From: Geert Uytterhoeven Date: Mon, 27 May 2019 11:52:51 +0000 (+0200) Subject: iommu/ipmmu-vmsa: Move num_utlbs to SoC-specific features X-Git-Tag: v5.15~6023^2^3~2^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b7f3f047aea47d82aeb251fb38a694e6d890d139;p=platform%2Fkernel%2Flinux-starfive.git iommu/ipmmu-vmsa: Move num_utlbs to SoC-specific features The maximum number of micro-TLBs per IPMMU instance is not fixed, but depends on the SoC type. Hence move it from struct ipmmu_vmsa_device to struct ipmmu_features, and set up the correct value for both R-Car Gen2 and Gen3 SoCs. Note that currently no code uses this value. Signed-off-by: Geert Uytterhoeven Reviewed-by: Laurent Pinchart Reviewed-by: Simon Horman Reviewed-by: Yoshihiro Shimoda Tested-by: Yoshihiro Shimoda Signed-off-by: Joerg Roedel --- diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 87acf86..3fa5762 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -42,6 +42,7 @@ struct ipmmu_features { bool use_ns_alias_offset; bool has_cache_leaf_nodes; unsigned int number_of_contexts; + unsigned int num_utlbs; bool setup_imbuscr; bool twobit_imttbcr_sl0; bool reserved_context; @@ -53,7 +54,6 @@ struct ipmmu_vmsa_device { struct iommu_device iommu; struct ipmmu_vmsa_device *root; const struct ipmmu_features *features; - unsigned int num_utlbs; unsigned int num_ctx; spinlock_t lock; /* Protects ctx and domains[] */ DECLARE_BITMAP(ctx, IPMMU_CTX_MAX); @@ -972,6 +972,7 @@ static const struct ipmmu_features ipmmu_features_default = { .use_ns_alias_offset = true, .has_cache_leaf_nodes = false, .number_of_contexts = 1, /* software only tested with one context */ + .num_utlbs = 32, .setup_imbuscr = true, .twobit_imttbcr_sl0 = false, .reserved_context = false, @@ -981,6 +982,7 @@ static const struct ipmmu_features ipmmu_features_rcar_gen3 = { .use_ns_alias_offset = false, .has_cache_leaf_nodes = true, .number_of_contexts = 8, + .num_utlbs = 48, .setup_imbuscr = false, .twobit_imttbcr_sl0 = true, .reserved_context = true, @@ -1033,7 +1035,6 @@ static int ipmmu_probe(struct platform_device *pdev) } mmu->dev = &pdev->dev; - mmu->num_utlbs = 48; spin_lock_init(&mmu->lock); bitmap_zero(mmu->ctx, IPMMU_CTX_MAX); mmu->features = of_device_get_match_data(&pdev->dev);