diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-04-26 17:33:34 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-04-26 18:32:11 +0100 |
| commit | 5e2a0419ef7cb25d0f9a5fd6a62372bb47ce948d (patch) | |
| tree | bc4b3c446c635415138cd956ad042abbf5fb404c /drivers/gpu/drm/i915/selftests | |
| parent | 11334c6aad9500a9d3b9b48dd0a4bb6406eb88fb (diff) | |
| download | linux-stable-5e2a0419ef7cb25d0f9a5fd6a62372bb47ce948d.tar.gz linux-stable-5e2a0419ef7cb25d0f9a5fd6a62372bb47ce948d.tar.bz2 linux-stable-5e2a0419ef7cb25d0f9a5fd6a62372bb47ce948d.zip | |
drm/i915: Switch back to an array of logical per-engine HW contexts
We switched to a tree of per-engine HW context to accommodate the
introduction of virtual engines. However, we plan to also support
multiple instances of the same engine within the GEM context, defeating
our use of the engine as a key to looking up the HW context. Just
allocate a logical per-engine instance and always use an index into the
ctx->engines[]. Later on, this ctx->engines[] may be replaced by a user
specified map.
v2: Add for_each_gem_engine() helper to iterator within the engines lock
v3: intel_context_create_request() helper
v4: s/unsigned long/unsigned int/ 4 billion engines is quite enough.
v5: Push iterator locking to caller
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190426163336.15906-7-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/selftests')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_gem_context.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/mock_context.c | 14 |
2 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c index 214d1fd2f4dc..7fd224a4ca4c 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c @@ -1094,7 +1094,7 @@ __igt_ctx_sseu(struct drm_i915_private *i915, wakeref = intel_runtime_pm_get(i915); - ce = intel_context_instance(ctx, i915->engine[RCS0]); + ce = i915_gem_context_get_engine(ctx, RCS0); if (IS_ERR(ce)) { ret = PTR_ERR(ce); goto out_rpm; diff --git a/drivers/gpu/drm/i915/selftests/mock_context.c b/drivers/gpu/drm/i915/selftests/mock_context.c index 0426093bf1d9..71c750693585 100644 --- a/drivers/gpu/drm/i915/selftests/mock_context.c +++ b/drivers/gpu/drm/i915/selftests/mock_context.c @@ -30,6 +30,7 @@ mock_context(struct drm_i915_private *i915, const char *name) { struct i915_gem_context *ctx; + struct i915_gem_engines *e; int ret; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); @@ -40,8 +41,11 @@ mock_context(struct drm_i915_private *i915, INIT_LIST_HEAD(&ctx->link); ctx->i915 = i915; - ctx->hw_contexts = RB_ROOT; - spin_lock_init(&ctx->hw_contexts_lock); + mutex_init(&ctx->engines_mutex); + e = default_engines(ctx); + if (IS_ERR(e)) + goto err_free; + RCU_INIT_POINTER(ctx->engines, e); INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL); INIT_LIST_HEAD(&ctx->handles_list); @@ -51,7 +55,7 @@ mock_context(struct drm_i915_private *i915, ret = i915_gem_context_pin_hw_id(ctx); if (ret < 0) - goto err_handles; + goto err_engines; if (name) { struct i915_hw_ppgtt *ppgtt; @@ -69,7 +73,9 @@ mock_context(struct drm_i915_private *i915, return ctx; -err_handles: +err_engines: + free_engines(rcu_access_pointer(ctx->engines)); +err_free: kfree(ctx); return NULL; |