Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/arch/mips/cavium-octeon/Kconfig b/arch/mips/cavium-octeon/Kconfig
new file mode 100644
index 000000000..4984e462b
--- /dev/null
+++ b/arch/mips/cavium-octeon/Kconfig
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0
+if CPU_CAVIUM_OCTEON
+
+config CAVIUM_CN63XXP1
+	bool "Enable CN63XXP1 errata workarounds"
+	default "n"
+	help
+	  The CN63XXP1 chip requires build time workarounds to
+	  function reliably, select this option to enable them.  These
+	  workarounds will cause a slight decrease in performance on
+	  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
+
+config CAVIUM_OCTEON_LOCK_L2
+	bool "Lock often used kernel code in the L2"
+	default "y"
+	help
+	  Enable locking parts of the kernel into the L2 cache.
+
+config CAVIUM_OCTEON_LOCK_L2_TLB
+	bool "Lock the TLB handler in L2"
+	depends on CAVIUM_OCTEON_LOCK_L2
+	default "y"
+	help
+	  Lock the low level TLB fast path into L2.
+
+config CAVIUM_OCTEON_LOCK_L2_EXCEPTION
+	bool "Lock the exception handler in L2"
+	depends on CAVIUM_OCTEON_LOCK_L2
+	default "y"
+	help
+	  Lock the low level exception handler into L2.
+
+config CAVIUM_OCTEON_LOCK_L2_LOW_LEVEL_INTERRUPT
+	bool "Lock the interrupt handler in L2"
+	depends on CAVIUM_OCTEON_LOCK_L2
+	default "y"
+	help
+	  Lock the low level interrupt handler into L2.
+
+config CAVIUM_OCTEON_LOCK_L2_INTERRUPT
+	bool "Lock the 2nd level interrupt handler in L2"
+	depends on CAVIUM_OCTEON_LOCK_L2
+	default "y"
+	help
+	  Lock the 2nd level interrupt handler in L2.
+
+config CAVIUM_OCTEON_LOCK_L2_MEMCPY
+	bool "Lock memcpy() in L2"
+	depends on CAVIUM_OCTEON_LOCK_L2
+	default "y"
+	help
+	  Lock the kernel's implementation of memcpy() into L2.
+
+config OCTEON_ILM
+	tristate "Module to measure interrupt latency using Octeon CIU Timer"
+	help
+	  This driver is a module to measure interrupt latency using the
+	  the CIU Timers on Octeon.
+
+	  To compile this driver as a module, choose M here.  The module
+	  will be called octeon-ilm
+
+endif # CAVIUM_OCTEON_SOC