include/asm-powerpc/machdep.h - kernel/msm-4.19 - Gitiles

 #ifndef _ASM_POWERPC_MACHDEP_H
 #define _ASM_POWERPC_MACHDEP_H
 #ifdef __KERNEL__

 /*
  * 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.
  */

 #include <linux/config.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/dma-mapping.h>

 #include <asm/setup.h>

 /* We export this macro for external modules like Alsa to know if
  * ppc_md.feature_call is implemented or not
  */
 #define CONFIG_PPC_HAS_FEATURE_CALLS

 struct pt_regs;
 struct pci_bus;
 struct device_node;
 struct iommu_table;
 struct rtc_time;
 struct file;

 #ifdef CONFIG_SMP
 struct smp_ops_t {
 	void  (*message_pass)(int target, int msg);
 	int   (*probe)(void);
 	void  (*kick_cpu)(int nr);
 	void  (*setup_cpu)(int nr);
 	void  (*take_timebase)(void);
 	void  (*give_timebase)(void);
 	int   (*cpu_enable)(unsigned int nr);
 	int   (*cpu_disable)(void);
 	void  (*cpu_die)(unsigned int nr);
 	int   (*cpu_bootable)(unsigned int nr);
 };
 #endif

 struct machdep_calls {
 #ifdef CONFIG_PPC64
 	void            (*hpte_invalidate)(unsigned long slot,
 					   unsigned long va,
 					   int psize,
 					   int local);
 	long		(*hpte_updatepp)(unsigned long slot,
 					 unsigned long newpp,
 					 unsigned long va,
 					 int pize,
 					 int local);
 	void            (*hpte_updateboltedpp)(unsigned long newpp,
 					       unsigned long ea,
 					       int psize);
 	long		(*hpte_insert)(unsigned long hpte_group,
 				       unsigned long va,
 				       unsigned long prpn,
 				       unsigned long rflags,
 				       unsigned long vflags,
 				       int psize);
 	long		(*hpte_remove)(unsigned long hpte_group);
 	void		(*flush_hash_range)(unsigned long number, int local);

 	/* special for kexec, to be called in real mode, linar mapping is
 	 * destroyed as well */
 	void		(*hpte_clear_all)(void);

 	void		(*tce_build)(struct iommu_table * tbl,
 				     long index,
 				     long npages,
 				     unsigned long uaddr,
 				     enum dma_data_direction direction);
 	void		(*tce_free)(struct iommu_table *tbl,
 				    long index,
 				    long npages);
 	void		(*tce_flush)(struct iommu_table *tbl);
 	void		(*iommu_dev_setup)(struct pci_dev *dev);
 	void		(*iommu_bus_setup)(struct pci_bus *bus);
 	void		(*irq_bus_setup)(struct pci_bus *bus);
 #endif

 	int		(*probe)(int platform);
 	void		(*setup_arch)(void);
 	void		(*init_early)(void);
 	/* Optional, may be NULL. */
 	void		(*show_cpuinfo)(struct seq_file *m);
 	void		(*show_percpuinfo)(struct seq_file *m, int i);

 	void		(*init_IRQ)(void);
 	int		(*get_irq)(struct pt_regs *);
 	void		(*cpu_irq_down)(int secondary);

 	/* PCI stuff */
 	/* Called after scanning the bus, before allocating resources */
 	void		(*pcibios_fixup)(void);
 	int		(*pci_probe_mode)(struct pci_bus *);

 	void		(*restart)(char *cmd);
 	void		(*power_off)(void);
 	void		(*halt)(void);
 	void		(*panic)(char *str);
 	void		(*cpu_die)(void);

 	long		(*time_init)(void); /* Optional, may be NULL */

 	int		(*set_rtc_time)(struct rtc_time *);
 	void		(*get_rtc_time)(struct rtc_time *);
 	unsigned long	(*get_boot_time)(void);
 	unsigned char 	(*rtc_read_val)(int addr);
 	void		(*rtc_write_val)(int addr, unsigned char val);

 	void		(*calibrate_decr)(void);

 	void		(*progress)(char *, unsigned short);

 	/* Interface for platform error logging */
 	void 		(*log_error)(char *buf, unsigned int err_type, int fatal);

 	unsigned char 	(*nvram_read_val)(int addr);
 	void		(*nvram_write_val)(int addr, unsigned char val);
 	ssize_t		(*nvram_write)(char *buf, size_t count, loff_t *index);
 	ssize_t		(*nvram_read)(char *buf, size_t count, loff_t *index);
 	ssize_t		(*nvram_size)(void);
 	void		(*nvram_sync)(void);

 	/* Exception handlers */
 	void		(*system_reset_exception)(struct pt_regs *regs);
 	int 		(*machine_check_exception)(struct pt_regs *regs);

 	/* Motherboard/chipset features. This is a kind of general purpose
 	 * hook used to control some machine specific features (like reset
 	 * lines, chip power control, etc...).
 	 */
 	long	 	(*feature_call)(unsigned int feature, ...);

 	/* Check availability of legacy devices like i8042 */
 	int 		(*check_legacy_ioport)(unsigned int baseport);

 	/* Get legacy PCI/IDE interrupt mapping */
 	int		(*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);

 	/* Get access protection for /dev/mem */
 	pgprot_t	(*phys_mem_access_prot)(struct file *file,
 						unsigned long pfn,
 						unsigned long size,
 						pgprot_t vma_prot);

 	/* Idle loop for this platform, leave empty for default idle loop */
 	void		(*idle_loop)(void);

 	/* Function to enable performance monitor counters for this
 	   platform, called once per cpu. */
 	void		(*enable_pmcs)(void);

 	/* Set DABR for this platform, leave empty for default implemenation */
 	int		(*set_dabr)(unsigned long dabr);

 #ifdef CONFIG_PPC32	/* XXX for now */
 	/* A general init function, called by ppc_init in init/main.c.
 	   May be NULL. */
 	void		(*init)(void);

 	void		(*idle)(void);
 	void		(*power_save)(void);

 	void		(*heartbeat)(void);
 	unsigned long	heartbeat_reset;
 	unsigned long	heartbeat_count;

 	void		(*setup_io_mappings)(void);

 	void		(*early_serial_map)(void);
 	void		(*kgdb_map_scc)(void);

 	/*
 	 * optional PCI "hooks"
 	 */

 	/* Called after PPC generic resource fixup to perform
 	   machine specific fixups */
 	void (*pcibios_fixup_resources)(struct pci_dev *);

 	/* Called for each PCI bus in the system when it's probed */
 	void (*pcibios_fixup_bus)(struct pci_bus *);

 	/* Called when pci_enable_device() is called (initial=0) or
 	 * when a device with no assigned resource is found (initial=1).
 	 * Returns 0 to allow assignment/enabling of the device. */
 	int  (*pcibios_enable_device_hook)(struct pci_dev *, int initial);

 	/* For interrupt routing */
 	unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
 	int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);

 	/* Called in indirect_* to avoid touching devices */
 	int (*pci_exclude_device)(unsigned char, unsigned char);

 	/* Called at then very end of pcibios_init() */
 	void (*pcibios_after_init)(void);

 	/* this is for modules, since _machine can be a define -- Cort */
 	int ppc_machine;

 #ifdef CONFIG_KEXEC
 	/* Called to shutdown machine specific hardware not already controlled
 	 * by other drivers.
 	 * XXX Should we move this one out of kexec scope?
 	 */
 	void (*machine_shutdown)(void);

 	/* Called to do the minimal shutdown needed to run a kexec'd kernel
 	 * to run successfully.
 	 * XXX Should we move this one out of kexec scope?
 	 */
 	void (*machine_crash_shutdown)(void);

 	/* Called to do what every setup is needed on image and the
 	 * reboot code buffer. Returns 0 on success.
 	 * Provide your own (maybe dummy) implementation if your platform
 	 * claims to support kexec.
 	 */
 	int (*machine_kexec_prepare)(struct kimage *image);

 	/* Called to handle any machine specific cleanup on image */
 	void (*machine_kexec_cleanup)(struct kimage *image);

 	/* Called to perform the _real_ kexec.
 	 * Do NOT allocate memory or fail here. We are past the point of
 	 * no return.
 	 */
 	void (*machine_kexec)(struct kimage *image);
 #endif /* CONFIG_KEXEC */
 #endif /* CONFIG_PPC32 */
 };

 extern void default_idle(void);
 extern void native_idle(void);

 extern struct machdep_calls ppc_md;
 extern char cmd_line[COMMAND_LINE_SIZE];

 #ifdef CONFIG_PPC_PMAC
 /*
  * Power macintoshes have either a CUDA, PMU or SMU controlling
  * system reset, power, NVRAM, RTC.
  */
 typedef enum sys_ctrler_kind {
 	SYS_CTRLER_UNKNOWN = 0,
 	SYS_CTRLER_CUDA = 1,
 	SYS_CTRLER_PMU = 2,
 	SYS_CTRLER_SMU = 3,
 } sys_ctrler_t;
 extern sys_ctrler_t sys_ctrler;

 #endif /* CONFIG_PPC_PMAC */

 extern void setup_pci_ptrs(void);

 #ifdef CONFIG_SMP
 /* Poor default implementations */
 extern void __devinit smp_generic_give_timebase(void);
 extern void __devinit smp_generic_take_timebase(void);
 #endif /* CONFIG_SMP */


 /* Functions to produce codes on the leds.
  * The SRC code should be unique for the message category and should
  * be limited to the lower 24 bits (the upper 8 are set by these funcs),
  * and (for boot & dump) should be sorted numerically in the order
  * the events occur.
  */
 /* Print a boot progress message. */
 void ppc64_boot_msg(unsigned int src, const char *msg);
 /* Print a termination message (print only -- does not stop the kernel) */
 void ppc64_terminate_msg(unsigned int src, const char *msg);

 static inline void log_error(char *buf, unsigned int err_type, int fatal)
 {
 	if (ppc_md.log_error)
 		ppc_md.log_error(buf, err_type, fatal);
 }

 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_MACHDEP_H */
	#ifndef _ASM_POWERPC_MACHDEP_H
	#define _ASM_POWERPC_MACHDEP_H
	#ifdef __KERNEL__

	/*
	* 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.
	*/

	#include <linux/config.h>
	#include <linux/seq_file.h>
	#include <linux/init.h>
	#include <linux/dma-mapping.h>

	#include <asm/setup.h>

	/* We export this macro for external modules like Alsa to know if
	* ppc_md.feature_call is implemented or not
	*/
	#define CONFIG_PPC_HAS_FEATURE_CALLS

	struct pt_regs;
	struct pci_bus;
	struct device_node;
	struct iommu_table;
	struct rtc_time;
	struct file;

	#ifdef CONFIG_SMP
	struct smp_ops_t {
	void (*message_pass)(int target, int msg);
	int (*probe)(void);
	void (*kick_cpu)(int nr);
	void (*setup_cpu)(int nr);
	void (*take_timebase)(void);
	void (*give_timebase)(void);
	int (*cpu_enable)(unsigned int nr);
	int (*cpu_disable)(void);
	void (*cpu_die)(unsigned int nr);
	int (*cpu_bootable)(unsigned int nr);
	};
	#endif

	struct machdep_calls {
	#ifdef CONFIG_PPC64
	void (*hpte_invalidate)(unsigned long slot,
	unsigned long va,
	int psize,
	int local);
	long (*hpte_updatepp)(unsigned long slot,
	unsigned long newpp,
	unsigned long va,
	int pize,
	int local);
	void (*hpte_updateboltedpp)(unsigned long newpp,
	unsigned long ea,
	int psize);
	long (*hpte_insert)(unsigned long hpte_group,
	unsigned long va,
	unsigned long prpn,
	unsigned long rflags,
	unsigned long vflags,
	int psize);
	long (*hpte_remove)(unsigned long hpte_group);
	void (*flush_hash_range)(unsigned long number, int local);

	/* special for kexec, to be called in real mode, linar mapping is
	* destroyed as well */
	void (*hpte_clear_all)(void);

	void (tce_build)(struct iommu_table tbl,
	long index,
	long npages,
	unsigned long uaddr,
	enum dma_data_direction direction);
	void (tce_free)(struct iommu_table tbl,
	long index,
	long npages);
	void (tce_flush)(struct iommu_table tbl);
	void (iommu_dev_setup)(struct pci_dev dev);
	void (iommu_bus_setup)(struct pci_bus bus);
	void (irq_bus_setup)(struct pci_bus bus);
	#endif

	int (*probe)(int platform);
	void (*setup_arch)(void);
	void (*init_early)(void);
	/* Optional, may be NULL. */
	void (show_cpuinfo)(struct seq_file m);
	void (show_percpuinfo)(struct seq_file m, int i);

	void (*init_IRQ)(void);
	int (get_irq)(struct pt_regs );
	void (*cpu_irq_down)(int secondary);

	/* PCI stuff */
	/* Called after scanning the bus, before allocating resources */
	void (*pcibios_fixup)(void);
	int (pci_probe_mode)(struct pci_bus );

	void (restart)(char cmd);
	void (*power_off)(void);
	void (*halt)(void);
	void (panic)(char str);
	void (*cpu_die)(void);

	long (time_init)(void); / Optional, may be NULL */

	int (set_rtc_time)(struct rtc_time );
	void (get_rtc_time)(struct rtc_time );
	unsigned long (*get_boot_time)(void);
	unsigned char (*rtc_read_val)(int addr);
	void (*rtc_write_val)(int addr, unsigned char val);

	void (*calibrate_decr)(void);

	void (progress)(char , unsigned short);

	/* Interface for platform error logging */
	void (log_error)(char buf, unsigned int err_type, int fatal);

	unsigned char (*nvram_read_val)(int addr);
	void (*nvram_write_val)(int addr, unsigned char val);
	ssize_t (nvram_write)(char buf, size_t count, loff_t *index);
	ssize_t (nvram_read)(char buf, size_t count, loff_t *index);
	ssize_t (*nvram_size)(void);
	void (*nvram_sync)(void);

	/* Exception handlers */
	void (system_reset_exception)(struct pt_regs regs);
	int (machine_check_exception)(struct pt_regs regs);

	/* Motherboard/chipset features. This is a kind of general purpose
	* hook used to control some machine specific features (like reset
	* lines, chip power control, etc...).
	*/
	long (*feature_call)(unsigned int feature, ...);

	/* Check availability of legacy devices like i8042 */
	int (*check_legacy_ioport)(unsigned int baseport);

	/* Get legacy PCI/IDE interrupt mapping */
	int (pci_get_legacy_ide_irq)(struct pci_dev dev, int channel);

	/* Get access protection for /dev/mem */
	pgprot_t (phys_mem_access_prot)(struct file file,
	unsigned long pfn,
	unsigned long size,
	pgprot_t vma_prot);

	/* Idle loop for this platform, leave empty for default idle loop */
	void (*idle_loop)(void);

	/* Function to enable performance monitor counters for this
	platform, called once per cpu. */
	void (*enable_pmcs)(void);

	/* Set DABR for this platform, leave empty for default implemenation */
	int (*set_dabr)(unsigned long dabr);

	#ifdef CONFIG_PPC32 /* XXX for now */
	/* A general init function, called by ppc_init in init/main.c.
	May be NULL. */
	void (*init)(void);

	void (*idle)(void);
	void (*power_save)(void);

	void (*heartbeat)(void);
	unsigned long heartbeat_reset;
	unsigned long heartbeat_count;

	void (*setup_io_mappings)(void);

	void (*early_serial_map)(void);
	void (*kgdb_map_scc)(void);

	/*
	* optional PCI "hooks"
	*/

	/* Called after PPC generic resource fixup to perform
	machine specific fixups */
	void (pcibios_fixup_resources)(struct pci_dev );

	/* Called for each PCI bus in the system when it's probed */
	void (pcibios_fixup_bus)(struct pci_bus );

	/* Called when pci_enable_device() is called (initial=0) or
	* when a device with no assigned resource is found (initial=1).
	* Returns 0 to allow assignment/enabling of the device. */
	int (pcibios_enable_device_hook)(struct pci_dev , int initial);

	/* For interrupt routing */
	unsigned char (pci_swizzle)(struct pci_dev , unsigned char *);
	int (pci_map_irq)(struct pci_dev , unsigned char, unsigned char);

	/* Called in indirect_* to avoid touching devices */
	int (*pci_exclude_device)(unsigned char, unsigned char);

	/* Called at then very end of pcibios_init() */
	void (*pcibios_after_init)(void);

	/* this is for modules, since _machine can be a define -- Cort */
	int ppc_machine;

	#ifdef CONFIG_KEXEC
	/* Called to shutdown machine specific hardware not already controlled
	* by other drivers.
	* XXX Should we move this one out of kexec scope?
	*/
	void (*machine_shutdown)(void);

	/* Called to do the minimal shutdown needed to run a kexec'd kernel
	* to run successfully.
	* XXX Should we move this one out of kexec scope?
	*/
	void (*machine_crash_shutdown)(void);

	/* Called to do what every setup is needed on image and the
	* reboot code buffer. Returns 0 on success.
	* Provide your own (maybe dummy) implementation if your platform
	* claims to support kexec.
	*/
	int (machine_kexec_prepare)(struct kimage image);

	/* Called to handle any machine specific cleanup on image */
	void (machine_kexec_cleanup)(struct kimage image);

	/* Called to perform the _real_ kexec.
	* Do NOT allocate memory or fail here. We are past the point of
	* no return.
	*/
	void (machine_kexec)(struct kimage image);
	#endif /* CONFIG_KEXEC */
	#endif /* CONFIG_PPC32 */
	};

	extern void default_idle(void);
	extern void native_idle(void);

	extern struct machdep_calls ppc_md;
	extern char cmd_line[COMMAND_LINE_SIZE];

	#ifdef CONFIG_PPC_PMAC
	/*
	* Power macintoshes have either a CUDA, PMU or SMU controlling
	* system reset, power, NVRAM, RTC.
	*/
	typedef enum sys_ctrler_kind {
	SYS_CTRLER_UNKNOWN = 0,
	SYS_CTRLER_CUDA = 1,
	SYS_CTRLER_PMU = 2,
	SYS_CTRLER_SMU = 3,
	} sys_ctrler_t;
	extern sys_ctrler_t sys_ctrler;

	#endif /* CONFIG_PPC_PMAC */

	extern void setup_pci_ptrs(void);

	#ifdef CONFIG_SMP
	/* Poor default implementations */
	extern void __devinit smp_generic_give_timebase(void);
	extern void __devinit smp_generic_take_timebase(void);
	#endif /* CONFIG_SMP */


	/* Functions to produce codes on the leds.
	* The SRC code should be unique for the message category and should
	* be limited to the lower 24 bits (the upper 8 are set by these funcs),
	* and (for boot & dump) should be sorted numerically in the order
	* the events occur.
	*/
	/* Print a boot progress message. */
	void ppc64_boot_msg(unsigned int src, const char *msg);
	/* Print a termination message (print only -- does not stop the kernel) */
	void ppc64_terminate_msg(unsigned int src, const char *msg);

	static inline void log_error(char *buf, unsigned int err_type, int fatal)
	{
	if (ppc_md.log_error)
	ppc_md.log_error(buf, err_type, fatal);
	}

	#endif /* __KERNEL__ */
	#endif /* _ASM_POWERPC_MACHDEP_H */