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| author | Jason Ekstrand <jason@jlekstrand.net> | 2021-07-08 10:48:08 -0500 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-07-08 19:43:43 +0200 |
| commit | 6ff6d61dd2a943bd0c80bb77eb5630e8aa0cac15 (patch) | |
| tree | ac8b687784edb8da6c05f9f5cae39b2260828ef4 /include/uapi/drm | |
| parent | 74e4b90988b25d7bb60cf072b0f1b1afc1af27d5 (diff) | |
| download | linux-6ff6d61dd2a943bd0c80bb77eb5630e8aa0cac15.tar.bz2 | |
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
Diffstat (limited to 'include/uapi/drm')
| -rw-r--r-- | include/uapi/drm/i915_drm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index f229c0abcbb5..79dcafaf476e 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1638,6 +1638,10 @@ struct drm_i915_gem_context_param { __u32 size; __u64 param; #define I915_CONTEXT_PARAM_BAN_PERIOD 0x1 +/* I915_CONTEXT_PARAM_NO_ZEROMAP has been removed. On the off chance + * someone somewhere has attempted to use it, never re-use this context + * param number. + */ #define I915_CONTEXT_PARAM_NO_ZEROMAP 0x2 #define I915_CONTEXT_PARAM_GTT_SIZE 0x3 #define I915_CONTEXT_PARAM_NO_ERROR_CAPTURE 0x4 |