mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-19 17:11:03 +00:00
4ba22b16bb
I ended up renaming set_cpu_int to send_ipi to be consistent all way around. send_ipi was moved to the *_smp.c files so we could call the relevant method direct, without any _ops indirection. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
111 lines
3 KiB
C
111 lines
3 KiB
C
#include <linux/platform_device.h>
|
|
|
|
#include <asm/btfixup.h>
|
|
#include <asm/cpu_type.h>
|
|
|
|
struct irq_bucket {
|
|
struct irq_bucket *next;
|
|
unsigned int real_irq;
|
|
unsigned int irq;
|
|
unsigned int pil;
|
|
};
|
|
|
|
#define SUN4M_HARD_INT(x) (0x000000001 << (x))
|
|
#define SUN4M_SOFT_INT(x) (0x000010000 << (x))
|
|
|
|
#define SUN4D_MAX_BOARD 10
|
|
#define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5)
|
|
|
|
/* Map between the irq identifier used in hw to the
|
|
* irq_bucket. The map is sufficient large to hold
|
|
* the sun4d hw identifiers.
|
|
*/
|
|
extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ];
|
|
|
|
|
|
/* sun4m specific type definitions */
|
|
|
|
/* This maps direct to CPU specific interrupt registers */
|
|
struct sun4m_irq_percpu {
|
|
u32 pending;
|
|
u32 clear;
|
|
u32 set;
|
|
};
|
|
|
|
/* This maps direct to global interrupt registers */
|
|
struct sun4m_irq_global {
|
|
u32 pending;
|
|
u32 mask;
|
|
u32 mask_clear;
|
|
u32 mask_set;
|
|
u32 interrupt_target;
|
|
};
|
|
|
|
extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
|
|
extern struct sun4m_irq_global __iomem *sun4m_irq_global;
|
|
|
|
/* The following definitions describe the individual platform features: */
|
|
#define FEAT_L10_CLOCKSOURCE (1 << 0) /* L10 timer is used as a clocksource */
|
|
#define FEAT_L10_CLOCKEVENT (1 << 1) /* L10 timer is used as a clockevent */
|
|
#define FEAT_L14_ONESHOT (1 << 2) /* L14 timer clockevent can oneshot */
|
|
|
|
/*
|
|
* Platform specific configuration
|
|
* The individual platforms assign their platform
|
|
* specifics in their init functions.
|
|
*/
|
|
struct sparc_config {
|
|
void (*init_timers)(void);
|
|
unsigned int (*build_device_irq)(struct platform_device *op,
|
|
unsigned int real_irq);
|
|
|
|
/* generic clockevent features - see FEAT_* above */
|
|
int features;
|
|
|
|
/* clock rate used for clock event timer */
|
|
int clock_rate;
|
|
|
|
/* one period for clock source timer */
|
|
unsigned int cs_period;
|
|
|
|
/* function to obtain offsett for cs period */
|
|
unsigned int (*get_cycles_offset)(void);
|
|
};
|
|
extern struct sparc_config sparc_config;
|
|
|
|
unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
|
|
void irq_link(unsigned int irq);
|
|
void irq_unlink(unsigned int irq);
|
|
void handler_irq(unsigned int pil, struct pt_regs *regs);
|
|
|
|
/* Dave Redman (djhr@tadpole.co.uk)
|
|
* changed these to function pointers.. it saves cycles and will allow
|
|
* the irq dependencies to be split into different files at a later date
|
|
* sun4m_irq.c etc so we could reduce the kernel size.
|
|
* Jakub Jelinek (jj@sunsite.mff.cuni.cz)
|
|
* Changed these to btfixup entities... It saves cycles :)
|
|
*/
|
|
|
|
BTFIXUPDEF_CALL(void, clear_clock_irq, void)
|
|
BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
|
|
|
|
static inline void clear_clock_irq(void)
|
|
{
|
|
BTFIXUP_CALL(clear_clock_irq)();
|
|
}
|
|
|
|
static inline void load_profile_irq(int cpu, int limit)
|
|
{
|
|
BTFIXUP_CALL(load_profile_irq)(cpu, limit);
|
|
}
|
|
|
|
unsigned long leon_get_irqmask(unsigned int irq);
|
|
|
|
#ifdef CONFIG_SMP
|
|
|
|
/* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
|
|
#define SUN4D_IPI_IRQ 13
|
|
|
|
extern void sun4d_ipi_interrupt(void);
|
|
|
|
#endif
|