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author | Zhi Wang <zhi.a.wang@intel.com> | 2016-06-16 12:07:03 (GMT) |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-06-17 19:36:19 (GMT) |
commit | 3c7ba6359d70f780de3141c8ab81ac37ad624f05 (patch) | |
tree | 24c8e8e22ee96284d00982cf131f261f80014b9f /drivers/gpu/drm/i915/intel_lrc.h | |
parent | c01fc5322956eb03fd4d1fe2251f037ace890172 (diff) | |
download | linux-3c7ba6359d70f780de3141c8ab81ac37ad624f05.tar.xz |
drm/i915: Introduce execlist context status change notification
This patch introduces an approach to track the execlist context status
change.
GVT-g uses GVT context as the "shadow context". The content inside GVT
context will be copied back to guest after the context is idle. And GVT-g
has to know the status of the execlist context.
This function is configurable when creating a new GEM context. Currently,
Only GVT-g will create the "status-change-notification" enabled GEM
context.
v10:
- Fix the identation. (Joonas)
v8:
- Remove the boolean flag in struct i915_gem_context. (Joonas)
v7:
- Remove per-engine ctx status notifiers. Use one status notifier for all
engines. (Joonas)
- Add prefix "INTEL_" for related definitions. (Joonas)
- Refine the comments in execlists_context_status_change(). (Joonas)
v6:
- When !CONFIG_DRM_I915_GVT, make GVT code as dead code then compiler
could automatically eliminate them for us. (Chris)
- Always initialize the notifier header, so it could be switched on/off
at runtime. (Chris)
v5:
- Only compile this feature when CONFIG_DRM_I915_GVT is enabled.(Tvrtko)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v8)
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466078825-6662-8-git-send-email-zhi.a.wang@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.h')
-rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h index a8db42a..2b8255c 100644 --- a/drivers/gpu/drm/i915/intel_lrc.h +++ b/drivers/gpu/drm/i915/intel_lrc.h @@ -57,6 +57,11 @@ #define GEN8_CSB_READ_PTR(csb_status) \ (((csb_status) & GEN8_CSB_READ_PTR_MASK) >> 8) +enum { + INTEL_CONTEXT_SCHEDULE_IN = 0, + INTEL_CONTEXT_SCHEDULE_OUT, +}; + /* Logical Rings */ int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request); int intel_logical_ring_reserve_space(struct drm_i915_gem_request *request); |