| Message ID | 20220806122636.43068-14-tomas.winkler@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | GSC support for XeHP SDV and DG2 | expand |
On 8/6/2022 5:26 AM, Tomas Winkler wrote: > Add pxp mode devstate to debugfs to monitor pxp state machine progress. > This is useful to debug issues in scenarios in which the pxp state > needs to be re-initialized, like during power transitions such as > suspend/resume. With this debugfs the state could be monitored > to ensure that pxp is in the ready state. > > CC: Vitaly Lubart <vitaly.lubart@intel.com> > Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> > Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Daniele > --- > drivers/misc/mei/debugfs.c | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c > index 1ce61e9e24fc..4074fec866a6 100644 > --- a/drivers/misc/mei/debugfs.c > +++ b/drivers/misc/mei/debugfs.c > @@ -86,6 +86,20 @@ static int mei_dbgfs_active_show(struct seq_file *m, void *unused) > } > DEFINE_SHOW_ATTRIBUTE(mei_dbgfs_active); > > +static const char *mei_dev_pxp_mode_str(enum mei_dev_pxp_mode state) > +{ > +#define MEI_PXP_MODE(state) case MEI_DEV_PXP_##state: return #state > + switch (state) { > + MEI_PXP_MODE(DEFAULT); > + MEI_PXP_MODE(INIT); > + MEI_PXP_MODE(SETUP); > + MEI_PXP_MODE(READY); > + default: > + return "unknown"; > + } > +#undef MEI_PXP_MODE > +} > + > static int mei_dbgfs_devstate_show(struct seq_file *m, void *unused) > { > struct mei_device *dev = m->private; > @@ -112,6 +126,9 @@ static int mei_dbgfs_devstate_show(struct seq_file *m, void *unused) > seq_printf(m, "pg: %s, %s\n", > mei_pg_is_enabled(dev) ? "ENABLED" : "DISABLED", > mei_pg_state_str(mei_pg_state(dev))); > + > + seq_printf(m, "pxp: %s\n", mei_dev_pxp_mode_str(dev->pxp_mode)); > + > return 0; > } > DEFINE_SHOW_ATTRIBUTE(mei_dbgfs_devstate);
diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c index 1ce61e9e24fc..4074fec866a6 100644 --- a/drivers/misc/mei/debugfs.c +++ b/drivers/misc/mei/debugfs.c @@ -86,6 +86,20 @@ static int mei_dbgfs_active_show(struct seq_file *m, void *unused) } DEFINE_SHOW_ATTRIBUTE(mei_dbgfs_active); +static const char *mei_dev_pxp_mode_str(enum mei_dev_pxp_mode state) +{ +#define MEI_PXP_MODE(state) case MEI_DEV_PXP_##state: return #state + switch (state) { + MEI_PXP_MODE(DEFAULT); + MEI_PXP_MODE(INIT); + MEI_PXP_MODE(SETUP); + MEI_PXP_MODE(READY); + default: + return "unknown"; + } +#undef MEI_PXP_MODE +} + static int mei_dbgfs_devstate_show(struct seq_file *m, void *unused) { struct mei_device *dev = m->private; @@ -112,6 +126,9 @@ static int mei_dbgfs_devstate_show(struct seq_file *m, void *unused) seq_printf(m, "pg: %s, %s\n", mei_pg_is_enabled(dev) ? "ENABLED" : "DISABLED", mei_pg_state_str(mei_pg_state(dev))); + + seq_printf(m, "pxp: %s\n", mei_dev_pxp_mode_str(dev->pxp_mode)); + return 0; } DEFINE_SHOW_ATTRIBUTE(mei_dbgfs_devstate);