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authorOscar Mateo <oscar.mateo@intel.com>2017-03-22 10:39:47 -0700
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2017-03-23 14:57:44 +0200
commit0704df2b08e76dfb1fd2688f74bc4409dc66228d (patch)
tree49f627964551c1bc00cb80caa43433ded511100b /drivers/gpu/drm/i915/i915_guc_submission.c
parent3950bf3dbff1010e3309416f9fe2acbea03156d5 (diff)
drm/i915/guc: The Additional Data Struct (ADS) should get enabled together with GuC submission
It's mandatory and it gets created if and only if GuC submission is enabled, so that should be the condition for informing the GuC about it. Also s/guc_addon_create/guc_ads_create and s/guc_addon_destroy/guc_ads_destroy and, while at it, add an explanation of what things go inside the ADS object. Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_guc_submission.c')
-rw-r--r--drivers/gpu/drm/i915/i915_guc_submission.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 7426eb6b089a..ab91dac15b5b 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -62,6 +62,13 @@
* ELSP context descriptor dword into Work Item.
* See guc_wq_item_append()
*
+ * ADS:
+ * The Additional Data Struct (ADS) has pointers for different buffers used by
+ * the GuC. One single gem object contains the ADS struct itself (guc_ads), the
+ * scheduling policies (guc_policies), a structure describing a collection of
+ * register sets (guc_mmio_reg_state) and some extra pages for the GuC to save
+ * its internal state for sleep.
+ *
*/
static inline bool is_high_priority(struct i915_guc_client* client)
@@ -936,7 +943,7 @@ static void guc_policies_init(struct guc_policies *policies)
policies->is_valid = 1;
}
-static int guc_addon_create(struct intel_guc *guc)
+static int guc_ads_create(struct intel_guc *guc)
{
struct drm_i915_private *dev_priv = guc_to_i915(guc);
struct i915_vma *vma;
@@ -999,7 +1006,7 @@ static int guc_addon_create(struct intel_guc *guc)
return 0;
}
-static void guc_addon_destroy(struct intel_guc *guc)
+static void guc_ads_destroy(struct intel_guc *guc)
{
i915_vma_unpin_and_release(&guc->ads_vma);
}
@@ -1049,7 +1056,7 @@ int i915_guc_submission_init(struct drm_i915_private *dev_priv)
if (ret < 0)
goto err_vaddr;
- ret = guc_addon_create(guc);
+ ret = guc_ads_create(guc);
if (ret < 0)
goto err_log;
@@ -1068,7 +1075,7 @@ int i915_guc_submission_init(struct drm_i915_private *dev_priv)
return 0;
err_ads:
- guc_addon_destroy(guc);
+ guc_ads_destroy(guc);
err_log:
intel_guc_log_destroy(guc);
err_vaddr:
@@ -1088,7 +1095,7 @@ void i915_guc_submission_fini(struct drm_i915_private *dev_priv)
guc_client_free(guc->execbuf_client);
guc->execbuf_client = NULL;
ida_destroy(&guc->ctx_ids);
- guc_addon_destroy(guc);
+ guc_ads_destroy(guc);
intel_guc_log_destroy(guc);
i915_gem_object_unpin_map(guc->ctx_pool->obj);
i915_vma_unpin_and_release(&guc->ctx_pool);