
(p6) br.cond.sptk.few static
;;
mov r9=512
;;
cmp.gtu p6,p7=r9,r28
(p6) br.cond.sptk.few stacked
;;
static: cmp.eq p6,p7=PAL_PTCE_INFO,r28
(p7) br.cond.sptk.few 1f
;;
mov r8=0 /* status = 0 */
movl r9=0x100000000 /* tc.base */
movl r10=0x0000000200000003 /* count[0], count[1] */
movl r11=0x1000000000002000 /* stride[0], stride[1] */
br.cond.sptk.few rp
1: cmp.eq p6,p7=PAL_FREQ_RATIOS,r28
(p7) br.cond.sptk.few 1f
mov r8=0 /* status = 0 */
movl r9 =0x100000064 /* proc_ratio (1/100) */
movl r10=0x100000100 /* bus_ratio<<32 (1/256) */
movl r11=0x100000064 /* itc_ratio<<32 (1/100) */
;;
1: cmp.eq p6,p7=PAL_RSE_INFO,r28
(p7) br.cond.sptk.few 1f
mov r8=0 /* status = 0 */
mov r9=96 /* num phys stacked */
mov r10=0 /* hints */
mov r11=0
br.cond.sptk.few rp
1: cmp.eq p6,p7=PAL_CACHE_FLUSH,r28 /* PAL_CACHE_FLUSH */
(p7) br.cond.sptk.few 1f
mov r9=ar.lc
movl r8=524288 /* flush 512k million cache lines (16MB) */
;;
mov ar.lc=r8
movl r8=0xe000000000000000
;;
.loop: fc r8
add r8=32,r8
br.cloop.sptk.few .loop
sync.i
;;
srlz.i
;;
mov ar.lc=r9
mov r8=r0
;;
1: cmp.eq p6,p7=PAL_PERF_MON_INFO,r28
(p7) br.cond.sptk.few 1f
mov r8=0 /* status = 0 */
movl r9 =0x08122f04 /* generic=4 width=47 retired=8 cycles=18 */
mov r10=0 /* reserved */
mov r11=0 /* reserved */
mov r16=0xffff /* implemented PMC */
mov r17=0x3ffff /* implemented PMD */
add r18=8,r29 /* second index */
;;
st8 [r29]=r16,16 /* store implemented PMC */
st8 [r18]=r0,16 /* clear remaining bits */
;;
st8 [r29]=r0,16 /* clear remaining bits */
st8 [r18]=r0,16 /* clear remaining bits */
;;
st8 [r29]=r17,16 /* store implemented PMD */
st8 [r18]=r0,16 /* clear remaining bits */
mov r16=0xf0 /* cycles count capable PMC */
;;
st8 [r29]=r0,16 /* clear remaining bits */
st8 [r18]=r0,16 /* clear remaining bits */
mov r17=0xf0 /* retired bundles capable PMC */
;;
st8 [r29]=r16,16 /* store cycles capable */
st8 [r18]=r0,16 /* clear remaining bits */
;;
st8 [r29]=r0,16 /* clear remaining bits */
st8 [r18]=r0,16 /* clear remaining bits */
;;
st8 [r29]=r17,16 /* store retired bundle capable */
st8 [r18]=r0,16 /* clear remaining bits */
;;
st8 [r29]=r0,16 /* clear remaining bits */
st8 [r18]=r0,16 /* clear remaining bits */
;;
1: cmp.eq p6,p7=PAL_VM_SUMMARY,r28
(p7) br.cond.sptk.few 1f
mov r8=0 /* status = 0 */
movl r9=0x2044040020F1865 /* num_tc_levels=2, num_unique_tcs=4 */
/* max_itr_entry=64, max_dtr_entry=64 */
/* hash_tag_id=2, max_pkr=15 */
/* key_size=24, phys_add_size=50, vw=1 */
movl r10=0x183C /* rid_size=24, impl_va_msb=60 */
;;
1: cmp.eq p6,p7=PAL_MEM_ATTRIB,r28
(p7) br.cond.sptk.few 1f
mov r8=0 /* status = 0 */
mov r9=0x80|0x01 /* NatPage|WB */
;;
1: br.cond.sptk.few rp
stacked:
br.ret.sptk.few rp
END(pal_emulator_static)

175
arch/ia64/hp/sim/boot/bootloader.c
Просмотреть файл

@ -1,175 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* arch/ia64/hp/sim/boot/bootloader.c
*
* Loads an ELF kernel.
*
* Copyright (C) 1998-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Stephane Eranian <eranian@hpl.hp.com>
*
* 01/07/99 S.Eranian modified to pass command line arguments to kernel
*/
struct task_struct; /* forward declaration for elf.h */
#include <linux/elf.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm/elf.h>
#include <asm/intrinsics.h>
#include <asm/pal.h>
#include <asm/pgtable.h>
#include <asm/sal.h>
#include "ssc.h"
struct disk_req {
unsigned long addr;
unsigned len;
};
struct disk_stat {
int fd;
unsigned count;
};
extern void jmp_to_kernel (unsigned long bp, unsigned long e_entry);
extern struct ia64_boot_param *sys_fw_init (const char *args, int arglen);
extern void debug_break (void);
static void
cons_write (const char *buf)
{
unsigned long ch;
while ((ch = *buf++) != '\0') {
ssc(ch, 0, 0, 0, SSC_PUTCHAR);
if (ch == '\n')
ssc('\r', 0, 0, 0, SSC_PUTCHAR);
}
}
#define MAX_ARGS 32
void
start_bootloader (void)
{
static char mem[4096];
static char buffer[1024];
unsigned long off;
int fd, i;
struct disk_req req;
struct disk_stat stat;
struct elfhdr *elf;
struct elf_phdr *elf_phdr; /* program header */
unsigned long e_entry, e_phoff, e_phnum;
register struct ia64_boot_param *bp;
char *kpath, *args;
long arglen = 0;
ssc(0, 0, 0, 0, SSC_CONSOLE_INIT);
/*
* S.Eranian: extract the commandline argument from the simulator
*
* The expected format is as follows:
*
* kernelname args...
*
* Both are optional but you can't have the second one without the first.
*/
arglen = ssc((long) buffer, 0, 0, 0, SSC_GET_ARGS);
kpath = "vmlinux";
args = buffer;
if (arglen > 0) {
kpath = buffer;
while (*args != ' ' && *args != '\0')
++args, --arglen;
if (*args == ' ')
*args++ = '\0', --arglen;
}
if (arglen <= 0) {
args = "";
arglen = 1;
}
fd = ssc((long) kpath, 1, 0, 0, SSC_OPEN);
if (fd < 0) {
cons_write(kpath);
cons_write(": file not found, reboot now\n");
for(;;);
}
stat.fd = fd;
off = 0;
req.len = sizeof(mem);
req.addr = (long) mem;
ssc(fd, 1, (long) &req, off, SSC_READ);
ssc((long) &stat, 0, 0, 0, SSC_WAIT_COMPLETION);
elf = (struct elfhdr *) mem;
if (elf->e_ident[0] == 0x7f && strncmp(elf->e_ident + 1, "ELF", 3) != 0) {
cons_write("not an ELF file\n");
return;
}
if (elf->e_type != ET_EXEC) {
cons_write("not an ELF executable\n");
return;
}
if (!elf_check_arch(elf)) {
cons_write("kernel not for this processor\n");
return;
}
e_entry = elf->e_entry;
e_phnum = elf->e_phnum;
e_phoff = elf->e_phoff;
cons_write("loading ");
cons_write(kpath);
cons_write("...\n");
for (i = 0; i < e_phnum; ++i) {
req.len = sizeof(*elf_phdr);
req.addr = (long) mem;
ssc(fd, 1, (long) &req, e_phoff, SSC_READ);
ssc((long) &stat, 0, 0, 0, SSC_WAIT_COMPLETION);
if (stat.count != sizeof(*elf_phdr)) {
cons_write("failed to read phdr\n");
return;
}
e_phoff += sizeof(*elf_phdr);
elf_phdr = (struct elf_phdr *) mem;
if (elf_phdr->p_type != PT_LOAD)
continue;
req.len = elf_phdr->p_filesz;
req.addr = __pa(elf_phdr->p_paddr);
ssc(fd, 1, (long) &req, elf_phdr->p_offset, SSC_READ);
ssc((long) &stat, 0, 0, 0, SSC_WAIT_COMPLETION);
memset((char *)__pa(elf_phdr->p_paddr) + elf_phdr->p_filesz, 0,
elf_phdr->p_memsz - elf_phdr->p_filesz);
}
ssc(fd, 0, 0, 0, SSC_CLOSE);
cons_write("starting kernel...\n");
/* fake an I/O base address: */
ia64_setreg(_IA64_REG_AR_KR0, 0xffffc000000UL);
bp = sys_fw_init(args, arglen);
ssc(0, (long) kpath, 0, 0, SSC_LOAD_SYMBOLS);
debug_break();
jmp_to_kernel((unsigned long) bp, e_entry);
cons_write("kernel returned!\n");
ssc(-1, 0, 0, 0, SSC_EXIT);
}

67
arch/ia64/hp/sim/boot/bootloader.lds
Просмотреть файл

@ -1,67 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
OUTPUT_FORMAT("elf64-ia64-little")
OUTPUT_ARCH(ia64)
ENTRY(_start)
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = 0x100000;
_text = .;
.text : { *(__ivt_section) *(.text) }
_etext = .;
/* Global data */
_data = .;
.rodata : { *(.rodata) *(.rodata.*) }
.data : { *(.data) *(.gnu.linkonce.d*) CONSTRUCTORS }
__gp = ALIGN (8) + 0x200000;
.got : { *(.got.plt) *(.got) }
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
.sdata : { *(.sdata) }
_edata = .;
__bss_start = .;
.sbss : { *(.sbss) *(.scommon) }
.bss : { *(.bss) *(COMMON) }
. = ALIGN(64 / 8);
__bss_stop = .;
_end = . ;
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
/* These must appear regardless of . */
}

374
arch/ia64/hp/sim/boot/fw-emu.c
Просмотреть файл

@ -1,374 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* PAL & SAL emulation.
*
* Copyright (C) 1998-2001 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#ifdef CONFIG_PCI
# include <linux/pci.h>
#endif
#include <linux/efi.h>
#include <asm/io.h>
#include <asm/pal.h>
#include <asm/sal.h>
#include <asm/setup.h>
#include "ssc.h"
#define MB (1024*1024UL)
#define SIMPLE_MEMMAP 1
#if SIMPLE_MEMMAP
# define NUM_MEM_DESCS 4
#else
# define NUM_MEM_DESCS 16
#endif
static char fw_mem[( sizeof(struct ia64_boot_param)
+ sizeof(efi_system_table_t)
+ sizeof(efi_runtime_services_t)
+ 1*sizeof(efi_config_table_t)
+ sizeof(struct ia64_sal_systab)
+ sizeof(struct ia64_sal_desc_entry_point)
+ NUM_MEM_DESCS*(sizeof(efi_memory_desc_t))
+ 1024)] __attribute__ ((aligned (8)));
#define SECS_PER_HOUR (60 * 60)
#define SECS_PER_DAY (SECS_PER_HOUR * 24)
/* Compute the `struct tm' representation of *T,
offset OFFSET seconds east of UTC,
and store year, yday, mon, mday, wday, hour, min, sec into *TP.
Return nonzero if successful. */
int
offtime (unsigned long t, efi_time_t *tp)
{
const unsigned short int __mon_yday[2][13] =
{
/* Normal years. */
{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
/* Leap years. */
{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
};
long int days, rem, y;
const unsigned short int *ip;
days = t / SECS_PER_DAY;
rem = t % SECS_PER_DAY;
while (rem < 0) {
rem += SECS_PER_DAY;
--days;
}
while (rem >= SECS_PER_DAY) {
rem -= SECS_PER_DAY;
++days;
}
tp->hour = rem / SECS_PER_HOUR;
rem %= SECS_PER_HOUR;
tp->minute = rem / 60;
tp->second = rem % 60;
/* January 1, 1970 was a Thursday. */
y = 1970;
# define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
# define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
# define __isleap(year) \
((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
while (days < 0 || days >= (__isleap (y) ? 366 : 365)) {
/* Guess a corrected year, assuming 365 days per year. */
long int yg = y + days / 365 - (days % 365 < 0);
/* Adjust DAYS and Y to match the guessed year. */
days -= ((yg - y) * 365 + LEAPS_THRU_END_OF (yg - 1)
- LEAPS_THRU_END_OF (y - 1));
y = yg;
}
tp->year = y;
ip = __mon_yday[__isleap(y)];
for (y = 11; days < (long int) ip[y]; --y)
continue;
days -= ip[y];
tp->month = y + 1;
tp->day = days + 1;
return 1;
}
extern void pal_emulator_static (void);
/* Macro to emulate SAL call using legacy IN and OUT calls to CF8, CFC etc.. */
#define BUILD_CMD(addr) ((0x80000000 | (addr)) & ~3)
#define REG_OFFSET(addr) (0x00000000000000FF & (addr))
#define DEVICE_FUNCTION(addr) (0x000000000000FF00 & (addr))
#define BUS_NUMBER(addr) (0x0000000000FF0000 & (addr))
static efi_status_t
fw_efi_get_time (efi_time_t *tm, efi_time_cap_t *tc)
{
#if defined(CONFIG_IA64_HP_SIM) || defined(CONFIG_IA64_GENERIC)
struct {
int tv_sec; /* must be 32bits to work */
int tv_usec;
} tv32bits;
ssc((unsigned long) &tv32bits, 0, 0, 0, SSC_GET_TOD);
memset(tm, 0, sizeof(*tm));
offtime(tv32bits.tv_sec, tm);
if (tc)
memset(tc, 0, sizeof(*tc));
#else
# error Not implemented yet...
#endif
return EFI_SUCCESS;
}
static void
efi_reset_system (int reset_type, efi_status_t status, unsigned long data_size, efi_char16_t *data)
{
#if defined(CONFIG_IA64_HP_SIM) || defined(CONFIG_IA64_GENERIC)
ssc(status, 0, 0, 0, SSC_EXIT);
#else
# error Not implemented yet...
#endif
}
static efi_status_t
efi_unimplemented (void)
{
return EFI_UNSUPPORTED;
}
static struct sal_ret_values
sal_emulator (long index, unsigned long in1, unsigned long in2,
unsigned long in3, unsigned long in4, unsigned long in5,
unsigned long in6, unsigned long in7)
{
long r9 = 0;
long r10 = 0;
long r11 = 0;
long status;
/*
* Don't do a "switch" here since that gives us code that
* isn't self-relocatable.
*/
status = 0;
if (index == SAL_FREQ_BASE) {
if (in1 == SAL_FREQ_BASE_PLATFORM)
r9 = 200000000;
else if (in1 == SAL_FREQ_BASE_INTERVAL_TIMER) {
/*
* Is this supposed to be the cr.itc frequency
* or something platform specific? The SAL
* doc ain't exactly clear on this...
*/
r9 = 700000000;
} else if (in1 == SAL_FREQ_BASE_REALTIME_CLOCK)
r9 = 1;
else
status = -1;
} else if (index == SAL_SET_VECTORS) {
;
} else if (index == SAL_GET_STATE_INFO) {
;
} else if (index == SAL_GET_STATE_INFO_SIZE) {
;
} else if (index == SAL_CLEAR_STATE_INFO) {
;
} else if (index == SAL_MC_RENDEZ) {
;
} else if (index == SAL_MC_SET_PARAMS) {
;
} else if (index == SAL_CACHE_FLUSH) {
;
} else if (index == SAL_CACHE_INIT) {
;
#ifdef CONFIG_PCI
} else if (index == SAL_PCI_CONFIG_READ) {
/*
* in1 contains the PCI configuration address and in2
* the size of the read. The value that is read is
* returned via the general register r9.
*/
outl(BUILD_CMD(in1), 0xCF8);
if (in2 == 1) /* Reading byte */
r9 = inb(0xCFC + ((REG_OFFSET(in1) & 3)));
else if (in2 == 2) /* Reading word */
r9 = inw(0xCFC + ((REG_OFFSET(in1) & 2)));
else /* Reading dword */
r9 = inl(0xCFC);
status = PCIBIOS_SUCCESSFUL;
} else if (index == SAL_PCI_CONFIG_WRITE) {
/*
* in1 contains the PCI configuration address, in2 the
* size of the write, and in3 the actual value to be
* written out.
*/
outl(BUILD_CMD(in1), 0xCF8);
if (in2 == 1) /* Writing byte */
outb(in3, 0xCFC + ((REG_OFFSET(in1) & 3)));
else if (in2 == 2) /* Writing word */
outw(in3, 0xCFC + ((REG_OFFSET(in1) & 2)));
else /* Writing dword */
outl(in3, 0xCFC);
status = PCIBIOS_SUCCESSFUL;
#endif /* CONFIG_PCI */
} else if (index == SAL_UPDATE_PAL) {
;
} else {
status = -1;
}
return ((struct sal_ret_values) {status, r9, r10, r11});
}
struct ia64_boot_param *
sys_fw_init (const char *args, int arglen)
{
efi_system_table_t *efi_systab;
efi_runtime_services_t *efi_runtime;
efi_config_table_t *efi_tables;
struct ia64_sal_systab *sal_systab;
efi_memory_desc_t *efi_memmap, *md;
unsigned long *pal_desc, *sal_desc;
struct ia64_sal_desc_entry_point *sal_ed;
struct ia64_boot_param *bp;
unsigned char checksum = 0;
char *cp, *cmd_line;
int i = 0;
# define MAKE_MD(typ, attr, start, end) \
do { \
md = efi_memmap + i++; \
md->type = typ; \
md->pad = 0; \
md->phys_addr = start; \
md->virt_addr = 0; \
md->num_pages = (end - start) >> 12; \
md->attribute = attr; \
} while (0)
memset(fw_mem, 0, sizeof(fw_mem));
pal_desc = (unsigned long *) &pal_emulator_static;
sal_desc = (unsigned long *) &sal_emulator;
cp = fw_mem;
efi_systab = (void *) cp; cp += sizeof(*efi_systab);
efi_runtime = (void *) cp; cp += sizeof(*efi_runtime);
efi_tables = (void *) cp; cp += sizeof(*efi_tables);
sal_systab = (void *) cp; cp += sizeof(*sal_systab);
sal_ed = (void *) cp; cp += sizeof(*sal_ed);
efi_memmap = (void *) cp; cp += NUM_MEM_DESCS*sizeof(*efi_memmap);
bp = (void *) cp; cp += sizeof(*bp);
cmd_line = (void *) cp;
if (args) {
if (arglen >= 1024)
arglen = 1023;
memcpy(cmd_line, args, arglen);
} else {
arglen = 0;
}
cmd_line[arglen] = '\0';
memset(efi_systab, 0, sizeof(*efi_systab));
efi_systab->hdr.signature = EFI_SYSTEM_TABLE_SIGNATURE;
efi_systab->hdr.revision = ((1 << 16) | 00);
efi_systab->hdr.headersize = sizeof(efi_systab->hdr);
efi_systab->fw_vendor = __pa("H\0e\0w\0l\0e\0t\0t\0-\0P\0a\0c\0k\0a\0r\0d\0\0");
efi_systab->fw_revision = 1;
efi_systab->runtime = (void *) __pa(efi_runtime);
efi_systab->nr_tables = 1;
efi_systab->tables = __pa(efi_tables);
efi_runtime->hdr.signature = EFI_RUNTIME_SERVICES_SIGNATURE;
efi_runtime->hdr.revision = EFI_RUNTIME_SERVICES_REVISION;
efi_runtime->hdr.headersize = sizeof(efi_runtime->hdr);
efi_runtime->get_time = (void *)__pa(&fw_efi_get_time);
efi_runtime->set_time = (void *)__pa(&efi_unimplemented);
efi_runtime->get_wakeup_time = (void *)__pa(&efi_unimplemented);
efi_runtime->set_wakeup_time = (void *)__pa(&efi_unimplemented);
efi_runtime->set_virtual_address_map = (void *)__pa(&efi_unimplemented);
efi_runtime->get_variable = (void *)__pa(&efi_unimplemented);
efi_runtime->get_next_variable = (void *)__pa(&efi_unimplemented);
efi_runtime->set_variable = (void *)__pa(&efi_unimplemented);
efi_runtime->get_next_high_mono_count = (void *)__pa(&efi_unimplemented);
efi_runtime->reset_system = (void *)__pa(&efi_reset_system);
efi_tables->guid = SAL_SYSTEM_TABLE_GUID;
efi_tables->table = __pa(sal_systab);
/* fill in the SAL system table: */
memcpy(sal_systab->signature, "SST_", 4);
sal_systab->size = sizeof(*sal_systab);
sal_systab->sal_rev_minor = 1;
sal_systab->sal_rev_major = 0;
sal_systab->entry_count = 1;
#ifdef CONFIG_IA64_GENERIC
strcpy(sal_systab->oem_id, "Generic");
strcpy(sal_systab->product_id, "IA-64 system");
#endif
#ifdef CONFIG_IA64_HP_SIM
strcpy(sal_systab->oem_id, "Hewlett-Packard");
strcpy(sal_systab->product_id, "HP-simulator");
#endif
/* fill in an entry point: */
sal_ed->type = SAL_DESC_ENTRY_POINT;
sal_ed->pal_proc = __pa(pal_desc[0]);
sal_ed->sal_proc = __pa(sal_desc[0]);
sal_ed->gp = __pa(sal_desc[1]);
for (cp = (char *) sal_systab; cp < (char *) efi_memmap; ++cp)
checksum += *cp;
sal_systab->checksum = -checksum;
#if SIMPLE_MEMMAP
/* simulate free memory at physical address zero */
MAKE_MD(EFI_BOOT_SERVICES_DATA, EFI_MEMORY_WB, 0*MB, 1*MB);
MAKE_MD(EFI_PAL_CODE, EFI_MEMORY_WB, 1*MB, 2*MB);
MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB, 2*MB, 130*MB);
MAKE_MD(EFI_CONVENTIONAL_MEMORY, EFI_MEMORY_WB, 4096*MB, 4128*MB);
#else
MAKE_MD( 4, 0x9, 0x0000000000000000, 0x0000000000001000);
MAKE_MD( 7, 0x9, 0x0000000000001000, 0x000000000008a000);
MAKE_MD( 4, 0x9, 0x000000000008a000, 0x00000000000a0000);
MAKE_MD( 5, 0x8000000000000009, 0x00000000000c0000, 0x0000000000100000);
MAKE_MD( 7, 0x9, 0x0000000000100000, 0x0000000004400000);
MAKE_MD( 2, 0x9, 0x0000000004400000, 0x0000000004be5000);
MAKE_MD( 7, 0x9, 0x0000000004be5000, 0x000000007f77e000);
MAKE_MD( 6, 0x8000000000000009, 0x000000007f77e000, 0x000000007fb94000);
MAKE_MD( 6, 0x8000000000000009, 0x000000007fb94000, 0x000000007fb95000);
MAKE_MD( 6, 0x8000000000000009, 0x000000007fb95000, 0x000000007fc00000);
MAKE_MD(13, 0x8000000000000009, 0x000000007fc00000, 0x000000007fc3a000);
MAKE_MD( 7, 0x9, 0x000000007fc3a000, 0x000000007fea0000);
MAKE_MD( 5, 0x8000000000000009, 0x000000007fea0000, 0x000000007fea8000);
MAKE_MD( 7, 0x9, 0x000000007fea8000, 0x000000007feab000);
MAKE_MD( 5, 0x8000000000000009, 0x000000007feab000, 0x000000007ffff000);
MAKE_MD( 7, 0x9, 0x00000000ff400000, 0x0000000104000000);
#endif
bp->efi_systab = __pa(&fw_mem);
bp->efi_memmap = __pa(efi_memmap);
bp->efi_memmap_size = NUM_MEM_DESCS*sizeof(efi_memory_desc_t);
bp->efi_memdesc_size = sizeof(efi_memory_desc_t);
bp->efi_memdesc_version = 1;
bp->command_line = __pa(cmd_line);
bp->console_info.num_cols = 80;
bp->console_info.num_rows = 25;
bp->console_info.orig_x = 0;
bp->console_info.orig_y = 24;
bp->fpswa = 0;
return bp;
}

36
arch/ia64/hp/sim/boot/ssc.h
Просмотреть файл

@ -1,36 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 1998-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Stephane Eranian <eranian@hpl.hp.com>
*/
#ifndef ssc_h
#define ssc_h
/* Simulator system calls: */
#define SSC_CONSOLE_INIT 20
#define SSC_GETCHAR 21
#define SSC_PUTCHAR 31
#define SSC_OPEN 50
#define SSC_CLOSE 51
#define SSC_READ 52
#define SSC_WRITE 53
#define SSC_GET_COMPLETION 54
#define SSC_WAIT_COMPLETION 55
#define SSC_CONNECT_INTERRUPT 58
#define SSC_GENERATE_INTERRUPT 59
#define SSC_SET_PERIODIC_INTERRUPT 60
#define SSC_GET_RTC 65
#define SSC_EXIT 66
#define SSC_LOAD_SYMBOLS 69
#define SSC_GET_TOD 74
#define SSC_GET_ARGS 75
/*
* Simulator system call.
*/
extern long ssc (long arg0, long arg1, long arg2, long arg3, int nr);
#endif /* ssc_h */

11
arch/ia64/hp/sim/hpsim.S
Просмотреть файл

@ -1,11 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#include <asm/asmmacro.h>
/*
* Simulator system call.
*/
GLOBAL_ENTRY(ia64_ssc)
mov r15=r36
break 0x80001
br.ret.sptk.many rp
END(ia64_ssc)

77
arch/ia64/hp/sim/hpsim_console.c
Просмотреть файл

@ -1,77 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Platform dependent support for HP simulator.
*
* Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/tty.h>
#include <linux/kdev_t.h>
#include <linux/console.h>
#include <asm/delay.h>
#include <asm/irq.h>
#include <asm/pal.h>
#include <asm/machvec.h>
#include <asm/pgtable.h>
#include <asm/sal.h>
#include <asm/hpsim.h>
#include "hpsim_ssc.h"
static int simcons_init (struct console *, char *);
static void simcons_write (struct console *, const char *, unsigned);
static struct tty_driver *simcons_console_device (struct console *, int *);
static struct console hpsim_cons = {
.name = "simcons",
.write = simcons_write,
.device = simcons_console_device,
.setup = simcons_init,
.flags = CON_PRINTBUFFER,
.index = -1,
};
static int
simcons_init (struct console *cons, char *options)
{
return 0;
}
static void
simcons_write (struct console *cons, const char *buf, unsigned count)
{
unsigned long ch;
while (count-- > 0) {
ch = *buf++;
ia64_ssc(ch, 0, 0, 0, SSC_PUTCHAR);
if (ch == '\n')
ia64_ssc('\r', 0, 0, 0, SSC_PUTCHAR);
}
}
static struct tty_driver *simcons_console_device (struct console *c, int *index)
{
*index = c->index;
return hp_simserial_driver;
}
int simcons_register(void)
{
if (!ia64_platform_is("hpsim"))
return 1;
if (hpsim_cons.flags & CON_ENABLED)
return 1;
register_console(&hpsim_cons);
return 0;
}

76
arch/ia64/hp/sim/hpsim_irq.c
Просмотреть файл

@ -1,76 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Platform dependent support for HP simulator.
*
* Copyright (C) 1998-2001 Hewlett-Packard Co
* Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/irq.h>
#include "hpsim_ssc.h"
static unsigned int
hpsim_irq_startup(struct irq_data *data)
{
return 0;
}
static void
hpsim_irq_noop(struct irq_data *data)
{
}
static int
hpsim_set_affinity_noop(struct irq_data *d, const struct cpumask *b, bool f)
{
return 0;
}
static struct irq_chip irq_type_hp_sim = {
.name = "hpsim",
.irq_startup = hpsim_irq_startup,
.irq_shutdown = hpsim_irq_noop,
.irq_enable = hpsim_irq_noop,
.irq_disable = hpsim_irq_noop,
.irq_ack = hpsim_irq_noop,
.irq_set_affinity = hpsim_set_affinity_noop,
};
static void hpsim_irq_set_chip(int irq)
{
struct irq_chip *chip = irq_get_chip(irq);
if (chip == &no_irq_chip)
irq_set_chip(irq, &irq_type_hp_sim);
}
static void hpsim_connect_irq(int intr, int irq)
{
ia64_ssc(intr, irq, 0, 0, SSC_CONNECT_INTERRUPT);
}
int hpsim_get_irq(int intr)
{
int irq = assign_irq_vector(AUTO_ASSIGN);
if (irq >= 0) {
hpsim_irq_set_chip(irq);
irq_set_handler(irq, handle_simple_irq);
hpsim_connect_irq(intr, irq);
}
return irq;
}
void __init
hpsim_irq_init (void)
{
int i;
for_each_active_irq(i)
hpsim_irq_set_chip(i);
}

3
arch/ia64/hp/sim/hpsim_machvec.c
Просмотреть файл

@ -1,3 +0,0 @@
#define MACHVEC_PLATFORM_NAME hpsim
#define MACHVEC_PLATFORM_HEADER <asm/machvec_hpsim.h>
#include <asm/machvec_init.h>

41
arch/ia64/hp/sim/hpsim_setup.c
Просмотреть файл

@ -1,41 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Platform dependent support for HP simulator.
*
* Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
*/
#include <linux/console.h>
#include <linux/init.h>
#include <linux/kdev_t.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/param.h>
#include <linux/root_dev.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/delay.h>
#include <asm/irq.h>
#include <asm/pal.h>
#include <asm/machvec.h>
#include <asm/pgtable.h>
#include <asm/sal.h>
#include <asm/hpsim.h>
#include "hpsim_ssc.h"
void
ia64_ctl_trace (long on)
{
ia64_ssc(on, 0, 0, 0, SSC_CTL_TRACE);
}
void __init
hpsim_setup (char **cmdline_p)
{
ROOT_DEV = Root_SDA1; /* default to first SCSI drive */
simcons_register();
}

37
arch/ia64/hp/sim/hpsim_ssc.h
Просмотреть файл

@ -1,37 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Platform dependent support for HP simulator.
*
* Copyright (C) 1998, 1999 Hewlett-Packard Co
* Copyright (C) 1998, 1999 David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
*/
#ifndef _IA64_PLATFORM_HPSIM_SSC_H
#define _IA64_PLATFORM_HPSIM_SSC_H
/* Simulator system calls: */
#define SSC_CONSOLE_INIT 20
#define SSC_GETCHAR 21
#define SSC_PUTCHAR 31
#define SSC_CONNECT_INTERRUPT 58
#define SSC_GENERATE_INTERRUPT 59
#define SSC_SET_PERIODIC_INTERRUPT 60
#define SSC_GET_RTC 65
#define SSC_EXIT 66
#define SSC_LOAD_SYMBOLS 69
#define SSC_GET_TOD 74
#define SSC_CTL_TRACE 76
#define SSC_NETDEV_PROBE 100
#define SSC_NETDEV_SEND 101
#define SSC_NETDEV_RECV 102
#define SSC_NETDEV_ATTACH 103
#define SSC_NETDEV_DETACH 104
/*
* Simulator system call.
*/
extern long ia64_ssc (long arg0, long arg1, long arg2, long arg3, int nr);
#endif /* _IA64_PLATFORM_HPSIM_SSC_H */

510
arch/ia64/hp/sim/simeth.c
Просмотреть файл

@ -1,510 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Simulated Ethernet Driver
*
* Copyright (C) 1999-2001, 2003 Hewlett-Packard Co
* Stephane Eranian <eranian@hpl.hp.com>
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/in.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/inetdevice.h>
#include <linux/if_ether.h>
#include <linux/if_arp.h>
#include <linux/skbuff.h>
#include <linux/notifier.h>
#include <linux/bitops.h>
#include <asm/irq.h>
#include <asm/hpsim.h>
#include "hpsim_ssc.h"
#define SIMETH_RECV_MAX 10
/*
* Maximum possible received frame for Ethernet.
* We preallocate an sk_buff of that size to avoid costly
* memcpy for temporary buffer into sk_buff. We do basically
* what's done in other drivers, like eepro with a ring.
* The difference is, of course, that we don't have real DMA !!!
*/
#define SIMETH_FRAME_SIZE ETH_FRAME_LEN
#define NETWORK_INTR 8
struct simeth_local {
struct net_device_stats stats;
int simfd; /* descriptor in the simulator */
};
static int simeth_probe1(void);
static int simeth_open(struct net_device *dev);
static int simeth_close(struct net_device *dev);
static int simeth_tx(struct sk_buff *skb, struct net_device *dev);
static int simeth_rx(struct net_device *dev);
static struct net_device_stats *simeth_get_stats(struct net_device *dev);
static irqreturn_t simeth_interrupt(int irq, void *dev_id);
static void set_multicast_list(struct net_device *dev);
static int simeth_device_event(struct notifier_block *this,unsigned long event, void *ptr);
static char *simeth_version="0.3";
/*
* This variable is used to establish a mapping between the Linux/ia64 kernel
* and the host linux kernel.
*
* As of today, we support only one card, even though most of the code
* is ready for many more. The mapping is then:
* linux/ia64 -> linux/x86
* eth0 -> eth1
*
* In the future, we some string operations, we could easily support up
* to 10 cards (0-9).
*
* The default mapping can be changed on the kernel command line by
* specifying simeth=ethX (or whatever string you want).
*/
static char *simeth_device="eth0"; /* default host interface to use */
static volatile unsigned int card_count; /* how many cards "found" so far */
static int simeth_debug; /* set to 1 to get debug information */
/*
* Used to catch IFF_UP & IFF_DOWN events
*/
static struct notifier_block simeth_dev_notifier = {
simeth_device_event,
NULL
};
/*
* Function used when using a kernel command line option.
*
* Format: simeth=interface_name (like eth0)
*/
static int __init
simeth_setup(char *str)
{
simeth_device = str;
return 1;
}
__setup("simeth=", simeth_setup);
/*
* Function used to probe for simeth devices when not installed
* as a loadable module
*/
int __init
simeth_probe (void)
{
int r;
printk(KERN_INFO "simeth: v%s\n", simeth_version);
r = simeth_probe1();
if (r == 0) register_netdevice_notifier(&simeth_dev_notifier);
return r;
}
static inline int
netdev_probe(char *name, unsigned char *ether)
{
return ia64_ssc(__pa(name), __pa(ether), 0,0, SSC_NETDEV_PROBE);
}
static inline int
netdev_attach(int fd, int irq, unsigned int ipaddr)
{
/* this puts the host interface in the right mode (start interrupting) */
return ia64_ssc(fd, ipaddr, 0,0, SSC_NETDEV_ATTACH);
}
static inline int
netdev_detach(int fd)
{
/*
* inactivate the host interface (don't interrupt anymore) */
return ia64_ssc(fd, 0,0,0, SSC_NETDEV_DETACH);
}
static inline int
netdev_send(int fd, unsigned char *buf, unsigned int len)
{
return ia64_ssc(fd, __pa(buf), len, 0, SSC_NETDEV_SEND);
}
static inline int
netdev_read(int fd, unsigned char *buf, unsigned int len)
{
return ia64_ssc(fd, __pa(buf), len, 0, SSC_NETDEV_RECV);
}
static const struct net_device_ops simeth_netdev_ops = {
.ndo_open = simeth_open,
.ndo_stop = simeth_close,
.ndo_start_xmit = simeth_tx,
.ndo_get_stats = simeth_get_stats,
.ndo_set_rx_mode = set_multicast_list, /* not yet used */
};
/*
* Function shared with module code, so cannot be in init section
*
* So far this function "detects" only one card (test_&_set) but could
* be extended easily.
*
* Return:
* - -ENODEV is no device found
* - -ENOMEM is no more memory
* - 0 otherwise
*/
static int
simeth_probe1(void)
{
unsigned char mac_addr[ETH_ALEN];
struct simeth_local *local;
struct net_device *dev;
int fd, err, rc;
/*
* XXX Fix me
* let's support just one card for now
*/
if (test_and_set_bit(0, &card_count))
return -ENODEV;
/*
* check with the simulator for the device
*/
fd = netdev_probe(simeth_device, mac_addr);
if (fd == -1)
return -ENODEV;
dev = alloc_etherdev(sizeof(struct simeth_local));
if (!dev)
return -ENOMEM;
memcpy(dev->dev_addr, mac_addr, sizeof(mac_addr));
local = netdev_priv(dev);
local->simfd = fd; /* keep track of underlying file descriptor */
dev->netdev_ops = &simeth_netdev_ops;
err = register_netdev(dev);
if (err) {
free_netdev(dev);
return err;
}
/*
* attach the interrupt in the simulator, this does enable interrupts
* until a netdev_attach() is called
*/
if ((rc = hpsim_get_irq(NETWORK_INTR)) < 0)
panic("%s: out of interrupt vectors!\n", __func__);
dev->irq = rc;
printk(KERN_INFO "%s: hosteth=%s simfd=%d, HwAddr=%pm, IRQ %d\n",
dev->name, simeth_device, local->simfd, dev->dev_addr, dev->irq);
return 0;
}
/*
* actually binds the device to an interrupt vector
*/
static int
simeth_open(struct net_device *dev)
{
if (request_irq(dev->irq, simeth_interrupt, 0, "simeth", dev)) {
printk(KERN_WARNING "simeth: unable to get IRQ %d.\n", dev->irq);
return -EAGAIN;
}
netif_start_queue(dev);
return 0;
}
/* copied from lapbether.c */
static __inline__ int dev_is_ethdev(struct net_device *dev)
{
return ( dev->type == ARPHRD_ETHER && strncmp(dev->name, "dummy", 5));
}
/*
* Handler for IFF_UP or IFF_DOWN
*
* The reason for that is that we don't want to be interrupted when the
* interface is down. There is no way to unconnect in the simualtor. Instead
* we use this function to shutdown packet processing in the frame filter
* in the simulator. Thus no interrupts are generated
*
*
* That's also the place where we pass the IP address of this device to the
* simulator so that that we can start filtering packets for it
*
* There may be a better way of doing this, but I don't know which yet.
*/
static int
simeth_device_event(struct notifier_block *this,unsigned long event, void *ptr)
{
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
struct simeth_local *local;
struct in_device *in_dev;
struct in_ifaddr **ifap = NULL;
struct in_ifaddr *ifa = NULL;
int r;
if ( ! dev ) {
printk(KERN_WARNING "simeth_device_event dev=0\n");
return NOTIFY_DONE;
}
if (dev_net(dev) != &init_net)
return NOTIFY_DONE;
if ( event != NETDEV_UP && event != NETDEV_DOWN ) return NOTIFY_DONE;
/*
* Check whether or not it's for an ethernet device
*
* XXX Fixme: This works only as long as we support one
* type of ethernet device.
*/
if ( !dev_is_ethdev(dev) ) return NOTIFY_DONE;
if ((in_dev=dev->ip_ptr) != NULL) {
for (ifap=&in_dev->ifa_list; (ifa=*ifap) != NULL; ifap=&ifa->ifa_next)
if (strcmp(dev->name, ifa->ifa_label) == 0) break;
}
if ( ifa == NULL ) {
printk(KERN_ERR "simeth_open: can't find device %s's ifa\n", dev->name);
return NOTIFY_DONE;
}
printk(KERN_INFO "simeth_device_event: %s ipaddr=0x%x\n",
dev->name, ntohl(ifa->ifa_local));
/*
* XXX Fix me
* if the device was up, and we're simply reconfiguring it, not sure
* we get DOWN then UP.
*/
local = netdev_priv(dev);
/* now do it for real */
r = event == NETDEV_UP ?
netdev_attach(local->simfd, dev->irq, ntohl(ifa->ifa_local)):
netdev_detach(local->simfd);
printk(KERN_INFO "simeth: netdev_attach/detach: event=%s ->%d\n",
event == NETDEV_UP ? "attach":"detach", r);
return NOTIFY_DONE;
}
static int
simeth_close(struct net_device *dev)
{
netif_stop_queue(dev);
free_irq(dev->irq, dev);
return 0;
}
/*
* Only used for debug
*/
static void
frame_print(unsigned char *from, unsigned char *frame, int len)
{
int i;
printk("%s: (%d) %02x", from, len, frame[0] & 0xff);
for(i=1; i < 6; i++ ) {
printk(":%02x", frame[i] &0xff);
}
printk(" %2x", frame[6] &0xff);
for(i=7; i < 12; i++ ) {
printk(":%02x", frame[i] &0xff);
}
printk(" [%02x%02x]\n", frame[12], frame[13]);
for(i=14; i < len; i++ ) {
printk("%02x ", frame[i] &0xff);
if ( (i%10)==0) printk("\n");
}
printk("\n");
}
/*
* Function used to transmit of frame, very last one on the path before
* going to the simulator.
*/
static int
simeth_tx(struct sk_buff *skb, struct net_device *dev)
{
struct simeth_local *local = netdev_priv(dev);
#if 0
/* ensure we have at least ETH_ZLEN bytes (min frame size) */
unsigned int length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
/* Where do the extra padding bytes comes from inthe skbuff ? */
#else
/* the real driver in the host system is going to take care of that
* or maybe it's the NIC itself.
*/
unsigned int length = skb->len;
#endif
local->stats.tx_bytes += skb->len;
local->stats.tx_packets++;
if (simeth_debug > 5) frame_print("simeth_tx", skb->data, length);
netdev_send(local->simfd, skb->data, length);
/*
* we are synchronous on write, so we don't simulate a
* trasnmit complete interrupt, thus we don't need to arm a tx
*/
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
static inline struct sk_buff *
make_new_skb(struct net_device *dev)
{
struct sk_buff *nskb;
/*
* The +2 is used to make sure that the IP header is nicely
* aligned (on 4byte boundary I assume 14+2=16)
*/
nskb = dev_alloc_skb(SIMETH_FRAME_SIZE + 2);
if ( nskb == NULL ) {
printk(KERN_NOTICE "%s: memory squeeze. dropping packet.\n", dev->name);
return NULL;
}
skb_reserve(nskb, 2); /* Align IP on 16 byte boundaries */
skb_put(nskb,SIMETH_FRAME_SIZE);
return nskb;
}
/*
* called from interrupt handler to process a received frame
*/
static int
simeth_rx(struct net_device *dev)
{
struct simeth_local *local;
struct sk_buff *skb;
int len;
int rcv_count = SIMETH_RECV_MAX;
local = netdev_priv(dev);
/*
* the loop concept has been borrowed from other drivers
* looks to me like it's a throttling thing to avoid pushing to many
* packets at one time into the stack. Making sure we can process them
* upstream and make forward progress overall
*/
do {
if ( (skb=make_new_skb(dev)) == NULL ) {
printk(KERN_NOTICE "%s: memory squeeze. dropping packet.\n", dev->name);
local->stats.rx_dropped++;
return 0;
}
/*
* Read only one frame at a time
*/
len = netdev_read(local->simfd, skb->data, SIMETH_FRAME_SIZE);
if ( len == 0 ) {
if ( simeth_debug > 0 ) printk(KERN_WARNING "%s: count=%d netdev_read=0\n",
dev->name, SIMETH_RECV_MAX-rcv_count);
break;
}
#if 0
/*
* XXX Fix me
* Should really do a csum+copy here
*/
skb_copy_to_linear_data(skb, frame, len);
#endif
skb->protocol = eth_type_trans(skb, dev);
if ( simeth_debug > 6 ) frame_print("simeth_rx", skb->data, len);
/*
* push the packet up & trigger software interrupt
*/
netif_rx(skb);
local->stats.rx_packets++;
local->stats.rx_bytes += len;
} while ( --rcv_count );
return len; /* 0 = nothing left to read, otherwise, we can try again */
}
/*
* Interrupt handler (Yes, we can do it too !!!)
*/
static irqreturn_t
simeth_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
/*
* very simple loop because we get interrupts only when receiving
*/
while (simeth_rx(dev));
return IRQ_HANDLED;
}
static struct net_device_stats *
simeth_get_stats(struct net_device *dev)
{
struct simeth_local *local = netdev_priv(dev);
return &local->stats;
}
/* fake multicast ability */
static void
set_multicast_list(struct net_device *dev)
{
printk(KERN_WARNING "%s: set_multicast_list called\n", dev->name);
}
__initcall(simeth_probe);

373
arch/ia64/hp/sim/simscsi.c
Просмотреть файл

@ -1,373 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Simulated SCSI driver.
*
* Copyright (C) 1999, 2001-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Stephane Eranian <eranian@hpl.hp.com>
*
* 02/01/15 David Mosberger Updated for v2.5.1
* 99/12/18 David Mosberger Added support for READ10/WRITE10 needed by linux v2.3.33
*/
#include <linux/blkdev.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <asm/irq.h>
#include "hpsim_ssc.h"
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#define DEBUG_SIMSCSI 0
#define SIMSCSI_REQ_QUEUE_LEN 64
#define DEFAULT_SIMSCSI_ROOT "/var/ski-disks/sd"
/* Simulator system calls: */
#define SSC_OPEN 50
#define SSC_CLOSE 51
#define SSC_READ 52
#define SSC_WRITE 53
#define SSC_GET_COMPLETION 54
#define SSC_WAIT_COMPLETION 55
#define SSC_WRITE_ACCESS 2
#define SSC_READ_ACCESS 1
#if DEBUG_SIMSCSI
int simscsi_debug;
# define DBG simscsi_debug
#else
# define DBG 0
#endif
static struct Scsi_Host *host;
static void simscsi_interrupt (unsigned long val);
static DECLARE_TASKLET(simscsi_tasklet, simscsi_interrupt, 0);
struct disk_req {
unsigned long addr;
unsigned len;
};
struct disk_stat {
int fd;
unsigned count;
};
static int desc[16] = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
};
static struct queue_entry {
struct scsi_cmnd *sc;
} queue[SIMSCSI_REQ_QUEUE_LEN];
static int rd, wr;
static atomic_t num_reqs = ATOMIC_INIT(0);
/* base name for default disks */
static char *simscsi_root = DEFAULT_SIMSCSI_ROOT;
#define MAX_ROOT_LEN 128
/*
* used to setup a new base for disk images
* to use /foo/bar/disk[a-z] as disk images
* you have to specify simscsi=/foo/bar/disk on the command line
*/
static int __init
simscsi_setup (char *s)
{
/* XXX Fix me we may need to strcpy() ? */
if (strlen(s) > MAX_ROOT_LEN) {
printk(KERN_ERR "simscsi_setup: prefix too long---using default %s\n",
simscsi_root);
} else
simscsi_root = s;
return 1;
}
__setup("simscsi=", simscsi_setup);
static void
simscsi_interrupt (unsigned long val)
{
struct scsi_cmnd *sc;
while ((sc = queue[rd].sc) != NULL) {
atomic_dec(&num_reqs);
queue[rd].sc = NULL;
if (DBG)
printk("simscsi_interrupt: done with %u\n",
sc->request->tag);
(*sc->scsi_done)(sc);
rd = (rd + 1) % SIMSCSI_REQ_QUEUE_LEN;
}
}
static int
simscsi_biosparam (struct scsi_device *sdev, struct block_device *n,
sector_t capacity, int ip[])
{
ip[0] = 64; /* heads */
ip[1] = 32; /* sectors */
ip[2] = capacity >> 11; /* cylinders */
return 0;
}
static void
simscsi_sg_readwrite (struct scsi_cmnd *sc, int mode, unsigned long offset)
{
int i;
struct scatterlist *sl;
struct disk_stat stat;
struct disk_req req;
stat.fd = desc[sc->device->id];
scsi_for_each_sg(sc, sl, scsi_sg_count(sc), i) {
req.addr = __pa(sg_virt(sl));
req.len = sl->length;
if (DBG)
printk("simscsi_sg_%s @ %lx (off %lx) use_sg=%d len=%d\n",
mode == SSC_READ ? "read":"write", req.addr, offset,
scsi_sg_count(sc) - i, sl->length);
ia64_ssc(stat.fd, 1, __pa(&req), offset, mode);
ia64_ssc(__pa(&stat), 0, 0, 0, SSC_WAIT_COMPLETION);
/* should not happen in our case */
if (stat.count != req.len) {
sc->result = DID_ERROR << 16;
return;
}
offset += sl->length;
}
sc->result = GOOD;
}
/*
* function handling both READ_6/WRITE_6 (non-scatter/gather mode)
* commands.
* Added 02/26/99 S.Eranian
*/
static void
simscsi_readwrite6 (struct scsi_cmnd *sc, int mode)
{
unsigned long offset;
offset = (((sc->cmnd[1] & 0x1f) << 16) | (sc->cmnd[2] << 8) | sc->cmnd[3])*512;
simscsi_sg_readwrite(sc, mode, offset);
}
static size_t
simscsi_get_disk_size (int fd)
{
struct disk_stat stat;
size_t bit, sectors = 0;
struct disk_req req;
char buf[512];
/*
* This is a bit kludgey: the simulator doesn't provide a
* direct way of determining the disk size, so we do a binary
* search, assuming a maximum disk size of 128GB.
*/
for (bit = (128UL << 30)/512; bit != 0; bit >>= 1) {
req.addr = __pa(&buf);
req.len = sizeof(buf);
ia64_ssc(fd, 1, __pa(&req), ((sectors | bit) - 1)*512, SSC_READ);
stat.fd = fd;
ia64_ssc(__pa(&stat), 0, 0, 0, SSC_WAIT_COMPLETION);
if (stat.count == sizeof(buf))
sectors |= bit;
}
return sectors - 1; /* return last valid sector number */
}
static void
simscsi_readwrite10 (struct scsi_cmnd *sc, int mode)
{
unsigned long offset;
offset = (((unsigned long)sc->cmnd[2] << 24)
| ((unsigned long)sc->cmnd[3] << 16)
| ((unsigned long)sc->cmnd[4] << 8)
| ((unsigned long)sc->cmnd[5] << 0))*512UL;
simscsi_sg_readwrite(sc, mode, offset);
}
static int
simscsi_queuecommand_lck (struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
{
unsigned int target_id = sc->device->id;
char fname[MAX_ROOT_LEN+16];
size_t disk_size;
char *buf;
char localbuf[36];
#if DEBUG_SIMSCSI
register long sp asm ("sp");
if (DBG)
printk("simscsi_queuecommand: target=%d,cmnd=%u,sc=%u,sp=%lx,done=%p\n",
target_id, sc->cmnd[0], sc->request->tag, sp, done);
#endif
sc->result = DID_BAD_TARGET << 16;
sc->scsi_done = done;
if (target_id <= 15 && sc->device->lun == 0) {
switch (sc->cmnd[0]) {
case INQUIRY:
if (scsi_bufflen(sc) < 35) {
break;
}
sprintf (fname, "%s%c", simscsi_root, 'a' + target_id);
desc[target_id] = ia64_ssc(__pa(fname), SSC_READ_ACCESS|SSC_WRITE_ACCESS,
0, 0, SSC_OPEN);
if (desc[target_id] < 0) {
/* disk doesn't exist... */
break;
}
buf = localbuf;
buf[0] = 0; /* magnetic disk */
buf[1] = 0; /* not a removable medium */
buf[2] = 2; /* SCSI-2 compliant device */
buf[3] = 2; /* SCSI-2 response data format */
buf[4] = 31; /* additional length (bytes) */
buf[5] = 0; /* reserved */
buf[6] = 0; /* reserved */
buf[7] = 0; /* various flags */
memcpy(buf + 8, "HP SIMULATED DISK 0.00", 28);
scsi_sg_copy_from_buffer(sc, buf, 36);
sc->result = GOOD;
break;
case TEST_UNIT_READY:
sc->result = GOOD;
break;
case READ_6:
if (desc[target_id] < 0 )
break;
simscsi_readwrite6(sc, SSC_READ);
break;
case READ_10:
if (desc[target_id] < 0 )
break;
simscsi_readwrite10(sc, SSC_READ);
break;
case WRITE_6:
if (desc[target_id] < 0)
break;
simscsi_readwrite6(sc, SSC_WRITE);
break;
case WRITE_10:
if (desc[target_id] < 0)
break;
simscsi_readwrite10(sc, SSC_WRITE);
break;
case READ_CAPACITY:
if (desc[target_id] < 0 || scsi_bufflen(sc) < 8) {
break;
}
buf = localbuf;
disk_size = simscsi_get_disk_size(desc[target_id]);
buf[0] = (disk_size >> 24) & 0xff;
buf[1] = (disk_size >> 16) & 0xff;
buf[2] = (disk_size >> 8) & 0xff;
buf[3] = (disk_size >> 0) & 0xff;
/* set block size of 512 bytes: */
buf[4] = 0;
buf[5] = 0;
buf[6] = 2;
buf[7] = 0;
scsi_sg_copy_from_buffer(sc, buf, 8);
sc->result = GOOD;
break;
case MODE_SENSE:
case MODE_SENSE_10:
/* sd.c uses this to determine whether disk does write-caching. */
scsi_sg_copy_from_buffer(sc, (char *)empty_zero_page,
PAGE_SIZE);
sc->result = GOOD;
break;
case START_STOP:
printk(KERN_ERR "START_STOP\n");
break;
default:
panic("simscsi: unknown SCSI command %u\n", sc->cmnd[0]);
}
}
if (sc->result == DID_BAD_TARGET) {
sc->result |= DRIVER_SENSE << 24;
sc->sense_buffer[0] = 0x70;
sc->sense_buffer[2] = 0x00;
}
if (atomic_read(&num_reqs) >= SIMSCSI_REQ_QUEUE_LEN) {
panic("Attempt to queue command while command is pending!!");
}
atomic_inc(&num_reqs);
queue[wr].sc = sc;
wr = (wr + 1) % SIMSCSI_REQ_QUEUE_LEN;
tasklet_schedule(&simscsi_tasklet);
return 0;
}
static DEF_SCSI_QCMD(simscsi_queuecommand)
static int
simscsi_host_reset (struct scsi_cmnd *sc)
{
printk(KERN_ERR "simscsi_host_reset: not implemented\n");
return 0;
}
static struct scsi_host_template driver_template = {
.name = "simulated SCSI host adapter",
.proc_name = "simscsi",
.queuecommand = simscsi_queuecommand,
.eh_host_reset_handler = simscsi_host_reset,
.bios_param = simscsi_biosparam,
.can_queue = SIMSCSI_REQ_QUEUE_LEN,
.this_id = -1,
.sg_tablesize = SG_ALL,
.max_sectors = 1024,
.cmd_per_lun = SIMSCSI_REQ_QUEUE_LEN,
.dma_boundary = PAGE_SIZE - 1,
};
static int __init
simscsi_init(void)
{
int error;
host = scsi_host_alloc(&driver_template, 0);
if (!host)
return -ENOMEM;
error = scsi_add_host(host, NULL);
if (error)
goto free_host;
scsi_scan_host(host);
return 0;
free_host:
scsi_host_put(host);
return error;
}
device_initcall(simscsi_init);

521
arch/ia64/hp/sim/simserial.c
Просмотреть файл

@ -1,521 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Simulated Serial Driver (fake serial)
*
* This driver is mostly used for bringup purposes and will go away.
* It has a strong dependency on the system console. All outputs
* are rerouted to the same facility as the one used by printk which, in our
* case means sys_sim.c console (goes via the simulator).
*
* Copyright (C) 1999-2000, 2002-2003 Hewlett-Packard Co
* Stephane Eranian <eranian@hpl.hp.com>
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/sched/debug.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/major.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/capability.h>
#include <linux/circ_buf.h>
#include <linux/console.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/serial.h>
#include <linux/sysrq.h>
#include <linux/uaccess.h>
#include <asm/hpsim.h>
#include "hpsim_ssc.h"
#undef SIMSERIAL_DEBUG /* define this to get some debug information */
#define KEYBOARD_INTR 3 /* must match with simulator! */
#define NR_PORTS 1 /* only one port for now */
struct serial_state {
struct tty_port port;
struct circ_buf xmit;
int irq;
int x_char;
};
static struct serial_state rs_table[NR_PORTS];
struct tty_driver *hp_simserial_driver;
static struct console *console;
static void receive_chars(struct tty_port *port)
{
unsigned char ch;
static unsigned char seen_esc = 0;
while ( (ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR)) ) {
if (ch == 27 && seen_esc == 0) {
seen_esc = 1;
continue;
} else if (seen_esc == 1 && ch == 'O') {
seen_esc = 2;
continue;
} else if (seen_esc == 2) {
if (ch == 'P') /* F1 */
show_state();
#ifdef CONFIG_MAGIC_SYSRQ
if (ch == 'S') { /* F4 */
do {
ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR);
} while (!ch);
handle_sysrq(ch);
}
#endif
seen_esc = 0;
continue;
}
seen_esc = 0;
if (tty_insert_flip_char(port, ch, TTY_NORMAL) == 0)
break;
}
tty_flip_buffer_push(port);
}
/*
* This is the serial driver's interrupt routine for a single port
*/
static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
{
struct serial_state *info = dev_id;
receive_chars(&info->port);
return IRQ_HANDLED;
}
/*
* -------------------------------------------------------------------
* Here ends the serial interrupt routines.
* -------------------------------------------------------------------
*/
static int rs_put_char(struct tty_struct *tty, unsigned char ch)
{
struct serial_state *info = tty->driver_data;
unsigned long flags;
if (!info->xmit.buf)
return 0;
local_irq_save(flags);
if (CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) == 0) {
local_irq_restore(flags);
return 0;
}
info->xmit.buf[info->xmit.head] = ch;
info->xmit.head = (info->xmit.head + 1) & (SERIAL_XMIT_SIZE-1);
local_irq_restore(flags);
return 1;
}
static void transmit_chars(struct tty_struct *tty, struct serial_state *info,
int *intr_done)
{
int count;
unsigned long flags;
local_irq_save(flags);
if (info->x_char) {
char c = info->x_char;
console->write(console, &c, 1);
info->x_char = 0;
goto out;
}
if (info->xmit.head == info->xmit.tail || tty->stopped) {
#ifdef SIMSERIAL_DEBUG
printk("transmit_chars: head=%d, tail=%d, stopped=%d\n",
info->xmit.head, info->xmit.tail, tty->stopped);
#endif
goto out;
}
/*
* We removed the loop and try to do it in to chunks. We need
* 2 operations maximum because it's a ring buffer.
*
* First from current to tail if possible.
* Then from the beginning of the buffer until necessary
*/
count = min(CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE),
SERIAL_XMIT_SIZE - info->xmit.tail);
console->write(console, info->xmit.buf+info->xmit.tail, count);
info->xmit.tail = (info->xmit.tail+count) & (SERIAL_XMIT_SIZE-1);
/*
* We have more at the beginning of the buffer
*/
count = CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
if (count) {
console->write(console, info->xmit.buf, count);
info->xmit.tail += count;
}
out:
local_irq_restore(flags);
}
static void rs_flush_chars(struct tty_struct *tty)
{
struct serial_state *info = tty->driver_data;
if (info->xmit.head == info->xmit.tail || tty->stopped ||
!info->xmit.buf)
return;
transmit_chars(tty, info, NULL);
}
static int rs_write(struct tty_struct * tty,
const unsigned char *buf, int count)
{
struct serial_state *info = tty->driver_data;
int c, ret = 0;
unsigned long flags;
if (!info->xmit.buf)
return 0;
local_irq_save(flags);
while (1) {
c = CIRC_SPACE_TO_END(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
if (count < c)
c = count;
if (c <= 0) {
break;
}
memcpy(info->xmit.buf + info->xmit.head, buf, c);
info->xmit.head = ((info->xmit.head + c) &
(SERIAL_XMIT_SIZE-1));
buf += c;
count -= c;
ret += c;
}
local_irq_restore(flags);
/*
* Hey, we transmit directly from here in our case
*/
if (CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) &&
!tty->stopped)
transmit_chars(tty, info, NULL);
return ret;
}
static int rs_write_room(struct tty_struct *tty)
{
struct serial_state *info = tty->driver_data;
return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
}
static int rs_chars_in_buffer(struct tty_struct *tty)
{
struct serial_state *info = tty->driver_data;
return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
}
static void rs_flush_buffer(struct tty_struct *tty)
{
struct serial_state *info = tty->driver_data;
unsigned long flags;
local_irq_save(flags);
info->xmit.head = info->xmit.tail = 0;
local_irq_restore(flags);
tty_wakeup(tty);
}
/*
* This function is used to send a high-priority XON/XOFF character to
* the device
*/
static void rs_send_xchar(struct tty_struct *tty, char ch)
{
struct serial_state *info = tty->driver_data;
info->x_char = ch;
if (ch) {
/*
* I guess we could call console->write() directly but
* let's do that for now.
*/
transmit_chars(tty, info, NULL);
}
}
/*
* ------------------------------------------------------------
* rs_throttle()
*
* This routine is called by the upper-layer tty layer to signal that
* incoming characters should be throttled.
* ------------------------------------------------------------
*/
static void rs_throttle(struct tty_struct * tty)
{
if (I_IXOFF(tty))
rs_send_xchar(tty, STOP_CHAR(tty));
printk(KERN_INFO "simrs_throttle called\n");
}
static void rs_unthrottle(struct tty_struct * tty)
{
struct serial_state *info = tty->driver_data;
if (I_IXOFF(tty)) {
if (info->x_char)
info->x_char = 0;
else
rs_send_xchar(tty, START_CHAR(tty));
}
printk(KERN_INFO "simrs_unthrottle called\n");
}
static int rs_setserial(struct tty_struct *tty, struct serial_struct *ss)
{
return 0;
}
static int rs_getserial(struct tty_struct *tty, struct serial_struct *ss)
{
return 0;
}
static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
{
if ((cmd != TIOCSERCONFIG) && (cmd != TIOCMIWAIT)) {
if (tty_io_error(tty))
return -EIO;
}
switch (cmd) {
case TIOCMIWAIT:
return 0;
case TIOCSERCONFIG:
case TIOCSERGETLSR: /* Get line status register */
return -EINVAL;
}
return -ENOIOCTLCMD;
}
/*
* This routine will shutdown a serial port; interrupts are disabled, and
* DTR is dropped if the hangup on close termio flag is on.
*/
static void shutdown(struct tty_port *port)
{
struct serial_state *info = container_of(port, struct serial_state,
port);
unsigned long flags;
local_irq_save(flags);
if (info->irq)
free_irq(info->irq, info);
if (info->xmit.buf) {
free_page((unsigned long) info->xmit.buf);
info->xmit.buf = NULL;
}
local_irq_restore(flags);
}
static void rs_close(struct tty_struct *tty, struct file * filp)
{
struct serial_state *info = tty->driver_data;
tty_port_close(&info->port, tty, filp);
}
static void rs_hangup(struct tty_struct *tty)
{
struct serial_state *info = tty->driver_data;
rs_flush_buffer(tty);
tty_port_hangup(&info->port);
}
static int activate(struct tty_port *port, struct tty_struct *tty)
{
struct serial_state *state = container_of(port, struct serial_state,
port);
unsigned long flags, page;
int retval = 0;
page = get_zeroed_page(GFP_KERNEL);
if (!page)
return -ENOMEM;
local_irq_save(flags);
if (state->xmit.buf)
free_page(page);
else
state->xmit.buf = (unsigned char *) page;
if (state->irq) {
retval = request_irq(state->irq, rs_interrupt_single, 0,
"simserial", state);
if (retval)
goto errout;
}
state->xmit.head = state->xmit.tail = 0;
errout:
local_irq_restore(flags);
return retval;
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port, linking in its async structure into
* the IRQ chain. It also performs the serial-specific
* initialization for the tty structure.
*/
static int rs_open(struct tty_struct *tty, struct file * filp)
{
struct serial_state *info = rs_table + tty->index;
struct tty_port *port = &info->port;
tty->driver_data = info;
port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
/*
* figure out which console to use (should be one already)
*/
console = console_drivers;
while (console) {
if ((console->flags & CON_ENABLED) && console->write) break;
console = console->next;
}
return tty_port_open(port, tty, filp);
}
/*
* /proc fs routines....
*/
static int rs_proc_show(struct seq_file *m, void *v)
{
int i;
seq_printf(m, "simserinfo:1.0\n");
for (i = 0; i < NR_PORTS; i++)
seq_printf(m, "%d: uart:16550 port:3F8 irq:%d\n",
i, rs_table[i].irq);
return 0;
}
static const struct tty_operations hp_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
.put_char = rs_put_char,
.flush_chars = rs_flush_chars,
.write_room = rs_write_room,
.chars_in_buffer = rs_chars_in_buffer,
.flush_buffer = rs_flush_buffer,
.ioctl = rs_ioctl,
.throttle = rs_throttle,
.unthrottle = rs_unthrottle,
.send_xchar = rs_send_xchar,
.set_serial = rs_setserial,
.get_serial = rs_getserial,
.hangup = rs_hangup,
.proc_show = rs_proc_show,
};
static const struct tty_port_operations hp_port_ops = {
.activate = activate,
.shutdown = shutdown,
};
static int __init simrs_init(void)
{
struct serial_state *state;
int retval;
if (!ia64_platform_is("hpsim"))
return -ENODEV;
hp_simserial_driver = alloc_tty_driver(NR_PORTS);
if (!hp_simserial_driver)
return -ENOMEM;
printk(KERN_INFO "SimSerial driver with no serial options enabled\n");
/* Initialize the tty_driver structure */
hp_simserial_driver->driver_name = "simserial";
hp_simserial_driver->name = "ttyS";
hp_simserial_driver->major = TTY_MAJOR;
hp_simserial_driver->minor_start = 64;
hp_simserial_driver->type = TTY_DRIVER_TYPE_SERIAL;
hp_simserial_driver->subtype = SERIAL_TYPE_NORMAL;
hp_simserial_driver->init_termios = tty_std_termios;
hp_simserial_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
hp_simserial_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(hp_simserial_driver, &hp_ops);
state = rs_table;
tty_port_init(&state->port);
state->port.ops = &hp_port_ops;
state->port.close_delay = 0; /* XXX really 0? */
retval = hpsim_get_irq(KEYBOARD_INTR);
if (retval < 0) {
printk(KERN_ERR "%s: out of interrupt vectors!\n",
__func__);
goto err_free_tty;
}
state->irq = retval;
/* the port is imaginary */
printk(KERN_INFO "ttyS0 at 0x03f8 (irq = %d) is a 16550\n", state->irq);
tty_port_link_device(&state->port, hp_simserial_driver, 0);
retval = tty_register_driver(hp_simserial_driver);
if (retval) {
printk(KERN_ERR "Couldn't register simserial driver\n");
goto err_free_tty;
}
return 0;
err_free_tty:
put_tty_driver(hp_simserial_driver);
tty_port_destroy(&state->port);
return retval;
}
#ifndef MODULE
__initcall(simrs_init);
#endif

4
arch/ia64/include/asm/acpi.h
Просмотреть файл

@ -37,9 +37,7 @@ const char *acpi_get_sysname (void);
#else
static inline const char *acpi_get_sysname (void)
{
# if defined (CONFIG_IA64_HP_SIM)
return "hpsim";
# elif defined (CONFIG_IA64_HP_ZX1)
# if defined (CONFIG_IA64_HP_ZX1)
return "hpzx1";
# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
return "hpzx1_swiotlb";

17
arch/ia64/include/asm/hpsim.h
Просмотреть файл

@ -1,17 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASMIA64_HPSIM_H
#define _ASMIA64_HPSIM_H
#ifndef CONFIG_HP_SIMSERIAL_CONSOLE
static inline int simcons_register(void) { return 1; }
#else
int simcons_register(void);
#endif
struct tty_driver;
extern struct tty_driver *hp_simserial_driver;
extern int hpsim_get_irq(int intr);
void ia64_ctl_trace(long on);
#endif

12
arch/ia64/include/asm/iosapic.h
Просмотреть файл

@ -52,8 +52,6 @@
#ifndef __ASSEMBLY__
#ifdef CONFIG_IOSAPIC
#define NR_IOSAPICS 256
#define iosapic_pcat_compat_init ia64_native_iosapic_pcat_compat_init
@ -103,16 +101,6 @@ extern int __init iosapic_register_platform_intr (u32 int_type,
#ifdef CONFIG_NUMA
extern void map_iosapic_to_node (unsigned int, int);
#endif
#else
#define iosapic_system_init(pcat_compat) do { } while (0)
#define iosapic_init(address,gsi_base) (-EINVAL)
#define iosapic_remove(gsi_base) (-ENODEV)
#define iosapic_register_intr(gsi,polarity,trigger) (gsi)
#define iosapic_unregister_intr(irq) do { } while (0)
#define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger) do { } while (0)
#define iosapic_register_platform_intr(type,gsi,pmi,eid,id, \
polarity,trigger) (gsi)
#endif
# endif /* !__ASSEMBLY__ */
#endif /* __ASM_IA64_IOSAPIC_H */

11
arch/ia64/include/asm/machvec.h
Просмотреть файл

@ -16,7 +16,6 @@
struct device;
typedef void ia64_mv_setup_t (char **);
typedef void ia64_mv_irq_init_t (void);
typedef void ia64_mv_dma_init (void);
typedef const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
@ -27,9 +26,7 @@ machvec_noop (void)
extern void machvec_setup (char **);
# if defined (CONFIG_IA64_HP_SIM)
# include <asm/machvec_hpsim.h>
# elif defined (CONFIG_IA64_DIG)
# if defined (CONFIG_IA64_DIG)
# include <asm/machvec_dig.h>
# elif defined(CONFIG_IA64_DIG_VTD)
# include <asm/machvec_dig_vtd.h>
@ -46,7 +43,6 @@ extern void machvec_setup (char **);
# else
# define ia64_platform_name ia64_mv.name
# define platform_setup ia64_mv.setup
# define platform_irq_init ia64_mv.irq_init
# define platform_dma_init ia64_mv.dma_init
# define platform_dma_get_ops ia64_mv.dma_get_ops
# endif
@ -59,7 +55,6 @@ extern void machvec_setup (char **);
struct ia64_machine_vector {
const char *name;
ia64_mv_setup_t *setup;
ia64_mv_irq_init_t *irq_init;
ia64_mv_dma_init *dma_init;
ia64_mv_dma_get_ops *dma_get_ops;
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
@ -68,7 +63,6 @@ struct ia64_machine_vector {
{ \
#name, \
platform_setup, \
platform_irq_init, \
platform_dma_init, \
platform_dma_get_ops, \
}
@ -91,9 +85,6 @@ extern const struct dma_map_ops *dma_get_ops(struct device *);
#ifndef platform_setup
# define platform_setup machvec_setup
#endif
#ifndef platform_irq_init
# define platform_irq_init machvec_noop
#endif
#ifndef platform_dma_init
# define platform_dma_init swiotlb_dma_init
#endif

19
arch/ia64/include/asm/machvec_hpsim.h
Просмотреть файл

@ -1,19 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_MACHVEC_HPSIM_h
#define _ASM_IA64_MACHVEC_HPSIM_h
extern ia64_mv_setup_t hpsim_setup;
extern ia64_mv_irq_init_t hpsim_irq_init;
/*
* This stuff has dual use!
*
* For a generic kernel, the macros are used to initialize the
* platform's machvec structure. When compiling a non-generic kernel,
* the macros are used directly.
*/
#define ia64_platform_name "hpsim"
#define platform_setup hpsim_setup
#define platform_irq_init hpsim_irq_init
#endif /* _ASM_IA64_MACHVEC_HPSIM_h */

3
arch/ia64/kernel/Makefile
Просмотреть файл

@ -12,13 +12,12 @@ extra-y := head.o vmlinux.lds
obj-y := entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o \
irq_lsapic.o ivt.o machvec.o pal.o patch.o process.o perfmon.o ptrace.o sal.o \
salinfo.o setup.o signal.o sys_ia64.o time.o traps.o unaligned.o \
unwind.o mca.o mca_asm.o topology.o dma-mapping.o
unwind.o mca.o mca_asm.o topology.o dma-mapping.o iosapic.o
obj-$(CONFIG_ACPI) += acpi.o acpi-ext.o
obj-$(CONFIG_IA64_BRL_EMU) += brl_emu.o
obj-$(CONFIG_IA64_PALINFO) += palinfo.o
obj-$(CONFIG_IOSAPIC) += iosapic.o
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_SMP) += smp.o smpboot.o
obj-$(CONFIG_NUMA) += numa.o

2
arch/ia64/kernel/irq_ia64.c
Просмотреть файл

@ -53,7 +53,6 @@
#define IRQ_USED (1)
#define IRQ_RSVD (2)
/* These can be overridden in platform_irq_init */
int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR;
int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR;
@ -648,7 +647,6 @@ init_IRQ (void)
#ifdef CONFIG_PERFMON
pfm_init_percpu();
#endif
platform_irq_init();
}
void

13
arch/ia64/kernel/setup.c
Просмотреть файл

@ -63,7 +63,6 @@
#include <asm/smp.h>
#include <asm/tlbflush.h>
#include <asm/unistd.h>
#include <asm/hpsim.h>
#if defined(CONFIG_SMP) && (IA64_CPU_SIZE > PAGE_SIZE)
# error "struct cpuinfo_ia64 too big!"
@ -461,16 +460,11 @@ io_port_init (void)
static inline int __init
early_console_setup (char *cmdline)
{
int earlycons = 0;
#ifdef CONFIG_EFI_PCDP
if (!efi_setup_pcdp_console(cmdline))
earlycons++;
return 0;
#endif
if (!simcons_register())
earlycons++;
return (earlycons) ? 0 : -1;
return -1;
}
static inline void
@ -608,9 +602,6 @@ setup_arch (char **cmdline_p)
ia64_mca_init();
platform_setup(cmdline_p);
#ifndef CONFIG_IA64_HP_SIM
check_sal_cache_flush();
#endif
paging_init();
clear_sched_clock_stable();