Changeset f9599b9c in mainline for uspace/drv/bus/usb/ehci/utils/malloc32.h

Timestamp:

2015-06-29T04:46:48Z (9 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

a6abe20

Parents:

ac96b11

Message:

ehci: Use page size allocations to make sure we have non-cacheable access to memory

Need DMA allocator.

File:

• uspace/drv/bus/usb/ehci/utils/malloc32.h (modified) (2 diffs)

uspace/drv/bus/usb/ehci/utils/malloc32.h

@@ -65 +65 @@
 }
 
-/** Physical mallocator simulator
- *
- * @param[in] size Size of the required memory space
- * @return Address of the aligned and big enough memory place, NULL on failure.
- */
-static inline void * malloc32(size_t size)
-        { return memalign(EHCI_ALIGN, size); }
-
-/** Physical mallocator simulator
- *
- * @param[in] addr Address of the place allocated by malloc32
- */
-static inline void free32(void *addr)
-        { free(addr); }
-
 /** Create 4KB page mapping
  *
@@ -100 +85 @@
         dmamem_unmap_anonymous(page);
 }
+
+/** Physical mallocator simulator
+ *
+ * @param[in] size Size of the required memory space
+ * @return Address of the aligned and big enough memory place, NULL on failure.
+ */
+static inline void * malloc32(size_t size)
+{
+        assert(size < PAGE_SIZE);
+        return get_page();
+}
+
+/** Physical mallocator simulator
+ *
+ * @param[in] addr Address of the place allocated by malloc32
+ */
+static inline void free32(void *addr)
+{
+        return_page(addr);
+}
+
 #endif
 /**