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From: Brajesh Gupta <Brajesh.Gupta@imgtec.com>
To: Matt Coster <Matt.Coster@imgtec.com>
Cc: "tzimmermann@suse.de" <tzimmermann@suse.de>,
	"simona@ffwll.ch" <simona@ffwll.ch>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"airlied@gmail.com" <airlied@gmail.com>,
	Frank Binns <Frank.Binns@imgtec.com>,
	Alessio Belle <Alessio.Belle@imgtec.com>,
	"maarten.lankhorst@linux.intel.com"
	<maarten.lankhorst@linux.intel.com>,
	Alexandru Dadu <Alexandru.Dadu@imgtec.com>,
	"mripard@kernel.org" <mripard@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/4] drm/imagination: Rename FW booted to FW initialised
Date: Tue, 19 May 2026 08:31:06 +0000	[thread overview]
Message-ID: <9dfbc928627b898c94d34d9455fc5b38d259b617.camel@imgtec.com> (raw)
In-Reply-To: <2d408760-9467-4d31-a4a3-b1883e56a433@imgtec.com>

On Mon, 2026-05-18 at 15:01 +0000, Matt Coster wrote:
> Hi Brajesh,
> 
> On 12/05/2026 07:47, Brajesh Gupta wrote:
> > Update name to FW initialised from booted to better represent FW state.
> 
> Can you please add an explanation of the distinction between "booted"
> and "initialised" that makes this useful?
> 
> Cheers,
> Matt
> 
Updated

> > 
> > Signed-off-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
> > ---
> >  drivers/gpu/drm/imagination/pvr_device.c |  2 +-
> >  drivers/gpu/drm/imagination/pvr_fw.c     |  4 ++--
> >  drivers/gpu/drm/imagination/pvr_fw.h     |  7 +++++--
> >  drivers/gpu/drm/imagination/pvr_mmu.c    |  4 ++--
> >  drivers/gpu/drm/imagination/pvr_power.c  | 14 +++++++-------
> >  5 files changed, 17 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/imagination/pvr_device.c b/drivers/gpu/drm/imagination/pvr_device.c
> > index dbb6f5a8ded1..49696101b547 100644
> > --- a/drivers/gpu/drm/imagination/pvr_device.c
> > +++ b/drivers/gpu/drm/imagination/pvr_device.c
> > @@ -213,7 +213,7 @@ static irqreturn_t pvr_device_irq_thread_handler(int irq, void *data)
> >         while (pvr_fw_irq_pending(pvr_dev)) {
> >                 pvr_fw_irq_clear(pvr_dev);
> > 
> > -               if (pvr_dev->fw_dev.booted) {
> > +               if (pvr_dev->fw_dev.initialised) {
> >                         pvr_fwccb_process(pvr_dev);
> >                         pvr_kccb_wake_up_waiters(pvr_dev);
> >                         pvr_device_process_active_queues(pvr_dev);
> > diff --git a/drivers/gpu/drm/imagination/pvr_fw.c b/drivers/gpu/drm/imagination/pvr_fw.c
> > index 288516dc2560..b8ad3f1d222c 100644
> > --- a/drivers/gpu/drm/imagination/pvr_fw.c
> > +++ b/drivers/gpu/drm/imagination/pvr_fw.c
> > @@ -1004,7 +1004,7 @@ pvr_fw_init(struct pvr_device *pvr_dev)
> >                 goto err_fw_stop;
> >         }
> > 
> > -       fw_dev->booted = true;
> > +       fw_dev->initialised = true;
> > 
> >         return 0;
> > 
> > @@ -1044,7 +1044,7 @@ pvr_fw_fini(struct pvr_device *pvr_dev)
> >  {
> >         struct pvr_fw_device *fw_dev = &pvr_dev->fw_dev;
> > 
> > -       fw_dev->booted = false;
> > +       fw_dev->initialised = false;
> > 
> >         pvr_fw_destroy_structures(pvr_dev);
> >         pvr_fw_object_unmap_and_destroy(pvr_dev->kccb.rtn_obj);
> > diff --git a/drivers/gpu/drm/imagination/pvr_fw.h b/drivers/gpu/drm/imagination/pvr_fw.h
> > index 1404dd492d7c..3390c84e4fd3 100644
> > --- a/drivers/gpu/drm/imagination/pvr_fw.h
> > +++ b/drivers/gpu/drm/imagination/pvr_fw.h
> > @@ -295,8 +295,11 @@ struct pvr_fw_device {
> >         /** @mem: Structure containing objects representing firmware memory allocations. */
> >         struct pvr_fw_mem mem;
> > 
> > -       /** @booted: %true if the firmware has been booted, %false otherwise. */
> > -       bool booted;
> > +       /**
> > +        * @initialised: %true if the firmware has been successfully initialised,
> > +        *               %false otherwise.
> > +        */
> > +       bool initialised;
> > 
> >         /**
> >          * @processor_type: FW processor type for this device. Must be one of
> > diff --git a/drivers/gpu/drm/imagination/pvr_mmu.c b/drivers/gpu/drm/imagination/pvr_mmu.c
> > index 2e4da5b2c499..e9fefcc4e234 100644
> > --- a/drivers/gpu/drm/imagination/pvr_mmu.c
> > +++ b/drivers/gpu/drm/imagination/pvr_mmu.c
> > @@ -133,8 +133,8 @@ int pvr_mmu_flush_exec(struct pvr_device *pvr_dev, bool wait)
> >         if (!drm_dev_enter(from_pvr_device(pvr_dev), &idx))
> >                 return -EIO;
> > 
> > -       /* Can't flush MMU if the firmware hasn't booted yet. */
> > -       if (!pvr_dev->fw_dev.booted)
> > +       /* Can't flush MMU if the firmware hasn't been initialised yet. */
> > +       if (!pvr_dev->fw_dev.initialised)
> >                 goto err_drm_dev_exit;
> > 
> >         cmd_mmu_cache_data->cache_flags =
> > diff --git a/drivers/gpu/drm/imagination/pvr_power.c b/drivers/gpu/drm/imagination/pvr_power.c
> > index 88fcce433d12..a73a6815306b 100644
> > --- a/drivers/gpu/drm/imagination/pvr_power.c
> > +++ b/drivers/gpu/drm/imagination/pvr_power.c
> > @@ -216,7 +216,7 @@ pvr_watchdog_worker(struct work_struct *work)
> >         if (pm_runtime_get_if_in_use(from_pvr_device(pvr_dev)->dev) <= 0)
> >                 goto out_requeue;
> > 
> > -       if (!pvr_dev->fw_dev.booted)
> > +       if (!pvr_dev->fw_dev.initialised)
> >                 goto out_pm_runtime_put;
> > 
> >         stalled = pvr_watchdog_kccb_stalled(pvr_dev);
> > @@ -378,8 +378,8 @@ pvr_power_device_suspend(struct device *dev)
> >         if (!drm_dev_enter(drm_dev, &idx))
> >                 return -EIO;
> > 
> > -       if (pvr_dev->fw_dev.booted) {
> > -               err = pvr_power_fw_disable(pvr_dev, false, true);
> > +       if (pvr_dev->fw_dev.initialised) {
> > +               err = pvr_power_fw_disable(pvr_dev, false);
> >                 if (err)
> >                         goto err_drm_dev_exit;
> >         }
> > @@ -408,8 +408,8 @@ pvr_power_device_resume(struct device *dev)
> >         if (err)
> >                 goto err_drm_dev_exit;
> > 
> > -       if (pvr_dev->fw_dev.booted) {
> > -               err = pvr_power_fw_enable(pvr_dev, true);
> > +       if (pvr_dev->fw_dev.initialised) {
> > +               err = pvr_power_fw_enable(pvr_dev);
> >                 if (err)
> >                         goto err_power_off;
> >         }
> > @@ -548,7 +548,7 @@ pvr_power_reset(struct pvr_device *pvr_dev, bool hard_reset)
> >                 err = pvr_power_fw_disable(pvr_dev, hard_reset, false);
> >                 if (!err) {
> >                         if (hard_reset) {
> > -                               pvr_dev->fw_dev.booted = false;
> > +                               pvr_dev->fw_dev.initialised = false;
> >                                 WARN_ON(pvr_power_device_suspend(from_pvr_device(pvr_dev)->dev));
> > 
> >                                 err = pvr_fw_hard_reset(pvr_dev);
> > @@ -556,7 +556,7 @@ pvr_power_reset(struct pvr_device *pvr_dev, bool hard_reset)
> >                                         goto err_device_lost;
> > 
> >                                 err = pvr_power_device_resume(from_pvr_device(pvr_dev)->dev);
> > -                               pvr_dev->fw_dev.booted = true;
> > +                               pvr_dev->fw_dev.initialised = true;
> >                                 if (err)
> >                                         goto err_device_lost;
> >                         } else {
> > 
> > --
> > 2.43.0
> > 
> 
> 
Thanks,
Brajesh

  reply	other threads:[~2026-05-19  8:31 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-12  6:47 [PATCH 0/4] drm/imagination: Multiple enhancement Brajesh Gupta
2026-05-12  6:47 ` [PATCH 1/4] drm/imagination: Populate FW common context ID before passing to the FW Brajesh Gupta
2026-05-18 15:01   ` Matt Coster
2026-05-19  8:27     ` Brajesh Gupta
2026-05-12  6:47 ` [PATCH 2/4] drm/imagination: Don't timeout job if its fence has been signaled Brajesh Gupta
2026-05-18 15:01   ` Matt Coster
2026-05-19  8:30     ` Brajesh Gupta
2026-05-12  6:47 ` [PATCH 3/4] drm/imagination: Rename FW booted to FW initialised Brajesh Gupta
2026-05-18 15:01   ` Matt Coster
2026-05-19  8:31     ` Brajesh Gupta [this message]
2026-05-12  6:47 ` [PATCH 4/4] drm/imagination: Access FW initialised state with READ/WRITE_ONCE Brajesh Gupta
2026-05-18 15:02   ` Matt Coster
2026-05-19  8:35     ` Brajesh Gupta

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