Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie: "Not a major amount of change, the i915 trees got split into display and gt trees to better facilitate higher level review, and there's a major refactoring of i915 GEM locking to use more core kernel concepts (like ww-mutexes). msm gets per-process pagetables, older AMD SI cards get DC support, nouveau got a bump in displayport support with common code extraction from i915. Outside of drm this contains a couple of patches for hexint moduleparams which you've acked, and a virtio common code tree that you should also get via it's regular path. New driver: - Cadence MHDP8546 DisplayPort bridge driver core: - cross-driver scatterlist cleanups - devm_drm conversions - remove drm_dev_init - devm_drm_dev_alloc conversion ttm: - lots of refactoring and cleanups bridges: - chained bridge support in more drivers panel: - misc new panels scheduler: - cleanup priority levels displayport: - refactor i915 code into helpers for nouveau i915: - split into display and GT trees - WW locking refactoring in GEM - execbuf2 extension mechanism - syncobj timeline support - GEN 12 HOBL display powersaving - Rocket Lake display additions - Disable FBC on Tigerlake - Tigerlake Type-C + DP improvements - Hotplug interrupt refactoring amdgpu: - Sienna Cichlid updates - Navy Flounder updates - DCE6 (SI) support for DC - Plane rotation enabled - TMZ state info ioctl - PCIe DPC recovery support - DC interrupt handling refactor - OLED panel fixes amdkfd: - add SMI events for thermal throttling - SMI interface events ioctl update - process eviction counters radeon: - move to dma_ for allocations - expose sclk via sysfs msm: - DSI support for sm8150/sm8250 - per-process GPU pagetable support - Displayport support mediatek: - move HDMI phy driver to PHY - convert mtk-dpi to bridge API - disable mt2701 tmds tegra: - bridge support exynos: - misc cleanups vc4: - dual display cleanups ast: - cleanups gma500: - conversion to GPIOd API hisilicon: - misc reworks ingenic: - clock handling and format improvements mcde: - DSI support mgag200: - desktop g200 support mxsfb: - i.MX7 + i.MX8M - alpha plane support panfrost: - devfreq support - amlogic SoC support ps8640: - EDID from eDP retrieval tidss: - AM65xx YUV workaround virtio: - virtio-gpu exported resources rcar-du: - R8A7742, R8A774E1 and R8A77961 support - YUV planar format fixes - non-visible plane handling - VSP device reference count fix - Kconfig fix to avoid displaying disabled options in .config" * tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm: (1494 commits) drm/ingenic: Fix bad revert drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_init drm/amdgpu: Remove warning for virtual_display drm/amdgpu: kfd_initialized can be static drm/amd/pm: setup APU dpm clock table in SMU HW initialization drm/amdgpu: prevent spurious warning drm/amdgpu/swsmu: fix ARC build errors drm/amd/display: Fix OPTC_DATA_FORMAT programming drm/amd/display: Don't allow pstate if no support in blank drm/panfrost: increase readl_relaxed_poll_timeout values MAINTAINERS: Update entry for st7703 driver after the rename Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached" drm/amd/display: HDMI remote sink need mode validation for Linux drm/amd/display: Change to correct unit on audio rate drm/amd/display: Avoid set zero in the requested clk drm/amdgpu: align frag_end to covered address space drm/amdgpu: fix NULL pointer dereference for Renoir drm/vmwgfx: fix regression in thp code due to ttm init refactor. drm/amdgpu/swsmu: add interrupt work handler for smu11 parts drm/amdgpu/swsmu: add interrupt work function ...
2020-10-15 10:46:16 -07:00
parent 726eb70e0d 640eee067d
commit 93b694d096
1295 changed files with 65076 additions and 20247 deletions
--- a/include/drm/bridge/dw_mipi_dsi.h
+++ b/include/drm/bridge/dw_mipi_dsi.h
@@ -36,6 +36,7 @@ struct dw_mipi_dsi_phy_ops {
 			     unsigned int *lane_mbps);
 	int (*get_timing)(void *priv_data, unsigned int lane_mbps,
 			  struct dw_mipi_dsi_dphy_timing *timing);
+	int (*get_esc_clk_rate)(void *priv_data, unsigned int *esc_clk_rate);
 };

 struct dw_mipi_dsi_host_ops {
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -74,6 +74,9 @@ void
 drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev,
 					      struct drm_atomic_state *old_state);

+void
+drm_atomic_helper_calc_timestamping_constants(struct drm_atomic_state *state);
+
 void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev,
 					       struct drm_atomic_state *state);
 void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1604,10 +1604,13 @@ const char *drm_get_dvi_i_subconnector_name(int val);
 const char *drm_get_dvi_i_select_name(int val);
 const char *drm_get_tv_subconnector_name(int val);
 const char *drm_get_tv_select_name(int val);
+const char *drm_get_dp_subconnector_name(int val);
 const char *drm_get_content_protection_name(int val);
 const char *drm_get_hdcp_content_type_name(int val);

 int drm_mode_create_dvi_i_properties(struct drm_device *dev);
+void drm_connector_attach_dp_subconnector_property(struct drm_connector *connector);
+
 int drm_mode_create_tv_margin_properties(struct drm_device *dev);
 int drm_mode_create_tv_properties(struct drm_device *dev,
 				  unsigned int num_modes,
--- a/include/drm/drm_device.h
+++ b/include/drm/drm_device.h
@@ -92,7 +92,7 @@ struct drm_device {
 	 * NULL.
 	 *
 	 * Instead of using this pointer it is recommended that drivers use
-	 * drm_dev_init() and embed struct &drm_device in their larger
+	 * devm_drm_dev_alloc() and embed struct &drm_device in their larger
 	 * per-device structure.
 	 */
 	void *dev_private;
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -26,6 +26,9 @@
 #include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/types.h>
+#include <drm/drm_connector.h>
+
+struct drm_device;

 /*
 * Unless otherwise noted, all values are from the DP 1.1a spec.  Note that
@@ -384,13 +387,30 @@
 # define DP_DS_PORT_TYPE_DP_DUALMODE        5
 # define DP_DS_PORT_TYPE_WIRELESS           6
 # define DP_DS_PORT_HPD			    (1 << 3)
+# define DP_DS_NON_EDID_MASK		    (0xf << 4)
+# define DP_DS_NON_EDID_720x480i_60	    (1 << 4)
+# define DP_DS_NON_EDID_720x480i_50	    (2 << 4)
+# define DP_DS_NON_EDID_1920x1080i_60	    (3 << 4)
+# define DP_DS_NON_EDID_1920x1080i_50	    (4 << 4)
+# define DP_DS_NON_EDID_1280x720_60	    (5 << 4)
+# define DP_DS_NON_EDID_1280x720_50	    (7 << 4)
 /* offset 1 for VGA is maximum megapixels per second / 8 */
-/* offset 2 */
+/* offset 1 for DVI/HDMI is maximum TMDS clock in Mbps / 2.5 */
+/* offset 2 for VGA/DVI/HDMI */
 # define DP_DS_MAX_BPC_MASK	            (3 << 0)
 # define DP_DS_8BPC		            0
 # define DP_DS_10BPC		            1
 # define DP_DS_12BPC		            2
 # define DP_DS_16BPC		            3
+/* offset 3 for DVI */
+# define DP_DS_DVI_DUAL_LINK		    (1 << 1)
+# define DP_DS_DVI_HIGH_COLOR_DEPTH	    (1 << 2)
+/* offset 3 for HDMI */
+# define DP_DS_HDMI_FRAME_SEQ_TO_FRAME_PACK (1 << 0)
+# define DP_DS_HDMI_YCBCR422_PASS_THROUGH   (1 << 1)
+# define DP_DS_HDMI_YCBCR420_PASS_THROUGH   (1 << 2)
+# define DP_DS_HDMI_YCBCR444_TO_422_CONV    (1 << 3)
+# define DP_DS_HDMI_YCBCR444_TO_420_CONV    (1 << 4)

 #define DP_MAX_DOWNSTREAM_PORTS		    0x10

@@ -983,6 +1003,16 @@
 #define DP_CEC_TX_MESSAGE_BUFFER               0x3020
 #define DP_CEC_MESSAGE_BUFFER_LENGTH             0x10

+#define DP_PROTOCOL_CONVERTER_CONTROL_0		0x3050 /* DP 1.3 */
+# define DP_HDMI_DVI_OUTPUT_CONFIG		(1 << 0) /* DP 1.3 */
+#define DP_PROTOCOL_CONVERTER_CONTROL_1		0x3051 /* DP 1.3 */
+# define DP_CONVERSION_TO_YCBCR420_ENABLE	(1 << 0) /* DP 1.3 */
+# define DP_HDMI_EDID_PROCESSING_DISABLE	(1 << 1) /* DP 1.4 */
+# define DP_HDMI_AUTONOMOUS_SCRAMBLING_DISABLE	(1 << 2) /* DP 1.4 */
+# define DP_HDMI_FORCE_SCRAMBLING		(1 << 3) /* DP 1.4 */
+#define DP_PROTOCOL_CONVERTER_CONTROL_2		0x3052 /* DP 1.3 */
+# define DP_CONVERSION_TO_YCBCR422_ENABLE	(1 << 0) /* DP 1.3 */
+
 #define DP_AUX_HDCP_BKSV		0x68000
 #define DP_AUX_HDCP_RI_PRIME		0x68005
 #define DP_AUX_HDCP_AKSV		0x68007
@@ -1108,6 +1138,9 @@
 #define DP_POWER_DOWN_PHY		0x25
 #define DP_SINK_EVENT_NOTIFY		0x30
 #define DP_QUERY_STREAM_ENC_STATUS	0x38
+#define  DP_QUERY_STREAM_ENC_STATUS_STATE_NO_EXIST	0
+#define  DP_QUERY_STREAM_ENC_STATUS_STATE_INACTIVE	1
+#define  DP_QUERY_STREAM_ENC_STATUS_STATE_ACTIVE	2

 /* DP 1.2 MST sideband reply types */
 #define DP_SIDEBAND_REPLY_ACK		0x00
@@ -1134,6 +1167,7 @@
 #define DP_MST_PHYSICAL_PORT_0 0
 #define DP_MST_LOGICAL_PORT_0 8

+#define DP_LINK_CONSTANT_N_VALUE 0x8000
 #define DP_LINK_STATUS_SIZE	   6
 bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
 			  int lane_count);
@@ -1606,19 +1640,60 @@ static inline ssize_t drm_dp_dpcd_writeb(struct drm_dp_aux *aux,
 	return drm_dp_dpcd_write(aux, offset, &value, 1);
 }

+int drm_dp_read_dpcd_caps(struct drm_dp_aux *aux,
+			  u8 dpcd[DP_RECEIVER_CAP_SIZE]);
+
 int drm_dp_dpcd_read_link_status(struct drm_dp_aux *aux,
 				 u8 status[DP_LINK_STATUS_SIZE]);

 bool drm_dp_send_real_edid_checksum(struct drm_dp_aux *aux,
 				    u8 real_edid_checksum);

-int drm_dp_downstream_max_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
-				const u8 port_cap[4]);
+int drm_dp_read_downstream_info(struct drm_dp_aux *aux,
+				const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+				u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS]);
+bool drm_dp_downstream_is_type(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+			       const u8 port_cap[4], u8 type);
+bool drm_dp_downstream_is_tmds(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+			       const u8 port_cap[4],
+			       const struct edid *edid);
+int drm_dp_downstream_max_dotclock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+				   const u8 port_cap[4]);
+int drm_dp_downstream_max_tmds_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+				     const u8 port_cap[4],
+				     const struct edid *edid);
+int drm_dp_downstream_min_tmds_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+				     const u8 port_cap[4],
+				     const struct edid *edid);
 int drm_dp_downstream_max_bpc(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
-			      const u8 port_cap[4]);
+			      const u8 port_cap[4],
+			      const struct edid *edid);
+bool drm_dp_downstream_420_passthrough(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+				       const u8 port_cap[4]);
+bool drm_dp_downstream_444_to_420_conversion(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+					     const u8 port_cap[4]);
+struct drm_display_mode *drm_dp_downstream_mode(struct drm_device *dev,
+						const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+						const u8 port_cap[4]);
 int drm_dp_downstream_id(struct drm_dp_aux *aux, char id[6]);
-void drm_dp_downstream_debug(struct seq_file *m, const u8 dpcd[DP_RECEIVER_CAP_SIZE],
-			     const u8 port_cap[4], struct drm_dp_aux *aux);
+void drm_dp_downstream_debug(struct seq_file *m,
+			     const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+			     const u8 port_cap[4],
+			     const struct edid *edid,
+			     struct drm_dp_aux *aux);
+enum drm_mode_subconnector
+drm_dp_subconnector_type(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+			 const u8 port_cap[4]);
+void drm_dp_set_subconnector_property(struct drm_connector *connector,
+				      enum drm_connector_status status,
+				      const u8 *dpcd,
+				      const u8 port_cap[4]);
+
+struct drm_dp_desc;
+bool drm_dp_read_sink_count_cap(struct drm_connector *connector,
+				const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+				const struct drm_dp_desc *desc);
+int drm_dp_read_sink_count(struct drm_dp_aux *aux);

 void drm_dp_remote_aux_init(struct drm_dp_aux *aux);
 void drm_dp_aux_init(struct drm_dp_aux *aux);
@@ -1678,7 +1753,8 @@ enum drm_dp_quirk {
 	 * @DP_DPCD_QUIRK_NO_SINK_COUNT:
 	 *
 	 * The device does not set SINK_COUNT to a non-zero value.
-	 * The driver should ignore SINK_COUNT during detection.
+	 * The driver should ignore SINK_COUNT during detection. Note that
+	 * drm_dp_read_sink_count_cap() automatically checks for this quirk.
 	 */
 	DP_DPCD_QUIRK_NO_SINK_COUNT,
 	/**
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -313,6 +313,34 @@ struct drm_dp_remote_i2c_write_ack_reply {
 	u8 port_number;
 };

+struct drm_dp_query_stream_enc_status_ack_reply {
+	/* Bit[23:16]- Stream Id */
+	u8 stream_id;
+
+	/* Bit[15]- Signed */
+	bool reply_signed;
+
+	/* Bit[10:8]- Stream Output Sink Type */
+	bool unauthorizable_device_present;
+	bool legacy_device_present;
+	bool query_capable_device_present;
+
+	/* Bit[12:11]- Stream Output CP Type */
+	bool hdcp_1x_device_present;
+	bool hdcp_2x_device_present;
+
+	/* Bit[4]- Stream Authentication */
+	bool auth_completed;
+
+	/* Bit[3]- Stream Encryption */
+	bool encryption_enabled;
+
+	/* Bit[2]- Stream Repeater Function Present */
+	bool repeater_present;
+
+	/* Bit[1:0]- Stream State */
+	u8 state;
+};

 #define DRM_DP_MAX_SDP_STREAMS 16
 struct drm_dp_allocate_payload {
@@ -374,6 +402,15 @@ struct drm_dp_remote_i2c_write {
 	u8 *bytes;
 };

+struct drm_dp_query_stream_enc_status {
+	u8 stream_id;
+	u8 client_id[7];	/* 56-bit nonce */
+	u8 stream_event;
+	bool valid_stream_event;
+	u8 stream_behavior;
+	u8 valid_stream_behavior;
+};
+
 /* this covers ENUM_RESOURCES, POWER_DOWN_PHY, POWER_UP_PHY */
 struct drm_dp_port_number_req {
 	u8 port_number;
@@ -422,6 +459,8 @@ struct drm_dp_sideband_msg_req_body {

 		struct drm_dp_remote_i2c_read i2c_read;
 		struct drm_dp_remote_i2c_write i2c_write;
+
+		struct drm_dp_query_stream_enc_status enc_status;
 	} u;
 };

@@ -444,6 +483,8 @@ struct drm_dp_sideband_msg_reply_body {
 		struct drm_dp_remote_i2c_read_ack_reply remote_i2c_read_ack;
 		struct drm_dp_remote_i2c_read_nak_reply remote_i2c_read_nack;
 		struct drm_dp_remote_i2c_write_ack_reply remote_i2c_write_ack;
+
+		struct drm_dp_query_stream_enc_status_ack_reply enc_status;
 	} u;
 };

@@ -728,10 +769,9 @@ int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr,

 void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr);

-
+bool drm_dp_read_mst_cap(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
 int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool mst_state);

-
 int drm_dp_mst_hpd_irq(struct drm_dp_mst_topology_mgr *mgr, u8 *esi, bool *handled);


@@ -808,6 +848,9 @@ drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
 				 struct drm_dp_mst_port *port);
 int drm_dp_send_power_updown_phy(struct drm_dp_mst_topology_mgr *mgr,
 				 struct drm_dp_mst_port *port, bool power_up);
+int drm_dp_send_query_stream_enc_status(struct drm_dp_mst_topology_mgr *mgr,
+		struct drm_dp_mst_port *port,
+		struct drm_dp_query_stream_enc_status_ack_reply *status);
 int __must_check drm_dp_mst_atomic_check(struct drm_atomic_state *state);

 void drm_dp_mst_get_port_malloc(struct drm_dp_mst_port *port);
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -163,13 +163,12 @@ struct drm_driver {
 	/**
 	 * @load:
 	 *
-	 * Backward-compatible driver callback to complete
-	 * initialization steps after the driver is registered.  For
-	 * this reason, may suffer from race conditions and its use is
-	 * deprecated for new drivers.  It is therefore only supported
-	 * for existing drivers not yet converted to the new scheme.
-	 * See drm_dev_init() and drm_dev_register() for proper and
-	 * race-free way to set up a &struct drm_device.
+	 * Backward-compatible driver callback to complete initialization steps
+	 * after the driver is registered.  For this reason, may suffer from
+	 * race conditions and its use is deprecated for new drivers.  It is
+	 * therefore only supported for existing drivers not yet converted to
+	 * the new scheme.  See devm_drm_dev_alloc() and drm_dev_register() for
+	 * proper and race-free way to set up a &struct drm_device.
 	 *
 	 * This is deprecated, do not use!
 	 *
@@ -589,13 +588,6 @@ struct drm_driver {
 	int dev_priv_size;
 };

-int drm_dev_init(struct drm_device *dev,
-		 struct drm_driver *driver,
-		 struct device *parent);
-int devm_drm_dev_init(struct device *parent,
-		      struct drm_device *dev,
-		      struct drm_driver *driver);
-
 void *__devm_drm_dev_alloc(struct device *parent, struct drm_driver *driver,
 			   size_t size, size_t offset);

--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -517,4 +517,8 @@ void drm_edid_get_monitor_name(struct edid *edid, char *name,
 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
 					   int hsize, int vsize, int fresh,
 					   bool rb);
+struct drm_display_mode *
+drm_display_mode_from_cea_vic(struct drm_device *dev,
+			      u8 video_code);
+
 #endif /* __DRM_EDID_H__ */
--- a/include/drm/drm_gem_vram_helper.h
+++ b/include/drm/drm_gem_vram_helper.h
@@ -9,7 +9,6 @@
 #include <drm/drm_modes.h>
 #include <drm/ttm/ttm_bo_api.h>
 #include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_placement.h>

 #include <linux/kernel.h> /* for container_of() */

@@ -20,9 +19,9 @@ struct drm_simple_display_pipe;
 struct filp;
 struct vm_area_struct;

-#define DRM_GEM_VRAM_PL_FLAG_VRAM	TTM_PL_FLAG_VRAM
-#define DRM_GEM_VRAM_PL_FLAG_SYSTEM	TTM_PL_FLAG_SYSTEM
-#define DRM_GEM_VRAM_PL_FLAG_TOPDOWN	TTM_PL_FLAG_TOPDOWN
+#define DRM_GEM_VRAM_PL_FLAG_SYSTEM	(1 << 0)
+#define DRM_GEM_VRAM_PL_FLAG_VRAM	(1 << 1)
+#define DRM_GEM_VRAM_PL_FLAG_TOPDOWN	(1 << 2)

 /*
 * Buffer-object helpers
@@ -101,9 +100,6 @@ u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo);
 s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo);
 int drm_gem_vram_pin(struct drm_gem_vram_object *gbo, unsigned long pl_flag);
 int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo);
-void *drm_gem_vram_kmap(struct drm_gem_vram_object *gbo, bool map,
-			bool *is_iomem);
-void drm_gem_vram_kunmap(struct drm_gem_vram_object *gbo);
 void *drm_gem_vram_vmap(struct drm_gem_vram_object *gbo);
 void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo, void *vaddr);

--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -338,7 +338,7 @@ static inline u64 drm_mm_hole_node_end(const struct drm_mm_node *hole_node)

 /**
 * drm_mm_nodes - list of nodes under the drm_mm range manager
- * @mm: the struct drm_mm range manger
+ * @mm: the struct drm_mm range manager
 *
 * As the drm_mm range manager hides its node_list deep with its
 * structure, extracting it looks painful and repetitive. This is
--- a/include/drm/drm_mode_config.h
+++ b/include/drm/drm_mode_config.h
@@ -680,6 +680,12 @@ struct drm_mode_config {
 	 */
 	struct drm_property *dvi_i_select_subconnector_property;

+	/**
+	 * @dp_subconnector_property: Optional DP property to differentiate
+	 * between different DP downstream port types.
+	 */
+	struct drm_property *dp_subconnector_property;
+
 	/**
 	 * @tv_subconnector_property: Optional TV property to differentiate
 	 * between different TV connector types.
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -350,14 +350,15 @@ struct drm_display_mode {
 	u8 type;

 	/**
-	 * @private_flags:
+	 * @expose_to_userspace:
 	 *
-	 * Driver private flags. private_flags can only be used for mode
-	 * objects passed to drivers in modeset operations. It shouldn't be used
-	 * by atomic drivers since they can store any additional data by
-	 * subclassing state structures.
+	 * Indicates whether the mode is to be exposed to the userspace.
+	 * This is to maintain a set of exposed modes while preparing
+	 * user-mode's list in drm_mode_getconnector ioctl. The purpose of
+	 * this only lies in the ioctl function, and is not to be used
+	 * outside the function.
 	 */
-	int private_flags;
+	bool expose_to_userspace;

 	/**
 	 * @head:
@@ -366,19 +367,6 @@ struct drm_display_mode {
 	 */
 	struct list_head head;

-	/**
-	 * @export_head:
-	 *
-	 * struct list_head for modes to be exposed to the userspace.
-	 * This is to maintain a list of exposed modes while preparing
-	 * user-mode's list in drm_mode_getconnector ioctl. The purpose of this
-	 * list_head only lies in the ioctl function, and is not expected to be
-	 * used outside the function.
-	 * Once used, the stale pointers are not reset, but left as it is, to
-	 * avoid overhead of protecting it by mode_config.mutex.
-	 */
-	struct list_head export_head;
-
 	/**
 	 * @name:
 	 *
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -35,6 +35,8 @@ struct drm_device;
 struct drm_panel;
 struct display_timing;

+enum drm_panel_orientation;
+
 /**
 * struct drm_panel_funcs - perform operations on a given panel
 *
@@ -175,12 +177,9 @@ void drm_panel_init(struct drm_panel *panel, struct device *dev,
 		    const struct drm_panel_funcs *funcs,
 		    int connector_type);

-int drm_panel_add(struct drm_panel *panel);
+void drm_panel_add(struct drm_panel *panel);
 void drm_panel_remove(struct drm_panel *panel);

-int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector);
-void drm_panel_detach(struct drm_panel *panel);
-
 int drm_panel_prepare(struct drm_panel *panel);
 int drm_panel_unprepare(struct drm_panel *panel);

@@ -191,11 +190,19 @@ int drm_panel_get_modes(struct drm_panel *panel, struct drm_connector *connector

 #if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL)
 struct drm_panel *of_drm_find_panel(const struct device_node *np);
+int of_drm_get_panel_orientation(const struct device_node *np,
+				 enum drm_panel_orientation *orientation);
 #else
 static inline struct drm_panel *of_drm_find_panel(const struct device_node *np)
 {
 	return ERR_PTR(-ENODEV);
 }
+
+static inline int of_drm_get_panel_orientation(const struct device_node *np,
+					       enum drm_panel_orientation *orientation)
+{
+	return -ENODEV;
+}
 #endif

 #if IS_ENABLED(CONFIG_DRM_PANEL) && (IS_BUILTIN(CONFIG_BACKLIGHT_CLASS_DEVICE) || \
--- a/include/drm/drm_prime.h
+++ b/include/drm/drm_prime.h
@@ -88,10 +88,13 @@ void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr);
 int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma);

-struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
+struct sg_table *drm_prime_pages_to_sg(struct drm_device *dev,
+				       struct page **pages, unsigned int nr_pages);
 struct dma_buf *drm_gem_prime_export(struct drm_gem_object *obj,
 				     int flags);

+unsigned long drm_prime_get_contiguous_size(struct sg_table *sgt);
+
 /* helper functions for importing */
 struct drm_gem_object *drm_gem_prime_import_dev(struct drm_device *dev,
 						struct dma_buf *dma_buf,
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -33,15 +33,16 @@
 struct drm_gpu_scheduler;
 struct drm_sched_rq;

+/* These are often used as an (initial) index
+ * to an array, and as such should start at 0.
+ */
 enum drm_sched_priority {
 	DRM_SCHED_PRIORITY_MIN,
-	DRM_SCHED_PRIORITY_LOW = DRM_SCHED_PRIORITY_MIN,
 	DRM_SCHED_PRIORITY_NORMAL,
-	DRM_SCHED_PRIORITY_HIGH_SW,
-	DRM_SCHED_PRIORITY_HIGH_HW,
+	DRM_SCHED_PRIORITY_HIGH,
 	DRM_SCHED_PRIORITY_KERNEL,
-	DRM_SCHED_PRIORITY_MAX,
-	DRM_SCHED_PRIORITY_INVALID = -1,
+
+	DRM_SCHED_PRIORITY_COUNT,
 	DRM_SCHED_PRIORITY_UNSET = -2
 };

@@ -274,7 +275,7 @@ struct drm_gpu_scheduler {
 	uint32_t			hw_submission_limit;
 	long				timeout;
 	const char			*name;
-	struct drm_sched_rq		sched_rq[DRM_SCHED_PRIORITY_MAX];
+	struct drm_sched_rq		sched_rq[DRM_SCHED_PRIORITY_COUNT];
 	wait_queue_head_t		wake_up_worker;
 	wait_queue_head_t		job_scheduled;
 	atomic_t			hw_rq_count;
--- a/include/drm/i915_pciids.h
+++ b/include/drm/i915_pciids.h
@@ -258,9 +258,7 @@
 	INTEL_VGA_DEVICE(0x0f30, info), \
 	INTEL_VGA_DEVICE(0x0f31, info), \
 	INTEL_VGA_DEVICE(0x0f32, info), \
-	INTEL_VGA_DEVICE(0x0f33, info), \
-	INTEL_VGA_DEVICE(0x0157, info), \
-	INTEL_VGA_DEVICE(0x0155, info)
+	INTEL_VGA_DEVICE(0x0f33, info)

 #define INTEL_BDW_ULT_GT1_IDS(info) \
 	INTEL_VGA_DEVICE(0x1606, info), /* GT1 ULT */ \
@@ -596,19 +594,25 @@
 	INTEL_VGA_DEVICE(0x4E51, info)

 /* TGL */
-#define INTEL_TGL_12_IDS(info) \
+#define INTEL_TGL_12_GT1_IDS(info) \
+	INTEL_VGA_DEVICE(0x9A60, info), \
+	INTEL_VGA_DEVICE(0x9A68, info), \
+	INTEL_VGA_DEVICE(0x9A70, info)
+
+#define INTEL_TGL_12_GT2_IDS(info) \
 	INTEL_VGA_DEVICE(0x9A40, info), \
 	INTEL_VGA_DEVICE(0x9A49, info), \
 	INTEL_VGA_DEVICE(0x9A59, info), \
-	INTEL_VGA_DEVICE(0x9A60, info), \
-	INTEL_VGA_DEVICE(0x9A68, info), \
-	INTEL_VGA_DEVICE(0x9A70, info), \
 	INTEL_VGA_DEVICE(0x9A78, info), \
 	INTEL_VGA_DEVICE(0x9AC0, info), \
 	INTEL_VGA_DEVICE(0x9AC9, info), \
 	INTEL_VGA_DEVICE(0x9AD9, info), \
 	INTEL_VGA_DEVICE(0x9AF8, info)

+#define INTEL_TGL_12_IDS(info) \
+	INTEL_TGL_12_GT1_IDS(info), \
+	INTEL_TGL_12_GT2_IDS(info)
+
 /* RKL */
 #define INTEL_RKL_IDS(info) \
 	INTEL_VGA_DEVICE(0x4C80, info), \
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -42,6 +42,8 @@
 #include <linux/bitmap.h>
 #include <linux/dma-resv.h>

+#include "ttm_resource.h"
+
 struct ttm_bo_global;

 struct ttm_bo_device;
@@ -54,55 +56,6 @@ struct ttm_place;

 struct ttm_lru_bulk_move;

-/**
- * struct ttm_bus_placement
- *
- * @addr:		mapped virtual address
- * @base:		bus base address
- * @is_iomem:		is this io memory ?
- * @size:		size in byte
- * @offset:		offset from the base address
- * @io_reserved_vm:     The VM system has a refcount in @io_reserved_count
- * @io_reserved_count:  Refcounting the numbers of callers to ttm_mem_io_reserve
- *
- * Structure indicating the bus placement of an object.
- */
-struct ttm_bus_placement {
-	void		*addr;
-	phys_addr_t	base;
-	unsigned long	size;
-	unsigned long	offset;
-	bool		is_iomem;
-	bool		io_reserved_vm;
-	uint64_t        io_reserved_count;
-};
-
-
-/**
- * struct ttm_mem_reg
- *
- * @mm_node: Memory manager node.
- * @size: Requested size of memory region.
- * @num_pages: Actual size of memory region in pages.
- * @page_alignment: Page alignment.
- * @placement: Placement flags.
- * @bus: Placement on io bus accessible to the CPU
- *
- * Structure indicating the placement and space resources used by a
- * buffer object.
- */
-
-struct ttm_mem_reg {
-	void *mm_node;
-	unsigned long start;
-	unsigned long size;
-	unsigned long num_pages;
-	uint32_t page_alignment;
-	uint32_t mem_type;
-	uint32_t placement;
-	struct ttm_bus_placement bus;
-};
-
 /**
 * enum ttm_bo_type
 *
@@ -185,10 +138,9 @@ struct ttm_buffer_object {
 	 * Members protected by the bo::resv::reserved lock.
 	 */

-	struct ttm_mem_reg mem;
+	struct ttm_resource mem;
 	struct file *persistent_swap_storage;
 	struct ttm_tt *ttm;
-	bool evicted;
 	bool deleted;

 	/**
@@ -198,7 +150,6 @@ struct ttm_buffer_object {
 	struct list_head lru;
 	struct list_head ddestroy;
 	struct list_head swap;
-	struct list_head io_reserve_lru;

 	/**
 	 * Members protected by a bo reservation.
@@ -314,12 +265,12 @@ int ttm_bo_wait(struct ttm_buffer_object *bo, bool interruptible, bool no_wait);
 * ttm_bo_mem_compat - Check if proposed placement is compatible with a bo
 *
 * @placement:  Return immediately if buffer is busy.
- * @mem:  The struct ttm_mem_reg indicating the region where the bo resides
+ * @mem:  The struct ttm_resource indicating the region where the bo resides
 * @new_flags: Describes compatible placement found
 *
 * Returns true if the placement is compatible
 */
-bool ttm_bo_mem_compat(struct ttm_placement *placement, struct ttm_mem_reg *mem,
+bool ttm_bo_mem_compat(struct ttm_placement *placement, struct ttm_resource *mem,
 		       uint32_t *new_flags);

 /**
@@ -400,18 +351,6 @@ void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, int resched);
 bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
 			      const struct ttm_place *place);

-/**
- * ttm_bo_acc_size
- *
- * @bdev: Pointer to a ttm_bo_device struct.
- * @bo_size: size of the buffer object in byte.
- * @struct_size: size of the structure holding buffer object datas
- *
- * Returns size to account for a buffer object
- */
-size_t ttm_bo_acc_size(struct ttm_bo_device *bdev,
-		       unsigned long bo_size,
-		       unsigned struct_size);
 size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
 			   unsigned long bo_size,
 			   unsigned struct_size);
@@ -531,52 +470,6 @@ int ttm_bo_create(struct ttm_bo_device *bdev, unsigned long size,
 		  uint32_t page_alignment, bool interruptible,
 		  struct ttm_buffer_object **p_bo);

-/**
- * ttm_bo_init_mm
- *
- * @bdev: Pointer to a ttm_bo_device struct.
- * @mem_type: The memory type.
- * @p_size: size managed area in pages.
- *
- * Initialize a manager for a given memory type.
- * Note: if part of driver firstopen, it must be protected from a
- * potentially racing lastclose.
- * Returns:
- * -EINVAL: invalid size or memory type.
- * -ENOMEM: Not enough memory.
- * May also return driver-specified errors.
- */
-int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type,
-		   unsigned long p_size);
-
-/**
- * ttm_bo_clean_mm
- *
- * @bdev: Pointer to a ttm_bo_device struct.
- * @mem_type: The memory type.
- *
- * Take down a manager for a given memory type after first walking
- * the LRU list to evict any buffers left alive.
- *
- * Normally, this function is part of lastclose() or unload(), and at that
- * point there shouldn't be any buffers left created by user-space, since
- * there should've been removed by the file descriptor release() method.
- * However, before this function is run, make sure to signal all sync objects,
- * and verify that the delayed delete queue is empty. The driver must also
- * make sure that there are no NO_EVICT buffers present in this memory type
- * when the call is made.
- *
- * If this function is part of a VT switch, the caller must make sure that
- * there are no appications currently validating buffers before this
- * function is called. The caller can do that by first taking the
- * struct ttm_bo_device::ttm_lock in write mode.
- *
- * Returns:
- * -EINVAL: invalid or uninitialized memory type.
- * -EBUSY: There are still buffers left in this memory type.
- */
-int ttm_bo_clean_mm(struct ttm_bo_device *bdev, unsigned mem_type);
-
 /**
 * ttm_bo_evict_mm
 *
@@ -713,6 +606,12 @@ static inline bool ttm_bo_uses_embedded_gem_object(struct ttm_buffer_object *bo)
 	return bo->base.dev != NULL;
 }

+int ttm_mem_evict_first(struct ttm_bo_device *bdev,
+			struct ttm_resource_manager *man,
+			const struct ttm_place *place,
+			struct ttm_operation_ctx *ctx,
+			struct ww_acquire_ctx *ticket);
+
 /* Default number of pre-faulted pages in the TTM fault handler */
 #define TTM_BO_VM_NUM_PREFAULT 16

--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -43,171 +43,10 @@
 #include "ttm_placement.h"
 #include "ttm_tt.h"

-#define TTM_MAX_BO_PRIORITY	4U
-
-#define TTM_MEMTYPE_FLAG_FIXED         (1 << 0)	/* Fixed (on-card) PCI memory */
-#define TTM_MEMTYPE_FLAG_MAPPABLE      (1 << 1)	/* Memory mappable */
-
-struct ttm_mem_type_manager;
-
-struct ttm_mem_type_manager_func {
-	/**
-	 * struct ttm_mem_type_manager member init
-	 *
-	 * @man: Pointer to a memory type manager.
-	 * @p_size: Implementation dependent, but typically the size of the
-	 * range to be managed in pages.
-	 *
-	 * Called to initialize a private range manager. The function is
-	 * expected to initialize the man::priv member.
-	 * Returns 0 on success, negative error code on failure.
-	 */
-	int  (*init)(struct ttm_mem_type_manager *man, unsigned long p_size);
-
-	/**
-	 * struct ttm_mem_type_manager member takedown
-	 *
-	 * @man: Pointer to a memory type manager.
-	 *
-	 * Called to undo the setup done in init. All allocated resources
-	 * should be freed.
-	 */
-	int  (*takedown)(struct ttm_mem_type_manager *man);
-
-	/**
-	 * struct ttm_mem_type_manager member get_node
-	 *
-	 * @man: Pointer to a memory type manager.
-	 * @bo: Pointer to the buffer object we're allocating space for.
-	 * @placement: Placement details.
-	 * @flags: Additional placement flags.
-	 * @mem: Pointer to a struct ttm_mem_reg to be filled in.
-	 *
-	 * This function should allocate space in the memory type managed
-	 * by @man. Placement details if
-	 * applicable are given by @placement. If successful,
-	 * @mem::mm_node should be set to a non-null value, and
-	 * @mem::start should be set to a value identifying the beginning
-	 * of the range allocated, and the function should return zero.
-	 * If the memory region accommodate the buffer object, @mem::mm_node
-	 * should be set to NULL, and the function should return 0.
-	 * If a system error occurred, preventing the request to be fulfilled,
-	 * the function should return a negative error code.
-	 *
-	 * Note that @mem::mm_node will only be dereferenced by
-	 * struct ttm_mem_type_manager functions and optionally by the driver,
-	 * which has knowledge of the underlying type.
-	 *
-	 * This function may not be called from within atomic context, so
-	 * an implementation can and must use either a mutex or a spinlock to
-	 * protect any data structures managing the space.
-	 */
-	int  (*get_node)(struct ttm_mem_type_manager *man,
-			 struct ttm_buffer_object *bo,
-			 const struct ttm_place *place,
-			 struct ttm_mem_reg *mem);
-
-	/**
-	 * struct ttm_mem_type_manager member put_node
-	 *
-	 * @man: Pointer to a memory type manager.
-	 * @mem: Pointer to a struct ttm_mem_reg to be filled in.
-	 *
-	 * This function frees memory type resources previously allocated
-	 * and that are identified by @mem::mm_node and @mem::start. May not
-	 * be called from within atomic context.
-	 */
-	void (*put_node)(struct ttm_mem_type_manager *man,
-			 struct ttm_mem_reg *mem);
-
-	/**
-	 * struct ttm_mem_type_manager member debug
-	 *
-	 * @man: Pointer to a memory type manager.
-	 * @printer: Prefix to be used in printout to identify the caller.
-	 *
-	 * This function is called to print out the state of the memory
-	 * type manager to aid debugging of out-of-memory conditions.
-	 * It may not be called from within atomic context.
-	 */
-	void (*debug)(struct ttm_mem_type_manager *man,
-		      struct drm_printer *printer);
-};
-
-/**
- * struct ttm_mem_type_manager
- *
- * @has_type: The memory type has been initialized.
- * @use_type: The memory type is enabled.
- * @flags: TTM_MEMTYPE_XX flags identifying the traits of the memory
- * managed by this memory type.
- * @gpu_offset: If used, the GPU offset of the first managed page of
- * fixed memory or the first managed location in an aperture.
- * @size: Size of the managed region.
- * @available_caching: A mask of available caching types, TTM_PL_FLAG_XX,
- * as defined in ttm_placement_common.h
- * @default_caching: The default caching policy used for a buffer object
- * placed in this memory type if the user doesn't provide one.
- * @func: structure pointer implementing the range manager. See above
- * @priv: Driver private closure for @func.
- * @io_reserve_mutex: Mutex optionally protecting shared io_reserve structures
- * @use_io_reserve_lru: Use an lru list to try to unreserve io_mem_regions
- * reserved by the TTM vm system.
- * @io_reserve_lru: Optional lru list for unreserving io mem regions.
- * @move_lock: lock for move fence
- * static information. bdev::driver::io_mem_free is never used.
- * @lru: The lru list for this memory type.
- * @move: The fence of the last pipelined move operation.
- *
- * This structure is used to identify and manage memory types for a device.
- * It's set up by the ttm_bo_driver::init_mem_type method.
- */
-
-
-
-struct ttm_mem_type_manager {
-	struct ttm_bo_device *bdev;
-
-	/*
-	 * No protection. Constant from start.
-	 */
-
-	bool has_type;
-	bool use_type;
-	uint32_t flags;
-	uint64_t size;
-	uint32_t available_caching;
-	uint32_t default_caching;
-	const struct ttm_mem_type_manager_func *func;
-	void *priv;
-	struct mutex io_reserve_mutex;
-	bool use_io_reserve_lru;
-	spinlock_t move_lock;
-
-	/*
-	 * Protected by @io_reserve_mutex:
-	 */
-
-	struct list_head io_reserve_lru;
-
-	/*
-	 * Protected by the global->lru_lock.
-	 */
-
-	struct list_head lru[TTM_MAX_BO_PRIORITY];
-
-	/*
-	 * Protected by @move_lock.
-	 */
-	struct dma_fence *move;
-};
-
 /**
 * struct ttm_bo_driver
 *
 * @create_ttm_backend_entry: Callback to create a struct ttm_backend.
- * @init_mem_type: Callback to initialize a struct ttm_mem_type_manager
- * structure.
 * @evict_flags: Callback to obtain placement flags when a buffer is evicted.
 * @move: Callback for a driver to hook in accelerated functions to
 * move a buffer.
@@ -238,8 +77,9 @@ struct ttm_bo_driver {
 	 * Returns:
 	 * -ENOMEM: Out of memory.
 	 */
-	int (*ttm_tt_populate)(struct ttm_tt *ttm,
-			struct ttm_operation_ctx *ctx);
+	int (*ttm_tt_populate)(struct ttm_bo_device *bdev,
+			       struct ttm_tt *ttm,
+			       struct ttm_operation_ctx *ctx);

 	/**
 	 * ttm_tt_unpopulate
@@ -248,10 +88,43 @@ struct ttm_bo_driver {
 	 *
 	 * Free all backing page
 	 */
-	void (*ttm_tt_unpopulate)(struct ttm_tt *ttm);
+	void (*ttm_tt_unpopulate)(struct ttm_bo_device *bdev, struct ttm_tt *ttm);

-	int (*init_mem_type)(struct ttm_bo_device *bdev, uint32_t type,
-			     struct ttm_mem_type_manager *man);
+	/**
+	 * ttm_tt_bind
+	 *
+	 * @bdev: Pointer to a ttm device
+	 * @ttm: Pointer to a struct ttm_tt.
+	 * @bo_mem: Pointer to a struct ttm_resource describing the
+	 * memory type and location for binding.
+	 *
+	 * Bind the backend pages into the aperture in the location
+	 * indicated by @bo_mem. This function should be able to handle
+	 * differences between aperture and system page sizes.
+	 */
+	int (*ttm_tt_bind)(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_resource *bo_mem);
+
+	/**
+	 * ttm_tt_unbind
+	 *
+	 * @bdev: Pointer to a ttm device
+	 * @ttm: Pointer to a struct ttm_tt.
+	 *
+	 * Unbind previously bound backend pages. This function should be
+	 * able to handle differences between aperture and system page sizes.
+	 */
+	void (*ttm_tt_unbind)(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
+
+	/**
+	 * ttm_tt_destroy
+	 *
+	 * @bdev: Pointer to a ttm device
+	 * @ttm: Pointer to a struct ttm_tt.
+	 *
+	 * Destroy the backend. This will be call back from ttm_tt_destroy so
+	 * don't call ttm_tt_destroy from the callback or infinite loop.
+	 */
+	void (*ttm_tt_destroy)(struct ttm_bo_device *bdev, struct ttm_tt *ttm);

 	/**
 	 * struct ttm_bo_driver member eviction_valuable
@@ -290,7 +163,7 @@ struct ttm_bo_driver {
 	 */
 	int (*move)(struct ttm_buffer_object *bo, bool evict,
 		    struct ttm_operation_ctx *ctx,
-		    struct ttm_mem_reg *new_mem);
+		    struct ttm_resource *new_mem);

 	/**
 	 * struct ttm_bo_driver_member verify_access
@@ -316,7 +189,7 @@ struct ttm_bo_driver {
 	 */
 	void (*move_notify)(struct ttm_buffer_object *bo,
 			    bool evict,
-			    struct ttm_mem_reg *new_mem);
+			    struct ttm_resource *new_mem);
 	/* notify the driver we are taking a fault on this BO
 	 * and have reserved it */
 	int (*fault_reserve_notify)(struct ttm_buffer_object *bo);
@@ -333,9 +206,9 @@ struct ttm_bo_driver {
 	 * are balanced.
 	 */
 	int (*io_mem_reserve)(struct ttm_bo_device *bdev,
-			      struct ttm_mem_reg *mem);
+			      struct ttm_resource *mem);
 	void (*io_mem_free)(struct ttm_bo_device *bdev,
-			    struct ttm_mem_reg *mem);
+			    struct ttm_resource *mem);

 	/**
 	 * Return the pfn for a given page_offset inside the BO.
@@ -429,7 +302,7 @@ extern struct ttm_bo_global {
 * struct ttm_bo_device - Buffer object driver device-specific data.
 *
 * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
- * @man: An array of mem_type_managers.
+ * @man: An array of resource_managers.
 * @vma_manager: Address space manager (pointer)
 * lru_lock: Spinlock that protects the buffer+device lru lists and
 * ddestroy lists.
@@ -447,8 +320,11 @@ struct ttm_bo_device {
 	 */
 	struct list_head device_list;
 	struct ttm_bo_driver *driver;
-	struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
-
+	/*
+	 * access via ttm_manager_type.
+	 */
+	struct ttm_resource_manager sysman;
+	struct ttm_resource_manager *man_drv[TTM_NUM_MEM_TYPES];
 	/*
 	 * Protected by internal locks.
 	 */
@@ -476,6 +352,19 @@ struct ttm_bo_device {
 	bool no_retry;
 };

+static inline struct ttm_resource_manager *ttm_manager_type(struct ttm_bo_device *bdev,
+							    int mem_type)
+{
+	return bdev->man_drv[mem_type];
+}
+
+static inline void ttm_set_driver_manager(struct ttm_bo_device *bdev,
+					  int type,
+					  struct ttm_resource_manager *manager)
+{
+	bdev->man_drv[type] = manager;
+}
+
 /**
 * struct ttm_lru_bulk_move_pos
 *
@@ -504,23 +393,6 @@ struct ttm_lru_bulk_move {
 	struct ttm_lru_bulk_move_pos swap[TTM_MAX_BO_PRIORITY];
 };

-/**
- * ttm_flag_masked
- *
- * @old: Pointer to the result and original value.
- * @new: New value of bits.
- * @mask: Mask of bits to change.
- *
- * Convenience function to change a number of bits identified by a mask.
- */
-
-static inline uint32_t
-ttm_flag_masked(uint32_t *old, uint32_t new, uint32_t mask)
-{
-	*old ^= (*old ^ new) & mask;
-	return *old;
-}
-
 /*
 * ttm_bo.c
 */
@@ -531,7 +403,7 @@ ttm_flag_masked(uint32_t *old, uint32_t new, uint32_t mask)
 * @bo: Pointer to a struct ttm_buffer_object. the data of which
 * we want to allocate space for.
 * @proposed_placement: Proposed new placement for the buffer object.
- * @mem: A struct ttm_mem_reg.
+ * @mem: A struct ttm_resource.
 * @interruptible: Sleep interruptible when sliping.
 * @no_wait_gpu: Return immediately if the GPU is busy.
 *
@@ -546,11 +418,9 @@ ttm_flag_masked(uint32_t *old, uint32_t new, uint32_t mask)
 */
 int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 		     struct ttm_placement *placement,
-		     struct ttm_mem_reg *mem,
+		     struct ttm_resource *mem,
 		     struct ttm_operation_ctx *ctx);

-void ttm_bo_mem_put(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem);
-
 int ttm_bo_device_release(struct ttm_bo_device *bdev);

 /**
@@ -591,35 +461,31 @@ void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo);
 */
 void ttm_bo_unmap_virtual_locked(struct ttm_buffer_object *bo);

-int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo);
-void ttm_mem_io_free_vm(struct ttm_buffer_object *bo);
-int ttm_mem_io_lock(struct ttm_mem_type_manager *man, bool interruptible);
-void ttm_mem_io_unlock(struct ttm_mem_type_manager *man);
-
 /**
- * __ttm_bo_reserve:
+ * ttm_bo_reserve:
 *
 * @bo: A pointer to a struct ttm_buffer_object.
 * @interruptible: Sleep interruptible if waiting.
 * @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
 * @ticket: ticket used to acquire the ww_mutex.
 *
- * Will not remove reserved buffers from the lru lists.
- * Otherwise identical to ttm_bo_reserve.
+ * Locks a buffer object for validation. (Or prevents other processes from
+ * locking it for validation), while taking a number of measures to prevent
+ * deadlocks.
 *
 * Returns:
 * -EDEADLK: The reservation may cause a deadlock.
 * Release all buffer reservations, wait for @bo to become unreserved and
- * try again. (only if use_sequence == 1).
+ * try again.
 * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
 * a signal. Release all buffer reservations and return to user-space.
 * -EBUSY: The function needed to sleep, but @no_wait was true
 * -EALREADY: Bo already reserved using @ticket. This error code will only
 * be returned if @use_ticket is set to true.
 */
-static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo,
-				   bool interruptible, bool no_wait,
-				   struct ww_acquire_ctx *ticket)
+static inline int ttm_bo_reserve(struct ttm_buffer_object *bo,
+				 bool interruptible, bool no_wait,
+				 struct ww_acquire_ctx *ticket)
 {
 	int ret = 0;

@@ -641,59 +507,6 @@ static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo,
 	return ret;
 }

-/**
- * ttm_bo_reserve:
- *
- * @bo: A pointer to a struct ttm_buffer_object.
- * @interruptible: Sleep interruptible if waiting.
- * @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
- * @ticket: ticket used to acquire the ww_mutex.
- *
- * Locks a buffer object for validation. (Or prevents other processes from
- * locking it for validation) and removes it from lru lists, while taking
- * a number of measures to prevent deadlocks.
- *
- * Deadlocks may occur when two processes try to reserve multiple buffers in
- * different order, either by will or as a result of a buffer being evicted
- * to make room for a buffer already reserved. (Buffers are reserved before
- * they are evicted). The following algorithm prevents such deadlocks from
- * occurring:
- * Processes attempting to reserve multiple buffers other than for eviction,
- * (typically execbuf), should first obtain a unique 32-bit
- * validation sequence number,
- * and call this function with @use_ticket == 1 and @ticket->stamp == the unique
- * sequence number. If upon call of this function, the buffer object is already
- * reserved, the validation sequence is checked against the validation
- * sequence of the process currently reserving the buffer,
- * and if the current validation sequence is greater than that of the process
- * holding the reservation, the function returns -EDEADLK. Otherwise it sleeps
- * waiting for the buffer to become unreserved, after which it retries
- * reserving.
- * The caller should, when receiving an -EDEADLK error
- * release all its buffer reservations, wait for @bo to become unreserved, and
- * then rerun the validation with the same validation sequence. This procedure
- * will always guarantee that the process with the lowest validation sequence
- * will eventually succeed, preventing both deadlocks and starvation.
- *
- * Returns:
- * -EDEADLK: The reservation may cause a deadlock.
- * Release all buffer reservations, wait for @bo to become unreserved and
- * try again. (only if use_sequence == 1).
- * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
- * a signal. Release all buffer reservations and return to user-space.
- * -EBUSY: The function needed to sleep, but @no_wait was true
- * -EALREADY: Bo already reserved using @ticket. This error code will only
- * be returned if @use_ticket is set to true.
- */
-static inline int ttm_bo_reserve(struct ttm_buffer_object *bo,
-				 bool interruptible, bool no_wait,
-				 struct ww_acquire_ctx *ticket)
-{
-	WARN_ON(!kref_read(&bo->kref));
-
-	return __ttm_bo_reserve(bo, interruptible, no_wait, ticket);
-}
-
 /**
 * ttm_bo_reserve_slowpath:
 * @bo: A pointer to a struct ttm_buffer_object.
@@ -708,20 +521,45 @@ static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
 					  bool interruptible,
 					  struct ww_acquire_ctx *ticket)
 {
-	int ret = 0;
+	if (interruptible) {
+		int ret = dma_resv_lock_slow_interruptible(bo->base.resv,
+							   ticket);
+		if (ret == -EINTR)
+			ret = -ERESTARTSYS;
+		return ret;
+	}
+	dma_resv_lock_slow(bo->base.resv, ticket);
+	return 0;
+}

-	WARN_ON(!kref_read(&bo->kref));
+static inline void ttm_bo_move_to_lru_tail_unlocked(struct ttm_buffer_object *bo)
+{
+	spin_lock(&ttm_bo_glob.lru_lock);
+	ttm_bo_move_to_lru_tail(bo, NULL);
+	spin_unlock(&ttm_bo_glob.lru_lock);
+}

-	if (interruptible)
-		ret = dma_resv_lock_slow_interruptible(bo->base.resv,
-								 ticket);
-	else
-		dma_resv_lock_slow(bo->base.resv, ticket);
+static inline void ttm_bo_assign_mem(struct ttm_buffer_object *bo,
+				     struct ttm_resource *new_mem)
+{
+	bo->mem = *new_mem;
+	new_mem->mm_node = NULL;
+}

-	if (ret == -EINTR)
-		ret = -ERESTARTSYS;
+/**
+ * ttm_bo_move_null = assign memory for a buffer object.
+ * @bo: The bo to assign the memory to
+ * @new_mem: The memory to be assigned.
+ *
+ * Assign the memory from new_mem to the memory of the buffer object bo.
+ */
+static inline void ttm_bo_move_null(struct ttm_buffer_object *bo,
+				    struct ttm_resource *new_mem)
+{
+	struct ttm_resource *old_mem = &bo->mem;

-	return ret;
+	WARN_ON(old_mem->mm_node != NULL);
+	ttm_bo_assign_mem(bo, new_mem);
 }

 /**
@@ -733,9 +571,7 @@ static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
 */
 static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo)
 {
-	spin_lock(&ttm_bo_glob.lru_lock);
-	ttm_bo_move_to_lru_tail(bo, NULL);
-	spin_unlock(&ttm_bo_glob.lru_lock);
+	ttm_bo_move_to_lru_tail_unlocked(bo);
 	dma_resv_unlock(bo->base.resv);
 }

@@ -744,16 +580,16 @@ static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo)
 */

 int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
-		       struct ttm_mem_reg *mem);
+		       struct ttm_resource *mem);
 void ttm_mem_io_free(struct ttm_bo_device *bdev,
-		     struct ttm_mem_reg *mem);
+		     struct ttm_resource *mem);
 /**
 * ttm_bo_move_ttm
 *
 * @bo: A pointer to a struct ttm_buffer_object.
 * @interruptible: Sleep interruptible if waiting.
 * @no_wait_gpu: Return immediately if the GPU is busy.
- * @new_mem: struct ttm_mem_reg indicating where to move.
+ * @new_mem: struct ttm_resource indicating where to move.
 *
 * Optimized move function for a buffer object with both old and
 * new placement backed by a TTM. The function will, if successful,
@@ -767,7 +603,7 @@ void ttm_mem_io_free(struct ttm_bo_device *bdev,

 int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
 		    struct ttm_operation_ctx *ctx,
-		    struct ttm_mem_reg *new_mem);
+		    struct ttm_resource *new_mem);

 /**
 * ttm_bo_move_memcpy
@@ -775,7 +611,7 @@ int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
 * @bo: A pointer to a struct ttm_buffer_object.
 * @interruptible: Sleep interruptible if waiting.
 * @no_wait_gpu: Return immediately if the GPU is busy.
- * @new_mem: struct ttm_mem_reg indicating where to move.
+ * @new_mem: struct ttm_resource indicating where to move.
 *
 * Fallback move function for a mappable buffer object in mappable memory.
 * The function will, if successful,
@@ -789,7 +625,7 @@ int ttm_bo_move_ttm(struct ttm_buffer_object *bo,

 int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
 		       struct ttm_operation_ctx *ctx,
-		       struct ttm_mem_reg *new_mem);
+		       struct ttm_resource *new_mem);

 /**
 * ttm_bo_free_old_node
@@ -806,7 +642,8 @@ void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
 * @bo: A pointer to a struct ttm_buffer_object.
 * @fence: A fence object that signals when moving is complete.
 * @evict: This is an evict move. Don't return until the buffer is idle.
- * @new_mem: struct ttm_mem_reg indicating where to move.
+ * @pipeline: evictions are to be pipelined.
+ * @new_mem: struct ttm_resource indicating where to move.
 *
 * Accelerated move function to be called when an accelerated move
 * has been scheduled. The function will create a new temporary buffer object
@@ -817,22 +654,8 @@ void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
 */
 int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
 			      struct dma_fence *fence, bool evict,
-			      struct ttm_mem_reg *new_mem);
-
-/**
- * ttm_bo_pipeline_move.
- *
- * @bo: A pointer to a struct ttm_buffer_object.
- * @fence: A fence object that signals when moving is complete.
- * @evict: This is an evict move. Don't return until the buffer is idle.
- * @new_mem: struct ttm_mem_reg indicating where to move.
- *
- * Function for pipelining accelerated moves. Either free the memory
- * immediately or hang it on a temporary buffer object.
- */
-int ttm_bo_pipeline_move(struct ttm_buffer_object *bo,
-			 struct dma_fence *fence, bool evict,
-			 struct ttm_mem_reg *new_mem);
+			      bool pipeline,
+			      struct ttm_resource *new_mem);

 /**
 * ttm_bo_pipeline_gutting.
@@ -854,6 +677,49 @@ int ttm_bo_pipeline_gutting(struct ttm_buffer_object *bo);
 */
 pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp);

-extern const struct ttm_mem_type_manager_func ttm_bo_manager_func;
+/**
+ * ttm_bo_tt_bind
+ *
+ * Bind the object tt to a memory resource.
+ */
+int ttm_bo_tt_bind(struct ttm_buffer_object *bo, struct ttm_resource *mem);
+
+/**
+ * ttm_bo_tt_bind
+ *
+ * Unbind the object tt from a memory resource.
+ */
+void ttm_bo_tt_unbind(struct ttm_buffer_object *bo);
+
+/**
+ * ttm_bo_tt_destroy.
+ */
+void ttm_bo_tt_destroy(struct ttm_buffer_object *bo);
+
+/**
+ * ttm_range_man_init
+ *
+ * @bdev: ttm device
+ * @type: memory manager type
+ * @use_tt: if the memory manager uses tt
+ * @p_size: size of area to be managed in pages.
+ *
+ * Initialise a generic range manager for the selected memory type.
+ * The range manager is installed for this device in the type slot.
+ */
+int ttm_range_man_init(struct ttm_bo_device *bdev,
+		       unsigned type, bool use_tt,
+		       unsigned long p_size);
+
+/**
+ * ttm_range_man_fini
+ *
+ * @bdev: ttm device
+ * @type: memory manager type
+ *
+ * Remove the generic range manager from a slot and tear it down.
+ */
+int ttm_range_man_fini(struct ttm_bo_device *bdev,
+		       unsigned type);

 #endif
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -58,9 +58,8 @@ struct ttm_validate_buffer {
 * Undoes all buffer validation reservations for bos pointed to by
 * the list entries.
 */
-
-extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
-				       struct list_head *list);
+void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
+				struct list_head *list);

 /**
 * function ttm_eu_reserve_buffers
@@ -96,10 +95,9 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
 * ttm_eu_fence_buffer_objects() when command submission is complete or
 * has failed.
 */
-
-extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
-				  struct list_head *list, bool intr,
-				  struct list_head *dups);
+int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
+			   struct list_head *list, bool intr,
+			   struct list_head *dups);

 /**
 * function ttm_eu_fence_buffer_objects.
@@ -113,9 +111,8 @@ extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
 * It also unreserves all buffers, putting them on lru lists.
 *
 */
-
-extern void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
-					struct list_head *list,
-					struct dma_fence *fence);
+void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
+				 struct list_head *list,
+				 struct dma_fence *fence);

 #endif
--- a/include/drm/ttm/ttm_memory.h
+++ b/include/drm/ttm/ttm_memory.h
@@ -79,19 +79,17 @@ extern struct ttm_mem_global {
 #endif
 } ttm_mem_glob;

-extern int ttm_mem_global_init(struct ttm_mem_global *glob);
-extern void ttm_mem_global_release(struct ttm_mem_global *glob);
-extern int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory,
+int ttm_mem_global_init(struct ttm_mem_global *glob);
+void ttm_mem_global_release(struct ttm_mem_global *glob);
+int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory,
+			 struct ttm_operation_ctx *ctx);
+void ttm_mem_global_free(struct ttm_mem_global *glob, uint64_t amount);
+int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
+			      struct page *page, uint64_t size,
+			      struct ttm_operation_ctx *ctx);
+void ttm_mem_global_free_page(struct ttm_mem_global *glob,
+			      struct page *page, uint64_t size);
+size_t ttm_round_pot(size_t size);
+bool ttm_check_under_lowerlimit(struct ttm_mem_global *glob, uint64_t num_pages,
 				struct ttm_operation_ctx *ctx);
-extern void ttm_mem_global_free(struct ttm_mem_global *glob,
-				uint64_t amount);
-extern int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
-				     struct page *page, uint64_t size,
-				     struct ttm_operation_ctx *ctx);
-extern void ttm_mem_global_free_page(struct ttm_mem_global *glob,
-				     struct page *page, uint64_t size);
-extern size_t ttm_round_pot(size_t size);
-extern uint64_t ttm_get_kernel_zone_memory_size(struct ttm_mem_global *glob);
-extern bool ttm_check_under_lowerlimit(struct ttm_mem_global *glob,
-			uint64_t num_pages, struct ttm_operation_ctx *ctx);
 #endif
--- a/include/drm/ttm/ttm_placement.h
+++ b/include/drm/ttm/ttm_placement.h
@@ -42,12 +42,6 @@
 #define TTM_PL_VRAM             2
 #define TTM_PL_PRIV             3

-#define TTM_PL_FLAG_SYSTEM      (1 << TTM_PL_SYSTEM)
-#define TTM_PL_FLAG_TT          (1 << TTM_PL_TT)
-#define TTM_PL_FLAG_VRAM        (1 << TTM_PL_VRAM)
-#define TTM_PL_FLAG_PRIV        (1 << TTM_PL_PRIV)
-#define TTM_PL_MASK_MEM         0x0000FFFF
-
 /*
 * Other flags that affects data placement.
 * TTM_PL_FLAG_CACHED indicates cache-coherent mappings
@@ -71,8 +65,6 @@
 				 TTM_PL_FLAG_UNCACHED | \
 				 TTM_PL_FLAG_WC)

-#define TTM_PL_MASK_MEMTYPE     (TTM_PL_MASK_MEM | TTM_PL_MASK_CACHING)
-
 /**
 * struct ttm_place
 *
@@ -85,6 +77,7 @@
 struct ttm_place {
 	unsigned	fpfn;
 	unsigned	lpfn;
+	uint32_t	mem_type;
 	uint32_t	flags;
 };

--- a/include/drm/ttm/ttm_resource.h
+++ b/include/drm/ttm/ttm_resource.h
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2020 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: Christian König
+ */
+
+#ifndef _TTM_RESOURCE_H_
+#define _TTM_RESOURCE_H_
+
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/dma-fence.h>
+#include <drm/drm_print.h>
+
+#define TTM_MAX_BO_PRIORITY	4U
+
+struct ttm_bo_device;
+struct ttm_resource_manager;
+struct ttm_resource;
+struct ttm_place;
+struct ttm_buffer_object;
+
+struct ttm_resource_manager_func {
+	/**
+	 * struct ttm_resource_manager_func member alloc
+	 *
+	 * @man: Pointer to a memory type manager.
+	 * @bo: Pointer to the buffer object we're allocating space for.
+	 * @placement: Placement details.
+	 * @flags: Additional placement flags.
+	 * @mem: Pointer to a struct ttm_resource to be filled in.
+	 *
+	 * This function should allocate space in the memory type managed
+	 * by @man. Placement details if
+	 * applicable are given by @placement. If successful,
+	 * @mem::mm_node should be set to a non-null value, and
+	 * @mem::start should be set to a value identifying the beginning
+	 * of the range allocated, and the function should return zero.
+	 * If the memory region accommodate the buffer object, @mem::mm_node
+	 * should be set to NULL, and the function should return 0.
+	 * If a system error occurred, preventing the request to be fulfilled,
+	 * the function should return a negative error code.
+	 *
+	 * Note that @mem::mm_node will only be dereferenced by
+	 * struct ttm_resource_manager functions and optionally by the driver,
+	 * which has knowledge of the underlying type.
+	 *
+	 * This function may not be called from within atomic context, so
+	 * an implementation can and must use either a mutex or a spinlock to
+	 * protect any data structures managing the space.
+	 */
+	int  (*alloc)(struct ttm_resource_manager *man,
+		      struct ttm_buffer_object *bo,
+		      const struct ttm_place *place,
+		      struct ttm_resource *mem);
+
+	/**
+	 * struct ttm_resource_manager_func member free
+	 *
+	 * @man: Pointer to a memory type manager.
+	 * @mem: Pointer to a struct ttm_resource to be filled in.
+	 *
+	 * This function frees memory type resources previously allocated
+	 * and that are identified by @mem::mm_node and @mem::start. May not
+	 * be called from within atomic context.
+	 */
+	void (*free)(struct ttm_resource_manager *man,
+		     struct ttm_resource *mem);
+
+	/**
+	 * struct ttm_resource_manager_func member debug
+	 *
+	 * @man: Pointer to a memory type manager.
+	 * @printer: Prefix to be used in printout to identify the caller.
+	 *
+	 * This function is called to print out the state of the memory
+	 * type manager to aid debugging of out-of-memory conditions.
+	 * It may not be called from within atomic context.
+	 */
+	void (*debug)(struct ttm_resource_manager *man,
+		      struct drm_printer *printer);
+};
+
+/**
+ * struct ttm_resource_manager
+ *
+ * @use_type: The memory type is enabled.
+ * @flags: TTM_MEMTYPE_XX flags identifying the traits of the memory
+ * managed by this memory type.
+ * @gpu_offset: If used, the GPU offset of the first managed page of
+ * fixed memory or the first managed location in an aperture.
+ * @size: Size of the managed region.
+ * @func: structure pointer implementing the range manager. See above
+ * @move_lock: lock for move fence
+ * static information. bdev::driver::io_mem_free is never used.
+ * @lru: The lru list for this memory type.
+ * @move: The fence of the last pipelined move operation.
+ *
+ * This structure is used to identify and manage memory types for a device.
+ */
+struct ttm_resource_manager {
+	/*
+	 * No protection. Constant from start.
+	 */
+	bool use_type;
+	bool use_tt;
+	uint64_t size;
+	const struct ttm_resource_manager_func *func;
+	spinlock_t move_lock;
+
+	/*
+	 * Protected by the global->lru_lock.
+	 */
+
+	struct list_head lru[TTM_MAX_BO_PRIORITY];
+
+	/*
+	 * Protected by @move_lock.
+	 */
+	struct dma_fence *move;
+};
+
+/**
+ * struct ttm_bus_placement
+ *
+ * @addr:		mapped virtual address
+ * @offset:		physical addr
+ * @is_iomem:		is this io memory ?
+ *
+ * Structure indicating the bus placement of an object.
+ */
+struct ttm_bus_placement {
+	void		*addr;
+	phys_addr_t	offset;
+	bool		is_iomem;
+};
+
+/**
+ * struct ttm_resource
+ *
+ * @mm_node: Memory manager node.
+ * @size: Requested size of memory region.
+ * @num_pages: Actual size of memory region in pages.
+ * @page_alignment: Page alignment.
+ * @placement: Placement flags.
+ * @bus: Placement on io bus accessible to the CPU
+ *
+ * Structure indicating the placement and space resources used by a
+ * buffer object.
+ */
+struct ttm_resource {
+	void *mm_node;
+	unsigned long start;
+	unsigned long size;
+	unsigned long num_pages;
+	uint32_t page_alignment;
+	uint32_t mem_type;
+	uint32_t placement;
+	struct ttm_bus_placement bus;
+};
+
+/**
+ * ttm_resource_manager_set_used
+ *
+ * @man: A memory manager object.
+ * @used: usage state to set.
+ *
+ * Set the manager in use flag. If disabled the manager is no longer
+ * used for object placement.
+ */
+static inline void
+ttm_resource_manager_set_used(struct ttm_resource_manager *man, bool used)
+{
+	man->use_type = used;
+}
+
+/**
+ * ttm_resource_manager_used
+ *
+ * @man: Manager to get used state for
+ *
+ * Get the in use flag for a manager.
+ * Returns:
+ * true is used, false if not.
+ */
+static inline bool ttm_resource_manager_used(struct ttm_resource_manager *man)
+{
+	return man->use_type;
+}
+
+/**
+ * ttm_resource_manager_cleanup
+ *
+ * @man: A memory manager object.
+ *
+ * Cleanup the move fences from the memory manager object.
+ */
+static inline void
+ttm_resource_manager_cleanup(struct ttm_resource_manager *man)
+{
+	dma_fence_put(man->move);
+	man->move = NULL;
+}
+
+int ttm_resource_alloc(struct ttm_buffer_object *bo,
+		       const struct ttm_place *place,
+		       struct ttm_resource *res);
+void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource *res);
+
+void ttm_resource_manager_init(struct ttm_resource_manager *man,
+			       unsigned long p_size);
+
+int ttm_resource_manager_force_list_clean(struct ttm_bo_device *bdev,
+					  struct ttm_resource_manager *man);
+
+void ttm_resource_manager_debug(struct ttm_resource_manager *man,
+				struct drm_printer *p);
+
+#endif
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -30,7 +30,7 @@
 #include <linux/types.h>

 struct ttm_tt;
-struct ttm_mem_reg;
+struct ttm_resource;
 struct ttm_buffer_object;
 struct ttm_operation_ctx;

@@ -42,54 +42,17 @@ struct ttm_operation_ctx;
 #define TTM_PAGE_FLAG_SG              (1 << 8)
 #define TTM_PAGE_FLAG_NO_RETRY	      (1 << 9)

+#define TTM_PAGE_FLAG_PRIV_POPULATED  (1 << 31)
+
 enum ttm_caching_state {
 	tt_uncached,
 	tt_wc,
 	tt_cached
 };

-struct ttm_backend_func {
-	/**
-	 * struct ttm_backend_func member bind
-	 *
-	 * @ttm: Pointer to a struct ttm_tt.
-	 * @bo_mem: Pointer to a struct ttm_mem_reg describing the
-	 * memory type and location for binding.
-	 *
-	 * Bind the backend pages into the aperture in the location
-	 * indicated by @bo_mem. This function should be able to handle
-	 * differences between aperture and system page sizes.
-	 */
-	int (*bind) (struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem);
-
-	/**
-	 * struct ttm_backend_func member unbind
-	 *
-	 * @ttm: Pointer to a struct ttm_tt.
-	 *
-	 * Unbind previously bound backend pages. This function should be
-	 * able to handle differences between aperture and system page sizes.
-	 */
-	void (*unbind) (struct ttm_tt *ttm);
-
-	/**
-	 * struct ttm_backend_func member destroy
-	 *
-	 * @ttm: Pointer to a struct ttm_tt.
-	 *
-	 * Destroy the backend. This will be call back from ttm_tt_destroy so
-	 * don't call ttm_tt_destroy from the callback or infinite loop.
-	 */
-	void (*destroy) (struct ttm_tt *ttm);
-};
-
 /**
 * struct ttm_tt
 *
- * @bdev: Pointer to a struct ttm_bo_device.
- * @func: Pointer to a struct ttm_backend_func that describes
- * the backend methods.
- * pointer.
 * @pages: Array of pages backing the data.
 * @num_pages: Number of pages in the page array.
 * @bdev: Pointer to the current struct ttm_bo_device.
@@ -103,21 +66,29 @@ struct ttm_backend_func {
 * memory.
 */
 struct ttm_tt {
-	struct ttm_bo_device *bdev;
-	struct ttm_backend_func *func;
 	struct page **pages;
 	uint32_t page_flags;
 	unsigned long num_pages;
 	struct sg_table *sg; /* for SG objects via dma-buf */
 	struct file *swap_storage;
 	enum ttm_caching_state caching_state;
-	enum {
-		tt_bound,
-		tt_unbound,
-		tt_unpopulated,
-	} state;
 };

+static inline bool ttm_tt_is_populated(struct ttm_tt *tt)
+{
+	return tt->page_flags & TTM_PAGE_FLAG_PRIV_POPULATED;
+}
+
+static inline void ttm_tt_set_unpopulated(struct ttm_tt *tt)
+{
+	tt->page_flags &= ~TTM_PAGE_FLAG_PRIV_POPULATED;
+}
+
+static inline void ttm_tt_set_populated(struct ttm_tt *tt)
+{
+	tt->page_flags |= TTM_PAGE_FLAG_PRIV_POPULATED;
+}
+
 /**
 * struct ttm_dma_tt
 *
@@ -175,17 +146,6 @@ int ttm_sg_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_buffer_object *bo,
 void ttm_tt_fini(struct ttm_tt *ttm);
 void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma);

-/**
- * ttm_ttm_bind:
- *
- * @ttm: The struct ttm_tt containing backing pages.
- * @bo_mem: The struct ttm_mem_reg identifying the binding location.
- *
- * Bind the pages of @ttm to an aperture location identified by @bo_mem
- */
-int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem,
-		struct ttm_operation_ctx *ctx);
-
 /**
 * ttm_ttm_destroy:
 *
@@ -193,16 +153,14 @@ int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem,
 *
 * Unbind, unpopulate and destroy common struct ttm_tt.
 */
-void ttm_tt_destroy(struct ttm_tt *ttm);
+void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm);

 /**
- * ttm_ttm_unbind:
+ * ttm_tt_destroy_common:
 *
- * @ttm: The struct ttm_tt.
- *
- * Unbind a struct ttm_tt.
+ * Called from driver to destroy common path.
 */
-void ttm_tt_unbind(struct ttm_tt *ttm);
+void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm);

 /**
 * ttm_tt_swapin:
@@ -227,7 +185,7 @@ int ttm_tt_swapin(struct ttm_tt *ttm);
 * and cache flushes and potential page splitting / combining.
 */
 int ttm_tt_set_placement_caching(struct ttm_tt *ttm, uint32_t placement);
-int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage);
+int ttm_tt_swapout(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct file *persistent_swap_storage);

 /**
 * ttm_tt_populate - allocate pages for a ttm
@@ -236,7 +194,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage);
 *
 * Calls the driver method to allocate pages for a ttm
 */
-int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
+int ttm_tt_populate(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);

 /**
 * ttm_tt_unpopulate - free pages from a ttm
@@ -245,7 +203,7 @@ int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
 *
 * Calls the driver method to free all pages from a ttm
 */
-void ttm_tt_unpopulate(struct ttm_tt *ttm);
+void ttm_tt_unpopulate(struct ttm_bo_device *bdev, struct ttm_tt *ttm);

 #if IS_ENABLED(CONFIG_AGP)
 #include <linux/agp_backend.h>
@@ -265,8 +223,10 @@ void ttm_tt_unpopulate(struct ttm_tt *ttm);
 struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
 				 struct agp_bridge_data *bridge,
 				 uint32_t page_flags);
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm);
+int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_resource *bo_mem);
+void ttm_agp_unbind(struct ttm_tt *ttm);
+void ttm_agp_destroy(struct ttm_tt *ttm);
+bool ttm_agp_is_bound(struct ttm_tt *ttm);
 #endif

 #endif