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Subject[PATCH 73/83] hsa/radeon: Adding qcm fence return status
Date
From: Yair Shachar <yair.shachar@amd.com>

Waiting on fence returns status

Signed-off-by: Yair Shachar <yair.shachar@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
---
drivers/gpu/hsa/radeon/kfd_device_queue_manager.c | 6 ++++--
drivers/gpu/hsa/radeon/kfd_priv.h | 2 ++
2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c b/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c
index 4931f8a..4c53e57 100644
--- a/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c
+++ b/drivers/gpu/hsa/radeon/kfd_device_queue_manager.c
@@ -800,7 +800,7 @@ out:
return retval;
}

-static void fence_wait_timeout(unsigned int *fence_addr, unsigned int fence_value, unsigned long timeout)
+int fence_wait_timeout(unsigned int *fence_addr, unsigned int fence_value, unsigned long timeout)
{
BUG_ON(!fence_addr);
timeout += jiffies;
@@ -808,10 +808,12 @@ static void fence_wait_timeout(unsigned int *fence_addr, unsigned int fence_valu
while (*fence_addr != fence_value) {
if (time_after(jiffies, timeout)) {
pr_err("kfd: qcm fence wait loop timeout expired\n");
- break;
+ return -ETIME;
}
cpu_relax();
}
+
+ return 0;
}

static int destroy_queues_cpsch(struct device_queue_manager *dqm)
diff --git a/drivers/gpu/hsa/radeon/kfd_priv.h b/drivers/gpu/hsa/radeon/kfd_priv.h
index 97bf58a..b61187a 100644
--- a/drivers/gpu/hsa/radeon/kfd_priv.h
+++ b/drivers/gpu/hsa/radeon/kfd_priv.h
@@ -463,6 +463,8 @@ int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, struct
struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm, unsigned int qid);
void test_diq(struct kfd_dev *dev, struct process_queue_manager *pqm);

+int fence_wait_timeout(unsigned int *fence_addr, unsigned int fence_value, unsigned long timeout);
+
/* Packet Manager */

#define KFD_HIQ_TIMEOUT (500)
--
1.9.1


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