From 85821775ecd771291a2ed9a1540c6db114386cf2 Mon Sep 17 00:00:00 2001
From: Jane Jian <Jane.Jian@amd.com>
Date: Wed, 16 Nov 2022 18:22:52 +0800
Subject: drm/amdgpu/vcn: re-use original vcn0 doorbell value
Git-commit: ecb41b71ef90cf4741bcc3286b769dda746b67e6
Patch-mainline: v6.1-rc7
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
root cause that S2A need to use deduct offset flag.
after setting this flag, vcn0 doorbell value works.
so return it as before
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/mmsch_v4_0.h | 1 -
drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c | 9 +--------
2 files changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/mmsch_v4_0.h b/drivers/gpu/drm/amd/amdgpu/mmsch_v4_0.h
index f772bb499f3e..0312c71c3af9 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmsch_v4_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/mmsch_v4_0.h
@@ -32,7 +32,6 @@
#define RB_ENABLED (1 << 0)
#define RB4_ENABLED (1 << 1)
-#define MMSCH_DOORBELL_OFFSET 0x8
#define MMSCH_VF_ENGINE_STATUS__PASS 0x1
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
index 897a5ce9c9da..dcc49b01bd59 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c
@@ -100,7 +100,6 @@ static int vcn_v4_0_sw_init(void *handle)
struct amdgpu_ring *ring;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int i, r;
- int vcn_doorbell_index = 0;
r = amdgpu_vcn_sw_init(adev);
if (r)
@@ -112,12 +111,6 @@ static int vcn_v4_0_sw_init(void *handle)
if (r)
return r;
- if (amdgpu_sriov_vf(adev)) {
- vcn_doorbell_index = adev->doorbell_index.vcn.vcn_ring0_1 - MMSCH_DOORBELL_OFFSET;
- /* get DWORD offset */
- vcn_doorbell_index = vcn_doorbell_index << 1;
- }
-
for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
volatile struct amdgpu_vcn4_fw_shared *fw_shared;
@@ -135,7 +128,7 @@ static int vcn_v4_0_sw_init(void *handle)
ring = &adev->vcn.inst[i].ring_enc[0];
ring->use_doorbell = true;
if (amdgpu_sriov_vf(adev))
- ring->doorbell_index = vcn_doorbell_index + i * (adev->vcn.num_enc_rings + 1) + 1;
+ ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 << 1) + i * (adev->vcn.num_enc_rings + 1) + 1;
else
ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 << 1) + 2 + 8 * i;
--
2.38.1