On Wed, Apr 10, 2019 at 09:01:52AM +0200, Peter Zijlstra wrote:
> On Tue, Apr 09, 2019 at 06:19:57PM -0700, Ricardo Neri wrote:
> > On Tue, Apr 09, 2019 at 01:28:17PM +0200, Peter Zijlstra wrote:
> > > > @@ -147,6 +161,14 @@ static void set_periodic(struct hpet_hld_data
> > > > *hdata)
> > > > *
On Tue, Apr 09, 2019 at 06:19:57PM -0700, Ricardo Neri wrote:
> On Tue, Apr 09, 2019 at 01:28:17PM +0200, Peter Zijlstra wrote:
> > > @@ -147,6 +161,14 @@ static void set_periodic(struct hpet_hld_data *hdata)
> > > */
> > > static bool is_hpet_wdt_interrupt(struct hpet_hld_data *hdata)
> > > {
On Tue, Apr 09, 2019 at 01:28:17PM +0200, Peter Zijlstra wrote:
> On Wed, Feb 27, 2019 at 08:05:16AM -0800, Ricardo Neri wrote:
> > @@ -62,7 +67,18 @@ static inline void set_comparator(struct hpet_hld_data
> > *hdata,
> > static void kick_timer(struct hpet_hld_data *hdata, bool force)
> > {
> >
On Wed, Feb 27, 2019 at 08:05:16AM -0800, Ricardo Neri wrote:
> @@ -62,7 +67,18 @@ static inline void set_comparator(struct hpet_hld_data
> *hdata,
> static void kick_timer(struct hpet_hld_data *hdata, bool force)
> {
> bool kick_needed = force || !(hdata->flags & HPET_DEV_PERI_CAP);
> -
On Tue, Mar 26, 2019 at 09:55:35PM +0100, Thomas Gleixner wrote:
> On Wed, 27 Feb 2019, Ricardo Neri wrote:
> > @@ -62,7 +67,18 @@ static inline void set_comparator(struct hpet_hld_data
> > *hdata,
> > static void kick_timer(struct hpet_hld_data *hdata, bool force)
> > {
> > bool kick_needed
On Wed, 27 Feb 2019, Ricardo Neri wrote:
> @@ -62,7 +67,18 @@ static inline void set_comparator(struct hpet_hld_data
> *hdata,
> static void kick_timer(struct hpet_hld_data *hdata, bool force)
> {
> bool kick_needed = force || !(hdata->flags & HPET_DEV_PERI_CAP);
> - unsigned long new_
The only direct method to determine whether an HPET timer caused an
interrupt is to read the Interrupt Status register. Unfortunately,
reading HPET registers is slow and, therefore, it is not recommended to
read them while in NMI context. Furthermore, status is not available if
the interrupt is gen
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