mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 10:40:15 +02:00
d36b691077
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
/*
|
|
* IBM ASM Service Processor Device Driver
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* Copyright (C) IBM Corporation, 2004
|
|
*
|
|
* Author: Max Asböck <amax@us.ibm.com>
|
|
*
|
|
*/
|
|
|
|
/* Condor service processor specific hardware definitions */
|
|
|
|
#ifndef __IBMASM_CONDOR_H__
|
|
#define __IBMASM_CONDOR_H__
|
|
|
|
#include <asm/io.h>
|
|
|
|
#define VENDORID_IBM 0x1014
|
|
#define DEVICEID_RSA 0x010F
|
|
|
|
#define GET_MFA_ADDR(x) (x & 0xFFFFFF00)
|
|
|
|
#define MAILBOX_FULL(x) (x & 0x00000001)
|
|
|
|
#define NO_MFAS_AVAILABLE 0xFFFFFFFF
|
|
|
|
|
|
#define INBOUND_QUEUE_PORT 0x40 /* contains address of next free MFA */
|
|
#define OUTBOUND_QUEUE_PORT 0x44 /* contains address of posted MFA */
|
|
|
|
#define SP_INTR_MASK 0x00000008
|
|
#define UART_INTR_MASK 0x00000010
|
|
|
|
#define INTR_STATUS_REGISTER 0x13A0
|
|
#define INTR_CONTROL_REGISTER 0x13A4
|
|
|
|
#define SCOUT_COM_A_BASE 0x0000
|
|
#define SCOUT_COM_B_BASE 0x0100
|
|
#define SCOUT_COM_C_BASE 0x0200
|
|
#define SCOUT_COM_D_BASE 0x0300
|
|
|
|
static inline int sp_interrupt_pending(void __iomem *base_address)
|
|
{
|
|
return SP_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
|
|
}
|
|
|
|
static inline int uart_interrupt_pending(void __iomem *base_address)
|
|
{
|
|
return UART_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
|
|
}
|
|
|
|
static inline void ibmasm_enable_interrupts(void __iomem *base_address, int mask)
|
|
{
|
|
void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
|
|
writel( readl(ctrl_reg) & ~mask, ctrl_reg);
|
|
}
|
|
|
|
static inline void ibmasm_disable_interrupts(void __iomem *base_address, int mask)
|
|
{
|
|
void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
|
|
writel( readl(ctrl_reg) | mask, ctrl_reg);
|
|
}
|
|
|
|
static inline void enable_sp_interrupts(void __iomem *base_address)
|
|
{
|
|
ibmasm_enable_interrupts(base_address, SP_INTR_MASK);
|
|
}
|
|
|
|
static inline void disable_sp_interrupts(void __iomem *base_address)
|
|
{
|
|
ibmasm_disable_interrupts(base_address, SP_INTR_MASK);
|
|
}
|
|
|
|
static inline void enable_uart_interrupts(void __iomem *base_address)
|
|
{
|
|
ibmasm_enable_interrupts(base_address, UART_INTR_MASK);
|
|
}
|
|
|
|
static inline void disable_uart_interrupts(void __iomem *base_address)
|
|
{
|
|
ibmasm_disable_interrupts(base_address, UART_INTR_MASK);
|
|
}
|
|
|
|
#define valid_mfa(mfa) ( (mfa) != NO_MFAS_AVAILABLE )
|
|
|
|
static inline u32 get_mfa_outbound(void __iomem *base_address)
|
|
{
|
|
int retry;
|
|
u32 mfa;
|
|
|
|
for (retry=0; retry<=10; retry++) {
|
|
mfa = readl(base_address + OUTBOUND_QUEUE_PORT);
|
|
if (valid_mfa(mfa))
|
|
break;
|
|
}
|
|
return mfa;
|
|
}
|
|
|
|
static inline void set_mfa_outbound(void __iomem *base_address, u32 mfa)
|
|
{
|
|
writel(mfa, base_address + OUTBOUND_QUEUE_PORT);
|
|
}
|
|
|
|
static inline u32 get_mfa_inbound(void __iomem *base_address)
|
|
{
|
|
u32 mfa = readl(base_address + INBOUND_QUEUE_PORT);
|
|
|
|
if (MAILBOX_FULL(mfa))
|
|
return 0;
|
|
|
|
return mfa;
|
|
}
|
|
|
|
static inline void set_mfa_inbound(void __iomem *base_address, u32 mfa)
|
|
{
|
|
writel(mfa, base_address + INBOUND_QUEUE_PORT);
|
|
}
|
|
|
|
static inline struct i2o_message *get_i2o_message(void __iomem *base_address, u32 mfa)
|
|
{
|
|
return (struct i2o_message *)(GET_MFA_ADDR(mfa) + base_address);
|
|
}
|
|
|
|
#endif /* __IBMASM_CONDOR_H__ */
|