summaryrefslogtreecommitdiff
path: root/lib/Kconfig
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-05 20:07:23 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-05 20:07:23 +0300
commit3bd6e5854bf9bb5436d6b533e206561839e3b284 (patch)
tree2d788271309efc414e3bca6a07ff66e920b0d657 /lib/Kconfig
parentfad235ed4338749a66ddf32971d4042b9ef47f44 (diff)
parent6f05e014b96c8846cdc39acdf10bbdbafb9c78a0 (diff)
downloadlinux-3bd6e5854bf9bb5436d6b533e206561839e3b284.tar.xz
Merge tag 'asm-generic-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann: "There are three independent sets of changes: - Sai Prakash Ranjan adds tracing support to the asm-generic version of the MMIO accessors, which is intended to help understand problems with device drivers and has been part of Qualcomm's vendor kernels for many years - A patch from Sebastian Siewior to rework the handling of IRQ stacks in softirqs across architectures, which is needed for enabling PREEMPT_RT - The last patch to remove the CONFIG_VIRT_TO_BUS option and some of the code behind that, after the last users of this old interface made it in through the netdev, scsi, media and staging trees" * tag 'asm-generic-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: uapi: asm-generic: fcntl: Fix typo 'the the' in comment arch/*/: remove CONFIG_VIRT_TO_BUS soc: qcom: geni: Disable MMIO tracing for GENI SE serial: qcom_geni_serial: Disable MMIO tracing for geni serial asm-generic/io: Add logging support for MMIO accessors KVM: arm64: Add a flag to disable MMIO trace for nVHE KVM lib: Add register read/write tracing support drm/meson: Fix overflow implicit truncation warnings irqchip/tegra: Fix overflow implicit truncation warnings coresight: etm4x: Use asm-generic IO memory barriers arm64: io: Use asm-generic high level MMIO accessors arch/*: Disable softirq stacks on PREEMPT_RT.
Diffstat (limited to 'lib/Kconfig')
-rw-r--r--lib/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index eaaad4d85bf2..55c27e1ec9cb 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -118,6 +118,13 @@ config INDIRECT_IOMEM_FALLBACK
mmio accesses when the IO memory address is not a registered
emulated region.
+config TRACE_MMIO_ACCESS
+ bool "Register read/write tracing"
+ depends on TRACING && ARCH_HAVE_TRACE_MMIO_ACCESS
+ help
+ Create tracepoints for MMIO read/write operations. These trace events
+ can be used for logging all MMIO read/write operations.
+
source "lib/crypto/Kconfig"
config LIB_MEMNEQ