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From c0c0c2381bd3cc6ceb56582c8df5febc0d199f9b Mon Sep 17 00:00:00 2001
From: Yong Zhao <yong.zhao@amd.com>
Date: Wed, 20 Sep 2017 18:10:15 -0400
Subject: [PATCH 3344/4131] drm/amdkfd: Rectify the jiffies calculation error
with milliseconds v2
The timeout in milliseconds should not be regarded as jiffies. This
commit fixed that.
v2:
- use msecs_to_jiffies
- change timeout_ms parameter to unsigned int to match msecs_to_jiffies
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 6 +++---
drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 5db82b8..87961fe 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -835,12 +835,12 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
int amdkfd_fence_wait_timeout(unsigned int *fence_addr,
unsigned int fence_value,
- unsigned long timeout)
+ unsigned int timeout_ms)
{
- timeout += jiffies;
+ unsigned long end_jiffies = msecs_to_jiffies(timeout_ms) + jiffies;
while (*fence_addr != fence_value) {
- if (time_after(jiffies, timeout)) {
+ if (time_after(jiffies, end_jiffies)) {
pr_err("qcm fence wait loop timeout expired\n");
return -ETIME;
}
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 5d9bdc5..83befe2 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -671,7 +671,7 @@ struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm,
int amdkfd_fence_wait_timeout(unsigned int *fence_addr,
unsigned int fence_value,
- unsigned long timeout);
+ unsigned int timeout_ms);
/* Packet Manager */
--
2.7.4
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