diff options
Diffstat (limited to 'pk/ppe42/ppe42_irq.h')
| -rw-r--r-- | pk/ppe42/ppe42_irq.h | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/pk/ppe42/ppe42_irq.h b/pk/ppe42/ppe42_irq.h deleted file mode 100644 index 89948d60..00000000 --- a/pk/ppe42/ppe42_irq.h +++ /dev/null @@ -1,218 +0,0 @@ -#ifndef __PPE42_IRQ_H__ -#define __PPE42_IRQ_H__ -//----------------------------------------------------------------------------- -// *! (C) Copyright International Business Machines Corp. 2014 -// *! All Rights Reserved -- Property of IBM -// *! *** IBM Confidential *** -//----------------------------------------------------------------------------- - -/// \file ppe42_irq.h -/// \brief PPE42 interrupt handling for PK -/// -/// Interrupt handling protocols and interrupt controller programming are -/// inherently non-portable, however PK defines APIs that may be useful among -/// different machines. -/// - - -// Define pseudo-IRQ numbers for PPE42 built-in interrupts. These numbers -// will appear in bits 16:23 of SPRG0 (__PkKernelContext) when the handlers -// are active - -#define PPE42_EXC_MACHINE_CHECK 0x50 -#define PPE42_EXC_DATA_STORAGE 0x53 -#define PPE42_EXC_INSTRUCTION_STORAGE 0x54 -#define PPE42_EXC_ALIGNMENT 0x56 -#define PPE42_EXC_PROGRAM 0x57 -#define PPE42_IRQ_DEC 0x58 -#define PPE42_IRQ_FIT 0x59 -#define PPE42_IRQ_WATCHDOG 0x5A - - -// Unhandled exceptions default to a kernel panic, but the application can -// override these definition. Note that the exception area only allocates 32 -// bytes (8 instructions) to an unhandled exception, so any redefinition -// would most likely be a branch to an application-defined handler. - -#ifndef PPE42_MACHINE_CHECK_HANDLER -#define PPE42_MACHINE_CHECK_HANDLER PK_PANIC(0x0200) -#endif - -#ifndef PPE42_DATA_STORAGE_HANDLER -#define PPE42_DATA_STORAGE_HANDLER PK_PANIC(0x0300) -#endif - -#ifndef PPE42_INSTRUCTION_STORAGE_HANDLER -#define PPE42_INSTRUCTION_STORAGE_HANDLER PK_PANIC(0x0400) -#endif - -#ifndef PPE42_ALIGNMENT_HANDLER -#define PPE42_ALIGNMENT_HANDLER PK_PANIC(0x0600) -#endif - - -//////////////////////////////////////////////////////////////////////////// -// PK API -//////////////////////////////////////////////////////////////////////////// - -#ifndef __ASSEMBLER__ - -/// An IRQ handler takes 2 arguments: -/// \arg \c arg - Private handler data installed by \c ssx_irq_setup() or -/// \c ssx_irq_handler_set(). -/// \arg \c irq - The IRQ id; to enable a generic handler to manipulate -/// its own interrupt status . - -typedef void (*PkIrqHandler)(void* arg, PkIrqId irq); - -/// Declare a subroutine as an IRQ handler - -#define PK_IRQ_HANDLER(f) void f(void* arg, PkIrqId irq) - -int pk_irq_setup(PkIrqId irq, - int polarity, - int trigger); - -int pk_irq_handler_set(PkIrqId irq, - PkIrqHandler handler, - void* arg); - -void pk_irq_enable(PkIrqId irq); -void pk_irq_disable(PkIrqId irq); -void pk_irq_statusclear(PkIrqId irq); - -PK_IRQ_HANDLER(__ppe42_default_irq_handler); -PK_IRQ_HANDLER(__ppe42_phantom_irq_handler); - - -int -ppe42_fit_setup(int tcr_fp, PkIrqHandler handler, void* arg); - - -/// The address of the optional FIT interrupt handler - -UNLESS__PPE42_IRQ_CORE_C__(extern) -volatile -PkIrqHandler __ppe42_fit_routine; - - -/// The private data of the optional FIT interrupt handler - -UNLESS__PPE42_IRQ_CORE_C__(extern) -volatile -void* __ppe42_fit_arg; - - -int -ppe42_watchdog_setup(int tcr_wp, int tcr_wrc, - PkIrqHandler handler, void* arg); - - -/// The address of the optional Watchdog interrupt handler - -UNLESS__PPE42_IRQ_CORE_C__(extern) -volatile -PkIrqHandler __ppe42_watchdog_routine; - - -/// The private data of the optional Watchdog interrupt handler - -UNLESS__PPE42_IRQ_CORE_C__(extern) -volatile -void* __ppe42_watchdog_arg; - - -int -ppe42_debug_setup(PkIrqHandler handler, void* arg); - - -/// The address of the optional Debug interrupt handler - -UNLESS__PPE42_IRQ_CORE_C__(extern) -volatile -PkIrqHandler __ppe42_debug_routine; - - -/// The private data of the optional Watchdog interrupt handler - -UNLESS__PPE42_IRQ_CORE_C__(extern) -volatile -void* __ppe42_debug_arg; - -#endif /* __ASSEMBLER__ */ - -// It's hard to be portable and get all of the definitions and headers in the -// correct order. We need to bring in the system IRQ header here. - -#ifdef HWMACRO_GPE -#include "gpe_irq.h" -#else -#ifdef HWMACRO_STD -#include "std_irq.h" -#endif -#endif - -/// \page ppe42_irq_macros_page PPE42 PK IRQ Assembler Macros -/// -/// - -#ifndef __ASSEMBLER__ - - -/// This structure holds the interrupt handler routine addresses and private -/// data. Assembler code assumes the given structure layout, so any changes -/// to this structure will need to be reflected down into the interrupt -/// dispatch assembler code. - -typedef struct { - PkIrqHandler handler; - void *arg; -} Ppe42IrqHandler; - - -#ifdef STATIC_IRQ_TABLE - -#define IRQ_HANDLER(func, arg) \ - {func, arg}, - -#define IRQ_HANDLER_DEFAULT \ - {__ppe42_default_irq_handler, 0}, - -#define EXTERNAL_IRQ_TABLE_END \ - {__ppe42_phantom_irq_handler, 0}\ -}; - -#define EXTERNAL_IRQ_TABLE_START \ - Ppe42IrqHandler __ppe42_irq_handlers[EXTERNAL_IRQS + 1] = \ -{ - -#else - -#define EXTERNAL_IRQ_TABLE_START - -#define IRQ_HANDLER(func, arg) - -#define IRQ_HANDLER_DEFAULT - -#define EXTERNAL_IRQ_TABLE_END - -#endif /*STATIC_IRQ_TABLE*/ - -/// Interrupt handlers for real (implemented interrupts) plus one for the phantom interrupt handler -extern Ppe42IrqHandler __ppe42_irq_handlers[EXTERNAL_IRQS + 1]; - - -/// The 'phantom interrupt' handler -/// -/// A 'phantom' interrupt occurs when the interrupt handling code in the -/// kernel is entered, but no interrupt is found pending in the controller. -/// This is considered a serious bug, as it indictates a short window -/// condition where a level-sensitive interrupt has been asserted and then -/// quickly deasserted before it can be handled. - -UNLESS__PPE42_IRQ_CORE_C__(extern) -Ppe42IrqHandler __ppe42_phantom_irq; - -#endif /* __ASSEMBLER__ */ - -#endif /* __PPE42_IRQ_H__ */ |
