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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-11-20 13:20:01 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-11-20 18:56:16 +0300 |
| commit | 2113184c6f6749f6e4e86a42894f67a50ead6775 (patch) | |
| tree | a4b4b8737f21af6f418e8bece61c9f525656c4d6 /drivers/gpu/drm/i915/i915_gem_execbuffer.c | |
| parent | 7c52a2219da1e551e19af6a4c50619952c6d7bde (diff) | |
| download | linux-2113184c6f6749f6e4e86a42894f67a50ead6775.tar.xz | |
drm/i915: Pull the unconditional GPU cache invalidation into request construction
As the request will, in the following patch, implicitly invoke a
context-switch on construction, we should precede that with a GPU TLB
invalidation. Also, even before using GGTT, we always want to invalidate
the TLBs for any updates (as well as the ppgtt invalidates that are
unconditionally applied by execbuf). Since we almost always require the
TLB invalidate, do it unconditionally on request allocation and so we can
remove it from all other paths.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171120102002.22254-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_execbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 53ccb27bfe91..b7895788bc75 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1111,10 +1111,6 @@ static int __reloc_gpu_alloc(struct i915_execbuffer *eb, if (err) goto err_request; - err = eb->engine->emit_flush(rq, EMIT_INVALIDATE); - if (err) - goto err_request; - err = i915_switch_context(rq); if (err) goto err_request; @@ -1818,8 +1814,7 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb) /* Unconditionally flush any chipset caches (for streaming writes). */ i915_gem_chipset_flush(eb->i915); - /* Unconditionally invalidate GPU caches and TLBs. */ - return eb->engine->emit_flush(eb->request, EMIT_INVALIDATE); + return 0; } static bool i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec) |