Hi
Am 02.03.20 um 23:26 schrieb Daniel Vetter:
> There's only two functions called from that:
> drm_kms_helper_poll_fini() and udl_free_urb_list(). Both of these are
> also called from the ubs_driver->disconnect hook, so entirely
> pointless to do the same again in the ->release hook.
>
>
On Mon, Mar 02, 2020 at 11:26:10PM +0100, Daniel Vetter wrote:
> With the drm_device lifetime fun cleaned up there's nothing in the way
> anymore to use devm_ for everything hw releated. Do it, and in the
> process, throw out the entire onion unwinding.
Acked-by: Gerd Hoffmann
On Mon, Mar 02, 2020 at 11:26:08PM +0100, Daniel Vetter wrote:
> Instead rely on the automatic clean, for which we just need to check
> that drm_mode_config_init succeeded. To avoid an inversion in the
> cleanup we also have to move the dev_private allocation over to
> drmm_kzalloc.
>
> This is
On Mon, Mar 02, 2020 at 11:26:09PM +0100, Daniel Vetter wrote:
> We can even delete the drm_driver.release hook now!
>
> This is made possible by a preceeding patch which added a drmm_
> cleanup action to drm_mode_config_init(), hence all we need to do to
> ensure that drm_mode_config_cleanup()
On Mon, Mar 02, 2020 at 11:26:07PM +0100, Daniel Vetter wrote:
> Small mistake that crept into
>
> commit 81da8c3b8d3df6f05b11300b7d17ccd1f3017fab
> Author: Gerd Hoffmann
> Date: Tue Feb 11 14:52:18 2020 +0100
>
> drm/bochs: add drm_driver.release callback
>
> where
> @@ -575,9 +574,12 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
>
> dev = >dev;
> ret = drm_dev_init(dev, _driver, >dev);
> - if (ret)
> - goto err_free_cirrus;
> + if (ret) {
> + kfree(cirrus);
> + goto err_pci_release;
> + }
On Mon, Mar 02, 2020 at 11:25:47PM +0100, Daniel Vetter wrote:
> With this we can drop the final kfree from the release function.
Acked-by: Gerd Hoffmann
>
> Signed-off-by: Daniel Vetter
> Cc: Dave Airlie
> Cc: Gerd Hoffmann
> Cc: virtualizat...@lists.linux-foundation.org
> Cc:
On Mon, Mar 02, 2020 at 11:25:44PM +0100, Daniel Vetter wrote:
> I also did a full review of all callers, and only the xen driver
> forgot to call drm_dev_put in the failure path. Fix that up too.
>
> v2: I noticed that xen has a drm_driver.release hook, and uses
> drm_dev_alloc(). We need to
Hi Ville,
On 20-03-02 22:34, Ville Syrjala wrote:
> From: Ville Syrjälä
>
> The currently listed dotclock disagrees with the currently
> listed vrefresh rate. Change the dotclock to match the vrefresh.
>
> Someone tell me which (if either) of the dotclock or vreresh is
> correct?
Pls, check
Per-CRTC VBLANK information used to be addressed by device and pipe
index. A call drm_crtc_vblank_helper_get_vblank_timestamp_internal()
receives a pointer to the CRTC instead. Fix the documentation.
Signed-off-by: Thomas Zimmermann
Reported-by: Daniel Vetter
Fixes: f1e2b6371c12 ("drm: Add
Brings the documentation of drm_simple_encoder_init() in sync with the
function's signature.
Signed-off-by: Thomas Zimmermann
Fixes: 63170ac6f2e8 ("drm/simple-kms: Add drm_simple_encoder_{init,create}()")
Cc: Sam Ravnborg
Cc: Maarten Lankhorst
Cc: Maxime Ripard
Cc: David Airlie
Cc: Daniel
On Mon, Mar 02, 2020 at 02:14:02PM -0800, Alistair Francis wrote:
> On Fri, Feb 28, 2020 at 1:57 AM Gerd Hoffmann wrote:
> >
> > On Thu, Feb 27, 2020 at 01:04:54PM -0800, Alistair Francis wrote:
> > > The QEMU model for the Bochs display has no VGA memory section at offset
> > > 0x400 [1]. By
On 24/02/2020 21:12, Tony Lindgren wrote:
The display subsystem (DSS) needs the child outputs disabled for reset.
In order to prepare to probe DSS without legacy platform data, let's
implement sysc_pre_reset_quirk_dss() similar to what we have for the
platform data with omap_dss_reset().
Note
Hello Ville Syrjala,
Am 02.03.2020 um 21:34 schrieb Ville Syrjala:
From: Ville Syrjälä
The currently listed dotclock disagrees with the currently
listed vrefresh rate. Change the dotclock to match the vrefresh.
Someone tell me which (if either) of the dotclock or vreresh is
correct?
Your
Change since v11:
- fine tune mediatek,dpi.yaml.
- add Acked-by: Rob Herring .
Change since v10:
- convert the
Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt
to yaml format.
- read the pclk-sample in endpoint.
Changes since v9:
- rename pinctrl-names = "gpiomode",
Add property "pclk-sample" to config the dpi sample on falling (0),
rising (1), both falling and rising (2).
Acked-by: Rob Herring
Signed-off-by: Jitao Shi
---
.../devicetree/bindings/display/mediatek/mediatek,dpi.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git
Add property "pinctrl-names" to swap pin mode between gpio and dpi mode. Set
the dpi pins to gpio mode and output-low to avoid leakage current when dpi
disabled.
Signed-off-by: Jitao Shi
---
.../devicetree/bindings/display/mediatek/mediatek,dpi.txt | 7 +++
1 file changed, 7 insertions(+)
DPI can sample on falling, rising or both edge.
When DPI sample the data both rising and falling edge.
It can reduce half data io pins.
Reviewed-by: CK Hu
Signed-off-by: Jitao Shi
---
drivers/gpu/drm/mediatek/mtk_dpi.c | 18 --
1 file changed, 16 insertions(+), 2 deletions(-)
Signed-off-by: Jitao Shi
---
.../display/mediatek/mediatek,dpi.txt | 45 -
.../display/mediatek/mediatek,dpi.yaml| 92 +++
2 files changed, 92 insertions(+), 45 deletions(-)
delete mode 100644
Some chips's sample mode are rising, falling and dual edge (both
falling and rising edge).
Extern the pclk-sample property to support dual edge.
Acked-by: Rob Herring
Reviewed-by: CK Hu
Signed-off-by: Jitao Shi
---
Documentation/devicetree/bindings/media/video-interfaces.txt | 4 ++--
1 file
Config dpi pins mode to output and pull low when dpi is disabled.
Aovid leakage current from some dpi pins (Hsync Vsync DE ... ).
Signed-off-by: Jitao Shi
---
drivers/gpu/drm/mediatek/mtk_dpi.c | 44 --
1 file changed, 42 insertions(+), 2 deletions(-)
diff --git
> -Original Message-
> From: Emil Velikov
> Sent: 02 March 2020 23:51
> To: Laxminarayan Bharadiya, Pankaj
>
> Cc: Jani Nikula ; Daniel Vetter
> ; Intel Graphics Development g...@lists.freedesktop.org>; ML dri-devel
> Subject: Re: [Intel-gfx] [PATCH v2 0/7] drm: drm_fb_helper
On Wed, Feb 19, 2020 at 10:22:29PM -0800, Kees Cook wrote:
> Variables declared in a switch statement before any case statements
> cannot be automatically initialized with compiler instrumentation (as
> they are not part of any execution flow). With GCC's proposed automatic
> stack variable
> -Original Message-
> From: Daniel Vetter
> Sent: 03 March 2020 03:15
> To: Emil Velikov
> Cc: Laxminarayan Bharadiya, Pankaj
> ; Jani Nikula
> ; Daniel Vetter ; Intel
> Graphics Development ; ML dri-devel de...@lists.freedesktop.org>
> Subject: Re: [Intel-gfx] [PATCH v2 0/7] drm:
Hi, Matthias:
On Thu, 2020-02-27 at 19:22 +0100, Matthias Brugger wrote:
>
> On 27/02/2020 19:21, Matthias Brugger wrote:
> >
> >
> > On 27/02/2020 19:08, Enric Balletbo i Serra wrote:
> >> From: Matthias Brugger
> >>
> >> There is no strong reason for this to use CLK_OF_DECLARE instead of
>
Hi, Enric:
On Mon, 2020-03-02 at 12:01 +0100, Enric Balletbo i Serra wrote:
> Provide a mtk_mmsys_ddp_connect() and mtk_mmsys_disconnect() functions to
> replace mtk_ddp_add_comp_to_path() and mtk_ddp_remove_comp_from_path().
> Those functions will allow DRM driver and others to control the data
From: John Stultz
[ Upstream commit 7fd2dfc3694922eb7ace4801b7208cf9f62ebc7d ]
I was hitting kCFI crashes when building with clang, and after
some digging finally narrowed it down to the
dsi_mgr_connector_mode_valid() function being implemented as
returning an int, instead of an enum
From: Harigovindan P
[ Upstream commit a1028dcfd0dd97884072288d0c8ed7f30399b528 ]
Save pll state before dsi host is powered off. Without this change
some register values gets resetted.
Signed-off-by: Harigovindan P
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: Harigovindan P
[ Upstream commit a1028dcfd0dd97884072288d0c8ed7f30399b528 ]
Save pll state before dsi host is powered off. Without this change
some register values gets resetted.
Signed-off-by: Harigovindan P
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: John Stultz
[ Upstream commit 7fd2dfc3694922eb7ace4801b7208cf9f62ebc7d ]
I was hitting kCFI crashes when building with clang, and after
some digging finally narrowed it down to the
dsi_mgr_connector_mode_valid() function being implemented as
returning an int, instead of an enum
From: Brian Masney
[ Upstream commit ef8c9809acb0805c991bba8bdd4749fc46d44a98 ]
Add rate limiting of the 'pp done time out' warnings since these
warnings can quickly fill the dmesg buffer.
Signed-off-by: Brian Masney
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: Brian Masney
[ Upstream commit ef8c9809acb0805c991bba8bdd4749fc46d44a98 ]
Add rate limiting of the 'pp done time out' warnings since these
warnings can quickly fill the dmesg buffer.
Signed-off-by: Brian Masney
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: John Stultz
[ Upstream commit 7fd2dfc3694922eb7ace4801b7208cf9f62ebc7d ]
I was hitting kCFI crashes when building with clang, and after
some digging finally narrowed it down to the
dsi_mgr_connector_mode_valid() function being implemented as
returning an int, instead of an enum
From: Harigovindan P
[ Upstream commit a1028dcfd0dd97884072288d0c8ed7f30399b528 ]
Save pll state before dsi host is powered off. Without this change
some register values gets resetted.
Signed-off-by: Harigovindan P
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: John Stultz
[ Upstream commit 7fd2dfc3694922eb7ace4801b7208cf9f62ebc7d ]
I was hitting kCFI crashes when building with clang, and after
some digging finally narrowed it down to the
dsi_mgr_connector_mode_valid() function being implemented as
returning an int, instead of an enum
From: Harigovindan P
[ Upstream commit a1028dcfd0dd97884072288d0c8ed7f30399b528 ]
Save pll state before dsi host is powered off. Without this change
some register values gets resetted.
Signed-off-by: Harigovindan P
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: Harigovindan P
[ Upstream commit c6659785dfb3f8d75f1fe637e4222ff8178f5280 ]
For a given byte clock, if VCO recalc value is exactly same as
vco set rate value, vco_set_rate does not get called assuming
VCO is already set to required value. But Due to GDSC toggle,
VCO values are erased in
From: Stephan Gerhold
[ Upstream commit e6980a727154b793adb218fbc7b4d6af52a7e364 ]
A rotation value should have exactly one rotation angle.
At the moment there is no validation for this when parsing video=
parameters from the command line. This causes problems later on
when we try to combine
From: Stephan Gerhold
[ Upstream commit 5c320b6ce7510653bce68cecf80cf5b2d67e907f ]
At the moment, only DRM_MODE_ROTATE_180 is allowed when we try to apply
the rotation from the video mode parameters. It is also useful to allow
DRM_MODE_ROTATE_0 in case there is only a reflect option in the
From: Harigovindan P
[ Upstream commit c6659785dfb3f8d75f1fe637e4222ff8178f5280 ]
For a given byte clock, if VCO recalc value is exactly same as
vco set rate value, vco_set_rate does not get called assuming
VCO is already set to required value. But Due to GDSC toggle,
VCO values are erased in
From: Harigovindan P
[ Upstream commit a1028dcfd0dd97884072288d0c8ed7f30399b528 ]
Save pll state before dsi host is powered off. Without this change
some register values gets resetted.
Signed-off-by: Harigovindan P
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: John Stultz
[ Upstream commit 7fd2dfc3694922eb7ace4801b7208cf9f62ebc7d ]
I was hitting kCFI crashes when building with clang, and after
some digging finally narrowed it down to the
dsi_mgr_connector_mode_valid() function being implemented as
returning an int, instead of an enum
From: Brian Masney
[ Upstream commit ef8c9809acb0805c991bba8bdd4749fc46d44a98 ]
Add rate limiting of the 'pp done time out' warnings since these
warnings can quickly fill the dmesg buffer.
Signed-off-by: Brian Masney
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: Harigovindan P
[ Upstream commit a1028dcfd0dd97884072288d0c8ed7f30399b528 ]
Save pll state before dsi host is powered off. Without this change
some register values gets resetted.
Signed-off-by: Harigovindan P
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: Stephan Gerhold
[ Upstream commit 5c320b6ce7510653bce68cecf80cf5b2d67e907f ]
At the moment, only DRM_MODE_ROTATE_180 is allowed when we try to apply
the rotation from the video mode parameters. It is also useful to allow
DRM_MODE_ROTATE_0 in case there is only a reflect option in the
From: Harigovindan P
[ Upstream commit c6659785dfb3f8d75f1fe637e4222ff8178f5280 ]
For a given byte clock, if VCO recalc value is exactly same as
vco set rate value, vco_set_rate does not get called assuming
VCO is already set to required value. But Due to GDSC toggle,
VCO values are erased in
From: Brian Masney
[ Upstream commit ef8c9809acb0805c991bba8bdd4749fc46d44a98 ]
Add rate limiting of the 'pp done time out' warnings since these
warnings can quickly fill the dmesg buffer.
Signed-off-by: Brian Masney
Signed-off-by: Rob Clark
Signed-off-by: Sasha Levin
---
From: John Stultz
[ Upstream commit 7fd2dfc3694922eb7ace4801b7208cf9f62ebc7d ]
I was hitting kCFI crashes when building with clang, and after
some digging finally narrowed it down to the
dsi_mgr_connector_mode_valid() function being implemented as
returning an int, instead of an enum
From: Stephan Gerhold
[ Upstream commit e6980a727154b793adb218fbc7b4d6af52a7e364 ]
A rotation value should have exactly one rotation angle.
At the moment there is no validation for this when parsing video=
parameters from the command line. This causes problems later on
when we try to combine
On Mon, 2 Mar 2020 13:47:46 -0700, Jordan Crouse wrote:
> Convert display/msm/gmu.txt to display/msm/gmu.yaml and remove the old
> text bindings.
>
> Signed-off-by: Jordan Crouse
> ---
>
> .../devicetree/bindings/display/msm/gmu.txt| 116 ---
>
A resource will be a shmem based resource or a (planned)
vram based resource, so it makes sense to factor out common fields
(resource handle, dumb, mapped).
Signed-off-by: Gurchetan Singh
---
drivers/gpu/drm/virtio/virtgpu_drv.h| 11 ---
drivers/gpu/drm/virtio/virtgpu_object.c | 20
This function won't be useable for hostmem objects.
Signed-off-by: Gurchetan Singh
---
drivers/gpu/drm/virtio/virtgpu_drv.h| 2 +-
drivers/gpu/drm/virtio/virtgpu_object.c | 4 ++--
drivers/gpu/drm/virtio/virtgpu_vq.c | 3 ++-
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git
When memory is migrated to the GPU, it is likely to be accessed by GPU
code soon afterwards. Instead of waiting for a GPU fault, map the
migrated memory into the GPU page tables with the same access permissions
as the source CPU page table entries. This preserves copy on write
semantics.
Adaptive Sync is a VESA feature so add a DRM core helper to parse
the EDID's detailed descritors to obtain the adaptive sync monitor range.
Store this info as part fo drm_display_info so it can be used
across all drivers.
This part of the code is stripped out of amdgpu's function
On Mon, 2 Mar 2020 12:01:25 +0100, Enric Balletbo i Serra wrote:
> The mmsys system controller is not only a pure clock controller, so
> update the binding documentation to reflect that apart from providing
> clocks, it also provides routing and miscellaneous control registers.
>
>
On Mon, Mar 02, 2020 at 05:29:03PM -0600, Rob Herring wrote:
> On Fri, 28 Feb 2020 16:14:37 +0800, Jitao Shi wrote:
> > Add property "pinctrl-names" to swap pin mode between gpio and dpi mode. Set
> > the dpi pins to gpio mode and output-low to avoid leakage current when dpi
> > disabled.
> >
> >
On Fri, Feb 28, 2020 at 04:14:39PM +0800, Jitao Shi wrote:
> Signed-off-by: Jitao Shi
> ---
> .../display/mediatek/mediatek,dpi.txt | 45
> .../display/mediatek/mediatek,dpi.yaml| 100 ++
> 2 files changed, 100 insertions(+), 45 deletions(-)
> delete
On Fri, 28 Feb 2020 16:14:38 +0800, Jitao Shi wrote:
> Add property "pclk-sample" to config the dpi sample on falling (0),
> rising (1), both falling and rising (2).
>
> Signed-off-by: Jitao Shi
> ---
> .../devicetree/bindings/display/mediatek/mediatek,dpi.txt | 4 +++-
> 1 file changed, 3
On Fri, 28 Feb 2020 16:14:37 +0800, Jitao Shi wrote:
> Add property "pinctrl-names" to swap pin mode between gpio and dpi mode. Set
> the dpi pins to gpio mode and output-low to avoid leakage current when dpi
> disabled.
>
> Signed-off-by: Jitao Shi
> ---
>
(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).
On Mon, 02 Mar 2020 21:55:10 + bugzilla-dae...@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=206697
>
> --- Comment #2 from Erhard F. (erhar...@mailbox.org) ---
>
All collected together to provide a consistent story in one patch,
instead of the somewhat bumpy refactor-evolution leading to this.
Also some thoughts on what the next steps could be:
- Create a macro called devm_drm_dev_alloc() which essentially wraps
the kzalloc(); devm_drm_dev_init();
It's right above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Aside:
It's right above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Aside:
It's right above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Aside: This
We can even delete the drm_driver.release hook now!
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for
It's right above the drm_dev_put().
This allows us to delete a bit of onion unwinding in
udl_modeset_init().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final
7/7 drivers agree that's the right choice, let's do this.
This avoids duplicating the same old error checking code over all 7
drivers, which is the motivation here.
Acked-by: Sam Ravnborg
Reviewed-by: Noralf Trønnes
Tested-by: Noralf Trønnes
Signed-off-by: Daniel Vetter
Cc: Maarten Lankhorst
Only drops the drm_dev_put, but hey a few lines!
Reviewed-by: Hans de Goede
Signed-off-by: Daniel Vetter
Cc: Hans de Goede
Cc: "Noralf Trønnes"
---
drivers/gpu/drm/tiny/gm12u320.c | 19 +++
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git
Allows us to drop the drm_driver.release callback.
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Allows us to drop the drm_driver.release callback from all
drivers, and remove the mipi_dbi_release() function.
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on
Allows us to drop the drm_driver.release callback.
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
With the drm_device lifetime fun cleaned up there's nothing in the way
anymore to use devm_ for everything hw releated. Do it, and in the
process, throw out the entire onion unwinding.
Signed-off-by: Daniel Vetter
Cc: Dave Airlie
Cc: Gerd Hoffmann
Cc: Daniel Vetter
Cc: "Noralf Trønnes"
Cc:
It's right above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Aside:
It's right above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Aside: This
There's only two functions called from that:
drm_kms_helper_poll_fini() and udl_free_urb_list(). Both of these are
also called from the ubs_driver->disconnect hook, so entirely
pointless to do the same again in the ->release hook.
Furthermore by the time we clean up the drm_driver we really
Auto-unwind ftw, now possible with the fixed drm_device related
management.
Aside, clk/regulator seem to be missing devm versions for a bunch of
functions, preventing a pile of these simpler drivers from outright
losing their ->remove hook.
Reviewed-by: Linus Walleij
Signed-off-by: Daniel
It's right above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Aside:
Also there's a race in the disconnect implemenation. First shut
down, then unplug, leaves a window where userspace could sneak
in and restart the entire machinery.
With this we can also delete the very un-atomic global pipe_enabled
tracking.
Reviewed-by: Hans de Goede
Signed-off-by: Daniel
The drm_mode_config_cleanup call we can drop, and all the allocations
we can switch over to drmm_kzalloc. Unfortunately the work queue is
still present, so can't get rid of the drm_driver->release function
outright.
v2: Use drmm_mode_config_init() for more clarity (Sam, Thomas)
Cc: Sam Ravnborg
It's (almost, there's some iommu stuff without significance) right
above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup
Allows us to drop the drm_driver.release callback.
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
It's right above the drm_dev_put().
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
Aside:
Instead of having a work item that never stops (which really should be
a kthread), with a dedicated workqueue to not upset anyone else, use a
delayed work. A bunch of changes:
- We can throw out all the custom wakeup and requeue logic and state
tracking. If we schedule the work with a 0 delay
Instead rely on the automatic clean, for which we just need to check
that drm_mode_config_init succeeded. To avoid an inversion in the
cleanup we also have to move the dev_private allocation over to
drmm_kzalloc.
This is made possible by a preceeding patch which added a drmm_
cleanup action to
Small mistake that crept into
commit 81da8c3b8d3df6f05b11300b7d17ccd1f3017fab
Author: Gerd Hoffmann
Date: Tue Feb 11 14:52:18 2020 +0100
drm/bochs: add drm_driver.release callback
where drm_atomic_helper_shutdown was left in both places. The
->release callback really shouldn't touch
drm_mode_config_cleanup is idempotent, so no harm in calling this
twice. This allows us to gradually switch drivers over by removing
explicit drm_mode_config_cleanup calls.
With this step it's now also possible that (at least for simple
drivers) automatic resource cleanup can be done correctly
Nothing special here, except that this is the first time that we
automatically clean up something that's initialized with an explicit
driver call. But the cleanup was done at the very of the release
sequence for all drivers, and that's still the case. At least without
more uses of drmm_ through
With this we can drop the final kfree from the release function.
The mock device in the selftests needed it's pci_device split
up from the drm_device. In the future we could simplify this again
by allocating the pci_device as a managed allocation too.
v2: I overlooked that i915_driver_destroy is
We might want to look into pushing this down into drm_mm_init, but
that would mean rolling out return codes to a pile of functions
unfortunately. So let's leave that for now.
Signed-off-by: Daniel Vetter
---
drivers/gpu/drm/drm_drv.c | 8 +---
drivers/gpu/drm/drm_gem.c | 21
With this we can drop the final kfree from the release function.
Reviewed-by: Noralf Trønnes
Signed-off-by: Daniel Vetter
Cc: "Noralf Trønnes"
---
drivers/gpu/drm/tiny/repaper.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/tiny/repaper.c
It has become empty. Given the few users I figured not much point
splitting this up.
v2: Rebase over i915 changes.
Signed-off-by: Daniel Vetter
---
drivers/gpu/drm/cirrus/cirrus.c | 1 -
drivers/gpu/drm/drm_drv.c | 23 +--
They all share mipi_dbi_release so we need to switch them all
together. With this we can drop the final kfree from the release
function.
Aside, I think we could perhaps have a tiny additional helper for
these mipi_dbi drivers, the first few lines around devm_drm_dev_init
are all the same (except
With this we can drop the final kfree from the release function.
Reviewed-by: Linus Walleij
Signed-off-by: Daniel Vetter
Cc: Linus Walleij
---
drivers/gpu/drm/mcde/mcde_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c
Well for the simple stuff at least, vblank, gem and minor cleanup I
want to further split up as a demonstration.
v2: We need to clear drm_device->dev otherwise the debug drm printing
after our cleanup hook (e.g. in drm_manged_release) will chase
released memory and result in a use-after-free. Not
A few things:
- Update the example driver in the documentation.
- We can drop the old kfree in drm_dev_release.
- Add a WARN_ON check in drm_dev_register to make sure everyone calls
drmm_add_final_kfree and there's no leaks.
Signed-off-by: Daniel Vetter
---
drivers/gpu/drm/drm_drv.c | 7
With this we can drop the final kfree from the release function.
I also noticed that the unwind code is wrong, after drm_dev_init the
drm_device owns the v3d allocation, so the kfree(v3d) is a double-free.
Reorder the setup to fix this issue.
After a bit more prep in drivers and drm core v3d
With this we can drop the final kfree from the release function.
v2: After drm_dev_init/drmm_add_final_kfree we need to clean up
everything through a drm_dev_put. Rework the unwind code to match
that.
Reviewed-by: Rodrigo Siqueira
Tested-by: Rodrigo Siqueira
Signed-off-by: Daniel Vetter
Cc:
The cleanup here is somewhat tricky, since we can't tell apart the
allocated minor index from 0. So register a cleanup action first, and
if the index allocation fails, unregister that cleanup action again to
avoid bad mistakes.
The kdev for the minor already handles NULL, so no problem there.
With this we can drop the final kfree from the release function.
Signed-off-by: Daniel Vetter
Cc: Dave Airlie
Cc: Gerd Hoffmann
Cc: virtualizat...@lists.linux-foundation.org
Cc: spice-de...@lists.freedesktop.org
---
drivers/gpu/drm/qxl/qxl_drv.c | 2 --
drivers/gpu/drm/qxl/qxl_kms.c | 2 ++
2
With this we can drop the final kfree from the release function.
Acked-by: Jyri Sarha
Signed-off-by: Daniel Vetter
Cc: Jyri Sarha
Cc: Tomi Valkeinen
---
drivers/gpu/drm/tidss/tidss_drv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/tidss/tidss_drv.c
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