[PATCH v2] drm/amdgpu: Normalize reg offsets on JPEG v4.0.3

[Lijo Lazar]

On VFs and SOCs with GC 9.4.4, VCN RRMT is disabled.
Only local register offsets should be used on JPEG v4.0.3 as they cannot
handle remote access to other AIDs. Since only local offsets are used,
the special write to MCM_ADDR register is no longer needed.

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
---
v2: Restrict the change to GC 9.4.4 on PFs.

 drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c | 36 ++++++++++--------------
 1 file changed, 15 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c
index 6ae5a784e187..a4ebceaaa09c 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c
@@ -59,6 +59,12 @@ static int amdgpu_ih_srcid_jpeg[] = {
 	VCN_4_0__SRCID__JPEG7_DECODE
 };
 
+static inline bool jpeg_v4_0_3_normalizn_reqd(struct amdgpu_device *adev)
+{
+	return amdgpu_sriov_vf(adev) ||
+	       (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 4));
+}
+
 /**
  * jpeg_v4_0_3_early_init - set function pointers
  *
@@ -734,32 +740,20 @@ void jpeg_v4_0_3_dec_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq
 		0, PACKETJ_CONDITION_CHECK0, PACKETJ_TYPE4));
 	amdgpu_ring_write(ring, 0);
 
-	if (ring->adev->jpeg.inst[ring->me].aid_id) {
-		amdgpu_ring_write(ring, PACKETJ(regUVD_JRBC_EXTERNAL_MCM_ADDR_INTERNAL_OFFSET,
-			0, PACKETJ_CONDITION_CHECK0, PACKETJ_TYPE0));
-		amdgpu_ring_write(ring, 0x4);
-	} else {
-		amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE6));
-		amdgpu_ring_write(ring, 0);
-	}
+	amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE6));
+	amdgpu_ring_write(ring, 0);
 
 	amdgpu_ring_write(ring,	PACKETJ(regUVD_JRBC_EXTERNAL_REG_INTERNAL_OFFSET,
 		0, 0, PACKETJ_TYPE0));
 	amdgpu_ring_write(ring, 0x3fbc);
 
-	if (ring->adev->jpeg.inst[ring->me].aid_id) {
-		amdgpu_ring_write(ring, PACKETJ(regUVD_JRBC_EXTERNAL_MCM_ADDR_INTERNAL_OFFSET,
-			0, PACKETJ_CONDITION_CHECK0, PACKETJ_TYPE0));
-		amdgpu_ring_write(ring, 0x0);
-	} else {
-		amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE6));
-		amdgpu_ring_write(ring, 0);
-	}
-
 	amdgpu_ring_write(ring, PACKETJ(JRBC_DEC_EXTERNAL_REG_WRITE_ADDR,
 		0, 0, PACKETJ_TYPE0));
 	amdgpu_ring_write(ring, 0x1);
 
+	amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE6));
+	amdgpu_ring_write(ring, 0);
+
 	amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE7));
 	amdgpu_ring_write(ring, 0);
 }
@@ -834,8 +828,8 @@ void jpeg_v4_0_3_dec_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
 {
 	uint32_t reg_offset;
 
-	/* For VF, only local offsets should be used */
-	if (amdgpu_sriov_vf(ring->adev))
+	/* Use normalized offsets if required */
+	if (jpeg_v4_0_3_normalizn_reqd(ring->adev))
 		reg = NORMALIZE_JPEG_REG_OFFSET(reg);
 
 	reg_offset = (reg << 2);
@@ -881,8 +875,8 @@ void jpeg_v4_0_3_dec_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg, uint
 {
 	uint32_t reg_offset;
 
-	/* For VF, only local offsets should be used */
-	if (amdgpu_sriov_vf(ring->adev))
+	/* Use normalized offsets if required */
+	if (jpeg_v4_0_3_normalizn_reqd(ring->adev))
 		reg = NORMALIZE_JPEG_REG_OFFSET(reg);
 
 	reg_offset = (reg << 2);
-- 
2.25.1