CVS commit: [netbsd-9] src/sys/external/bsd/drm2/dist/drm

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Fri Jan 31 11:28:38 UTC 2020

Modified Files:
        src/sys/external/bsd/drm2/dist/drm/i915 [netbsd-9]: i915_gem_stolen.c
            i915_reg.h
        src/sys/external/bsd/drm2/dist/drm/radeon [netbsd-9]:
            radeon_atombios_dp.c

Log Message:
Pull up following revision(s) (requested by msaitoh in ticket #678):

        sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c: revision 1.12
        sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c: revision 1.2
        sys/external/bsd/drm2/dist/drm/i915/i915_reg.h: revision 1.9
        sys/external/bsd/drm2/dist/drm/i915/i915_reg.h: revision 1.12

 Use unsigned to avoid undefined behavior in gen7_get_stolen_reserved().
Found by kUBSan.

 Use unsigned to avoid undefined behavior in g4x_update_wm().

 Avoid undefined behavior in g4x_get_stolen_reserved().

The change is the same as newer i915_gem_stolen.c.

 Don't call memcpy() when the length is 0 (and the source pointer is NULL)
in radeon_dp_aux_transfer_atom() to avoid undefined behavior. Found by kUBSan.


To generate a diff of this commit:
cvs rdiff -u -r1.11 -r1.11.4.1 \
    src/sys/external/bsd/drm2/dist/drm/i915/i915_gem_stolen.c
cvs rdiff -u -r1.7.2.2 -r1.7.2.3 \
    src/sys/external/bsd/drm2/dist/drm/i915/i915_reg.h
cvs rdiff -u -r1.1 -r1.1.8.1 \
    src/sys/external/bsd/drm2/dist/drm/radeon/radeon_atombios_dp.c

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