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powerpc/ps3: Add highmem repository write routines

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Add routines to allow Linux based bootloaders to create and/or
modify highmem region info in the PS3 system repository where
it can be retrived by later boot stages.

Signed-off-by: Geoff Levand <geoff@infradead.org>
This commit is contained in:
Geoff Levand 2012-03-31 18:13:36 -07:00
parent 07c044c86e
commit 79f2a81bf1
2 changed files with 83 additions and 0 deletions
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9
arch/powerpc/platforms/ps3/platform.h
View file

@ -189,6 +189,15 @@ int ps3_repository_read_region_total(u64 *region_total);
int ps3_repository_read_mm_info(u64 *rm_base, u64 *rm_size,
u64 *region_total);
int ps3_repository_write_highmem_region_count(unsigned int region_count);
int ps3_repository_write_highmem_base(unsigned int region_index,
u64 highmem_base);
int ps3_repository_write_highmem_size(unsigned int region_index,
u64 highmem_size);
int ps3_repository_write_highmem_info(unsigned int region_index,
u64 highmem_base, u64 highmem_size);
int ps3_repository_delete_highmem_info(unsigned int region_index);
/* repository pme info */
int ps3_repository_read_num_be(unsigned int *num_be);

74
arch/powerpc/platforms/ps3/repository.c
View file

@ -1058,6 +1058,80 @@ static int write_node(u64 n1, u64 n2, u64 n3, u64 n4, u64 v1, u64 v2)
return 0;
}
int ps3_repository_write_highmem_region_count(unsigned int region_count)
{
int result;
u64 v1 = (u64)region_count;
result = write_node(
make_first_field("highmem", 0),
make_field("region", 0),
make_field("count", 0),
0,
v1, 0);
return result;
}
int ps3_repository_write_highmem_base(unsigned int region_index,
u64 highmem_base)
{
return write_node(
make_first_field("highmem", 0),
make_field("region", region_index),
make_field("base", 0),
0,
highmem_base, 0);
}
int ps3_repository_write_highmem_size(unsigned int region_index,
u64 highmem_size)
{
return write_node(
make_first_field("highmem", 0),
make_field("region", region_index),
make_field("size", 0),
0,
highmem_size, 0);
}
int ps3_repository_write_highmem_info(unsigned int region_index,
u64 highmem_base, u64 highmem_size)
{
int result;
result = ps3_repository_write_highmem_base(region_index, highmem_base);
return result ? result
: ps3_repository_write_highmem_size(region_index, highmem_size);
}
static int ps3_repository_delete_highmem_base(unsigned int region_index)
{
return delete_node(
make_first_field("highmem", 0),
make_field("region", region_index),
make_field("base", 0),
0);
}
static int ps3_repository_delete_highmem_size(unsigned int region_index)
{
return delete_node(
make_first_field("highmem", 0),
make_field("region", region_index),
make_field("size", 0),
0);
}
int ps3_repository_delete_highmem_info(unsigned int region_index)
{
int result;
result = ps3_repository_delete_highmem_base(region_index);
result += ps3_repository_delete_highmem_size(region_index);
return result ? -1 : 0;
}
#endif /* defined(CONFIG_PS3_WRITE_REPOSITORY) */
#if defined(DEBUG)