kernel/linux.git/drivers/accel/drm_accel.c, branch v6.18.21

drm: move drm based debugfs funcs to drm_debugfs.c

2025-07-04T13:58:22+00:00

Requirement is to create per client-id based directories to hold key debugging information and for that access to root debugfs dentry is need which is not in one place and that information cannot be stored in drm_device. Move the debugfs functionality from drm_drv.c and drm_accel.c to drm_debugfs.c This enables debugfs root node reference directly drm_debugfs.c and hence enable to create per client-id directory. v8: Create drm_accel dentry only if it's config is enabled (Jeff, Hugo) v8: Merge drm_drv and drm_accel debugfs patches (Koenig, Christian) v10: Since we moved drm_debugfs_root, hence to handle drm bridge debugfs add a new function which call drm_bridge_debugfs_params where drm_debugfs_root is accessible. Suggested-by: Christian König Signed-off-by: Sunil Khatri Link: https://lore.kernel.org/r/20250704075548.1549849-2-sunil.khatri@amd.com Reviewed-by: Christian König Signed-off-by: Christian König

accel: Use XArray instead of IDR for minors

2024-08-26T15:06:22+00:00

Accel minor management is based on DRM (and is also using struct drm_minor internally), since DRM is using XArray for minors, it makes sense to also convert accel. As the two implementations are identical (only difference being the underlying xarray), move the accel_minor_* functionality to DRM. Signed-off-by: Michał Winiarski Acked-by: James Zhu Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20240823163048.2676257-3-michal.winiarski@intel.com Signed-off-by: Christian König

accel: constify the struct device_type usage

2024-02-26T07:59:18+00:00

Since commit aed65af1cc2f ("drivers: make device_type const"), the driver core can properly handle constant struct device_type. Move the accel_sysfs_device_minor variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman Signed-off-by: Ricardo B. Marliere Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

accel: Include

2023-12-06T09:08:09+00:00

One of the source files includes via , which will be removed. Include drm_auth.h directly. Signed-off-by: Thomas Zimmermann Cc: Oded Gabbay Reviewed-by: David Airlie Reviewed-by: Daniel Vetter Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20231122122449.11588-6-tzimmermann@suse.de

accel: make accel_class a static const structure

2023-10-09T09:37:19+00:00

Now that the driver core allows for struct class to be in read-only memory, move the accel_class structure to be declared at build time placing it into read-only memory, instead of having to be dynamically allocated at boot time. Cc: dri-devel@lists.freedesktop.org Suggested-by: Greg Kroah-Hartman Signed-off-by: Ivan Orlov Signed-off-by: Greg Kroah-Hartman Reviewed-by: Tomer Tayar Signed-off-by: Oded Gabbay

drm/debugfs: rework drm_debugfs_create_files implementation v2

2023-09-01T06:54:12+00:00

Use managed memory allocation for this. That allows us to not keep track of all the files any more. v2: keep drm_debugfs_cleanup(), but rename to drm_debugfs_unregister(), we still need to cleanup the symlink Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-6-christian.koenig@amd.com Reviewed-by: Andi Shyti

drm/debugfs: rework debugfs directory creation v5

2023-09-01T06:51:18+00:00

Instead of the per minor directories only create a single debugfs directory for the whole device directly when the device is initialized. For DRM devices each minor gets a symlink to the per device directory for now until we can be sure that this isn't useful any more in any way. Accel devices create only the per device directory and also drops the mid layer callback to create driver specific files. v2: cleanup accel component as well v3: fix typo when debugfs is disabled v4: call drm_debugfs_dev_fini() during release as well, some kerneldoc typos fixed v5: rebased and one more kerneldoc fix Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-4-christian.koenig@amd.com Reviewed-by: Andi Shyti

drm/debugfs: drop debugfs_init() for the render and accel node v2

2023-08-31T15:00:10+00:00

We want to remove per minor debugfs directories. Start by stopping drivers from adding anything inside of those in the mid layer callback. v2: drop it for the accel node as well Signed-off-by: Christian König Tested-by: Stanislaw Gruszka Reviewed-by: Andi Shyti Link: https://patchwork.freedesktop.org/patch/msgid/20230829110115.3442-2-christian.koenig@amd.com

driver core: class: remove module * from class_create()

2023-03-17T14:16:33+00:00

The module pointer in class_create() never actually did anything, and it shouldn't have been requred to be set as a parameter even if it did something. So just remove it and fix up all callers of the function in the kernel tree at the same time. Cc: "Rafael J. Wysocki" Acked-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

Fix mismerge due to devnode now taking a 'const *' device

2022-12-16T19:04:15+00:00

This was a mismerge of a semantic conflict in my merge of the driver core updates, where commit ff62b8e6588f ("driver core: make struct class.devnode() take a const *") changed the devnode function pointer type. In the meantime, the drm tree I merged earlier had introduced a new use of that in commit 8bf4889762a8 ("drivers/accel: define kconfig and register a new major"). And of course this happens when I'm traveling with my laptop, and thus didn't do a full allmodconfig build between every pull and before pushing my work out. So I only noticed later as I was doing my full build. Brown-paper-bag-by: Linus Torvalds Fixes: 71a7507afbc3 Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Signed-off-by: Linus Torvalds