Hi Andreas, On Tuesday 20 May 2014 16:47:04 Andreas Herrmann wrote: > From: David Daney <[email protected]> > > CVMSEG is related to the CPU core not the SoC system. So needs to be > configurable there. > > Signed-off-by: David Daney <[email protected]> > Signed-off-by: Andreas Herrmann <[email protected]> > --- > arch/mips/cavium-octeon/Kconfig | 30 ++++++++++++++++++++---------- > 1 file changed, 20 insertions(+), 10 deletions(-) > > diff --git a/arch/mips/cavium-octeon/Kconfig > b/arch/mips/cavium-octeon/Kconfig index 227705d..c5e9975 100644 > --- a/arch/mips/cavium-octeon/Kconfig > +++ b/arch/mips/cavium-octeon/Kconfig > @@ -10,6 +10,17 @@ config CAVIUM_CN63XXP1 > non-CN63XXP1 hardware, so it is recommended to select "n" > unless it is known the workarounds are needed. > > +config CAVIUM_OCTEON_CVMSEG_SIZE > + int "Number of L1 cache lines reserved for CVMSEG memory" > + range 0 54 > + default 1 > + help > + CVMSEG LM is a segment that accesses portions of the dcache as a > + local memory; the larger CVMSEG is, the smaller the cache is. > + This selects the size of CVMSEG LM, which is in cache blocks. The > + legally range is from zero to 54 cache blocks (i.e. CVMSEG LM is > + between zero and 6192 bytes). > + > endif # CPU_CAVIUM_OCTEON > > if CAVIUM_OCTEON_SOC > @@ -23,16 +34,16 @@ config CAVIUM_OCTEON_2ND_KERNEL > with this option to be run at the same time as one built without this > option. > > -config CAVIUM_OCTEON_CVMSEG_SIZE > - int "Number of L1 cache lines reserved for CVMSEG memory" > - range 0 54 > - default 1 > +config CAVIUM_OCTEON_HW_FIX_UNALIGNED > + bool "Enable hardware fixups of unaligned loads and stores" > + default "y"
Is adding CAVIUM_OCTEON_HW_FIX_UNALIGNED in this patch intentional? It seems unrelated. Cheers James > help > - CVMSEG LM is a segment that accesses portions of the dcache as a > - local memory; the larger CVMSEG is, the smaller the cache is. > - This selects the size of CVMSEG LM, which is in cache blocks. The > - legally range is from zero to 54 cache blocks (i.e. CVMSEG LM is > - between zero and 6192 bytes). > + Configure the Octeon hardware to automatically fix unaligned loads > + and stores. Normally unaligned accesses are fixed using a kernel > + exception handler. This option enables the hardware automatic fixups, > + which requires only an extra 3 cycles. Disable this option if you > + are running code that relies on address exceptions on unaligned > + accesses. > > config CAVIUM_OCTEON_LOCK_L2 > bool "Lock often used kernel code in the L2" > @@ -86,7 +97,6 @@ config SWIOTLB > select IOMMU_HELPER > select NEED_SG_DMA_LENGTH > > - > config OCTEON_ILM > tristate "Module to measure interrupt latency using Octeon CIU Timer" > help
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