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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6796cb16c0
DRM drivers share a common address_space across all character-devices of a
single DRM device. This allows simple buffer eviction and mapping-control.
However, DRM core currently waits for the first ->open() on any char-dev
to mark the underlying inode as backing inode of the device. This delayed
initialization causes ugly conditions all over the place:
if (dev->dev_mapping)
do_sth();
To avoid delayed initialization and to stop reusing the inode of the
char-dev, we allocate an anonymous inode for each DRM device and reset
filp->f_mapping to it on ->open().
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
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| .. | ||
| Kconfig | ||
| Makefile | ||
| qxl_cmd.c | ||
| qxl_debugfs.c | ||
| qxl_dev.h | ||
| qxl_display.c | ||
| qxl_draw.c | ||
| qxl_drv.c | ||
| qxl_drv.h | ||
| qxl_dumb.c | ||
| qxl_fb.c | ||
| qxl_fence.c | ||
| qxl_gem.c | ||
| qxl_image.c | ||
| qxl_ioctl.c | ||
| qxl_irq.c | ||
| qxl_kms.c | ||
| qxl_object.c | ||
| qxl_object.h | ||
| qxl_release.c | ||
| qxl_ttm.c | ||