[PATCH 03/17] drm/i915: Allow the user to pass a context to any ring

Chris Wilson
2016-08-22T08:04:08Z

With full-ppgtt, we want the user to have full control over their memory
layout, with a separate instance per context. Forcing them to use a
shared memory layout for !RCS not only duplicates the amount of work we
have to do, but also defeats the memory segregation on offer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 8f9d5ad0cfd8..fb1a64738fb8 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1250,12 +1250,9 @@ static struct i915_gem_context *
i915_gem_validate_context(struct drm_device *dev, struct drm_file *file,
struct intel_engine_cs *engine, const u32 ctx_id)
{
- struct i915_gem_context *ctx = NULL;
+ struct i915_gem_context *ctx;
struct i915_ctx_hang_stats *hs;

- if (engine->id != RCS && ctx_id != DEFAULT_CONTEXT_HANDLE)
- return ERR_PTR(-EINVAL);
-
ctx = i915_gem_context_lookup(file->driver_priv, ctx_id);
if (IS_ERR(ctx))
return ctx;
--
2.9.3