kernel/linux.git/drivers/gpu/drm/xen, branch v5.17.9

Merge v5.16-rc5 into drm-next

2021-12-14T09:24:28+00:00

Thomas Zimmermann requested a fixes backmerge, specifically also for 96c5f82ef0a1 ("drm/vc4: fix error code in vc4_create_object()") Just a bunch of adjacent changes conflicts, even the big pile of them in vc4. Signed-off-by: Daniel Vetter

xen: flag xen_drm_front to be not essential for system boot

2021-11-23T19:41:55+00:00

Similar to the virtual frame buffer (vfb) the pv display driver is not essential for booting the system. Set the respective flag. Signed-off-by: Juergen Gross Reviewed-by: Oleksandr Andrushchenko Reviewed-by: Boris Ostrovsky Link: https://lore.kernel.org/r/20211022064800.14978-3-jgross@suse.com Signed-off-by: Boris Ostrovsky

drm/xen: Implement mmap as GEM object function

2021-11-11T11:06:57+00:00

Moving the driver-specific mmap code into a GEM object function allows for using DRM helpers for various mmap callbacks. The respective xen functions are being removed. The file_operations structure fops is now being created by the helper macro DEFINE_DRM_GEM_FOPS(). Signed-off-by: Thomas Zimmermann Reviewed-by: Oleksandr Andrushchenko Link: https://patchwork.freedesktop.org/patch/msgid/20211108102846.309-3-tzimmermann@suse.de

drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default

2021-06-24T13:40:11+00:00

Goes through all the drivers and deletes the default hook since it's the default now. Acked-by: David Lechner Acked-by: Noralf Trønnes Acked-by: Oleksandr Andrushchenko Acked-by: Linus Walleij Signed-off-by: Daniel Vetter Cc: Joel Stanley Cc: Andrew Jeffery Cc: "Noralf Trønnes" Cc: Linus Walleij Cc: Emma Anholt Cc: David Lechner Cc: Kamlesh Gurudasani Cc: Oleksandr Andrushchenko Cc: Daniel Vetter Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: Sam Ravnborg Cc: Alex Deucher Cc: Andy Shevchenko Cc: linux-aspeed@lists.ozlabs.org Cc: linux-arm-kernel@lists.infradead.org Cc: xen-devel@lists.xenproject.org Link: https://patchwork.freedesktop.org/patch/msgid/20210622165511.3169559-14-daniel.vetter@ffwll.ch

Merge drm/drm-fixes into drm-next

2021-04-13T21:15:09+00:00

msm-next pull request has a baseline with stuff from -fixes, roll forward first. Some simple conflicts in amdgpu, ttm and one in i915 where git gets confused and tries to add the same function twice. Signed-off-by: Daniel Vetter

drivers: gpu: drm: xen_drm_front_drm_info is declared twice

2021-03-26T05:40:10+00:00

struct xen_drm_front_drm_info has been declared. Remove the duplicate. Signed-off-by: Wan Jiabing Reviewed-by: Oleksandr Andrushchenko Signed-off-by: Oleksandr Andrushchenko Link: https://patchwork.freedesktop.org/patch/msgid/20210325061901.851273-1-wanjiabing@vivo.com

gpu/xen: Fix a use after free in xen_drm_drv_init

2021-03-26T05:40:03+00:00

In function displback_changed, has the call chain displback_connect(front_info)->xen_drm_drv_init(front_info). We can see that drm_info is assigned to front_info->drm_info and drm_info is freed in fail branch in xen_drm_drv_init(). Later displback_disconnect(front_info) is called and it calls xen_drm_drv_fini(front_info) cause a use after free by drm_info = front_info->drm_info statement. My patch has done two things. First fixes the fail label which drm_info = kzalloc() failed and still free the drm_info. Second sets front_info->drm_info to NULL to avoid uaf. Signed-off-by: Lv Yunlong Reviewed-by: Oleksandr Andrushchenko Signed-off-by: Oleksandr Andrushchenko Link: https://patchwork.freedesktop.org/patch/msgid/20210323014656.10068-1-lyl2019@mail.ustc.edu.cn

drm/xen: adjust Kconfig

2021-03-01T06:03:45+00:00

By having selected DRM_XEN, I was assuming I would build the frontend driver. As it turns out this is a dummy option, and I have really not been building this (because I had DRM disabled). Make it a promptless one, moving the "depends on" to the other, real option, and "select"ing the dummy one. Signed-off-by: Jan Beulich Reviewed-by: Oleksandr Andrushchenko Signed-off-by: Oleksandr Andrushchenko Link: https://patchwork.freedesktop.org/patch/msgid/54ae54f9-1ba9-900b-a56f-f48e2c9a82b0@suse.com

drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers

2021-02-23T07:54:22+00:00

The function drm_gem_fb_prepare_fb() is a helper for atomic modesetting, but currently located next to framebuffer helpers. Move it to GEM atomic helpers, rename it slightly and adopt the drivers. Same for the rsp simple-pipe helper. Compile-tested with x86-64, aarch64 and arm. The patch is fairly large, but there are no functional changes. v3: * remove out-comented line in drm_gem_framebuffer_helper.h (Maxime) v2: * rename to drm_gem_plane_helper_prepare_fb() (Daniel) * add tutorial-style documentation Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210222141756.7864-1-tzimmermann@suse.de

drm/prime: split array import functions v4

2020-11-30T14:00:45+00:00

Mapping the imported pages of a DMA-buf into an userspace process doesn't work as expected. But we have reoccurring requests on this approach, so split the functions for this and document that dma_buf_mmap() needs to be used instead. v2: split it into two functions v3: rebased on latest changes v4: update commit message a bit Signed-off-by: Christian König Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/403838/