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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] xen/dts: Clean up the exported API for device tree
commit bc3cac5c78a02f39f1867dd60976b5481c4b74b6
Author: Julien Grall <julien.grall@xxxxxxxxxx>
AuthorDate: Fri Sep 13 13:49:30 2013 +0100
Commit: Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Tue Sep 17 15:29:10 2013 +0100
xen/dts: Clean up the exported API for device tree
All Xen code has been converted to the new device tree API that uses a tree
structure to describe the DTS.
The Flat Device tree is still used by Xen during early boot stage, but only
in
internal. Remove entirely unneeded functions or move to a static function.
Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
xen/common/device_tree.c | 92 ++++++----------------------------------
xen/include/xen/device_tree.h | 15 -------
2 files changed, 14 insertions(+), 93 deletions(-)
diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c
index 215592e..8e6d8c1 100644
--- a/xen/common/device_tree.c
+++ b/xen/common/device_tree.c
@@ -103,8 +103,8 @@ struct dt_bus
unsigned int (*get_flags)(const __be32 *addr);
};
-bool_t __init device_tree_node_matches(const void *fdt, int node,
- const char *match)
+static bool_t __init device_tree_node_matches(const void *fdt, int node,
+ const char *match)
{
const char *name;
size_t match_len;
@@ -118,7 +118,7 @@ bool_t __init device_tree_node_matches(const void *fdt, int
node,
&& (name[match_len] == '@' || name[match_len] == '\0');
}
-bool_t __init device_tree_type_matches(const void *fdt, int node,
+static bool_t __init device_tree_type_matches(const void *fdt, int node,
const char *match)
{
const void *prop;
@@ -130,8 +130,8 @@ bool_t __init device_tree_type_matches(const void *fdt, int
node,
return !dt_node_cmp(prop, match);
}
-bool_t __init device_tree_node_compatible(const void *fdt, int node,
- const char *match)
+static bool_t __init device_tree_node_compatible(const void *fdt, int node,
+ const char *match)
{
int len, l;
int mlen;
@@ -154,13 +154,6 @@ bool_t __init device_tree_node_compatible(const void *fdt,
int node,
return 0;
}
-static __init int device_tree_nr_reg_ranges(const struct fdt_property *prop,
- u32 address_cells, u32 size_cells)
-{
- u32 reg_cells = address_cells + size_cells;
- return fdt32_to_cpu(prop->len) / (reg_cells * sizeof(u32));
-}
-
static void __init get_val(const u32 **cell, u32 cells, u64 *val)
{
*val = 0;
@@ -175,8 +168,8 @@ static void __init get_val(const u32 **cell, u32 cells, u64
*val)
}
}
-void __init device_tree_get_reg(const u32 **cell, u32 address_cells,
- u32 size_cells, u64 *start, u64 *size)
+static void __init device_tree_get_reg(const u32 **cell, u32 address_cells,
+ u32 size_cells, u64 *start, u64 *size)
{
get_val(cell, address_cells, start);
get_val(cell, size_cells, size);
@@ -202,13 +195,6 @@ void dt_set_cell(__be32 **cellp, int size, u64 val)
(*cellp) += cells;
}
-void __init device_tree_set_reg(u32 **cell, u32 address_cells, u32 size_cells,
- u64 start, u64 size)
-{
- dt_set_cell(cell, address_cells, start);
- dt_set_cell(cell, size_cells, size);
-}
-
void dt_set_range(__be32 **cellp, const struct dt_device_node *np,
u64 address, u64 size)
{
@@ -216,8 +202,8 @@ void dt_set_range(__be32 **cellp, const struct
dt_device_node *np,
dt_set_cell(cellp, dt_n_size_cells(np), size);
}
-u32 __init device_tree_get_u32(const void *fdt, int node, const char
*prop_name,
- u32 dflt)
+static u32 __init device_tree_get_u32(const void *fdt, int node,
+ const char *prop_name, u32 dflt)
{
const struct fdt_property *prop;
@@ -239,8 +225,9 @@ u32 __init device_tree_get_u32(const void *fdt, int node,
const char *prop_name,
* Returns 0 if all nodes were iterated over successfully. If @func
* returns a value different from 0, that value is returned immediately.
*/
-int __init device_tree_for_each_node(const void *fdt,
- device_tree_node_func func, void *data)
+static int __init device_tree_for_each_node(const void *fdt,
+ device_tree_node_func func,
+ void *data)
{
int node;
int depth;
@@ -275,58 +262,6 @@ int __init device_tree_for_each_node(const void *fdt,
return 0;
}
-struct find_compat {
- const char *compatible;
- int found;
- int node;
- int depth;
- u32 address_cells;
- u32 size_cells;
-};
-
-static int _find_compatible_node(const void *fdt,
- int node, const char *name, int depth,
- u32 address_cells, u32 size_cells,
- void *data)
-{
- struct find_compat *c = (struct find_compat *) data;
-
- if ( c->found )
- return 1;
-
- if ( device_tree_node_compatible(fdt, node, c->compatible) )
- {
- c->found = 1;
- c->node = node;
- c->depth = depth;
- c->address_cells = address_cells;
- c->size_cells = size_cells;
- return 1;
- }
- return 0;
-}
-
-int __init find_compatible_node(const char *compatible, int *node, int *depth,
- u32 *address_cells, u32 *size_cells)
-{
- int ret;
- struct find_compat c;
- c.compatible = compatible;
- c.found = 0;
-
- ret = device_tree_for_each_node(device_tree_flattened,
_find_compatible_node, &c);
- if ( !c.found )
- return ret;
- else
- {
- *node = c.node;
- *depth = c.depth;
- *address_cells = c.address_cells;
- *size_cells = c.size_cells;
- return 1;
- }
-}
-
/**
* device_tree_bootargs - return the bootargs (the Xen command line)
* @fdt flat device tree.
@@ -394,6 +329,7 @@ static void __init process_memory_node(const void *fdt, int
node,
int banks;
const u32 *cell;
paddr_t start, size;
+ u32 reg_cells = address_cells + size_cells;
if ( address_cells < 1 || size_cells < 1 )
{
@@ -410,7 +346,7 @@ static void __init process_memory_node(const void *fdt, int
node,
}
cell = (const u32 *)prop->data;
- banks = device_tree_nr_reg_ranges(prop, address_cells, size_cells);
+ banks = fdt32_to_cpu(prop->len) / (reg_cells * sizeof (u32));
for ( i = 0; i < banks && early_info.mem.nr_banks < NR_MEM_BANKS; i++ )
{
diff --git a/xen/include/xen/device_tree.h b/xen/include/xen/device_tree.h
index fae9f97..7810f53 100644
--- a/xen/include/xen/device_tree.h
+++ b/xen/include/xen/device_tree.h
@@ -181,21 +181,6 @@ extern const void *device_tree_flattened;
size_t __init device_tree_early_init(const void *fdt);
-void __init device_tree_get_reg(const u32 **cell, u32 address_cells,
- u32 size_cells,
- u64 *start, u64 *size);
-void __init device_tree_set_reg(u32 **cell, u32 address_cells, u32 size_cells,
- u64 start, u64 size);
-u32 __init device_tree_get_u32(const void *fdt, int node,
- const char *prop_name, u32 dflt);
-bool_t __init device_tree_node_matches(const void *fdt, int node,
- const char *match);
-bool_t __init device_tree_node_compatible(const void *fdt, int node,
- const char *match);
-int __init find_compatible_node(const char *compatible, int *node, int *depth,
- u32 *address_cells, u32 *size_cells);
-int __init device_tree_for_each_node(const void *fdt,
- device_tree_node_func func, void *data);
const char __init *device_tree_bootargs(const void *fdt);
void __init device_tree_dump(const void *fdt);
--
generated by git-patchbot for /home/xen/git/xen.git#master
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