lkml.org 
[lkml]   [2017]   [Jun]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH v4 3/3] iommu/ipmmu-vmsa: Hook up r8a7796 DT matching code
From: Magnus Damm <damm+renesas@opensource.se>

Support the r8a7796 IPMMU by sharing feature flags between
r8a7795 and r8a7796. Also update IOMMU_OF_DECLARE to hook
up the updated compat string.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---

Changes since V3:
- Added Reviewed-by from Geert - thanks!

Changes since V2:
- Updated to include white list suppport

Changes since V1:
- None

drivers/iommu/ipmmu-vmsa.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)

--- 0016/drivers/iommu/ipmmu-vmsa.c
+++ work/drivers/iommu/ipmmu-vmsa.c 2017-06-19 19:48:27.430607110 +0900
@@ -755,8 +755,9 @@ static bool ipmmu_slave_whitelist(struct
return false;
}

-static const struct soc_device_attribute soc_r8a7795[] = {
+static const struct soc_device_attribute soc_rcar_gen3[] = {
{ .soc_id = "r8a7795", },
+ { .soc_id = "r8a7796", },
{ /* sentinel */ }
};

@@ -772,7 +773,7 @@ static int ipmmu_of_xlate(struct device
}

/* For R-Car Gen3 use a white list to opt-in slave devices */
- if (soc_device_match(soc_r8a7795) && !ipmmu_slave_whitelist(dev))
+ if (soc_device_match(soc_rcar_gen3) && !ipmmu_slave_whitelist(dev))
return -ENODEV;

iommu_fwspec_add_ids(dev, spec->args, 1);
@@ -1034,7 +1035,7 @@ static const struct ipmmu_features ipmmu
.twobit_imttbcr_sl0 = false,
};

-static const struct ipmmu_features ipmmu_features_r8a7795 = {
+static const struct ipmmu_features ipmmu_features_rcar_gen3 = {
.use_ns_alias_offset = false,
.has_cache_leaf_nodes = true,
.number_of_contexts = 8,
@@ -1048,7 +1049,10 @@ static const struct of_device_id ipmmu_o
.data = &ipmmu_features_default,
}, {
.compatible = "renesas,ipmmu-r8a7795",
- .data = &ipmmu_features_r8a7795,
+ .data = &ipmmu_features_rcar_gen3,
+ }, {
+ .compatible = "renesas,ipmmu-r8a7796",
+ .data = &ipmmu_features_rcar_gen3,
}, {
/* Terminator */
},
@@ -1229,6 +1233,8 @@ IOMMU_OF_DECLARE(ipmmu_vmsa_iommu_of, "r
ipmmu_vmsa_iommu_of_setup);
IOMMU_OF_DECLARE(ipmmu_r8a7795_iommu_of, "renesas,ipmmu-r8a7795",
ipmmu_vmsa_iommu_of_setup);
+IOMMU_OF_DECLARE(ipmmu_r8a7796_iommu_of, "renesas,ipmmu-r8a7796",
+ ipmmu_vmsa_iommu_of_setup);
#endif

MODULE_DESCRIPTION("IOMMU API for Renesas VMSA-compatible IPMMU");
\
 
 \ /
  Last update: 2017-06-19 13:09    [W:0.041 / U:1.092 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site