diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3310-drm-amdgpu-Ignore-TLB-flush-before-vmid-allocate.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3310-drm-amdgpu-Ignore-TLB-flush-before-vmid-allocate.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3310-drm-amdgpu-Ignore-TLB-flush-before-vmid-allocate.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3310-drm-amdgpu-Ignore-TLB-flush-before-vmid-allocate.patch new file mode 100644 index 00000000..4118a3fc --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3310-drm-amdgpu-Ignore-TLB-flush-before-vmid-allocate.patch @@ -0,0 +1,33 @@ +From fe92a893038b135e92ad152b1a6ea9971c3ea156 Mon Sep 17 00:00:00 2001 +From: Oak Zeng <Oak.Zeng@amd.com> +Date: Fri, 26 Jan 2018 13:56:24 -0500 +Subject: [PATCH 3310/4131] drm/amdgpu: Ignore TLB flush before vmid allocate + +Change-Id: I7309e111ebf46b73e9986187887c13642143b486 +Signed-off-by: Oak Zeng <Oak.Zeng@amd.com> +--- + drivers/gpu/drm/amd/amdkfd/kfd_process.c | 8 +++++++- + 1 file changed, 7 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c +index 7bddeb6..6e3043c 100644 +--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c ++++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c +@@ -1183,7 +1183,13 @@ void kfd_flush_tlb(struct kfd_dev *dev, struct kfd_process *p) + return; + } + +- f2g->invalidate_tlbs_vmid(dev->kgd, pdd->qpd.vmid); ++ /* vmid allocation is delayed to the creation of the first ++ * queue of the process. For buffers allocated and mapped ++ * before queue creation, vmid is still no allocated (valued 0). ++ * Ignore tlb invalidation request for this case. ++ */ ++ if (pdd->qpd.vmid) ++ f2g->invalidate_tlbs_vmid(dev->kgd, pdd->qpd.vmid); + } else + f2g->invalidate_tlbs(dev->kgd, p->pasid); + } +-- +2.7.4 + |