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Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc.h')
-rw-r--r--drivers/gpu/drm/i915/intel_guc.h120
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h
new file mode 100644
index 000000000000..418450b1ae27
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_guc.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright © 2014-2017 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _INTEL_GUC_H_
+#define _INTEL_GUC_H_
+
+#include "intel_uncore.h"
+#include "intel_guc_fw.h"
+#include "intel_guc_fwif.h"
+#include "intel_guc_ct.h"
+#include "intel_guc_log.h"
+#include "intel_uc_fw.h"
+#include "i915_guc_reg.h"
+#include "i915_vma.h"
+
+/*
+ * Top level structure of GuC. It handles firmware loading and manages client
+ * pool and doorbells. intel_guc owns a i915_guc_client to replace the legacy
+ * ExecList submission.
+ */
+struct intel_guc {
+ struct intel_uc_fw fw;
+ struct intel_guc_log log;
+ struct intel_guc_ct ct;
+
+ /* Log snapshot if GuC errors during load */
+ struct drm_i915_gem_object *load_err_log;
+
+ /* intel_guc_recv interrupt related state */
+ bool interrupts_enabled;
+
+ struct i915_vma *ads_vma;
+ struct i915_vma *stage_desc_pool;
+ void *stage_desc_pool_vaddr;
+ struct ida stage_ids;
+
+ struct i915_guc_client *execbuf_client;
+
+ DECLARE_BITMAP(doorbell_bitmap, GUC_NUM_DOORBELLS);
+ /* Cyclic counter mod pagesize */
+ u32 db_cacheline;
+
+ /* GuC's FW specific registers used in MMIO send */
+ struct {
+ u32 base;
+ unsigned int count;
+ enum forcewake_domains fw_domains;
+ } send_regs;
+
+ /* To serialize the intel_guc_send actions */
+ struct mutex send_mutex;
+
+ /* GuC's FW specific send function */
+ int (*send)(struct intel_guc *guc, const u32 *data, u32 len);
+
+ /* GuC's FW specific notify function */
+ void (*notify)(struct intel_guc *guc);
+};
+
+static
+inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len)
+{
+ return guc->send(guc, action, len);
+}
+
+static inline void intel_guc_notify(struct intel_guc *guc)
+{
+ guc->notify(guc);
+}
+
+/*
+ * GuC does not allow any gfx GGTT address that falls into range [0, WOPCM_TOP),
+ * which is reserved for Boot ROM, SRAM and WOPCM. Currently this top address is
+ * 512K. In order to exclude 0-512K address space from GGTT, all gfx objects
+ * used by GuC is pinned with PIN_OFFSET_BIAS along with size of WOPCM.
+ */
+static inline u32 guc_ggtt_offset(struct i915_vma *vma)
+{
+ u32 offset = i915_ggtt_offset(vma);
+
+ GEM_BUG_ON(offset < GUC_WOPCM_TOP);
+ GEM_BUG_ON(range_overflows_t(u64, offset, vma->size, GUC_GGTT_TOP));
+
+ return offset;
+}
+
+void intel_guc_init_early(struct intel_guc *guc);
+void intel_guc_init_send_regs(struct intel_guc *guc);
+void intel_guc_init_params(struct intel_guc *guc);
+int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len);
+int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);
+int intel_guc_sample_forcewake(struct intel_guc *guc);
+int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
+int intel_guc_suspend(struct drm_i915_private *dev_priv);
+int intel_guc_resume(struct drm_i915_private *dev_priv);
+struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
+u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv);
+
+#endif