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Message-Id: <20190807133049.20893-22-hch@lst.de>
Date: Wed, 7 Aug 2019 16:30:41 +0300
From: Christoph Hellwig <hch@....de>
To: Tony Luck <tony.luck@...el.com>, Fenghua Yu <fenghua.yu@...el.com>
Cc: Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 21/29] ia64: remove the SGI UV simulator support
The simulator support was marked as temporary since the initial commit,
so drop it more than 10 years later.
Signed-off-by: Christoph Hellwig <hch@....de>
---
arch/ia64/include/asm/sn/simulator.h | 25 ----------------------
arch/ia64/include/asm/sn/sn_sal.h | 10 ---------
arch/ia64/include/asm/uv/uv.h | 4 +---
arch/ia64/uv/kernel/setup.c | 31 +++++-----------------------
4 files changed, 6 insertions(+), 64 deletions(-)
delete mode 100644 arch/ia64/include/asm/sn/simulator.h
diff --git a/arch/ia64/include/asm/sn/simulator.h b/arch/ia64/include/asm/sn/simulator.h
deleted file mode 100644
index 3e4557df3b7c..000000000000
--- a/arch/ia64/include/asm/sn/simulator.h
+++ /dev/null
@@ -1,25 +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.
- * Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
- */
-
-#ifndef _ASM_IA64_SN_SIMULATOR_H
-#define _ASM_IA64_SN_SIMULATOR_H
-
-#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_UV)
-#define SNMAGIC 0xaeeeeeee8badbeefL
-#define IS_MEDUSA() ({long sn; asm("mov %0=cpuid[%1]" : "=r"(sn) : "r"(2)); sn == SNMAGIC;})
-
-#define SIMULATOR_SLEEP() asm("nop.i 0x8beef")
-#define IS_RUNNING_ON_SIMULATOR() (sn_prom_type)
-#define IS_RUNNING_ON_FAKE_PROM() (sn_prom_type == 2)
-extern int sn_prom_type; /* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */
-#else
-#define IS_MEDUSA() 0
-#define SIMULATOR_SLEEP()
-#define IS_RUNNING_ON_SIMULATOR() 0
-#endif
-
-#endif /* _ASM_IA64_SN_SIMULATOR_H */
diff --git a/arch/ia64/include/asm/sn/sn_sal.h b/arch/ia64/include/asm/sn/sn_sal.h
index 48b88d0807db..d437aa43343b 100644
--- a/arch/ia64/include/asm/sn/sn_sal.h
+++ b/arch/ia64/include/asm/sn/sn_sal.h
@@ -30,8 +30,6 @@
#define SALRET_INVALID_ARG (-2)
#define SALRET_ERROR (-3)
-#define SN_SAL_FAKE_PROM 0x02009999
-
/*
* Returns the physical address of the partition's reserved page through
* an iterative number of calls.
@@ -81,14 +79,6 @@ sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
#define SN_MEMPROT_ACCESS_CLASS_6 0x084080
#define SN_MEMPROT_ACCESS_CLASS_7 0x021080
-static inline int
-ia64_sn_is_fake_prom(void)
-{
- struct ia64_sal_retval rv;
- SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
- return (rv.status == 0);
-}
-
union sn_watchlist_u {
u64 val;
struct {
diff --git a/arch/ia64/include/asm/uv/uv.h b/arch/ia64/include/asm/uv/uv.h
index 71df93ee3bc0..502cf1c56369 100644
--- a/arch/ia64/include/asm/uv/uv.h
+++ b/arch/ia64/include/asm/uv/uv.h
@@ -2,12 +2,10 @@
#ifndef _ASM_IA64_UV_UV_H
#define _ASM_IA64_UV_UV_H
-#include <asm/sn/simulator.h>
-
static inline int is_uv_system(void)
{
/* temporary support for running on hardware simulator */
- return IS_MEDUSA() || ia64_platform_is("uv");
+ return ia64_platform_is("uv");
}
#endif /* _ASM_IA64_UV_UV_H */
diff --git a/arch/ia64/uv/kernel/setup.c b/arch/ia64/uv/kernel/setup.c
index 11478d2d863d..6ac4bd314d92 100644
--- a/arch/ia64/uv/kernel/setup.c
+++ b/arch/ia64/uv/kernel/setup.c
@@ -10,14 +10,12 @@
#include <linux/module.h>
#include <linux/percpu.h>
-#include <asm/sn/simulator.h>
#include <asm/uv/uv_mmrs.h>
#include <asm/uv/uv_hub.h>
DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info);
-int sn_prom_type;
long sn_coherency_id;
EXPORT_SYMBOL_GPL(sn_coherency_id);
@@ -60,30 +58,11 @@ void __init uv_setup(char **cmdline_p)
int nid, cpu, m_val, n_val;
unsigned long mmr_base, lowmem_redir_base, lowmem_redir_size;
- if (IS_MEDUSA()) {
- lowmem_redir_base = 0;
- lowmem_redir_size = 0;
- node_id.v = 0;
- m_n_config.s.m_skt = 37;
- m_n_config.s.n_skt = 0;
- mmr_base = 0;
-#if 0
- /* Need BIOS calls - TDB */
- if (!ia64_sn_is_fake_prom())
- sn_prom_type = 1;
- else
-#endif
- sn_prom_type = 2;
- printk(KERN_INFO "Running on medusa with %s PROM\n",
- (sn_prom_type == 1) ? "real" : "fake");
- } else {
- get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
- node_id.v = uv_read_local_mmr(UVH_NODE_ID);
- m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
- mmr_base =
- uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) &
- ~UV_MMR_ENABLE;
- }
+ get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
+ node_id.v = uv_read_local_mmr(UVH_NODE_ID);
+ m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
+ mmr_base = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) &
+ ~UV_MMR_ENABLE;
m_val = m_n_config.s.m_skt;
n_val = m_n_config.s.n_skt;
--
2.20.1
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