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drm/amdgpu: implement UVD6 check/pre/post_soft_reset

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Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-07-18 17:18:01 +08:00 committed by Alex Deucher
parent 1015a1b175
commit fc0b3b90b7
3 changed files with 70 additions and 5 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@ -1689,6 +1689,7 @@ struct amdgpu_uvd {
bool address_64_bit;
bool use_ctx_buf;
struct amd_sched_entity entity;
uint32_t srbm_soft_reset;
};
/*

1
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -1977,7 +1977,6 @@ static bool amdgpu_need_full_reset(struct amdgpu_device *adev)
{
if (adev->ip_block_status[AMD_IP_BLOCK_TYPE_GMC].hang ||
adev->ip_block_status[AMD_IP_BLOCK_TYPE_SMC].hang ||
adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang ||
adev->ip_block_status[AMD_IP_BLOCK_TYPE_VCE].hang ||
adev->ip_block_status[AMD_IP_BLOCK_TYPE_ACP].hang ||
adev->ip_block_status[AMD_IP_BLOCK_TYPE_DCE].hang) {

73
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
View File

@ -754,14 +754,76 @@ static int uvd_v6_0_wait_for_idle(void *handle)
return -ETIMEDOUT;
}
static int uvd_v6_0_soft_reset(void *handle)
#define AMDGPU_UVD_STATUS_BUSY_MASK 0xfd
static int uvd_v6_0_check_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
u32 srbm_soft_reset = 0;
u32 tmp = RREG32(mmSRBM_STATUS);
if (REG_GET_FIELD(tmp, SRBM_STATUS, UVD_RQ_PENDING) ||
REG_GET_FIELD(tmp, SRBM_STATUS, UVD_BUSY) ||
(RREG32(mmUVD_STATUS) & AMDGPU_UVD_STATUS_BUSY_MASK))
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_UVD, 1);
if (srbm_soft_reset) {
adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang = true;
adev->uvd.srbm_soft_reset = srbm_soft_reset;
} else {
adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang = false;
adev->uvd.srbm_soft_reset = 0;
}
return 0;
}
static int uvd_v6_0_pre_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
uvd_v6_0_stop(adev);
if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang)
return 0;
uvd_v6_0_stop(adev);
return 0;
}
static int uvd_v6_0_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
u32 srbm_soft_reset;
if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang)
return 0;
srbm_soft_reset = adev->uvd.srbm_soft_reset;
if (srbm_soft_reset) {
u32 tmp;
tmp = RREG32(mmSRBM_SOFT_RESET);
tmp |= srbm_soft_reset;
dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
WREG32(mmSRBM_SOFT_RESET, tmp);
tmp = RREG32(mmSRBM_SOFT_RESET);
udelay(50);
tmp &= ~srbm_soft_reset;
WREG32(mmSRBM_SOFT_RESET, tmp);
tmp = RREG32(mmSRBM_SOFT_RESET);
/* Wait a little for things to settle down */
udelay(50);
}
return 0;
}
static int uvd_v6_0_post_soft_reset(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang)
return 0;
WREG32_P(mmSRBM_SOFT_RESET, SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK,
~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
mdelay(5);
return uvd_v6_0_start(adev);
@ -966,7 +1028,10 @@ const struct amd_ip_funcs uvd_v6_0_ip_funcs = {
.resume = uvd_v6_0_resume,
.is_idle = uvd_v6_0_is_idle,
.wait_for_idle = uvd_v6_0_wait_for_idle,
.check_soft_reset = uvd_v6_0_check_soft_reset,
.pre_soft_reset = uvd_v6_0_pre_soft_reset,
.soft_reset = uvd_v6_0_soft_reset,
.post_soft_reset = uvd_v6_0_post_soft_reset,
.set_clockgating_state = uvd_v6_0_set_clockgating_state,
.set_powergating_state = uvd_v6_0_set_powergating_state,
};