diff options
Diffstat (limited to 'arch/sh/kernel')
| -rw-r--r-- | arch/sh/kernel/cpu/sh3/entry.S | 85 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4/probe.c | 5 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/pinmux-sh7786.c | 185 | ||||
| -rw-r--r-- | arch/sh/kernel/idle.c | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/io_trapped.c | 13 | ||||
| -rw-r--r-- | arch/sh/kernel/process_32.c | 14 | ||||
| -rw-r--r-- | arch/sh/kernel/ptrace_32.c | 6 | ||||
| -rw-r--r-- | arch/sh/kernel/setup.c | 5 | ||||
| -rw-r--r-- | arch/sh/kernel/traps_32.c | 2 |
9 files changed, 80 insertions, 237 deletions
diff --git a/arch/sh/kernel/cpu/sh3/entry.S b/arch/sh/kernel/cpu/sh3/entry.S index 55da0ff9848d..3cb531f233f2 100644 --- a/arch/sh/kernel/cpu/sh3/entry.S +++ b/arch/sh/kernel/cpu/sh3/entry.S @@ -254,40 +254,6 @@ restore_all: lds k2, pr ! restore pr ! -#ifdef CONFIG_SH_DSP - mov.l @r15+, k0 ! DSP mode marker - mov.l 5f, k1 - cmp/eq k0, k1 ! Do we have a DSP stack frame? - bf skip_restore - - stc sr, k0 ! Enable CPU DSP mode - or k1, k0 ! (within kernel it may be disabled) - ldc k0, sr - mov r2, k0 ! Backup r2 - - ! Restore DSP registers from stack - mov r15, r2 - movs.l @r2+, a1 - movs.l @r2+, a0g - movs.l @r2+, a1g - movs.l @r2+, m0 - movs.l @r2+, m1 - mov r2, r15 - - lds.l @r15+, a0 - lds.l @r15+, x0 - lds.l @r15+, x1 - lds.l @r15+, y0 - lds.l @r15+, y1 - lds.l @r15+, dsr - ldc.l @r15+, rs - ldc.l @r15+, re - ldc.l @r15+, mod - - mov k0, r2 ! Restore r2 -skip_restore: -#endif - ! ! Calculate new SR value mov k3, k2 ! original SR value mov #0xf0, k1 @@ -358,7 +324,7 @@ general_exception: add k0, k4 0: ! Setup stack and save DSP context (k0 contains original r15 on return) - bsr prepare_stack_save_dsp + bsr prepare_stack nop ! Save registers / Switch to bank 0 @@ -374,15 +340,14 @@ general_exception: 1: .long EXPEVT #endif -! prepare_stack_save_dsp() +! prepare_stack() ! - roll back gRB ! - switch to kernel stack -! - save DSP ! k0 returns original sp (after roll back) ! k1 trashed ! k2 trashed -prepare_stack_save_dsp: +prepare_stack: #ifdef CONFIG_GUSA ! Check for roll back gRB (User and Kernel) mov r15, k0 @@ -416,47 +381,9 @@ prepare_stack_save_dsp: mov k1, r15 ! change to kernel stack ! 1: -#ifdef CONFIG_SH_DSP - ! Save DSP context if needed - stc sr, k1 - mov #0x10, k2 - shll8 k2 ! DSP=1 (0x00001000) - tst k2, k1 ! Check if in DSP mode (passed in k2) - bt/s skip_save - mov #0, k1 ! Set marker for no stack frame - - mov k2, k1 ! Save has-frame marker - - ! Save DSP registers on stack - stc.l mod, @-r15 - stc.l re, @-r15 - stc.l rs, @-r15 - sts.l dsr, @-r15 - sts.l y1, @-r15 - sts.l y0, @-r15 - sts.l x1, @-r15 - sts.l x0, @-r15 - sts.l a0, @-r15 - - ! GAS is broken, does not generate correct "movs.l Ds,@-As" instr. - - ! FIXME: Make sure that this is still the case with newer toolchains, - ! as we're not at all interested in supporting ancient toolchains at - ! this point. -- PFM. - - mov r15, k2 - .word 0xf653 ! movs.l a1, @-r2 - .word 0xf6f3 ! movs.l a0g, @-r2 - .word 0xf6d3 ! movs.l a1g, @-r2 - .word 0xf6c3 ! movs.l m0, @-r2 - .word 0xf6e3 ! movs.l m1, @-r2 - mov k2, r15 - -skip_save: - mov.l k1, @-r15 ! Push DSP mode marker onto stack -#endif rts nop + ! ! 0x400: Instruction and Data TLB miss exception vector ! @@ -468,7 +395,7 @@ handle_exception: mova exception_data, k0 ! Setup stack and save DSP context (k0 contains original r15 on return) - bsr prepare_stack_save_dsp + bsr prepare_stack PREF(k0) ! Save registers / Switch to bank 0 @@ -572,7 +499,7 @@ ENTRY(handle_interrupt) mova exception_data, k0 ! Setup stack and save DSP context (k0 contains original r15 on return) - bsr prepare_stack_save_dsp + bsr prepare_stack PREF(k0) ! Save registers / Switch to bank 0 diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 3d3a3c4425a9..91e3677ae09d 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c @@ -199,11 +199,6 @@ int __init detect_cpu_and_cache_system(void) break; } -#ifdef CONFIG_SH_DIRECT_MAPPED - boot_cpu_data.icache.ways = 1; - boot_cpu_data.dcache.ways = 1; -#endif - #ifdef CONFIG_CPU_HAS_PTEA boot_cpu_data.flags |= CPU_HAS_PTEA; #endif diff --git a/arch/sh/kernel/cpu/sh4a/pinmux-sh7786.c b/arch/sh/kernel/cpu/sh4a/pinmux-sh7786.c index 373b3447bfdf..4229e0724c89 100644 --- a/arch/sh/kernel/cpu/sh4a/pinmux-sh7786.c +++ b/arch/sh/kernel/cpu/sh4a/pinmux-sh7786.c @@ -149,150 +149,44 @@ enum { PINMUX_FUNCTION_END, PINMUX_MARK_BEGIN, - CDE_MARK, - ETH_MAGIC_MARK, - DISP_MARK, - ETH_LINK_MARK, - DR5_MARK, - ETH_TX_ER_MARK, - DR4_MARK, - ETH_TX_EN_MARK, - DR3_MARK, - ETH_TXD3_MARK, - DR2_MARK, - ETH_TXD2_MARK, - DR1_MARK, - ETH_TXD1_MARK, - DR0_MARK, - ETH_TXD0_MARK, - - VSYNC_MARK, - HSPI_CLK_MARK, - ODDF_MARK, - HSPI_CS_MARK, - DG5_MARK, - ETH_MDIO_MARK, - DG4_MARK, - ETH_RX_CLK_MARK, - DG3_MARK, - ETH_MDC_MARK, - DG2_MARK, - ETH_COL_MARK, - DG1_MARK, - ETH_TX_CLK_MARK, - DG0_MARK, - ETH_CRS_MARK, - - DCLKIN_MARK, - HSPI_RX_MARK, - HSYNC_MARK, - HSPI_TX_MARK, - DB5_MARK, - ETH_RXD3_MARK, - DB4_MARK, - ETH_RXD2_MARK, - DB3_MARK, - ETH_RXD1_MARK, - DB2_MARK, - ETH_RXD0_MARK, - DB1_MARK, - ETH_RX_DV_MARK, - DB0_MARK, - ETH_RX_ER_MARK, - - DCLKOUT_MARK, - SCIF1_SLK_MARK, - SCIF1_RXD_MARK, - SCIF1_TXD_MARK, - DACK1_MARK, - BACK_MARK, - FALE_MARK, - DACK0_MARK, - FCLE_MARK, - DREQ1_MARK, - BREQ_MARK, - USB_OVC1_MARK, - DREQ0_MARK, - USB_OVC0_MARK, - - USB_PENC1_MARK, - USB_PENC0_MARK, - - HAC1_SDOUT_MARK, - SSI1_SDATA_MARK, - SDIF1CMD_MARK, - HAC1_SDIN_MARK, - SSI1_SCK_MARK, - SDIF1CD_MARK, - HAC1_SYNC_MARK, - SSI1_WS_MARK, - SDIF1WP_MARK, - HAC1_BITCLK_MARK, - SSI1_CLK_MARK, - SDIF1CLK_MARK, - HAC0_SDOUT_MARK, - SSI0_SDATA_MARK, - SDIF1D3_MARK, - HAC0_SDIN_MARK, - SSI0_SCK_MARK, - SDIF1D2_MARK, - HAC0_SYNC_MARK, - SSI0_WS_MARK, - SDIF1D1_MARK, - HAC0_BITCLK_MARK, - SSI0_CLK_MARK, - SDIF1D0_MARK, - - SCIF3_SCK_MARK, - SSI2_SDATA_MARK, - SCIF3_RXD_MARK, - TCLK_MARK, - SSI2_SCK_MARK, - SCIF3_TXD_MARK, + DCLKIN_MARK, DCLKOUT_MARK, ODDF_MARK, + VSYNC_MARK, HSYNC_MARK, CDE_MARK, DISP_MARK, + DR0_MARK, DR1_MARK, DR2_MARK, DR3_MARK, DR4_MARK, DR5_MARK, + DG0_MARK, DG1_MARK, DG2_MARK, DG3_MARK, DG4_MARK, DG5_MARK, + DB0_MARK, DB1_MARK, DB2_MARK, DB3_MARK, DB4_MARK, DB5_MARK, + ETH_MAGIC_MARK, ETH_LINK_MARK, ETH_TX_ER_MARK, ETH_TX_EN_MARK, + ETH_MDIO_MARK, ETH_RX_CLK_MARK, ETH_MDC_MARK, ETH_COL_MARK, + ETH_TX_CLK_MARK, ETH_CRS_MARK, ETH_RX_DV_MARK, ETH_RX_ER_MARK, + ETH_TXD3_MARK, ETH_TXD2_MARK, ETH_TXD1_MARK, ETH_TXD0_MARK, + ETH_RXD3_MARK, ETH_RXD2_MARK, ETH_RXD1_MARK, ETH_RXD0_MARK, + HSPI_CLK_MARK, HSPI_CS_MARK, HSPI_RX_MARK, HSPI_TX_MARK, + SCIF0_CTS_MARK, SCIF0_RTS_MARK, + SCIF0_SCK_MARK, SCIF0_RXD_MARK, SCIF0_TXD_MARK, + SCIF1_SCK_MARK, SCIF1_RXD_MARK, SCIF1_TXD_MARK, + SCIF3_SCK_MARK, SCIF3_RXD_MARK, SCIF3_TXD_MARK, + SCIF4_SCK_MARK, SCIF4_RXD_MARK, SCIF4_TXD_MARK, + SCIF5_SCK_MARK, SCIF5_RXD_MARK, SCIF5_TXD_MARK, + BREQ_MARK, IOIS16_MARK, CE2B_MARK, CE2A_MARK, BACK_MARK, + FALE_MARK, FRB_MARK, FSTATUS_MARK, + FSE_MARK, FCLE_MARK, + DACK0_MARK, DACK1_MARK, DACK2_MARK, DACK3_MARK, + DREQ0_MARK, DREQ1_MARK, DREQ2_MARK, DREQ3_MARK, + DRAK0_MARK, DRAK1_MARK, DRAK2_MARK, DRAK3_MARK, + USB_OVC1_MARK, USB_OVC0_MARK, + USB_PENC1_MARK, USB_PENC0_MARK, HAC_RES_MARK, - SSI2_WS_MARK, - - DACK3_MARK, - SDIF0CMD_MARK, - DACK2_MARK, - SDIF0CD_MARK, - DREQ3_MARK, - SDIF0WP_MARK, - SCIF0_CTS_MARK, - DREQ2_MARK, - SDIF0CLK_MARK, - SCIF0_RTS_MARK, - IRL7_MARK, - SDIF0D3_MARK, - SCIF0_SCK_MARK, - IRL6_MARK, - SDIF0D2_MARK, - SCIF0_RXD_MARK, - IRL5_MARK, - SDIF0D1_MARK, - SCIF0_TXD_MARK, - IRL4_MARK, - SDIF0D0_MARK, - - SCIF5_SCK_MARK, - FRB_MARK, - SCIF5_RXD_MARK, - IOIS16_MARK, - SCIF5_TXD_MARK, - CE2B_MARK, - DRAK3_MARK, - CE2A_MARK, - SCIF4_SCK_MARK, - DRAK2_MARK, - SSI3_WS_MARK, - SCIF4_RXD_MARK, - DRAK1_MARK, - SSI3_SDATA_MARK, - FSTATUS_MARK, - SCIF4_TXD_MARK, - DRAK0_MARK, - SSI3_SCK_MARK, - FSE_MARK, + HAC1_SDOUT_MARK, HAC1_SDIN_MARK, HAC1_SYNC_MARK, HAC1_BITCLK_MARK, + HAC0_SDOUT_MARK, HAC0_SDIN_MARK, HAC0_SYNC_MARK, HAC0_BITCLK_MARK, + SSI0_SDATA_MARK, SSI0_SCK_MARK, SSI0_WS_MARK, SSI0_CLK_MARK, + SSI1_SDATA_MARK, SSI1_SCK_MARK, SSI1_WS_MARK, SSI1_CLK_MARK, + SSI2_SDATA_MARK, SSI2_SCK_MARK, SSI2_WS_MARK, + SSI3_SDATA_MARK, SSI3_SCK_MARK, SSI3_WS_MARK, + SDIF1CMD_MARK, SDIF1CD_MARK, SDIF1WP_MARK, SDIF1CLK_MARK, + SDIF1D3_MARK, SDIF1D2_MARK, SDIF1D1_MARK, SDIF1D0_MARK, + SDIF0CMD_MARK, SDIF0CD_MARK, SDIF0WP_MARK, SDIF0CLK_MARK, + SDIF0D3_MARK, SDIF0D2_MARK, SDIF0D1_MARK, SDIF0D0_MARK, + TCLK_MARK, + IRL7_MARK, IRL6_MARK, IRL5_MARK, IRL4_MARK, PINMUX_MARK_END, }; @@ -377,7 +271,6 @@ static pinmux_enum_t pinmux_data[] = { PINMUX_DATA(PJ1_DATA, PJ1_IN, PJ1_OUT, PJ1_IN_PU), /* PA FN */ - PINMUX_MARK_BEGIN, PINMUX_DATA(CDE_MARK, P1MSEL2_0, PA7_FN), PINMUX_DATA(DISP_MARK, P1MSEL2_0, PA6_FN), PINMUX_DATA(DR5_MARK, P1MSEL2_0, PA5_FN), @@ -434,7 +327,7 @@ static pinmux_enum_t pinmux_data[] = { /* PD FN */ PINMUX_DATA(DCLKOUT_MARK, PD7_FN), - PINMUX_DATA(SCIF1_SLK_MARK, PD6_FN), + PINMUX_DATA(SCIF1_SCK_MARK, PD6_FN), PINMUX_DATA(SCIF1_RXD_MARK, PD5_FN), PINMUX_DATA(SCIF1_TXD_MARK, PD4_FN), PINMUX_DATA(DACK1_MARK, P1MSEL13_1, P1MSEL12_0, PD3_FN), @@ -662,7 +555,7 @@ static struct pinmux_gpio pinmux_gpios[] = { PINMUX_GPIO(GPIO_FN_DB0, DB0_MARK), PINMUX_GPIO(GPIO_FN_ETH_RX_ER, ETH_RX_ER_MARK), PINMUX_GPIO(GPIO_FN_DCLKOUT, DCLKOUT_MARK), - PINMUX_GPIO(GPIO_FN_SCIF1_SLK, SCIF1_SLK_MARK), + PINMUX_GPIO(GPIO_FN_SCIF1_SCK, SCIF1_SCK_MARK), PINMUX_GPIO(GPIO_FN_SCIF1_RXD, SCIF1_RXD_MARK), PINMUX_GPIO(GPIO_FN_SCIF1_TXD, SCIF1_TXD_MARK), PINMUX_GPIO(GPIO_FN_DACK1, DACK1_MARK), diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c index fe59ccfc1152..f35ed0348850 100644 --- a/arch/sh/kernel/idle.c +++ b/arch/sh/kernel/idle.c @@ -38,7 +38,7 @@ static int __init hlt_setup(char *__unused) } __setup("hlt", hlt_setup); -static void default_idle(void) +void default_idle(void) { if (!hlt_counter) { clear_thread_flag(TIF_POLLING_NRFLAG); diff --git a/arch/sh/kernel/io_trapped.c b/arch/sh/kernel/io_trapped.c index 39cd7f3aec7b..c22853b059ef 100644 --- a/arch/sh/kernel/io_trapped.c +++ b/arch/sh/kernel/io_trapped.c @@ -14,6 +14,7 @@ #include <linux/bitops.h> #include <linux/vmalloc.h> #include <linux/module.h> +#include <linux/init.h> #include <asm/system.h> #include <asm/mmu_context.h> #include <asm/uaccess.h> @@ -32,6 +33,15 @@ EXPORT_SYMBOL_GPL(trapped_mem); #endif static DEFINE_SPINLOCK(trapped_lock); +static int trapped_io_disable __read_mostly; + +static int __init trapped_io_setup(char *__unused) +{ + trapped_io_disable = 1; + return 1; +} +__setup("noiotrap", trapped_io_setup); + int register_trapped_io(struct trapped_io *tiop) { struct resource *res; @@ -39,6 +49,9 @@ int register_trapped_io(struct trapped_io *tiop) struct page *pages[TRAPPED_PAGES_MAX]; int k, n; + if (unlikely(trapped_io_disable)) + return 0; + /* structure must be page aligned */ if ((unsigned long)tiop & (PAGE_SIZE - 1)) goto bad; diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 694bc15f84fd..6d94725d22f2 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -176,14 +176,26 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, { struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs; -#if defined(CONFIG_SH_FPU) +#if defined(CONFIG_SH_FPU) || defined(CONFIG_SH_DSP) struct task_struct *tsk = current; +#endif +#if defined(CONFIG_SH_FPU) unlazy_fpu(tsk, regs); p->thread.fpu = tsk->thread.fpu; copy_to_stopped_child_used_math(p); #endif +#if defined(CONFIG_SH_DSP) + if (is_dsp_enabled(tsk)) { + /* We can use the __save_dsp or just copy the struct: + * __save_dsp(p); + * p->thread.dsp_status.status |= SR_DSP + */ + p->thread.dsp_status = tsk->thread.dsp_status; + } +#endif + childregs = task_pt_regs(p); *childregs = *regs; diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index 29ca09d24ef8..f7b22dd83b0c 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -200,7 +200,8 @@ static int dspregs_get(struct task_struct *target, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - const struct pt_dspregs *regs = task_pt_dspregs(target); + const struct pt_dspregs *regs = + (struct pt_dspregs *)&target->thread.dsp_status.dsp_regs; int ret; ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, @@ -217,7 +218,8 @@ static int dspregs_set(struct task_struct *target, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - struct pt_dspregs *regs = task_pt_dspregs(target); + struct pt_dspregs *regs = + (struct pt_dspregs *)&target->thread.dsp_status.dsp_regs; int ret; ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 24c60251f680..04a6004fccc4 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -103,12 +103,11 @@ static int __init early_parse_mem(char *p) size = memparse(p, &p); if (size > __MEMORY_SIZE) { - static char msg[] __initdata = KERN_ERR + printk(KERN_ERR "Using mem= to increase the size of kernel memory " "is not allowed.\n" " Recompile the kernel with the correct value for " - "CONFIG_MEMORY_SIZE.\n"; - printk(msg); + "CONFIG_MEMORY_SIZE.\n"); return 0; } diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c index 60dcf87ed019..30ca9c51e52d 100644 --- a/arch/sh/kernel/traps_32.c +++ b/arch/sh/kernel/traps_32.c @@ -664,6 +664,8 @@ asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5, if (is_dsp_inst(regs)) { /* Enable DSP mode, and restart instruction. */ regs->sr |= SR_DSP; + /* Save DSP mode */ + tsk->thread.dsp_status.status |= SR_DSP; return; } #endif |