Merge tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "Cannonlake and Vega12 support are probably the two major things. This
  pull lacks nouveau, Ben had some unforseen leave and a few other
  blockers so we'll see how things look or maybe leave it for this merge
  window.

  core:
   - Device links to handle sound/gpu pm dependency
   - Color encoding/range properties
   - Plane clipping into plane check helper
   - Backlight helpers
   - DP TP4 + HBR3 helper support

  amdgpu:
   - Vega12 support
   - Enable DC by default on all supported GPUs
   - Powerplay restructuring and cleanup
   - DC bandwidth calc updates
   - DC backlight on pre-DCE11
   - TTM backing store dropping support
   - SR-IOV fixes
   - Adding "wattman" like functionality
   - DC crc support
   - Improved DC dual-link handling

  amdkfd:
   - GPUVM support for dGPU
   - KFD events for dGPU
   - Enable PCIe atomics for dGPUs
   - HSA process eviction support
   - Live-lock fixes for process eviction
   - VM page table allocation fix for large-bar systems

  panel:
   - Raydium RM68200
   - AUO G104SN02 V2
   - KEO TX31D200VM0BAA
   - ARM Versatile panels

  i915:
   - Cannonlake support enabled
   - AUX-F port support added
   - Icelake base enabling until internal milestone of forcewake support
   - Query uAPI interface (used for GPU topology information currently)
   - Compressed framebuffer support for sprites
   - kmem cache shrinking when GPU is idle
   - Avoid boosting GPU when waited item is being processed already
   - Avoid retraining LSPCON link unnecessarily
   - Decrease request signaling latency
   - Deprecation of I915_SET_COLORKEY_NONE
   - Kerneldoc and compiler warning cleanup for upcoming CI enforcements
   - Full range ycbcr toggling
   - HDCP support

  i915/gvt:
   - Big refactor for shadow ppgtt
   - KBL context save/restore via LRI cmd (Weinan)
   - Properly unmap dma for guest page (Changbin)

  vmwgfx:
   - Lots of various improvements

  etnaviv:
   - Use the drm gpu scheduler
   - prep work for GC7000L support

  vc4:
   - fix alpha blending
   - Expose perf counters to userspace

  pl111:
   - Bandwidth checking/limiting
   - Versatile panel support

  sun4i:
   - A83T HDMI support
   - A80 support
   - YUV plane support
   - H3/H5 HDMI support

  omapdrm:
   - HPD support for DVI connector
   - remove lots of static variables

  msm:
   - DSI updates from 10nm / SDM845
   - fix for race condition with a3xx/a4xx fence completion irq
   - some refactoring/prep work for eventual a6xx support (ie. when we
     have a userspace)
   - a5xx debugfs enhancements
   - some mdp5 fixes/cleanups to prepare for eventually merging
     writeback
   - support (ie. when we have a userspace)

  tegra:
   - mmap() fixes for fbdev devices
   - Overlay plane for hw cursor fix
   - dma-buf cache maintenance support

  mali-dp:
   - YUV->RGB conversion support

  rockchip:
   - rk3399/chromebook fixes and improvements

  rcar-du:
   - LVDS support move to drm bridge
   - DT bindings for R8A77995
   - Driver/DT support for R8A77970

  tilcdc:
   - DRM panel support"

* tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux: (1646 commits)
  drm/i915: Fix hibernation with ACPI S0 target state
  drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
  drm/i915: Specify which engines to reset following semaphore/event lockups
  drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
  drm/amdkfd: Use ordered workqueue to restore processes
  drm/amdgpu: Fix acquiring VM on large-BAR systems
  drm/amd/pp: clean header file hwmgr.h
  drm/amd/pp: use mlck_table.count for array loop index limit
  drm: Fix uabi regression by allowing garbage mode->type from userspace
  drm/amdgpu: Add an ATPX quirk for hybrid laptop
  drm/amdgpu: fix spelling mistake: "asssert" -> "assert"
  drm/amd/pp: Add new asic support in pp_psm.c
  drm/amd/pp: Clean up powerplay code on Vega12
  drm/amd/pp: Add smu irq handlers for legacy asics
  drm/amd/pp: Fix set wrong temperature range on smu7
  drm/amdgpu: Don't change preferred domian when fallback GTT v5
  drm/vmwgfx: Bump version patchlevel and date
  drm/vmwgfx: use monotonic event timestamps
  drm/vmwgfx: Unpin the screen object backup buffer when not used
  drm/vmwgfx: Stricter count of legacy surface device resources
  ...

1 files changed, 151 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_guc_ads.c b/drivers/gpu/drm/i915/intel_guc_ads.c
new file mode 100644
index 000000000000..ac627534667d
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_guc_ads.c
@@ -0,0 +1,151 @@
+/*
+ * 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.
+ *
+ */
+
+#include "intel_guc_ads.h"
+#include "intel_uc.h"
+#include "i915_drv.h"
+
+/*
+ * 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 void guc_policy_init(struct guc_policy *policy)
+{
+	policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US;
+	policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US;
+	policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US;
+	policy->policy_flags = 0;
+}
+
+static void guc_policies_init(struct guc_policies *policies)
+{
+	struct guc_policy *policy;
+	u32 p, i;
+
+	policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US;
+	policies->max_num_work_items = POLICY_MAX_NUM_WI;
+
+	for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) {
+		for (i = GUC_RENDER_ENGINE; i < GUC_MAX_ENGINES_NUM; i++) {
+			policy = &policies->policy[p][i];
+
+			guc_policy_init(policy);
+		}
+	}
+
+	policies->is_valid = 1;
+}
+
+/*
+ * The first 80 dwords of the register state context, containing the
+ * execlists and ppgtt registers.
+ */
+#define LR_HW_CONTEXT_SIZE	(80 * sizeof(u32))
+
+/**
+ * intel_guc_ads_create() - creates GuC ADS
+ * @guc: intel_guc struct
+ *
+ */
+int intel_guc_ads_create(struct intel_guc *guc)
+{
+	struct drm_i915_private *dev_priv = guc_to_i915(guc);
+	struct i915_vma *vma;
+	struct page *page;
+	/* The ads obj includes the struct itself and buffers passed to GuC */
+	struct {
+		struct guc_ads ads;
+		struct guc_policies policies;
+		struct guc_mmio_reg_state reg_state;
+		u8 reg_state_buffer[GUC_S3_SAVE_SPACE_PAGES * PAGE_SIZE];
+	} __packed *blob;
+	struct intel_engine_cs *engine;
+	enum intel_engine_id id;
+	const u32 skipped_offset = LRC_HEADER_PAGES * PAGE_SIZE;
+	const u32 skipped_size = LRC_PPHWSP_SZ * PAGE_SIZE + LR_HW_CONTEXT_SIZE;
+	u32 base;
+
+	GEM_BUG_ON(guc->ads_vma);
+
+	vma = intel_guc_allocate_vma(guc, PAGE_ALIGN(sizeof(*blob)));
+	if (IS_ERR(vma))
+		return PTR_ERR(vma);
+
+	guc->ads_vma = vma;
+
+	page = i915_vma_first_page(vma);
+	blob = kmap(page);
+
+	/* GuC scheduling policies */
+	guc_policies_init(&blob->policies);
+
+	/* MMIO reg state */
+	for_each_engine(engine, dev_priv, id) {
+		blob->reg_state.white_list[engine->guc_id].mmio_start =
+			engine->mmio_base + GUC_MMIO_WHITE_LIST_START;
+
+		/* Nothing to be saved or restored for now. */
+		blob->reg_state.white_list[engine->guc_id].count = 0;
+	}
+
+	/*
+	 * The GuC requires a "Golden Context" when it reinitialises
+	 * engines after a reset. Here we use the Render ring default
+	 * context, which must already exist and be pinned in the GGTT,
+	 * so its address won't change after we've told the GuC where
+	 * to find it. Note that we have to skip our header (1 page),
+	 * because our GuC shared data is there.
+	 */
+	blob->ads.golden_context_lrca =
+		guc_ggtt_offset(dev_priv->kernel_context->engine[RCS].state) +
+		skipped_offset;
+
+	/*
+	 * The GuC expects us to exclude the portion of the context image that
+	 * it skips from the size it is to read. It starts reading from after
+	 * the execlist context (so skipping the first page [PPHWSP] and 80
+	 * dwords). Weird guc is weird.
+	 */
+	for_each_engine(engine, dev_priv, id)
+		blob->ads.eng_state_size[engine->guc_id] =
+			engine->context_size - skipped_size;
+
+	base = guc_ggtt_offset(vma);
+	blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
+	blob->ads.reg_state_buffer = base + ptr_offset(blob, reg_state_buffer);
+	blob->ads.reg_state_addr = base + ptr_offset(blob, reg_state);
+
+	kunmap(page);
+
+	return 0;
+}
+
+void intel_guc_ads_destroy(struct intel_guc *guc)
+{
+	i915_vma_unpin_and_release(&guc->ads_vma);
+}