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Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Browse Source 
Pull MIPS fixes from Ralf Baechle:
 "A fair number of 4.2 fixes also because Markos opened the flood gates.

   - Patch up the math used calculate the location for the page bitmap.

   - The FDC (Not what you think, FDC stands for Fast Debug Channel) IRQ
     around was causing issues on non-Malta platforms, so move the code
     to a Malta specific location.

   - A spelling fix replicated through several files.

   - Fix to the emulation of an R2 instruction for R6 cores.

   - Fix the JR emulation for R6.

   - Further patching of mindless 64 bit issues.

   - Ensure the kernel won't crash on CPUs with L2 caches with >= 8
     ways.

   - Use compat_sys_getsockopt for O32 ABI on 64 bit kernels.

   - Fix cache flushing for multithreaded cores.

   - A build fix"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: O32: Use compat_sys_getsockopt.
  MIPS: c-r4k: Extend way_string array
  MIPS: Pistachio: Support CDMM & Fast Debug Channel
  MIPS: Malta: Make GIC FDC IRQ workaround Malta specific
  MIPS: c-r4k: Fix cache flushing for MT cores
  Revert "MIPS: Kconfig: Disable SMP/CPS for 64-bit"
  MIPS: cps-vec: Use macros for various arithmetics and memory operations
  MIPS: kernel: cps-vec: Replace KSEG0 with CKSEG0
  MIPS: kernel: cps-vec: Use ta0-ta3 pseudo-registers for 64-bit
  MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
  MIPS: kernel: cps-vec: Replace 'la' macro with PTR_LA
  MIPS: kernel: smp-cps: Fix 64-bit compatibility errors due to pointer casting
  MIPS: Fix erroneous JR emulation for MIPS R6
  MIPS: Fix branch emulation for BLTC and BGEC instructions
  MIPS: kernel: traps: Fix broken indentation
  MIPS: bootmem: Don't use memory holes for page bitmap
  MIPS: O32: Do not handle require 32 bytes from the stack to be readable.
  MIPS, CPUFREQ: Fix spelling of Institute.
  MIPS: Lemote 2F: Fix build caused by recent mass rename.
This commit is contained in:
Linus Torvalds 2015-07-12 13:55:24 -07:00
commit 7fbb58a065
27 changed files with 214 additions and 123 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/Kconfig
View File

@ -2231,7 +2231,7 @@ config MIPS_CMP
config MIPS_CPS
bool "MIPS Coherent Processing System support"
depends on SYS_SUPPORTS_MIPS_CPS && !64BIT
depends on SYS_SUPPORTS_MIPS_CPS
select MIPS_CM
select MIPS_CPC
select MIPS_CPS_PM if HOTPLUG_CPU

2
arch/mips/include/asm/mach-loongson64/mmzone.h
View File

@ -1,6 +1,6 @@
/*
* Copyright (C) 2010 Loongson Inc. & Lemote Inc. &
* Insititute of Computing Technology
* Institute of Computing Technology
* Author: Xiang Gao, gaoxiang@ict.ac.cn
* Huacai Chen, chenhc@lemote.com
* Xiaofu Meng, Shuangshuang Zhang

1
arch/mips/include/asm/smp.h
View File

@ -23,6 +23,7 @@
extern int smp_num_siblings;
extern cpumask_t cpu_sibling_map[];
extern cpumask_t cpu_core_map[];
extern cpumask_t cpu_foreign_map;
#define raw_smp_processor_id() (current_thread_info()->cpu)

4
arch/mips/kernel/branch.c
View File

@ -600,7 +600,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
break;
case blezl_op: /* not really i_format */
if (NO_R6EMU)
if (!insn.i_format.rt && NO_R6EMU)
goto sigill_r6;
case blez_op:
/*
@ -635,7 +635,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
break;
case bgtzl_op:
if (NO_R6EMU)
if (!insn.i_format.rt && NO_R6EMU)
goto sigill_r6;
case bgtz_op:
/*

96
arch/mips/kernel/cps-vec.S
View File

@ -60,7 +60,7 @@ LEAF(mips_cps_core_entry)
nop
/* This is an NMI */
la k0, nmi_handler
PTR_LA k0, nmi_handler
jr k0
nop
@ -107,10 +107,10 @@ not_nmi:
mul t1, t1, t0
mul t1, t1, t2
li a0, KSEG0
add a1, a0, t1
li a0, CKSEG0
PTR_ADD a1, a0, t1
1: cache Index_Store_Tag_I, 0(a0)
add a0, a0, t0
PTR_ADD a0, a0, t0
bne a0, a1, 1b
nop
icache_done:
@ -134,12 +134,12 @@ icache_done:
mul t1, t1, t0
mul t1, t1, t2
li a0, KSEG0
addu a1, a0, t1
subu a1, a1, t0
li a0, CKSEG0
PTR_ADDU a1, a0, t1
PTR_SUBU a1, a1, t0
1: cache Index_Store_Tag_D, 0(a0)
bne a0, a1, 1b
add a0, a0, t0
PTR_ADD a0, a0, t0
dcache_done:
/* Set Kseg0 CCA to that in s0 */
@ -152,11 +152,11 @@ dcache_done:
/* Enter the coherent domain */
li t0, 0xff
sw t0, GCR_CL_COHERENCE_OFS(v1)
PTR_S t0, GCR_CL_COHERENCE_OFS(v1)
ehb
/* Jump to kseg0 */
la t0, 1f
PTR_LA t0, 1f
jr t0
nop
@ -178,9 +178,9 @@ dcache_done:
nop
/* Off we go! */
lw t1, VPEBOOTCFG_PC(v0)
lw gp, VPEBOOTCFG_GP(v0)
lw sp, VPEBOOTCFG_SP(v0)
PTR_L t1, VPEBOOTCFG_PC(v0)
PTR_L gp, VPEBOOTCFG_GP(v0)
PTR_L sp, VPEBOOTCFG_SP(v0)
jr t1
nop
END(mips_cps_core_entry)
@ -217,7 +217,7 @@ LEAF(excep_intex)
.org 0x480
LEAF(excep_ejtag)
la k0, ejtag_debug_handler
PTR_LA k0, ejtag_debug_handler
jr k0
nop
END(excep_ejtag)
@ -229,7 +229,7 @@ LEAF(mips_cps_core_init)
nop
.set push
.set mips32r2
.set mips64r2
.set mt
/* Only allow 1 TC per VPE to execute... */
@ -237,7 +237,7 @@ LEAF(mips_cps_core_init)
/* ...and for the moment only 1 VPE */
dvpe
la t1, 1f
PTR_LA t1, 1f
jr.hb t1
nop
@ -250,25 +250,25 @@ LEAF(mips_cps_core_init)
mfc0 t0, CP0_MVPCONF0
srl t0, t0, MVPCONF0_PVPE_SHIFT
andi t0, t0, (MVPCONF0_PVPE >> MVPCONF0_PVPE_SHIFT)
addiu t7, t0, 1
addiu ta3, t0, 1
/* If there's only 1, we're done */
beqz t0, 2f
nop
/* Loop through each VPE within this core */
li t5, 1
li ta1, 1
1: /* Operate on the appropriate TC */
mtc0 t5, CP0_VPECONTROL
mtc0 ta1, CP0_VPECONTROL
ehb
/* Bind TC to VPE (1:1 TC:VPE mapping) */
mttc0 t5, CP0_TCBIND
mttc0 ta1, CP0_TCBIND
/* Set exclusive TC, non-active, master */
li t0, VPECONF0_MVP
sll t1, t5, VPECONF0_XTC_SHIFT
sll t1, ta1, VPECONF0_XTC_SHIFT
or t0, t0, t1
mttc0 t0, CP0_VPECONF0
@ -280,8 +280,8 @@ LEAF(mips_cps_core_init)
mttc0 t0, CP0_TCHALT
/* Next VPE */
addiu t5, t5, 1
slt t0, t5, t7
addiu ta1, ta1, 1
slt t0, ta1, ta3
bnez t0, 1b
nop
@ -298,19 +298,19 @@ LEAF(mips_cps_core_init)
LEAF(mips_cps_boot_vpes)
/* Retrieve CM base address */
la t0, mips_cm_base
lw t0, 0(t0)
PTR_LA t0, mips_cm_base
PTR_L t0, 0(t0)
/* Calculate a pointer to this cores struct core_boot_config */
lw t0, GCR_CL_ID_OFS(t0)
PTR_L t0, GCR_CL_ID_OFS(t0)
li t1, COREBOOTCFG_SIZE
mul t0, t0, t1
la t1, mips_cps_core_bootcfg
lw t1, 0(t1)
addu t0, t0, t1
PTR_LA t1, mips_cps_core_bootcfg
PTR_L t1, 0(t1)
PTR_ADDU t0, t0, t1
/* Calculate this VPEs ID. If the core doesn't support MT use 0 */
has_mt t6, 1f
has_mt ta2, 1f
li t9, 0
/* Find the number of VPEs present in the core */
@ -334,24 +334,24 @@ LEAF(mips_cps_boot_vpes)
1: /* Calculate a pointer to this VPEs struct vpe_boot_config */
li t1, VPEBOOTCFG_SIZE
mul v0, t9, t1
lw t7, COREBOOTCFG_VPECONFIG(t0)
addu v0, v0, t7
PTR_L ta3, COREBOOTCFG_VPECONFIG(t0)
PTR_ADDU v0, v0, ta3
#ifdef CONFIG_MIPS_MT
/* If the core doesn't support MT then return */
bnez t6, 1f
bnez ta2, 1f
nop
jr ra
nop
.set push
.set mips32r2
.set mips64r2
.set mt
1: /* Enter VPE configuration state */
dvpe
la t1, 1f
PTR_LA t1, 1f
jr.hb t1
nop
1: mfc0 t1, CP0_MVPCONTROL
@ -360,12 +360,12 @@ LEAF(mips_cps_boot_vpes)
ehb
/* Loop through each VPE */
lw t6, COREBOOTCFG_VPEMASK(t0)
move t8, t6
li t5, 0
PTR_L ta2, COREBOOTCFG_VPEMASK(t0)
move t8, ta2
li ta1, 0
/* Check whether the VPE should be running. If not, skip it */
1: andi t0, t6, 1
1: andi t0, ta2, 1
beqz t0, 2f
nop
@ -373,7 +373,7 @@ LEAF(mips_cps_boot_vpes)
mfc0 t0, CP0_VPECONTROL
ori t0, t0, VPECONTROL_TARGTC
xori t0, t0, VPECONTROL_TARGTC
or t0, t0, t5
or t0, t0, ta1
mtc0 t0, CP0_VPECONTROL
ehb
@ -384,8 +384,8 @@ LEAF(mips_cps_boot_vpes)
/* Calculate a pointer to the VPEs struct vpe_boot_config */
li t0, VPEBOOTCFG_SIZE
mul t0, t0, t5
addu t0, t0, t7
mul t0, t0, ta1
addu t0, t0, ta3
/* Set the TC restart PC */
lw t1, VPEBOOTCFG_PC(t0)
@ -423,9 +423,9 @@ LEAF(mips_cps_boot_vpes)
mttc0 t0, CP0_VPECONF0
/* Next VPE */
2: srl t6, t6, 1
addiu t5, t5, 1
bnez t6, 1b
2: srl ta2, ta2, 1
addiu ta1, ta1, 1
bnez ta2, 1b
nop
/* Leave VPE configuration state */
@ -445,7 +445,7 @@ LEAF(mips_cps_boot_vpes)
/* This VPE should be offline, halt the TC */
li t0, TCHALT_H
mtc0 t0, CP0_TCHALT
la t0, 1f
PTR_LA t0, 1f
1: jr.hb t0
nop
@ -466,10 +466,10 @@ LEAF(mips_cps_boot_vpes)
.set noat
lw $1, TI_CPU(gp)
sll $1, $1, LONGLOG
la \dest, __per_cpu_offset
PTR_LA \dest, __per_cpu_offset
addu $1, $1, \dest
lw $1, 0($1)
la \dest, cps_cpu_state
PTR_LA \dest, cps_cpu_state
addu \dest, \dest, $1
.set pop
.endm

37
arch/mips/kernel/scall32-o32.S
View File

@ -73,10 +73,11 @@ NESTED(handle_sys, PT_SIZE, sp)
.set noreorder
.set nomacro
1: user_lw(t5, 16(t0)) # argument #5 from usp
4: user_lw(t6, 20(t0)) # argument #6 from usp
3: user_lw(t7, 24(t0)) # argument #7 from usp
2: user_lw(t8, 28(t0)) # argument #8 from usp
load_a4: user_lw(t5, 16(t0)) # argument #5 from usp
load_a5: user_lw(t6, 20(t0)) # argument #6 from usp
load_a6: user_lw(t7, 24(t0)) # argument #7 from usp
load_a7: user_lw(t8, 28(t0)) # argument #8 from usp
loads_done:
sw t5, 16(sp) # argument #5 to ksp
sw t6, 20(sp) # argument #6 to ksp
@ -85,10 +86,10 @@ NESTED(handle_sys, PT_SIZE, sp)
.set pop
.section __ex_table,"a"
PTR 1b,bad_stack
PTR 2b,bad_stack
PTR 3b,bad_stack
PTR 4b,bad_stack
PTR load_a4, bad_stack_a4
PTR load_a5, bad_stack_a5
PTR load_a6, bad_stack_a6
PTR load_a7, bad_stack_a7
.previous
lw t0, TI_FLAGS($28) # syscall tracing enabled?
@ -153,8 +154,8 @@ syscall_trace_entry:
/* ------------------------------------------------------------------------ */
/*
* The stackpointer for a call with more than 4 arguments is bad.
* We probably should handle this case a bit more drastic.
* Our open-coded access area sanity test for the stack pointer
* failed. We probably should handle this case a bit more drastic.
*/
bad_stack:
li v0, EFAULT
@ -163,6 +164,22 @@ bad_stack:
sw t0, PT_R7(sp)
j o32_syscall_exit
bad_stack_a4:
li t5, 0
b load_a5
bad_stack_a5:
li t6, 0
b load_a6
bad_stack_a6:
li t7, 0
b load_a7
bad_stack_a7:
li t8, 0
b loads_done
/*
* The system call does not exist in this kernel
*/

35
arch/mips/kernel/scall64-o32.S
View File

@ -69,16 +69,17 @@ NESTED(handle_sys, PT_SIZE, sp)
daddu t1, t0, 32
bltz t1, bad_stack
1: lw a4, 16(t0) # argument #5 from usp
2: lw a5, 20(t0) # argument #6 from usp
3: lw a6, 24(t0) # argument #7 from usp
4: lw a7, 28(t0) # argument #8 from usp (for indirect syscalls)
load_a4: lw a4, 16(t0) # argument #5 from usp
load_a5: lw a5, 20(t0) # argument #6 from usp
load_a6: lw a6, 24(t0) # argument #7 from usp
load_a7: lw a7, 28(t0) # argument #8 from usp
loads_done:
.section __ex_table,"a"
PTR 1b, bad_stack
PTR 2b, bad_stack
PTR 3b, bad_stack
PTR 4b, bad_stack
PTR load_a4, bad_stack_a4
PTR load_a5, bad_stack_a5
PTR load_a6, bad_stack_a6
PTR load_a7, bad_stack_a7
.previous
li t1, _TIF_WORK_SYSCALL_ENTRY
@ -167,6 +168,22 @@ bad_stack:
sd t0, PT_R7(sp)
j o32_syscall_exit
bad_stack_a4:
li a4, 0
b load_a5
bad_stack_a5:
li a5, 0
b load_a6
bad_stack_a6:
li a6, 0
b load_a7
bad_stack_a7:
li a7, 0
b loads_done
not_o32_scall:
/*
* This is not an o32 compatibility syscall, pass it on
@ -383,7 +400,7 @@ EXPORT(sys32_call_table)
PTR sys_connect /* 4170 */
PTR sys_getpeername
PTR sys_getsockname
PTR sys_getsockopt
PTR compat_sys_getsockopt
PTR sys_listen
PTR compat_sys_recv /* 4175 */
PTR compat_sys_recvfrom

13
arch/mips/kernel/setup.c
View File

@ -337,6 +337,11 @@ static void __init bootmem_init(void)
min_low_pfn = start;
if (end <= reserved_end)
continue;
#ifdef CONFIG_BLK_DEV_INITRD
/* mapstart should be after initrd_end */
if (initrd_end && end <= (unsigned long)PFN_UP(__pa(initrd_end)))
continue;
#endif
if (start >= mapstart)
continue;
mapstart = max(reserved_end, start);
@ -366,14 +371,6 @@ static void __init bootmem_init(void)
max_low_pfn = PFN_DOWN(HIGHMEM_START);
}
#ifdef CONFIG_BLK_DEV_INITRD
/*
* mapstart should be after initrd_end
*/
if (initrd_end)
mapstart = max(mapstart, (unsigned long)PFN_UP(__pa(initrd_end)));
#endif
/*
* Initialize the boot-time allocator with low memory only.
*/

6
arch/mips/kernel/smp-cps.c
View File

@ -133,7 +133,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
/*
* Patch the start of mips_cps_core_entry to provide:
*
* v0 = CM base address
* v1 = CM base address
* s0 = kseg0 CCA
*/
entry_code = (u32 *)&mips_cps_core_entry;
@ -369,7 +369,7 @@ void play_dead(void)
static void wait_for_sibling_halt(void *ptr_cpu)
{
unsigned cpu = (unsigned)ptr_cpu;
unsigned cpu = (unsigned long)ptr_cpu;
unsigned vpe_id = cpu_vpe_id(&cpu_data[cpu]);
unsigned halted;
unsigned long flags;
@ -430,7 +430,7 @@ static void cps_cpu_die(unsigned int cpu)
*/
err = smp_call_function_single(cpu_death_sibling,
wait_for_sibling_halt,
(void *)cpu, 1);
(void *)(unsigned long)cpu, 1);
if (err)
panic("Failed to call remote sibling CPU\n");
}

44
arch/mips/kernel/smp.c
View File

@ -63,6 +63,13 @@ EXPORT_SYMBOL(cpu_sibling_map);
cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(cpu_core_map);
/*
* A logcal cpu mask containing only one VPE per core to
* reduce the number of IPIs on large MT systems.
*/
cpumask_t cpu_foreign_map __read_mostly;
EXPORT_SYMBOL(cpu_foreign_map);
/* representing cpus for which sibling maps can be computed */
static cpumask_t cpu_sibling_setup_map;
@ -103,6 +110,29 @@ static inline void set_cpu_core_map(int cpu)
}
}
/*
* Calculate a new cpu_foreign_map mask whenever a
* new cpu appears or disappears.
*/
static inline void calculate_cpu_foreign_map(void)
{
int i, k, core_present;
cpumask_t temp_foreign_map;
/* Re-calculate the mask */
for_each_online_cpu(i) {
core_present = 0;
for_each_cpu(k, &temp_foreign_map)
if (cpu_data[i].package == cpu_data[k].package &&
cpu_data[i].core == cpu_data[k].core)
core_present = 1;
if (!core_present)
cpumask_set_cpu(i, &temp_foreign_map);
}
cpumask_copy(&cpu_foreign_map, &temp_foreign_map);
}
struct plat_smp_ops *mp_ops;
EXPORT_SYMBOL(mp_ops);
@ -146,6 +176,8 @@ asmlinkage void start_secondary(void)
set_cpu_sibling_map(cpu);
set_cpu_core_map(cpu);
calculate_cpu_foreign_map();
cpumask_set_cpu(cpu, &cpu_callin_map);
synchronise_count_slave(cpu);
@ -173,9 +205,18 @@ void __irq_entry smp_call_function_interrupt(void)
static void stop_this_cpu(void *dummy)
{
/*
* Remove this CPU:
* Remove this CPU. Be a bit slow here and
* set the bits for every online CPU so we don't miss
* any IPI whilst taking this VPE down.
*/
cpumask_copy(&cpu_foreign_map, cpu_online_mask);
/* Make it visible to every other CPU */
smp_mb();
set_cpu_online(smp_processor_id(), false);
calculate_cpu_foreign_map();
local_irq_disable();
while (1);
}
@ -197,6 +238,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
mp_ops->prepare_cpus(max_cpus);
set_cpu_sibling_map(0);
set_cpu_core_map(0);
calculate_cpu_foreign_map();
#ifndef CONFIG_HOTPLUG_CPU
init_cpu_present(cpu_possible_mask);
#endif

8
arch/mips/kernel/traps.c
View File

@ -2130,10 +2130,10 @@ void per_cpu_trap_init(bool is_boot_cpu)
BUG_ON(current->mm);
enter_lazy_tlb(&init_mm, current);
/* Boot CPU's cache setup in setup_arch(). */
if (!is_boot_cpu)
cpu_cache_init();
tlb_init();
/* Boot CPU's cache setup in setup_arch(). */
if (!is_boot_cpu)
cpu_cache_init();
tlb_init();
TLBMISS_HANDLER_SETUP();
}

2
arch/mips/loongson64/common/bonito-irq.c
View File

@ -3,7 +3,7 @@
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
* Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it

2
arch/mips/loongson64/common/cmdline.c
View File

@ -6,7 +6,7 @@
* Copyright 2003 ICT CAS
* Author: Michael Guo <guoyi@ict.ac.cn>
*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* Copyright (C) 2009 Lemote Inc.

2
arch/mips/loongson64/common/cs5536/cs5536_mfgpt.c
View File

@ -1,7 +1,7 @@
/*
* CS5536 General timer functions
*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Yanhua, yanh@lemote.com
*
* Copyright (C) 2009 Lemote Inc.

2
arch/mips/loongson64/common/env.c
View File

@ -6,7 +6,7 @@
* Copyright 2003 ICT CAS
* Author: Michael Guo <guoyi@ict.ac.cn>
*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* Copyright (C) 2009 Lemote Inc.

2
arch/mips/loongson64/common/irq.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it

2
arch/mips/loongson64/common/setup.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it

2
arch/mips/loongson64/fuloong-2e/irq.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
* Author: Fuxin Zhang, zhangfx@lemote.com
*
* This program is free software; you can redistribute it and/or modify it

4
arch/mips/loongson64/lemote-2f/clock.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2006 - 2008 Lemote Inc. & Institute of Computing Technology
* Author: Yanhua, yanh@lemote.com
*
* This file is subject to the terms and conditions of the GNU General Public
@ -15,7 +15,7 @@
#include <linux/spinlock.h>
#include <asm/clock.h>
#include <asm/mach-loongson/loongson.h>
#include <asm/mach-loongson64/loongson.h>
static LIST_HEAD(clock_list);
static DEFINE_SPINLOCK(clock_lock);

2
arch/mips/loongson64/loongson-3/numa.c
View File

@ -1,6 +1,6 @@
/*
* Copyright (C) 2010 Loongson Inc. & Lemote Inc. &
* Insititute of Computing Technology
* Institute of Computing Technology
* Author: Xiang Gao, gaoxiang@ict.ac.cn
* Huacai Chen, chenhc@lemote.com
* Xiaofu Meng, Shuangshuang Zhang

6
arch/mips/math-emu/cp1emu.c
View File

@ -451,7 +451,7 @@ static int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
/* Fall through */
case jr_op:
/* For R6, JR already emulated in jalr_op */
if (NO_R6EMU && insn.r_format.opcode == jr_op)
if (NO_R6EMU && insn.r_format.func == jr_op)
break;
*contpc = regs->regs[insn.r_format.rs];
return 1;
@ -551,7 +551,7 @@ static int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
dec_insn.next_pc_inc;
return 1;
case blezl_op:
if (NO_R6EMU)
if (!insn.i_format.rt && NO_R6EMU)
break;
case blez_op:
@ -588,7 +588,7 @@ static int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
dec_insn.next_pc_inc;
return 1;
case bgtzl_op:
if (NO_R6EMU)
if (!insn.i_format.rt && NO_R6EMU)
break;
case bgtz_op:
/*

18
arch/mips/mm/c-r4k.c
View File

@ -37,6 +37,7 @@
#include <asm/cacheflush.h> /* for run_uncached() */
#include <asm/traps.h>
#include <asm/dma-coherence.h>
#include <asm/mips-cm.h>
/*
* Special Variant of smp_call_function for use by cache functions:
@ -51,9 +52,16 @@ static inline void r4k_on_each_cpu(void (*func) (void *info), void *info)
{
preempt_disable();
#ifndef CONFIG_MIPS_MT_SMP
smp_call_function(func, info, 1);
#endif
/*
* The Coherent Manager propagates address-based cache ops to other
* cores but not index-based ops. However, r4k_on_each_cpu is used
* in both cases so there is no easy way to tell what kind of op is
* executed to the other cores. The best we can probably do is
* to restrict that call when a CM is not present because both
* CM-based SMP protocols (CMP & CPS) restrict index-based cache ops.
*/
if (!mips_cm_present())
smp_call_function_many(&cpu_foreign_map, func, info, 1);
func(info);
preempt_enable();
}
@ -937,7 +945,9 @@ static void b5k_instruction_hazard(void)
}
static char *way_string[] = { NULL, "direct mapped", "2-way",
"3-way", "4-way", "5-way", "6-way", "7-way", "8-way"
"3-way", "4-way", "5-way", "6-way", "7-way", "8-way",
"9-way", "10-way", "11-way", "12-way",
"13-way", "14-way", "15-way", "16-way",
};
static void probe_pcache(void)

20
arch/mips/mti-malta/malta-time.c
View File

@ -119,18 +119,24 @@ void read_persistent_clock(struct timespec *ts)
int get_c0_fdc_int(void)
{
int mips_cpu_fdc_irq;
/*
* Some cores claim the FDC is routable through the GIC, but it doesn't
* actually seem to be connected for those Malta bitstreams.
*/
switch (current_cpu_type()) {
case CPU_INTERAPTIV:
case CPU_PROAPTIV:
return -1;
};
if (cpu_has_veic)
mips_cpu_fdc_irq = -1;
return -1;
else if (gic_present)
mips_cpu_fdc_irq = gic_get_c0_fdc_int();
return gic_get_c0_fdc_int();
else if (cp0_fdc_irq >= 0)
mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
return MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
else
mips_cpu_fdc_irq = -1;
return mips_cpu_fdc_irq;
return -1;
}
int get_c0_perfcount_int(void)

8
arch/mips/pistachio/init.c
View File

@ -63,13 +63,19 @@ void __init plat_mem_setup(void)
plat_setup_iocoherency();
}
#define DEFAULT_CPC_BASE_ADDR 0x1bde0000
#define DEFAULT_CPC_BASE_ADDR 0x1bde0000
#define DEFAULT_CDMM_BASE_ADDR 0x1bdd0000
phys_addr_t mips_cpc_default_phys_base(void)
{
return DEFAULT_CPC_BASE_ADDR;
}
phys_addr_t mips_cdmm_phys_base(void)
{
return DEFAULT_CDMM_BASE_ADDR;
}
static void __init mips_nmi_setup(void)
{
void *base;

5
arch/mips/pistachio/time.c
View File

@ -27,6 +27,11 @@ int get_c0_perfcount_int(void)
return gic_get_c0_perfcount_int();
}
int get_c0_fdc_int(void)
{
return gic_get_c0_fdc_int();
}
void __init plat_time_init(void)
{
struct device_node *np;

2
drivers/cpufreq/loongson2_cpufreq.c
View File

@ -3,7 +3,7 @@
*
* The 2E revision of loongson processor not support this feature.
*
* Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology
* Copyright (C) 2006 - 2008 Lemote Inc. & Institute of Computing Technology
* Author: Yanhua, yanh@lemote.com
*
* This file is subject to the terms and conditions of the GNU General Public

10
drivers/irqchip/irq-mips-gic.c
View File

@ -257,16 +257,6 @@ int gic_get_c0_fdc_int(void)
return MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
}
/*
* Some cores claim the FDC is routable but it doesn't actually seem to
* be connected.
*/
switch (current_cpu_type()) {
case CPU_INTERAPTIV:
case CPU_PROAPTIV:
return -1;
}
return irq_create_mapping(gic_irq_domain,
GIC_LOCAL_TO_HWIRQ(GIC_LOCAL_INT_FDC));
}