Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 598 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
new file mode 100644
index 000000000..83df4cd5e
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
@@ -0,0 +1,598 @@
+// SPDX-License-Identifier: MIT
+
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include <linux/seq_file.h>
+#include <linux/string_helpers.h>
+
+#include "i915_drv.h"
+#include "i915_reg.h"
+#include "intel_gt.h"
+#include "intel_gt_clock_utils.h"
+#include "intel_gt_debugfs.h"
+#include "intel_gt_pm.h"
+#include "intel_gt_pm_debugfs.h"
+#include "intel_gt_regs.h"
+#include "intel_llc.h"
+#include "intel_mchbar_regs.h"
+#include "intel_pcode.h"
+#include "intel_rc6.h"
+#include "intel_rps.h"
+#include "intel_runtime_pm.h"
+#include "intel_uncore.h"
+#include "vlv_sideband.h"
+
+void intel_gt_pm_debugfs_forcewake_user_open(struct intel_gt *gt)
+{
+	atomic_inc(&gt->user_wakeref);
+	intel_gt_pm_get(gt);
+	if (GRAPHICS_VER(gt->i915) >= 6)
+		intel_uncore_forcewake_user_get(gt->uncore);
+}
+
+void intel_gt_pm_debugfs_forcewake_user_release(struct intel_gt *gt)
+{
+	if (GRAPHICS_VER(gt->i915) >= 6)
+		intel_uncore_forcewake_user_put(gt->uncore);
+	intel_gt_pm_put(gt);
+	atomic_dec(&gt->user_wakeref);
+}
+
+static int forcewake_user_open(struct inode *inode, struct file *file)
+{
+	struct intel_gt *gt = inode->i_private;
+
+	intel_gt_pm_debugfs_forcewake_user_open(gt);
+
+	return 0;
+}
+
+static int forcewake_user_release(struct inode *inode, struct file *file)
+{
+	struct intel_gt *gt = inode->i_private;
+
+	intel_gt_pm_debugfs_forcewake_user_release(gt);
+
+	return 0;
+}
+
+static const struct file_operations forcewake_user_fops = {
+	.owner = THIS_MODULE,
+	.open = forcewake_user_open,
+	.release = forcewake_user_release,
+};
+
+static int fw_domains_show(struct seq_file *m, void *data)
+{
+	struct intel_gt *gt = m->private;
+	struct intel_uncore *uncore = gt->uncore;
+	struct intel_uncore_forcewake_domain *fw_domain;
+	unsigned int tmp;
+
+	seq_printf(m, "user.bypass_count = %u\n",
+		   uncore->user_forcewake_count);
+
+	for_each_fw_domain(fw_domain, uncore, tmp)
+		seq_printf(m, "%s.wake_count = %u\n",
+			   intel_uncore_forcewake_domain_to_str(fw_domain->id),
+			   READ_ONCE(fw_domain->wake_count));
+
+	return 0;
+}
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(fw_domains);
+
+static int vlv_drpc(struct seq_file *m)
+{
+	struct intel_gt *gt = m->private;
+	struct intel_uncore *uncore = gt->uncore;
+	u32 rcctl1, pw_status, mt_fwake_req;
+
+	mt_fwake_req = intel_uncore_read_fw(uncore, FORCEWAKE_MT);
+	pw_status = intel_uncore_read(uncore, VLV_GTLC_PW_STATUS);
+	rcctl1 = intel_uncore_read(uncore, GEN6_RC_CONTROL);
+
+	seq_printf(m, "RC6 Enabled: %s\n",
+		   str_yes_no(rcctl1 & (GEN7_RC_CTL_TO_MODE |
+					GEN6_RC_CTL_EI_MODE(1))));
+	seq_printf(m, "Multi-threaded Forcewake Request: 0x%x\n", mt_fwake_req);
+	seq_printf(m, "Render Power Well: %s\n",
+		   (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
+	seq_printf(m, "Media Power Well: %s\n",
+		   (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
+
+	intel_rc6_print_residency(m, "Render RC6 residency since boot:", INTEL_RC6_RES_RC6);
+	intel_rc6_print_residency(m, "Media RC6 residency since boot:", INTEL_RC6_RES_VLV_MEDIA);
+
+	return fw_domains_show(m, NULL);
+}
+
+static int gen6_drpc(struct seq_file *m)
+{
+	struct intel_gt *gt = m->private;
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+	u32 gt_core_status, mt_fwake_req, rcctl1, rc6vids = 0;
+	u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
+
+	mt_fwake_req = intel_uncore_read_fw(uncore, FORCEWAKE_MT);
+	gt_core_status = intel_uncore_read_fw(uncore, GEN6_GT_CORE_STATUS);
+
+	rcctl1 = intel_uncore_read(uncore, GEN6_RC_CONTROL);
+	if (GRAPHICS_VER(i915) >= 9) {
+		gen9_powergate_enable =
+			intel_uncore_read(uncore, GEN9_PG_ENABLE);
+		gen9_powergate_status =
+			intel_uncore_read(uncore, GEN9_PWRGT_DOMAIN_STATUS);
+	}
+
+	if (GRAPHICS_VER(i915) <= 7)
+		snb_pcode_read(gt->uncore, GEN6_PCODE_READ_RC6VIDS, &rc6vids, NULL);
+
+	seq_printf(m, "RC1e Enabled: %s\n",
+		   str_yes_no(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
+	seq_printf(m, "RC6 Enabled: %s\n",
+		   str_yes_no(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
+	if (GRAPHICS_VER(i915) >= 9) {
+		seq_printf(m, "Render Well Gating Enabled: %s\n",
+			   str_yes_no(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
+		seq_printf(m, "Media Well Gating Enabled: %s\n",
+			   str_yes_no(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
+	}
+	seq_printf(m, "Deep RC6 Enabled: %s\n",
+		   str_yes_no(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
+	seq_printf(m, "Deepest RC6 Enabled: %s\n",
+		   str_yes_no(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
+	seq_puts(m, "Current RC state: ");
+	switch (gt_core_status & GEN6_RCn_MASK) {
+	case GEN6_RC0:
+		if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
+			seq_puts(m, "Core Power Down\n");
+		else
+			seq_puts(m, "on\n");
+		break;
+	case GEN6_RC3:
+		seq_puts(m, "RC3\n");
+		break;
+	case GEN6_RC6:
+		seq_puts(m, "RC6\n");
+		break;
+	case GEN6_RC7:
+		seq_puts(m, "RC7\n");
+		break;
+	default:
+		seq_puts(m, "Unknown\n");
+		break;
+	}
+
+	seq_printf(m, "Core Power Down: %s\n",
+		   str_yes_no(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
+	seq_printf(m, "Multi-threaded Forcewake Request: 0x%x\n", mt_fwake_req);
+	if (GRAPHICS_VER(i915) >= 9) {
+		seq_printf(m, "Render Power Well: %s\n",
+			   (gen9_powergate_status &
+			    GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
+		seq_printf(m, "Media Power Well: %s\n",
+			   (gen9_powergate_status &
+			    GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
+	}
+
+	/* Not exactly sure what this is */
+	intel_rc6_print_residency(m, "RC6 \"Locked to RPn\" residency since boot:",
+				  INTEL_RC6_RES_RC6_LOCKED);
+	intel_rc6_print_residency(m, "RC6 residency since boot:", INTEL_RC6_RES_RC6);
+	intel_rc6_print_residency(m, "RC6+ residency since boot:", INTEL_RC6_RES_RC6p);
+	intel_rc6_print_residency(m, "RC6++ residency since boot:", INTEL_RC6_RES_RC6pp);
+
+	if (GRAPHICS_VER(i915) <= 7) {
+		seq_printf(m, "RC6   voltage: %dmV\n",
+			   GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
+		seq_printf(m, "RC6+  voltage: %dmV\n",
+			   GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
+		seq_printf(m, "RC6++ voltage: %dmV\n",
+			   GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
+	}
+
+	return fw_domains_show(m, NULL);
+}
+
+static int ilk_drpc(struct seq_file *m)
+{
+	struct intel_gt *gt = m->private;
+	struct intel_uncore *uncore = gt->uncore;
+	u32 rgvmodectl, rstdbyctl;
+	u16 crstandvid;
+
+	rgvmodectl = intel_uncore_read(uncore, MEMMODECTL);
+	rstdbyctl = intel_uncore_read(uncore, RSTDBYCTL);
+	crstandvid = intel_uncore_read16(uncore, CRSTANDVID);
+
+	seq_printf(m, "HD boost: %s\n",
+		   str_yes_no(rgvmodectl & MEMMODE_BOOST_EN));
+	seq_printf(m, "Boost freq: %d\n",
+		   (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
+		   MEMMODE_BOOST_FREQ_SHIFT);
+	seq_printf(m, "HW control enabled: %s\n",
+		   str_yes_no(rgvmodectl & MEMMODE_HWIDLE_EN));
+	seq_printf(m, "SW control enabled: %s\n",
+		   str_yes_no(rgvmodectl & MEMMODE_SWMODE_EN));
+	seq_printf(m, "Gated voltage change: %s\n",
+		   str_yes_no(rgvmodectl & MEMMODE_RCLK_GATE));
+	seq_printf(m, "Starting frequency: P%d\n",
+		   (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
+	seq_printf(m, "Max P-state: P%d\n",
+		   (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
+	seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
+	seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
+	seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
+	seq_printf(m, "Render standby enabled: %s\n",
+		   str_yes_no(!(rstdbyctl & RCX_SW_EXIT)));
+	seq_puts(m, "Current RS state: ");
+	switch (rstdbyctl & RSX_STATUS_MASK) {
+	case RSX_STATUS_ON:
+		seq_puts(m, "on\n");
+		break;
+	case RSX_STATUS_RC1:
+		seq_puts(m, "RC1\n");
+		break;
+	case RSX_STATUS_RC1E:
+		seq_puts(m, "RC1E\n");
+		break;
+	case RSX_STATUS_RS1:
+		seq_puts(m, "RS1\n");
+		break;
+	case RSX_STATUS_RS2:
+		seq_puts(m, "RS2 (RC6)\n");
+		break;
+	case RSX_STATUS_RS3:
+		seq_puts(m, "RC3 (RC6+)\n");
+		break;
+	default:
+		seq_puts(m, "unknown\n");
+		break;
+	}
+
+	return 0;
+}
+
+static int mtl_drpc(struct seq_file *m)
+{
+	struct intel_gt *gt = m->private;
+	struct intel_uncore *uncore = gt->uncore;
+	u32 gt_core_status, rcctl1, mt_fwake_req;
+	u32 mtl_powergate_enable = 0, mtl_powergate_status = 0;
+
+	mt_fwake_req = intel_uncore_read_fw(uncore, FORCEWAKE_MT);
+	gt_core_status = intel_uncore_read(uncore, MTL_MIRROR_TARGET_WP1);
+
+	rcctl1 = intel_uncore_read(uncore, GEN6_RC_CONTROL);
+	mtl_powergate_enable = intel_uncore_read(uncore, GEN9_PG_ENABLE);
+	mtl_powergate_status = intel_uncore_read(uncore,
+						 GEN9_PWRGT_DOMAIN_STATUS);
+
+	seq_printf(m, "RC6 Enabled: %s\n",
+		   str_yes_no(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
+	if (gt->type == GT_MEDIA) {
+		seq_printf(m, "Media Well Gating Enabled: %s\n",
+			   str_yes_no(mtl_powergate_enable & GEN9_MEDIA_PG_ENABLE));
+	} else {
+		seq_printf(m, "Render Well Gating Enabled: %s\n",
+			   str_yes_no(mtl_powergate_enable & GEN9_RENDER_PG_ENABLE));
+	}
+
+	seq_puts(m, "Current RC state: ");
+	switch (REG_FIELD_GET(MTL_CC_MASK, gt_core_status)) {
+	case MTL_CC0:
+		seq_puts(m, "RC0\n");
+		break;
+	case MTL_CC6:
+		seq_puts(m, "RC6\n");
+		break;
+	default:
+		MISSING_CASE(REG_FIELD_GET(MTL_CC_MASK, gt_core_status));
+		seq_puts(m, "Unknown\n");
+		break;
+	}
+
+	seq_printf(m, "Multi-threaded Forcewake Request: 0x%x\n", mt_fwake_req);
+	if (gt->type == GT_MEDIA)
+		seq_printf(m, "Media Power Well: %s\n",
+			   (mtl_powergate_status &
+			    GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
+	else
+		seq_printf(m, "Render Power Well: %s\n",
+			   (mtl_powergate_status &
+			    GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
+
+	/* Works for both render and media gt's */
+	intel_rc6_print_residency(m, "RC6 residency since boot:", INTEL_RC6_RES_RC6);
+
+	return fw_domains_show(m, NULL);
+}
+
+static int drpc_show(struct seq_file *m, void *unused)
+{
+	struct intel_gt *gt = m->private;
+	struct drm_i915_private *i915 = gt->i915;
+	intel_wakeref_t wakeref;
+	int err = -ENODEV;
+
+	with_intel_runtime_pm(gt->uncore->rpm, wakeref) {
+		if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
+			err = mtl_drpc(m);
+		else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
+			err = vlv_drpc(m);
+		else if (GRAPHICS_VER(i915) >= 6)
+			err = gen6_drpc(m);
+		else
+			err = ilk_drpc(m);
+	}
+
+	return err;
+}
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(drpc);
+
+void intel_gt_pm_frequency_dump(struct intel_gt *gt, struct drm_printer *p)
+{
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+	struct intel_rps *rps = &gt->rps;
+	intel_wakeref_t wakeref;
+
+	wakeref = intel_runtime_pm_get(uncore->rpm);
+
+	if (GRAPHICS_VER(i915) == 5) {
+		u16 rgvswctl = intel_uncore_read16(uncore, MEMSWCTL);
+		u16 rgvstat = intel_uncore_read16(uncore, MEMSTAT_ILK);
+
+		drm_printf(p, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
+		drm_printf(p, "Requested VID: %d\n", rgvswctl & 0x3f);
+		drm_printf(p, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
+			   MEMSTAT_VID_SHIFT);
+		drm_printf(p, "Current P-state: %d\n",
+			   REG_FIELD_GET(MEMSTAT_PSTATE_MASK, rgvstat));
+	} else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) {
+		u32 rpmodectl, freq_sts;
+
+		rpmodectl = intel_uncore_read(uncore, GEN6_RP_CONTROL);
+		drm_printf(p, "Video Turbo Mode: %s\n",
+			   str_yes_no(rpmodectl & GEN6_RP_MEDIA_TURBO));
+		drm_printf(p, "HW control enabled: %s\n",
+			   str_yes_no(rpmodectl & GEN6_RP_ENABLE));
+		drm_printf(p, "SW control enabled: %s\n",
+			   str_yes_no((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == GEN6_RP_MEDIA_SW_MODE));
+
+		vlv_punit_get(i915);
+		freq_sts = vlv_punit_read(i915, PUNIT_REG_GPU_FREQ_STS);
+		vlv_punit_put(i915);
+
+		drm_printf(p, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
+		drm_printf(p, "DDR freq: %d MHz\n", i915->mem_freq);
+
+		drm_printf(p, "actual GPU freq: %d MHz\n",
+			   intel_gpu_freq(rps, (freq_sts >> 8) & 0xff));
+
+		drm_printf(p, "current GPU freq: %d MHz\n",
+			   intel_gpu_freq(rps, rps->cur_freq));
+
+		drm_printf(p, "max GPU freq: %d MHz\n",
+			   intel_gpu_freq(rps, rps->max_freq));
+
+		drm_printf(p, "min GPU freq: %d MHz\n",
+			   intel_gpu_freq(rps, rps->min_freq));
+
+		drm_printf(p, "idle GPU freq: %d MHz\n",
+			   intel_gpu_freq(rps, rps->idle_freq));
+
+		drm_printf(p, "efficient (RPe) frequency: %d MHz\n",
+			   intel_gpu_freq(rps, rps->efficient_freq));
+	} else if (GRAPHICS_VER(i915) >= 6) {
+		gen6_rps_frequency_dump(rps, p);
+	} else {
+		drm_puts(p, "no P-state info available\n");
+	}
+
+	drm_printf(p, "Current CD clock frequency: %d kHz\n", i915->display.cdclk.hw.cdclk);
+	drm_printf(p, "Max CD clock frequency: %d kHz\n", i915->display.cdclk.max_cdclk_freq);
+	drm_printf(p, "Max pixel clock frequency: %d kHz\n", i915->max_dotclk_freq);
+
+	intel_runtime_pm_put(uncore->rpm, wakeref);
+}
+
+static int frequency_show(struct seq_file *m, void *unused)
+{
+	struct intel_gt *gt = m->private;
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	intel_gt_pm_frequency_dump(gt, &p);
+
+	return 0;
+}
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(frequency);
+
+static int llc_show(struct seq_file *m, void *data)
+{
+	struct intel_gt *gt = m->private;
+	struct drm_i915_private *i915 = gt->i915;
+	const bool edram = GRAPHICS_VER(i915) > 8;
+	struct intel_rps *rps = &gt->rps;
+	unsigned int max_gpu_freq, min_gpu_freq;
+	intel_wakeref_t wakeref;
+	int gpu_freq, ia_freq;
+
+	seq_printf(m, "LLC: %s\n", str_yes_no(HAS_LLC(i915)));
+	seq_printf(m, "%s: %uMB\n", edram ? "eDRAM" : "eLLC",
+		   i915->edram_size_mb);
+
+	min_gpu_freq = rps->min_freq;
+	max_gpu_freq = rps->max_freq;
+	if (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11) {
+		/* Convert GT frequency to 50 HZ units */
+		min_gpu_freq /= GEN9_FREQ_SCALER;
+		max_gpu_freq /= GEN9_FREQ_SCALER;
+	}
+
+	seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
+
+	wakeref = intel_runtime_pm_get(gt->uncore->rpm);
+	for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
+		ia_freq = gpu_freq;
+		snb_pcode_read(gt->uncore, GEN6_PCODE_READ_MIN_FREQ_TABLE,
+			       &ia_freq, NULL);
+		seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
+			   intel_gpu_freq(rps,
+					  (gpu_freq *
+					   (IS_GEN9_BC(i915) ||
+					    GRAPHICS_VER(i915) >= 11 ?
+					    GEN9_FREQ_SCALER : 1))),
+			   ((ia_freq >> 0) & 0xff) * 100,
+			   ((ia_freq >> 8) & 0xff) * 100);
+	}
+	intel_runtime_pm_put(gt->uncore->rpm, wakeref);
+
+	return 0;
+}
+
+static bool llc_eval(void *data)
+{
+	struct intel_gt *gt = data;
+
+	return HAS_LLC(gt->i915);
+}
+
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(llc);
+
+static const char *rps_power_to_str(unsigned int power)
+{
+	static const char * const strings[] = {
+		[LOW_POWER] = "low power",
+		[BETWEEN] = "mixed",
+		[HIGH_POWER] = "high power",
+	};
+
+	if (power >= ARRAY_SIZE(strings) || !strings[power])
+		return "unknown";
+
+	return strings[power];
+}
+
+static int rps_boost_show(struct seq_file *m, void *data)
+{
+	struct intel_gt *gt = m->private;
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_rps *rps = &gt->rps;
+
+	seq_printf(m, "RPS enabled? %s\n",
+		   str_yes_no(intel_rps_is_enabled(rps)));
+	seq_printf(m, "RPS active? %s\n",
+		   str_yes_no(intel_rps_is_active(rps)));
+	seq_printf(m, "GPU busy? %s, %llums\n",
+		   str_yes_no(gt->awake),
+		   ktime_to_ms(intel_gt_get_awake_time(gt)));
+	seq_printf(m, "Boosts outstanding? %d\n",
+		   atomic_read(&rps->num_waiters));
+	seq_printf(m, "Interactive? %d\n", READ_ONCE(rps->power.interactive));
+	seq_printf(m, "Frequency requested %d, actual %d\n",
+		   intel_gpu_freq(rps, rps->cur_freq),
+		   intel_rps_read_actual_frequency(rps));
+	seq_printf(m, "  min hard:%d, soft:%d; max soft:%d, hard:%d\n",
+		   intel_gpu_freq(rps, rps->min_freq),
+		   intel_gpu_freq(rps, rps->min_freq_softlimit),
+		   intel_gpu_freq(rps, rps->max_freq_softlimit),
+		   intel_gpu_freq(rps, rps->max_freq));
+	seq_printf(m, "  idle:%d, efficient:%d, boost:%d\n",
+		   intel_gpu_freq(rps, rps->idle_freq),
+		   intel_gpu_freq(rps, rps->efficient_freq),
+		   intel_gpu_freq(rps, rps->boost_freq));
+
+	seq_printf(m, "Wait boosts: %d\n", READ_ONCE(rps->boosts));
+
+	if (GRAPHICS_VER(i915) >= 6 && intel_rps_is_active(rps)) {
+		struct intel_uncore *uncore = gt->uncore;
+		u32 rpup, rpupei;
+		u32 rpdown, rpdownei;
+
+		intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
+		rpup = intel_uncore_read_fw(uncore, GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
+		rpupei = intel_uncore_read_fw(uncore, GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
+		rpdown = intel_uncore_read_fw(uncore, GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
+		rpdownei = intel_uncore_read_fw(uncore, GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
+		intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
+
+		seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
+			   rps_power_to_str(rps->power.mode));
+		seq_printf(m, "  Avg. up: %d%% [above threshold? %d%%]\n",
+			   rpup && rpupei ? 100 * rpup / rpupei : 0,
+			   rps->power.up_threshold);
+		seq_printf(m, "  Avg. down: %d%% [below threshold? %d%%]\n",
+			   rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
+			   rps->power.down_threshold);
+	} else {
+		seq_puts(m, "\nRPS Autotuning inactive\n");
+	}
+
+	return 0;
+}
+
+static bool rps_eval(void *data)
+{
+	struct intel_gt *gt = data;
+
+	return HAS_RPS(gt->i915);
+}
+
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(rps_boost);
+
+static int perf_limit_reasons_get(void *data, u64 *val)
+{
+	struct intel_gt *gt = data;
+	intel_wakeref_t wakeref;
+
+	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
+		*val = intel_uncore_read(gt->uncore, intel_gt_perf_limit_reasons_reg(gt));
+
+	return 0;
+}
+
+static int perf_limit_reasons_clear(void *data, u64 val)
+{
+	struct intel_gt *gt = data;
+	intel_wakeref_t wakeref;
+
+	/*
+	 * Clear the upper 16 "log" bits, the lower 16 "status" bits are
+	 * read-only. The upper 16 "log" bits are identical to the lower 16
+	 * "status" bits except that the "log" bits remain set until cleared.
+	 */
+	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
+		intel_uncore_rmw(gt->uncore, intel_gt_perf_limit_reasons_reg(gt),
+				 GT0_PERF_LIMIT_REASONS_LOG_MASK, 0);
+
+	return 0;
+}
+
+static bool perf_limit_reasons_eval(void *data)
+{
+	struct intel_gt *gt = data;
+
+	return i915_mmio_reg_valid(intel_gt_perf_limit_reasons_reg(gt));
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(perf_limit_reasons_fops, perf_limit_reasons_get,
+			perf_limit_reasons_clear, "%llu\n");
+
+void intel_gt_pm_debugfs_register(struct intel_gt *gt, struct dentry *root)
+{
+	static const struct intel_gt_debugfs_file files[] = {
+		{ "drpc", &drpc_fops, NULL },
+		{ "frequency", &frequency_fops, NULL },
+		{ "forcewake", &fw_domains_fops, NULL },
+		{ "forcewake_user", &forcewake_user_fops, NULL},
+		{ "llc", &llc_fops, llc_eval },
+		{ "rps_boost", &rps_boost_fops, rps_eval },
+		{ "perf_limit_reasons", &perf_limit_reasons_fops, perf_limit_reasons_eval },
+	};
+
+	intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), gt);
+}