drm/amdgpu: Add graphics cache rinse packet for sdma 5.0

[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / amdgpu / sdma_v5_0.c

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
index 920fc6d..d294ef6 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
@@ -437,6 +437,33 @@ static void sdma_v5_0_ring_emit_ib(struct amdgpu_ring *ring,
        amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
 }
 
+/**
+ * sdma_v5_0_ring_emit_mem_sync - flush the IB by graphics cache rinse
+ *
+ * @ring: amdgpu ring pointer
+ * @job: job to retrieve vmid from
+ * @ib: IB object to schedule
+ *
+ * flush the IB by graphics cache rinse.
+ */
+static void sdma_v5_0_ring_emit_mem_sync(struct amdgpu_ring *ring)
+{
+    uint32_t gcr_cntl =
+                   SDMA_GCR_GL2_INV | SDMA_GCR_GL2_WB | SDMA_GCR_GLM_INV |
+                       SDMA_GCR_GL1_INV | SDMA_GCR_GLV_INV | SDMA_GCR_GLK_INV |
+                       SDMA_GCR_GLI_INV(1);
+
+       /* flush entire cache L0/L1/L2, this can be optimized by performance requirement */
+       amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_GCR_REQ));
+       amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD1_BASE_VA_31_7(0));
+       amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD2_GCR_CONTROL_15_0(gcr_cntl) |
+                       SDMA_PKT_GCR_REQ_PAYLOAD2_BASE_VA_47_32(0));
+       amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD3_LIMIT_VA_31_7(0) |
+                       SDMA_PKT_GCR_REQ_PAYLOAD3_GCR_CONTROL_18_16(gcr_cntl >> 16));
+       amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD4_LIMIT_VA_47_32(0) |
+                       SDMA_PKT_GCR_REQ_PAYLOAD4_VMID(0));
+}
+
 /**
  * sdma_v5_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
  *
@@ -1643,6 +1670,7 @@ static const struct amdgpu_ring_funcs sdma_v5_0_ring_funcs = {
                10 + 10 + 10, /* sdma_v5_0_ring_emit_fence x3 for user fence, vm fence */
        .emit_ib_size = 5 + 7 + 6, /* sdma_v5_0_ring_emit_ib */
        .emit_ib = sdma_v5_0_ring_emit_ib,
+       .emit_mem_sync = sdma_v5_0_ring_emit_mem_sync,
        .emit_fence = sdma_v5_0_ring_emit_fence,
        .emit_pipeline_sync = sdma_v5_0_ring_emit_pipeline_sync,
        .emit_vm_flush = sdma_v5_0_ring_emit_vm_flush,