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Commit deb9b22b authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: mach-dreamcast: Convert to sparseirq. 



Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 6eb6f983

arch/sh/Kconfig

+1 −2
Original line number Diff line number Diff line
@@ -730,8 +730,7 @@ config GUSA_RB 


config SPARSE_IRQ

	def_bool y

	depends on SUPERH32 && !SH_DREAMCAST && !SH_HIGHLANDER && \

		   !SH_RTS7751R2D

	depends on SUPERH32 && !SH_HIGHLANDER && !SH_RTS7751R2D

	help

	  This enables support for sparse irqs. This is useful in general

	  as most CPUs have a fairly sparse array of IRQ vectors, which

arch/sh/boards/mach-dreamcast/irq.c

+27 −0
Original line number Diff line number Diff line
@@ -135,3 +135,30 @@ int systemasic_irq_demux(int irq) 
	/* Not reached */

	return irq;

}



void systemasic_irq_init(void)

{

	int i, nid = cpu_to_node(boot_cpu_data);



	/* Assign all virtual IRQs to the System ASIC int. handler */

	for (i = HW_EVENT_IRQ_BASE; i < HW_EVENT_IRQ_MAX; i++) {

		unsigned int irq;



		irq = create_irq_nr(i, nid);

		if (unlikely(irq == 0)) {

			pr_err("%s: failed hooking irq %d for systemasic\n",

			       __func__, i);

			return;

		}



		if (unlikely(irq != i)) {

			pr_err("%s: got irq %d but wanted %d, bailing.\n",

			       __func__, irq, i);

			destroy_irq(irq);

			return;

		}



		set_irq_chip_and_handler(i, &systemasic_int,

					 handle_level_irq);

	}

}

arch/sh/boards/mach-dreamcast/setup.c

+1 −17
Original line number Diff line number Diff line
@@ -28,25 +28,8 @@ 
#include <asm/machvec.h>

#include <mach/sysasic.h>



extern struct irq_chip systemasic_int;

extern void aica_time_init(void);

extern int systemasic_irq_demux(int);



static void __init dreamcast_setup(char **cmdline_p)

{

	int i;



	/* Mask all hardware events */

	/* XXX */



	/* Acknowledge any previous events */

	/* XXX */



	/* Assign all virtual IRQs to the System ASIC int. handler */

	for (i = HW_EVENT_IRQ_BASE; i < HW_EVENT_IRQ_MAX; i++)

		set_irq_chip_and_handler(i, &systemasic_int,

					 handle_level_irq);



	board_time_init = aica_time_init;

}
@@ -54,4 +37,5 @@ static struct sh_machine_vector mv_dreamcast __initmv = { 
	.mv_name		= "Sega Dreamcast",

	.mv_setup		= dreamcast_setup,

	.mv_irq_demux		= systemasic_irq_demux,

	.mv_init_irq		= systemasic_irq_init,

};

arch/sh/include/mach-dreamcast/mach/sysasic.h

+5 −0
Original line number Diff line number Diff line
@@ -39,5 +39,10 @@ 


#define HW_EVENT_IRQ_MAX (HW_EVENT_IRQ_BASE + 95)



/* arch/sh/boards/mach-dreamcast/irq.c */

extern int systemasic_irq_demux(int);

extern void systemasic_irq_init(void);

extern void aica_time_init(void);



#endif /* __ASM_SH_DREAMCAST_SYSASIC_H */