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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2019-05-27 13:52:51 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-06-03 12:18:03 +0200 |
| commit | b7f3f047aea47d82aeb251fb38a694e6d890d139 (patch) | |
| tree | e0046061ec5ba7a4fbe48f330e00fdcb6934ec34 /drivers/iommu/ipmmu-vmsa.c | |
| parent | b43e0d8a458cf267c98f914a4e0a4cafe2e8fd76 (diff) | |
| download | linux-b7f3f047aea47d82aeb251fb38a694e6d890d139.tar.bz2 | |
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 <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/ipmmu-vmsa.c')
| -rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 87acf86f295f..3fa57627b1e3 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); |