linux-next.git/drivers/gpu/drm/hyperv/hyperv_drm.h, branch master

drm/hyperv: Use "hv_drm_" as symbol name prefix

2026-05-29T11:08:30+00:00

Function and structure names in the Hyper-V DRM driver currently use "hyperv_" as the prefix. This conflicts with usage in core Hyper-V and VMBus code, and incorrectly implies that functions and structures in this driver apply generically to Hyper-V. A specific conflict arises for "hyperv_init", which is an initcall for generic Hyper-V initialization on arm64. The conflict prevents the use of initcall_blacklist on the kernel boot line to skip loading this driver. Fix this by substituting "hv_drm_" as the prefix for all functions and structures in this driver. In most places, this is replacing "hyperv_" with "hv_drm_". In a few places, the substitution results in "hv_drm_drm_", which has been collapsed to just "hv_drm_". In two cases, the existing prefix is a bare "hv" (including in the to_hv() macro), which has been replaced with "hv_drm" for consistency. The changes are all mechanical text substitution in symbol names. There are no other code or functional changes. Signed-off-by: Michael Kelley Reviewed-by: Dexuan Cui Signed-off-by: Hamza Mahfooz Link: https://patchwork.freedesktop.org/patch/msgid/20260529014826.41256-1-mhklkml@zohomail.com

drm/hyperv: Replace simple-KMS with regular atomic helpers

2025-05-15T12:31:38+00:00

Drop simple-KMS in favor of regular atomic helpers to make the code more modular. The simple-KMS helper mix up plane and CRTC state, so it is obsolete and should go away [1]. Since it just split the simple-pipe functions into per-plane and per-CRTC, no functional changes is expected. [1] https://lore.kernel.org/lkml/dae5089d-e214-4518-b927-5c4149babad8@suse.de/ Acked-by: Javier Martinez Canillas Signed-off-by: Ryosuke Yasuoka Link: https://lore.kernel.org/r/20250427101825.812766-1-ryasuoka@redhat.com Signed-off-by: Jocelyn Falempe

drm/hyperv: Fix double mouse pointers

2021-10-15T05:04:44+00:00

Hyper-V supports a hardware cursor feature. It is not used by Linux VM, but the Hyper-V host still draws a point as an extra mouse pointer, which is unwanted, especially when Xorg is running. The hyperv_fb driver uses synthvid_send_ptr() to hide the unwanted pointer. When the hyperv_drm driver was developed, the function synthvid_send_ptr() was not copied from the hyperv_fb driver. Fix the issue by adding the function into hyperv_drm. Fixes: 76c56a5affeb ("drm/hyperv: Add DRM driver for hyperv synthetic video device") Signed-off-by: Dexuan Cui Reviewed-by: Haiyang Zhang Reviewed-by: Deepak Rawat Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20210916193644.45650-1-decui@microsoft.com Signed-off-by: Dave Airlie

drm/hyperv: Handle feature change message from device

2021-06-07T15:04:10+00:00

Virtual device inform if screen update is needed or not with SYNTHVID_FEATURE_CHANGE message. Handle this message to set dirt_needed flag. Suggested-by: Dexuan Cui Signed-off-by: Deepak Rawat Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20210527112230.1274-2-drawat.floss@gmail.com

drm/hyperv: Add DRM driver for hyperv synthetic video device

2021-06-07T15:04:10+00:00

DRM driver for hyperv synthetic video device, based on hyperv_fb framebuffer driver. Also added config option "DRM_HYPERV" to enabled this driver. v2: - Add support for gen2 VM - Fixed review comments v3: - Split into multiple files as suggested by Thomas Zimmermann - Fixed hibernation issue as suggested by Dexuan Cui - Use ioremap_cache as suggested by Dexuan Cui - Incorporated other review comments v4: - Fix bitrotted code - Review comments - Updated the copyright and license to match hyperv_fb v5: - Address review comments and rebased with drm-misc-next v6: - Minor code/comment improvement as suggested by Dexuan Cui Signed-off-by: Deepak Rawat Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20210527112230.1274-1-drawat.floss@gmail.com