CVS commit: src/sys/external/bsd/drm2/dist/drm/i915/gem

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Fri Jan 19 22:23:19 UTC 2024

Modified Files:
        src/sys/external/bsd/drm2/dist/drm/i915/gem: i915_gem_region.c

Log Message:
i915_gem_region: Fill sg_pgs, with size/PAGE_SIZE entries.

Use sg_alloc_table_from_bus_dmamem to do this.

i915_gem_mman.c vm_fault_cpu and i915_gem_object_release_mmap_offset
both rely on sg_pgs to be a page array, so using something else like
size >> ilog2(mem->mm.chunk_size) entries doesn't work.  And they
rely on the sg_pgs entries to be initialized, which we weren't doing
before, and which sg_alloc_table_from_bus_dmamem does for us.

Related to PR kern/57833.

XXX pullup-10


To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 \
    src/sys/external/bsd/drm2/dist/drm/i915/gem/i915_gem_region.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.