[PATCH] Add support for HP zx1 systems.

arch/ia64/Makefile

@@ -33,16 +33,11 @@ ifeq ($(CONFIG_ITANIUM_BSTEP_SPECIFIC),y)
 endif
 
 ifdef CONFIG_IA64_GENERIC
-	CORE_FILES      :=      arch/$(ARCH)/hp/hp.a	\
-				arch/$(ARCH)/sn/sn.o	\
-				arch/$(ARCH)/dig/dig.a	\
-				arch/$(ARCH)/sn/io/sgiio.o \
+	CORE_FILES      :=      arch/$(ARCH)/hp/hp.o			\
+				arch/$(ARCH)/dig/dig.a			\
 				$(CORE_FILES)
 	SUBDIRS		:=	arch/$(ARCH)/hp		\
-				arch/$(ARCH)/sn/sn1	\
-				arch/$(ARCH)/sn		\
 				arch/$(ARCH)/dig	\
-				arch/$(ARCH)/sn/io	\
 				$(SUBDIRS)
 
 else # !GENERIC
@@ -50,7 +45,16 @@ else # !GENERIC
 ifdef CONFIG_IA64_HP_SIM
         SUBDIRS         :=      arch/$(ARCH)/hp		\
                                 $(SUBDIRS)
-        CORE_FILES      :=      arch/$(ARCH)/hp/hp.a	\
+        CORE_FILES      :=      arch/$(ARCH)/hp/hp.o	\
+                                $(CORE_FILES)
+endif
+
+ifdef CONFIG_IA64_HP_ZX1
+        SUBDIRS         :=      arch/$(ARCH)/hp				\
+				arch/$(ARCH)/dig			\
+                                $(SUBDIRS)
+        CORE_FILES      :=      arch/$(ARCH)/hp/hp.o			\
+				arch/$(ARCH)/dig/dig.a			\
                                 $(CORE_FILES)
 endif
 

arch/ia64/config.in

@@ -22,6 +22,7 @@ choice 'IA-64 system type'					\
 	"generic		CONFIG_IA64_GENERIC		\
 	 DIG-compliant		CONFIG_IA64_DIG			\
 	 HP-simulator		CONFIG_IA64_HP_SIM		\
+	 HP-zx1			CONFIG_IA64_HP_ZX1		\
 	 SGI-SN1		CONFIG_IA64_SGI_SN1		\
 	 SGI-SN2		CONFIG_IA64_SGI_SN2" generic
 
@@ -56,7 +57,7 @@ if [ "$CONFIG_MCKINLEY" = "y" ]; then
 	fi
 fi
 
-if [ "$CONFIG_IA64_DIG" = "y" ]; then
+if [ "$CONFIG_IA64_GENERIC" = "y" ] || [ "$CONFIG_IA64_DIG" = "y" ] || [ "$CONFIG_IA64_HP_ZX1" = "y" ]; then
 	bool '  Enable IA-64 Machine Check Abort' CONFIG_IA64_MCA
 	define_bool CONFIG_PM y
 fi

arch/ia64/dig/setup.c

@@ -35,8 +35,6 @@
 char drive_info[4*16];
 extern int pcat_compat;
 
-unsigned char aux_device_present = 0xaa;	/* XXX remove this when legacy I/O is gone */
-
 void __init
 dig_setup (char **cmdline_p)
 {

arch/ia64/hp/common/Makefile

@@ -12,3 +12,17 @@ export-objs := sba_iommu.o
 obj-y := sba_iommu.o
 
 include $(TOPDIR)/Rules.make
+#
+# ia64/platform/hp/common/Makefile
+#
+# Copyright (C) 2002 Hewlett Packard
+# Copyright (C) Alex Williamson (alex_williamson@hp.com)
+#
+
+O_TARGET := common.o
+
+export-objs := sba_iommu.o
+
+obj-y := sba_iommu.o
+
+include $(TOPDIR)/Rules.make

arch/ia64/hp/sim/Makefile

@@ -11,3 +11,16 @@ obj-y := hpsim_console.o hpsim_irq.o hpsim_setup.o
 obj-$(CONFIG_IA64_GENERIC) += hpsim_machvec.o
 
 include $(TOPDIR)/Rules.make
+#
+# ia64/platform/hp/sim/Makefile
+#
+# Copyright (C) 1999 Silicon Graphics, Inc.
+# Copyright (C) Srinivasa Thirumalachar (sprasad@engr.sgi.com)
+#
+
+O_TARGET := sim.o
+
+obj-y := hpsim_console.o hpsim_irq.o hpsim_setup.o
+obj-$(CONFIG_IA64_GENERIC) += hpsim_machvec.o
+
+include $(TOPDIR)/Rules.make

arch/ia64/hp/zx1/Makefile

@@ -11,3 +11,16 @@ obj-y := hpzx1_misc.o
 obj-$(CONFIG_IA64_GENERIC) += hpzx1_machvec.o
 
 include $(TOPDIR)/Rules.make
+#
+# ia64/platform/hp/zx1/Makefile
+#
+# Copyright (C) 2002 Hewlett Packard
+# Copyright (C) Alex Williamson (alex_williamson@hp.com)
+#
+
+O_TARGET := zx1.o
+
+obj-y := hpzx1_misc.o
+obj-$(CONFIG_IA64_GENERIC) += hpzx1_machvec.o
+
+include $(TOPDIR)/Rules.make

arch/ia64/hp/zx1/hpzx1_machvec.c

 #define MACHVEC_PLATFORM_NAME	hpzx1
 #include <asm/machvec_init.h>
+#define MACHVEC_PLATFORM_NAME	hpzx1
+#include <asm/machvec_init.h>

arch/ia64/kernel/Makefile

@@ -17,6 +17,7 @@ obj-y := acpi.o entry.o gate.o efi.o efi_stub.o ia64_ksyms.o irq.o irq_ia64.o ir
 	 machvec.o pal.o process.o perfmon.o ptrace.o sal.o semaphore.o setup.o	\
 	 signal.o sys_ia64.o traps.o time.o unaligned.o unwind.o
 obj-$(CONFIG_IA64_GENERIC) += iosapic.o
+obj-$(CONFIG_IA64_HP_ZX1) += iosapic.o
 obj-$(CONFIG_IA64_DIG) += iosapic.o
 obj-$(CONFIG_IA64_PALINFO) += palinfo.o
 obj-$(CONFIG_EFI_VARS) += efivars.o

arch/ia64/kernel/acpi.c

@@ -23,6 +23,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/irq.h>
+#include <linux/acpi.h>
 #ifdef CONFIG_SERIAL_ACPI
 #include <linux/acpi_serial.h>
 #endif
@@ -58,9 +59,34 @@ asm (".weak iosapic_version");
 const char *
 acpi_get_sysname (void)
 {
-	/* the following should go away once we have an ACPI parser: */
 #ifdef CONFIG_IA64_GENERIC
-	return "hpsim";
+	if (efi.acpi20) {
+		acpi20_rsdp_t *rsdp20;
+		acpi_xsdt_t *xsdt;
+		acpi_desc_table_hdr_t *hdrp;
+
+		rsdp20 = efi.acpi20;
+		if (strncmp(rsdp20->signature,
+		            ACPI_RSDP_SIG, ACPI_RSDP_SIG_LEN)) {
+			printk("ACPI 2.0 RSDP signature incorrect, default to DIG compatible\n");
+			return "dig";
+		}
+
+		xsdt = __va(rsdp20->xsdt);
+		hdrp = &xsdt->header;
+		if (strncmp(hdrp->signature,
+		            ACPI_XSDT_SIG, ACPI_XSDT_SIG_LEN)) {
+			printk("ACPI 2.0 XSDT signature incorrect, default to DIG compatible\n");
+			return "dig";
+		}
+
+		if (!strcmp(hdrp->oem_id, "HP")) {
+			printk("Enabling Hewlett Packard zx1 chipset support\n");
+			return "hpzx1";
+		}
+	}
+
+	return "dig";
 #else
 # if defined (CONFIG_IA64_HP_SIM)
 	return "hpsim";
@@ -68,13 +94,14 @@ acpi_get_sysname (void)
 	return "sn1";
 # elif defined (CONFIG_IA64_SGI_SN2)
 	return "sn2";
+# elif defined (CONFIG_IA64_HP_ZX1)
+	return "hpzx1";
 # elif defined (CONFIG_IA64_DIG)
 	return "dig";
 # else
 #	error Unknown platform.  Fix acpi.c.
 # endif
 #endif
-
 }
 
 /*
@@ -679,3 +706,74 @@ acpi_parse (acpi_rsdp_t *rsdp)
 # endif /* CONFIG_ACPI */
 	return 1;
 }
+
+#ifdef CONFIG_ACPI
+
+#include "../drivers/acpi/include/platform/acgcc.h"
+#include "../drivers/acpi/include/actypes.h"
+#include "../drivers/acpi/include/acexcep.h"
+#include "../drivers/acpi/include/acpixf.h"
+#include "../drivers/acpi/include/actbl.h"
+#include "../drivers/acpi/include/acconfig.h"
+#include "../drivers/acpi/include/acmacros.h"
+#include "../drivers/acpi/include/aclocal.h"
+#include "../drivers/acpi/include/acobject.h"
+#include "../drivers/acpi/include/acstruct.h"
+#include "../drivers/acpi/include/acnamesp.h"
+#include "../drivers/acpi/include/acutils.h"
+
+/**
+ * acpi_get_crs - Return the current resource settings for a device
+ * obj: A handle for this device
+ * buf: A buffer to be populated by this call.
+ *
+ * Pass a valid handle, typically obtained by walking the namespace and a
+ * pointer to an allocated buffer, and this function will fill in the buffer
+ * with a list of acpi_resource structures.
+ */
+acpi_status acpi_get_crs(acpi_handle obj, acpi_buffer *buf)
+{
+	acpi_status result;
+	buf->length = 0;
+	buf->pointer = NULL;
+
+	result = acpi_get_current_resources(obj, buf);
+	if (result != AE_BUFFER_OVERFLOW)
+		return result;
+	buf->pointer = kmalloc(buf->length, GFP_KERNEL);
+	if (!buf->pointer)
+		return -ENOMEM;
+
+	result = acpi_get_current_resources(obj, buf);
+
+	return result;
+}
+
+acpi_resource *acpi_get_crs_next(acpi_buffer *buf, int *offset)
+{
+	acpi_resource *res;
+
+	if (*offset >= buf->length)
+		return NULL;
+
+	res = buf->pointer + *offset;
+	*offset += res->length;
+	return res;
+}
+
+acpi_resource_data *acpi_get_crs_type(acpi_buffer *buf, int *offset, int type)
+{
+	for (;;) {
+		acpi_resource *res = acpi_get_crs_next(buf, offset);
+		if (!res)
+			return NULL;
+		if (res->id == type)
+			return &res->data;
+	}
+}
+
+void acpi_dispose_crs(acpi_buffer *buf)
+{
+	kfree(buf->pointer);
+}
+#endif /* CONFIG_ACPI */

arch/ia64/kernel/ia64_ksyms.c

@@ -148,3 +148,10 @@ EXPORT_SYMBOL(efi);
 #include <linux/proc_fs.h>
 extern struct proc_dir_entry *efi_dir;
 EXPORT_SYMBOL(efi_dir);
+
+#include <asm/machvec.h>
+#ifdef CONFIG_IA64_GENERIC
+EXPORT_SYMBOL(ia64_mv);
+#endif
+EXPORT_SYMBOL(machvec_noop);
+

arch/ia64/kernel/irq.c

@@ -68,6 +68,23 @@
 irq_desc_t _irq_desc[NR_IRQS] __cacheline_aligned =
 	{ [0 ... NR_IRQS-1] = { IRQ_DISABLED, &no_irq_type, NULL, 0, SPIN_LOCK_UNLOCKED}};
 
+#ifdef CONFIG_IA64_GENERIC
+struct irq_desc * __ia64_irq_desc (unsigned int irq)
+{
+	return _irq_desc + irq;
+}
+
+ia64_vector __ia64_irq_to_vector (unsigned int irq)
+{
+	return (ia64_vector) irq;
+}
+
+unsigned int __ia64_local_vector_to_irq (ia64_vector vec)
+{
+	return (unsigned int) vec;
+}
+#endif
+
 static void register_irq_proc (unsigned int irq);
 
 /*

arch/ia64/kernel/setup.c

@@ -64,6 +64,8 @@ struct screen_info screen_info;
 
 unsigned long ia64_iobase;	/* virtual address for I/O accesses */
 
+unsigned char aux_device_present = 0xaa;        /* XXX remove this when legacy I/O is gone */
+
 #define COMMAND_LINE_SIZE	512
 
 char saved_command_line[COMMAND_LINE_SIZE]; /* used in proc filesystem */

arch/ia64/mm/tlb.c

@@ -79,7 +79,7 @@ wrap_mmu_context (struct mm_struct *mm)
 	flush_tlb_all();
 }
 
-static inline void
+void
 ia64_global_tlb_purge (unsigned long start, unsigned long end, unsigned long nbits)
 {
 	static spinlock_t ptcg_lock = SPIN_LOCK_UNLOCKED;

drivers/pci/pci.ids

@@ -930,6 +930,9 @@
 	121a  NetServer SMIC Controller
 	121b  NetServer Legacy COM Port Decoder
 	121c  NetServer PCI COM Port Decoder
+	1229  zx1 System Bus Adapter
+	122a  zx1 I/O Controller
+	122e  zx1 Local Bus Adapter
 	2910  E2910A
 	2925  E2925A
 103e  Solliday Engineering

include/asm-ia64/hw_irq.h

@@ -88,6 +88,7 @@ hw_resend_irq (struct hw_interrupt_type *h, unsigned int vector)
 
 extern struct irq_desc _irq_desc[NR_IRQS];
 
+#ifndef CONFIG_IA64_GENERIC
 static inline struct irq_desc *
 __ia64_irq_desc (unsigned int irq)
 {
@@ -105,6 +106,7 @@ __ia64_local_vector_to_irq (ia64_vector vec)
 {
 	return (unsigned int) vec;
 }
+#endif
 
 /*
  * Next follows the irq descriptor interface.  On IA-64, each CPU supports 256 interrupt

include/asm-ia64/machvec.h

@@ -68,6 +68,8 @@ extern void machvec_noop (void);
 #  include <asm/machvec_hpsim.h>
 # elif defined (CONFIG_IA64_DIG)
 #  include <asm/machvec_dig.h>
+# elif defined (CONFIG_IA64_HP_ZX1)
+#  include <asm/machvec_hpzx1.h>
 # elif defined (CONFIG_IA64_SGI_SN1)
 #  include <asm/machvec_sn1.h>
 # elif defined (CONFIG_IA64_SGI_SN2)
@@ -123,6 +125,7 @@ struct ia64_machine_vector {
 	ia64_mv_cmci_handler_t *cmci_handler;
 	ia64_mv_log_print_t *log_print;
 	ia64_mv_send_ipi_t *send_ipi;
+	ia64_mv_global_tlb_purge_t *global_tlb_purge;
 	ia64_mv_pci_dma_init *dma_init;
 	ia64_mv_pci_alloc_consistent *alloc_consistent;
 	ia64_mv_pci_free_consistent *free_consistent;
@@ -149,6 +152,7 @@ struct ia64_machine_vector {
 {						\
 	#name,					\
 	platform_setup,				\
+	platform_cpu_init,			\
 	platform_irq_init,			\
 	platform_pci_fixup,			\
 	platform_map_nr,			\

include/asm-ia64/machvec_hpzx1.h

@@ -35,3 +35,40 @@ extern ia64_mv_pci_dma_address sba_dma_address;
 #define platform_pci_dma_address	sba_dma_address
 
 #endif /* _ASM_IA64_MACHVEC_HPZX1_h */
+#ifndef _ASM_IA64_MACHVEC_HPZX1_h
+#define _ASM_IA64_MACHVEC_HPZX1_h
+
+extern ia64_mv_setup_t dig_setup;
+extern ia64_mv_pci_fixup_t hpzx1_pci_fixup;
+extern ia64_mv_map_nr_t map_nr_dense;
+extern ia64_mv_pci_alloc_consistent sba_alloc_consistent;
+extern ia64_mv_pci_free_consistent sba_free_consistent;
+extern ia64_mv_pci_map_single sba_map_single;
+extern ia64_mv_pci_unmap_single sba_unmap_single;
+extern ia64_mv_pci_map_sg sba_map_sg;
+extern ia64_mv_pci_unmap_sg sba_unmap_sg;
+extern ia64_mv_pci_dma_address sba_dma_address;
+
+/*
+ * 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 platform_name			"hpzx1"
+#define platform_setup			dig_setup
+#define platform_pci_fixup		hpzx1_pci_fixup
+#define platform_map_nr			map_nr_dense
+#define platform_pci_dma_init		((ia64_mv_pci_dma_init *) machvec_noop)
+#define platform_pci_alloc_consistent	sba_alloc_consistent
+#define platform_pci_free_consistent	sba_free_consistent
+#define platform_pci_map_single		sba_map_single
+#define platform_pci_unmap_single	sba_unmap_single
+#define platform_pci_map_sg		sba_map_sg
+#define platform_pci_unmap_sg		sba_unmap_sg
+#define platform_pci_dma_sync_single	((ia64_mv_pci_dma_sync_single *) machvec_noop)
+#define platform_pci_dma_sync_sg	((ia64_mv_pci_dma_sync_sg *) machvec_noop)
+#define platform_pci_dma_address	sba_dma_address
+
+#endif /* _ASM_IA64_MACHVEC_HPZX1_h */

include/asm-ia64/machvec_init.h

@@ -5,6 +5,11 @@
 #include <asm/machvec.h>
 
 extern ia64_mv_send_ipi_t ia64_send_ipi;
+extern ia64_mv_global_tlb_purge_t ia64_global_tlb_purge;
+extern ia64_mv_irq_desc __ia64_irq_desc;
+extern ia64_mv_irq_to_vector __ia64_irq_to_vector;
+extern ia64_mv_local_vector_to_irq __ia64_local_vector_to_irq;
+
 extern ia64_mv_inb_t __ia64_inb;
 extern ia64_mv_inw_t __ia64_inw;
 extern ia64_mv_inl_t __ia64_inl;

include/linux/pci_ids.h

@@ -507,6 +507,9 @@
 #define PCI_DEVICE_ID_HP_DIVA1		0x1049
 #define PCI_DEVICE_ID_HP_DIVA2		0x104A
 #define PCI_DEVICE_ID_HP_SP2_0		0x104B
+#define PCI_DEVICE_ID_HP_ZX1_SBA	0x1229
+#define PCI_DEVICE_ID_HP_ZX1_IOC	0x122a
+#define PCI_DEVICE_ID_HP_ZX1_LBA	0x122e
 
 #define PCI_VENDOR_ID_PCTECH		0x1042
 #define PCI_DEVICE_ID_PCTECH_RZ1000	0x1000