From: Markus Elfring <Markus.Elfring@web.de>
To: "Tomeu Vizoso" <tomeu@tomeuvizoso.net>,
dri-devel@lists.freedesktop.org,
linux-rockchip@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linaro-mm-sig@lists.linaro.org,
"Christian König" <christian.koenig@amd.com>,
"Conor Dooley" <conor+dt@kernel.org>,
"David Airlie" <airlied@gmail.com>,
"Heiko Stübner" <heiko@sntech.de>,
"Jeff Hugo" <jeff.hugo@oss.qualcomm.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Nicolas Frattaroli" <nicolas.frattaroli@collabora.com>,
"Oded Gabbay" <ogabbay@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Sebastian Reichel" <sebastian.reichel@collabora.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>
Cc: LKML <linux-kernel@vger.kernel.org>, linux-doc@vger.kernel.org
Subject: Re: [PATCH v4 06/10] accel/rocket: Add IOCTL for BO creation
Date: Fri, 30 May 2025 21:23:15 +0200 [thread overview]
Message-ID: <cc0b88b2-c34a-4d19-a222-afc2cbfe8055@web.de> (raw)
In-Reply-To: <20250519-6-10-rocket-v4-6-d6dff6b4c0ae@tomeuvizoso.net>
…
> +++ b/drivers/accel/rocket/rocket_gem.c
> @@ -0,0 +1,131 @@
…
> +static void rocket_gem_bo_free(struct drm_gem_object *obj)
> +{
…
> + mutex_lock(&rdev->iommu_lock);
> +
> + sgt = drm_gem_shmem_get_pages_sgt(&bo->base);
…
> + drm_gem_shmem_free(&bo->base);
> +
> + mutex_unlock(&rdev->iommu_lock);
> +}
…
Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&rdev->iommu_lock);”?
https://elixir.bootlin.com/linux/v6.15/source/include/linux/mutex.h#L201
Regards,
Markus
next prev parent reply other threads:[~2025-05-30 19:24 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-19 13:43 [PATCH v4 00/10] New DRM accel driver for Rockchip's RKNN NPU Tomeu Vizoso
2025-05-19 13:43 ` [PATCH v4 01/10] dt-bindings: npu: rockchip,rknn: Add bindings Tomeu Vizoso
2025-05-20 7:33 ` Krzysztof Kozlowski
2025-05-19 13:43 ` [PATCH v4 02/10] arm64: dts: rockchip: Add nodes for NPU and its MMU to rk3588s Tomeu Vizoso
2025-05-19 13:43 ` [PATCH v4 03/10] arm64: dts: rockchip: Enable the NPU on quartzpro64 Tomeu Vizoso
2025-05-19 13:43 ` [PATCH v4 04/10] accel/rocket: Add registers header Tomeu Vizoso
2025-05-19 13:43 ` [PATCH v4 05/10] accel/rocket: Add a new driver for Rockchip's NPU Tomeu Vizoso
2025-05-20 7:37 ` Krzysztof Kozlowski
2025-05-19 13:43 ` [PATCH v4 06/10] accel/rocket: Add IOCTL for BO creation Tomeu Vizoso
2025-05-30 19:23 ` Markus Elfring [this message]
2025-05-19 13:43 ` [PATCH v4 07/10] accel/rocket: Add job submission IOCTL Tomeu Vizoso
2025-05-19 13:43 ` [PATCH v4 08/10] accel/rocket: Add IOCTLs for synchronizing memory accesses Tomeu Vizoso
2025-05-19 13:43 ` [PATCH v4 09/10] arm64: dts: rockchip: add pd_npu label for RK3588 power domains Tomeu Vizoso
2025-05-19 13:43 ` [PATCH v4 10/10] arm64: dts: rockchip: enable NPU on ROCK 5B Tomeu Vizoso
2025-05-30 18:50 ` [PATCH v4 00/10] New DRM accel driver for Rockchip's RKNN NPU Jagan Teki
2025-06-01 6:41 ` Tomeu Vizoso
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