Merge branch 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux into drm-next

Initial pull request for DC support.  We've completed a substantial amount of
the cleanup and restructuring in our TODO.  There are a few additional
cleanups that we are continuing to work on, but I don't think there are any
showstoppers remaining. We've tried to maintain most of the history for bisect
purposes.  Harry made sure all the commits build.  We've enabled DC for vega10
and Raven.  Pre-vega10 parts can be enabled via module parameter (amdgpu.dc=1),
but are not enabled by default at this point until we get further testing
upstream.

This code provides atomic modesetting support for DCE8 (CIK), DCE10 (Tonga,
Fiji), DCE11 (CZ, ST, Polaris), DCE12 (vega10), and DCN1 (RV) including
HDMI and DP audio, DP MST, and many other advanced display features.

+

Latest cleanups for DC from you and Harry.  Note that there is some
flickering on some older asics with this branch due to a regression in powerplay
that has already been fixed and will be included in my next non-DC pull request
next week.

* 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux: (897 commits)
  amdgpu/dc: use kref for dc_state.
  amdgpu/dc: convert dc_sink to kref.
  amdgpu/dc: convert dc_stream_state to kref.
  amdgpu/dc: use kref for dc_plane_state.
  amdgpu/dc: convert dc_gamma to kref reference counting.
  amdgpu/dc: convert dc_transfer to use a kref.
  amdgpu/dc: kill a bunch of dead code.
  amdgpu/dc: set a bunch of functions to static.
  amdgpu/dc: kill some deadcode in dc core.
  amdgpu/dc: fix indentation on a couple of returns.
  amdgpu/dm: don't use after free.
  amdgpu/dc: kfree already checks for NULL.
  amdgpu/dc: fix a bunch of misc whitespace.
  amdgpu/dc: drop hw_sequencer_types.h
  amdgpu/dc: drop dce110_types.h
  amdgpu/dc: use kernel ilog2 for log_2.
  amdgpu/dc: don't memset after kzalloc.
  amdgpu/dc: inline dal grph object id functions.
  amdgpu/dc: inline dml_round_to_multiple
  amdgpu/dc: rename bios get_image symbol to something more searchable.
  ...

1 files changed, 160 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c
new file mode 100644
index 000000000000..3aa7f791e523
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+#include "include/i2caux_interface.h"
+#include "../engine.h"
+#include "../i2c_engine.h"
+#include "../i2c_sw_engine.h"
+
+/*
+ * Header of this unit
+ */
+
+#include "i2c_sw_engine_dce110.h"
+
+/*
+ * Post-requisites: headers required by this unit
+ */
+
+/*
+ * This unit
+ */
+
+/*
+ * @brief
+ * Cast 'struct i2c_sw_engine *'
+ * to 'struct i2c_sw_engine_dce110 *'
+ */
+#define FROM_I2C_SW_ENGINE(ptr) \
+	container_of((ptr), struct i2c_sw_engine_dce110, base)
+/*
+ * @brief
+ * Cast 'struct i2c_engine *'
+ * to 'struct i2c_sw_engine_dce80 *'
+ */
+#define FROM_I2C_ENGINE(ptr) \
+	FROM_I2C_SW_ENGINE(container_of((ptr), struct i2c_sw_engine, base))
+
+/*
+ * @brief
+ * Cast 'struct engine *'
+ * to 'struct i2c_sw_engine_dce80 *'
+ */
+#define FROM_ENGINE(ptr) \
+	FROM_I2C_ENGINE(container_of((ptr), struct i2c_engine, base))
+
+static void release_engine(
+	struct engine *engine)
+{
+}
+
+static void destruct(
+	struct i2c_sw_engine_dce110 *engine)
+{
+	dal_i2c_sw_engine_destruct(&engine->base);
+}
+
+static void destroy(
+	struct i2c_engine **engine)
+{
+	struct i2c_sw_engine_dce110 *sw_engine = FROM_I2C_ENGINE(*engine);
+
+	destruct(sw_engine);
+
+	kfree(sw_engine);
+
+	*engine = NULL;
+}
+
+static bool acquire_engine(
+	struct i2c_engine *engine,
+	struct ddc *ddc_handle)
+{
+	return dal_i2caux_i2c_sw_engine_acquire_engine(engine, ddc_handle);
+}
+
+static const struct i2c_engine_funcs i2c_engine_funcs = {
+	.acquire_engine = acquire_engine,
+	.destroy = destroy,
+	.get_speed = dal_i2c_sw_engine_get_speed,
+	.set_speed = dal_i2c_sw_engine_set_speed,
+	.setup_engine = dal_i2c_engine_setup_i2c_engine,
+	.submit_channel_request = dal_i2c_sw_engine_submit_channel_request,
+	.process_channel_reply = dal_i2c_engine_process_channel_reply,
+	.get_channel_status = dal_i2c_sw_engine_get_channel_status,
+};
+
+static const struct engine_funcs engine_funcs = {
+	.release_engine = release_engine,
+	.get_engine_type = dal_i2c_sw_engine_get_engine_type,
+	.acquire = dal_i2c_engine_acquire,
+	.submit_request = dal_i2c_sw_engine_submit_request,
+};
+
+static void construct(
+	struct i2c_sw_engine_dce110 *engine_dce110,
+	const struct i2c_sw_engine_dce110_create_arg *arg_dce110)
+{
+	struct i2c_sw_engine_create_arg arg_base;
+
+	arg_base.ctx = arg_dce110->ctx;
+	arg_base.default_speed = arg_dce110->default_speed;
+
+	dal_i2c_sw_engine_construct(&engine_dce110->base, &arg_base);
+
+	/*struct engine   struct engine_funcs*/
+	engine_dce110->base.base.base.funcs = &engine_funcs;
+	/*struct i2c_engine  struct i2c_engine_funcs*/
+	engine_dce110->base.base.funcs = &i2c_engine_funcs;
+	engine_dce110->base.default_speed = arg_dce110->default_speed;
+	engine_dce110->engine_id = arg_dce110->engine_id;
+}
+
+struct i2c_engine *dal_i2c_sw_engine_dce110_create(
+	const struct i2c_sw_engine_dce110_create_arg *arg)
+{
+	struct i2c_sw_engine_dce110 *engine_dce110;
+
+	if (!arg) {
+		ASSERT_CRITICAL(false);
+		return NULL;
+	}
+
+	engine_dce110 = kzalloc(sizeof(struct i2c_sw_engine_dce110),
+				GFP_KERNEL);
+
+	if (!engine_dce110) {
+		ASSERT_CRITICAL(false);
+		return NULL;
+	}
+
+	construct(engine_dce110, arg);
+	return &engine_dce110->base.base;
+}