mirror of https://gitee.com/openkylin/linux.git
bf8744e40c
Lots of code can be removed by relying on fb-helper: - "struct drm_framebuffer" moves to fb_helper.fb. - "struct drm_gem_object" moves to fb_helper.obj[0]. - "struct qxl_device" can be inferred as drm_fb_helper is embedded. - qxl_user_framebuffer_create -> drm_gem_fb_create. - qxl_user_framebuffer_destroy -> drm_gem_fb_destroy. - qxl_fbdev_destroy -> drm_fb_helper_fbdev_teardown + vfree(shadow). Remove unused code: - qxl_fbdev_qobj_is_fb, qxl_fbdev_set_suspend. - Unused fields of qxl_fbdev: delayed_ops, delayed_ops_lock, size. Misc notes: - The dirty callback is preserved as it is necessary to trigger update commands in the hw (the screen stays black otherwise). - No idea when .create_handle in drm_framebuffer_funcs is used, but use the same drm_gem_fb_create_handle to match drm_gem_fb_funcs. - I don't know why qxl_fb_find_or_create_single used to check for an existing framebuffer and removed that check to match other drivers. - Use of drm_fb_helper_fbdev_teardown also requires "info->fbdefio" to be dynamically allocated. Replace the existing defio config by drm_fb_helper_defio_init to accomodate this. Testing results: startx with fbdev, modesetting and qxl all seems to work. Tested also with CONFIG_DRM_FBDEV_EMULATION=n, fbdev obviously fails but others are fine. QEMU -spice and QEMU -spice with vdagent and multiple (resized) displays (via remote-viewer) also works. unbind vtconsole and rmmod has *not* regressed (i.e. it still trips on a use-after-free in qxl_check_idle via qxl_ttm_fini). Ideally setup/teardown is replaced by drm_fbdev_generic_setup as that would result in further code reduction, improve error handling (like not leaking shadow memory), but unfortunately QXL has no implementation for qxl_gem_prime_vmap. Signed-off-by: Peter Wu <peter@lekensteyn.nl> Link: http://patchwork.freedesktop.org/patch/msgid/20180910132156.23201-1-peter@lekensteyn.nl Signed-off-by: Gerd Hoffmann <kraxel@redhat.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_gem.c | ||
| qxl_image.c | ||
| qxl_ioctl.c | ||
| qxl_irq.c | ||
| qxl_kms.c | ||
| qxl_object.c | ||
| qxl_object.h | ||
| qxl_prime.c | ||
| qxl_release.c | ||
| qxl_ttm.c | ||