arch/sparc/kernel/irq.h

   1 #include <linux/platform_device.h>
   2
   3 #include <asm/btfixup.h>
   4
   5 /* sun4m specific type definitions */
   6
   7 /* This maps direct to CPU specific interrupt registers */
   8 struct sun4m_irq_percpu {
   9         u32     pending;
  10         u32     clear;
  11         u32     set;
  12 };
  13
  14 /* This maps direct to global interrupt registers */
  15 struct sun4m_irq_global {
  16         u32     pending;
  17         u32     mask;
  18         u32     mask_clear;
  19         u32     mask_set;
  20         u32     interrupt_target;
  21 };
  22
  23 extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
  24 extern struct sun4m_irq_global __iomem *sun4m_irq_global;
  25
  26 /*
  27  * Platform specific irq configuration
  28  * The individual platforms assign their platform
  29  * specifics in their init functions.
  30  */
  31 struct sparc_irq_config {
  32         void (*init_timers)(irq_handler_t);
  33         unsigned int (*build_device_irq)(struct platform_device *op,
  34                                          unsigned int real_irq);
  35 };
  36 extern struct sparc_irq_config sparc_irq_config;
  37
  38
  39 /* Dave Redman (djhr@tadpole.co.uk)
  40  * changed these to function pointers.. it saves cycles and will allow
  41  * the irq dependencies to be split into different files at a later date
  42  * sun4c_irq.c, sun4m_irq.c etc so we could reduce the kernel size.
  43  * Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  44  * Changed these to btfixup entities... It saves cycles :)
  45  */
  46
  47 BTFIXUPDEF_CALL(void, disable_irq, unsigned int)
  48 BTFIXUPDEF_CALL(void, enable_irq, unsigned int)
  49 BTFIXUPDEF_CALL(void, disable_pil_irq, unsigned int)
  50 BTFIXUPDEF_CALL(void, enable_pil_irq, unsigned int)
  51 BTFIXUPDEF_CALL(void, clear_clock_irq, void)
  52 BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
  53
  54 static inline void __disable_irq(unsigned int irq)
  55 {
  56         BTFIXUP_CALL(disable_irq)(irq);
  57 }
  58
  59 static inline void __enable_irq(unsigned int irq)
  60 {
  61         BTFIXUP_CALL(enable_irq)(irq);
  62 }
  63
  64 static inline void disable_pil_irq(unsigned int irq)
  65 {
  66         BTFIXUP_CALL(disable_pil_irq)(irq);
  67 }
  68
  69 static inline void enable_pil_irq(unsigned int irq)
  70 {
  71         BTFIXUP_CALL(enable_pil_irq)(irq);
  72 }
  73
  74 static inline void clear_clock_irq(void)
  75 {
  76         BTFIXUP_CALL(clear_clock_irq)();
  77 }
  78
  79 static inline void load_profile_irq(int cpu, int limit)
  80 {
  81         BTFIXUP_CALL(load_profile_irq)(cpu, limit);
  82 }
  83
  84 #ifdef CONFIG_SMP
  85 BTFIXUPDEF_CALL(void, set_cpu_int, int, int)
  86 BTFIXUPDEF_CALL(void, clear_cpu_int, int, int)
  87 BTFIXUPDEF_CALL(void, set_irq_udt, int)
  88
  89 #define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level)
  90 #define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level)
  91 #define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu)
  92 #endif