diff options
Diffstat (limited to 'arch/mips/include/asm')
-rw-r--r-- | arch/mips/include/asm/netlogic/common.h | 56 | ||||
-rw-r--r-- | arch/mips/include/asm/netlogic/haldefs.h | 142 | ||||
-rw-r--r-- | arch/mips/include/asm/netlogic/xlr/iomap.h | 22 | ||||
-rw-r--r-- | arch/mips/include/asm/netlogic/xlr/pic.h | 69 | ||||
-rw-r--r-- | arch/mips/include/asm/netlogic/xlr/xlr.h | 11 |
5 files changed, 249 insertions, 51 deletions
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h new file mode 100644 index 0000000..e5bdf8c --- /dev/null +++ b/arch/mips/include/asm/netlogic/common.h @@ -0,0 +1,56 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _NETLOGIC_COMMON_H_ +#define _NETLOGIC_COMMON_H_ + +/* + * Common SMP definitions + */ +struct irq_desc; +extern struct plat_smp_ops nlm_smp_ops; +extern char nlm_reset_entry[], nlm_reset_entry_end[]; +void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc); +void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc); +void nlm_smp_irq_init(void); +void prom_pre_boot_secondary_cpus(void); +int nlm_wakeup_secondary_cpus(u32 wakeup_mask); +void nlm_boot_smp_nmi(void); + +/* + * Misc. + */ +extern unsigned long nlm_common_ebase; +unsigned int nlm_get_cpu_frequency(void); +#endif /* _NETLOGIC_COMMON_H_ */ diff --git a/arch/mips/include/asm/netlogic/haldefs.h b/arch/mips/include/asm/netlogic/haldefs.h new file mode 100644 index 0000000..e3264c1 --- /dev/null +++ b/arch/mips/include/asm/netlogic/haldefs.h @@ -0,0 +1,142 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __NLM_HAL_HALDEFS_H__ +#define __NLM_HAL_HALDEFS_H__ + +/* + * This file contains platform specific memory mapped IO implementation + * and will provide a way to read 32/64 bit memory mapped registers in + * all ABIs + */ +/* + * For o32 compilation, we have to disable interrupts and enable KX bit to + * access 64 bit addresses or data. + * + * We need to disable interrupts because we save just the lower 32 bits of + * registers in interrupt handling. So if we get hit by an interrupt while + * using the upper 32 bits of a register, we lose. + */ +static inline uint32_t nlm_save_flags_kx(void) +{ + return change_c0_status(ST0_KX | ST0_IE, ST0_KX); +} + +static inline uint32_t nlm_save_flags_cop2(void) +{ + return change_c0_status(ST0_CU2 | ST0_IE, ST0_CU2); +} + +static inline void nlm_restore_flags(uint32_t sr) +{ + write_c0_status(sr); +} + +/* + * The n64 implementations are simple, the o32 implementations when they + * are added, will have to disable interrupts and enable KX before doing + * 64 bit ops. + */ +static inline uint32_t +nlm_read_reg(uint64_t base, uint32_t reg) +{ + volatile uint32_t *addr = (volatile uint32_t *)(long)base + reg; + + return *addr; +} + +static inline void +nlm_write_reg(uint64_t base, uint32_t reg, uint32_t val) +{ + volatile uint32_t *addr = (volatile uint32_t *)(long)base + reg; + + *addr = val; +} + +static inline uint64_t +nlm_read_reg64(uint64_t base, uint32_t reg) +{ + uint64_t addr = base + (reg >> 1) * sizeof(uint64_t); + volatile uint64_t *ptr = (volatile uint64_t *)(long)addr; + + return *ptr; +} + +static inline void +nlm_write_reg64(uint64_t base, uint32_t reg, uint64_t val) +{ + uint64_t addr = base + (reg >> 1) * sizeof(uint64_t); + volatile uint64_t *ptr = (volatile uint64_t *)(long)addr; + + *ptr = val; +} + +/* + * Routines to store 32/64 bit values to 64 bit addresses, + * used when going thru XKPHYS to access registers + */ +static inline uint32_t +nlm_read_reg_xkphys(uint64_t base, uint32_t reg) +{ + return nlm_read_reg(base, reg); +} + +static inline void +nlm_write_reg_xkphys(uint64_t base, uint32_t reg, uint32_t val) +{ + nlm_write_reg(base, reg, val); +} + +static inline uint64_t +nlm_read_reg64_xkphys(uint64_t base, uint32_t reg) +{ + return nlm_read_reg64(base, reg); +} + +static inline void +nlm_write_reg64_xkphys(uint64_t base, uint32_t reg, uint64_t val) +{ + nlm_write_reg64(base, reg, val); +} + +/* Location where IO base is mapped */ +extern uint64_t nlm_io_base; + +static inline uint64_t +nlm_mmio_base(uint32_t devoffset) +{ + return nlm_io_base + devoffset; +} + +#endif diff --git a/arch/mips/include/asm/netlogic/xlr/iomap.h b/arch/mips/include/asm/netlogic/xlr/iomap.h index 2e3a4dd..2e768f0 100644 --- a/arch/mips/include/asm/netlogic/xlr/iomap.h +++ b/arch/mips/include/asm/netlogic/xlr/iomap.h @@ -106,26 +106,4 @@ #define DEFAULT_HT_TYPE0_CFG_BASE 0x16000000 #define DEFAULT_HT_TYPE1_CFG_BASE 0x17000000 -#ifndef __ASSEMBLY__ -#include <linux/types.h> -#include <asm/byteorder.h> - -typedef volatile __u32 nlm_reg_t; -extern unsigned long netlogic_io_base; - -/* FIXME read once in write_reg */ -#ifdef CONFIG_CPU_LITTLE_ENDIAN -#define netlogic_read_reg(base, offset) ((base)[(offset)]) -#define netlogic_write_reg(base, offset, value) ((base)[(offset)] = (value)) -#else -#define netlogic_read_reg(base, offset) (be32_to_cpu((base)[(offset)])) -#define netlogic_write_reg(base, offset, value) \ - ((base)[(offset)] = cpu_to_be32((value))) -#endif - -#define netlogic_read_reg_le32(base, offset) (le32_to_cpu((base)[(offset)])) -#define netlogic_write_reg_le32(base, offset, value) \ - ((base)[(offset)] = cpu_to_le32((value))) -#define netlogic_io_mmio(offset) ((nlm_reg_t *)(netlogic_io_base+(offset))) -#endif /* __ASSEMBLY__ */ #endif diff --git a/arch/mips/include/asm/netlogic/xlr/pic.h b/arch/mips/include/asm/netlogic/xlr/pic.h index 5cceb74..868013e 100644 --- a/arch/mips/include/asm/netlogic/xlr/pic.h +++ b/arch/mips/include/asm/netlogic/xlr/pic.h @@ -193,39 +193,72 @@ /* end XLS */ #ifndef __ASSEMBLY__ -static inline void pic_send_ipi(u32 ipi) + +#define PIC_IRQ_IS_EDGE_TRIGGERED(irq) (((irq) >= PIC_TIMER_0_IRQ) && \ + ((irq) <= PIC_TIMER_7_IRQ)) +#define PIC_IRQ_IS_IRT(irq) (((irq) >= PIC_IRT_FIRST_IRQ) && \ + ((irq) <= PIC_IRT_LAST_IRQ)) + +static inline int +nlm_irq_to_irt(int irq) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + if (PIC_IRQ_IS_IRT(irq) == 0) + return -1; - netlogic_write_reg(mmio, PIC_IPI, ipi); + return PIC_IRQ_TO_INTR(irq); } -static inline u32 pic_read_control(void) +static inline int +nlm_irt_to_irq(int irt) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); - return netlogic_read_reg(mmio, PIC_CTRL); + return PIC_INTR_TO_IRQ(irt); } -static inline void pic_write_control(u32 control) +static inline void +nlm_pic_enable_irt(uint64_t base, int irt) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + uint32_t reg; - netlogic_write_reg(mmio, PIC_CTRL, control); + reg = nlm_read_reg(base, PIC_IRT_1(irt)); + nlm_write_reg(base, PIC_IRT_1(irt), reg | (1u << 31)); } -static inline void pic_update_control(u32 control) +static inline void +nlm_pic_disable_irt(uint64_t base, int irt) { - nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + uint32_t reg; - netlogic_write_reg(mmio, PIC_CTRL, - (control | netlogic_read_reg(mmio, PIC_CTRL))); + reg = nlm_read_reg(base, PIC_IRT_1(irt)); + nlm_write_reg(base, PIC_IRT_1(irt), reg & ~(1u << 31)); } -#define PIC_IRQ_IS_EDGE_TRIGGERED(irq) (((irq) >= PIC_TIMER_0_IRQ) && \ - ((irq) <= PIC_TIMER_7_IRQ)) -#define PIC_IRQ_IS_IRT(irq) (((irq) >= PIC_IRT_FIRST_IRQ) && \ - ((irq) <= PIC_IRT_LAST_IRQ)) -#endif +static inline void +nlm_pic_send_ipi(uint64_t base, int hwt, int irq, int nmi) +{ + unsigned int tid, pid; + + tid = hwt & 0x3; + pid = (hwt >> 2) & 0x07; + nlm_write_reg(base, PIC_IPI, + (pid << 20) | (tid << 16) | (nmi << 8) | irq); +} + +static inline void +nlm_pic_ack(uint64_t base, int irt) +{ + nlm_write_reg(base, PIC_INT_ACK, 1u << irt); +} +static inline void +nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt) +{ + nlm_write_reg(base, PIC_IRT_0(irt), (1u << hwt)); + /* local scheduling, invalid, level by default */ + nlm_write_reg(base, PIC_IRT_1(irt), + (1 << 30) | (1 << 6) | irq); +} + +extern uint64_t nlm_pic_base; +#endif #endif /* _ASM_NLM_XLR_PIC_H */ diff --git a/arch/mips/include/asm/netlogic/xlr/xlr.h b/arch/mips/include/asm/netlogic/xlr/xlr.h index 3e63726..f4d3f7c 100644 --- a/arch/mips/include/asm/netlogic/xlr/xlr.h +++ b/arch/mips/include/asm/netlogic/xlr/xlr.h @@ -40,17 +40,6 @@ struct uart_port; unsigned int nlm_xlr_uart_in(struct uart_port *, int); void nlm_xlr_uart_out(struct uart_port *, int, int); -/* SMP support functions */ -struct irq_desc; -void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc); -void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc); -int nlm_wakeup_secondary_cpus(u32 wakeup_mask); -void nlm_smp_irq_init(void); -void nlm_boot_smp_nmi(void); -void prom_pre_boot_secondary_cpus(void); - -extern struct plat_smp_ops nlm_smp_ops; -extern unsigned long nlm_common_ebase; /* XLS B silicon "Rook" */ static inline unsigned int nlm_chip_is_xls_b(void) |