kernel/linux.git/drivers/gpu/drm/ast, branch linux-5.9.y

drm/ast: Separate DRM driver from PCI code

2020-11-05T10:51:16+00:00

[ Upstream commit d50ace1e72f05708cc5dbc89b9bbb9873f150092 ] Putting the DRM driver to the top of the file and the PCI code to the bottom makes ast_drv.c more readable. While at it, the patch prefixes file-scope variables with ast_. Signed-off-by: Thomas Zimmermann Acked-by: Daniel Vetter Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-3-tzimmermann@suse.de Signed-off-by: Sasha Levin

treewide: Use fallthrough pseudo-keyword

2020-08-23T22:36:59+00:00

Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva

drm/ast: Use managed MM initialization

2020-07-20T07:16:23+00:00

Cleaning up ast's MM code with ast_mm_fini() resets the write-combine flags on the VRAM I/O memory. Drop ast_mm_fini() in favor of an auto- release callback. Releasing the device also executes the callback. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-7-tzimmermann@suse.de

drm/ast: Initialize DRAM type before posting GPU

2020-07-20T07:16:15+00:00

Posting the GPU requires the correct DRAM type to be stored in struct ast_private. Therefore first initialize the DRAM info and then post the GPU. This restores the original order of instructions in this function. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Acked-by: Benjamin Herrenschmidt Fixes: bad09da6deab ("drm/ast: Fixed vram size incorrect issue on POWER") Cc: Joel Stanley Cc: Y.C. Chen Cc: Benjamin Herrenschmidt Cc: Dave Airlie Cc: Thomas Zimmermann Cc: Gerd Hoffmann Cc: Daniel Vetter Cc: Sam Ravnborg Cc: Emil Velikov Cc: "Y.C. Chen" Cc: # v4.11+ Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-6-tzimmermann@suse.de

drm/ast: Move VRAM size detection to ast_mm.c

2020-07-20T07:16:11+00:00

VRAM size detection is only relevant to the memory management. Move the code into ast_mm.c. While at it, rename the function to ast_get_vram_size(). The function argument's type is now struct ast_private. The result is stored in a local variable and not in struct ast_private any longer. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-5-tzimmermann@suse.de

drm/ast: Use managed VRAM-helper initialization

2020-07-20T07:16:08+00:00

As a first step to managed MM code in ast, switch over VRAM MM helpers. v2: * updated to use drmm_vram_helper_init() Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-4-tzimmermann@suse.de

drm/ast: Rename ast_ttm.c to ast_mm.c

2020-07-20T07:16:05+00:00

Although built upon TTM, the ast driver's VRAM MM helper does not expose TTM to its users. Rename the related ast file to ast_mm.c. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-3-tzimmermann@suse.de

drm/ast: Initialize mode setting in ast_mode_config_init()

2020-07-07T09:12:06+00:00

There's modesetting init code in ast_main.c. Move it to ast_mode.c and merge it with the modesetting init code in ast_mode_init(). The result is ast_mode_config_init(), which initalizes the whole modesetting. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200702115029.5281-15-tzimmermann@suse.de

drm/ast: Use managed mode-config init

2020-07-07T09:12:03+00:00

Using drmm_mode_config_init() sets up managed release of modesetting resources. The existing modesetting's finalizer is empty, so remove it. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200702115029.5281-14-tzimmermann@suse.de

drm/ast: Replace struct ast_crtc with struct drm_crtc

2020-07-07T09:11:59+00:00

Struct ast_crtc has been cleaned up and it's now a wrapper around the DRM CRTC structure struct drm_crtc. This patch converts the driver to struct drm_crtc and removes struct ast_crtc. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200702115029.5281-13-tzimmermann@suse.de