diff options
| author | Chandrakala Chavva <cchavva@caviumnetworks.com> | 2011-02-18 00:57:52 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-05-19 12:55:49 +0400 |
| commit | 7716e6548abed1582a7759666e79d5c612a906c7 (patch) | |
| tree | ebd12144faf525408ed82f6415804b02ee712440 | |
| parent | b32ee693eb106172f89639acff88dc8fee8ba3e2 (diff) | |
| download | linux-7716e6548abed1582a7759666e79d5c612a906c7.tar.xz | |
Octeon: Fix interrupt irq settings for performance counters.
Octeon uses different interrupt irq for timer and performance counters.
Set CvmCtl[IPPCI] to correct irq value very early.
Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Cc: Chandrakala Chavva <cchavva@caviumnetworks.com>
Patchwork: https://patchwork.linux-mips.org/patch/2085/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/cavium-octeon/setup.c | 7 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h | 5 |
2 files changed, 5 insertions, 7 deletions
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index 0707fae3f0ee..2d9028f1474c 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -288,7 +288,6 @@ void octeon_user_io_init(void) union octeon_cvmemctl cvmmemctl; union cvmx_iob_fau_timeout fau_timeout; union cvmx_pow_nw_tim nm_tim; - uint64_t cvmctl; /* Get the current settings for CP0_CVMMEMCTL_REG */ cvmmemctl.u64 = read_c0_cvmmemctl(); @@ -392,12 +391,6 @@ void octeon_user_io_init(void) CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE, CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE * 128); - /* Move the performance counter interrupts to IRQ 6 */ - cvmctl = read_c0_cvmctl(); - cvmctl &= ~(7 << 7); - cvmctl |= 6 << 7; - write_c0_cvmctl(cvmctl); - /* Set a default for the hardware timeouts */ fau_timeout.u64 = 0; fau_timeout.s.tout_val = 0xfff; diff --git a/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h b/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h index 0b2b5eb22e9b..dedef7d2b01f 100644 --- a/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h +++ b/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h @@ -63,6 +63,11 @@ # CN30XX Disable instruction prefetching or v0, v0, 0x2000 skip: + # First clear off CvmCtl[IPPCI] bit and move the performance + # counters interrupt to IRQ 6 + li v1, ~(7 << 7) + and v0, v0, v1 + ori v0, v0, (6 << 7) # Write the cavium control register dmtc0 v0, CP0_CVMCTL_REG sync |