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[Xen-devel] [PATCH v3 3/5] xen: arm: slightly refactor gic DT node creation for domain 0



all gics.

Although in principal #interrupt-cells can vary it must always be 3
for a GIC (and we only support GIC as a guest interrupt controller),
so putting it in common code is OK.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
v3: Retitle and reword, was "xen: arm: propagate gic's
    #interrupt-cells property to dom0."
---
 xen/arch/arm/domain_build.c |    8 ++++++++
 xen/arch/arm/gic-hip04.c    |    9 ---------
 xen/arch/arm/gic-v2.c       |    9 ---------
 xen/arch/arm/gic-v3.c       |    8 --------
 4 files changed, 8 insertions(+), 26 deletions(-)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index 24a0242..e9307f6 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -847,6 +847,14 @@ static int make_gic_node(const struct domain *d, void *fdt,
             return res;
     }
 
+    res = fdt_property_cell(fdt, "#interrupt-cells", 3);
+    if ( res )
+        return res;
+
+    res = fdt_property(fdt, "interrupt-controller", NULL, 0);
+    if ( res )
+        return res;
+
     res = fdt_end_node(fdt);
 
     return res;
diff --git a/xen/arch/arm/gic-hip04.c b/xen/arch/arm/gic-hip04.c
index 073ad33..223c414 100644
--- a/xen/arch/arm/gic-hip04.c
+++ b/xen/arch/arm/gic-hip04.c
@@ -636,15 +636,6 @@ static int hip04gic_make_dt_node(const struct domain *d,
     if ( res )
         return res;
 
-    res = fdt_property_cell(fdt, "#interrupt-cells", 3);
-    if ( res )
-        return res;
-
-    res = fdt_property(fdt, "interrupt-controller", NULL, 0);
-
-    if ( res )
-        return res;
-
     /*
      * DTB provides up to 4 regions to handle virtualization
      * (in order GICD, GICC, GICH and GICV interfaces)
diff --git a/xen/arch/arm/gic-v2.c b/xen/arch/arm/gic-v2.c
index 1a639e0..073fec2 100644
--- a/xen/arch/arm/gic-v2.c
+++ b/xen/arch/arm/gic-v2.c
@@ -624,15 +624,6 @@ static int gicv2_make_dt_node(const struct domain *d,
     if ( res )
         return res;
 
-    res = fdt_property_cell(fdt, "#interrupt-cells", 3);
-    if ( res )
-        return res;
-
-    res = fdt_property(fdt, "interrupt-controller", NULL, 0);
-
-    if ( res )
-        return res;
-
     /*
      * DTB provides up to 4 regions to handle virtualization
      * (in order GICD, GICC, GICH and GICV interfaces)
diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index b0f498e..e9a8eda 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -1106,14 +1106,6 @@ static int gicv3_make_dt_node(const struct domain *d,
     if ( res )
         return res;
 
-    res = fdt_property_cell(fdt, "#interrupt-cells", 3);
-    if ( res )
-        return res;
-
-    res = fdt_property(fdt, "interrupt-controller", NULL, 0);
-    if ( res )
-        return res;
-
     res = dt_property_read_u32(gic, "redistributor-stride", &rd_stride);
     if ( !res )
         rd_stride = 0;
-- 
1.7.10.4


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