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Groups > linux.kernel > #1698509
| From | Tao Huang <huangtao@rock-chips.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] ARM: rockchip: enable ZONE_DMA for non 64-bit capable peripherals |
| Date | 2017-07-28 08:50 +0200 |
| Message-ID | <u87fY-dv-23@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Most IP cores on ARM Rockchip platforms can only address 32 bits of physical memory for DMA. Thus ZONE_DMA should be enabled when LPAE is activated. Signed-off-by: Tao Huang <huangtao@rock-chips.com> --- arch/arm/mach-rockchip/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig index 9ad84cd01ba0..fafd3d7f9f8c 100644 --- a/arch/arm/mach-rockchip/Kconfig +++ b/arch/arm/mach-rockchip/Kconfig @@ -16,6 +16,7 @@ config ARCH_ROCKCHIP select ROCKCHIP_TIMER select ARM_GLOBAL_TIMER select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK + select ZONE_DMA if ARM_LPAE help Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs containing the RK2928, RK30xx and RK31xx series. -- 2.7.4
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[PATCH] ARM: rockchip: enable ZONE_DMA for non 64-bit capable peripherals Tao Huang <huangtao@rock-chips.com> - 2017-07-28 08:50 +0200
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