Ian Munsie 5100a9d644 cxl: Disable secondary hash in segment table ... This patch simplifies the process of finding a free segment table entry by disabling the secondary hash. This reduces the number of possible entries in the segment table for a given address from 16 to 8. Due to the large segment sizes we use it is extremely unlikely that the secondary hash would ever have been used in practice, so this should not have any negative impacts and may even improve performance due to the reduced number of comparisons that software & hardware need to perform. This patch clears the SC bit in the hardware's state register (CXL_PSL_SR_An) to disable the secondary hash in the hardware since we can no longer fill out entries using it. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2014-10-28 19:52:07 +11:00
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base.c
context.c
cxl.h
debugfs.c
fault.c	cxl: Disable secondary hash in segment table	2014-10-28 19:52:07 +11:00
file.c	cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking	2014-10-09 11:29:57 +11:00
irq.c
Kconfig	cxl: Add driver to Kbuild and Makefiles	2014-10-08 20:15:58 +11:00
main.c
Makefile	cxl: Add driver to Kbuild and Makefiles	2014-10-08 20:15:58 +11:00
native.c	cxl: Disable secondary hash in segment table	2014-10-28 19:52:07 +11:00
pci.c
sysfs.c