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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:
 "Another round of MIPS fixes:

   - compressed boot: Ignore a generated .c file

   - VDSO: Fix a register clobber list

   - DECstation: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression

   - Octeon: Fix recent cleanups that cleaned away a bit too much thus
     breaking the arch side of the EDAC and USB drivers.

   - uasm: Fix duplicate const in "const struct foo const bar[]" which
     GCC 7.1 no longer accepts.

   - Fix race on setting and getting cpu_online_mask

   - Fix preemption issue. To do so cleanly introduce macro to get the
     size of L3 cache line.

   - Revert include cleanup that sometimes results in build error

   - MicroMIPS uses bit 0 of the PC to indicate microMIPS mode. Make
     sure this bit is set for kernel entry as well.

   - Prevent configuring the kernel for both microMIPS and MT. There are
     no such CPUs currently and thus the combination is unsupported and
     results in build errors.

  This has been sitting in linux-next for a few days and has survived
  automated testing by Imagination's test farm. No known regressions
  pending except a number of issues that crept up due to lots of people
  switching to GCC 7.1"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Set ISA bit in entry-y for microMIPS kernels
  MIPS: Prevent building MT support for microMIPS kernels
  MIPS: PCI: Fix smp_processor_id() in preemptible
  MIPS: Introduce cpu_tcache_line_size
  MIPS: DEC: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression
  MIPS: VDSO: Fix clobber lists in fallback code paths
  Revert "MIPS: Don't unnecessarily include kmalloc.h into <asm/cache.h>."
  MIPS: OCTEON: Fix USB platform code breakage.
  MIPS: Octeon: Fix broken EDAC driver.
  MIPS: gitignore: ignore generated .c files
  MIPS: Fix race on setting and getting cpu_online_mask
  MIPS: mm: remove duplicate "const" qualifier on insn_table
This commit is contained in:
Linus Torvalds 2017-08-13 15:34:28 -07:00
commit b2298fc900
14 changed files with 137 additions and 42 deletions
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2
arch/mips/Kconfig
View file

@ -2260,7 +2260,7 @@ config CPU_R4K_CACHE_TLB
config MIPS_MT_SMP
bool "MIPS MT SMP support (1 TC on each available VPE)"
depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select SYNC_R4K

15
arch/mips/Makefile
View file

@ -243,8 +243,21 @@ include arch/mips/Kbuild.platforms
ifdef CONFIG_PHYSICAL_START
load-y = $(CONFIG_PHYSICAL_START)
endif
entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
entry-noisa-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
| grep "\bkernel_entry\b" | cut -f1 -d \ )
ifdef CONFIG_CPU_MICROMIPS
#
# Set the ISA bit, since the kernel_entry symbol in the ELF will have it
# clear which would lead to images containing addresses which bootloaders may
# jump to as MIPS32 code.
#
entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \
$(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \
$(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y)))))))))
else
entry-y = $(entry-noisa-y)
endif
cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
drivers-$(CONFIG_PCI) += arch/mips/pci/

2
arch/mips/boot/compressed/.gitignore vendored Normal file
View file

@ -0,0 +1,2 @@
ashldi3.c
bswapsi.c

2
arch/mips/cavium-octeon/octeon-usb.c
View file

@ -13,9 +13,9 @@
#include <linux/mutex.h>
#include <linux/delay.h>
#include <linux/of_platform.h>
#include <linux/io.h>
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-gpio-defs.h>
/* USB Control Register */
union cvm_usbdrd_uctl_ctl {

34
arch/mips/dec/int-handler.S
View file

@ -147,23 +147,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1, cpu_mask_nr_tbl
#if (_MIPS_SZPTR == 32)
#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, cpu_mask_nr_tbl
lui t1, %hi(cpu_mask_nr_tbl)
addiu t1, %lo(cpu_mask_nr_tbl)
#endif
#if (_MIPS_SZPTR == 64)
# open coded dla t1, cpu_mask_nr_tbl
.set push
.set noat
lui t1, %highest(cpu_mask_nr_tbl)
lui AT, %hi(cpu_mask_nr_tbl)
daddiu t1, t1, %higher(cpu_mask_nr_tbl)
daddiu AT, AT, %lo(cpu_mask_nr_tbl)
dsll t1, 32
daddu t1, t1, AT
.set pop
#else
#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
1: lw t2,(t1)
nop
@ -214,23 +203,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1,asic_mask_nr_tbl
#if (_MIPS_SZPTR == 32)
#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, asic_mask_nr_tbl
lui t1, %hi(asic_mask_nr_tbl)
addiu t1, %lo(asic_mask_nr_tbl)
#endif
#if (_MIPS_SZPTR == 64)
# open coded dla t1, asic_mask_nr_tbl
.set push
.set noat
lui t1, %highest(asic_mask_nr_tbl)
lui AT, %hi(asic_mask_nr_tbl)
daddiu t1, t1, %higher(asic_mask_nr_tbl)
daddiu AT, AT, %lo(asic_mask_nr_tbl)
dsll t1, 32
daddu t1, t1, AT
.set pop
#else
#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
2: lw t2,(t1)
nop

2
arch/mips/include/asm/cache.h
View file

@ -9,6 +9,8 @@
#ifndef _ASM_CACHE_H
#define _ASM_CACHE_H
#include <kmalloc.h>
#define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)

3
arch/mips/include/asm/cpu-features.h
View file

@ -428,6 +428,9 @@
#ifndef cpu_scache_line_size
#define cpu_scache_line_size() cpu_data[0].scache.linesz
#endif
#ifndef cpu_tcache_line_size
#define cpu_tcache_line_size() cpu_data[0].tcache.linesz
#endif
#ifndef cpu_hwrena_impl_bits
#define cpu_hwrena_impl_bits 0

37
arch/mips/include/asm/octeon/cvmx-l2c-defs.h
View file

@ -33,6 +33,10 @@
#define CVMX_L2C_DBG (CVMX_ADD_IO_SEG(0x0001180080000030ull))
#define CVMX_L2C_CFG (CVMX_ADD_IO_SEG(0x0001180080000000ull))
#define CVMX_L2C_CTL (CVMX_ADD_IO_SEG(0x0001180080800000ull))
#define CVMX_L2C_ERR_TDTX(block_id) \
(CVMX_ADD_IO_SEG(0x0001180080A007E0ull) + ((block_id) & 3) * 0x40000ull)
#define CVMX_L2C_ERR_TTGX(block_id) \
(CVMX_ADD_IO_SEG(0x0001180080A007E8ull) + ((block_id) & 3) * 0x40000ull)
#define CVMX_L2C_LCKBASE (CVMX_ADD_IO_SEG(0x0001180080000058ull))
#define CVMX_L2C_LCKOFF (CVMX_ADD_IO_SEG(0x0001180080000060ull))
#define CVMX_L2C_PFCTL (CVMX_ADD_IO_SEG(0x0001180080000090ull))
@ -66,9 +70,40 @@
((offset) & 1) * 8)
#define CVMX_L2C_WPAR_PPX(offset) (CVMX_ADD_IO_SEG(0x0001180080840000ull) + \
((offset) & 31) * 8)
#define CVMX_L2D_FUS3 (CVMX_ADD_IO_SEG(0x00011800800007B8ull))
union cvmx_l2c_err_tdtx {
uint64_t u64;
struct cvmx_l2c_err_tdtx_s {
__BITFIELD_FIELD(uint64_t dbe:1,
__BITFIELD_FIELD(uint64_t sbe:1,
__BITFIELD_FIELD(uint64_t vdbe:1,
__BITFIELD_FIELD(uint64_t vsbe:1,
__BITFIELD_FIELD(uint64_t syn:10,
__BITFIELD_FIELD(uint64_t reserved_22_49:28,
__BITFIELD_FIELD(uint64_t wayidx:18,
__BITFIELD_FIELD(uint64_t reserved_2_3:2,
__BITFIELD_FIELD(uint64_t type:2,
;)))))))))
} s;
};
union cvmx_l2c_err_ttgx {
uint64_t u64;
struct cvmx_l2c_err_ttgx_s {
__BITFIELD_FIELD(uint64_t dbe:1,
__BITFIELD_FIELD(uint64_t sbe:1,
__BITFIELD_FIELD(uint64_t noway:1,
__BITFIELD_FIELD(uint64_t reserved_56_60:5,
__BITFIELD_FIELD(uint64_t syn:6,
__BITFIELD_FIELD(uint64_t reserved_22_49:28,
__BITFIELD_FIELD(uint64_t wayidx:15,
__BITFIELD_FIELD(uint64_t reserved_2_6:5,
__BITFIELD_FIELD(uint64_t type:2,
;)))))))))
} s;
};
union cvmx_l2c_cfg {
uint64_t u64;
struct cvmx_l2c_cfg_s {

60
arch/mips/include/asm/octeon/cvmx-l2d-defs.h Normal file
View file

@ -0,0 +1,60 @@
/***********************license start***************
* Author: Cavium Networks
*
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
* Copyright (c) 2003-2017 Cavium, Inc.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*
* This file is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this file; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* or visit http://www.gnu.org/licenses/.
*
* This file may also be available under a different license from Cavium.
* Contact Cavium Networks for more information
***********************license end**************************************/
#ifndef __CVMX_L2D_DEFS_H__
#define __CVMX_L2D_DEFS_H__
#define CVMX_L2D_ERR (CVMX_ADD_IO_SEG(0x0001180080000010ull))
#define CVMX_L2D_FUS3 (CVMX_ADD_IO_SEG(0x00011800800007B8ull))
union cvmx_l2d_err {
uint64_t u64;
struct cvmx_l2d_err_s {
__BITFIELD_FIELD(uint64_t reserved_6_63:58,
__BITFIELD_FIELD(uint64_t bmhclsel:1,
__BITFIELD_FIELD(uint64_t ded_err:1,
__BITFIELD_FIELD(uint64_t sec_err:1,
__BITFIELD_FIELD(uint64_t ded_intena:1,
__BITFIELD_FIELD(uint64_t sec_intena:1,
__BITFIELD_FIELD(uint64_t ecc_ena:1,
;)))))))
} s;
};
union cvmx_l2d_fus3 {
uint64_t u64;
struct cvmx_l2d_fus3_s {
__BITFIELD_FIELD(uint64_t reserved_40_63:24,
__BITFIELD_FIELD(uint64_t ema_ctl:3,
__BITFIELD_FIELD(uint64_t reserved_34_36:3,
__BITFIELD_FIELD(uint64_t q3fus:34,
;))))
} s;
};
#endif

1
arch/mips/include/asm/octeon/cvmx.h
View file

@ -62,6 +62,7 @@ enum cvmx_mips_space {
#include <asm/octeon/cvmx-iob-defs.h>
#include <asm/octeon/cvmx-ipd-defs.h>
#include <asm/octeon/cvmx-l2c-defs.h>
#include <asm/octeon/cvmx-l2d-defs.h>
#include <asm/octeon/cvmx-l2t-defs.h>
#include <asm/octeon/cvmx-led-defs.h>
#include <asm/octeon/cvmx-mio-defs.h>

6
arch/mips/kernel/smp.c
View file

@ -376,9 +376,6 @@ asmlinkage void start_secondary(void)
cpumask_set_cpu(cpu, &cpu_coherent_mask);
notify_cpu_starting(cpu);
complete(&cpu_running);
synchronise_count_slave(cpu);
set_cpu_online(cpu, true);
set_cpu_sibling_map(cpu);
@ -386,6 +383,9 @@ asmlinkage void start_secondary(void)
calculate_cpu_foreign_map();
complete(&cpu_running);
synchronise_count_slave(cpu);
/*
* irq will be enabled in ->smp_finish(), enabling it too early
* is dangerous.

2
arch/mips/mm/uasm-mips.c
View file

@ -48,7 +48,7 @@
#include "uasm.c"
static const struct insn const insn_table[insn_invalid] = {
static const struct insn insn_table[insn_invalid] = {
[insn_addiu] = {M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
[insn_addu] = {M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD},
[insn_and] = {M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD},

7
arch/mips/pci/pci.c
View file

@ -28,16 +28,15 @@ EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
static int __init pcibios_set_cache_line_size(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
unsigned int lsize;
/*
* Set PCI cacheline size to that of the highest level in the
* cache hierarchy.
*/
lsize = c->dcache.linesz;
lsize = c->scache.linesz ? : lsize;
lsize = c->tcache.linesz ? : lsize;
lsize = cpu_dcache_line_size();
lsize = cpu_scache_line_size() ? : lsize;
lsize = cpu_tcache_line_size() ? : lsize;
BUG_ON(!lsize);

6
arch/mips/vdso/gettimeofday.c
View file

@ -35,7 +35,8 @@ static __always_inline long gettimeofday_fallback(struct timeval *_tv,
" syscall\n"
: "=r" (ret), "=r" (error)
: "r" (tv), "r" (tz), "r" (nr)
: "memory");
: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
"$14", "$15", "$24", "$25", "hi", "lo", "memory");
return error ? -ret : ret;
}
@ -55,7 +56,8 @@ static __always_inline long clock_gettime_fallback(clockid_t _clkid,
" syscall\n"
: "=r" (ret), "=r" (error)
: "r" (clkid), "r" (ts), "r" (nr)
: "memory");
: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
"$14", "$15", "$24", "$25", "hi", "lo", "memory");
return error ? -ret : ret;
}