This is a draft of drm_panic support for i915. I've tested it on the 4 intel laptops I have at my disposal. * Haswell with 128MB of eDRAM. * Comet Lake i7-10850H * Raptor Lake i7-1370P (with DPT, and Y-tiling). * Lunar Lake Ultra 5 228V (with DPT, and 4-tiling, and using the Xe driver.
I tested panic in both fbdev console and gnome desktop. Best regards, v2: * Add the proper abstractions to build also for Xe. * Fix dim checkpatch issues. v3: * Add support for Y-tiled framebuffer when DPT is enabled. v4: * Add support for Xe driver, which shares most of the code. * Add support for 4-tiled framebuffer found in newest GPU. v5: * Rebase on top of [email protected]:drm/i915/kernel.git drm-intel-next * Use struct intel_display instead of drm_i915_private. * Use iosys_map for intel_bo_panic_map(). v6: * Rebase on top of [email protected]:drm/i915/kernel.git drm-intel-next * Use struct intel_display instead of drm_i915_private for intel_atomic_plane.c v7: * Fix mismatch {} in intel_panic_flush() (Jani Nikula) * Return int for i915_gem_object_panic_map() (Ville Syrjälä) * Reword commit message about alignment/size when disabling tiling (Ville Syrjälä)* v8: * Use kmap_try_from_panic() instead of vmap, to access the framebuffer. * Add ttm_bo_kmap_try_from_panic() for the xe driver, that uses ttm. * Replace intel_bo_panic_map() with a setup() and finish() function, to allow mapping only one page of teh framebuffer at a time. * Configure psr to send the full framebuffer update. Jocelyn Falempe (9): drm/i915/fbdev: Add intel_fbdev_get_map() drm/i915/display/i9xx: Add a disable_tiling() for i9xx planes drm/i915/display: Add a disable_tiling() for skl planes drm/ttm: Add ttm_bo_kmap_try_from_panic() drm/i915: Add intel_bo_panic_setup and intel_bo_panic_finish drm/i915/display: Add drm_panic support drm/i915/display: Add drm_panic support for Y-tiling with DPT drm/i915/display: Add drm_panic support for 4-tiling with DPT drm/i915/psr: Add intel_psr2_panic_force_full_update drivers/gpu/drm/i915/display/i9xx_plane.c | 23 +++ .../gpu/drm/i915/display/intel_atomic_plane.c | 169 +++++++++++++++++- drivers/gpu/drm/i915/display/intel_bo.c | 12 ++ drivers/gpu/drm/i915/display/intel_bo.h | 4 + .../drm/i915/display/intel_display_types.h | 2 + drivers/gpu/drm/i915/display/intel_fb_pin.c | 5 + drivers/gpu/drm/i915/display/intel_fb_pin.h | 2 + drivers/gpu/drm/i915/display/intel_fbdev.c | 5 + drivers/gpu/drm/i915/display/intel_fbdev.h | 6 +- drivers/gpu/drm/i915/display/intel_psr.c | 20 +++ drivers/gpu/drm/i915/display/intel_psr.h | 2 + .../drm/i915/display/skl_universal_plane.c | 27 +++ drivers/gpu/drm/i915/gem/i915_gem_object.h | 5 + drivers/gpu/drm/i915/gem/i915_gem_pages.c | 109 +++++++++++ drivers/gpu/drm/i915/i915_vma.h | 5 + drivers/gpu/drm/ttm/ttm_bo_util.c | 27 +++ drivers/gpu/drm/xe/display/intel_bo.c | 61 +++++++ drivers/gpu/drm/xe/display/xe_fb_pin.c | 5 + include/drm/ttm/ttm_bo.h | 1 + 19 files changed, 488 insertions(+), 2 deletions(-) base-commit: 7247efca0dcbc8ac6147db9200ed1549c0662465 -- 2.49.0
