crypto: ccp - Refactor the storage block allocation code

Move the KSB access/management functions to the v3
device file, and add function pointers to the actions
structure. At the operations layer all of the references
to the storage block will be generic (virtual). This is
in preparation for a version 5 device, in which the
private storage block is managed differently.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 3 insertions, 49 deletions

diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index 2c2890a4c2e2..bd9eb1d4512a 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -41,53 +41,6 @@ static const __be32 ccp_sha256_init[CCP_SHA_CTXSIZE / sizeof(__be32)] = {
 	cpu_to_be32(SHA256_H6), cpu_to_be32(SHA256_H7),
 };
 
-static u32 ccp_alloc_ksb(struct ccp_device *ccp, unsigned int count)
-{
-	int start;
-
-	for (;;) {
-		mutex_lock(&ccp->sb_mutex);
-
-		start = (u32)bitmap_find_next_zero_area(ccp->sb,
-							ccp->sb_count,
-							ccp->sb_start,
-							count, 0);
-		if (start <= ccp->sb_count) {
-			bitmap_set(ccp->sb, start, count);
-
-			mutex_unlock(&ccp->sb_mutex);
-			break;
-		}
-
-		ccp->sb_avail = 0;
-
-		mutex_unlock(&ccp->sb_mutex);
-
-		/* Wait for KSB entries to become available */
-		if (wait_event_interruptible(ccp->sb_queue, ccp->sb_avail))
-			return 0;
-	}
-
-	return KSB_START + start;
-}
-
-static void ccp_free_ksb(struct ccp_device *ccp, unsigned int start,
-			 unsigned int count)
-{
-	if (!start)
-		return;
-
-	mutex_lock(&ccp->sb_mutex);
-
-	bitmap_clear(ccp->sb, start - KSB_START, count);
-
-	ccp->sb_avail = 1;
-
-	mutex_unlock(&ccp->sb_mutex);
-
-	wake_up_interruptible_all(&ccp->sb_queue);
-}
-
 static u32 ccp_gen_jobid(struct ccp_device *ccp)
 {
 	return atomic_inc_return(&ccp->current_id) & CCP_JOBID_MASK;
@@ -1214,7 +1167,8 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
 	memset(&op, 0, sizeof(op));
 	op.cmd_q = cmd_q;
 	op.jobid = ccp_gen_jobid(cmd_q->ccp);
-	op.sb_key = ccp_alloc_ksb(cmd_q->ccp, sb_count);
+	op.sb_key = cmd_q->ccp->vdata->perform->sballoc(cmd_q, sb_count);
+
 	if (!op.sb_key)
 		return -EIO;
 
@@ -1293,7 +1247,7 @@ e_exp:
 	ccp_dm_free(&exp);
 
 e_sb:
-	ccp_free_ksb(cmd_q->ccp, op.sb_key, sb_count);
+	cmd_q->ccp->vdata->perform->sbfree(cmd_q, op.sb_key, sb_count);
 
 	return ret;
 }