linux-kernel - [PATCH] ARM: rockchip: select ARCH_DMA_ADDR_T

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Message-Id: <1501581355-3538-1-git-send-email-huangtao@rock-chips.com>
Date:   Tue,  1 Aug 2017 17:55:55 +0800
From:   Tao Huang <huangtao@...k-chips.com>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Tao Huang <huangtao@...k-chips.com>
Subject: [PATCH] ARM: rockchip: select ARCH_DMA_ADDR_T_64BIT for LPAE

Rockchip RK3288 has some 64-bit capable DMA and therefore needs
dma_addr_t to be a 64-bit size. One user is the Mali GPU.

Signed-off-by: Tao Huang <huangtao@...k-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..240354963158 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -3,6 +3,7 @@ config ARCH_ROCKCHIP
 	depends on ARCH_MULTI_V7
 	select PINCTRL
 	select PINCTRL_ROCKCHIP
+	select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
 	select ARCH_HAS_RESET_CONTROLLER
 	select ARM_AMBA
 	select ARM_GIC
-- 
2.7.4