sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2026-01-28 20:12:28 +03:00
Code Issues Packages Projects Releases Wiki Activity

[dma] Use virtual addresses for dma_map()

Browse Source 
Cache management operations must generally be performed on virtual
addresses rather than physical addresses.

Change the address parameter in dma_map() to be a virtual address, and
make dma() the API-level primitive instead of dma_phys().

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-07-08 12:38:05 +01:00
parent 06083d2676
commit 22de0c4edf
5 changed files with 29 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/core/dma.c
View File

@@ -47,7 +47,7 @@ PROVIDE_DMAAPI_INLINE ( flat, dma_free );
PROVIDE_DMAAPI_INLINE ( flat, dma_umalloc );
PROVIDE_DMAAPI_INLINE ( flat, dma_ufree );
PROVIDE_DMAAPI_INLINE ( flat, dma_set_mask );
PROVIDE_DMAAPI_INLINE ( flat, dma_phys );
PROVIDE_DMAAPI_INLINE ( flat, dma );
/******************************************************************************
*
@@ -67,7 +67,7 @@ PROVIDE_DMAAPI_INLINE ( flat, dma_phys );
* @ret rc Return status code
*/
static int dma_op_map ( struct dma_device *dma, struct dma_mapping *map,
physaddr_t addr, size_t len, int flags ) {
void *addr, size_t len, int flags ) {
struct dma_operations *op = dma->op;
if ( ! op )
@@ -175,4 +175,4 @@ PROVIDE_DMAAPI ( op, dma_free, dma_op_free );
PROVIDE_DMAAPI ( op, dma_umalloc, dma_op_umalloc );
PROVIDE_DMAAPI ( op, dma_ufree, dma_op_ufree );
PROVIDE_DMAAPI ( op, dma_set_mask, dma_op_set_mask );
PROVIDE_DMAAPI_INLINE ( op, dma_phys );
PROVIDE_DMAAPI_INLINE ( op, dma );