diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1261-drm-amdkfd-Fix-MQD-modification-race-during-eviction.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1261-drm-amdkfd-Fix-MQD-modification-race-during-eviction.patch | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1261-drm-amdkfd-Fix-MQD-modification-race-during-eviction.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1261-drm-amdkfd-Fix-MQD-modification-race-during-eviction.patch deleted file mode 100644 index b94f6f00..00000000 --- a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1261-drm-amdkfd-Fix-MQD-modification-race-during-eviction.patch +++ /dev/null @@ -1,51 +0,0 @@ -From 3a6a24cd08c1a136b66864a084a18f8ac9501319 Mon Sep 17 00:00:00 2001 -From: Jay Cornwall <Jay.Cornwall@amd.com> -Date: Wed, 19 Apr 2017 13:11:30 -0500 -Subject: [PATCH 1261/4131] drm/amdkfd: Fix MQD modification race during - eviction - -The eviction path invokes update_mqd before preempting the scheduler -which may be using the MQD concurrently. This leads to a race in which -the scheduler sees partial values of MQD registers when mapping them -to the HQD. - -Do not modify the MQD during eviction (or restore). Instead just mark -q->is_active directly. Fixes CP hangs under stress testing. - -Change-Id: I6a2395cf8ec307048894e32d3a14851f136ed510 -Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com> ---- - drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 8 +++++--- - 1 file changed, 5 insertions(+), 3 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 dcdc380..24ef621 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c -@@ -629,10 +629,11 @@ int process_evict_queues(struct device_queue_manager *dqm, - continue; - } - /* if the queue is not active anyway, it is not evicted */ -- if (q->properties.is_active == true) -+ if (q->properties.is_active == true) { - q->properties.is_evicted = true; -+ q->properties.is_active = false; -+ } - -- retval = mqd->update_mqd(mqd, q->mqd, &q->properties); - if (is_queue_nocpsch(dqm, q) && - q->properties.is_evicted) - retval = mqd->destroy_mqd(mqd, q->mqd, -@@ -700,7 +701,8 @@ int process_restore_queues(struct device_queue_manager *dqm, - } - if (q->properties.is_evicted) { - q->properties.is_evicted = false; -- retval = mqd->update_mqd(mqd, q->mqd, &q->properties); -+ q->properties.is_active = true; -+ - if (dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS && - (q->properties.type == KFD_QUEUE_TYPE_COMPUTE || - q->properties.type == KFD_QUEUE_TYPE_SDMA)) --- -2.7.4 - |