[v2,0/3] drm: Generic fbdev and vga-switcheroo

Message

Thomas Zimmermann Jan. 12, 2023, 8:11 p.m. UTC

(was: drm/fb-helper: Set framebuffer for vga-switcheroo clients)

This patch has now turned into a little series. The first two patches
are bug fixes for the existing code. The third patch cleans up the
drivers.

Patch 1 fixes i915 to do the correct thing if the device has not been
initialized yet. Switching to the device is only possible after the
initialization, but switching away is always possible.

Patch 2 is the original patch without the amdgpu changes. Installs
the fbdev framebuffer in vga-switcheroo for the PCI device. Does
nothing for drivers without vga-switcheroo.

Patch 3 cleans up vga_switcheroo_process_delayed_switch() in amdgpu
and the other related drivers (i.e., i915, nouveau and radeon). The
call is now located at the end of drm_lastclose() and drivers do not
need their own lastclose helpers any longer.

I kept the r-bs from v1, but patch 1 is entirely new and patch 3 has
significantly grown in size.

Thomas Zimmermann (3):
  drm/i915: Allow switching away via vga-switcheroo if uninitialized
  drm/fb-helper: Set framebuffer for vga-switcheroo clients
  drm: Call vga_switcheroo_process_delayed_switch() in drm_lastclose

 drivers/gpu/drm/amd/amdgpu/amdgpu.h     |  1 -
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c |  2 --
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 13 -------------
 drivers/gpu/drm/drm_fb_helper.c         |  8 ++++++++
 drivers/gpu/drm/drm_file.c              |  3 +++
 drivers/gpu/drm/i915/i915_driver.c      | 26 ++-----------------------
 drivers/gpu/drm/i915/i915_switcheroo.c  |  6 +++++-
 drivers/gpu/drm/nouveau/nouveau_drm.c   |  1 -
 drivers/gpu/drm/nouveau/nouveau_vga.c   |  7 -------
 drivers/gpu/drm/nouveau/nouveau_vga.h   |  1 -
 drivers/gpu/drm/radeon/radeon_drv.c     |  2 +-
 drivers/gpu/drm/radeon/radeon_drv.h     |  1 -
 drivers/gpu/drm/radeon/radeon_kms.c     | 18 -----------------
 drivers/gpu/vga/vga_switcheroo.c        |  4 ++--
 14 files changed, 21 insertions(+), 72 deletions(-)


base-commit: ac04152253dccfb02dcedfa0c57443122cf79314