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drm/amdgpu:Add DPG pause mode support 

Add functions to support VCN DPG pause mode.

Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
James Zhu 2018-09-21 14:43:18 -04:00 committed by Alex Deucher
parent 0b8690b7a8
commit bd5d5180db
1 changed files with 159 additions and 2 deletions
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161
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
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@ -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_VCN_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_VCN_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)