[PATCH 7/8] drm/amdgpu:Add DPG pause mode support
James Zhu
jzhums at gmail.com
Tue Sep 25 19:55:22 UTC 2018
Add fucntions to support VCN DPG pause mode.
Signed-off-by: James Zhu <James.Zhu at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 161 +++++++++++++++++++++++++++++++-
1 file changed, 159 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 27262a8..9d59cd2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -36,6 +36,7 @@
#include "soc15_common.h"
#include "vcn/vcn_1_0_offset.h"
+#include "vcn/vcn_1_0_sh_mask.h"
/* 1 second timeout */
#define VCN_IDLE_TIMEOUT msecs_to_jiffies(1000)
@@ -212,18 +213,158 @@ int amdgpu_vcn_resume(struct amdgpu_device *adev)
return 0;
}
+static int amdgpu_vcn_pause_dpg_mode(struct amdgpu_device *adev,
+ struct dpg_pause_state *new_state)
+{
+ int ret_code;
+ uint32_t reg_data = 0;
+ uint32_t reg_data2 = 0;
+ struct amdgpu_ring *ring;
+
+ /* 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 -> %d:%d",
+ adev->vcn.pause_state.fw_based, adev->vcn.pause_state.jpeg,
+ new_state->fw_based, new_state->jpeg);
+
+ 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;
+
+ if (!(reg_data & UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK))
+ SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
+ UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
+ UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
+
+ if (!ret_code) {
+ /* pause DPG non-jpeg */
+ reg_data |= UVD_DPG_PAUSE__NJ_PAUSE_DPG_REQ_MASK;
+ WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
+ 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));
+
+ ring = &adev->vcn.ring_dec;
+ WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
+ lower_32_bits(ring->wptr) | 0x80000000);
+ 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 non-jpeg, 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;
+ }
+
+ /* pause/unpause if state is changed */
+ if (adev->vcn.pause_state.jpeg != new_state->jpeg) {
+ DRM_DEBUG("dpg pause state changed %d:%d -> %d:%d",
+ adev->vcn.pause_state.fw_based, adev->vcn.pause_state.jpeg,
+ new_state->fw_based, new_state->jpeg);
+
+ reg_data = RREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE) &
+ (~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK);
+
+ if (new_state->jpeg == VCN_DPG_STATE__PAUSE) {
+ ret_code = 0;
+
+ if (!(reg_data & UVD_DPG_PAUSE__NJ_PAUSE_DPG_ACK_MASK))
+ SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
+ UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
+ UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
+
+ if (!ret_code) {
+ /* Make sure JPRG Snoop is disabled before sending the pause */
+ reg_data2 = RREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS);
+ reg_data2 |= UVD_POWER_STATUS__JRBC_SNOOP_DIS_MASK;
+ WREG32_SOC15(UVD, 0, mmUVD_POWER_STATUS, reg_data2);
+
+ /* pause DPG jpeg */
+ reg_data |= UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
+ WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
+ SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_DPG_PAUSE,
+ UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK,
+ UVD_DPG_PAUSE__JPEG_PAUSE_DPG_ACK_MASK, ret_code);
+
+ /* Restore */
+ ring = &adev->vcn.ring_jpeg;
+ WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_VMID, 0);
+ WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL, 0x00000001L | 0x00000002L);
+ WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_LOW,
+ lower_32_bits(ring->gpu_addr));
+ WREG32_SOC15(UVD, 0, mmUVD_LMI_JRBC_RB_64BIT_BAR_HIGH,
+ upper_32_bits(ring->gpu_addr));
+ WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_RPTR, ring->wptr);
+ WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, ring->wptr);
+ WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL, 0x00000002L);
+
+ ring = &adev->vcn.ring_dec;
+ WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
+ lower_32_bits(ring->wptr) | 0x80000000);
+ 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 jpeg, no need to wait */
+ reg_data &= ~UVD_DPG_PAUSE__JPEG_PAUSE_DPG_REQ_MASK;
+ WREG32_SOC15(UVD, 0, mmUVD_DPG_PAUSE, reg_data);
+ }
+ adev->vcn.pause_state.jpeg = new_state->jpeg;
+ }
+
+ return 0;
+}
+
static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
{
struct amdgpu_device *adev =
container_of(work, struct amdgpu_device, vcn.idle_work.work);
- unsigned fences = amdgpu_fence_count_emitted(&adev->vcn.ring_dec);
- unsigned i;
+ unsigned int fences = 0;
+ unsigned int i;
for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
fences += amdgpu_fence_count_emitted(&adev->vcn.ring_enc[i]);
}
+ if (adev->pg_flags & AMD_PG_SUPPORT_DPG) {
+ struct dpg_pause_state new_state;
+
+ if (fences)
+ new_state.fw_based = VCN_DPG_STATE__PAUSE;
+ else
+ new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
+
+ if (amdgpu_fence_count_emitted(&adev->vcn.ring_jpeg))
+ new_state.jpeg = VCN_DPG_STATE__PAUSE;
+ else
+ new_state.jpeg = VCN_DPG_STATE__UNPAUSE;
+
+ amdgpu_vcn_pause_dpg_mode(adev, &new_state);
+ }
+
fences += amdgpu_fence_count_emitted(&adev->vcn.ring_jpeg);
+ fences += amdgpu_fence_count_emitted(&adev->vcn.ring_dec);
if (fences == 0) {
amdgpu_gfx_off_ctrl(adev, true);
@@ -250,6 +391,22 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
AMD_PG_STATE_UNGATE);
}
+
+ if (adev->pg_flags & AMD_PG_SUPPORT_DPG) {
+ struct dpg_pause_state new_state;
+
+ if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
+ new_state.fw_based = VCN_DPG_STATE__PAUSE;
+ else
+ new_state.fw_based = adev->vcn.pause_state.fw_based;
+
+ if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_JPEG)
+ new_state.jpeg = VCN_DPG_STATE__PAUSE;
+ else
+ new_state.jpeg = adev->vcn.pause_state.jpeg;
+
+ amdgpu_vcn_pause_dpg_mode(adev, &new_state);
+ }
}
void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring)
--
2.7.4
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