[PATCH 07/15] habanalabs: extend QMAN0 job timeout

From: Oded Gabbay
Date: Thu Feb 28 2019 - 03:46:49 EST


From: Omer Shpigelman <oshpigelman@xxxxxxxxx>

This patch fix a bug where the timeout for sending a job on QMAN0 by KMD
wasn't enough in palladium environment.

Signed-off-by: Omer Shpigelman <oshpigelman@xxxxxxxxx>
Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxxxx>
---
drivers/misc/habanalabs/goya/goya.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 578e4bdc3a49..13923f4127af 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -83,6 +83,7 @@
#define GOYA_CPU_TIMEOUT_USEC 10000000 /* 10s */
#define GOYA_TEST_QUEUE_WAIT_USEC 100000 /* 100ms */
#define GOYA_PLDM_MMU_TIMEOUT_USEC (MMU_CONFIG_TIMEOUT_USEC * 100)
+#define GOYA_PLDM_QMAN0_TIMEOUT_USEC (HL_DEVICE_TIMEOUT_USEC * 30)

#define GOYA_QMAN0_FENCE_VAL 0xD169B243

@@ -3126,9 +3127,14 @@ static int goya_send_job_on_qman0(struct hl_device *hdev, struct hl_cs_job *job)
u32 *fence_ptr;
dma_addr_t fence_dma_addr;
struct hl_cb *cb;
- u32 tmp;
+ u32 tmp, timeout;
int rc;

+ if (hdev->pldm)
+ timeout = GOYA_PLDM_QMAN0_TIMEOUT_USEC;
+ else
+ timeout = HL_DEVICE_TIMEOUT_USEC;
+
if (!hdev->asic_funcs->is_device_idle(hdev)) {
dev_err_ratelimited(hdev->dev,
"Can't send KMD job on QMAN0 if device is not idle\n");
@@ -3175,8 +3181,8 @@ static int goya_send_job_on_qman0(struct hl_device *hdev, struct hl_cs_job *job)
goto free_fence_ptr;
}

- rc = hl_poll_timeout_memory(hdev, (u64) (uintptr_t) fence_ptr,
- HL_DEVICE_TIMEOUT_USEC, &tmp);
+ rc = hl_poll_timeout_memory(hdev, (u64) (uintptr_t) fence_ptr, timeout,
+ &tmp);

hl_hw_queue_inc_ci_kernel(hdev, GOYA_QUEUE_ID_DMA_0);

--
2.17.1