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authorHook, Gary <Gary.Hook@amd.com>2019-07-09 15:07:22 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2019-07-26 22:08:03 +1000
commitc4a89279086e9c98eba659d7665b1732e0d5e3e3 (patch)
tree3b28fcadcc0bea7955a6d98362f612cee55fde01 /drivers/crypto/ccp/ccp-dev-v5.c
parent93308baf075039dccf347391491773f272cc24f6 (diff)
downloadlinux-c4a89279086e9c98eba659d7665b1732e0d5e3e3.tar.bz2
crypto: ccp - Add a module parameter to specify a queue count
Add a module parameter to limit the number of queues per CCP. The default value (nqueues=0) is to set up every available queue on each device. The count of queues starts from the first one found on the device (which varies based on the device ID). Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccp/ccp-dev-v5.c')
-rw-r--r--drivers/crypto/ccp/ccp-dev-v5.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c
index 35b3d866726d..f146b51a23a5 100644
--- a/drivers/crypto/ccp/ccp-dev-v5.c
+++ b/drivers/crypto/ccp/ccp-dev-v5.c
@@ -2,16 +2,14 @@
/*
* AMD Cryptographic Coprocessor (CCP) driver
*
- * Copyright (C) 2016,2017 Advanced Micro Devices, Inc.
+ * Copyright (C) 2016,2019 Advanced Micro Devices, Inc.
*
* Author: Gary R Hook <gary.hook@amd.com>
*/
-#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/kthread.h>
-#include <linux/debugfs.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/compiler.h>
@@ -792,8 +790,7 @@ static int ccp5_init(struct ccp_device *ccp)
/* Find available queues */
qmr = ioread32(ccp->io_regs + Q_MASK_REG);
- for (i = 0; i < MAX_HW_QUEUES; i++) {
-
+ for (i = 0; (i < MAX_HW_QUEUES) && (ccp->cmd_q_count < ccp->max_q_count); i++) {
if (!(qmr & (1 << i)))
continue;