linux_dsm_epyc7002/drivers/gpu/drm/tegra/bus.c
Daniel Vetter 5829d1834e drm: rip out dev->devname
This was only ever used to pretty-print the irq driver name. And on
kms systems due to set_version bonghits we never set up the prettier
name, ever. Which make this a bit pointless.

Also, we can always dig out the driver-instance/irq relationship
through other means, so this isn't that useful. So just rip it out to
simplify the set_version/set_busid insanity a bit.

Also delete the temporary busname from drm_pci_set_busid, it's now
unused.

v2: Rebase on top of the new host1x drm_bus for tegra.

Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-23 10:32:52 +02:00

65 lines
1.4 KiB
C

/*
* Copyright (C) 2013 NVIDIA Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "drm.h"
static int drm_host1x_set_busid(struct drm_device *dev,
struct drm_master *master)
{
const char *device = dev_name(dev->dev);
const char *bus = dev->dev->bus->name;
master->unique_len = strlen(bus) + 1 + strlen(device);
master->unique_size = master->unique_len;
master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL);
if (!master->unique)
return -ENOMEM;
snprintf(master->unique, master->unique_len + 1, "%s:%s", bus, device);
return 0;
}
static struct drm_bus drm_host1x_bus = {
.set_busid = drm_host1x_set_busid,
};
int drm_host1x_init(struct drm_driver *driver, struct host1x_device *device)
{
struct drm_device *drm;
int ret;
driver->bus = &drm_host1x_bus;
drm = drm_dev_alloc(driver, &device->dev);
if (!drm)
return -ENOMEM;
ret = drm_dev_register(drm, 0);
if (ret)
goto err_free;
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", driver->name,
driver->major, driver->minor, driver->patchlevel,
driver->date, drm->primary->index);
return 0;
err_free:
drm_dev_unref(drm);
return ret;
}
void drm_host1x_exit(struct drm_driver *driver, struct host1x_device *device)
{
struct tegra_drm *tegra = dev_get_drvdata(&device->dev);
drm_put_dev(tegra->drm);
}