Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie: "Core: - shared fencing staging removal - drop transactional atomic helpers and move helpers to new location - DP/MST atomic cleanup - Leasing cleanups and drop EXPORT_SYMBOL - Convert drivers to atomic helpers and generic fbdev. - removed deprecated obj_ref/unref in favour of get/put - Improve dumb callback documentation - MODESET_LOCK_BEGIN/END helpers panels: - CDTech panels, Banana Pi Panel, DLC1010GIG, - Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA, - Himax HX8357D, simulated RTSM AEMv8. - GPD Win2 panel - AUO G101EVN010 vgem: - render node support ttm: - move global init out of drivers - fix LRU handling for ghost objects - Support for simultaneous submissions to multiple engines scheduler: - timeout/fault handling changes to help GPU recovery - helpers for hw with preemption support i915: - Scaler/Watermark fixes - DP MST + powerwell fixes - PSR fixes - Break long get/put shmemfs pages - Icelake fixes - Icelake DSI video mode enablement - Engine workaround improvements amdgpu: - freesync support - GPU reset enabled on CI, VI, SOC15 dGPUs - ABM support in DC - KFD support for vega12/polaris12 - SDMA paging queue on vega - More amdkfd code sharing - DCC scanout on GFX9 - DC kerneldoc - Updated SMU firmware for GFX8 chips - XGMI PSP + hive reset support - GPU reset - DC trace support - Powerplay updates for newer Polaris - Cursor plane update fast path - kfd dma-buf support virtio-gpu: - add EDID support vmwgfx: - pageflip with damage support nouveau: - Initial Turing TU104/TU106 modesetting support msm: - a2xx gpu support for apq8060 and imx5 - a2xx gpummu support - mdp4 display support for apq8060 - DPU fixes and cleanups - enhanced profiling support - debug object naming interface - get_iova/page pinning decoupling tegra: - Tegra194 host1x, VIC and display support enabled - Audio over HDMI for Tegra186 and Tegra194 exynos: - DMA/IOMMU refactoring - plane alpha + blend mode support - Color format fixes for mixer driver rcar-du: - R8A7744 and R8A77470 support - R8A77965 LVDS support imx: - fbdev emulation fix - multi-tiled scalling fixes - SPDX identifiers rockchip - dw_hdmi support - dw-mipi-dsi + dual dsi support - mailbox read size fix qxl: - fix cursor pinning vc4: - YUV support (scaling + cursor) v3d: - enable TFU (Texture Formatting Unit) mali-dp: - add support for linear tiled formats sun4i: - Display Engine 3 support - H6 DE3 mixer 0 support - H6 display engine support - dw-hdmi support - H6 HDMI phy support - implicit fence waiting - BGRX8888 support meson: - Overlay plane support - implicit fence waiting - HDMI 1.4 4k modes bridge: - i2c fixes for sii902x" * tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits) drm/amd/display: Add fast path for cursor plane updates drm/amdgpu: Enable GPU recovery by default for CI drm/amd/display: Fix duplicating scaling/underscan connector state drm/amd/display: Fix unintialized max_bpc state values Revert "drm/amd/display: Set RMX_ASPECT as default" drm/amdgpu: Fix stub function name drm/msm/dpu: Fix clock issue after bind failure drm/msm/dpu: Clean up dpu_media_info.h static inline functions drm/msm/dpu: Further cleanups for static inline functions drm/msm/dpu: Cleanup the debugfs functions drm/msm/dpu: Remove dpu_irq and unused functions drm/msm: Make irq_postinstall optional drm/msm/dpu: Cleanup callers of dpu_hw_blk_init drm/msm/dpu: Remove unused functions drm/msm/dpu: Remove dpu_crtc_is_enabled() drm/msm/dpu: Remove dpu_crtc_get_mixer_height drm/msm/dpu: Remove dpu_dbg drm/msm: dpu: Remove crtc_lock drm/msm: dpu: Remove vblank_requested flag from dpu_crtc drm/msm: dpu: Separate crtc assignment from vblank enable ...
2026-04-23 05:56:14 -04:00 · 2018-12-25 11:48:26 -08:00
parent c76cd634eb 2a3c83f5fe
commit 4971f090aa
1030 changed files with 47149 additions and 26578 deletions
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -59,60 +59,140 @@ struct common_irq_params {
 	enum dc_irq_source irq_src;
 };

+/**
+ * struct irq_list_head - Linked-list for low context IRQ handlers.
+ *
+ * @head: The list_head within &struct handler_data
+ * @work: A work_struct containing the deferred handler work
+ */
 struct irq_list_head {
 	struct list_head head;
 	/* In case this interrupt needs post-processing, 'work' will be queued*/
 	struct work_struct work;
 };

+/**
+ * struct dm_compressor_info - Buffer info used by frame buffer compression
+ * @cpu_addr: MMIO cpu addr
+ * @bo_ptr: Pointer to the buffer object
+ * @gpu_addr: MMIO gpu addr
+ */
 struct dm_comressor_info {
 	void *cpu_addr;
 	struct amdgpu_bo *bo_ptr;
 	uint64_t gpu_addr;
 };

+/**
+ * struct amdgpu_dm_backlight_caps - Usable range of backlight values from ACPI
+ * @min_input_signal: minimum possible input in range 0-255
+ * @max_input_signal: maximum possible input in range 0-255
+ * @caps_valid: true if these values are from the ACPI interface
+ */
+struct amdgpu_dm_backlight_caps {
+	int min_input_signal;
+	int max_input_signal;
+	bool caps_valid;
+};
+
+/**
+ * struct amdgpu_display_manager - Central amdgpu display manager device
+ *
+ * @dc: Display Core control structure
+ * @adev: AMDGPU base driver structure
+ * @ddev: DRM base driver structure
+ * @display_indexes_num: Max number of display streams supported
+ * @irq_handler_list_table_lock: Synchronizes access to IRQ tables
+ * @backlight_dev: Backlight control device
+ * @cached_state: Caches device atomic state for suspend/resume
+ * @compressor: Frame buffer compression buffer. See &struct dm_comressor_info
+ */
 struct amdgpu_display_manager {
+
 	struct dc *dc;
+
+	/**
+	 * @cgs_device:
+	 *
+	 * The Common Graphics Services device. It provides an interface for
+	 * accessing registers.
+	 */
 	struct cgs_device *cgs_device;

-	struct amdgpu_device *adev;	/*AMD base driver*/
-	struct drm_device *ddev;	/*DRM base driver*/
+	struct amdgpu_device *adev;
+	struct drm_device *ddev;
 	u16 display_indexes_num;

-	/*
-	 * 'irq_source_handler_table' holds a list of handlers
-	 * per (DAL) IRQ source.
+	/**
+	 * @atomic_obj
 	 *
-	 * Each IRQ source may need to be handled at different contexts.
-	 * By 'context' we mean, for example:
-	 * - The ISR context, which is the direct interrupt handler.
-	 * - The 'deferred' context - this is the post-processing of the
-	 *	interrupt, but at a lower priority.
+	 * In combination with &dm_atomic_state it helps manage
+	 * global atomic state that doesn't map cleanly into existing
+	 * drm resources, like &dc_context.
+	 */
+	struct drm_private_obj atomic_obj;
+
+	struct drm_modeset_lock atomic_obj_lock;
+
+	/**
+	 * @dc_lock:
+	 *
+	 * Guards access to DC functions that can issue register write
+	 * sequences.
+	 */
+	struct mutex dc_lock;
+
+	/**
+	 * @irq_handler_list_low_tab:
+	 *
+	 * Low priority IRQ handler table.
+	 *
+	 * It is a n*m table consisting of n IRQ sources, and m handlers per IRQ
+	 * source. Low priority IRQ handlers are deferred to a workqueue to be
+	 * processed. Hence, they can sleep.
 	 *
 	 * Note that handlers are called in the same order as they were
 	 * registered (FIFO).
 	 */
 	struct irq_list_head irq_handler_list_low_tab[DAL_IRQ_SOURCES_NUMBER];
+
+	/**
+	 * @irq_handler_list_high_tab:
+	 *
+	 * High priority IRQ handler table.
+	 *
+	 * It is a n*m table, same as &irq_handler_list_low_tab. However,
+	 * handlers in this table are not deferred and are called immediately.
+	 */
 	struct list_head irq_handler_list_high_tab[DAL_IRQ_SOURCES_NUMBER];

+	/**
+	 * @pflip_params:
+	 *
+	 * Page flip IRQ parameters, passed to registered handlers when
+	 * triggered.
+	 */
 	struct common_irq_params
 	pflip_params[DC_IRQ_SOURCE_PFLIP_LAST - DC_IRQ_SOURCE_PFLIP_FIRST + 1];

+	/**
+	 * @vblank_params:
+	 *
+	 * Vertical blanking IRQ parameters, passed to registered handlers when
+	 * triggered.
+	 */
 	struct common_irq_params
 	vblank_params[DC_IRQ_SOURCE_VBLANK6 - DC_IRQ_SOURCE_VBLANK1 + 1];

-	/* this spin lock synchronizes access to 'irq_handler_list_table' */
 	spinlock_t irq_handler_list_table_lock;

 	struct backlight_device *backlight_dev;

 	const struct dc_link *backlight_link;
+	struct amdgpu_dm_backlight_caps backlight_caps;

 	struct mod_freesync *freesync_module;

-	/**
-	 * Caches device atomic state for suspend/resume
-	 */
 	struct drm_atomic_state *cached_state;

 	struct dm_comressor_info compressor;
@@ -183,15 +263,21 @@ struct dm_crtc_state {
 	int crc_skip_count;
 	bool crc_enabled;

-	bool freesync_enabled;
+	bool freesync_timing_changed;
+	bool freesync_vrr_info_changed;
+
+	bool vrr_supported;
+	struct mod_freesync_config freesync_config;
 	struct dc_crtc_timing_adjust adjust;
 	struct dc_info_packet vrr_infopacket;
+
+	int abm_level;
 };

 #define to_dm_crtc_state(x) container_of(x, struct dm_crtc_state, base)

 struct dm_atomic_state {
-	struct drm_atomic_state base;
+	struct drm_private_state base;

 	struct dc_state *context;
 };
@@ -206,8 +292,8 @@ struct dm_connector_state {
 	uint8_t underscan_hborder;
 	uint8_t max_bpc;
 	bool underscan_enable;
-	bool freesync_enable;
 	bool freesync_capable;
+	uint8_t abm_level;
 };

 #define to_dm_connector_state(x)\
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -164,7 +164,7 @@ int amdgpu_dm_set_regamma_lut(struct dm_crtc_state *crtc)
 	 */
 	stream->out_transfer_func->type = TF_TYPE_DISTRIBUTED_POINTS;
 	ret = mod_color_calculate_regamma_params(stream->out_transfer_func,
-						 gamma, true, adev->asic_type <= CHIP_RAVEN);
+						 gamma, true, adev->asic_type <= CHIP_RAVEN, NULL);
 	dc_gamma_release(&gamma);
 	if (!ret) {
 		stream->out_transfer_func->type = old_type;
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
@@ -75,6 +75,11 @@ int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name)
 		return -EINVAL;
 	}

+	if (!stream_state) {
+		DRM_ERROR("No stream state for CRTC%d\n", crtc->index);
+		return -EINVAL;
+	}
+
 	/* When enabling CRC, we should also disable dithering. */
 	if (source == AMDGPU_DM_PIPE_CRC_SOURCE_AUTO) {
 		if (dc_stream_configure_crc(stream_state->ctx->dc,
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
@@ -32,16 +32,55 @@
 #include "amdgpu_dm.h"
 #include "amdgpu_dm_irq.h"

+/**
+ * DOC: overview
+ *
+ * DM provides another layer of IRQ management on top of what the base driver
+ * already provides. This is something that could be cleaned up, and is a
+ * future TODO item.
+ *
+ * The base driver provides IRQ source registration with DRM, handler
+ * registration into the base driver's IRQ table, and a handler callback
+ * amdgpu_irq_handler(), with which DRM calls on interrupts. This generic
+ * handler looks up the IRQ table, and calls the respective
+ * &amdgpu_irq_src_funcs.process hookups.
+ *
+ * What DM provides on top are two IRQ tables specifically for top-half and
+ * bottom-half IRQ handling, with the bottom-half implementing workqueues:
+ *
+ * - &amdgpu_display_manager.irq_handler_list_high_tab
+ * - &amdgpu_display_manager.irq_handler_list_low_tab
+ *
+ * They override the base driver's IRQ table, and the effect can be seen
+ * in the hooks that DM provides for &amdgpu_irq_src_funcs.process. They
+ * are all set to the DM generic handler amdgpu_dm_irq_handler(), which looks up
+ * DM's IRQ tables. However, in order for base driver to recognize this hook, DM
+ * still needs to register the IRQ with the base driver. See
+ * dce110_register_irq_handlers() and dcn10_register_irq_handlers().
+ *
+ * To expose DC's hardware interrupt toggle to the base driver, DM implements
+ * &amdgpu_irq_src_funcs.set hooks. Base driver calls it through
+ * amdgpu_irq_update() to enable or disable the interrupt.
+ */
+
 /******************************************************************************
 * Private declarations.
 *****************************************************************************/

+/**
+ * struct amdgpu_dm_irq_handler_data - Data for DM interrupt handlers.
+ *
+ * @list: Linked list entry referencing the next/previous handler
+ * @handler: Handler function
+ * @handler_arg: Argument passed to the handler when triggered
+ * @dm: DM which this handler belongs to
+ * @irq_source: DC interrupt source that this handler is registered for
+ */
 struct amdgpu_dm_irq_handler_data {
 	struct list_head list;
 	interrupt_handler handler;
 	void *handler_arg;

-	/* DM which this handler belongs to */
 	struct amdgpu_display_manager *dm;
 	/* DAL irq source which registered for this interrupt. */
 	enum dc_irq_source irq_source;
@@ -68,7 +107,7 @@ static void init_handler_common_data(struct amdgpu_dm_irq_handler_data *hcd,
 }

 /**
- * dm_irq_work_func - Handle an IRQ outside of the interrupt handler proper.
+ * dm_irq_work_func() - Handle an IRQ outside of the interrupt handler proper.
 *
 * @work: work struct
 */
@@ -99,8 +138,8 @@ static void dm_irq_work_func(struct work_struct *work)
 	 * (The most common use is HPD interrupt) */
 }

-/**
- * Remove a handler and return a pointer to hander list from which the
+/*
+ * Remove a handler and return a pointer to handler list from which the
 * handler was removed.
 */
 static struct list_head *remove_irq_handler(struct amdgpu_device *adev,
@@ -203,6 +242,24 @@ static bool validate_irq_unregistration_params(enum dc_irq_source irq_source,
 * Note: caller is responsible for input validation.
 *****************************************************************************/

+/**
+ * amdgpu_dm_irq_register_interrupt() - Register a handler within DM.
+ * @adev: The base driver device containing the DM device.
+ * @int_params: Interrupt parameters containing the source, and handler context
+ * @ih: Function pointer to the interrupt handler to register
+ * @handler_args: Arguments passed to the handler when the interrupt occurs
+ *
+ * Register an interrupt handler for the given IRQ source, under the given
+ * context. The context can either be high or low. High context handlers are
+ * executed directly within ISR context, while low context is executed within a
+ * workqueue, thereby allowing operations that sleep.
+ *
+ * Registered handlers are called in a FIFO manner, i.e. the most recently
+ * registered handler will be called first.
+ *
+ * Return: Handler data &struct amdgpu_dm_irq_handler_data containing the IRQ
+ *         source, handler function, and args
+ */
 void *amdgpu_dm_irq_register_interrupt(struct amdgpu_device *adev,
 				       struct dc_interrupt_params *int_params,
 				       void (*ih)(void *),
@@ -261,6 +318,15 @@ void *amdgpu_dm_irq_register_interrupt(struct amdgpu_device *adev,
 	return handler_data;
 }

+/**
+ * amdgpu_dm_irq_unregister_interrupt() - Remove a handler from the DM IRQ table
+ * @adev: The base driver device containing the DM device
+ * @irq_source: IRQ source to remove the given handler from
+ * @ih: Function pointer to the interrupt handler to unregister
+ *
+ * Go through both low and high context IRQ tables, and find the given handler
+ * for the given irq source. If found, remove it. Otherwise, do nothing.
+ */
 void amdgpu_dm_irq_unregister_interrupt(struct amdgpu_device *adev,
 					enum dc_irq_source irq_source,
 					void *ih)
@@ -295,6 +361,20 @@ void amdgpu_dm_irq_unregister_interrupt(struct amdgpu_device *adev,
 	}
 }

+/**
+ * amdgpu_dm_irq_init() - Initialize DM IRQ management
+ * @adev:  The base driver device containing the DM device
+ *
+ * Initialize DM's high and low context IRQ tables.
+ *
+ * The N by M table contains N IRQ sources, with M
+ * &struct amdgpu_dm_irq_handler_data hooked together in a linked list. The
+ * list_heads are initialized here. When an interrupt n is triggered, all m
+ * handlers are called in sequence, FIFO according to registration order.
+ *
+ * The low context table requires special steps to initialize, since handlers
+ * will be deferred to a workqueue. See &struct irq_list_head.
+ */
 int amdgpu_dm_irq_init(struct amdgpu_device *adev)
 {
 	int src;
@@ -317,7 +397,12 @@ int amdgpu_dm_irq_init(struct amdgpu_device *adev)
 	return 0;
 }

-/* DM IRQ and timer resource release */
+/**
+ * amdgpu_dm_irq_fini() - Tear down DM IRQ management
+ * @adev: The base driver device containing the DM device
+ *
+ * Flush all work within the low context IRQ table.
+ */
 void amdgpu_dm_irq_fini(struct amdgpu_device *adev)
 {
 	int src;
@@ -414,7 +499,7 @@ int amdgpu_dm_irq_resume_late(struct amdgpu_device *adev)
 	return 0;
 }

-/**
+/*
 * amdgpu_dm_irq_schedule_work - schedule all work items registered for the
 * "irq_source".
 */
@@ -439,8 +524,9 @@ static void amdgpu_dm_irq_schedule_work(struct amdgpu_device *adev,

 }

-/** amdgpu_dm_irq_immediate_work
- *  Callback high irq work immediately, don't send to work queue
+/*
+ * amdgpu_dm_irq_immediate_work
+ * Callback high irq work immediately, don't send to work queue
 */
 static void amdgpu_dm_irq_immediate_work(struct amdgpu_device *adev,
 					 enum dc_irq_source irq_source)
@@ -467,11 +553,14 @@ static void amdgpu_dm_irq_immediate_work(struct amdgpu_device *adev,
 	DM_IRQ_TABLE_UNLOCK(adev, irq_table_flags);
 }

-/*
- * amdgpu_dm_irq_handler
+/**
+ * amdgpu_dm_irq_handler - Generic DM IRQ handler
+ * @adev: amdgpu base driver device containing the DM device
+ * @source: Unused
+ * @entry: Data about the triggered interrupt
 *
- * Generic IRQ handler, calls all registered high irq work immediately, and
- * schedules work for low irq
+ * Calls all registered high irq work immediately, and schedules work for low
+ * irq. The DM IRQ table is used to find the corresponding handlers.
 */
 static int amdgpu_dm_irq_handler(struct amdgpu_device *adev,
 				 struct amdgpu_irq_src *source,
@@ -613,7 +702,7 @@ void amdgpu_dm_set_irq_funcs(struct amdgpu_device *adev)
 	adev->hpd_irq.funcs = &dm_hpd_irq_funcs;
 }

-/*
+/**
 * amdgpu_dm_hpd_init - hpd setup callback.
 *
 * @adev: amdgpu_device pointer
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
@@ -485,11 +485,11 @@ void pp_rv_set_display_requirement(struct pp_smu *pp,
 		return;

 	clock.clock_type = amd_pp_dcf_clock;
-	clock.clock_freq_in_khz = req->hard_min_dcefclk_khz;
+	clock.clock_freq_in_khz = req->hard_min_dcefclk_mhz * 1000;
 	pp_funcs->display_clock_voltage_request(pp_handle, &clock);

 	clock.clock_type = amd_pp_f_clock;
-	clock.clock_freq_in_khz = req->hard_min_fclk_khz;
+	clock.clock_freq_in_khz = req->hard_min_fclk_mhz * 1000;
 	pp_funcs->display_clock_voltage_request(pp_handle, &clock);
 }

@@ -518,13 +518,13 @@ void pp_rv_set_wm_ranges(struct pp_smu *pp,
 			wm_dce_clocks[i].wm_set_id =
 					ranges->reader_wm_sets[i].wm_inst;
 		wm_dce_clocks[i].wm_max_dcfclk_clk_in_khz =
-				ranges->reader_wm_sets[i].max_drain_clk_khz;
+				ranges->reader_wm_sets[i].max_drain_clk_mhz * 1000;
 		wm_dce_clocks[i].wm_min_dcfclk_clk_in_khz =
-				ranges->reader_wm_sets[i].min_drain_clk_khz;
+				ranges->reader_wm_sets[i].min_drain_clk_mhz * 1000;
 		wm_dce_clocks[i].wm_max_mem_clk_in_khz =
-				ranges->reader_wm_sets[i].max_fill_clk_khz;
+				ranges->reader_wm_sets[i].max_fill_clk_mhz * 1000;
 		wm_dce_clocks[i].wm_min_mem_clk_in_khz =
-				ranges->reader_wm_sets[i].min_fill_clk_khz;
+				ranges->reader_wm_sets[i].min_fill_clk_mhz * 1000;
 	}

 	for (i = 0; i < wm_with_clock_ranges.num_wm_mcif_sets; i++) {
@@ -534,13 +534,13 @@ void pp_rv_set_wm_ranges(struct pp_smu *pp,
 			wm_soc_clocks[i].wm_set_id =
 					ranges->writer_wm_sets[i].wm_inst;
 		wm_soc_clocks[i].wm_max_socclk_clk_in_khz =
-				ranges->writer_wm_sets[i].max_fill_clk_khz;
+				ranges->writer_wm_sets[i].max_fill_clk_mhz * 1000;
 		wm_soc_clocks[i].wm_min_socclk_clk_in_khz =
-				ranges->writer_wm_sets[i].min_fill_clk_khz;
+				ranges->writer_wm_sets[i].min_fill_clk_mhz * 1000;
 		wm_soc_clocks[i].wm_max_mem_clk_in_khz =
-				ranges->writer_wm_sets[i].max_drain_clk_khz;
+				ranges->writer_wm_sets[i].max_drain_clk_mhz * 1000;
 		wm_soc_clocks[i].wm_min_mem_clk_in_khz =
-				ranges->writer_wm_sets[i].min_drain_clk_khz;
+				ranges->writer_wm_sets[i].min_drain_clk_mhz * 1000;
 	}

 	pp_funcs->set_watermarks_for_clocks_ranges(pp_handle, &wm_with_clock_ranges);
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2018 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
+ *
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM amdgpu_dm
+
+#if !defined(_AMDGPU_DM_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _AMDGPU_DM_TRACE_H_
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(amdgpu_dc_rreg,
+	TP_PROTO(unsigned long *read_count, uint32_t reg, uint32_t value),
+	TP_ARGS(read_count, reg, value),
+	TP_STRUCT__entry(
+			__field(uint32_t, reg)
+			__field(uint32_t, value)
+		),
+	TP_fast_assign(
+			__entry->reg = reg;
+			__entry->value = value;
+			*read_count = *read_count + 1;
+		),
+	TP_printk("reg=0x%08lx, value=0x%08lx",
+			(unsigned long)__entry->reg,
+			(unsigned long)__entry->value)
+);
+
+TRACE_EVENT(amdgpu_dc_wreg,
+	TP_PROTO(unsigned long *write_count, uint32_t reg, uint32_t value),
+	TP_ARGS(write_count, reg, value),
+	TP_STRUCT__entry(
+			__field(uint32_t, reg)
+			__field(uint32_t, value)
+		),
+	TP_fast_assign(
+			__entry->reg = reg;
+			__entry->value = value;
+			*write_count = *write_count + 1;
+		),
+	TP_printk("reg=0x%08lx, value=0x%08lx",
+			(unsigned long)__entry->reg,
+			(unsigned long)__entry->value)
+);
+
+
+TRACE_EVENT(amdgpu_dc_performance,
+	TP_PROTO(unsigned long read_count, unsigned long write_count,
+		unsigned long *last_read, unsigned long *last_write,
+		const char *func, unsigned int line),
+	TP_ARGS(read_count, write_count, last_read, last_write, func, line),
+	TP_STRUCT__entry(
+			__field(uint32_t, reads)
+			__field(uint32_t, writes)
+			__field(uint32_t, read_delta)
+			__field(uint32_t, write_delta)
+			__string(func, func)
+			__field(uint32_t, line)
+			),
+	TP_fast_assign(
+			__entry->reads = read_count;
+			__entry->writes = write_count;
+			__entry->read_delta = read_count - *last_read;
+			__entry->write_delta = write_count - *last_write;
+			__assign_str(func, func);
+			__entry->line = line;
+			*last_read = read_count;
+			*last_write = write_count;
+			),
+	TP_printk("%s:%d reads=%08ld (%08ld total), writes=%08ld (%08ld total)",
+			__get_str(func), __entry->line,
+			(unsigned long)__entry->read_delta,
+			(unsigned long)__entry->reads,
+			(unsigned long)__entry->write_delta,
+			(unsigned long)__entry->writes)
+);
+#endif /* _AMDGPU_DM_TRACE_H_ */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE amdgpu_dm_trace
+#include <trace/define_trace.h>