aboutsummaryrefslogtreecommitdiffstats
path: root/common/recipes-kernel/linux/linux-yocto-4.19.8/1564-drm-amdgpu-allow-huge-invalid-mappings-on-GMC8.patch
diff options
context:
space:
mode:
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1564-drm-amdgpu-allow-huge-invalid-mappings-on-GMC8.patch')
-rw-r--r--common/recipes-kernel/linux/linux-yocto-4.19.8/1564-drm-amdgpu-allow-huge-invalid-mappings-on-GMC8.patch35
1 files changed, 35 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1564-drm-amdgpu-allow-huge-invalid-mappings-on-GMC8.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1564-drm-amdgpu-allow-huge-invalid-mappings-on-GMC8.patch
new file mode 100644
index 00000000..bf67c581
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1564-drm-amdgpu-allow-huge-invalid-mappings-on-GMC8.patch
@@ -0,0 +1,35 @@
+From 47a4b1e864e2c28d64b7e153ed929e588406ac19 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
+Date: Mon, 4 Feb 2019 15:00:34 +0100
+Subject: [PATCH 1564/2940] drm/amdgpu: allow huge invalid mappings on GMC8
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Only GMC9 supports true huge pages, but we can still free invalid mappings
+on GMC8.
+
+Signed-off-by: Christian König <christian.koenig@amd.com>
+Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
+Acked-by: Huang Rui <ray.huang@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+index 371f3e07a67e..e3c71d15f8bc 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+@@ -1602,7 +1602,8 @@ static int amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params,
+
+ shift = amdgpu_vm_level_shift(adev, cursor.level);
+ parent_shift = amdgpu_vm_level_shift(adev, cursor.level - 1);
+- if (adev->asic_type < CHIP_VEGA10) {
++ if (adev->asic_type < CHIP_VEGA10 &&
++ (flags & AMDGPU_PTE_VALID)) {
+ /* No huge page support before GMC v9 */
+ if (cursor.level != AMDGPU_VM_PTB) {
+ if (!amdgpu_vm_pt_descendant(adev, &cursor))
+--
+2.17.1
+