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Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4187-drm-amdgpu-sdma4-add-emit_reg_write_reg_wait-ring-ca.patch')
-rw-r--r--common/recipes-kernel/linux/linux-yocto-4.14.71/4187-drm-amdgpu-sdma4-add-emit_reg_write_reg_wait-ring-ca.patch38
1 files changed, 38 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4187-drm-amdgpu-sdma4-add-emit_reg_write_reg_wait-ring-ca.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4187-drm-amdgpu-sdma4-add-emit_reg_write_reg_wait-ring-ca.patch
new file mode 100644
index 00000000..7220a21f
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4187-drm-amdgpu-sdma4-add-emit_reg_write_reg_wait-ring-ca.patch
@@ -0,0 +1,38 @@
+From 602ffa309bb1f8f3f84be3539807d8d879586ce2 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Tue, 27 Mar 2018 16:51:41 -0500
+Subject: [PATCH 4187/5725] drm/amdgpu/sdma4: add emit_reg_write_reg_wait ring
+ callback (v2)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds support for writing and reading back in a single
+oneshot packet. This is needed to send a tlb invalidation
+and wait for ack in a single operation.
+
+v2: squash sdma hang fix into this patch
+
+Reviewed-by: Huang Rui <ray.huang@amd.com>
+Reviewed-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Emily Deng <Emily.Deng@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+index 320daec..f2a3800 100644
+--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+@@ -1616,6 +1616,7 @@ static const struct amdgpu_ring_funcs sdma_v4_0_ring_funcs = {
+ .pad_ib = sdma_v4_0_ring_pad_ib,
+ .emit_wreg = sdma_v4_0_ring_emit_wreg,
+ .emit_reg_wait = sdma_v4_0_ring_emit_reg_wait,
++ .emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
+ };
+
+ static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev)
+--
+2.7.4
+