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drm/lima: allocate unique id per drm_file

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To track if fds are pointing to the same execution context and export
the expected information to fdinfo, similar to what is done in other
drivers.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230312233052.21095-3-nunes.erico@gmail.com
This commit is contained in:
Erico Nunes 2023-03-13 00:30:51 +01:00 committed by Qiang Yu
parent bccafec957
commit 87767de835
3 changed files with 16 additions and 0 deletions
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3
drivers/gpu/drm/lima/lima_device.h
View File

@ -106,6 +106,9 @@ struct lima_device {
struct lima_dump_head dump;
struct list_head error_task_list;
struct mutex error_task_list_lock;
struct xarray active_contexts;
u32 next_context_id;
};
static inline struct lima_device *

12
drivers/gpu/drm/lima/lima_drv.c
View File

@ -218,6 +218,11 @@ static int lima_drm_driver_open(struct drm_device *dev, struct drm_file *file)
if (!priv)
return -ENOMEM;
err = xa_alloc_cyclic(&ldev->active_contexts, &priv->id, priv,
xa_limit_32b, &ldev->next_context_id, GFP_KERNEL);
if (err < 0)
goto err_out0;
priv->vm = lima_vm_create(ldev);
if (!priv->vm) {
err = -ENOMEM;
@ -237,6 +242,9 @@ err_out0:
static void lima_drm_driver_postclose(struct drm_device *dev, struct drm_file *file)
{
struct lima_drm_priv *priv = file->driver_priv;
struct lima_device *ldev = to_lima_dev(dev);
xa_erase(&ldev->active_contexts, priv->id);
lima_ctx_mgr_fini(&priv->ctx_mgr);
lima_vm_put(priv->vm);
@ -388,6 +396,8 @@ static int lima_pdev_probe(struct platform_device *pdev)
ldev->dev = &pdev->dev;
ldev->id = (enum lima_gpu_id)of_device_get_match_data(&pdev->dev);
xa_init_flags(&ldev->active_contexts, XA_FLAGS_ALLOC);
platform_set_drvdata(pdev, ldev);
/* Allocate and initialize the DRM device. */
@ -446,6 +456,8 @@ static int lima_pdev_remove(struct platform_device *pdev)
struct lima_device *ldev = platform_get_drvdata(pdev);
struct drm_device *ddev = ldev->ddev;
xa_destroy(&ldev->active_contexts);
sysfs_remove_bin_file(&ldev->dev->kobj, &lima_error_state_attr);
drm_dev_unregister(ddev);

1
drivers/gpu/drm/lima/lima_drv.h
View File

@ -20,6 +20,7 @@ struct lima_sched_task;
struct drm_lima_gem_submit_bo;
struct lima_drm_priv {
int id;
struct lima_vm *vm;
struct lima_ctx_mgr ctx_mgr;
};