TTM is an implementation detail of the VRAM helpers and therefore shouldn't be exposed to the callers. There's only one correct value for the BO device anyway, which is the one stored in the DRM device. So remove struct ttm_bo_device from the VRAM-helper interface and use the device's VRAM manager unconditionally. The GEM initializer function fails if the VRAM manager has not been initialized. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200106125745.13797-8-tzimmermann@suse.de
170 lines
4.1 KiB
C
170 lines
4.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright 2012 Red Hat
|
|
*
|
|
* Authors: Matthew Garrett
|
|
* Dave Airlie
|
|
*/
|
|
|
|
#include <linux/console.h>
|
|
#include <linux/module.h>
|
|
#include <linux/pci.h>
|
|
|
|
#include <drm/drm_drv.h>
|
|
#include <drm/drm_file.h>
|
|
#include <drm/drm_ioctl.h>
|
|
#include <drm/drm_pciids.h>
|
|
|
|
#include "mgag200_drv.h"
|
|
|
|
/*
|
|
* This is the generic driver code. This binds the driver to the drm core,
|
|
* which then performs further device association and calls our graphics init
|
|
* functions
|
|
*/
|
|
int mgag200_modeset = -1;
|
|
|
|
MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
|
|
module_param_named(modeset, mgag200_modeset, int, 0400);
|
|
|
|
static struct drm_driver driver;
|
|
|
|
static const struct pci_device_id pciidlist[] = {
|
|
{ PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
|
G200_SE_A | MGAG200_FLAG_HW_BUG_NO_STARTADD},
|
|
{ PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
|
|
{ PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
|
|
{ PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
|
|
{ PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
|
|
{ PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
|
|
{ PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 },
|
|
{ PCI_VENDOR_ID_MATROX, 0x538, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH3 },
|
|
{0,}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, pciidlist);
|
|
|
|
|
|
static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
struct drm_device *dev;
|
|
int ret;
|
|
|
|
drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "mgag200drmfb");
|
|
|
|
ret = pci_enable_device(pdev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dev = drm_dev_alloc(&driver, &pdev->dev);
|
|
if (IS_ERR(dev)) {
|
|
ret = PTR_ERR(dev);
|
|
goto err_pci_disable_device;
|
|
}
|
|
|
|
dev->pdev = pdev;
|
|
pci_set_drvdata(pdev, dev);
|
|
|
|
ret = mgag200_driver_load(dev, ent->driver_data);
|
|
if (ret)
|
|
goto err_drm_dev_put;
|
|
|
|
ret = drm_dev_register(dev, ent->driver_data);
|
|
if (ret)
|
|
goto err_mgag200_driver_unload;
|
|
|
|
return 0;
|
|
|
|
err_mgag200_driver_unload:
|
|
mgag200_driver_unload(dev);
|
|
err_drm_dev_put:
|
|
drm_dev_put(dev);
|
|
err_pci_disable_device:
|
|
pci_disable_device(pdev);
|
|
return ret;
|
|
}
|
|
|
|
static void mga_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
|
|
|
drm_dev_unregister(dev);
|
|
mgag200_driver_unload(dev);
|
|
drm_dev_put(dev);
|
|
}
|
|
|
|
DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
|
|
|
|
static bool mgag200_pin_bo_at_0(const struct mga_device *mdev)
|
|
{
|
|
return mdev->flags & MGAG200_FLAG_HW_BUG_NO_STARTADD;
|
|
}
|
|
|
|
int mgag200_driver_dumb_create(struct drm_file *file,
|
|
struct drm_device *dev,
|
|
struct drm_mode_create_dumb *args)
|
|
{
|
|
struct mga_device *mdev = dev->dev_private;
|
|
unsigned long pg_align;
|
|
|
|
if (WARN_ONCE(!dev->vram_mm, "VRAM MM not initialized"))
|
|
return -EINVAL;
|
|
|
|
pg_align = 0ul;
|
|
|
|
/*
|
|
* Aligning scanout buffers to the size of the video ram forces
|
|
* placement at offset 0. Works around a bug where HW does not
|
|
* respect 'startadd' field.
|
|
*/
|
|
if (mgag200_pin_bo_at_0(mdev))
|
|
pg_align = PFN_UP(mdev->mc.vram_size);
|
|
|
|
return drm_gem_vram_fill_create_dumb(file, dev, pg_align, 0, args);
|
|
}
|
|
|
|
static struct drm_driver driver = {
|
|
.driver_features = DRIVER_GEM | DRIVER_MODESET,
|
|
.fops = &mgag200_driver_fops,
|
|
.name = DRIVER_NAME,
|
|
.desc = DRIVER_DESC,
|
|
.date = DRIVER_DATE,
|
|
.major = DRIVER_MAJOR,
|
|
.minor = DRIVER_MINOR,
|
|
.patchlevel = DRIVER_PATCHLEVEL,
|
|
.debugfs_init = drm_vram_mm_debugfs_init,
|
|
.dumb_create = mgag200_driver_dumb_create,
|
|
.dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset,
|
|
.gem_prime_mmap = drm_gem_prime_mmap,
|
|
};
|
|
|
|
static struct pci_driver mgag200_pci_driver = {
|
|
.name = DRIVER_NAME,
|
|
.id_table = pciidlist,
|
|
.probe = mga_pci_probe,
|
|
.remove = mga_pci_remove,
|
|
};
|
|
|
|
static int __init mgag200_init(void)
|
|
{
|
|
if (vgacon_text_force() && mgag200_modeset == -1)
|
|
return -EINVAL;
|
|
|
|
if (mgag200_modeset == 0)
|
|
return -EINVAL;
|
|
|
|
return pci_register_driver(&mgag200_pci_driver);
|
|
}
|
|
|
|
static void __exit mgag200_exit(void)
|
|
{
|
|
pci_unregister_driver(&mgag200_pci_driver);
|
|
}
|
|
|
|
module_init(mgag200_init);
|
|
module_exit(mgag200_exit);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|