xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915: Reuse the active golden render state batch

Browse Source 
The golden render state is constant, but we recreate the batch setting
it up for every new context. If we keep that batch in a volatile cache
we can safely reuse it whenever we need to initialise a new context. We
mark the pages as purgeable and use the shrinker to recover pages from
the batch whenever we face memory pressues, recreating that batch afresh
on the next new context.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtien@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-8-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2016-10-28 13:58:31 +01:00
parent 920cf41949
commit 4e50f082ac
6 changed files with 131 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/intel_ringbuffer.c
View File

@@ -648,7 +648,7 @@ static int intel_rcs_ctx_init(struct drm_i915_gem_request *req)
if (ret != 0)
return ret;
ret = i915_gem_render_state_init(req);
ret = i915_gem_render_state_emit(req);
if (ret)
return ret;