Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "This is the main pull request for the drm subsystems for 6.10.

  In drivers the main thing is a new driver for ARM Mali firmware based
  GPUs, otherwise there are a lot of changes to amdgpu/xe/i915/msm and
  scattered changes to everything else.

  In the core a bunch of headers and Kconfig was refactored, along with
  the addition of a new panic handler which is meant to provide a user
  friendly message when a panic happens and graphical display is
  enabled.

  New drivers:
   - panthor: ARM Mali/Immortalis CSF-based GPU driver

  Core:
   - add a CONFIG_DRM_WERROR option
   - make more headers self-contained
   - grab resv lock in pin/unpin
   - fix vmap resv locking
   - EDID/eDP panel matching
   - Kconfig cleanups
   - DT sound bindings
   - Add SIZE_HINTS property for cursor planes
   - Add struct drm_edid_product_id and helpers.
   - Use drm device based logging in more drm functions.
   - drop seq_file.h from a bunch of places
   - use drm_edid driver conversions

  dp:
   - DP Tunnel documentation
   - MST read sideband cap
   - Adaptive sync SDP prep work

  ttm:
   - improve placement for TTM BOs in idle/busy handling

  panic:
   - Fixes for drm-panic, and option to test it.
   - Add drm panic to simpledrm, mgag200, imx, ast

  bridge:
   - improve init ordering
   - adv7511: allow GPIO pin sharing
   - tc358775: add tc358675 support

  panel:
   - AUO B120XAN01.0
   - Samsung s6e3fa7
   - BOE NT116WHM-N44
   - CMN N116BCA-EA1,
   - CrystalClear CMT430B19N00
   - Startek KD050HDFIA020-C020A
   - powertip PH128800T006-ZHC01
   - Innolux G121X1-L03
   - LG sw43408
   - Khadas TS050 V2
   - EDO RM69380 OLED
   - CSOT MNB601LS1-1

  amdgpu:
   - HDCP/ODM/RAS fixes
   - Devcoredump improvements
   - Expose VCN activity via sysfs
   - SMY 13.0.x updates
   - Enable fast updates on DCN 3.1.4
   - Add dclk and vclk reporting on additional devices
   - Add ACA RAS infrastructure
   - Implement TLB flush fence
   - EEPROM handling fixes
   - SMUIO 14.0.2 support
   - SMU 14.0.1 Updates
   - SMU 14.0.2 support
   - Sync page table freeing with TLB flushes
   - DML2 refactor
   - DC debug improvements
   - DCN 3.5.x Updates
   - GPU reset fixes
   - HDP fix for second GFX pipe on GC 10.x
   - Enable secondary GFX pipe on GC 10.3
   - Refactor and clean up BACO/BOCO/BAMACO handling
   - Remove invalid TTM resource start check
   - UAF fix in VA IOCTL
   - GPUVM page fault redirection to secondary IH rings for IH 6.x
   - Initial support for mapping kernel queues via MES
   - Fix VRAM memory accounting

  amdkfd:
   - MQD handling cleanup
   - Preemption handling fixes for XCDs
   - TLB flush fix for GC 9.4.2
   - Properly clean up workqueue during module unload
   - Fix memory leak process create failure
   - Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace
   - Fix eviction fence handling
   - Fix leak in GPU memory allocation failure case
   - DMABuf import handling fix
   - Enable SQ watchpoint for gfx10

  i915:
   - Adding new DG2 PCI ID
   - add context hints for GT frequency
   - enable only one CCS for compute workloads
   - new workarounds
   - Fix UAF on destroy against retire race and remove two earlier partial fixes
   - Limit the reserved VM space to only the platforms that need it
   - Fix gt reset with GuC submission is disable
   - Add and use gt_to_guc() wrapper

  i915/xe display:
   - Lunar Lake display enabling, including cdclk and other refactors
   - BIOS/VBT/opregion related refactor
   - Digital port related refactor/clean-up
   - Fix 2s boot time regression on DP panel replay init
   - Remove duplication on audio enable/disable on SDVO and g4x+ DP
   - Disable AuxCCS framebuffers if built for Xe
   - Make crtc disable more atomic
   - Increase DP idle pattern wait timeout to 2ms
   - Start using container_of_const() for some extra const safety
   - Fix Jasper Lake boot freeze
   - Enable MST mode for 128b/132b single-stream sideband
   - Enable Adaptive Sync SDP Support for DP
   - Fix MTL supported DP rates - removal of UHBR13.5
   - PLL refactoring
   - Limit eDP MSO pipe only for display version 20
   - More display refactor towards independence from i915 dev_priv
   - Convert i915/xe fbdev to DRM client
   - More initial work to make display code more independent from i915

  xe:
   - improved error capture
   - clean up some uAPI leftovers
   - devcoredump update
   - Add BMG mocs table
   - Handle GSCCS ER interrupt
   - Implement xe2- and GuC workarounds
   - struct xe_device cleanup
   - Hwmon updates
   - Add LRC parsing for more GPU instruction
   - Increase VM_BIND number of per-ioctl Ops
   - drm/xe: Add XE_BO_GGTT_INVALIDATE flag
   - Initial development for SR-IOV support
   - Add new PCI IDs to DG2 platform
   - Move userptr over to start using hmm_range_fault

  msm:
   - Switched to generating register header files during build process
     instead of shipping pre-generated headers
   - Merged DPU and MDP4 format databases.
   - DP:
     - Stop using compat string to distinguish DP and eDP cases
     - Added support for X Elite platform (X1E80100)
     - Reworked DP aux/audio support
     - Added SM6350 DP to the bindings
   - GPU:
     - a7xx perfcntr reg fixes
     - MAINTAINERS updates
     - a750 devcoredump support

  radeon:
   - Silence UBSAN warnings related to flexible arrays

  nouveau:
   - move some uAPI objects to uapi headers

  omapdrm:
   - console fix

  ast:
   - add i2c polling

  qaic:
   - add debugfs entries

  exynos:
   - fix platform_driver .owner
   - drop cleanup code

  mediatek:
   - Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe()
   - Add GAMMA 12-bit LUT support for MT8188
   - Rename mtk_drm_* to mtk_*
   - Drop driver owner initialization
   - Correct calculation formula of PHY Timing"

* tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel: (1477 commits)
  drm/xe/ads: Use flexible-array
  drm/xe: Use ordered WQ for G2H handler
  drm/msm/gen_header: allow skipping the validation
  drm/msm/a6xx: Cleanup indexed regs const'ness
  drm/msm: Add devcoredump support for a750
  drm/msm: Adjust a7xx GBIF debugbus dumping
  drm/msm: Update a6xx registers XML
  drm/msm: Fix imported a750 snapshot header for upstream
  drm/msm: Import a750 snapshot registers from kgsl
  MAINTAINERS: Add Konrad Dybcio as a reviewer for the Adreno driver
  MAINTAINERS: Add a separate entry for Qualcomm Adreno GPU drivers
  drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails
  drm/msm/adreno: fix CP cycles stat retrieval on a7xx
  drm/msm/a7xx: allow writing to CP_BV counter selection registers
  drm: zynqmp_dpsub: Always register bridge
  Revert "drm/bridge: ti-sn65dsi83: Fix enable error path"
  drm/fb_dma: Add checks in drm_fb_dma_get_scanout_buffer()
  drm/fbdev-generic: Do not set physical framebuffer address
  drm/panthor: Fix the FW reset logic
  drm/panthor: Make sure we handle 'unknown group state' case properly
  ...

1 files changed, 257 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c
new file mode 100644
index 000000000000..40b8f881fe04
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c
@@ -0,0 +1,257 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023-2024 Intel Corporation
+ */
+
+#include "abi/guc_actions_sriov_abi.h"
+
+#include "xe_device.h"
+#include "xe_gt.h"
+#include "xe_gt_sriov_pf_control.h"
+#include "xe_gt_sriov_printk.h"
+#include "xe_guc_ct.h"
+#include "xe_sriov.h"
+
+static const char *control_cmd_to_string(u32 cmd)
+{
+	switch (cmd) {
+	case GUC_PF_TRIGGER_VF_PAUSE:
+		return "PAUSE";
+	case GUC_PF_TRIGGER_VF_RESUME:
+		return "RESUME";
+	case GUC_PF_TRIGGER_VF_STOP:
+		return "STOP";
+	case GUC_PF_TRIGGER_VF_FLR_START:
+		return "FLR_START";
+	case GUC_PF_TRIGGER_VF_FLR_FINISH:
+		return "FLR_FINISH";
+	default:
+		return "<unknown>";
+	}
+}
+
+static int guc_action_vf_control_cmd(struct xe_guc *guc, u32 vfid, u32 cmd)
+{
+	u32 request[PF2GUC_VF_CONTROL_REQUEST_MSG_LEN] = {
+		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
+		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_PF2GUC_VF_CONTROL),
+		FIELD_PREP(PF2GUC_VF_CONTROL_REQUEST_MSG_1_VFID, vfid),
+		FIELD_PREP(PF2GUC_VF_CONTROL_REQUEST_MSG_2_COMMAND, cmd),
+	};
+	int ret;
+
+	/* XXX those two commands are now sent from the G2H handler */
+	if (cmd == GUC_PF_TRIGGER_VF_FLR_START || cmd == GUC_PF_TRIGGER_VF_FLR_FINISH)
+		return xe_guc_ct_send_g2h_handler(&guc->ct, request, ARRAY_SIZE(request));
+
+	ret = xe_guc_ct_send_block(&guc->ct, request, ARRAY_SIZE(request));
+	return ret > 0 ? -EPROTO : ret;
+}
+
+static int pf_send_vf_control_cmd(struct xe_gt *gt, unsigned int vfid, u32 cmd)
+{
+	int err;
+
+	xe_gt_assert(gt, vfid != PFID);
+
+	err = guc_action_vf_control_cmd(&gt->uc.guc, vfid, cmd);
+	if (unlikely(err))
+		xe_gt_sriov_err(gt, "VF%u control command %s failed (%pe)\n",
+				vfid, control_cmd_to_string(cmd), ERR_PTR(err));
+	return err;
+}
+
+static int pf_send_vf_pause(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_control_cmd(gt, vfid, GUC_PF_TRIGGER_VF_PAUSE);
+}
+
+static int pf_send_vf_resume(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_control_cmd(gt, vfid, GUC_PF_TRIGGER_VF_RESUME);
+}
+
+static int pf_send_vf_stop(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_control_cmd(gt, vfid, GUC_PF_TRIGGER_VF_STOP);
+}
+
+static int pf_send_vf_flr_start(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_control_cmd(gt, vfid, GUC_PF_TRIGGER_VF_FLR_START);
+}
+
+static int pf_send_vf_flr_finish(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_control_cmd(gt, vfid, GUC_PF_TRIGGER_VF_FLR_FINISH);
+}
+
+/**
+ * xe_gt_sriov_pf_control_pause_vf - Pause a VF.
+ * @gt: the &xe_gt
+ * @vfid: the VF identifier
+ *
+ * This function is for PF only.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int xe_gt_sriov_pf_control_pause_vf(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_pause(gt, vfid);
+}
+
+/**
+ * xe_gt_sriov_pf_control_resume_vf - Resume a VF.
+ * @gt: the &xe_gt
+ * @vfid: the VF identifier
+ *
+ * This function is for PF only.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int xe_gt_sriov_pf_control_resume_vf(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_resume(gt, vfid);
+}
+
+/**
+ * xe_gt_sriov_pf_control_stop_vf - Stop a VF.
+ * @gt: the &xe_gt
+ * @vfid: the VF identifier
+ *
+ * This function is for PF only.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int xe_gt_sriov_pf_control_stop_vf(struct xe_gt *gt, unsigned int vfid)
+{
+	return pf_send_vf_stop(gt, vfid);
+}
+
+/**
+ * DOC: The VF FLR Flow with GuC
+ *
+ *          PF                        GUC             PCI
+ * ========================================================
+ *          |                          |               |
+ * (1)      |                         [ ] <----- FLR --|
+ *          |                         [ ]              :
+ * (2)     [ ] <-------- NOTIFY FLR --[ ]
+ *         [ ]                         |
+ * (3)     [ ]                         |
+ *         [ ]                         |
+ *         [ ]-- START FLR ---------> [ ]
+ *          |                         [ ]
+ * (4)      |                         [ ]
+ *          |                         [ ]
+ *         [ ] <--------- FLR DONE -- [ ]
+ *         [ ]                         |
+ * (5)     [ ]                         |
+ *         [ ]                         |
+ *         [ ]-- FINISH FLR --------> [ ]
+ *          |                          |
+ *
+ * Step 1: PCI HW generates interrupt to the GuC about VF FLR
+ * Step 2: GuC FW sends G2H notification to the PF about VF FLR
+ * Step 2a: on some platforms G2H is only received from root GuC
+ * Step 3: PF sends H2G request to the GuC to start VF FLR sequence
+ * Step 3a: on some platforms PF must send H2G to all other GuCs
+ * Step 4: GuC FW performs VF FLR cleanups and notifies the PF when done
+ * Step 5: PF performs VF FLR cleanups and notifies the GuC FW when finished
+ */
+
+static bool needs_dispatch_flr(struct xe_device *xe)
+{
+	return xe->info.platform == XE_PVC;
+}
+
+static void pf_handle_vf_flr(struct xe_gt *gt, u32 vfid)
+{
+	struct xe_device *xe = gt_to_xe(gt);
+	struct xe_gt *gtit;
+	unsigned int gtid;
+
+	xe_gt_sriov_info(gt, "VF%u FLR\n", vfid);
+
+	if (needs_dispatch_flr(xe)) {
+		for_each_gt(gtit, xe, gtid)
+			pf_send_vf_flr_start(gtit, vfid);
+	} else {
+		pf_send_vf_flr_start(gt, vfid);
+	}
+}
+
+static void pf_handle_vf_flr_done(struct xe_gt *gt, u32 vfid)
+{
+	pf_send_vf_flr_finish(gt, vfid);
+}
+
+static int pf_handle_vf_event(struct xe_gt *gt, u32 vfid, u32 eventid)
+{
+	switch (eventid) {
+	case GUC_PF_NOTIFY_VF_FLR:
+		pf_handle_vf_flr(gt, vfid);
+		break;
+	case GUC_PF_NOTIFY_VF_FLR_DONE:
+		pf_handle_vf_flr_done(gt, vfid);
+		break;
+	case GUC_PF_NOTIFY_VF_PAUSE_DONE:
+		break;
+	case GUC_PF_NOTIFY_VF_FIXUP_DONE:
+		break;
+	default:
+		return -ENOPKG;
+	}
+	return 0;
+}
+
+static int pf_handle_pf_event(struct xe_gt *gt, u32 eventid)
+{
+	switch (eventid) {
+	case GUC_PF_NOTIFY_VF_ENABLE:
+		xe_gt_sriov_dbg_verbose(gt, "VFs %s/%s\n",
+					str_enabled_disabled(true),
+					str_enabled_disabled(false));
+		break;
+	default:
+		return -ENOPKG;
+	}
+	return 0;
+}
+
+/**
+ * xe_gt_sriov_pf_control_process_guc2pf - Handle VF state notification from GuC.
+ * @gt: the &xe_gt
+ * @msg: the G2H message
+ * @len: the length of the G2H message
+ *
+ * This function is for PF only.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int xe_gt_sriov_pf_control_process_guc2pf(struct xe_gt *gt, const u32 *msg, u32 len)
+{
+	u32 vfid;
+	u32 eventid;
+
+	xe_gt_assert(gt, len);
+	xe_gt_assert(gt, FIELD_GET(GUC_HXG_MSG_0_ORIGIN, msg[0]) == GUC_HXG_ORIGIN_GUC);
+	xe_gt_assert(gt, FIELD_GET(GUC_HXG_MSG_0_TYPE, msg[0]) == GUC_HXG_TYPE_EVENT);
+	xe_gt_assert(gt, FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, msg[0]) ==
+		     GUC_ACTION_GUC2PF_VF_STATE_NOTIFY);
+
+	if (unlikely(!xe_device_is_sriov_pf(gt_to_xe(gt))))
+		return -EPROTO;
+
+	if (unlikely(FIELD_GET(GUC2PF_VF_STATE_NOTIFY_EVENT_MSG_0_MBZ, msg[0])))
+		return -EPFNOSUPPORT;
+
+	if (unlikely(len != GUC2PF_VF_STATE_NOTIFY_EVENT_MSG_LEN))
+		return -EPROTO;
+
+	vfid = FIELD_GET(GUC2PF_VF_STATE_NOTIFY_EVENT_MSG_1_VFID, msg[1]);
+	eventid = FIELD_GET(GUC2PF_VF_STATE_NOTIFY_EVENT_MSG_2_EVENT, msg[2]);
+
+	return vfid ? pf_handle_vf_event(gt, vfid, eventid) : pf_handle_pf_event(gt, eventid);
+}