This is v2 of [1]. Improve the abstractions for display code. The main goals are: 1) The display code does not access struct drm_i915_private or struct xe_device. It only uses its own struct intel_display instead. 2) The i915 and xe driver cores do not access struct intel_display directly. It becomes an opaque pointer to them, stored in struct drm_i915_private and struct xe_device, and passed to display code. This will mean a lot of churn, unfortunately. But it will better separate the display code from the xe and i915 driver cores, and pave the way for a) removing -Ddrm_i915_private=xe_device from xe Makefile, and b) stop building the display code twice. What's presented here goes a long way, and could get us started. But there are still opens, such as: 1) How to handle platform checks such as IS_TIGERLAKE(). 2) How to handle access to non-display members of i915/xe, such as i915->uncore. There are other similar things, but I believe those are the most prevalent, and are the biggest blockers for converting a lot of functions over from i915 -> intel_display. BR, Jani. [1] https://lore.kernel.org/r/cover.1695747484.git.jani.nikula@xxxxxxxxx Jani Nikula (4): drm/i915/display: ideas for further separating display code from the rest drm/i915/display: add generic to_intel_display() macro drm/i915/display: accept either i915 or display for feature tests drm/i915/display: test various to_intel_display() scenarios .../gpu/drm/i915/display/intel_display_core.h | 3 ++ .../drm/i915/display/intel_display_device.c | 13 ++++++ .../drm/i915/display/intel_display_device.h | 10 +++- .../drm/i915/display/intel_display_types.h | 46 +++++++++++++++++++ drivers/gpu/drm/i915/display/intel_dp.c | 6 +-- drivers/gpu/drm/i915/display/intel_hdmi.c | 13 +++--- drivers/gpu/drm/i915/i915_drv.h | 11 ++++- drivers/gpu/drm/xe/xe_device_types.h | 15 +++++- 8 files changed, 103 insertions(+), 14 deletions(-) -- 2.39.2
