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drm/amdgpu: S3 resume fail on Polaris10 

Sometimes, driver can not return from fence waiting when doing VCE ring
ib test. The issue is a asic special and random issue. so adjust VCE suspend
and resume sequence.

Signed-off-by: JimQu <Jim.Qu@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
jimqu 2016-07-15 16:57:28 +08:00 committed by Alex Deucher
parent f476852a8c
commit 567e6e2984
1 changed files with 96 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

141
drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
View File

@ -43,6 +43,7 @@
#define mmVCE_LMI_VCPU_CACHE_40BIT_BAR0 0x8616
#define mmVCE_LMI_VCPU_CACHE_40BIT_BAR1 0x8617
#define mmVCE_LMI_VCPU_CACHE_40BIT_BAR2 0x8618
#define VCE_STATUS_VCPU_REPORT_FW_LOADED_MASK 0x02
#define VCE_V3_0_FW_SIZE (384 * 1024)
#define VCE_V3_0_STACK_SIZE (64 * 1024)
@ -51,6 +52,7 @@
static void vce_v3_0_mc_resume(struct amdgpu_device *adev, int idx);
static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev);
static void vce_v3_0_set_irq_funcs(struct amdgpu_device *adev);
static int vce_v3_0_wait_for_idle(void *handle);
/**
* vce_v3_0_ring_get_rptr - get read pointer
@ -205,6 +207,32 @@ static void vce_v3_0_set_vce_sw_clock_gating(struct amdgpu_device *adev,
vce_v3_0_override_vce_clock_gating(adev, false);
}
static int vce_v3_0_firmware_loaded(struct amdgpu_device *adev)
{
int i, j;
uint32_t status = 0;
for (i = 0; i < 10; ++i) {
for (j = 0; j < 100; ++j) {
status = RREG32(mmVCE_STATUS);
if (status & VCE_STATUS_VCPU_REPORT_FW_LOADED_MASK)
return 0;
mdelay(10);
}
DRM_ERROR("VCE not responding, trying to reset the ECPU!!!\n");
WREG32_P(mmVCE_SOFT_RESET,
VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK,
~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
mdelay(10);
WREG32_P(mmVCE_SOFT_RESET, 0,
~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
mdelay(10);
}
return -ETIMEDOUT;
}
/**
* vce_v3_0_start - start VCE block
*
@ -215,11 +243,24 @@ static void vce_v3_0_set_vce_sw_clock_gating(struct amdgpu_device *adev,
static int vce_v3_0_start(struct amdgpu_device *adev)
{
struct amdgpu_ring *ring;
int idx, i, j, r;
int idx, r;
ring = &adev->vce.ring[0];
WREG32(mmVCE_RB_RPTR, ring->wptr);
WREG32(mmVCE_RB_WPTR, ring->wptr);
WREG32(mmVCE_RB_BASE_LO, ring->gpu_addr);
WREG32(mmVCE_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
WREG32(mmVCE_RB_SIZE, ring->ring_size / 4);
ring = &adev->vce.ring[1];
WREG32(mmVCE_RB_RPTR2, ring->wptr);
WREG32(mmVCE_RB_WPTR2, ring->wptr);
WREG32(mmVCE_RB_BASE_LO2, ring->gpu_addr);
WREG32(mmVCE_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
WREG32(mmVCE_RB_SIZE2, ring->ring_size / 4);
mutex_lock(&adev->grbm_idx_mutex);
for (idx = 0; idx < 2; ++idx) {
if (adev->vce.harvest_config & (1 << idx))
continue;
@ -233,48 +274,24 @@ static int vce_v3_0_start(struct amdgpu_device *adev)
vce_v3_0_mc_resume(adev, idx);
/* set BUSY flag */
WREG32_P(mmVCE_STATUS, 1, ~1);
WREG32_P(mmVCE_STATUS, VCE_STATUS__JOB_BUSY_MASK,
~VCE_STATUS__JOB_BUSY_MASK);
if (adev->asic_type >= CHIP_STONEY)
WREG32_P(mmVCE_VCPU_CNTL, 1, ~0x200001);
else
WREG32_P(mmVCE_VCPU_CNTL, VCE_VCPU_CNTL__CLK_EN_MASK,
~VCE_VCPU_CNTL__CLK_EN_MASK);
WREG32_P(mmVCE_SOFT_RESET,
VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK,
~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
mdelay(100);
WREG32_P(mmVCE_SOFT_RESET, 0,
~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
for (i = 0; i < 10; ++i) {
uint32_t status;
for (j = 0; j < 100; ++j) {
status = RREG32(mmVCE_STATUS);
if (status & 2)
break;
mdelay(10);
}
r = 0;
if (status & 2)
break;
mdelay(100);
DRM_ERROR("VCE not responding, trying to reset the ECPU!!!\n");
WREG32_P(mmVCE_SOFT_RESET,
VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK,
~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
mdelay(10);
WREG32_P(mmVCE_SOFT_RESET, 0,
~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
mdelay(10);
r = -1;
}
r = vce_v3_0_firmware_loaded(adev);
/* clear BUSY flag */
WREG32_P(mmVCE_STATUS, 0, ~1);
WREG32_P(mmVCE_STATUS, 0, ~VCE_STATUS__JOB_BUSY_MASK);
/* Set Clock-Gating off */
if (adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG)
@ -290,19 +307,46 @@ static int vce_v3_0_start(struct amdgpu_device *adev)
WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
mutex_unlock(&adev->grbm_idx_mutex);
ring = &adev->vce.ring[0];
WREG32(mmVCE_RB_RPTR, ring->wptr);
WREG32(mmVCE_RB_WPTR, ring->wptr);
WREG32(mmVCE_RB_BASE_LO, ring->gpu_addr);
WREG32(mmVCE_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
WREG32(mmVCE_RB_SIZE, ring->ring_size / 4);
return 0;
}
ring = &adev->vce.ring[1];
WREG32(mmVCE_RB_RPTR2, ring->wptr);
WREG32(mmVCE_RB_WPTR2, ring->wptr);
WREG32(mmVCE_RB_BASE_LO2, ring->gpu_addr);
WREG32(mmVCE_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
WREG32(mmVCE_RB_SIZE2, ring->ring_size / 4);
static int vce_v3_0_stop(struct amdgpu_device *adev)
{
int idx;
mutex_lock(&adev->grbm_idx_mutex);
for (idx = 0; idx < 2; ++idx) {
if (adev->vce.harvest_config & (1 << idx))
continue;
if (idx == 0)
WREG32_P(mmGRBM_GFX_INDEX, 0,
~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
else
WREG32_P(mmGRBM_GFX_INDEX,
GRBM_GFX_INDEX__VCE_INSTANCE_MASK,
~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
if (adev->asic_type >= CHIP_STONEY)
WREG32_P(mmVCE_VCPU_CNTL, 0, ~0x200001);
else
WREG32_P(mmVCE_VCPU_CNTL, 0,
~VCE_VCPU_CNTL__CLK_EN_MASK);
/* hold on ECPU */
WREG32_P(mmVCE_SOFT_RESET,
VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK,
~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK);
/* clear BUSY flag */
WREG32_P(mmVCE_STATUS, 0, ~VCE_STATUS__JOB_BUSY_MASK);
/* Set Clock-Gating off */
if (adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG)
vce_v3_0_set_vce_sw_clock_gating(adev, false);
}
WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
@ -441,7 +485,14 @@ static int vce_v3_0_hw_init(void *handle)
static int vce_v3_0_hw_fini(void *handle)
{
return 0;
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = vce_v3_0_wait_for_idle(handle);
if (r)
return r;
return vce_v3_0_stop(adev);
}
static int vce_v3_0_suspend(void *handle)