From 6c664a8915f5341c2e7f1df0bb4b9b4a88f6ad77 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 9 Feb 2010 22:34:54 +0100 Subject: [PATCH] Debugging options for the DMA engine subsystem This adds Kconfig options for DEBUG and VERBOSE_DEBUG to the DMA engine subsystem, I got tired of editing the Makefile manually each time I want to debug things in here, modelled this on the debug switches for other subsystems and works like a charm when working on our DMA engines. Signed-off-by: Linus Walleij Signed-off-by: Dan Williams --- drivers/dma/Kconfig | 16 ++++++++++++++++ drivers/dma/Makefile | 7 +++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index e02d74b..1f4bbd6 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -13,6 +13,22 @@ menuconfig DMADEVICES DMA Device drivers supported by the configured arch, it may be empty in some cases. +config DMADEVICES_DEBUG + bool "DMA Engine debugging" + depends on DMADEVICES != n + help + This is an option for use by developers; most people should + say N here. This enables DMA engine core and driver debugging. + +config DMADEVICES_VDEBUG + bool "DMA Engine verbose debugging" + depends on DMADEVICES_DEBUG != n + help + This is an option for use by developers; most people should + say N here. This enables deeper (more verbose) debugging of + the DMA engine core and drivers. + + if DMADEVICES comment "DMA Devices" diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index 807053d..54112d6 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -1,3 +1,10 @@ +ifeq ($(CONFIG_DMADEVICES_DEBUG),y) + EXTRA_CFLAGS += -DDEBUG +endif +ifeq ($(CONFIG_DMADEVICES_VDEBUG),y) + EXTRA_CFLAGS += -DVERBOSE_DEBUG +endif + obj-$(CONFIG_DMA_ENGINE) += dmaengine.o obj-$(CONFIG_NET_DMA) += iovlock.o obj-$(CONFIG_DMATEST) += dmatest.o -- 2.7.4