CC: [email protected]
CC: [email protected]
TO: Maarten Lankhorst <[email protected]>
CC: Matthew Auld <[email protected]>
CC: Daniel Vetter <[email protected]>
CC: Jason Ekstrand <[email protected]>

tree:   git://anongit.freedesktop.org/drm/drm-intel drm-intel-gt-next
head:   7961c5b60f23dff5d82a523f9aeb8ebf34cf9926
commit: 7961c5b60f23dff5d82a523f9aeb8ebf34cf9926 [1/1] drm/i915: Add TTM offset 
argument to mmap.
:::::: branch date: 2 hours ago
:::::: commit date: 2 hours ago
compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0
reproduce:
cd tools/perf && ./check-headers.sh

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


perfheadercheck warnings: (new ones prefixed by >>)
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  852> /**
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  853>  * struct 
drm_i915_gem_mmap_offset - Retrieve an offset so we can mmap this buffer object.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  854>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  855>  * This struct is 
passed as argument to the `DRM_IOCTL_I915_GEM_MMAP_OFFSET` ioctl,
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  856>  * and is used to 
retrieve the fake offset to mmap an object specified by &handle.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  857>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  858>  * The legacy way 
of using `DRM_IOCTL_I915_GEM_MMAP` is removed on gen12+.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  859>  * 
`DRM_IOCTL_I915_GEM_MMAP_GTT` is an older supported alias to this struct, but 
will behave
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  860>  * as setting the 
&extensions to 0, and &flags to `I915_MMAP_OFFSET_GTT`.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  861>  */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  853<        /** Handle 
for the object being mapped. */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  863>        /** @handle: 
Handle for the object being mapped. */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  865>        /** @pad: 
Must be zero */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  857<         * Fake 
offset to use for subsequent mmap call
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  868>         * @offset: 
The fake offset to use for subsequent mmap call
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  864<         * Flags for 
extended behaviour.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  875>         * @flags: 
Flags for extended behaviour.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  876>         *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  877>         * It is 
mandatory that one of the `MMAP_OFFSET` types
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  878>         * should be 
included:
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  866<         * It is 
mandatory that one of the MMAP_OFFSET types
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  867<         * (GTT, WC, 
WB, UC, etc) should be included.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  880>         * - 
`I915_MMAP_OFFSET_GTT`: Use mmap with the object bound to GTT. (Write-Combined)
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  881>         * - 
`I915_MMAP_OFFSET_WC`: Use Write-Combined caching.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  882>         * - 
`I915_MMAP_OFFSET_WB`: Use Write-Back caching.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  883>         * - 
`I915_MMAP_OFFSET_FIXED`: Use object placement to determine caching.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  884>         *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  885>         * On 
devices with local memory `I915_MMAP_OFFSET_FIXED` is the only valid
>> Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
>> from latest version at 'include/uapi/drm/i915_drm.h':  886>         * type. 
>> On devices without local memory, this caching mode is invalid.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  887>         *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  888>         * As 
caching mode when specifying `I915_MMAP_OFFSET_FIXED`, WC or WB will
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  889>         * be used, 
depending on the object placement on creation. WB will be used
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  890>         * when the 
object can only exist in system memory, WC otherwise.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  870< #define 
I915_MMAP_OFFSET_GTT 0
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  871< #define 
I915_MMAP_OFFSET_WC  1
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  872< #define 
I915_MMAP_OFFSET_WB  2
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  873< #define 
I915_MMAP_OFFSET_UC  3
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  875<        /*
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  876<         * 
Zero-terminated chain of extensions.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  894> #define 
I915_MMAP_OFFSET_GTT   0
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  895> #define 
I915_MMAP_OFFSET_WC    1
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  896> #define 
I915_MMAP_OFFSET_WB    2
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  897> #define 
I915_MMAP_OFFSET_UC    3
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  898> #define 
I915_MMAP_OFFSET_FIXED 4
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  899> 
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  900>        /**
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  901>         * 
@extensions: Zero-terminated chain of extensions.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  908> /**
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  909>  * struct 
drm_i915_gem_set_domain - Adjust the objects write or read domain, in
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  910>  * preparation for 
accessing the pages via some CPU domain.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  911>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  912>  * Specifying a new 
write or read domain will flush the object out of the
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  913>  * previous 
domain(if required), before then updating the objects domain
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  914>  * tracking with 
the new domain.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  915>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  916>  * Note this might 
involve waiting for the object first if it is still active on
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  917>  * the GPU.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  918>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  919>  * Supported values 
for @read_domains and @write_domain:
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  920>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  921>  *     - 
I915_GEM_DOMAIN_WC: Uncached write-combined domain
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  922>  *     - 
I915_GEM_DOMAIN_CPU: CPU cache domain
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  923>  *     - 
I915_GEM_DOMAIN_GTT: Mappable aperture domain
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  924>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  925>  * All other 
domains are rejected.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  926>  */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  884<        /** Handle 
for the object */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  928>        /** @handle: 
Handle for the object. */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  887<        /** New read 
domains */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  931>        /** 
@read_domains: New read domains. */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  890<        /** New 
write domain */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  934>        /**
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  935>         * 
@write_domain: New write domain.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  936>         *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  937>         * Note that 
having something in the write domain implies it's in the
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  938>         * read 
domain, and only that read domain.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h':  939>         */
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1351<         * 
I915_CONTEXT_SET_ENGINES parameter and via perf, i.e.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1400>         * 
I915_CONTEXT_PARAM_ENGINES context parameter and via perf, i.e.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1353<         * reported 
as active itself. Some hardware may have parallel
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1354<         * execution 
engines, e.g. multiple media engines, which are
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1355<         * mapped to 
the same class identifier and so are not separately
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1356<         * reported 
for busyness.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1402>         * Some 
hardware may have parallel execution engines, e.g. multiple
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1403>         * media 
engines, which are mapped to the same class identifier and so
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1404>         * are not 
separately reported for busyness.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1367<  * I915_CACHING_NONE
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1415>  * struct 
drm_i915_gem_caching - Set or get the caching for given object
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1416>  * handle.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1369<  * GPU access is 
not coherent with cpu caches. Default for machines without an
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1370<  * LLC.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1418>  * Allow userspace 
to control the GTT caching bits for a given object when the
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1419>  * object is later 
mapped through the ppGTT(or GGTT on older platforms lacking
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1420>  * ppGTT support, 
or if the object is used for scanout). Note that this might
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1421>  * require 
unbinding the object from the GTT first, if its current caching value
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1422>  * doesn't match.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1423>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1424>  * Note that this 
all changes on discrete platforms, starting from DG1, the
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1425>  * set/get caching 
is no longer supported, and is now rejected.  Instead the CPU
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1426>  * caching 
attributes(WB vs WC) will become an immutable creation time property
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1427>  * for the object, 
along with the GTT caching level. For now we don't expose any
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1428>  * new uAPI for 
this, instead on DG1 this is all implicit, although this largely
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1429>  * shouldn't matter 
since DG1 is coherent by default(without any way of
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1430>  * controlling it).
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1431>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1432>  * Implicit caching 
rules, starting from DG1:
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1433>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1434>  *     - If any of 
the object placements (see &drm_i915_gem_create_ext_memory_regions)
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1435>  *       contain 
I915_MEMORY_CLASS_DEVICE then the object will be allocated and
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1436>  *       mapped as 
write-combined only.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1437>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1438>  *     - Everything 
else is always allocated and mapped as write-back, with the
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1439>  *       guarantee 
that everything is also coherent with the GPU.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1440>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1441>  * Note that this 
is likely to change in the future again, where we might need
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1442>  * more flexibility 
on future devices, so making this all explicit as part of a
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1443>  * new 
&drm_i915_gem_create_ext extension is probable.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1444>  *
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1445>  * Side note: Part 
of the reason for this is that changing the at-allocation-time CPU
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1446>  * caching 
attributes for the pages might be required(and is expensive) if we
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1447>  * need to then CPU 
map the pages later with different caching attributes. This
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1448>  * inconsistent 
caching behaviour, while supported on x86, is not universally
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1449>  * supported on 
other architectures. So for simplicity we opt for setting
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1450>  * everything at 
creation time, whilst also making it immutable, on discrete
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1451>  * platforms.
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1372< #define 
I915_CACHING_NONE              0
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1373< /**
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1374<  * 
I915_CACHING_CACHED
   Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs 
from latest version at 'include/uapi/drm/i915_drm.h': 1375<  *

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]
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