kernel/linux.git/drivers/gpu/drm/omapdrm/Kconfig, branch linux-7.0.y

drm/omapdrm: Run DRM default client setup

2024-09-26T07:31:29+00:00

Rework fbdev probing to support fbdev_probe in struct drm_driver and remove the old fb_probe callback. Provide an initializer macro for struct drm_driver that sets the callback according to the kernel configuration. Call drm_client_setup() to run the kernel's default client setup for DRM. Set fbdev_probe in struct drm_driver, so that the client setup can start the common fbdev client. The omapdrm driver specifies a preferred color mode of 32. As this is the default if no format has been given, leave it out entirely. v5: - select DRM_CLIENT_SELECTION Signed-off-by: Thomas Zimmermann Cc: Tomi Valkeinen Acked-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-81-tzimmermann@suse.de

drm/bridge-connector: move to DRM_DISPLAY_HELPER module

2024-09-03T08:18:31+00:00

drm_bridge_connector is a "leaf" driver, belonging to the display helper, rather than the "CRTC" drm_kms_helper module. Move the driver to the drm/display and add necessary Kconfig selection clauses. Suggested-by: Maxime Ripard Acked-by: Maxime Ripard Signed-off-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20240903-drm-bridge-connector-fix-hdmi-reset-v5-2-daebde6d9857@linaro.org Signed-off-by: Maxime Ripard

drm/omap: add CONFIG_MMU dependency

2024-08-05T12:54:29+00:00

Compile-testing with CONFIG_MMU disabled causes a link error in omapdrm: arm-linux-gnueabi-ld: drivers/gpu/drm/omapdrm/omap_gem.o: in function `omap_gem_fault_2d': omap_gem.c:(.text+0x36e): undefined reference to `vmf_insert_mixed' arm-linux-gnueabi-ld: drivers/gpu/drm/omapdrm/omap_gem.o: in function `omap_gem_fault': omap_gem.c:(.text+0x74a): undefined reference to `vmf_insert_mixed' Avoid this by adding a Kconfig dependency. Fixes: dc6fcaaba5a5 ("drm/omap: Allow build with COMPILE_TEST=y") Signed-off-by: Arnd Bergmann Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20240719095942.3841009-1-arnd@kernel.org

drm/omap: Restrict compile testing to PAGE_SIZE less than 64KB

2024-07-12T03:13:15+00:00

Prior to commit dc6fcaaba5a5 ("drm/omap: Allow build with COMPILE_TEST=y"), it was only possible to build the omapdrm driver with a 4KB page size. After that change, when the PAGE_SIZE is 64KB or larger, clang points out that the driver has some assumptions around the page size implicitly by passing PAGE_SIZE to a parameter with a type of u16: drivers/gpu/drm/omapdrm/omap_gem.c:758:7: error: implicit conversion from 'unsigned long' to 'u16' (aka 'unsigned short') changes value from 65536 to 0 [-Werror,-Wconstant-conversion] 757 | block = tiler_reserve_2d(fmt, omap_obj->width, omap_obj->height, | ~~~~~~~~~~~~~~~~ 758 | PAGE_SIZE); | ^~~~~~~~~ arch/powerpc/include/asm/page.h:25:34: note: expanded from macro 'PAGE_SIZE' 25 | #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) | ~~~~~~~~~~~~~^~~~~~~~~~~~~ drivers/gpu/drm/omapdrm/omap_gem.c:1504:44: error: implicit conversion from 'unsigned long' to 'u16' (aka 'unsigned short') changes value from 65536 to 0 [-Werror,-Wconstant-conversion] 1504 | block = tiler_reserve_2d(fmts[i], w, h, PAGE_SIZE); | ~~~~~~~~~~~~~~~~ ^~~~~~~~~ arch/powerpc/include/asm/page.h:25:34: note: expanded from macro 'PAGE_SIZE' 25 | #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) | ~~~~~~~~~~~~~^~~~~~~~~~~~~ 2 errors generated. As there is a lot of use of a u16 type throughout this driver and it will only ever be run on hardware that has a 4KB page size, just restrict compile testing to when the page size is less than 64KB (as no other issues have been discussed and it keeps compile testing relatively more available). Signed-off-by: Nathan Chancellor Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20240620-omapdrm-restrict-compile-test-to-sub-64kb-page-size-v1-1-5e56de71ffca@kernel.org

drm/omap: Allow build with COMPILE_TEST=y

2024-05-08T19:09:06+00:00

Allow omapdrm to be built with COMPILE_TEST=y for greater coverage. Builds fine on x86/x86_64 at least. Cc: Tomi Valkeinen Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240408170426.9285-16-ville.syrjala@linux.intel.com Reviewed-by: Tomi Valkeinen

drm/omapdrm: Fix console with deferred ops

2024-03-18T11:43:39+00:00

Commit 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers") stopped console from updating for command mode displays because there is no damage handling in fb_sys_write() unlike we had earlier in drm_fb_helper_sys_write(). Let's fix the issue by adding FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS and FB_DMAMEM_HELPERS_DEFERRED as suggested by Thomas. We cannot use the FB_DEFAULT_DEFERRED_OPS as fb_deferred_io_mmap() won't work properly for write-combine. Fixes: 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers") Suggested-by: Thomas Zimmermann Reviewed-by: Thomas Zimmermann Signed-off-by: Tony Lindgren Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20240228063540.4444-3-tony@atomide.com

fbdev: Use _DMAMEM_ infix for DMA-memory helpers

2023-07-31T18:07:18+00:00

Change the infix for fbdev's DMA-memory helpers from _DMA_ to _DMAMEM_. The helpers perform operations within DMA-able memory, but they don't perform DMA operations. Naming should make this clear. Adapt all users. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Acked-by: Helge Deller Link: https://patchwork.freedesktop.org/patch/msgid/20230729193157.15446-4-tzimmermann@suse.de

drm/omapdrm: Use GEM mmap for fbdev emulation

2023-07-24T18:14:43+00:00

The fbdev emulation currently uses fbdev's default mmap code, which has been written for I/O memory. Provide an mmap that uses GEM's mmap infrastructure. Utilize fine-grained fbdev macros to initialize struct fb_ops. The macros set the read/write and the draw callbacks for DMA memory. Set the fb_mmap callback to omapdrm's new mmap helper. Also select the correct Kconfig token for fbdev's DMA helpers. Note that the DMA helpers are the same as for system memory. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Acked-by: Maxime Ripard Cc: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20230707083422.18691-10-tzimmermann@suse.de

drm/omapdrm: Use regular fbdev I/O helpers

2023-06-01T10:41:32+00:00

Use the regular fbdev helpers for framebuffer I/O instead of DRM's helpers. Omapdrm does not use damage handling, so DRM's fbdev helpers are mere wrappers around the fbdev code. By using fbdev helpers directly within each DRM fbdev emulation, we can eventually remove DRM's wrapper functions entirely. v4: * use initializer macros for struct fb_ops v2: * use FB_SYS_HELPERS option Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Cc: Tomi Valkeinen Reviewed-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-9-tzimmermann@suse.de

drm: Drop ARCH_MULTIPLATFORM from dependencies

2023-03-14T11:57:22+00:00

Some of these dependencies used to be sensible when only a small part of the platforms supported by ARCH=arm could be compiled together in a single kernel image. Nowadays ARCH_MULTIPLATFORM is only used as a guard for kernel options incompatible with a multiplatform image. See commit 84fc86360623 ("ARM: make ARCH_MULTIPLATFORM user-visible") for some more details. Signed-off-by: Uwe Kleine-König Acked-by: Arnd Bergmann Reviewed-by: Javier Martinez Canillas Reviewed-by: Philipp Zabel Signed-off-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20221209220555.3631364-1-u.kleine-koenig@pengutronix.de