From: Leo Liu <leo....@amd.com>
Pause the DPG when not doing decode
Signed-off-by: Leo Liu <leo....@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c | 70 +++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
index 3068b0870c8f..bef20704e2b9 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -77,6 +77,8 @@ static void vcn_v2_0_set_jpeg_ring_funcs(struct amdgpu_device
*adev);
static void vcn_v2_0_set_irq_funcs(struct amdgpu_device *adev);
static int vcn_v2_0_set_powergating_state(void *handle,
enum amd_powergating_state state);
+static int vcn_v2_0_pause_dpg_mode(struct amdgpu_device *adev,
+ struct dpg_pause_state *new_state);
/**
* vcn_v2_0_early_init - set function pointers
@@ -192,6 +194,8 @@ static int vcn_v2_0_sw_init(void *handle)
if (r)
return r;
+ adev->vcn.pause_dpg_mode = vcn_v2_0_pause_dpg_mode;
+
adev->vcn.internal.jpeg_pitch = mmUVD_JPEG_PITCH_INTERNAL_OFFSET;
adev->vcn.external.jpeg_pitch = SOC15_REG_OFFSET(UVD, 0,
mmUVD_JPEG_PITCH);
@@ -1289,6 +1293,68 @@ static int vcn_v2_0_stop(struct amdgpu_device *adev)
return 0;
}
+static int vcn_v2_0_pause_dpg_mode(struct amdgpu_device *adev,
+ struct dpg_pause_state *new_state)
+{
+ struct amdgpu_ring *ring;
+ uint32_t reg_data = 0;
+ int ret_code;
+
+ /* pause/unpause if state is changed */
+ if (adev->vcn.pause_state.fw_based != new_state->fw_based) {
+ DRM_DEBUG("dpg pause state changed %d -> %d",
+ adev->vcn.pause_state.fw_based, new_state->fw_based);
+ reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
+ (~UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK);
+
+ if (new_state->fw_based == VCN_DPG_STATE__PAUSE) {
+ ret_code = 0;
+ SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS, 0x1,
+ UVD_POWER_STATUS__UVD_POWER_STATUS_MASK,
ret_code);
+
+ if (!ret_code) {
+ /* pause DPG */
+ reg_data |=
UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
+ WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
+
+ /* wait for ACK */
+ SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
+ UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK,
+
UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK, ret_code);
+
+ /* Restore */
+ ring = &adev->vcn.ring_enc[0];
+ WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO,
ring->gpu_addr);
+ WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI,
upper_32_bits(ring->gpu_addr));
+ WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE,
ring->ring_size / 4);
+ WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR,
lower_32_bits(ring->wptr));
+ WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR,
lower_32_bits(ring->wptr));
+
+ ring = &adev->vcn.ring_enc[1];
+ WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_LO2,
ring->gpu_addr);
+ WREG32_SOC15(UVD, 0, mmUVD_RB_BASE_HI2,
upper_32_bits(ring->gpu_addr));
+ WREG32_SOC15(UVD, 0, mmUVD_RB_SIZE2,
ring->ring_size / 4);
+ WREG32_SOC15(UVD, 0, mmUVD_RB_RPTR2,
lower_32_bits(ring->wptr));
+ WREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2,
lower_32_bits(ring->wptr));
+
+ WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
+ RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2)
& 0x7FFFFFFF);
+
+ SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
+ UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
+
UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
+ }
+ } else {
+ /* unpause dpg, no need to wait */
+ reg_data &= ~UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
+ WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
+ }
+ adev->vcn.pause_state.fw_based = new_state->fw_based;
+ }
+
+ return 0;
+}
+
static bool vcn_v2_0_is_idle(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -1367,6 +1433,10 @@ static void vcn_v2_0_dec_ring_set_wptr(struct
amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
+ if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG)
+ WREG32_SOC15(UVD, 0, mmUVD_SCRATCH2,
+ lower_32_bits(ring->wptr) | 0x80000000);
+
if (ring->use_doorbell) {
adev->wb.wb[ring->wptr_offs] = lower_32_bits(ring->wptr);
WDOORBELL32(ring->doorbell_index, lower_32_bits(ring->wptr));
--
2.20.1
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
