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dma-helpers: Add trace events

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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This commit is contained in:
Kevin Wolf 2011-11-24 06:15:28 -05:00
parent e94d138733
commit c57c465800
2 changed files with 17 additions and 0 deletions
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10
dma-helpers.c
View File

@ -9,6 +9,7 @@
#include "dma.h"
#include "block_int.h"
#include "trace.h"
void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint)
{
@ -83,6 +84,8 @@ static void dma_bdrv_unmap(DMAAIOCB *dbs)
static void dma_complete(DMAAIOCB *dbs, int ret)
{
trace_dma_complete(dbs, ret, dbs->common.cb);
dma_bdrv_unmap(dbs);
if (dbs->common.cb) {
dbs->common.cb(dbs->common.opaque, ret);
@ -106,6 +109,8 @@ static void dma_bdrv_cb(void *opaque, int ret)
target_phys_addr_t cur_addr, cur_len;
void *mem;
trace_dma_bdrv_cb(dbs, ret);
dbs->acb = NULL;
dbs->sector_num += dbs->iov.size / 512;
dma_bdrv_unmap(dbs);
@ -130,6 +135,7 @@ static void dma_bdrv_cb(void *opaque, int ret)
}
if (dbs->iov.size == 0) {
trace_dma_map_wait(dbs);
cpu_register_map_client(dbs, continue_after_map_failure);
return;
}
@ -145,6 +151,8 @@ static void dma_aio_cancel(BlockDriverAIOCB *acb)
{
DMAAIOCB *dbs = container_of(acb, DMAAIOCB, common);
trace_dma_aio_cancel(dbs);
if (dbs->acb) {
BlockDriverAIOCB *acb = dbs->acb;
dbs->acb = NULL;
@ -168,6 +176,8 @@ BlockDriverAIOCB *dma_bdrv_io(
{
DMAAIOCB *dbs = qemu_aio_get(&dma_aio_pool, bs, cb, opaque);
trace_dma_bdrv_io(dbs, bs, sector_num, to_dev);
dbs->acb = NULL;
dbs->bs = bs;
dbs->sg = sg;

7
trace-events
View File

@ -632,3 +632,10 @@ win_helper_no_switch_pstate(uint32_t new_pstate_regs) "change_pstate: regs new=%
win_helper_wrpil(uint32_t psrpil, uint32_t new_pil) "old=%x new=%x"
win_helper_done(uint32_t tl) "tl=%d"
win_helper_retry(uint32_t tl) "tl=%d"
# dma-helpers.c
dma_bdrv_io(void *dbs, void *bs, int64_t sector_num, bool to_dev) "dbs=%p bs=%p sector_num=%" PRId64 " to_dev=%d"
dma_aio_cancel(void *dbs) "dbs=%p"
dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
dma_bdrv_cb(void *dbs, int ret) "dbs=%p ret=%d"
dma_map_wait(void *dbs) "dbs=%p"