diff options
Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1182-drm-amd-Simplify-SDMA-HQD-loading-in-kernel-threads.patch')
-rw-r--r-- | meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1182-drm-amd-Simplify-SDMA-HQD-loading-in-kernel-threads.patch | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1182-drm-amd-Simplify-SDMA-HQD-loading-in-kernel-threads.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1182-drm-amd-Simplify-SDMA-HQD-loading-in-kernel-threads.patch deleted file mode 100644 index 5c77549f..00000000 --- a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1182-drm-amd-Simplify-SDMA-HQD-loading-in-kernel-threads.patch +++ /dev/null @@ -1,65 +0,0 @@ -From b1dbbbdaef3806740df0b00b5375f9ed7205094e Mon Sep 17 00:00:00 2001 -From: Felix Kuehling <Felix.Kuehling@amd.com> -Date: Thu, 1 Sep 2016 21:11:39 -0400 -Subject: [PATCH 1182/4131] drm/amd: Simplify SDMA HQD loading in kernel - threads - -Use the use_mm function to temporarily access a user process context -while running in a kernel thread. This avoids the need to lock the -mmap_sem, which fixes a circular locking problem observed with user -pointers while running without the HW scheduler. - -Change-Id: I4e74f3b021277e09df55dddf81ae5e070032b599 -Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> ---- - drivers/gpu/drm/amd/amdkfd/kfd_device.c | 9 +-------- - drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 4 ---- - 2 files changed, 1 insertion(+), 12 deletions(-) - -diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c -index 69b08a9..a47d7f1 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c -@@ -738,16 +738,9 @@ int kgd2kfd_resume_mm(struct kfd_dev *kfd, struct mm_struct *mm) - - r = -ENODEV; - pdd = kfd_get_process_device_data(kfd, p); -- if (pdd) { -- if (kfd->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) -- down_read(&mm->mmap_sem); -- -+ if (pdd) - r = process_restore_queues(kfd->dqm, &pdd->qpd); - -- if (kfd->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) -- up_read(&mm->mmap_sem); -- } -- - kfd_unref_process(p); - return r; - } -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 53fef02..d77c1ad 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c -@@ -408,8 +408,6 @@ static int update_queue(struct device_queue_manager *dqm, struct queue *q) - - BUG_ON(!dqm || !q || !q->mqd); - -- if (dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) -- down_read(¤t->mm->mmap_sem); - mutex_lock(&dqm->lock); - - pdd = kfd_get_process_device_data(q->device, q->process); -@@ -465,8 +463,6 @@ static int update_queue(struct device_queue_manager *dqm, struct queue *q) - - out_unlock: - mutex_unlock(&dqm->lock); -- if (dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) -- up_read(¤t->mm->mmap_sem); - - return retval; - } --- -2.7.4 - |