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video: tegra: host: dla: add support for trace event

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Add support for sending set_debug command to configure
trace events in firmware.
- Add new interface: dla_debug_config
- command interface for trace_event configuration

DLA-254

Change-Id: I6ea5c1c57f75891d4633839f0f82470d92109b8f
Signed-off-by: Amit Sharma (SW-Tegra) <amisharma@nvidia.com>
Reviewed-on: http://git-master/r/1291925
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
This commit is contained in:
Amit Sharma (SW-Tegra)
2017-01-11 09:58:25 +05:30
committed by Laxman Dewangan
parent d22f608f4b
commit 4eba150eec
1 changed files with 79 additions and 2 deletions
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81
drivers/video/tegra/host/nvdla/nvdla_debug.c
View File

@@ -34,6 +34,14 @@
*/
#define TRACE_DATA_OFFSET (2 * sizeof(uint32_t))
#define dla_set_trace_enable(pdev, trace_enable) \
debug_set_trace_event_config(pdev, trace_enable, \
DLA_SET_TRACE_ENABLE); \
#define dla_set_trace_event_mask(pdev, event_mask) \
debug_set_trace_event_config(pdev, event_mask, \
DLA_SET_TRACE_EVENT_MASK); \
static int nvdla_fw_ver_show(struct seq_file *s, void *unused)
{
struct nvdla_device *nvdla_dev;
@@ -235,6 +243,59 @@ static int debug_dla_bintrace_open(struct inode *inode, struct file *file)
return single_open(file, debug_dla_bintracedump_show, inode->i_private);
}
static int debug_set_trace_event_config(struct platform_device *pdev,
u32 value, u32 sub_cmd)
{
int err = 0;
struct nvdla_cmd_mem_info trace_events_mem_info;
struct dla_debug_config *trace_event;
struct nvdla_cmd_data cmd_data;
/* make sure that device is powered on */
err = nvhost_module_busy(pdev);
if (err) {
nvdla_dbg_err(pdev, "failed to power on\n");
err = -ENODEV;
goto fail_to_on;
}
/* assign memory for command */
err = nvdla_get_cmd_memory(pdev, &trace_events_mem_info);
if (err) {
nvdla_dbg_err(pdev, "dma alloc for command failed");
goto alloc_failed;
}
trace_event = (struct dla_debug_config *)trace_events_mem_info.va;
trace_event->sub_cmd = sub_cmd;
trace_event->data = (u64)value;
/* prepare command data */
cmd_data.method_id = DLA_CMD_SET_DEBUG;
cmd_data.method_data = ALIGNED_DMA(trace_events_mem_info.pa);
cmd_data.wait = true;
/* pass set debug command to falcon */
err = nvdla_send_cmd(pdev, &cmd_data);
/* free memory allocated for trace event command */
nvdla_put_cmd_memory(pdev, trace_events_mem_info.index);
if (err != 0) {
nvdla_dbg_err(pdev, "failed to send set debug command");
goto send_cmd_failed;
}
nvhost_module_idle(pdev);
return err;
send_cmd_failed:
alloc_failed:
nvhost_module_idle(pdev);
fail_to_on:
return err;
}
static ssize_t debug_dla_eventmask_set(struct file *file,
const char __user *buffer, size_t count, loff_t *off)
{
@@ -277,9 +338,17 @@ static ssize_t debug_dla_eventmask_set(struct file *file,
goto invalid_input;
}
/* Add send command to firmware from here */
/* set event_mask config */
ret = dla_set_trace_event_mask(pdev, nvdla_dev->events_mask);
if (ret) {
nvdla_dbg_err(pdev,
"%s: failed to set event mask.", __func__);
goto set_event_mask_failed;
}
return count;
set_event_mask_failed:
invalid_input:
return ret;
}
@@ -321,9 +390,17 @@ static ssize_t debug_dla_enable_trace_set(struct file *file,
goto invalid_input;
}
/* Add send command to firmware from here */
/* set trace_enable config */
ret = dla_set_trace_enable(pdev, nvdla_dev->trace_enable);
if (ret) {
nvdla_dbg_err(pdev,
"%s: failed to enable trace events.", __func__);
goto set_trace_enable_failed;
}
return count;
set_trace_enable_failed:
invalid_input:
return ret;
}