Re: [PATCH 39/40] drm/i915/execlists: Refactor out can_merge_rq()

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On 01/10/2018 09:18, Chris Wilson wrote:
Quoting Tvrtko Ursulin (2018-10-01 09:14:52)

On 28/09/2018 21:11, Chris Wilson wrote:
Quoting Tvrtko Ursulin (2018-09-27 12:32:54)

On 19/09/2018 20:55, Chris Wilson wrote:
In the next patch, we add another user that wants to check whether
requests can be merge into a single HW execution, and in the future we
want to add more conditions under which requests from the same context
cannot be merge. In preparation, extract out can_merge_rq().

Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
    drivers/gpu/drm/i915/intel_lrc.c | 12 ++++++++++--
    1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index be7dbdd7fc2c..679ce521be16 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -478,6 +478,15 @@ static bool can_merge_ctx(const struct intel_context *prev,
        return true;
    }
+static bool can_merge_rq(const struct i915_request *prev,
+                      const struct i915_request *next)
+{
+     if (!can_merge_ctx(prev->hw_context, next->hw_context))
+             return false;
+
+     return true;

Not just return can_merge_ctx(..) ?

Makes you think I have plans to add more tests here... If you look in
the archives you can even have a seek peek ;)

I don't see anything in Virtual Engine / Frame Split work, where to look?

Per-context frequency control to allow the rps range to change between
requests.

Who knows when will that be at the head of the queue but OK, it's a style issue only so:

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

Regards,

Tvrtko

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