physmem: change API, alloc now does a mapping toodevel/native-drivers

We add the _reserve() function to the API to do what was previously
achieved with _alloc(), which is to reserve a set of huge pages that are
physically contiguous.
We changed _alloc() so it now calls _reserve() and _map() and it returns
a block that is already mapped in the process' virtual address space.

Signed-off-by: Josep Puigdemont <josep.puigdemont@linaro.org>
Reviewed-by: Yi He <yi.he@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/platform/linux-generic/pktio/physmem/physmem.h b/platform/linux-generic/pktio/physmem/physmem.h
index 77dcb3894..ea3e65674 100644
--- a/platform/linux-generic/pktio/physmem/physmem.h
+++ b/platform/linux-generic/pktio/physmem/physmem.h
@@ -37,6 +37,7 @@ struct physmem_block {
 int physmem_block_init_global(void);
 int physmem_block_term_global(void);
 
+struct physmem_block *physmem_block_reserve(uint64_t size);
 struct physmem_block *physmem_block_alloc(uint64_t size);
 void physmem_block_free(struct physmem_block *block);
 int physmem_block_map(struct physmem_block *block, void *addr);