linux-dev/drivers/gpu/drm/mgag200/Makefile, branch master

drm/mgag200: Provide per-device callbacks for PIXPLLC

2022-07-29T14:01:47Z

Move the PIXPLLC code into per-model source files and wire it up with per-model callbacks. No functional changes. The PIXPLLC pixel-clock is part of the CRTC, but really separate hardware that varies with each model of the G200. Move the PIXPLLC code for each model into the per-model source file and call it from CRTC helpers via device functions. This allows to remove struct mgag200_pll and the related code. The new callbacks behave like the CRTC's atomic_check and atomic_enable functions. v3: * clean up style Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220728124103.30159-12-tzimmermann@suse.de

drm/mgag200: Provide per-device callbacks for BMC synchronization

2022-07-29T14:01:47Z

Move the BMC-related code into its own file and wire it up with device callbacks. While programming a new display mode, G200EW3 and G200WB have to de- synchronize with the BMC. Synchronization is done via VIDRST pins and controlled via VRSTEN and HRSTEN bits. Move the BMC code behind a serviceable interface and call it from the CRTC's enable and disable functions. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220728124103.30159-11-tzimmermann@suse.de

drm/mgag200: Implement new init logic

2022-06-07T07:39:54Z

Rework mgag200_regs_init() and mgag200_mm_init() into device preinit and init functions. The preinit function, mgag200_device_preinit(), requests and maps a device's I/O and video memory. The init function, mgag200_device_init() initializes the state of struct mga_device. Splitting the initialization between the two functions is necessary to perform per-model operations between the two calls, such as reading the unique revision ID on G200SEs. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20220601112522.5774-6-tzimmermann@suse.de

drm/mgag200: Initialize each model in separate function

2022-06-07T07:39:44Z

Add a separate initializer function for each model. Add separate devic structures for G200 and G200SE, which require additional information. Also move G200's and G200SE's helpers for reading the BIOS and version id into model-specific code. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Tested-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20220601112522.5774-3-tzimmermann@suse.de

drm/mgag200: Abstract pixel PLL via struct mgag200_pll

2021-08-08T18:14:05Z

Move all PLL compute and update functions into mgag200_pll.c. No functional changes to the rsp algorithms. Introduce struct mgag200_pll and mgag200_pll_funcs. The data strutures abstract the details of each revision's PLL. Perform calls to compute and update functionality via function pointers. Init the PLL once as part of the driver initialization. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210714142240.21979-11-tzimmermann@suse.de

drm/mgag200: Move device init and cleanup to mgag200_drv.c

2020-06-11T08:06:00Z

Moving the initializer and cleanup functions for device instances to mgag200_drv.c prepares for the conversion to managed code. No functional changes are made. Remove mgag200_main.c, which is now empty. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200605135803.19811-11-tzimmermann@suse.de

drm/mgag200: Rename mgag200_ttm.c to mgag200_mm.c

2020-06-11T08:05:38Z

The mgag200 driver does not use TTM any longer. Rename the related file to mgag200_mm.c (as in 'memory management'). Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200605135803.19811-5-tzimmermann@suse.de

drm/mgag200: Remove HW cursor

2020-05-19T07:41:32Z

The HW cursor of Matrox G200 cards only supports a 16-color palette format. Univeral planes require at least ARGB or a similar component- based format, so remove the HW cursor. Alternatively, the driver could dither a cursor image from ARGB to 16 colors. But this does not produce pleasent-looking results in general, so it's useless for modern compositors. Without HW support, compositors will use software rendering. Signed-off-by: Thomas Zimmermann Tested-by: John Donnelly Acked-by: Sam Ravnborg Acked-by: Emil Velikov Link: https://patchwork.freedesktop.org/patch/msgid/20200515083233.32036-2-tzimmermann@suse.de

drm/mgag200: Replace struct mga_fbdev with generic framebuffer emulation

2019-07-09T08:25:47Z

This patch replaces mgag200's framebuffer console with DRM's generic implememtation. All respective code is being removed from the driver. The console is set up with a shadow buffer. The actual buffer object is not permanently pinned in video ram, but just another buffer object that the driver moves in and out of vram as necessary. The driver's function mga_crtc_do_set_base() used to contain special handling for the framebuffer console. With the new generic framebuffer, the driver does not need this code an longer. For consistency, this patch also changes the preferred framebuffer depth. The original code used 24 bpp by default and 32 bpp for the framebuffer. As 24 bpp is not well supported by userspace anyway, setting 32 bpp as default makes sense. v2: * rely on fbdev helpers error messages * document changes to preferred depth * dirty function no longer required Signed-off-by: Thomas Zimmermann Acked-by: Noralf Trønnes Link: https://patchwork.freedesktop.org/patch/315832/

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman