]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/i915: Drop I915_CONTEXT_PARAM_NO_ZEROMAP
authorJason Ekstrand <jason@jlekstrand.net>
Thu, 8 Jul 2021 15:48:08 +0000 (10:48 -0500)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 8 Jul 2021 17:43:43 +0000 (19:43 +0200)
commit6ff6d61dd2a943bd0c80bb77eb5630e8aa0cac15
treeac8b687784edb8da6c05f9f5cae39b2260828ef4
parent74e4b90988b25d7bb60cf072b0f1b1afc1af27d5
drm/i915: Drop I915_CONTEXT_PARAM_NO_ZEROMAP

The idea behind this param is to support OpenCL drivers with relocations
because OpenCL reserves 0x0 for NULL and, if we placed memory there, it
would confuse CL kernels.  It was originally sent out as part of a patch
series including libdrm [1] and Beignet [2] support.  However, the
libdrm and Beignet patches never landed in their respective upstream
projects so this API has never been used.  It's never been used in Mesa
or any other driver, either.

Dropping this API allows us to delete a small bit of code.

[1]: https://lists.freedesktop.org/archives/intel-gfx/2015-May/067030.html
[2]: https://lists.freedesktop.org/archives/intel-gfx/2015-May/067031.html

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210708154835.528166-4-jason@jlekstrand.net
drivers/gpu/drm/i915/gem/i915_gem_context.c
drivers/gpu/drm/i915/gem/i915_gem_context_types.h
drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
include/uapi/drm/i915_drm.h