diff options
| author |   Kyle Moffett <Kyle.D.Moffett@boeing.com> | 2011-12-22 10:19:12 +0000 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-02-23 10:49:59 +1100 |
| commit | 5019609fce965dbdc66a7d947385fe92ca522231 (patch) | |
| tree | 00678069c54aa7dbdf7ce32b927844957ead65f5 /arch/powerpc/platforms/embedded6xx | |
| parent | fsl/mpic: Create and document the "single-cpu-affinity" device-tree flag (diff) | |
| download | linux-dev-5019609fce965dbdc66a7d947385fe92ca522231.tar.xz linux-dev-5019609fce965dbdc66a7d947385fe92ca522231.zip | |
powerpc/mpic: Remove MPIC_BROKEN_FRR_NIRQS and duplicate irq_count
The mpic->irq_count variable is only used as a software error-checking
limit to determine whether or not an IRQ number is valid. In board code
which does not manually specify an IRQ count to mpic_alloc(), i.e. 0, it
is automatically detected from the number of ISUs and the ISU size.
In practice, all hardware ends up with irq_count == num_sources, so all
of the runtime checks on mpic->irq_count should just check the value of
mpic->num_sources instead.
When platform hardware does not correctly report the number of IRQs,
which only happens on the MPC85xx/MPC86xx, the MPIC_BROKEN_FRR_NIRQS
flag is used to override the detected value of num_sources with the
manual irq_count parameter. Since there's no need to manually specify
the number of IRQs except in this case, the extra flag can be eliminated
and the test changed to "irq_count != 0".
Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/embedded6xx')
| -rw-r--r-- | arch/powerpc/platforms/embedded6xx/holly.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/embedded6xx/linkstation.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/embedded6xx/storcenter.c | 2 |
4 files changed, 4 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/embedded6xx/holly.c b/arch/powerpc/platforms/embedded6xx/holly.c index 9cfcf20c0560..d7727de85d57 100644 --- a/arch/powerpc/platforms/embedded6xx/holly.c +++ b/arch/powerpc/platforms/embedded6xx/holly.c @@ -157,8 +157,7 @@ static void __init holly_init_IRQ(void) mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | MPIC_WANTS_RESET | MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108, - 24, - NR_IRQS-4, /* num_sources used */ + 24, 0, "Tsi108_PIC"); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c index bcfad92c9cec..9479f4ebe1bc 100644 --- a/arch/powerpc/platforms/embedded6xx/linkstation.c +++ b/arch/powerpc/platforms/embedded6xx/linkstation.c @@ -83,7 +83,7 @@ static void __init linkstation_init_IRQ(void) struct mpic *mpic; mpic = mpic_alloc(NULL, 0, MPIC_WANTS_RESET, - 4, 32, " EPIC "); + 4, 0, " EPIC "); BUG_ON(mpic == NULL); /* PCI IRQs */ diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c index f3350d786f5b..90acb5449163 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -111,8 +111,7 @@ static void __init mpc7448_hpc2_init_IRQ(void) mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | MPIC_WANTS_RESET | MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108, - 24, - NR_IRQS-4, /* num_sources used */ + 24, 0, "Tsi108_PIC"); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c index afa638834965..451dce4edccd 100644 --- a/arch/powerpc/platforms/embedded6xx/storcenter.c +++ b/arch/powerpc/platforms/embedded6xx/storcenter.c @@ -85,7 +85,7 @@ static void __init storcenter_init_IRQ(void) struct mpic *mpic; mpic = mpic_alloc(NULL, 0, MPIC_WANTS_RESET, - 16, 32, " OpenPIC "); + 16, 0, " OpenPIC "); BUG_ON(mpic == NULL); /* |