Commit 129a3b88 authored by Yong Wu's avatar Yong Wu Committed by Joerg Roedel
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iommu/mediatek: Add 12G~16G support for multi domains 



In mt8192, we preassign 0-4G; 4G-8G; 8G-12G for different multimedia
engines. This depends on the "dma-ranges=" in the iommu consumer's dtsi
node.

Adds 12G-16G region here. and reword the previous comment. we don't limit
which master locate in which region.

CCU still is 8G-12G. Don't change it here.

Signed-off-by: default avatarYong Wu <yong.wu@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20220503071427.2285-11-yong.wu@mediatek.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 9e3a2a64

drivers/iommu/mtk_iommu.c

+5 −3
Original line number Diff line number Diff line
@@ -180,10 +180,12 @@ static const struct mtk_iommu_iova_region single_domain[] = { 
};



static const struct mtk_iommu_iova_region mt8192_multi_dom[] = {

	{ .iova_base = 0x0,		.size = SZ_4G},		/* disp: 0 ~ 4G */

	{ .iova_base = 0x0,		.size = SZ_4G},		/* 0 ~ 4G */

	#if IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT)

	{ .iova_base = SZ_4G,		.size = SZ_4G},		/* vdec: 4G ~ 8G */

	{ .iova_base = SZ_4G * 2,	.size = SZ_4G},		/* CAM/MDP: 8G ~ 12G */

	{ .iova_base = SZ_4G,		.size = SZ_4G},		/* 4G ~ 8G */

	{ .iova_base = SZ_4G * 2,	.size = SZ_4G},		/* 8G ~ 12G */

	{ .iova_base = SZ_4G * 3,	.size = SZ_4G},		/* 12G ~ 16G */



	{ .iova_base = 0x240000000ULL,	.size = 0x4000000},	/* CCU0 */

	{ .iova_base = 0x244000000ULL,	.size = 0x4000000},	/* CCU1 */

	#endif