drm/amdgpu: add unmap latency when gfx11 set kiq resources

[why]
If driver does not set unmap latency for KIQ, the default value of KIQ
unmap latency is zero. When do unmap queue, KIQ will return that almost
immediately after receiving unmap command. So, the queue status will be
saved to MQD incorrectly or lost in some chance.

[how]
Set unmap latency when do kiq set resources. The unmap latency is set to
be 1 second that is synchronized with Windows driver.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Tong Liu01 <Tong.Liu01@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index fd22943685f7d56c8da49220dddc0b92f6b3a6f8..7aef7a3a340fe92a55c8a1c30de1578f7fdd91d7 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -155,6 +155,7 @@ static void gfx11_kiq_set_resources(struct amdgpu_ring *kiq_ring, uint64_t queue
 {
        amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_SET_RESOURCES, 6));
        amdgpu_ring_write(kiq_ring, PACKET3_SET_RESOURCES_VMID_MASK(0) |
+                         PACKET3_SET_RESOURCES_UNMAP_LATENTY(0xa) | /* unmap_latency: 0xa (~ 1s) */
                          PACKET3_SET_RESOURCES_QUEUE_TYPE(0)); /* vmid_mask:0 queue_type:0 (KIQ) */
        amdgpu_ring_write(kiq_ring, lower_32_bits(queue_mask)); /* queue mask lo */
        amdgpu_ring_write(kiq_ring, upper_32_bits(queue_mask)); /* queue mask hi */