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disp: msm: sde: add support for hwfence profiling

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This change adds hwfence input and output fence profiling
registers and debugfs to enable them.
To enable input hw fences timestamps:
echo 0x1 > /d/dri/0/debug/hw_fence_status
To enable output hw fences timestamps:
echo 0x2 > /d/dri/0/debug/hw_fence_status
To enable both, input and output hw fences timestamps:
echo 0x3 > /d/dri/0/debug/hw_fence_status.

Change-Id: I269a38f3843a01ec8c0816890e50bb7d847a4ed9
Signed-off-by: Christina Oliveira <quic_coliveir@quicinc.com>
This commit is contained in:
Christina Oliveira
2022-05-18 09:38:40 -07:00
parent d2d060cf80
commit 21ca2acab9
11 changed files with 252 additions and 23 deletions
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25
msm/sde/sde_fence.c
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@@ -251,7 +251,7 @@ int sde_fence_register_hw_fences_wait(struct sde_hw_ctl *hw_ctl, struct dma_fenc
return ret;
}
static int _arm_output_hw_fence(struct sde_hw_ctl *hw_ctl, u32 line_count)
static int _arm_output_hw_fence(struct sde_hw_ctl *hw_ctl, u32 line_count, u32 debugfs_hw_fence)
{
struct sde_hw_fence_data *data;
u32 ipcc_out_signal;
@@ -279,6 +279,10 @@ static int _arm_output_hw_fence(struct sde_hw_ctl *hw_ctl, u32 line_count)
SDE_DEBUG("out-fence ctl_id:%d out_signal:%d hw_fence_client:%s\n",
ctl_id, ipcc_out_signal, _get_client_id_name(data->hw_fence_client_id));
if ((debugfs_hw_fence & SDE_OUTPUT_HW_FENCE_TIMESTAMP) &&
hw_ctl->ops.hw_fence_output_timestamp_ctrl)
hw_ctl->ops.hw_fence_output_timestamp_ctrl(hw_ctl, true, false);
/* update client/signal output fence */
hw_ctl->ops.hw_fence_update_output_fence(hw_ctl, data->ipcc_out_client, ipcc_out_signal);
SDE_EVT32_VERBOSE(ctl_id, ipcc_out_signal);
@@ -293,7 +297,8 @@ static int _arm_output_hw_fence(struct sde_hw_ctl *hw_ctl, u32 line_count)
return 0;
}
static int _sde_fence_arm_output_hw_fence(struct sde_fence_context *ctx, u32 line_count)
static int _sde_fence_arm_output_hw_fence(struct sde_fence_context *ctx, u32 line_count,
u32 debugfs_hw_fence)
{
struct sde_hw_ctl *hw_ctl = NULL;
struct sde_fence *fc, *next;
@@ -330,13 +335,14 @@ static int _sde_fence_arm_output_hw_fence(struct sde_fence_context *ctx, u32 lin
/* arm dpu to trigger output hw-fence ipcc signal upon completion */
if (hw_ctl)
_arm_output_hw_fence(hw_ctl, line_count);
_arm_output_hw_fence(hw_ctl, line_count, debugfs_hw_fence);
return 0;
}
/* update output hw_fences txq */
int sde_fence_update_hw_fences_txq(struct sde_fence_context *ctx, bool vid_mode, u32 line_count)
int sde_fence_update_hw_fences_txq(struct sde_fence_context *ctx, bool vid_mode, u32 line_count,
u32 debugfs_hw_fence)
{
int ret = 0;
struct sde_hw_fence_data *data;
@@ -409,7 +415,7 @@ exit:
/* arm dpu to trigger output hw-fence ipcc signal upon completion in vid-mode */
if ((txq_updated && hw_ctl) || line_count)
_sde_fence_arm_output_hw_fence(ctx, line_count);
_sde_fence_arm_output_hw_fence(ctx, line_count, debugfs_hw_fence);
return ret;
}
@@ -462,7 +468,8 @@ static int _reset_hw_fence_timeline(struct sde_hw_ctl *hw_ctl, u32 flags)
return ret;
}
int sde_fence_update_input_hw_fence_signal(struct sde_hw_ctl *hw_ctl)
int sde_fence_update_input_hw_fence_signal(struct sde_hw_ctl *hw_ctl, u32 debugfs_hw_fence,
struct sde_hw_mdp *hw_mdp)
{
struct sde_hw_fence_data *data;
u32 ipcc_signal_id;
@@ -470,7 +477,7 @@ int sde_fence_update_input_hw_fence_signal(struct sde_hw_ctl *hw_ctl)
int ctl_id;
/* we must support sw_override as well, so check both functions */
if (!hw_ctl || !hw_ctl->ops.hw_fence_update_input_fence ||
if (!hw_mdp || !hw_ctl || !hw_ctl->ops.hw_fence_update_input_fence ||
!hw_ctl->ops.hw_fence_trigger_sw_override) {
SDE_ERROR("missing ctl/override/update fence %d\n", !hw_ctl);
return -EINVAL;
@@ -479,6 +486,10 @@ int sde_fence_update_input_hw_fence_signal(struct sde_hw_ctl *hw_ctl)
ctl_id = hw_ctl->idx - CTL_0;
data = &hw_ctl->hwfence_data;
if ((debugfs_hw_fence & SDE_INPUT_HW_FENCE_TIMESTAMP)
&& hw_mdp->ops.hw_fence_input_timestamp_ctrl)
hw_mdp->ops.hw_fence_input_timestamp_ctrl(hw_mdp, true, false);
ipcc_signal_id = data->ipcc_in_signal;
ipcc_client_id = data->ipcc_in_client;