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-rw-r--r--drivers/dma/amba-pl08x.c1
-rw-r--r--drivers/dma/at_hdmac.c1
-rw-r--r--drivers/dma/dw/core.c1
-rw-r--r--drivers/dma/ep93xx_dma.c1
-rw-r--r--drivers/dma/fsldma.c1
-rw-r--r--drivers/dma/ioat/dma.c1
-rw-r--r--drivers/dma/ioat/dma_v2.c1
-rw-r--r--drivers/dma/ioat/dma_v3.c1
-rw-r--r--drivers/dma/iop-adma.c1
-rw-r--r--drivers/dma/mv_xor.c1
-rw-r--r--drivers/dma/pl330.c2
-rw-r--r--drivers/dma/ppc4xx/adma.c1
-rw-r--r--drivers/dma/timb_dma.c1
-rw-r--r--drivers/dma/txx9dmac.c1
-rw-r--r--include/linux/dmaengine.h26
15 files changed, 41 insertions, 0 deletions
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index fce46c5bf1c7..7f9846464b77 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1197,6 +1197,7 @@ static void pl08x_desc_free(struct virt_dma_desc *vd)
struct pl08x_txd *txd = to_pl08x_txd(&vd->tx);
struct pl08x_dma_chan *plchan = to_pl08x_chan(vd->tx.chan);
+ dma_descriptor_unmap(txd);
if (!plchan->slave)
pl08x_unmap_buffers(txd);
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index c787f38a186a..cc7098ddf9d4 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -345,6 +345,7 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc)
list_move(&desc->desc_node, &atchan->free_list);
/* unmap dma addresses (not on slave channels) */
+ dma_descriptor_unmap(txd);
if (!atchan->chan_common.private) {
struct device *parent = chan2parent(&atchan->chan_common);
if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 89eb89f22284..e3fe1b1a73b1 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -311,6 +311,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc,
list_splice_init(&desc->tx_list, &dwc->free_list);
list_move(&desc->desc_node, &dwc->free_list);
+ dma_descriptor_unmap(txd);
if (!is_slave_direction(dwc->direction)) {
struct device *parent = chan2parent(&dwc->chan);
if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index 591cd8c63abb..dcd6bf5d3091 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -791,6 +791,7 @@ static void ep93xx_dma_tasklet(unsigned long data)
* For the memcpy channels the API requires us to unmap the
* buffers unless requested otherwise.
*/
+ dma_descriptor_unmap(&desc->txd);
if (!edmac->chan.private)
ep93xx_dma_unmap_buffers(desc);
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index b3f3e90054f2..66c4052a1f34 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -868,6 +868,7 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan,
/* Run any dependencies */
dma_run_dependencies(txd);
+ dma_descriptor_unmap(txd);
/* Unmap the dst buffer, if requested */
if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 5ff6fc1819dc..26f8cfd6bc3f 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -602,6 +602,7 @@ static void __cleanup(struct ioat_dma_chan *ioat, dma_addr_t phys_complete)
dump_desc_dbg(ioat, desc);
if (tx->cookie) {
dma_cookie_complete(tx);
+ dma_descriptor_unmap(tx);
ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw);
ioat->active -= desc->hw->tx_cnt;
if (tx->callback) {
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index b925e1b1d139..fc7b50a813cc 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -148,6 +148,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete)
tx = &desc->txd;
dump_desc_dbg(ioat, desc);
if (tx->cookie) {
+ dma_descriptor_unmap(tx);
ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw);
dma_cookie_complete(tx);
if (tx->callback) {
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index d8ececaf1b57..57a2901b917a 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -577,6 +577,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete)
tx = &desc->txd;
if (tx->cookie) {
dma_cookie_complete(tx);
+ dma_descriptor_unmap(tx);
ioat3_dma_unmap(ioat, desc, idx + i);
if (tx->callback) {
tx->callback(tx->callback_param);
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index dd8b44a56e5d..8f6e426590eb 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -152,6 +152,7 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
if (tx->callback)
tx->callback(tx->callback_param);
+ dma_descriptor_unmap(tx);
/* unmap dma addresses
* (unmap_single vs unmap_page?)
*/
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 536dcb8ba5fd..ed1ab1d0875e 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -278,6 +278,7 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc,
desc->async_tx.callback(
desc->async_tx.callback_param);
+ dma_descriptor_unmap(&desc->async_tx);
/* unmap dma addresses
* (unmap_single vs unmap_page?)
*/
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index a562d24d20bf..ab25e52cd43b 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2268,6 +2268,8 @@ static void pl330_tasklet(unsigned long data)
list_move_tail(&desc->node, &pch->dmac->desc_pool);
}
+ dma_descriptor_unmap(&desc->txd);
+
if (callback) {
spin_unlock_irqrestore(&pch->lock, flags);
callback(callback_param);
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 370ff8265630..442492da7415 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -1765,6 +1765,7 @@ static dma_cookie_t ppc440spe_adma_run_tx_complete_actions(
desc->async_tx.callback(
desc->async_tx.callback_param);
+ dma_descriptor_unmap(&desc->async_tx);
/* unmap dma addresses
* (unmap_single vs unmap_page?)
*
diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index 28af214fce04..1d0c98839087 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -293,6 +293,7 @@ static void __td_finish(struct timb_dma_chan *td_chan)
list_move(&td_desc->desc_node, &td_chan->free_list);
+ dma_descriptor_unmap(txd);
if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP))
__td_unmap_descs(td_desc,
txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE);
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 71e8e775189e..22a0b6c78c77 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -419,6 +419,7 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc,
list_splice_init(&desc->tx_list, &dc->free_list);
list_move(&desc->desc_node, &dc->free_list);
+ dma_descriptor_unmap(txd);
if (!ds) {
dma_addr_t dmaaddr;
if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 0bc727534108..9070050fbcd8 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -413,6 +413,17 @@ void dma_chan_cleanup(struct kref *kref);
typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
typedef void (*dma_async_tx_callback)(void *dma_async_param);
+
+struct dmaengine_unmap_data {
+ u8 to_cnt;
+ u8 from_cnt;
+ u8 bidi_cnt;
+ struct device *dev;
+ struct kref kref;
+ size_t len;
+ dma_addr_t addr[0];
+};
+
/**
* struct dma_async_tx_descriptor - async transaction descriptor
* ---dma generic offload fields---
@@ -438,6 +449,7 @@ struct dma_async_tx_descriptor {
dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
dma_async_tx_callback callback;
void *callback_param;
+ struct dmaengine_unmap_data *unmap;
#ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH
struct dma_async_tx_descriptor *next;
struct dma_async_tx_descriptor *parent;
@@ -445,6 +457,20 @@ struct dma_async_tx_descriptor {
#endif
};
+static inline void dma_set_unmap(struct dma_async_tx_descriptor *tx,
+ struct dmaengine_unmap_data *unmap)
+{
+ kref_get(&unmap->kref);
+ tx->unmap = unmap;
+}
+
+static inline void dma_descriptor_unmap(struct dma_async_tx_descriptor *tx)
+{
+ if (tx->unmap) {
+ tx->unmap = NULL;
+ }
+}
+
#ifndef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH
static inline void txd_lock(struct dma_async_tx_descriptor *txd)
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 20:57:24 +0000