Changeset aaceebc4 in mainline for kernel/generic/src/ddi/ddi.c

Timestamp:

2013-03-12T23:10:57Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

cf39b2e

Parents:

428bd07

Message:

Create DMA zone.

use dma zone for dma_map_anonymous calls.
create non-available zone if all pages in that zone are used.
make occupying pages in non-available zones a no-op

This enables ISA DMA on configurations with more than 16 MB of ram

File:

• kernel/generic/src/ddi/ddi.c (modified) (1 diff)

kernel/generic/src/ddi/ddi.c

@@ -336 +336 @@
                 order = fnzb(pages - 1) + 1;
         
-        *phys = frame_alloc_noreserve(order, 0);
+        *phys = frame_alloc_noreserve(order, FRAME_DMA);
         if (*phys == NULL)
                 return ENOMEM;