kernel/linux.git/include/uapi/drm, branch linux-5.11.y

drm/fourcc: fix Amlogic format modifier masks

2021-03-04T11:14:09+00:00

[ Upstream commit cc3283f8f41f741fbaef63d0503d8fb4a7919100 ] The comment says the layout and options use 8 bits, and the shift uses 8 bits. However the mask is 0xf, ie. 0b00001111 (4 bits). This could be surprising when introducing new layouts or options that take more than 4 bits, as this would silently drop the high bits. Make the masks consistent with the comment and the shift. Found when writing a drm_info patch [1]. [1]: https://github.com/ascent12/drm_info/pull/67 Signed-off-by: Simon Ser Fixes: d6528ec88309 ("drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression") Cc: Neil Armstrong Cc: Sam Ravnborg Cc: Kevin Hilman Cc: Daniel Vetter Acked-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20210110125103.15447-1-contact@emersion.fr Signed-off-by: Sasha Levin

drm: document that user-space should force-probe connectors

2021-03-04T11:14:04+00:00

[ Upstream commit a7e2e1c50450c6a0f020b35960edecbe25dde520 ] It seems like we can't have nice things, so let's just document the disappointing behaviour instead. The previous version assumed the kernel would perform the probing work when appropriate, however this is not the case today. Update the documentation to reflect reality. v2: - Improve commit message to explain why this change is made (Pekka) - Keep the bit about flickering (Daniel) - Explain when user-space should force-probe, and when it shouldn't (Daniel) Signed-off-by: Simon Ser Fixes: 2ac5ef3b2362 ("drm: document drm_mode_get_connector") Reviewed-by: Daniel Vetter Reviewed-by: Pekka Paalanen Cc: Ville Syrjala Link: https://patchwork.freedesktop.org/patch/msgid/AxqLnTAsFCRishOVB5CLsqIesmrMrm7oytnOVB7oPA@cp7-web-043.plabs.ch Signed-off-by: Sasha Levin

Merge tag 'drm-misc-next-2020-11-27-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2020-12-15T09:21:48+00:00

drm-misc-next for 5.11: UAPI Changes: Cross-subsystem Changes: * char/agp: Disable frontend without CONFIG_DRM_LEGACY * mm: Fix fput in mmap error path; Introduce vma_set_file() to change vma->vm_file Core Changes: * dma-buf: Use sgtables in system heap; Move heap helpers to CMA-heap code; Skip sync for unmapped buffers; Alloc higher order pages is available; Respect num_fences when initializing shared fence list * doc: Improvements around DRM modes and SCALING_FILTER * Pass full state to connector atomic functions + callee updates * Cleanups * shmem: Map pages with caching by default; Cleanups * ttm: Fix DMA32 for global page pool * fbdev: Cleanups * fb-helper: Update framebuffer after userspace writes; Unmap console buffer during shutdown; Rework damage handling of shadow framebuffer Driver Changes: * amdgpu: Multi-hop fixes, Clenaups * imx: Fix rotation for Vivante tiled formats; Support nearest-neighour skaling; Cleanups * mcde: Fix RGB formats; Support DPI output; Cleanups * meson: HDMI clock fixes * panel: Add driver and bindings for Innolux N125HCE-GN1 * panel/s6e63m0: More backlight levels; Fix init; Cleanups * via: Clenunps * virtio: Use fence ID for handling fences; Cleanups Signed-off-by: Daniel Vetter From: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20201127083055.GA29139@linux-uq9g

Merge tag 'amd-drm-next-5.11-2020-12-09' of git://people.freedesktop.org/~agd5f/linux into drm-next

2020-12-10T06:55:53+00:00

amd-drm-next-5.11-2020-12-09: amdgpu: - SR-IOV fixes - Navy Flounder updates - Sienna Cichlid updates - Dimgrey Cavefish updates - Vangogh updates - Misc SMU fixes - Misc display fixes - Last big hunk of W=1 warning fixes - Cursor validation fixes - CI BACO updates From: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20201210045344.21566-1-alexander.deucher@amd.com Signed-off-by: Dave Airlie

drm: document drm_mode_modeinfo

2020-11-20T10:55:41+00:00

This allows `struct drm_mode_modeinfo` references to be linkified. Some descriptions are borrowed from struct drm_display_mode. Signed-off-by: Simon Ser Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/BBtyuxgs3DvcrMtbRyb7KBEWUviGy1dtWO61eB4@cp3-web-016.plabs.ch

drm: document drm_mode_get_connector

2020-11-20T10:53:41+00:00

Document how to perform a GETCONNECTOR ioctl. Document the various struct fields. Also document how to perform a forced probe, and when should user-space do it. Signed-off-by: Simon Ser Reviewed-by: Daniel Vetter Cc: Pekka Paalanen Link: https://patchwork.freedesktop.org/patch/msgid/4NxrTtynzPiPX4SOCzxmA1sRB8fVLfeiabVpi5j3Y@cp7-web-041.plabs.ch

drm: improve kernel-docs in drm_mode.h

2020-11-20T08:37:08+00:00

- Remove duplicate doc-comments for struct members - Add missing @member markers for in-line member comments Signed-off-by: Simon Ser Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/grZIqIAOSUM7eNL0PurBsaWoILFwN2hEKd40Ylgzg@cp7-web-041.plabs.ch

drm/fourcc: fix AMD modifiers PACKERS field doc

2020-11-16T17:20:13+00:00

This field doesn't alias with BANK_XOR_BITS: PACKERS is bits 27:29 while BANK_XOR_BITS is bits 24:26. Fixes: 8ba16d599374 ("drm/fourcc: Add AMD DRM modifiers.") Reviewed-by: Bas Nieuwenhuizen Signed-off-by: Simon Ser Cc: Bas Nieuwenhuizen Cc: Alex Deucher Cc: Daniel Vetter Signed-off-by: Alex Deucher

drm/fourcc: add table describing AMD modifiers bit layout

2020-11-13T22:29:47+00:00

The table describes how each bit in the u64 value is used. Explicitly state which values a field can take if we have defines for them. Also add a note when a field isn't always populated. Forcing people to update the table when changing the bit layout should make it more obvious when there's a mistake, I hope. If we get to the point where the bit layout gets more complicated, it might be worth it to split the table into multiple tables (e.g. one for GFX8, one for GFX9+, and so on). Signed-off-by: Simon Ser Cc: Bas Nieuwenhuizen Cc: Alex Deucher Cc: Daniel Vetter Signed-off-by: Alex Deucher

drm/fourcc: Fix modifier field mask for AMD modifiers.

2020-11-13T22:29:47+00:00

The DCC_MAX_COMPRESSED_BLOCK has to contain one of AMD_FMT_MOD_DCC_BLOCK_* and with 3 values this doesn't fit in 1 bit. Fix this cleanly while it is only in drm-next. Fixes: 8ba16d599374 ("drm/fourcc: Add AMD DRM modifiers.") Reviewed-by: Alex Deucher Signed-off-by: Bas Nieuwenhuizen Signed-off-by: Alex Deucher