From 879b7a7a9b1c99920a8a5c1f5329e060b564aca6 Mon Sep 17 00:00:00 2001 From: Felix Fietkau <nbd@openwrt.org> Date: Wed, 17 Oct 2012 22:03:37 +0000 Subject: [PATCH] cns3xxx: update FIQ header file and disable RWFO Update header file appropriately and disable read for ownership Note that the FIQ support implements a workaround that provides a performance boost over the traditional upstream workaround which ensures cache lines are exclusive on driver CPU using 'read for ownership'. Signed-off-by: Tim Harvey <tharvey@gateworks.com> target/linux/cns3xxx/config-3.3 | 2 +- target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch | 9 ++++----- 2 files changed, 5 insertions(+), 6 deletions(-) SVN-Revision: 33827 --- target/linux/cns3xxx/config-3.3 | 2 +- .../cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch | 9 ++++----- 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/target/linux/cns3xxx/config-3.3 b/target/linux/cns3xxx/config-3.3 index 82f763518eb..e1c73a10af5 100644 --- a/target/linux/cns3xxx/config-3.3 +++ b/target/linux/cns3xxx/config-3.3 @@ -45,7 +45,7 @@ CONFIG_DEBUG_LL=y CONFIG_DEBUG_LL_UART_NONE=y # CONFIG_DEBUG_USER is not set CONFIG_DECOMPRESS_LZMA=y -CONFIG_DMA_CACHE_RWFO=y +# CONFIG_DMA_CACHE_RWFO is not set # CONFIG_DWC_DEBUG is not set # CONFIG_DWC_DEVICE_ONLY is not set # CONFIG_DWC_HOST_ONLY is not set diff --git a/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch b/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch index 5b1cd7cd965..7a44b45bfdd 100644 --- a/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch +++ b/target/linux/cns3xxx/patches-3.3/460-cns3xxx_fiq_support.patch @@ -65,11 +65,10 @@ obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o --- /dev/null +++ b/arch/arm/mach-cns3xxx/cns3xxx_fiq.S -@@ -0,0 +1,97 @@ +@@ -0,0 +1,96 @@ +/* -+ * linux/arch/arm/lib/floppydma.S -+ * -+ * Copyright (C) 1995, 1996 Russell King ++ * Copyright (C) 2012 Gateworks Corporation ++ * Chris Lang <clang@gateworks.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as @@ -298,7 +297,7 @@ + cpu_cache.dma_map_area = (void *)smp_dma_map_area; + cpu_cache.dma_unmap_area = (void *)smp_dma_unmap_area; + cpu_cache.dma_flush_range = (void *)smp_dma_flush_range; -+ ++ + /* * Synchronise with the boot thread. */