From: "Maíra Canal" <mcanal@igalia.com>
To: "Maxime Ripard" <mripard@kernel.org>,
"Dave Stevenson" <dave.stevenson@raspberrypi.com>,
"Raspberry Pi Kernel Maintenance" <kernel-list@raspberrypi.com>,
"Stefan Wahren" <wahrenst@gmx.net>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Florian Fainelli" <florian.fainelli@broadcom.com>,
"Ray Jui" <rjui@broadcom.com>,
"Scott Branden" <sbranden@broadcom.com>,
"Broadcom internal kernel review list"
<bcm-kernel-feedback-list@broadcom.com>,
"Maíra Canal" <mcanal@igalia.com>
Cc: kernel-dev@igalia.com, dri-devel@lists.freedesktop.org,
devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Subject: Re: [PATCH v2 0/4] drm/vc4: Reset the V3D block through the reset controller
Date: Fri, 18 Sep 2026 15:55:09 -0300 [thread overview]
Message-ID: <178975770640.2754751.4760048743026029481.b4-ty@igalia.com> (raw)
In-Reply-To: <20260915-vc4-reset-control-v2-0-cb3a25b07822@igalia.com>
On Tue, 15 Sep 2026 17:51:23 -0300, Maíra Canal wrote:
> vc4_reset() recovers a hung GPU by dropping the runtime PM usage count to
> zero so that the V3D power domain goes down, and then taking it again.
> Forcing the count to zero only works if the driver knows exactly how many
> references it holds, which is why vc4 unconventionaly wraps every
> pm_runtime_get_sync() call in a private refcount and mutex, making the
> code cumbersome.
>
> [...]
Applied, thanks!
[1/4] drm/vc4: Drop the undocumented brcm,vc4-v3d compatible
commit: fb825a46e7982460bd620f5e6a71924c647f4280
[2/4] dt-bindings: display: bcm2835-v3d: Add an optional reset line
commit: 6ab4aad3481903ac3743513517c290a3ebd39232
[3/4] drm/vc4: Use the reset controller to recover from a GPU hang
commit: b4448823f151d0b4a3f3f4c5622c6ade51422c4e
[4/4] ARM: dts: bcm2835: Add the V3D reset line
commit: 3afbeb6b99ddbe082a238a659b7e7a7239f49e0e
Best regards,
- Maíra
prev parent reply other threads:[~2026-09-18 18:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-15 20:51 [PATCH v2 0/4] drm/vc4: Reset the V3D block through the reset controller Maíra Canal
2026-09-15 20:51 ` [PATCH v2 1/4] drm/vc4: Drop the undocumented brcm,vc4-v3d compatible Maíra Canal
2026-09-15 20:51 ` [PATCH v2 2/4] dt-bindings: display: bcm2835-v3d: Add an optional reset line Maíra Canal
2026-09-18 8:55 ` Krzysztof Kozlowski
2026-09-15 20:51 ` [PATCH v2 3/4] drm/vc4: Use the reset controller to recover from a GPU hang Maíra Canal
2026-09-15 20:51 ` [PATCH v2 4/4] ARM: dts: bcm2835: Add the V3D reset line Maíra Canal
2026-09-18 18:55 ` Maíra Canal [this message]
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