Commit ba40f9dc authored by Robin Murphy's avatar Robin Murphy Committed by Joerg Roedel
Browse files

iommu/mediatek-v1: Support COMPILE_TEST 



Add COMPILE_TEST support to Mediatek v1 so I have less chance of
breaking it again in future. This just needs the ARM dma-iommu API
stubbing out for now.

Signed-off-by: default avatarRobin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/a8d7c0b4393b360ce556f5f15e229d1e2fe73c83.1741702556.git.robin.murphy@arm.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 73d2f109

drivers/iommu/Kconfig

+1 −2
Original line number Diff line number Diff line
@@ -482,8 +482,7 @@ config MTK_IOMMU 


config MTK_IOMMU_V1

	tristate "MediaTek IOMMU Version 1 (M4U gen1) Support"

	depends on ARM

	depends on ARCH_MEDIATEK || COMPILE_TEST

	depends on (ARCH_MEDIATEK && ARM) || COMPILE_TEST

	select ARM_DMA_USE_IOMMU

	select IOMMU_API

	select MEMORY

drivers/iommu/mtk_iommu_v1.c

+10 −1
Original line number Diff line number Diff line
@@ -27,11 +27,20 @@ 
#include <linux/spinlock.h>

#include <linux/string_choices.h>

#include <asm/barrier.h>

#include <asm/dma-iommu.h>

#include <dt-bindings/memory/mtk-memory-port.h>

#include <dt-bindings/memory/mt2701-larb-port.h>

#include <soc/mediatek/smi.h>



#if defined(CONFIG_ARM)

#include <asm/dma-iommu.h>

#else

#define arm_iommu_create_mapping(...) NULL

#define arm_iommu_attach_device(...)	-ENODEV

struct dma_iommu_mapping {

	struct iommu_domain *domain;

};

#endif



#define REG_MMU_PT_BASE_ADDR			0x000



#define F_ALL_INVLD				0x2