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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/mips/include/asm/mach-malta
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/mips/include/asm/mach-malta')
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h70
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/irq.h9
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/kernel-entry-init.h145
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/mach-gt64120.h19
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/malta-pm.h37
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/mc146818rtc.h48
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/spaces.h46
-rw-r--r--kernel/arch/mips/include/asm/mach-malta/war.h24
8 files changed, 398 insertions, 0 deletions
diff --git a/kernel/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h b/kernel/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
new file mode 100644
index 000000000..de3b66a37
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
@@ -0,0 +1,70 @@
+/*
+ * 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) 2003, 2004 Chris Dearman
+ * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H
+
+
+/*
+ * CPU feature overrides for MIPS boards
+ */
+#ifdef CONFIG_CPU_MIPS32
+#define cpu_has_tlb 1
+#define cpu_has_4kex 1
+#define cpu_has_4k_cache 1
+/* #define cpu_has_fpu ? */
+/* #define cpu_has_32fpr ? */
+#define cpu_has_counter 1
+/* #define cpu_has_watch ? */
+#define cpu_has_divec 1
+#define cpu_has_vce 0
+/* #define cpu_has_cache_cdex_p ? */
+/* #define cpu_has_cache_cdex_s ? */
+/* #define cpu_has_prefetch ? */
+#define cpu_has_mcheck 1
+/* #define cpu_has_ejtag ? */
+#define cpu_has_llsc 1
+/* #define cpu_has_vtag_icache ? */
+/* #define cpu_has_dc_aliases ? */
+/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz 1
+#define cpu_has_nofpuex 0
+/* #define cpu_has_64bits ? */
+/* #define cpu_has_64bit_zero_reg ? */
+/* #define cpu_has_inclusive_pcaches ? */
+#define cpu_icache_snoops_remote_store 1
+#endif
+
+#ifdef CONFIG_CPU_MIPS64
+#define cpu_has_tlb 1
+#define cpu_has_4kex 1
+#define cpu_has_4k_cache 1
+/* #define cpu_has_fpu ? */
+/* #define cpu_has_32fpr ? */
+#define cpu_has_counter 1
+/* #define cpu_has_watch ? */
+#define cpu_has_divec 1
+#define cpu_has_vce 0
+/* #define cpu_has_cache_cdex_p ? */
+/* #define cpu_has_cache_cdex_s ? */
+/* #define cpu_has_prefetch ? */
+#define cpu_has_mcheck 1
+/* #define cpu_has_ejtag ? */
+#define cpu_has_llsc 1
+/* #define cpu_has_vtag_icache ? */
+/* #define cpu_has_dc_aliases ? */
+/* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz 1
+#define cpu_has_nofpuex 0
+/* #define cpu_has_64bits ? */
+/* #define cpu_has_64bit_zero_reg ? */
+/* #define cpu_has_inclusive_pcaches ? */
+#define cpu_icache_snoops_remote_store 1
+#endif
+
+#endif /* __ASM_MACH_MIPS_CPU_FEATURE_OVERRIDES_H */
diff --git a/kernel/arch/mips/include/asm/mach-malta/irq.h b/kernel/arch/mips/include/asm/mach-malta/irq.h
new file mode 100644
index 000000000..47cfe64ef
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/irq.h
@@ -0,0 +1,9 @@
+#ifndef __ASM_MACH_MIPS_IRQ_H
+#define __ASM_MACH_MIPS_IRQ_H
+
+
+#define NR_IRQS 256
+
+#include_next <irq.h>
+
+#endif /* __ASM_MACH_MIPS_IRQ_H */
diff --git a/kernel/arch/mips/include/asm/mach-malta/kernel-entry-init.h b/kernel/arch/mips/include/asm/mach-malta/kernel-entry-init.h
new file mode 100644
index 000000000..0cf8622db
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/kernel-entry-init.h
@@ -0,0 +1,145 @@
+/*
+ * 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.
+ *
+ * Chris Dearman (chris@mips.com)
+ * Copyright (C) 2007 Mips Technologies, Inc.
+ * Copyright (C) 2014 Imagination Technologies Ltd.
+ */
+#ifndef __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H
+#define __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H
+
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+
+ /*
+ * Prepare segments for EVA boot:
+ *
+ * This is in case the processor boots in legacy configuration
+ * (SI_EVAReset is de-asserted and CONFIG5.K == 0)
+ *
+ * ========================= Mappings =============================
+ * Virtual memory Physical memory Mapping
+ * 0x00000000 - 0x7fffffff 0x80000000 - 0xfffffffff MUSUK (kuseg)
+ * Flat 2GB physical memory
+ *
+ * 0x80000000 - 0x9fffffff 0x00000000 - 0x1ffffffff MUSUK (kseg0)
+ * 0xa0000000 - 0xbf000000 0x00000000 - 0x1ffffffff MUSUK (kseg1)
+ * 0xc0000000 - 0xdfffffff - MK (kseg2)
+ * 0xe0000000 - 0xffffffff - MK (kseg3)
+ *
+ *
+ * Lowmem is expanded to 2GB
+ *
+ * The following code uses the t0, t1, t2 and ra registers without
+ * previously preserving them.
+ *
+ */
+ .macro platform_eva_init
+
+ .set push
+ .set reorder
+ /*
+ * Get Config.K0 value and use it to program
+ * the segmentation registers
+ */
+ mfc0 t1, CP0_CONFIG
+ andi t1, 0x7 /* CCA */
+ move t2, t1
+ ins t2, t1, 16, 3
+ /* SegCtl0 */
+ li t0, ((MIPS_SEGCFG_MK << MIPS_SEGCFG_AM_SHIFT) | \
+ (0 << MIPS_SEGCFG_PA_SHIFT) | \
+ (1 << MIPS_SEGCFG_EU_SHIFT)) | \
+ (((MIPS_SEGCFG_MK << MIPS_SEGCFG_AM_SHIFT) | \
+ (0 << MIPS_SEGCFG_PA_SHIFT) | \
+ (1 << MIPS_SEGCFG_EU_SHIFT)) << 16)
+ or t0, t2
+ mtc0 t0, $5, 2
+
+ /* SegCtl1 */
+ li t0, ((MIPS_SEGCFG_MUSUK << MIPS_SEGCFG_AM_SHIFT) | \
+ (0 << MIPS_SEGCFG_PA_SHIFT) | \
+ (2 << MIPS_SEGCFG_C_SHIFT) | \
+ (1 << MIPS_SEGCFG_EU_SHIFT)) | \
+ (((MIPS_SEGCFG_MUSUK << MIPS_SEGCFG_AM_SHIFT) | \
+ (0 << MIPS_SEGCFG_PA_SHIFT) | \
+ (1 << MIPS_SEGCFG_EU_SHIFT)) << 16)
+ ins t0, t1, 16, 3
+ mtc0 t0, $5, 3
+
+ /* SegCtl2 */
+ li t0, ((MIPS_SEGCFG_MUSUK << MIPS_SEGCFG_AM_SHIFT) | \
+ (6 << MIPS_SEGCFG_PA_SHIFT) | \
+ (1 << MIPS_SEGCFG_EU_SHIFT)) | \
+ (((MIPS_SEGCFG_MUSUK << MIPS_SEGCFG_AM_SHIFT) | \
+ (4 << MIPS_SEGCFG_PA_SHIFT) | \
+ (1 << MIPS_SEGCFG_EU_SHIFT)) << 16)
+ or t0, t2
+ mtc0 t0, $5, 4
+
+ jal mips_ihb
+ mfc0 t0, $16, 5
+ li t2, 0x40000000 /* K bit */
+ or t0, t0, t2
+ mtc0 t0, $16, 5
+ sync
+ jal mips_ihb
+
+ .set pop
+ .endm
+
+ .macro kernel_entry_setup
+
+#ifdef CONFIG_EVA
+ sync
+ ehb
+
+ mfc0 t1, CP0_CONFIG
+ bgez t1, 9f
+ mfc0 t0, CP0_CONFIG, 1
+ bgez t0, 9f
+ mfc0 t0, CP0_CONFIG, 2
+ bgez t0, 9f
+ mfc0 t0, CP0_CONFIG, 3
+ sll t0, t0, 6 /* SC bit */
+ bgez t0, 9f
+
+ platform_eva_init
+ b 0f
+9:
+ /* Assume we came from YAMON... */
+ PTR_LA v0, 0x9fc00534 /* YAMON print */
+ lw v0, (v0)
+ move a0, zero
+ PTR_LA a1, nonsc_processor
+ jal v0
+
+ PTR_LA v0, 0x9fc00520 /* YAMON exit */
+ lw v0, (v0)
+ li a0, 1
+ jal v0
+
+1: b 1b
+ nop
+ __INITDATA
+nonsc_processor:
+ .asciz "EVA kernel requires a MIPS core with Segment Control implemented\n"
+ __FINIT
+#endif /* CONFIG_EVA */
+0:
+ .endm
+
+/*
+ * Do SMP slave processor setup necessary before we can safely execute C code.
+ */
+ .macro smp_slave_setup
+#ifdef CONFIG_EVA
+ sync
+ ehb
+ platform_eva_init
+#endif
+ .endm
+
+#endif /* __ASM_MACH_MIPS_KERNEL_ENTRY_INIT_H */
diff --git a/kernel/arch/mips/include/asm/mach-malta/mach-gt64120.h b/kernel/arch/mips/include/asm/mach-malta/mach-gt64120.h
new file mode 100644
index 000000000..62a4b2889
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/mach-gt64120.h
@@ -0,0 +1,19 @@
+/*
+ * This is a direct copy of the ev96100.h file, with a global
+ * search and replace. The numbers are the same.
+ *
+ * The reason I'm duplicating this is so that the 64120/96100
+ * defines won't be confusing in the source code.
+ */
+#ifndef _ASM_MACH_MIPS_MACH_GT64120_DEP_H
+#define _ASM_MACH_MIPS_MACH_GT64120_DEP_H
+
+#define MIPS_GT_BASE 0x1be00000
+
+extern unsigned long _pcictrl_gt64120;
+/*
+ * GT64120 config space base address
+ */
+#define GT64120_BASE _pcictrl_gt64120
+
+#endif /* _ASM_MACH_MIPS_MACH_GT64120_DEP_H */
diff --git a/kernel/arch/mips/include/asm/mach-malta/malta-pm.h b/kernel/arch/mips/include/asm/mach-malta/malta-pm.h
new file mode 100644
index 000000000..c2c2e2010
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/malta-pm.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2014 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __ASM_MIPS_MACH_MALTA_PM_H__
+#define __ASM_MIPS_MACH_MALTA_PM_H__
+
+#include <asm/mips-boards/piix4.h>
+
+#ifdef CONFIG_MIPS_MALTA_PM
+
+/**
+ * mips_pm_suspend - enter a suspend state
+ * @state: the state to enter, one of PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_*
+ *
+ * Enters a suspend state via the Malta's PIIX4. If the state to be entered
+ * is one which loses context (eg. SOFF) then this function will never
+ * return.
+ */
+extern int mips_pm_suspend(unsigned state);
+
+#else /* !CONFIG_MIPS_MALTA_PM */
+
+static inline int mips_pm_suspend(unsigned state)
+{
+ return -EINVAL;
+}
+
+#endif /* !CONFIG_MIPS_MALTA_PM */
+
+#endif /* __ASM_MIPS_MACH_MALTA_PM_H__ */
diff --git a/kernel/arch/mips/include/asm/mach-malta/mc146818rtc.h b/kernel/arch/mips/include/asm/mach-malta/mc146818rtc.h
new file mode 100644
index 000000000..ea612f37f
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/mc146818rtc.h
@@ -0,0 +1,48 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) 2003 by Ralf Baechle
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * RTC routines for Malta style attached PIIX4 device, which contains a
+ * Motorola MC146818A-compatible Real Time Clock.
+ */
+#ifndef __ASM_MACH_MALTA_MC146818RTC_H
+#define __ASM_MACH_MALTA_MC146818RTC_H
+
+#include <asm/io.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/mips-boards/malta.h>
+
+#define RTC_PORT(x) (0x70 + (x))
+#define RTC_IRQ 8
+
+static inline unsigned char CMOS_READ(unsigned long addr)
+{
+ outb(addr, MALTA_RTC_ADR_REG);
+ return inb(MALTA_RTC_DAT_REG);
+}
+
+static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
+{
+ outb(addr, MALTA_RTC_ADR_REG);
+ outb(data, MALTA_RTC_DAT_REG);
+}
+
+#define RTC_ALWAYS_BCD 0
+
+#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
+
+#endif /* __ASM_MACH_MALTA_MC146818RTC_H */
diff --git a/kernel/arch/mips/include/asm/mach-malta/spaces.h b/kernel/arch/mips/include/asm/mach-malta/spaces.h
new file mode 100644
index 000000000..d7e54971e
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/spaces.h
@@ -0,0 +1,46 @@
+/*
+ * 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) 2014 Imagination Technologies Ltd.
+ */
+
+#ifndef _ASM_MALTA_SPACES_H
+#define _ASM_MALTA_SPACES_H
+
+#ifdef CONFIG_EVA
+
+/*
+ * Traditional Malta Board Memory Map for EVA
+ *
+ * 0x00000000 - 0x0fffffff: 1st RAM region, 256MB
+ * 0x10000000 - 0x1bffffff: GIC and CPC Control Registers
+ * 0x1c000000 - 0x1fffffff: I/O And Flash
+ * 0x20000000 - 0x7fffffff: 2nd RAM region, 1.5GB
+ * 0x80000000 - 0xffffffff: Physical memory aliases to 0x0 (2GB)
+ *
+ * The kernel is still located in 0x80000000(kseg0). However,
+ * the physical mask has been shifted to 0x80000000 which exploits the alias
+ * on the Malta board. As a result of which, we override the __pa_symbol
+ * to peform direct mapping from virtual to physical addresses. In other
+ * words, the 0x80000000 virtual address maps to 0x80000000 physical address
+ * which in turn aliases to 0x0. We do this in order to be able to use a flat
+ * 2GB of memory (0x80000000 - 0xffffffff) so we can avoid the I/O hole in
+ * 0x10000000 - 0x1fffffff.
+ * The last 64KB of physical memory are reserved for correct HIGHMEM
+ * macros arithmetics.
+ *
+ */
+
+#define PAGE_OFFSET _AC(0x0, UL)
+#define PHYS_OFFSET _AC(0x80000000, UL)
+#define HIGHMEM_START _AC(0xffff0000, UL)
+
+#define __pa_symbol(x) (RELOC_HIDE((unsigned long)(x), 0))
+
+#endif /* CONFIG_EVA */
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* _ASM_MALTA_SPACES_H */
diff --git a/kernel/arch/mips/include/asm/mach-malta/war.h b/kernel/arch/mips/include/asm/mach-malta/war.h
new file mode 100644
index 000000000..d068fc411
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-malta/war.h
@@ -0,0 +1,24 @@
+/*
+ * 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) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
+ */
+#ifndef __ASM_MIPS_MACH_MIPS_WAR_H
+#define __ASM_MIPS_MACH_MIPS_WAR_H
+
+#define R4600_V1_INDEX_ICACHEOP_WAR 0
+#define R4600_V1_HIT_CACHEOP_WAR 0
+#define R4600_V2_HIT_CACHEOP_WAR 0
+#define R5432_CP0_INTERRUPT_WAR 0
+#define BCM1250_M3_WAR 0
+#define SIBYTE_1956_WAR 0
+#define MIPS4K_ICACHE_REFILL_WAR 1
+#define MIPS_CACHE_SYNC_WAR 1
+#define TX49XX_ICACHE_INDEX_INV_WAR 0
+#define ICACHE_REFILLS_WORKAROUND_WAR 1
+#define R10000_LLSC_WAR 0
+#define MIPS34K_MISSED_ITLB_WAR 0
+
+#endif /* __ASM_MIPS_MACH_MIPS_WAR_H */