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bus: ARM CCN PMU driver

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Driver providing perf backend for ARM Cache Coherent Network
interconnect. Supports counting all hardware events and crosspoint
watchpoints.

Currently works with CCN-504 only, although there should be
no changes required for CCN-508 (just impossible to test it now).

Signed-off-by: Pawel Moll <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
This commit is contained in:
Pawel Moll 2014-07-22 18:32:59 +01:00 • committed by Arnd Bergmann
commit a33b0daab7
5 changed files with 1473 additions and 1 deletions
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7
drivers/bus/Kconfig
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@ -50,6 +50,13 @@ config ARM_CCI
Driver supporting the CCI cache coherent interconnect for ARM
platforms.
config ARM_CCN
bool "ARM CCN driver support"
depends on ARM || ARM64
help
PMU (perf) driver supporting the ARM CCN (Cache Coherent Network)
interconnect.
config VEXPRESS_CONFIG
bool "Versatile Express configuration bus"
default y if ARCH_VEXPRESS

4
drivers/bus/Makefile
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@ -9,7 +9,9 @@ obj-$(CONFIG_OMAP_OCP2SCP) += omap-ocp2scp.o
# Interconnect bus driver for OMAP SoCs.
obj-$(CONFIG_OMAP_INTERCONNECT) += omap_l3_smx.o omap_l3_noc.o
# CCI cache coherent interconnect for ARM platforms
# Interconnect bus drivers for ARM platforms
obj-$(CONFIG_ARM_CCI) += arm-cci.o
obj-$(CONFIG_ARM_CCN) += arm-ccn.o
obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress-config.o

1390
drivers/bus/arm-ccn.c Normal file
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