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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
commit863981e96738983919de841ec669e157e6bdaeb0 (patch)
treed6d89a12e7eb8017837c057935a2271290907f76 /drivers/crypto/ccp/ccp-dev.h
parent8dec7c70575785729a6a9e6719a955e9c545bcab (diff)
Linux-libre 4.7.1-gnupck-4.7.1-gnu
Diffstat (limited to 'drivers/crypto/ccp/ccp-dev.h')
-rw-r--r--drivers/crypto/ccp/ccp-dev.h49
1 files changed, 48 insertions, 1 deletions
diff --git a/drivers/crypto/ccp/ccp-dev.h b/drivers/crypto/ccp/ccp-dev.h
index 7745d0be4..bd41ffcef 100644
--- a/drivers/crypto/ccp/ccp-dev.h
+++ b/drivers/crypto/ccp/ccp-dev.h
@@ -22,6 +22,9 @@
#include <linux/dmapool.h>
#include <linux/hw_random.h>
#include <linux/bitops.h>
+#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
+#include <linux/dmaengine.h>
#define MAX_CCP_NAME_LEN 16
#define MAX_DMAPOOL_NAME_LEN 32
@@ -159,7 +162,7 @@ struct ccp_actions {
/* Structure to hold CCP version-specific values */
struct ccp_vdata {
unsigned int version;
- struct ccp_actions *perform;
+ const struct ccp_actions *perform;
};
extern struct ccp_vdata ccpv3;
@@ -167,6 +170,39 @@ extern struct ccp_vdata ccpv3;
struct ccp_device;
struct ccp_cmd;
+struct ccp_dma_cmd {
+ struct list_head entry;
+
+ struct ccp_cmd ccp_cmd;
+};
+
+struct ccp_dma_desc {
+ struct list_head entry;
+
+ struct ccp_device *ccp;
+
+ struct list_head pending;
+ struct list_head active;
+
+ enum dma_status status;
+ struct dma_async_tx_descriptor tx_desc;
+ size_t len;
+};
+
+struct ccp_dma_chan {
+ struct ccp_device *ccp;
+
+ spinlock_t lock;
+ struct list_head pending;
+ struct list_head active;
+ struct list_head complete;
+
+ struct tasklet_struct cleanup_tasklet;
+
+ enum dma_status status;
+ struct dma_chan dma_chan;
+};
+
struct ccp_cmd_queue {
struct ccp_device *ccp;
@@ -261,6 +297,14 @@ struct ccp_device {
unsigned int hwrng_retries;
/*
+ * Support for the CCP DMA capabilities
+ */
+ struct dma_device dma_dev;
+ struct ccp_dma_chan *ccp_dma_chan;
+ struct kmem_cache *dma_cmd_cache;
+ struct kmem_cache *dma_desc_cache;
+
+ /*
* A counter used to generate job-ids for cmds submitted to the CCP
*/
atomic_t current_id ____cacheline_aligned;
@@ -418,4 +462,7 @@ int ccp_cmd_queue_thread(void *data);
int ccp_run_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd);
+int ccp_dmaengine_register(struct ccp_device *ccp);
+void ccp_dmaengine_unregister(struct ccp_device *ccp);
+
#endif