Add a new function lmb_is_reserved_flags to check is a address is reserved with a specific flags.
This function can be used to check if an address had be reserved with no-map flags with:
lmb_is_reserved_flags(lmb, addr, LMB_NOMAP);
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
include/lmb.h | 1 + lib/lmb.c | 10 ++++++++-- 2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/include/lmb.h b/include/lmb.h index 1c73f4851b..68e9cc007a 100644 --- a/include/lmb.h +++ b/include/lmb.h @@ -59,6 +59,7 @@ extern phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base, phys_size_t size); extern phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t addr); extern int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr); +extern int lmb_is_reserved_flags(struct lmb *lmb, phys_addr_t addr, int flags); extern long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size);
extern void lmb_dump_all(struct lmb *lmb); diff --git a/lib/lmb.c b/lib/lmb.c index 44ab9cede2..d237d0b65f 100644 --- a/lib/lmb.c +++ b/lib/lmb.c @@ -440,7 +440,7 @@ phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t addr) return 0; }
-int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr) +int lmb_is_reserved_flags(struct lmb *lmb, phys_addr_t addr, int flags) { int i;
@@ -448,11 +448,17 @@ int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr) phys_addr_t upper = lmb->reserved.region[i].base + lmb->reserved.region[i].size - 1; if ((addr >= lmb->reserved.region[i].base) && (addr <= upper)) - return 1; + return !!((lmb->reserved.region[i].flags & flags) + == flags); } return 0; }
+int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr) +{ + return lmb_is_reserved_flags(lmb, addr, LMB_NONE); +} + __weak void board_lmb_reserve(struct lmb *lmb) { /* please define platform specific board_lmb_reserve() */