diff options
| author | Gary R Hook <gary.hook@amd.com> | 2017-04-20 23:24:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-20 15:30:58 +0300 |
| commit | e1adc5e04af5add90c25f285df7516a86cfc770d (patch) | |
| tree | d27c0044931bd2dcf1d534e819d7f152c8496dbb | |
| parent | 7ae1df9048db86b460dff8574b8d82db1c941cc1 (diff) | |
| download | linux-e1adc5e04af5add90c25f285df7516a86cfc770d.tar.xz | |
crypto: ccp - Use only the relevant interrupt bits
commit 56467cb11cf8ae4db9003f54b3d3425b5f07a10a upstream.
Each CCP queue can product interrupts for 4 conditions:
operation complete, queue empty, error, and queue stopped.
This driver only works with completion and error events.
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/crypto/ccp/ccp-dev-v5.c | 9 | ||||
| -rw-r--r-- | drivers/crypto/ccp/ccp-dev.h | 5 |
2 files changed, 7 insertions, 7 deletions
diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c index 3422f203455d..4e9436b98bac 100644 --- a/drivers/crypto/ccp/ccp-dev-v5.c +++ b/drivers/crypto/ccp/ccp-dev-v5.c @@ -747,7 +747,7 @@ static int ccp5_init(struct ccp_device *ccp) ioread32(cmd_q->reg_status); /* Clear the interrupts */ - iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status); + iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status); } dev_dbg(dev, "Requesting an IRQ...\n"); @@ -828,7 +828,7 @@ static int ccp5_init(struct ccp_device *ccp) /* Enable interrupts */ for (i = 0; i < ccp->cmd_q_count; i++) { cmd_q = &ccp->cmd_q[i]; - iowrite32(ALL_INTERRUPTS, cmd_q->reg_int_enable); + iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_int_enable); } dev_dbg(dev, "Registering device...\n"); @@ -888,7 +888,7 @@ static void ccp5_destroy(struct ccp_device *ccp) iowrite32(cmd_q->qcontrol & ~CMD5_Q_RUN, cmd_q->reg_control); /* Disable the interrupts */ - iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status); + iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status); /* Clear the interrupt status */ iowrite32(0x00, cmd_q->reg_int_enable); @@ -948,7 +948,8 @@ static irqreturn_t ccp5_irq_handler(int irq, void *data) cmd_q->int_rcvd = 1; /* Acknowledge the interrupt and wake the kthread */ - iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status); + iowrite32(SUPPORTED_INTERRUPTS, + cmd_q->reg_interrupt_status); wake_up_interruptible(&cmd_q->int_queue); } } diff --git a/drivers/crypto/ccp/ccp-dev.h b/drivers/crypto/ccp/ccp-dev.h index cd9a7051da3c..79ba7950e6f7 100644 --- a/drivers/crypto/ccp/ccp-dev.h +++ b/drivers/crypto/ccp/ccp-dev.h @@ -109,9 +109,8 @@ #define INT_COMPLETION 0x1 #define INT_ERROR 0x2 #define INT_QUEUE_STOPPED 0x4 -#define ALL_INTERRUPTS (INT_COMPLETION| \ - INT_ERROR| \ - INT_QUEUE_STOPPED) +#define INT_EMPTY_QUEUE 0x8 +#define SUPPORTED_INTERRUPTS (INT_COMPLETION | INT_ERROR) #define LSB_REGION_WIDTH 5 #define MAX_LSB_CNT 8 |