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Commit 0c965407 authored by Jayachandran C's avatar Jayachandran C Committed by Ralf Baechle
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MIPS: Netlogic: Move code common with XLP to common/



- Move code that can be shared with XLP (irq.c, smp.c, time.c and
  xlr_console.c) to arch/mips/netlogic/common
- Add asm/netlogic/haldefs.h and asm/netlogic/common.h for common and
  io functions shared with XLP
- remove type 'nlm_reg_t *' and use uint64_t for mmio offsets
- Move XLR specific code in smp.c to xlr/wakeup.c
- Move XLR specific PCI code from irq.c to mips/pci/pci-xlr.c
- Provide API for pic functions called from common/irq.c

Signed-off-by: default avatarJayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2964/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 99fb2f79
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/*
 * 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_ */
+142 −0
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/*
 * 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
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@@ -106,26 +106,4 @@
#define DEFAULT_HT_TYPE0_CFG_BASE       0x16000000
#define DEFAULT_HT_TYPE0_CFG_BASE       0x16000000
#define DEFAULT_HT_TYPE1_CFG_BASE       0x17000000
#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
#endif
+51 −18
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@@ -193,39 +193,72 @@
/* end XLS */
/* end XLS */


#ifndef __ASSEMBLY__
#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,
	reg = nlm_read_reg(base, PIC_IRT_1(irt));
		(control | netlogic_read_reg(mmio, PIC_CTRL)));
	nlm_write_reg(base, PIC_IRT_1(irt), reg & ~(1u << 31));
}
}


#define PIC_IRQ_IS_EDGE_TRIGGERED(irq)	(((irq) >= PIC_TIMER_0_IRQ) && \
static inline void
					((irq) <= PIC_TIMER_7_IRQ))
nlm_pic_send_ipi(uint64_t base, int hwt, int irq, int nmi)
#define PIC_IRQ_IS_IRT(irq)		(((irq) >= PIC_IRT_FIRST_IRQ) && \
{
					((irq) <= PIC_IRT_LAST_IRQ))
	unsigned int tid, pid;
#endif

	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 */
#endif /* _ASM_NLM_XLR_PIC_H */
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@@ -40,17 +40,6 @@ struct uart_port;
unsigned int nlm_xlr_uart_in(struct uart_port *, int);
unsigned int nlm_xlr_uart_in(struct uart_port *, int);
void nlm_xlr_uart_out(struct uart_port *, int, 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" */
/* XLS B silicon "Rook" */
static inline unsigned int nlm_chip_is_xls_b(void)
static inline unsigned int nlm_chip_is_xls_b(void)
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