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From: Markus Elfring <Markus.Elfring@web.de>
To: Sui Jingfeng <sui.jingfeng@linux.dev>, dri-devel@lists.freedesktop.org
Cc: LKML <linux-kernel@vger.kernel.org>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>
Subject: Re: [PATCH v5 1/2] drm/loongson: Introduce component framework support
Date: Mon, 29 Jul 2024 08:15:12 +0200	[thread overview]
Message-ID: <b4f71869-60e2-4e37-9844-58a4f56b12cb@web.de> (raw)
In-Reply-To: <20240728152858.346211-2-sui.jingfeng@linux.dev>

…
> +++ b/drivers/gpu/drm/loongson/loongson_drv.c
> @@ -0,0 +1,298 @@
…
> +static int loongson_drm_freeze(struct drm_device *ddev)
> +{
…
> +	/* unpin all of buffers in the VRAM */
> +	mutex_lock(&ldrm->gem.mutex);
…
> +	mutex_unlock(&ldrm->gem.mutex);
> +
> +	lsdc_bo_evict_vram(ddev);
…

Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&ldrm->gem.mutex);”?
https://elixir.bootlin.com/linux/v6.10.2/source/include/linux/mutex.h#L196

Regards,
Markus

  reply	other threads:[~2024-07-29  6:15 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-28 15:28 [PATCH v5 0/2] " Sui Jingfeng
2024-07-28 15:28 ` [PATCH v5 1/2] " Sui Jingfeng
2024-07-29  6:15   ` Markus Elfring [this message]
2024-07-29  6:40   ` Markus Elfring
2024-07-30 17:46     ` Sui Jingfeng
2024-07-30 18:16       ` Markus Elfring
2024-07-29  7:37   ` Markus Elfring
2024-07-30 17:39     ` Sui Jingfeng
2024-08-03  3:59   ` kernel test robot
2024-07-28 15:28 ` [PATCH v5 2/2] drm/loongson: Add dummy gpu driver as a subcomponent Sui Jingfeng
2024-07-29  7:15   ` Markus Elfring
2024-07-30 17:57     ` Sui Jingfeng
2024-07-29  7:48   ` Markus Elfring

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