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drm/i915/guc: reserve the doorbell before selecting the cacheline

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Cacheline selection is only needed if we actually manage to reserve a
doorbell.

Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181022230427.5616-2-daniele.ceraolospurio@intel.com
This commit is contained in:
Daniele Ceraolo Spurio 2018-10-22 16:04:23 -07:00 committed by Chris Wilson
parent 6f1312e6e0
commit bfeabcc87a
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/i915/intel_guc_submission.c
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@ -955,6 +955,10 @@ guc_client_alloc(struct drm_i915_private *dev_priv,
}
client->vaddr = vaddr;
ret = reserve_doorbell(client);
if (ret)
goto err_vaddr;
client->doorbell_offset = __select_cacheline(guc);
/*
@ -967,10 +971,6 @@ guc_client_alloc(struct drm_i915_private *dev_priv,
else
client->proc_desc_offset = (GUC_DB_SIZE / 2);
ret = reserve_doorbell(client);
if (ret)
goto err_vaddr;
DRM_DEBUG_DRIVER("new priority %u client %p for engine(s) 0x%x: stage_id %u\n",
priority, client, client->engines, client->stage_id);
DRM_DEBUG_DRIVER("doorbell id %u, cacheline offset 0x%lx\n",