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authorChristoph Hellwig <hch@lst.de>2019-08-13 09:25:12 +0200
committerTony Luck <tony.luck@intel.com>2019-08-16 14:32:26 -0700
commitdf41017eafd267c08acbfff99d34e4f96bbfbc92 (patch)
tree6c6147f0ecc52dbf1ea066ba739a83ad0526712a /arch/ia64/include
parenta8384e6ce5231d4f697f2dca1de4ff6bed7f3890 (diff)
downloadlinux-df41017eafd267c08acbfff99d34e4f96bbfbc92.tar.bz2
ia64: remove support for machvecs
The only thing remaining of the machvecs is a few checks if we are running on an SGI UV system. Replace those with the existing is_uv_system() check that has been rewritten to simply check the OEM ID directly. That leaves us with a generic kernel that is as fast as the previous DIG/ZX1/UV kernels, but can support all hardware. Support for UV and the HP SBA IOMMU is now optional based on new config options. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lkml.kernel.org/r/20190813072514.23299-27-hch@lst.de Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/include')
-rw-r--r--arch/ia64/include/asm/acpi.h16
-rw-r--r--arch/ia64/include/asm/hw_irq.h5
-rw-r--r--arch/ia64/include/asm/io.h1
-rw-r--r--arch/ia64/include/asm/iommu.h1
-rw-r--r--arch/ia64/include/asm/machvec.h69
-rw-r--r--arch/ia64/include/asm/machvec_dig.h17
-rw-r--r--arch/ia64/include/asm/machvec_hpzx1.h17
-rw-r--r--arch/ia64/include/asm/machvec_init.h11
-rw-r--r--arch/ia64/include/asm/machvec_uv.h26
-rw-r--r--arch/ia64/include/asm/mmzone.h13
-rw-r--r--arch/ia64/include/asm/processor.h2
-rw-r--r--arch/ia64/include/asm/tlb.h1
-rw-r--r--arch/ia64/include/asm/uv/uv.h23
13 files changed, 26 insertions, 176 deletions
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index be6bf3e499a6..f886d4dc9d55 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -32,22 +32,6 @@ static inline bool acpi_has_cpu_in_madt(void)
#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
static inline void disable_acpi(void) { }
-#ifdef CONFIG_IA64_GENERIC
-const char *acpi_get_sysname (void);
-#else
-static inline const char *acpi_get_sysname (void)
-{
-# if defined (CONFIG_IA64_HP_ZX1)
- return "hpzx1";
-# elif defined (CONFIG_IA64_SGI_UV)
- return "uv";
-# elif defined (CONFIG_IA64_DIG)
- return "dig";
-# else
-# error Unknown platform. Fix acpi.c.
-# endif
-}
-#endif
int acpi_request_vector (u32 int_type);
int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
diff --git a/arch/ia64/include/asm/hw_irq.h b/arch/ia64/include/asm/hw_irq.h
index 12808111a767..e6385c7bdeb0 100644
--- a/arch/ia64/include/asm/hw_irq.h
+++ b/arch/ia64/include/asm/hw_irq.h
@@ -12,7 +12,6 @@
#include <linux/types.h>
#include <linux/profile.h>
-#include <asm/machvec.h>
#include <asm/ptrace.h>
#include <asm/smp.h>
@@ -56,7 +55,7 @@ typedef u8 ia64_vector;
extern int ia64_first_device_vector;
extern int ia64_last_device_vector;
-#if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_DIG))
+#ifdef CONFIG_SMP
/* Reserve the lower priority vector than device vectors for "move IRQ" IPI */
#define IA64_IRQ_MOVE_VECTOR 0x30 /* "move IRQ" IPI */
#define IA64_DEF_FIRST_DEVICE_VECTOR 0x31
@@ -127,7 +126,7 @@ extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect)
extern void ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action);
extern void destroy_and_reserve_irq (unsigned int irq);
-#if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG))
+#ifdef CONFIG_SMP
extern int irq_prepare_move(int irq, int cpu);
extern void irq_complete_move(unsigned int irq);
#else
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index edd5c262d360..54e70c21352a 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -71,7 +71,6 @@ extern unsigned int num_io_spaces;
#define HAVE_ARCH_PIO_SIZE
#include <asm/intrinsics.h>
-#include <asm/machvec.h>
#include <asm/page.h>
#include <asm-generic/iomap.h>
diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index 7429a72f3f92..679854fbdfc5 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -15,6 +15,5 @@ extern int iommu_detected;
#define no_iommu (1)
#define iommu_detected (0)
#endif
-extern void machvec_init(const char *name);
#endif
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
deleted file mode 100644
index b22d0499b58c..000000000000
--- a/arch/ia64/include/asm/machvec.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Machine vector for IA-64.
- *
- * Copyright (C) 1999 Silicon Graphics, Inc.
- * Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com>
- * Copyright (C) Vijay Chander <vijay@engr.sgi.com>
- * Copyright (C) 1999-2001, 2003-2004 Hewlett-Packard Co.
- * David Mosberger-Tang <davidm@hpl.hp.com>
- */
-#ifndef _ASM_IA64_MACHVEC_H
-#define _ASM_IA64_MACHVEC_H
-
-#include <linux/types.h>
-
-struct device;
-
-typedef void ia64_mv_setup_t (char **);
-
-extern void machvec_setup (char **);
-
-# if 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_UV)
-# include <asm/machvec_uv.h>
-# elif defined (CONFIG_IA64_GENERIC)
-
-# ifdef MACHVEC_PLATFORM_HEADER
-# include MACHVEC_PLATFORM_HEADER
-# else
-# define ia64_platform_name ia64_mv.name
-# define platform_setup ia64_mv.setup
-# endif
-
-/* __attribute__((__aligned__(16))) is required to make size of the
- * structure multiple of 16 bytes.
- * This will fillup the holes created because of section 3.3.1 in
- * Software Conventions guide.
- */
-struct ia64_machine_vector {
- const char *name;
- ia64_mv_setup_t *setup;
-} __attribute__((__aligned__(16))); /* align attrib? see above comment */
-
-#define MACHVEC_INIT(name) \
-{ \
- #name, \
- platform_setup, \
-}
-
-extern struct ia64_machine_vector ia64_mv;
-extern void machvec_init (const char *name);
-extern void machvec_init_from_cmdline(const char *cmdline);
-
-# else
-# error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
-# endif /* CONFIG_IA64_GENERIC */
-
-/*
- * Define default versions so we can extend machvec for new platforms without having
- * to update the machvec files for all existing platforms.
- */
-#ifndef platform_setup
-# define platform_setup machvec_setup
-#endif
-
-#endif /* _ASM_IA64_MACHVEC_H */
diff --git a/arch/ia64/include/asm/machvec_dig.h b/arch/ia64/include/asm/machvec_dig.h
deleted file mode 100644
index bc230f69faeb..000000000000
--- a/arch/ia64/include/asm/machvec_dig.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_IA64_MACHVEC_DIG_h
-#define _ASM_IA64_MACHVEC_DIG_h
-
-extern ia64_mv_setup_t dig_setup;
-
-/*
- * 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 "dig"
-#define platform_setup dig_setup
-
-#endif /* _ASM_IA64_MACHVEC_DIG_h */
diff --git a/arch/ia64/include/asm/machvec_hpzx1.h b/arch/ia64/include/asm/machvec_hpzx1.h
deleted file mode 100644
index 7d37998ffdbf..000000000000
--- a/arch/ia64/include/asm/machvec_hpzx1.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_IA64_MACHVEC_HPZX1_h
-#define _ASM_IA64_MACHVEC_HPZX1_h
-
-extern ia64_mv_setup_t dig_setup;
-
-/*
- * 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 "hpzx1"
-#define platform_setup dig_setup
-
-#endif /* _ASM_IA64_MACHVEC_HPZX1_h */
diff --git a/arch/ia64/include/asm/machvec_init.h b/arch/ia64/include/asm/machvec_init.h
deleted file mode 100644
index 7a82e3ea0aff..000000000000
--- a/arch/ia64/include/asm/machvec_init.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/iommu.h>
-#include <asm/machvec.h>
-
-#define MACHVEC_HELPER(name) \
- struct ia64_machine_vector machvec_##name __attribute__ ((unused, __section__ (".machvec"))) \
- = MACHVEC_INIT(name);
-
-#define MACHVEC_DEFINE(name) MACHVEC_HELPER(name)
-
-MACHVEC_DEFINE(MACHVEC_PLATFORM_NAME)
diff --git a/arch/ia64/include/asm/machvec_uv.h b/arch/ia64/include/asm/machvec_uv.h
deleted file mode 100644
index 2c50853f35ac..000000000000
--- a/arch/ia64/include/asm/machvec_uv.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * 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.
- *
- * SGI UV Core Functions
- *
- * Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
- */
-
-#ifndef _ASM_IA64_MACHVEC_UV_H
-#define _ASM_IA64_MACHVEC_UV_H
-
-extern ia64_mv_setup_t uv_setup;
-
-/*
- * 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 "uv"
-#define platform_setup uv_setup
-
-#endif /* _ASM_IA64_MACHVEC_UV_H */
diff --git a/arch/ia64/include/asm/mmzone.h b/arch/ia64/include/asm/mmzone.h
index 0ceca5f9449c..767201f66c93 100644
--- a/arch/ia64/include/asm/mmzone.h
+++ b/arch/ia64/include/asm/mmzone.h
@@ -27,16 +27,9 @@ static inline int pfn_to_nid(unsigned long pfn)
return nid;
}
-#ifdef CONFIG_IA64_DIG /* DIG systems are small */
-# define MAX_PHYSNODE_ID 8
-# define NR_NODE_MEMBLKS (MAX_NUMNODES * 8)
-#else
-# define MAX_PHYSNODE_ID 2048
-# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4)
-#endif
-
-#else /* CONFIG_NUMA */
-# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4)
+#define MAX_PHYSNODE_ID 2048
#endif /* CONFIG_NUMA */
+#define NR_NODE_MEMBLKS (MAX_NUMNODES * 4)
+
#endif /* _ASM_IA64_MMZONE_H */
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index c91ef98ed6bf..95a2ec37400f 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -679,8 +679,6 @@ enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_FORCE_MWAIT,
void default_idle(void);
-#define ia64_platform_is(x) (strcmp(x, ia64_platform_name) == 0)
-
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_IA64_PROCESSOR_H */
diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h
index 86ec034ba499..f1f257d632b3 100644
--- a/arch/ia64/include/asm/tlb.h
+++ b/arch/ia64/include/asm/tlb.h
@@ -45,7 +45,6 @@
#include <asm/pgalloc.h>
#include <asm/processor.h>
#include <asm/tlbflush.h>
-#include <asm/machvec.h>
#include <asm-generic/tlb.h>
diff --git a/arch/ia64/include/asm/uv/uv.h b/arch/ia64/include/asm/uv/uv.h
index 502cf1c56369..48d4526bf4cd 100644
--- a/arch/ia64/include/asm/uv/uv.h
+++ b/arch/ia64/include/asm/uv/uv.h
@@ -2,10 +2,29 @@
#ifndef _ASM_IA64_UV_UV_H
#define _ASM_IA64_UV_UV_H
+#ifdef CONFIG_IA64_SGI_UV
+extern bool ia64_is_uv;
+
+static inline int is_uv_system(void)
+{
+ return ia64_is_uv;
+}
+
+void __init uv_probe_system_type(void);
+void __init uv_setup(char **cmdline_p);
+#else /* CONFIG_IA64_SGI_UV */
static inline int is_uv_system(void)
{
- /* temporary support for running on hardware simulator */
- return ia64_platform_is("uv");
+ return false;
+}
+
+static inline void __init uv_probe_system_type(void)
+{
+}
+
+static inline void __init uv_setup(char **cmdline_p)
+{
}
+#endif /* CONFIG_IA64_SGI_UV */
#endif /* _ASM_IA64_UV_UV_H */