diff options
Diffstat (limited to 'arch/mn10300/kernel')
| -rw-r--r-- | arch/mn10300/kernel/entry.S | 3 | ||||
| -rw-r--r-- | arch/mn10300/kernel/gdb-io-serial.c | 2 | ||||
| -rw-r--r-- | arch/mn10300/kernel/gdb-stub.c | 24 | ||||
| -rw-r--r-- | arch/mn10300/kernel/mn10300-serial.c | 5 | ||||
| -rw-r--r-- | arch/mn10300/kernel/module.c | 35 | ||||
| -rw-r--r-- | arch/mn10300/kernel/setup.c | 2 | ||||
| -rw-r--r-- | arch/mn10300/kernel/vmlinux.lds.S | 22 |
7 files changed, 29 insertions, 64 deletions
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S index b7cbb1487af..62fba8aa9b6 100644 --- a/arch/mn10300/kernel/entry.S +++ b/arch/mn10300/kernel/entry.S @@ -180,6 +180,7 @@ ENTRY(resume_userspace) #ifdef CONFIG_PREEMPT ENTRY(resume_kernel) + __cli mov (TI_preempt_count,a2),d0 # non-zero preempt_count ? cmp 0,d0 bne restore_all @@ -190,7 +191,7 @@ need_resched: mov (REG_EPSW,fp),d0 and EPSW_IM,d0 cmp EPSW_IM_7,d0 # interrupts off (exception path) ? - beq restore_all + bne restore_all call preempt_schedule_irq[],0 jmp need_resched #endif diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c index 9a6d4e8ebe7..11584c51acd 100644 --- a/arch/mn10300/kernel/gdb-io-serial.c +++ b/arch/mn10300/kernel/gdb-io-serial.c @@ -99,6 +99,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock) try_again: /* pull chars out of the buffer */ ix = gdbstub_rx_outp; + barrier(); if (ix == gdbstub_rx_inp) { if (nonblock) return -EAGAIN; @@ -110,6 +111,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock) ch = gdbstub_rx_buffer[ix++]; st = gdbstub_rx_buffer[ix++]; + barrier(); gdbstub_rx_outp = ix & 0x00000fff; if (st & UART_LSR_BI) { diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c index 54be6afb555..0ea7482c152 100644 --- a/arch/mn10300/kernel/gdb-stub.c +++ b/arch/mn10300/kernel/gdb-stub.c @@ -522,17 +522,7 @@ static int gdbstub_single_step(struct pt_regs *regs) } else { switch (cur) { /* Bxx (d8,PC) */ - case 0xc0: - case 0xc1: - case 0xc2: - case 0xc3: - case 0xc4: - case 0xc5: - case 0xc6: - case 0xc7: - case 0xc8: - case 0xc9: - case 0xca: + case 0xc0 ... 0xca: if (gdbstub_read_byte(pc + 1, (u8 *) &x) < 0) goto fault; if (!__gdbstub_mark_bp(pc + 2, 0)) @@ -543,17 +533,7 @@ static int gdbstub_single_step(struct pt_regs *regs) break; /* LXX (d8,PC) */ - case 0xd0: - case 0xd1: - case 0xd2: - case 0xd3: - case 0xd4: - case 0xd5: - case 0xd6: - case 0xd7: - case 0xd8: - case 0xd9: - case 0xda: + case 0xd0 ... 0xda: if (!__gdbstub_mark_bp(pc + 1, 0)) goto fault; if (regs->pc != regs->lar && diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c index aa07d0cd190..59b9c4bf958 100644 --- a/arch/mn10300/kernel/mn10300-serial.c +++ b/arch/mn10300/kernel/mn10300-serial.c @@ -566,6 +566,11 @@ static void mn10300_serial_transmit_interrupt(struct mn10300_serial_port *port) { _enter("%s", port->name); + if (!port->uart.info || !port->uart.info->port.tty) { + mn10300_serial_dis_tx_intr(port); + return; + } + if (uart_tx_stopped(&port->uart) || uart_circ_empty(&port->uart.info->xmit)) mn10300_serial_dis_tx_intr(port); diff --git a/arch/mn10300/kernel/module.c b/arch/mn10300/kernel/module.c index 8fa36893df7..6b287f2e8e8 100644 --- a/arch/mn10300/kernel/module.c +++ b/arch/mn10300/kernel/module.c @@ -1,6 +1,6 @@ /* MN10300 Kernel module helper routines * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Copyright (C) 2007, 2008 Red Hat, Inc. All Rights Reserved. * Written by Mark Salter (msalter@redhat.com) * - Derived from arch/i386/kernel/module.c * @@ -64,21 +64,6 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, return 0; } -static uint32_t reloc_get16(uint8_t *p) -{ - return p[0] | (p[1] << 8); -} - -static uint32_t reloc_get24(uint8_t *p) -{ - return reloc_get16(p) | (p[2] << 16); -} - -static uint32_t reloc_get32(uint8_t *p) -{ - return reloc_get16(p) | (reloc_get16(p+2) << 16); -} - static void reloc_put16(uint8_t *p, uint32_t val) { p[0] = val & 0xff; @@ -144,25 +129,19 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, relocation = sym->st_value + rel[i].r_addend; switch (ELF32_R_TYPE(rel[i].r_info)) { - /* for the first four relocation types, we add the - * adjustment into the value at the location given */ + /* for the first four relocation types, we simply + * store the adjustment at the location given */ case R_MN10300_32: - value = reloc_get32(location); - value += relocation; - reloc_put32(location, value); + reloc_put32(location, relocation); break; case R_MN10300_24: - value = reloc_get24(location); - value += relocation; - reloc_put24(location, value); + reloc_put24(location, relocation); break; case R_MN10300_16: - value = reloc_get16(location); - value += relocation; - reloc_put16(location, value); + reloc_put16(location, relocation); break; case R_MN10300_8: - *location += relocation; + *location = relocation; break; /* for the next three relocation types, we write the diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c index 017121ce896..e1d88ab5100 100644 --- a/arch/mn10300/kernel/setup.c +++ b/arch/mn10300/kernel/setup.c @@ -161,7 +161,7 @@ void __init setup_arch(char **cmdline_p) reserve the page it is occupying. */ if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS && CONFIG_INTERRUPT_VECTOR_BASE < memory_end) - reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, 1, + reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE, BOOTMEM_DEFAULT); reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size, diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S index a3e80f444f5..b8259668f7d 100644 --- a/arch/mn10300/kernel/vmlinux.lds.S +++ b/arch/mn10300/kernel/vmlinux.lds.S @@ -11,6 +11,7 @@ #define __VMLINUX_LDS__ #include <asm-generic/vmlinux.lds.h> #include <asm/thread_info.h> +#include <asm/page.h> OUTPUT_FORMAT("elf32-am33lin", "elf32-am33lin", "elf32-am33lin") OUTPUT_ARCH(mn10300) @@ -55,13 +56,13 @@ SECTIONS CONSTRUCTORS } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __nosave_begin = .; .data_nosave : { *(.data.nosave) } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __nosave_end = .; - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .data.page_aligned : { *(.data.idt) } . = ALIGN(32); @@ -78,7 +79,7 @@ SECTIONS .data.init_task : { *(.data.init_task) } /* might get freed after init */ - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { __smp_locks = .; *(.smp_locks) @@ -86,7 +87,7 @@ SECTIONS } /* will be freed after init */ - . = ALIGN(4096); /* Init code and data */ + . = ALIGN(PAGE_SIZE); /* Init code and data */ __init_begin = .; .init.text : { _sinittext = .; @@ -120,17 +121,14 @@ SECTIONS .exit.data : { *(.exit.data) } #ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __initramfs_start = .; .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; #endif - . = ALIGN(32); - __per_cpu_start = .; - .data.percpu : { *(.data.percpu) } - __per_cpu_end = .; - . = ALIGN(4096); + PERCPU(32) + . = ALIGN(PAGE_SIZE); __init_end = .; /* freed after init ends here */ @@ -145,7 +143,7 @@ SECTIONS _end = . ; /* This is where the kernel creates the early boot page tables */ - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); pg0 = .; /* Sections to be discarded */ |