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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
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