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.deSigned-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/Kconfig

@@ -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

arch/ia64/Makefile

@@ -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
 

arch/ia64/configs/sim_defconfig

-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

arch/ia64/hp/sim/Kconfig

-# 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
-

arch/ia64/hp/sim/Makefile

-# 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

arch/ia64/hp/sim/boot/Makefile

-#
-# 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)

arch/ia64/hp/sim/boot/boot_head.S

-/* 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)

arch/ia64/hp/sim/boot/bootloader.c

-// 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);
-}

arch/ia64/hp/sim/boot/bootloader.lds

-/* 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  .  */
-}

arch/ia64/hp/sim/boot/ssc.h

-/* 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 */

arch/ia64/hp/sim/hpsim.S

-/* 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)

arch/ia64/hp/sim/hpsim_console.c

-// 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;
-}

arch/ia64/hp/sim/hpsim_irq.c

-// 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);
-}

arch/ia64/hp/sim/hpsim_machvec.c

-#define MACHVEC_PLATFORM_NAME		hpsim
-#define MACHVEC_PLATFORM_HEADER		<asm/machvec_hpsim.h>
-#include <asm/machvec_init.h>

arch/ia64/hp/sim/hpsim_setup.c

-// 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();
-}

arch/ia64/hp/sim/hpsim_ssc.h

-/* 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 */

arch/ia64/hp/sim/simscsi.c

-// 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);

arch/ia64/include/asm/acpi.h

@@ -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";

arch/ia64/include/asm/hpsim.h

-/* 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

arch/ia64/include/asm/iosapic.h

@@ -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 */

arch/ia64/include/asm/machvec.h

@@ -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

arch/ia64/include/asm/machvec_hpsim.h

-/* 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 */

arch/ia64/kernel/Makefile

@@ -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

arch/ia64/kernel/irq_ia64.c

@@ -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

arch/ia64/kernel/setup.c

@@ -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();