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[MIPS] Add GENERIC_HARDIRQS_NO__DO_IRQ for i8259 users
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Now that i8259A_chip uses new irq flow handler select
GENERIC_HARDIRQS_NO__DO_IRQ on some more platforms.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Atsushi Nemoto authored and Ralf Baechle committed Dec 9, 2006
1 parent ed99e2b commit 9fd32cf
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Showing 4 changed files with 9 additions and 38 deletions.
6 changes: 6 additions & 0 deletions arch/mips/Kconfig
View file
Original file line number Diff line number Diff line change
Expand Up @@ -165,6 +165,7 @@ config MIPS_COBALT
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ

config MACH_DECSTATION
bool "DECstations"
Expand Down Expand Up @@ -225,6 +226,7 @@ config MACH_JAZZ
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
select SYS_SUPPORTS_100HZ
select GENERIC_HARDIRQS_NO__DO_IRQ
help
This a family of machines based on the MIPS R4030 chipset which was
used by several vendors to build RISC/os and Windows NT workstations.
Expand Down Expand Up @@ -482,6 +484,7 @@ config MACH_VR41XX
select SYS_HAS_CPU_VR41XX
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
select GENERIC_HARDIRQS_NO__DO_IRQ

config PMC_YOSEMITE
bool "PMC-Sierra Yosemite eval board"
Expand Down Expand Up @@ -515,6 +518,7 @@ config QEMU
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_LITTLE_ENDIAN
select ARCH_SPARSEMEM_ENABLE
select GENERIC_HARDIRQS_NO__DO_IRQ
help
Qemu is a software emulator which among other architectures also
can simulate a MIPS32 4Kc system. This patch adds support for the
Expand Down Expand Up @@ -754,6 +758,7 @@ config TOSHIBA_RBTX4927
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select TOSHIBA_BOARDS
select GENERIC_HARDIRQS_NO__DO_IRQ
help
This Toshiba board is based on the TX4927 processor. Say Y here to
support this machine type
Expand All @@ -773,6 +778,7 @@ config TOSHIBA_RBTX4938
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_BIG_ENDIAN
select TOSHIBA_BOARDS
select GENERIC_HARDIRQS_NO__DO_IRQ
help
This Toshiba board is based on the TX4938 processor. Say Y here to
support this machine type
Expand Down
27 changes: 2 additions & 25 deletions arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -158,7 +158,6 @@ JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthB
#define TOSHIBA_RBTX4927_IRQ_ISA_ENABLE ( 1 << 23 )
#define TOSHIBA_RBTX4927_IRQ_ISA_DISABLE ( 1 << 24 )
#define TOSHIBA_RBTX4927_IRQ_ISA_MASK ( 1 << 25 )
#define TOSHIBA_RBTX4927_IRQ_ISA_ENDIRQ ( 1 << 26 )

#define TOSHIBA_RBTX4927_SETUP_ALL 0xffffffff
#endif
Expand All @@ -175,7 +174,6 @@ static const u32 toshiba_rbtx4927_irq_debug_flag =
// | TOSHIBA_RBTX4927_IRQ_ISA_ENABLE
// | TOSHIBA_RBTX4927_IRQ_ISA_DISABLE
// | TOSHIBA_RBTX4927_IRQ_ISA_MASK
// | TOSHIBA_RBTX4927_IRQ_ISA_ENDIRQ
);
#endif

Expand Down Expand Up @@ -226,7 +224,6 @@ static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_enable(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_disable(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_end(unsigned int irq);
#endif

#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
Expand All @@ -249,7 +246,6 @@ static struct irq_chip toshiba_rbtx4927_irq_isa_type = {
.mask = toshiba_rbtx4927_irq_isa_disable,
.mask_ack = toshiba_rbtx4927_irq_isa_mask_and_ack,
.unmask = toshiba_rbtx4927_irq_isa_enable,
.end = toshiba_rbtx4927_irq_isa_end,
};
#endif

Expand Down Expand Up @@ -402,7 +398,8 @@ static void __init toshiba_rbtx4927_irq_isa_init(void)

for (i = TOSHIBA_RBTX4927_IRQ_ISA_BEG;
i <= TOSHIBA_RBTX4927_IRQ_ISA_END; i++)
set_irq_chip(i, &toshiba_rbtx4927_irq_isa_type);
set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_isa_type,
handle_level_irq);

setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC,
&toshiba_rbtx4927_irq_isa_master);
Expand Down Expand Up @@ -470,26 +467,6 @@ static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq)
#endif


#ifdef CONFIG_TOSHIBA_FPCIB0
static void toshiba_rbtx4927_irq_isa_end(unsigned int irq)
{
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_ENDIRQ,
"irq=%d\n", irq);

if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
|| irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
"bad irq=%d\n", irq);
panic("\n");
}

if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
toshiba_rbtx4927_irq_isa_enable(irq);
}
}
#endif


void __init arch_init_irq(void)
{
extern void tx4927_irq_init(void);
Expand Down
5 changes: 0 additions & 5 deletions arch/mips/vr41xx/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@ config CASIO_E55
select ISA
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ

config IBM_WORKPAD
bool "Support for IBM WorkPad z50"
Expand All @@ -16,7 +15,6 @@ config IBM_WORKPAD
select ISA
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ

config NEC_CMBVR4133
bool "Support for NEC CMB-VR4133"
Expand All @@ -41,7 +39,6 @@ config TANBAC_TB022X
select IRQ_CPU
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ
help
The TANBAC VR4131 multichip module(TB0225) and
the TANBAC VR4131DIMM(TB0229) are MIPS-based platforms
Expand Down Expand Up @@ -74,7 +71,6 @@ config VICTOR_MPC30X
select IRQ_CPU
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ

config ZAO_CAPCELLA
bool "Support for ZAO Networks Capcella"
Expand All @@ -84,7 +80,6 @@ config ZAO_CAPCELLA
select IRQ_CPU
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select GENERIC_HARDIRQS_NO__DO_IRQ

config PCI_VR41XX
bool "Add PCI control unit support of NEC VR4100 series"
Expand Down
9 changes: 1 addition & 8 deletions arch/mips/vr41xx/nec-cmbvr4133/irq.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -45,19 +45,12 @@ static void ack_i8259_irq(unsigned int irq)
mask_and_ack_8259A(irq - I8259_IRQ_BASE);
}

static void end_i8259_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
enable_8259A_irq(irq - I8259_IRQ_BASE);
}

static struct irq_chip i8259_irq_type = {
.typename = "XT-PIC",
.ack = ack_i8259_irq,
.mask = disable_i8259_irq,
.mask_ack = ack_i8259_irq,
.unmask = enable_i8259_irq,
.end = end_i8259_irq,
};

static int i8259_get_irq_number(int irq)
Expand Down Expand Up @@ -92,7 +85,7 @@ void __init rockhopper_init_irq(void)
}

for (i = I8259_IRQ_BASE; i <= I8259_IRQ_LAST; i++)
set_irq_chip(i, &i8259_irq_type);
set_irq_chip_and_handler(i, &i8259_irq_type, handle_level_irq);

setup_irq(I8259_SLAVE_IRQ, &i8259_slave_cascade);

Expand Down

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