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path: root/drivers/gpu/drm/tiny/bochs.c
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2024-06-10drm/tiny: add missing MODULE_DESCRIPTION() macrosJeff Johnson1-0/+1
make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/tiny/bochs.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/tiny/cirrus.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/tiny/gm12u320.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240609-md-drivers-gpu-drm-tiny-v1-1-6905fe4ada50@quicinc.com
2024-05-13drm/bochs: switch to struct drm_edidJani Nikula1-13/+10
Prefer struct drm_edid based functions over struct edid. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Robert Foss <rfoss@kernel.org> Signed-off-by: Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/24536f4a1a12af7b43ba86e9761dfeef179b72df.1715347488.git.jani.nikula@intel.com
2024-05-02drm/fbdev-generic: Convert to fbdev-ttmThomas Zimmermann1-2/+2
Only TTM-based drivers use fbdev-generic. Rename it to fbdev-ttm and change the symbol infix from _generic_ to _ttm_. Link the source file into TTM helpers, so that it is only build if TTM-based drivers have been selected. Select DRM_TTM_HELPER for loongson. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-43-tzimmermann@suse.de
2023-09-21drm: Call drm_atomic_helper_shutdown() at shutdown time for misc driversDouglas Anderson1-0/+6
Based on grepping through the source code these drivers appear to be missing a call to drm_atomic_helper_shutdown() at system shutdown time. Among other things, this means that if a panel is in use that it won't be cleanly powered off at system shutdown time. The fact that we should call drm_atomic_helper_shutdown() in the case of OS shutdown/restart comes straight out of the kernel doc "driver instance overview" in drm_drv.c. All of the drivers in this patch were fairly straightforward to fix since they already had a call to drm_atomic_helper_shutdown() at remove/unbind time but were just lacking one at system shutdown. The only hitch is that some of these drivers use the component model to register/unregister their DRM devices. The shutdown callback is part of the original device. The typical solution here, based on how other DRM drivers do this, is to keep track of whether the device is bound based on drvdata. In most cases the drvdata is the drm_device, so we can just make sure it is NULL when the device is not bound. In some drivers, this required minor code changes. To make things simpler, drm_atomic_helper_shutdown() has been modified to consider a NULL drm_device as a noop in the patch ("drm/atomic-helper: drm_atomic_helper_shutdown(NULL) should be a noop"). Suggested-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Acked-by: Maxime Ripard <mripard@kernel.org> Tested-by: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn> Tested-by: Sui Jingfeng <suijingfeng@loongson.cn> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230901163944.RFT.2.I9115e5d094a43e687978b0699cc1fe9f2a3452ea@changeid
2023-03-22drm/fbdev-generic: Remove unused prefer_shadow_fbdev flagThomas Zimmermann1-1/+0
Remove the flag prefer_shadow_fbdev from struct drm_mode_config. Drivers set this flag to enable shadow buffering in the generic fbdev emulation. Such shadow buffering is now mandatory, so the flag is unused. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Zack Rusin <zackr@vmware.com> Tested-by: Sui Jingfeng <suijingfeng@loongson.cn> Link: https://patchwork.freedesktop.org/patch/msgid/20230320150751.20399-3-tzimmermann@suse.de
2022-11-05drm/fb-helper: Move generic fbdev emulation into separate source fileThomas Zimmermann1-1/+1
Move the generic fbdev implementation into its own source and header file. Adapt drivers. No functional changes, but some of the internal helpers have been renamed to fit into the drm_fbdev_ naming scheme. v3: * rename drm_fbdev.{c,h} to drm_fbdev_generic.{c,h} * rebase onto vmwgfx changes * rebase onto xlnx changes * fix include statements in amdgpu Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-22-tzimmermann@suse.de
2022-10-20drm: Remove drm_mode_config::fb_baseZack Rusin1-1/+0
The fb_base in struct drm_mode_config has been unused for a long time. Some drivers set it and some don't leading to a very confusing state where the variable can't be relied upon, because there's no indication as to which driver sets it and which doesn't. The only usage of fb_base is internal to two drivers so instead of trying to force it into all the drivers to get it into a coherent state completely remove it. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Thomas Zimmermann <tzimemrmann@suse.de> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221019024401.394617-1-zack@kde.org
2022-09-07drm/bochs: fix blankingGerd Hoffmann1-0/+2
VGA_IS1_RC is the color mode register (VGA_IS1_RM the one for monochrome mode, note C vs. M at the end). So when using VGA_IS1_RC make sure the vga device is actually in color mode and set the corresponding bit in the misc register. Reproducible when booting VMs in UEFI mode with some edk2 versions (edk2 fix is on the way too). Doesn't happen in BIOS mode because in that case the vgabios already flips the bit. Fixes: 250e743915d4 ("drm/bochs: Add screen blanking support") Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20220906142957.2763577-1-kraxel@redhat.com
2022-07-19drm/bochs: Fix some error handling paths in bochs_pci_probe()Christophe JAILLET1-3/+9
The remove() function calls bochs_hw_fini() but this function is not called in the error handling of the probe. This call releases the resources allocated by bochs_hw_init() used in bochs_load(). Update the probe and bochs_load() to call bochs_hw_fini() if an error occurs after a successful bochs_hw_init() call. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: http://patchwork.freedesktop.org/patch/msgid/0e676e4d56ab5b10fcf22860081414445611dfa7.1655565953.git.christophe.jaillet@wanadoo.fr Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-06-20drm: Drop drm_framebuffer.h from drm_crtc.hVille Syrjälä1-0/+1
drm_crtc.h has no need for drm_frambuffer.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_framebuffer.h. Quite a few placs do currently depend on drm_framebuffer.h without actually including it directly. All of those need to be fixed up. v2: Fix up msm some more v2: Deal with ingenic and shmobile as well Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220614095449.29311-1-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20drm: Drop drm_edid.h from drm_crtc.hVille Syrjälä1-0/+1
drm_crtc.h has no need for drm_edid.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_edid.h. Quite a few placs do currently depend on drm_edid.h without actually including it directly. All of those need to be fixed up. v2: Fix up i915 and msm some more v3: Fix alphabetical ordering (Sam) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220614090245.30283-1-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-09drm/bochs: Explicitly include linux/module.hMichel Dänzer1-0/+1
Instead of relying on it getting pulled in indirectly. Signed-off-by: Michel Dänzer <mdaenzer@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20220413161259.1854270-1-michel@daenzer.net Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-01-19drm/bochs: Replace module-init boiler-plate code with DRM helpersThomas Zimmermann1-18/+2
Remove custom bochs_init() and bochs_exit() functions and initialize the module with DRM module helpers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211222082831.196562-4-javierm@redhat.com
2021-11-27drm: Move nomodeset kernel parameter to the DRM subsystemJavier Martinez Canillas1-2/+1
The "nomodeset" kernel cmdline parameter is handled by the vgacon driver but the exported vgacon_text_force() symbol is only used by DRM drivers. It makes much more sense for the parameter logic to be in the subsystem of the drivers that are making use of it. Let's move the vgacon_text_force() function and related logic to the DRM subsystem. While doing that, rename it to drm_firmware_drivers_only() and make it return true if "nomodeset" was used and false otherwise. This is a better description of the condition that the drivers are testing for. Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patchwork.freedesktop.org/patch/msgid/20211112133230.1595307-4-javierm@redhat.com
2021-09-15drm/bochs: add Bochs PCI ID for Simics modelH. Peter Anvin (Intel)1-0/+8
Current (and older) Simics models for the Bochs VGA used the wrong PCI vendor ID (0x4321 instead of 0x1234). Although this can hopefully be fixed in the future, it is a problem for users of the current version, not the least because to update the device ID the BIOS has to be rebuilt in order to see BIOS output. Add support for the 4321:1111 device number in addition to the 1234:1111 one. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Link: http://patchwork.freedesktop.org/patch/msgid/20210910010655.2356245-1-hpa@zytor.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-07-20drm/bochs: Fix missing pci_disable_device() on error in bochs_pci_probe()Yang Yingliang1-1/+1
Replace pci_enable_device() with pcim_enable_device(), pci_disable_device() will be called in release automatically. v3: reformat commit message update for move to tiny/ v2: use pcim_enable_device() Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reported-by: Hulk Robot <hulkci@huawei.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210715132845.2415619-1-yangyingliang@huawei.com
2021-07-05drm/bochs: Use managed initialization for GEM VRAM helpersThomas Zimmermann1-38/+5
Convert to managed GEM VRAM initialization and switch bochs to full autocleanup. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075434.27677-3-tzimmermann@suse.de
2021-07-05drm/bochs: Move to tiny/Thomas Zimmermann1-0/+766
The bochs driver is only ~600 lines of code. Putting it into tiny/ cleans up the DRM directory slightly. Some style problems were fixed and unneeded include statements were removed. No functional changes. v2: * make bochs_mode_funcs static (Daniel, kernel test robot) * rebase onto aperture API changes Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210702075434.27677-2-tzimmermann@suse.de