forked from Minki/linux
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
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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
This commit is contained in:
Linus Torvalds
commit
3d430bdb74
@ -9,6 +9,7 @@
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config ARC
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def_bool y
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select BUILDTIME_EXTABLE_SORT
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select COMMON_CLK
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select CLONE_BACKWARDS
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# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
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select DEVTMPFS if !INITRAMFS_SOURCE=""
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@ -73,9 +74,6 @@ config STACKTRACE_SUPPORT
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config HAVE_LATENCYTOP_SUPPORT
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def_bool y
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config NO_DMA
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def_bool n
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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@ -354,7 +352,7 @@ config ARC_CURR_IN_REG
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kernel mode. This saves memory access for each such access
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config ARC_MISALIGN_ACCESS
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config ARC_EMUL_UNALIGNED
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bool "Emulate unaligned memory access (userspace only)"
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select SYSCTL_ARCH_UNALIGN_NO_WARN
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select SYSCTL_ARCH_UNALIGN_ALLOW
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@ -25,7 +25,6 @@ ifdef CONFIG_ARC_CURR_IN_REG
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LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h
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endif
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upto_gcc42 := $(call cc-ifversion, -le, 0402, y)
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upto_gcc44 := $(call cc-ifversion, -le, 0404, y)
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atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y)
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atleast_gcc48 := $(call cc-ifversion, -ge, 0408, y)
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@ -60,25 +59,11 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
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# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
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ldflags-$(upto_gcc44) += -marclinux
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ARC_LIBGCC := -mA7
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cflags-$(CONFIG_ARC_HAS_HW_MPY) += -multcost=16
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ifndef CONFIG_ARC_HAS_HW_MPY
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cflags-y += -mno-mpy
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# newlib for ARC700 assumes MPY to be always present, which is generally true
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# However, if someone really doesn't want MPY, we need to use the 600 ver
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# which coupled with -mno-mpy will use mpy emulation
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# With gcc 4.4.7, -mno-mpy is enough to make any other related adjustments,
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# e.g. increased cost of MPY. With gcc 4.2.1 this had to be explicitly hinted
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ifeq ($(upto_gcc42),y)
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ARC_LIBGCC := -marc600
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cflags-y += -multcost=30
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endif
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endif
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LIBGCC := $(shell $(CC) $(ARC_LIBGCC) $(cflags-y) --print-libgcc-file-name)
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LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
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# Modules with short calls might break for calls into builtin-kernel
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KBUILD_CFLAGS_MODULE += -mlong-calls
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@ -24,11 +24,6 @@
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serial0 = &arcuart0;
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};
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memory {
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device_type = "memory";
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reg = <0x00000000 0x10000000>; /* 256M */
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};
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fpga {
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compatible = "simple-bus";
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#address-cells = <1>;
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@ -20,18 +20,13 @@
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/* this is for console on PGU */
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/* bootargs = "console=tty0 consoleblank=0"; */
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/* this is for console on serial */
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bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=ttyS0,115200n8 consoleblank=0 debug";
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bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
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};
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aliases {
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serial0 = &uart0;
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};
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memory {
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device_type = "memory";
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reg = <0x80000000 0x10000000>; /* 256M */
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};
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fpga {
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compatible = "simple-bus";
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#address-cells = <1>;
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@ -23,7 +23,6 @@ CONFIG_MODULES=y
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# CONFIG_IOSCHED_DEADLINE is not set
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# CONFIG_IOSCHED_CFQ is not set
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CONFIG_ARC_PLAT_FPGA_LEGACY=y
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CONFIG_ARC_BOARD_ML509=y
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# CONFIG_ARC_HAS_RTSC is not set
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CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
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CONFIG_PREEMPT=y
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@ -20,7 +20,6 @@ CONFIG_MODULES=y
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# CONFIG_IOSCHED_DEADLINE is not set
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# CONFIG_IOSCHED_CFQ is not set
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CONFIG_ARC_PLAT_FPGA_LEGACY=y
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CONFIG_ARC_BOARD_ML509=y
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# CONFIG_ARC_HAS_RTSC is not set
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CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
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CONFIG_PREEMPT=y
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@ -21,7 +21,6 @@ CONFIG_MODULES=y
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# CONFIG_IOSCHED_DEADLINE is not set
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# CONFIG_IOSCHED_CFQ is not set
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CONFIG_ARC_PLAT_FPGA_LEGACY=y
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CONFIG_ARC_BOARD_ML509=y
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# CONFIG_ARC_IDE is not set
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# CONFIG_ARCTANGENT_EMAC is not set
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# CONFIG_ARC_HAS_RTSC is not set
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@ -9,19 +9,16 @@
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#ifndef _ASM_ARC_ARCREGS_H
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#define _ASM_ARC_ARCREGS_H
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#ifdef __KERNEL__
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/* Build Configuration Registers */
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#define ARC_REG_DCCMBASE_BCR 0x61 /* DCCM Base Addr */
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#define ARC_REG_CRC_BCR 0x62
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#define ARC_REG_DVFB_BCR 0x64
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#define ARC_REG_EXTARITH_BCR 0x65
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#define ARC_REG_VECBASE_BCR 0x68
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#define ARC_REG_PERIBASE_BCR 0x69
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#define ARC_REG_FP_BCR 0x6B /* Single-Precision FPU */
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#define ARC_REG_DPFP_BCR 0x6C /* Dbl Precision FPU */
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#define ARC_REG_FP_BCR 0x6B /* ARCompact: Single-Precision FPU */
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#define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */
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#define ARC_REG_DCCM_BCR 0x74 /* DCCM Present + SZ */
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#define ARC_REG_TIMERS_BCR 0x75
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#define ARC_REG_AP_BCR 0x76
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#define ARC_REG_ICCM_BCR 0x78
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#define ARC_REG_XY_MEM_BCR 0x79
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#define ARC_REG_MAC_BCR 0x7a
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@ -31,6 +28,9 @@
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#define ARC_REG_MIXMAX_BCR 0x7e
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#define ARC_REG_BARREL_BCR 0x7f
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#define ARC_REG_D_UNCACH_BCR 0x6A
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#define ARC_REG_BPU_BCR 0xc0
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#define ARC_REG_ISA_CFG_BCR 0xc1
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#define ARC_REG_SMART_BCR 0xFF
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/* status32 Bits Positions */
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#define STATUS_AE_BIT 5 /* Exception active */
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@ -191,14 +191,6 @@
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#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
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#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)
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#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
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/* These DPFP regs need to be saved/restored across ctx-sw */
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struct arc_fpu {
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struct {
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unsigned int l, h;
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} aux_dpfp[2];
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};
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#endif
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/*
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***************************************************************
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@ -212,27 +204,19 @@ struct bcr_identity {
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#endif
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};
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#define EXTN_SWAP_VALID 0x1
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#define EXTN_NORM_VALID 0x2
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#define EXTN_MINMAX_VALID 0x2
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#define EXTN_BARREL_VALID 0x2
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struct bcr_extn {
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struct bcr_isa {
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#ifdef CONFIG_CPU_BIG_ENDIAN
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unsigned int pad:20, crc:1, ext_arith:2, mul:2, barrel:2, minmax:2,
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norm:2, swap:1;
|
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unsigned int pad1:23, atomic1:1, ver:8;
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#else
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unsigned int swap:1, norm:2, minmax:2, barrel:2, mul:2, ext_arith:2,
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crc:1, pad:20;
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unsigned int ver:8, atomic1:1, pad1:23;
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#endif
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};
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/* DSP Options Ref Manual */
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struct bcr_extn_mac_mul {
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struct bcr_mpy {
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#ifdef CONFIG_CPU_BIG_ENDIAN
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unsigned int pad:16, type:8, ver:8;
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unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8;
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#else
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unsigned int ver:8, type:8, pad:16;
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unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8;
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#endif
|
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};
|
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|
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@ -251,6 +235,7 @@ struct bcr_perip {
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unsigned int pad:8, sz:8, pad2:8, start:8;
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#endif
|
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};
|
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|
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struct bcr_iccm {
|
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#ifdef CONFIG_CPU_BIG_ENDIAN
|
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unsigned int base:16, pad:5, sz:3, ver:8;
|
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@ -277,8 +262,8 @@ struct bcr_dccm {
|
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#endif
|
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};
|
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|
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/* Both SP and DP FPU BCRs have same format */
|
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struct bcr_fp {
|
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/* ARCompact: Both SP and DP FPU BCRs have same format */
|
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struct bcr_fp_arcompact {
|
||||
#ifdef CONFIG_CPU_BIG_ENDIAN
|
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unsigned int fast:1, ver:8;
|
||||
#else
|
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@ -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
|
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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
|
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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
|
||||
|
||||
@ -21,10 +21,9 @@ void show_kernel_fault_diag(const char *str, struct pt_regs *regs,
|
||||
unsigned long address);
|
||||
void die(const char *str, struct pt_regs *regs, unsigned long address);
|
||||
|
||||
#define BUG() do { \
|
||||
dump_stack(); \
|
||||
pr_warn("Kernel BUG in %s: %s: %d!\n", \
|
||||
__FILE__, __func__, __LINE__); \
|
||||
#define BUG() do { \
|
||||
pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
|
||||
dump_stack(); \
|
||||
} 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++)
|
||||
|
||||
@ -13,7 +13,9 @@
|
||||
#include <linux/console.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/cpu.h>
|
||||
#include <linux/clk-provider.h>
|
||||
#include <linux/of_fdt.h>
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/cache.h>
|
||||
#include <asm/sections.h>
|
||||
#include <asm/arcregs.h>
|
||||
@ -24,11 +26,10 @@
|
||||
#include <asm/unwind.h>
|
||||
#include <asm/clk.h>
|
||||
#include <asm/mach_desc.h>
|
||||
#include <asm/smp.h>
|
||||
|
||||
#define FIX_PTR(x) __asm__ __volatile__(";" : "+r"(x))
|
||||
|
||||
int running_on_hw = 1; /* vs. on ISS */
|
||||
|
||||
/* Part of U-boot ABI: see head.S */
|
||||
int __initdata uboot_tag;
|
||||
char __initdata *uboot_arg;
|
||||
@ -42,26 +43,26 @@ struct cpuinfo_arc cpuinfo_arc700[NR_CPUS];
|
||||
static void read_arc_build_cfg_regs(void)
|
||||
{
|
||||
struct bcr_perip uncached_space;
|
||||
struct bcr_generic bcr;
|
||||
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
|
||||
FIX_PTR(cpu);
|
||||
|
||||
READ_BCR(AUX_IDENTITY, cpu->core);
|
||||
READ_BCR(ARC_REG_ISA_CFG_BCR, cpu->isa);
|
||||
|
||||
cpu->timers = read_aux_reg(ARC_REG_TIMERS_BCR);
|
||||
READ_BCR(ARC_REG_TIMERS_BCR, cpu->timers);
|
||||
cpu->vec_base = read_aux_reg(AUX_INTR_VEC_BASE);
|
||||
|
||||
READ_BCR(ARC_REG_D_UNCACH_BCR, uncached_space);
|
||||
cpu->uncached_base = uncached_space.start << 24;
|
||||
|
||||
cpu->extn.mul = read_aux_reg(ARC_REG_MUL_BCR);
|
||||
cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR);
|
||||
cpu->extn.norm = read_aux_reg(ARC_REG_NORM_BCR);
|
||||
cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR);
|
||||
cpu->extn.barrel = read_aux_reg(ARC_REG_BARREL_BCR);
|
||||
READ_BCR(ARC_REG_MAC_BCR, cpu->extn_mac_mul);
|
||||
READ_BCR(ARC_REG_MUL_BCR, cpu->extn_mpy);
|
||||
|
||||
cpu->extn.ext_arith = read_aux_reg(ARC_REG_EXTARITH_BCR);
|
||||
cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR);
|
||||
cpu->extn.norm = read_aux_reg(ARC_REG_NORM_BCR) > 1 ? 1 : 0; /* 2,3 */
|
||||
cpu->extn.barrel = read_aux_reg(ARC_REG_BARREL_BCR) > 1 ? 1 : 0; /* 2,3 */
|
||||
cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR) ? 1 : 0; /* 1,3 */
|
||||
cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR) ? 1 : 0;
|
||||
cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR) > 1 ? 1 : 0; /* 2 */
|
||||
|
||||
/* Note that we read the CCM BCRs independent of kernel config
|
||||
* This is to catch the cases where user doesn't know that
|
||||
@ -95,43 +96,76 @@ static void read_arc_build_cfg_regs(void)
|
||||
read_decode_mmu_bcr();
|
||||
read_decode_cache_bcr();
|
||||
|
||||
READ_BCR(ARC_REG_FP_BCR, cpu->fp);
|
||||
READ_BCR(ARC_REG_DPFP_BCR, cpu->dpfp);
|
||||
{
|
||||
struct bcr_fp_arcompact sp, dp;
|
||||
struct bcr_bpu_arcompact bpu;
|
||||
|
||||
READ_BCR(ARC_REG_FP_BCR, sp);
|
||||
READ_BCR(ARC_REG_DPFP_BCR, dp);
|
||||
cpu->extn.fpu_sp = sp.ver ? 1 : 0;
|
||||
cpu->extn.fpu_dp = dp.ver ? 1 : 0;
|
||||
|
||||
READ_BCR(ARC_REG_BPU_BCR, bpu);
|
||||
cpu->bpu.ver = bpu.ver;
|
||||
cpu->bpu.full = bpu.fam ? 1 : 0;
|
||||
if (bpu.ent) {
|
||||
cpu->bpu.num_cache = 256 << (bpu.ent - 1);
|
||||
cpu->bpu.num_pred = 256 << (bpu.ent - 1);
|
||||
}
|
||||
}
|
||||
|
||||
READ_BCR(ARC_REG_AP_BCR, bcr);
|
||||
cpu->extn.ap = bcr.ver ? 1 : 0;
|
||||
|
||||
READ_BCR(ARC_REG_SMART_BCR, bcr);
|
||||
cpu->extn.smart = bcr.ver ? 1 : 0;
|
||||
|
||||
cpu->extn.debug = cpu->extn.ap | cpu->extn.smart;
|
||||
}
|
||||
|
||||
static const struct cpuinfo_data arc_cpu_tbl[] = {
|
||||
{ {0x10, "ARCTangent A5"}, 0x1F},
|
||||
{ {0x20, "ARC 600" }, 0x2F},
|
||||
{ {0x30, "ARC 700" }, 0x33},
|
||||
{ {0x34, "ARC 700 R4.10"}, 0x34},
|
||||
{ {0x35, "ARC 700 R4.11"}, 0x35},
|
||||
{ {0x00, NULL } }
|
||||
};
|
||||
|
||||
#define IS_AVAIL1(v, str) ((v) ? str : "")
|
||||
#define IS_USED(cfg) (IS_ENABLED(cfg) ? "" : "(not used) ")
|
||||
#define IS_AVAIL2(v, str, cfg) IS_AVAIL1(v, str), IS_AVAIL1(v, IS_USED(cfg))
|
||||
|
||||
static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
|
||||
{
|
||||
int n = 0;
|
||||
struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id];
|
||||
struct bcr_identity *core = &cpu->core;
|
||||
const struct cpuinfo_data *tbl;
|
||||
int be = 0;
|
||||
#ifdef CONFIG_CPU_BIG_ENDIAN
|
||||
be = 1;
|
||||
#endif
|
||||
char *isa_nm;
|
||||
int i, be, atomic;
|
||||
int n = 0;
|
||||
|
||||
FIX_PTR(cpu);
|
||||
|
||||
{
|
||||
isa_nm = "ARCompact";
|
||||
be = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN);
|
||||
|
||||
atomic = cpu->isa.atomic1;
|
||||
if (!cpu->isa.ver) /* ISA BCR absent, use Kconfig info */
|
||||
atomic = IS_ENABLED(CONFIG_ARC_HAS_LLSC);
|
||||
}
|
||||
|
||||
n += scnprintf(buf + n, len - n,
|
||||
"\nARC IDENTITY\t: Family [%#02x]"
|
||||
" Cpu-id [%#02x] Chip-id [%#4x]\n",
|
||||
core->family, core->cpu_id,
|
||||
core->chip_id);
|
||||
"\nIDENTITY\t: ARCVER [%#02x] ARCNUM [%#02x] CHIPID [%#4x]\n",
|
||||
core->family, core->cpu_id, core->chip_id);
|
||||
|
||||
for (tbl = &arc_cpu_tbl[0]; tbl->info.id != 0; tbl++) {
|
||||
if ((core->family >= tbl->info.id) &&
|
||||
(core->family <= tbl->up_range)) {
|
||||
n += scnprintf(buf + n, len - n,
|
||||
"processor\t: %s %s\n",
|
||||
tbl->info.str,
|
||||
be ? "[Big Endian]" : "");
|
||||
"processor [%d]\t: %s (%s ISA) %s\n",
|
||||
cpu_id, tbl->info.str, isa_nm,
|
||||
IS_AVAIL1(be, "[Big-Endian]"));
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -143,102 +177,82 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
|
||||
(unsigned int)(arc_get_core_freq() / 1000000),
|
||||
(unsigned int)(arc_get_core_freq() / 10000) % 100);
|
||||
|
||||
n += scnprintf(buf + n, len - n, "Timers\t\t: %s %s\n",
|
||||
(cpu->timers & 0x200) ? "TIMER1" : "",
|
||||
(cpu->timers & 0x100) ? "TIMER0" : "");
|
||||
n += scnprintf(buf + n, len - n, "Timers\t\t: %s%s%s%s\nISA Extn\t: ",
|
||||
IS_AVAIL1(cpu->timers.t0, "Timer0 "),
|
||||
IS_AVAIL1(cpu->timers.t1, "Timer1 "),
|
||||
IS_AVAIL2(cpu->timers.rtsc, "64-bit RTSC ", CONFIG_ARC_HAS_RTSC));
|
||||
|
||||
n += scnprintf(buf + n, len - n, "Vect Tbl Base\t: %#x\n",
|
||||
cpu->vec_base);
|
||||
n += i = scnprintf(buf + n, len - n, "%s%s",
|
||||
IS_AVAIL2(atomic, "atomic ", CONFIG_ARC_HAS_LLSC));
|
||||
|
||||
n += scnprintf(buf + n, len - n, "UNCACHED Base\t: %#x\n",
|
||||
cpu->uncached_base);
|
||||
if (i)
|
||||
n += scnprintf(buf + n, len - n, "\n\t\t: ");
|
||||
|
||||
n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n",
|
||||
IS_AVAIL1(cpu->extn_mpy.ver, "mpy "),
|
||||
IS_AVAIL1(cpu->extn.norm, "norm "),
|
||||
IS_AVAIL1(cpu->extn.barrel, "barrel-shift "),
|
||||
IS_AVAIL1(cpu->extn.swap, "swap "),
|
||||
IS_AVAIL1(cpu->extn.minmax, "minmax "),
|
||||
IS_AVAIL1(cpu->extn.crc, "crc "),
|
||||
IS_AVAIL2(1, "swape", CONFIG_ARC_HAS_SWAPE));
|
||||
|
||||
if (cpu->bpu.ver)
|
||||
n += scnprintf(buf + n, len - n,
|
||||
"BPU\t\t: %s%s match, cache:%d, Predict Table:%d\n",
|
||||
IS_AVAIL1(cpu->bpu.full, "full"),
|
||||
IS_AVAIL1(!cpu->bpu.full, "partial"),
|
||||
cpu->bpu.num_cache, cpu->bpu.num_pred);
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
static const struct id_to_str mul_type_nm[] = {
|
||||
{ 0x0, "N/A"},
|
||||
{ 0x1, "32x32 (spl Result Reg)" },
|
||||
{ 0x2, "32x32 (ANY Result Reg)" }
|
||||
};
|
||||
|
||||
static const struct id_to_str mac_mul_nm[] = {
|
||||
{0x0, "N/A"},
|
||||
{0x1, "N/A"},
|
||||
{0x2, "Dual 16 x 16"},
|
||||
{0x3, "N/A"},
|
||||
{0x4, "32x16"},
|
||||
{0x5, "N/A"},
|
||||
{0x6, "Dual 16x16 and 32x16"}
|
||||
};
|
||||
|
||||
static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
|
||||
{
|
||||
int n = 0;
|
||||
struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id];
|
||||
|
||||
FIX_PTR(cpu);
|
||||
#define IS_AVAIL1(var, str) ((var) ? str : "")
|
||||
#define IS_AVAIL2(var, str) ((var == 0x2) ? str : "")
|
||||
#define IS_USED(cfg) (IS_ENABLED(cfg) ? "(in-use)" : "(not used)")
|
||||
|
||||
n += scnprintf(buf + n, len - n,
|
||||
"Extn [700-Base]\t: %s %s %s %s %s %s\n",
|
||||
IS_AVAIL2(cpu->extn.norm, "norm,"),
|
||||
IS_AVAIL2(cpu->extn.barrel, "barrel-shift,"),
|
||||
IS_AVAIL1(cpu->extn.swap, "swap,"),
|
||||
IS_AVAIL2(cpu->extn.minmax, "minmax,"),
|
||||
IS_AVAIL1(cpu->extn.crc, "crc,"),
|
||||
IS_AVAIL2(cpu->extn.ext_arith, "ext-arith"));
|
||||
"Vector Table\t: %#x\nUncached Base\t: %#x\n",
|
||||
cpu->vec_base, cpu->uncached_base);
|
||||
|
||||
n += scnprintf(buf + n, len - n, "Extn [700-MPY]\t: %s",
|
||||
mul_type_nm[cpu->extn.mul].str);
|
||||
if (cpu->extn.fpu_sp || cpu->extn.fpu_dp)
|
||||
n += scnprintf(buf + n, len - n, "FPU\t\t: %s%s\n",
|
||||
IS_AVAIL1(cpu->extn.fpu_sp, "SP "),
|
||||
IS_AVAIL1(cpu->extn.fpu_dp, "DP "));
|
||||
|
||||
n += scnprintf(buf + n, len - n, " MAC MPY: %s\n",
|
||||
mac_mul_nm[cpu->extn_mac_mul.type].str);
|
||||
if (cpu->extn.debug)
|
||||
n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s%s\n",
|
||||
IS_AVAIL1(cpu->extn.ap, "ActionPoint "),
|
||||
IS_AVAIL1(cpu->extn.smart, "smaRT "),
|
||||
IS_AVAIL1(cpu->extn.rtt, "RTT "));
|
||||
|
||||
if (cpu->core.family == 0x34) {
|
||||
n += scnprintf(buf + n, len - n,
|
||||
"Extn [700-4.10]\t: LLOCK/SCOND %s, SWAPE %s, RTSC %s\n",
|
||||
IS_USED(CONFIG_ARC_HAS_LLSC),
|
||||
IS_USED(CONFIG_ARC_HAS_SWAPE),
|
||||
IS_USED(CONFIG_ARC_HAS_RTSC));
|
||||
}
|
||||
|
||||
n += scnprintf(buf + n, len - n, "Extn [CCM]\t: %s",
|
||||
!(cpu->dccm.sz || cpu->iccm.sz) ? "N/A" : "");
|
||||
|
||||
if (cpu->dccm.sz)
|
||||
n += scnprintf(buf + n, len - n, "DCCM: @ %x, %d KB ",
|
||||
cpu->dccm.base_addr, TO_KB(cpu->dccm.sz));
|
||||
|
||||
if (cpu->iccm.sz)
|
||||
n += scnprintf(buf + n, len - n, "ICCM: @ %x, %d KB",
|
||||
if (cpu->dccm.sz || cpu->iccm.sz)
|
||||
n += scnprintf(buf + n, len - n, "Extn [CCM]\t: DCCM @ %x, %d KB / ICCM: @ %x, %d KB\n",
|
||||
cpu->dccm.base_addr, TO_KB(cpu->dccm.sz),
|
||||
cpu->iccm.base_addr, TO_KB(cpu->iccm.sz));
|
||||
|
||||
n += scnprintf(buf + n, len - n, "\nExtn [FPU]\t: %s",
|
||||
!(cpu->fp.ver || cpu->dpfp.ver) ? "N/A" : "");
|
||||
|
||||
if (cpu->fp.ver)
|
||||
n += scnprintf(buf + n, len - n, "SP [v%d] %s",
|
||||
cpu->fp.ver, cpu->fp.fast ? "(fast)" : "");
|
||||
|
||||
if (cpu->dpfp.ver)
|
||||
n += scnprintf(buf + n, len - n, "DP [v%d] %s",
|
||||
cpu->dpfp.ver, cpu->dpfp.fast ? "(fast)" : "");
|
||||
|
||||
n += scnprintf(buf + n, len - n, "\n");
|
||||
|
||||
n += scnprintf(buf + n, len - n,
|
||||
"OS ABI [v3]\t: no-legacy-syscalls\n");
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
static void arc_chk_ccms(void)
|
||||
static void arc_chk_core_config(void)
|
||||
{
|
||||
#if defined(CONFIG_ARC_HAS_DCCM) || defined(CONFIG_ARC_HAS_ICCM)
|
||||
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
|
||||
int fpu_enabled;
|
||||
|
||||
if (!cpu->timers.t0)
|
||||
panic("Timer0 is not present!\n");
|
||||
|
||||
if (!cpu->timers.t1)
|
||||
panic("Timer1 is not present!\n");
|
||||
|
||||
if (IS_ENABLED(CONFIG_ARC_HAS_RTSC) && !cpu->timers.rtsc)
|
||||
panic("RTSC is not present\n");
|
||||
|
||||
#ifdef CONFIG_ARC_HAS_DCCM
|
||||
/*
|
||||
@ -256,33 +270,20 @@ static void arc_chk_ccms(void)
|
||||
if (CONFIG_ARC_ICCM_SZ != cpu->iccm.sz)
|
||||
panic("Linux built with incorrect ICCM Size\n");
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* Ensure that FP hardware and kernel config match
|
||||
* -If hardware contains DPFP, kernel needs to save/restore FPU state
|
||||
* across context switches
|
||||
* -If hardware lacks DPFP, but kernel configured to save FPU state then
|
||||
* kernel trying to access non-existant DPFP regs will crash
|
||||
*
|
||||
* We only check for Dbl precision Floating Point, because only DPFP
|
||||
* hardware has dedicated regs which need to be saved/restored on ctx-sw
|
||||
* (Single Precision uses core regs), thus kernel is kind of oblivious to it
|
||||
*/
|
||||
static void arc_chk_fpu(void)
|
||||
{
|
||||
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
|
||||
/*
|
||||
* FP hardware/software config sanity
|
||||
* -If hardware contains DPFP, kernel needs to save/restore FPU state
|
||||
* -If not, it will crash trying to save/restore the non-existant regs
|
||||
*
|
||||
* (only DPDP checked since SP has no arch visible regs)
|
||||
*/
|
||||
fpu_enabled = IS_ENABLED(CONFIG_ARC_FPU_SAVE_RESTORE);
|
||||
|
||||
if (cpu->dpfp.ver) {
|
||||
#ifndef CONFIG_ARC_FPU_SAVE_RESTORE
|
||||
pr_warn("DPFP support broken in this kernel...\n");
|
||||
#endif
|
||||
} else {
|
||||
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
|
||||
panic("H/w lacks DPFP support, apps won't work\n");
|
||||
#endif
|
||||
}
|
||||
if (cpu->extn.fpu_dp && !fpu_enabled)
|
||||
pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n");
|
||||
else if (!cpu->extn.fpu_dp && fpu_enabled)
|
||||
panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
|
||||
}
|
||||
|
||||
/*
|
||||
@ -303,15 +304,11 @@ void setup_processor(void)
|
||||
|
||||
arc_mmu_init();
|
||||
arc_cache_init();
|
||||
arc_chk_ccms();
|
||||
|
||||
printk(arc_extn_mumbojumbo(cpu_id, str, sizeof(str)));
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
printk(arc_platform_smp_cpuinfo());
|
||||
#endif
|
||||
|
||||
arc_chk_fpu();
|
||||
arc_chk_core_config();
|
||||
}
|
||||
|
||||
static inline int is_kernel(unsigned long addr)
|
||||
@ -360,11 +357,7 @@ void __init setup_arch(char **cmdline_p)
|
||||
machine_desc->init_early();
|
||||
|
||||
setup_processor();
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
smp_init_cpus();
|
||||
#endif
|
||||
|
||||
setup_arch_memory();
|
||||
|
||||
/* copy flat DT out of .init and then unflatten it */
|
||||
@ -385,7 +378,13 @@ void __init setup_arch(char **cmdline_p)
|
||||
|
||||
static int __init customize_machine(void)
|
||||
{
|
||||
/* Add platform devices */
|
||||
of_clk_init(NULL);
|
||||
/*
|
||||
* Traverses flattened DeviceTree - registering platform devices
|
||||
* (if any) complete with their resources
|
||||
*/
|
||||
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
|
||||
|
||||
if (machine_desc->init_machine)
|
||||
machine_desc->init_machine();
|
||||
|
||||
@ -419,19 +418,14 @@ static int show_cpuinfo(struct seq_file *m, void *v)
|
||||
|
||||
seq_printf(m, arc_cpu_mumbojumbo(cpu_id, str, PAGE_SIZE));
|
||||
|
||||
seq_printf(m, "Bogo MIPS : \t%lu.%02lu\n",
|
||||
seq_printf(m, "Bogo MIPS\t: %lu.%02lu\n",
|
||||
loops_per_jiffy / (500000 / HZ),
|
||||
(loops_per_jiffy / (5000 / HZ)) % 100);
|
||||
|
||||
seq_printf(m, arc_mmu_mumbojumbo(cpu_id, str, PAGE_SIZE));
|
||||
|
||||
seq_printf(m, arc_cache_mumbojumbo(cpu_id, str, PAGE_SIZE));
|
||||
|
||||
seq_printf(m, arc_extn_mumbojumbo(cpu_id, str, PAGE_SIZE));
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
seq_printf(m, arc_platform_smp_cpuinfo());
|
||||
#endif
|
||||
|
||||
free_page((unsigned long)str);
|
||||
done:
|
||||
|
||||
@ -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;
|
||||
unsigned int tot_sz;
|
||||
|
||||
/* printk("Kernel Cache Cohenercy: %lx to %lx\n",kstart, kend); */
|
||||
|
||||
/* 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
|
||||
|
||||
@ -1,27 +0,0 @@
|
||||
/*
|
||||
* 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
|
||||
@ -1,29 +0,0 @@
|
||||
/*
|
||||
* 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
|
||||
|
||||
Loading…
Reference in New Issue
Block a user