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

drm/vkms: Use offset-adjusted shadow-plane mappings and output

2021-08-08T18:27:52+00:00

For framebuffers with non-zero offset fields, shadow-plane helpers provide a pointer to the first byte of the contained data. Use it in vkms. Also provide use the offset-adjusted data address for the writeback job's output buffers. Output framebuffers with non-zero offsets now have their content written to the correct location. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803125928.27780-12-tzimmermann@suse.de

drm/gem: Provide offset-adjusted framebuffer BO mappings

2021-08-08T18:26:16+00:00

Add an additional argument to drm_gem_fb_vmap() to return each BO's mapping adjusted by the respective offset. Update all callers. The newly returned values point to the first byite of the data stored in the framebuffer BOs. Drivers that access the BO data should use it. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803125928.27780-2-tzimmermann@suse.de

drm/vkms: Map output framebuffer BOs with drm_gem_fb_vmap()

2021-08-02T14:41:20+00:00

Abstract the framebuffer details by mappings its BOs with a call to drm_gem_fb_vmap(). Unmap with drm_gem_fb_vunamp(). Before, the output address with stored as raw pointer in the priv field of struct drm_writeback_job. Introduce the new type struct vkms_writeback_job, which holds the output mappings addresses while the writeback job is active. The patchset also cleans up some internal casting an setup of the output addresses. No functional changes. v3: * free instances of struct vkms_writeback_job on cleanup or errors Signed-off-by: Thomas Zimmermann Reviewed-by: Rodrigo Siqueira Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210730183511.20080-6-tzimmermann@suse.de

drm/vkms: Use dma-buf mapping from shadow-plane state for composing

2021-07-13T11:36:21+00:00

Store the shadow-buffer mapping's address in struct vkms_composer and use the value when composing the output. It's the same value as stored in the GEM SHMEM BO, but frees the composer code from its dependency on GEM SHMEM. Using struct dma_buf_map is how framebuffer access is supposed to be. The long-term plan is to perform all framebuffer access via struct dma_buf_map and avoid the details of accessing I/O and system memory. Signed-off-by: Thomas Zimmermann Reviewed-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210705074633.9425-5-tzimmermann@suse.de

drm/vkms: Let shadow-plane helpers prepare the plane's FB

2021-07-13T11:31:08+00:00

Replace vkms' prepare_fb and cleanup_fb functions with the generic code for shadow-buffered planes. No functional changes. This change also fixes a problem where IGT kms_flip tests would create a segmentation fault within vkms. The driver's prepare_fb function did not report an error if a BO's vmap operation failed. The kernel later tried to operate on the non-mapped memory areas. The shared shadow-plane helpers handle errors correctly, so that the driver now avoids the segmantation fault. v2: * include paragraph about IGT tests in commit message (Melissa) Signed-off-by: Thomas Zimmermann Reviewed-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210705074633.9425-4-tzimmermann@suse.de

drm/vkms: Inherit plane state from struct drm_shadow_plane_state

2021-07-13T11:31:05+00:00

Subclass struct drm_shadow_plane_state for VKMS planes and update all plane-state callbacks accordingly. Signed-off-by: Thomas Zimmermann Reviewed-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210705074633.9425-3-tzimmermann@suse.de

drm/vkms: Create a debugfs file to get vkms config data

2021-07-08T20:44:13+00:00

Creating a vkms_config debugfs file in vkms_drv.c to get/track vkms config data, for the long-term plan of making vkms configurable and have multiple different instances. Reviewed-by: Melissa Wen Signed-off-by: Beatriz Martins de Carvalho Signed-off-by: Melissa Wen Link: https://patchwork.freedesktop.org/patch/msgid/20210708092002.11847-1-martinsdecarvalhobeatriz@gmail.com

drm/vkms: replace macro in vkms_release()

2021-07-06T21:48:50+00:00

Replace macro in vkms_release() Signed-off-by: Beatriz Martins de Carvalho Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210706154510.224695-1-martinsdecarvalhobeatriz@gmail.com

drm/vkms: Don't set struct drm_device.irq_enabled

2021-06-29T13:40:52+00:00

The field drm_device.irq_enabled is only used by legacy drivers with userspace modesetting. Don't set it in vkms. Signed-off-by: Thomas Zimmermann Reviewed-by: Melissa Wen Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20210625082222.3845-25-tzimmermann@suse.de

drm/vkms: add overlay support

2021-04-29T21:53:05+00:00

Add support to overlay plane, in addition to primary and cursor planes. In this approach, the plane composition still requires an active primary plane and planes are composed associatively in the order: (primary <- overlay) <- cursor It enables to run the following IGT tests successfully: - kms_plane_cursor: - pipe-A-[overlay, primary, viewport]-size-[64, 128, 256] - kms_atomic: - plane-overlay-legacy and preserves the successful execution of kms_cursor_crc, kms_writeback and kms_flip Signed-off-by: Melissa Wen Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/8261bf93d8a0e3ffaf81d8e7c9b3e9c229116be3.1619250933.git.melissa.srw@gmail.com