Commit 3d430bdb authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'arc-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC updates from Vineet Gupta:
 "Sorry for the late pull request.  Current stuff was ready for a while
  but I was hoping to squeeze in support for almost ready ARC SDP
  platform (and avoid a 2nd pull request), however it seems there are
  still some loose ends which warrant more time.

   - Platform code reduction/moving-up (TB10X no longer needs any
     callbacks)
   - updated boot printing
   - kgdb update for arc gdb 7.5
   - bug fixes (some marked for stable)
   - more code refactoring/consolidation"

* tag 'arc-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: boot: cpu feature print enhancements
  ARC: boot: consolidate cross-checking of h/w and s/w
  ARC: unbork FPU save/restore
  ARC: remove extraneous __KERNEL__ guards
  ARC: Update order of registers in KGDB to match GDB 7.5
  ARC: Remove unneeded Kconfig entry NO_DMA
  ARC: BUG() dumps stack after @msg (@msg now same as in generic BUG))
  ARC: refactoring: reduce the scope of some local vars
  ARC: remove gcc mpy heuristics
  ARC: RIP @running_on_hw
  ARC: Update comments about uncached address space
  ARC: rename kconfig option for unaligned emulation
  ARC: [nsimosci] Allow "headless" models to boot
  ARC: [arcfpga] Get rid of ARC_BOARD_ANGEL4 and ARC_BOARD_ML509
  ARC: [arcfpga] Remove more dead code
  ARC: [plat*] move code out of .init_machine into common
  ARC: [arcfpga] consolidate machine description, DT
  ARC: Allow SMP kernel to build/boot on UP-only infrastructure
parents dc303408 56372082
......@@ -9,6 +9,7 @@
config ARC
def_bool y
select BUILDTIME_EXTABLE_SORT
select COMMON_CLK
select CLONE_BACKWARDS
# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
select DEVTMPFS if !INITRAMFS_SOURCE=""
......@@ -73,9 +74,6 @@ config STACKTRACE_SUPPORT
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config NO_DMA
def_bool n
source "init/Kconfig"
source "kernel/Kconfig.freezer"
......@@ -354,7 +352,7 @@ config ARC_CURR_IN_REG
kernel mode. This saves memory access for each such access
config ARC_MISALIGN_ACCESS
config ARC_EMUL_UNALIGNED
bool "Emulate unaligned memory access (userspace only)"
select SYSCTL_ARCH_UNALIGN_NO_WARN
select SYSCTL_ARCH_UNALIGN_ALLOW
......
......@@ -25,7 +25,6 @@ ifdef CONFIG_ARC_CURR_IN_REG
LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h
endif
upto_gcc42 := $(call cc-ifversion, -le, 0402, y)
upto_gcc44 := $(call cc-ifversion, -le, 0404, y)
atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y)
atleast_gcc48 := $(call cc-ifversion, -ge, 0408, y)
......@@ -60,25 +59,11 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
ldflags-$(upto_gcc44) += -marclinux
ARC_LIBGCC := -mA7
cflags-$(CONFIG_ARC_HAS_HW_MPY) += -multcost=16
ifndef CONFIG_ARC_HAS_HW_MPY
cflags-y += -mno-mpy
# newlib for ARC700 assumes MPY to be always present, which is generally true
# However, if someone really doesn't want MPY, we need to use the 600 ver
# which coupled with -mno-mpy will use mpy emulation
# With gcc 4.4.7, -mno-mpy is enough to make any other related adjustments,
# e.g. increased cost of MPY. With gcc 4.2.1 this had to be explicitly hinted
ifeq ($(upto_gcc42),y)
ARC_LIBGCC := -marc600
cflags-y += -multcost=30
endif
endif
LIBGCC := $(shell $(CC) $(ARC_LIBGCC) $(cflags-y) --print-libgcc-file-name)
LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
KBUILD_CFLAGS_MODULE += -mlong-calls
......
......@@ -24,11 +24,6 @@ aliases {
serial0 = &arcuart0;
};
memory {
device_type = "memory";
reg = <0x00000000 0x10000000>; /* 256M */
};
fpga {
compatible = "simple-bus";
#address-cells = <1>;
......
......@@ -20,18 +20,13 @@ chosen {
/* this is for console on PGU */
/* bootargs = "console=tty0 consoleblank=0"; */
/* this is for console on serial */
bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=ttyS0,115200n8 consoleblank=0 debug";
bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
};
aliases {
serial0 = &uart0;
};
memory {
device_type = "memory";
reg = <0x80000000 0x10000000>; /* 256M */
};
fpga {
compatible = "simple-bus";
#address-cells = <1>;
......
......@@ -23,7 +23,6 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_FPGA_LEGACY=y
CONFIG_ARC_BOARD_ML509=y
# CONFIG_ARC_HAS_RTSC is not set
CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
CONFIG_PREEMPT=y
......
......@@ -20,7 +20,6 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_FPGA_LEGACY=y
CONFIG_ARC_BOARD_ML509=y
# CONFIG_ARC_HAS_RTSC is not set
CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
CONFIG_PREEMPT=y
......
......@@ -21,7 +21,6 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_FPGA_LEGACY=y
CONFIG_ARC_BOARD_ML509=y
# CONFIG_ARC_IDE is not set
# CONFIG_ARCTANGENT_EMAC is not set
# CONFIG_ARC_HAS_RTSC is not set
......
......@@ -9,19 +9,16 @@
#ifndef _ASM_ARC_ARCREGS_H
#define _ASM_ARC_ARCREGS_H
#ifdef __KERNEL__
/* Build Configuration Registers */
#define ARC_REG_DCCMBASE_BCR 0x61 /* DCCM Base Addr */
#define ARC_REG_CRC_BCR 0x62
#define ARC_REG_DVFB_BCR 0x64
#define ARC_REG_EXTARITH_BCR 0x65
#define ARC_REG_VECBASE_BCR 0x68
#define ARC_REG_PERIBASE_BCR 0x69
#define ARC_REG_FP_BCR 0x6B /* Single-Precision FPU */
#define ARC_REG_DPFP_BCR 0x6C /* Dbl Precision FPU */
#define ARC_REG_FP_BCR 0x6B /* ARCompact: Single-Precision FPU */
#define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */
#define ARC_REG_DCCM_BCR 0x74 /* DCCM Present + SZ */
#define ARC_REG_TIMERS_BCR 0x75
#define ARC_REG_AP_BCR 0x76
#define ARC_REG_ICCM_BCR 0x78
#define ARC_REG_XY_MEM_BCR 0x79
#define ARC_REG_MAC_BCR 0x7a
......@@ -31,6 +28,9 @@
#define ARC_REG_MIXMAX_BCR 0x7e
#define ARC_REG_BARREL_BCR 0x7f
#define ARC_REG_D_UNCACH_BCR 0x6A
#define ARC_REG_BPU_BCR 0xc0
#define ARC_REG_ISA_CFG_BCR 0xc1
#define ARC_REG_SMART_BCR 0xFF
/* status32 Bits Positions */
#define STATUS_AE_BIT 5 /* Exception active */
......@@ -191,14 +191,6 @@
#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
/* These DPFP regs need to be saved/restored across ctx-sw */
struct arc_fpu {
struct {
unsigned int l, h;
} aux_dpfp[2];
};
#endif
/*
***************************************************************
......@@ -212,27 +204,19 @@ struct bcr_identity {
#endif
};
#define EXTN_SWAP_VALID 0x1
#define EXTN_NORM_VALID 0x2
#define EXTN_MINMAX_VALID 0x2
#define EXTN_BARREL_VALID 0x2
struct bcr_extn {
struct bcr_isa {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:20, crc:1, ext_arith:2, mul:2, barrel:2, minmax:2,
norm:2, swap:1;
unsigned int pad1:23, atomic1:1, ver:8;
#else
unsigned int swap:1, norm:2, minmax:2, barrel:2, mul:2, ext_arith:2,
crc:1, pad:20;
unsigned int ver:8, atomic1:1, pad1:23;
#endif
};
/* DSP Options Ref Manual */
struct bcr_extn_mac_mul {
struct bcr_mpy {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:16, type:8, ver:8;
unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8;
#else
unsigned int ver:8, type:8, pad:16;
unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8;
#endif
};
......@@ -251,6 +235,7 @@ struct bcr_perip {
unsigned int pad:8, sz:8, pad2:8, start:8;
#endif
};
struct bcr_iccm {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int base:16, pad:5, sz:3, ver:8;
......@@ -277,8 +262,8 @@ struct bcr_dccm {
#endif
};
/* Both SP and DP FPU BCRs have same format */
struct bcr_fp {
/* ARCompact: Both SP and DP FPU BCRs have same format */
struct bcr_fp_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int fast:1, ver:8;
#else
......@@ -286,6 +271,30 @@ struct bcr_fp {
#endif
};
struct bcr_timer {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad2:15, rtsc:1, pad1:6, t1:1, t0:1, ver:8;
#else
unsigned int ver:8, t0:1, t1:1, pad1:6, rtsc:1, pad2:15;
#endif
};
struct bcr_bpu_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8;
#else
unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19;
#endif
};
struct bcr_generic {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:24, ver:8;
#else
unsigned int ver:8, pad:24;
#endif
};
/*
*******************************************************************
* Generic structures to hold build configuration used at runtime
......@@ -299,6 +308,10 @@ struct cpuinfo_arc_cache {
unsigned int sz_k:8, line_len:8, assoc:4, ver:4, alias:1, vipt:1, pad:6;
};
struct cpuinfo_arc_bpu {
unsigned int ver, full, num_cache, num_pred;
};
struct cpuinfo_arc_ccm {
unsigned int base_addr, sz;
};
......@@ -306,21 +319,25 @@ struct cpuinfo_arc_ccm {
struct cpuinfo_arc {
struct cpuinfo_arc_cache icache, dcache;
struct cpuinfo_arc_mmu mmu;
struct cpuinfo_arc_bpu bpu;
struct bcr_identity core;
unsigned int timers;
struct bcr_isa isa;
struct bcr_timer timers;
unsigned int vec_base;
unsigned int uncached_base;
struct cpuinfo_arc_ccm iccm, dccm;
struct bcr_extn extn;
struct {
unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, pad1:3,
fpu_sp:1, fpu_dp:1, pad2:6,
debug:1, ap:1, smart:1, rtt:1, pad3:4,
pad4:8;
} extn;
struct bcr_mpy extn_mpy;
struct bcr_extn_xymem extn_xymem;
struct bcr_extn_mac_mul extn_mac_mul;
struct bcr_fp fp, dpfp;
};
extern struct cpuinfo_arc cpuinfo_arc700[];
#endif /* __ASEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_ARC_ARCREGS_H */
......@@ -9,8 +9,6 @@
#ifndef _ASM_ARC_ATOMIC_H
#define _ASM_ARC_ATOMIC_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/types.h>
......@@ -170,5 +168,3 @@ ATOMIC_OP(and, &=, and)
#endif
#endif
#endif
......@@ -13,8 +13,6 @@
#error only <linux/bitops.h> can be included directly
#endif
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/types.h>
......@@ -508,6 +506,4 @@ static inline __attribute__ ((const)) int __ffs(unsigned long word)
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif
......@@ -22,9 +22,8 @@ void show_kernel_fault_diag(const char *str, struct pt_regs *regs,
void die(const char *str, struct pt_regs *regs, unsigned long address);
#define BUG() do { \
pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
dump_stack(); \
pr_warn("Kernel BUG in %s: %s: %d!\n", \
__FILE__, __func__, __LINE__); \
} while (0)
#define HAVE_ARCH_BUG
......
......@@ -20,7 +20,7 @@
#define CACHE_LINE_MASK (~(L1_CACHE_BYTES - 1))
/*
* ARC700 doesn't cache any access in top 256M.
* ARC700 doesn't cache any access in top 1G (0xc000_0000 to 0xFFFF_FFFF)
* Ideal for wiring memory mapped peripherals as we don't need to do
* explicit uncached accesses (LD.di/ST.di) hence more portable drivers
*/
......
......@@ -12,8 +12,6 @@
#ifndef _ASM_ARC_CURRENT_H
#define _ASM_ARC_CURRENT_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#ifdef CONFIG_ARC_CURR_IN_REG
......@@ -27,6 +25,4 @@ register struct task_struct *curr_arc asm("r25");
#endif /* ! __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_ARC_CURRENT_H */
......@@ -15,8 +15,6 @@
* -Conditionally disable interrupts (if they are not enabled, don't disable)
*/
#ifdef __KERNEL__
#include <asm/arcregs.h>
/* status32 Reg bits related to Interrupt Handling */
......@@ -169,6 +167,4 @@ static inline int arch_irqs_disabled(void)
#endif /* __ASSEMBLY__ */
#endif /* KERNEL */
#endif
......@@ -19,7 +19,7 @@
* register API yet */
#undef DBG_MAX_REG_NUM
#define GDB_MAX_REGS 39
#define GDB_MAX_REGS 87
#define BREAK_INSTR_SIZE 2
#define CACHE_FLUSH_IS_SAFE 1
......@@ -33,23 +33,27 @@ static inline void arch_kgdb_breakpoint(void)
extern void kgdb_trap(struct pt_regs *regs);
enum arc700_linux_regnums {
/* This is the numbering of registers according to the GDB. See GDB's
* arc-tdep.h for details.
*
* Registers are ordered for GDB 7.5. It is incompatible with GDB 6.8. */
enum arc_linux_regnums {
_R0 = 0,
_R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13,
_R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24,
_R25, _R26,
_BTA = 27,
_LP_START = 28,
_LP_END = 29,
_LP_COUNT = 30,
_STATUS32 = 31,
_BLINK = 32,
_FP = 33,
__SP = 34,
_EFA = 35,
_RET = 36,
_ORIG_R8 = 37,
_STOP_PC = 38
_FP = 27,
__SP = 28,
_R30 = 30,
_BLINK = 31,
_LP_COUNT = 60,
_STOP_PC = 64,
_RET = 64,
_LP_START = 65,
_LP_END = 66,
_STATUS32 = 67,
_ECR = 76,
_BTA = 82,
};
#else
......
......@@ -14,12 +14,19 @@
#ifndef __ASM_ARC_PROCESSOR_H
#define __ASM_ARC_PROCESSOR_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <asm/ptrace.h>
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
/* These DPFP regs need to be saved/restored across ctx-sw */
struct arc_fpu {
struct {
unsigned int l, h;
} aux_dpfp[2];
};
#endif
/* Arch specific stuff which needs to be saved per task.
* However these items are not so important so as to earn a place in
* struct thread_info
......@@ -128,6 +135,4 @@ extern unsigned int get_wchan(struct task_struct *p);
*/
#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
#endif /* __KERNEL__ */
#endif /* __ASM_ARC_PROCESSOR_H */
......@@ -29,7 +29,6 @@ struct cpuinfo_data {
};
extern int root_mountflags, end_mem;
extern int running_on_hw;
void setup_processor(void);
void __init setup_arch_memory(void);
......
......@@ -59,7 +59,15 @@ struct plat_smp_ops {
/* TBD: stop exporting it for direct population by platform */
extern struct plat_smp_ops plat_smp_ops;
#endif /* CONFIG_SMP */
#else /* CONFIG_SMP */
static inline void smp_init_cpus(void) {}
static inline const char *arc_platform_smp_cpuinfo(void)
{
return "";
}
#endif /* !CONFIG_SMP */
/*
* ARC700 doesn't support atomic Read-Modify-Write ops.
......
......@@ -17,8 +17,6 @@
#include <linux/types.h>
#ifdef __KERNEL__
#define __HAVE_ARCH_MEMSET
#define __HAVE_ARCH_MEMCPY
#define __HAVE_ARCH_MEMCMP
......@@ -36,5 +34,4 @@ extern char *strcpy(char *dest, const char *src);
extern int strcmp(const char *cs, const char *ct);
extern __kernel_size_t strlen(const char *);
#endif /* __KERNEL__ */
#endif /* _ASM_ARC_STRING_H */
......@@ -9,8 +9,6 @@
#ifndef _ASM_ARC_SYSCALLS_H
#define _ASM_ARC_SYSCALLS_H 1
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <linux/linkage.h>
#include <linux/types.h>
......@@ -22,6 +20,4 @@ int sys_arc_gettls(void);
#include <asm-generic/syscalls.h>
#endif /* __KERNEL__ */
#endif
......@@ -16,8 +16,6 @@
#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H
#ifdef __KERNEL__
#include <asm/page.h>
#ifdef CONFIG_16KSTACKS
......@@ -114,6 +112,4 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
* syscall, so all that reamins to be tested is _TIF_WORK_MASK
*/
#endif /* __KERNEL__ */
#endif /* _ASM_THREAD_INFO_H */
......@@ -14,7 +14,7 @@
#include <asm-generic/unaligned.h>
#include <asm/ptrace.h>
#ifdef CONFIG_ARC_MISALIGN_ACCESS
#ifdef CONFIG_ARC_EMUL_UNALIGNED
int misaligned_fixup(unsigned long address, struct pt_regs *regs,
struct callee_regs *cregs);
#else
......
......@@ -16,7 +16,7 @@ obj-$(CONFIG_MODULES) += arcksyms.o module.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_ARC_DW2_UNWIND) += unwind.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_ARC_MISALIGN_ACCESS) += unaligned.o
obj-$(CONFIG_ARC_EMUL_UNALIGNED) += unaligned.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_ARC_METAWARE_HLINK) += arc_hostlink.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o
......
......@@ -15,7 +15,7 @@
#include <linux/uaccess.h>
#include <asm/disasm.h>
#if defined(CONFIG_KGDB) || defined(CONFIG_ARC_MISALIGN_ACCESS) || \
#if defined(CONFIG_KGDB) || defined(CONFIG_ARC_EMUL_UNALIGNED) || \
defined(CONFIG_KPROBES)
/* disasm_instr: Analyses instruction at addr, stores
......@@ -535,4 +535,4 @@ int __kprobes disasm_next_pc(unsigned long pc, struct pt_regs *regs,
return instr.is_branch;
}
#endif /* CONFIG_KGDB || CONFIG_ARC_MISALIGN_ACCESS || CONFIG_KPROBES */
#endif /* CONFIG_KGDB || CONFIG_ARC_EMUL_UNALIGNED || CONFIG_KPROBES */
......@@ -91,16 +91,6 @@ stext:
st r0, [@uboot_tag]
st r2, [@uboot_arg]
; Identify if running on ISS vs Silicon
; IDENTITY Reg [ 3 2 1 0 ]
; (chip-id) ^^^^^ ==> 0xffff for ISS
lr r0, [identity]
lsr r3, r0, 16
cmp r3, 0xffff
mov.z r4, 0
mov.nz r4, 1
st r4, [@running_on_hw]
; setup "current" tsk and optionally cache it in dedicated r25
mov r9, @init_task
SET_CURR_TASK_ON_CPU r9, r0 ; r9 = tsk, r0 = scratch
......
......@@ -244,25 +244,23 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
pr_err("This core does not have performance counters!\n");
return -ENODEV;
}
BUG_ON(pct_bcr.c > ARC_PMU_MAX_HWEVENTS);
arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu),
GFP_KERNEL);
READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
if (!cc_bcr.v) {
pr_err("Performance counters exist, but no countable conditions?\n");
return -ENODEV;
}
arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu), GFP_KERNEL);
if (!arc_pmu)
return -ENOMEM;
arc_pmu->n_counters = pct_bcr.c;
BUG_ON(arc_pmu->n_counters > ARC_PMU_MAX_HWEVENTS);
arc_pmu->counter_size = 32 + (pct_bcr.s << 4);
pr_info("ARC PMU found with %d counters of size %d bits\n",
arc_pmu->n_counters, arc_pmu->counter_size);
READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
if (!cc_bcr.v)
pr_err("Strange! Performance counters exist, but no countable conditions?\n");
pr_info("ARC PMU has %d countable conditions\n", cc_bcr.c);
pr_info("ARC perf\t: %d counters (%d bits), %d countable conditions\n",
arc_pmu->n_counters, arc_pmu->counter_size, cc_bcr.c);
cc_name.str[8] = 0;
for (i = 0; i < PERF_COUNT_HW_MAX; i++)
......
This diff is collapsed.
......@@ -101,7 +101,7 @@ void __weak arc_platform_smp_wait_to_boot(int cpu)
const char *arc_platform_smp_cpuinfo(void)
{
return plat_smp_ops.info;
return plat_smp_ops.info ? : "";
}
/*
......
......@@ -530,16 +530,9 @@ EXPORT_SYMBOL(dma_cache_wback);
*/
void flush_icache_range(unsigned long kstart, unsigned long kend)
{
unsigned int tot_sz, off, sz;
unsigned long phy, pfn;
/* printk("Kernel Cache Cohenercy: %lx to %lx\n",kstart, kend); */
unsigned int tot_sz;
/* This is not the right API for user virtual address */
if (kstart < TASK_SIZE) {
BUG_ON("Flush icache range for user virtual addr space");
return;
}
WARN(kstart < TASK_SIZE, "%s() can't handle user vaddr", __func__);
/* Shortcut for bigger flush ranges.
* Here we don't care if this was kernel virtual or phy addr
......@@ -572,6 +565,9 @@ void flush_icache_range(unsigned long kstart, unsigned long kend)
* straddles across 2 virtual pages and hence need for loop
*/
while (tot_sz > 0) {
unsigned int off, sz;
unsigned long phy, pfn;
off = kstart % PAGE_SIZE;
pfn = vmalloc_to_pfn((void *)kstart);
phy = (pfn << PAGE_SHIFT) + off;
......
......@@ -609,14 +609,12 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
int n = 0;
struct cpuinfo_arc_mmu *p_mmu = &cpuinfo_arc700[cpu_id].mmu;
n += scnprintf(buf + n, len - n, "ARC700 MMU [v%x]\t: %dk PAGE, ",
p_mmu->ver, TO_KB(p_mmu->pg_sz));
n += scnprintf(buf + n, len - n,
"J-TLB %d (%dx%d), uDTLB %d, uITLB %d, %s\n",
"MMU [v%x]\t: %dk PAGE, JTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
p_mmu->ver, TO_KB(p_mmu->pg_sz),
p_mmu->num_tlb, p_mmu->sets, p_mmu->ways,
p_mmu->u_dtlb, p_mmu->u_itlb,
IS_ENABLED(CONFIG_ARC_MMU_SASID) ? "SASID" : "");
IS_ENABLED(CONFIG_ARC_MMU_SASID) ? ",SASID" : "");
return buf;
}
......
......@@ -8,7 +8,7 @@
menuconfig ARC_PLAT_FPGA_LEGACY
bool "\"Legacy\" ARC FPGA dev Boards"
select ISS_SMP_EXTN if SMP
select ARC_HAS_COH_CACHES if SMP
help
Support for ARC development boards, provided by Synopsys.
These are based on FPGA or ISS. e.g.
......@@ -18,17 +18,6 @@ menuconfig ARC_PLAT_FPGA_LEGACY
if ARC_PLAT_FPGA_LEGACY
config ARC_BOARD_ANGEL4
bool "ARC Angel4"
default y
help
ARC Angel4 FPGA Ref Platform (Xilinx Virtex Based)
config ARC_BOARD_ML509
bool "ML509"
help
ARC ML509 FPGA Ref Platform (Xilinx Virtex-5 Based)
config ISS_SMP_EXTN
bool "ARC SMP Extensions (ISS Models only)"
default n
......
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*
* This program 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.
*
* vineetg: Feb 2009
* -For AA4 board, IRQ assignments to peripherals
*/
#ifndef __PLAT_IRQ_H
#define __PLAT_IRQ_H
#define UART0_IRQ 5
#define UART1_IRQ 10
#define UART2_IRQ 11
#define IDE_IRQ 13
#define PCI_IRQ 14
#define PS2_IRQ 15
#ifdef CONFIG_SMP
#define IDU_INTERRUPT_0 16
#endif
#endif
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*
* This program 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.
*
* vineetg: Feb 2009
* -For AA4 board, System Memory Map for Peripherals etc
*/
#ifndef __PLAT_MEMMAP_H
#define __PLAT_MEMMAP_H
#define UART0_BASE 0xC0FC1000
#define UART1_BASE 0xC0FC1100
#define IDE_CONTROLLER_BASE 0xC0FC9000
#define AHB_PCI_HOST_BRG_BASE 0xC0FD0000
#define PGU_BASEADDR 0xC0FC8000
#define VLCK_ADDR 0xC0FCF028
#define BVCI_LAT_UNIT_BASE 0xC0FED000
#define PS2_BASE_ADDR 0xC0FCC000
#endif
......@@ -8,37 +8,9 @@
* published by the Free Software Foundation.
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/console.h>
#include <linux/of_platform.h>
#include <asm/setup.h>
#include <asm/clk.h>
#include <asm/mach_desc.h>
#include <plat/memmap.h>
#include <plat/smp.h>
#include <plat/irq.h>
static void __init plat_fpga_early_init(void)
{
pr_info("[plat-arcfpga]: registering early dev resources\n");
#ifdef CONFIG_ISS_SMP_EXTN
iss_model_init_early_smp();
#endif
}
static void __init plat_fpga_populate_dev(void)
{
/*
* Traverses flattened DeviceTree - registering platform devices
* (if any) complete with their resources
*/
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
/*----------------------- Machine Descriptions ------------------------------
*
......@@ -48,41 +20,26 @@ static void __init plat_fpga_populate_dev(void)
* callback set, by matching the DT compatible name.
*/
static const char *aa4_compat[] __initconst = {
static const char *legacy_fpga_compat[] __initconst = {
"snps,arc-angel4",
NULL,
};
MACHINE_START(ANGEL4, "angel4")
.dt_compat = aa4_compat,
.init_early = plat_fpga_early_init,
.init_machine = plat_fpga_populate_dev,
#ifdef CONFIG_ISS_SMP_EXTN
.init_smp = iss_model_init_smp,
#endif
MACHINE_END
static const char *ml509_compat[] __initconst = {
"snps,arc-ml509",
NULL,
};
MACHINE_START(ML509, "ml509")
.dt_compat = ml509_compat,
.init_early = plat_fpga_early_init,
.init_machine = plat_fpga_populate_dev,
#ifdef CONFIG_SMP
MACHINE_START(LEGACY_FPGA, "legacy_fpga")
.dt_compat = legacy_fpga_compat,
#ifdef CONFIG_ISS_SMP_EXTN
.init_early = iss_model_init_early_smp,
.init_smp = iss_model_init_smp,
#endif
MACHINE_END
static const char *nsimosci_compat[] __initconst = {
static const char *simulation_compat[] __initconst = {
"snps,nsim",
"snps,nsimosci",
NULL,
};
MACHINE_START(NSIMOSCI, "nsimosci")
.dt_compat = nsimosci_compat,
.init_early = NULL,
.init_machine = plat_fpga_populate_dev,
MACHINE_START(SIMULATION, "simulation")
.dt_compat = simulation_compat,
MACHINE_END
......@@ -13,9 +13,10 @@
#include <linux/smp.h>
#include <linux/irq.h>
#include <plat/irq.h>
#include <plat/smp.h>
#define IDU_INTERRUPT_0 16
static char smp_cpuinfo_buf[128];
/*
......
......@@ -18,7 +18,6 @@
menuconfig ARC_PLAT_TB10X
bool "Abilis TB10x"
select COMMON_CLK
select PINCTRL
select PINCTRL_TB10X
select PINMUX
......
......@@ -19,21 +19,9 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/clk-provider.h>
#include <linux/pinctrl/consumer.h>
#include <asm/mach_desc.h>
static void __init tb10x_platform_init(void)
{
of_clk_init(NULL);
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char *tb10x_compat[] __initdata = {
"abilis,arc-tb10x",
NULL,
......@@ -41,5 +29,4 @@ static const char *tb10x_compat[] __initdata = {
MACHINE_START(TB10x, "tb10x")
.dt_compat = tb10x_compat,
.init_machine = tb10x_platform_init,
MACHINE_END
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment