Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This contains two major new drivers:

   - imagination is a first driver for Imagination Technologies devices,
     it only covers very specific devices, but there is hope to grow it

   - xe is a reboot of the i915 GPU (shares display) side using a more
     upstream focused development model, and trying to maximise code
     sharing. It's not enabled for any hw by default, and will hopefully
     get switched on for Intel's Lunarlake.

  This also drops a bunch of the old UMS ioctls. It's been dead long
  enough.

  amdgpu has a bunch of new color management code that is being used in
  the Steam Deck.

  amdgpu also has a new ACPI WBRF interaction to help avoid radio
  interference.

  Otherwise it's the usual lots of changes in lots of places.

  Detailed summary:

  new drivers:
   - imagination - new driver for Imagination Technologies GPU
   - xe - new driver for Intel GPUs using core drm concepts

  core:
   - add CLOSE_FB ioctl
   - remove old UMS ioctls
   - increase max objects to accomodate AMD color mgmt

  encoder:
   - create per-encoder debugfs directory

  edid:
   - split out drm_eld
   - SAD helpers
   - drop edid_firmware module parameter

  format-helper:
   - cache format conversion buffers

  sched:
   - move from kthread to workqueue
   - rename some internals
   - implement dynamic job-flow control

  gpuvm:
   - provide more features to handle GEM objects

  client:
   - don't acquire module reference

  displayport:
   - add mst path property documentation

  fdinfo:
   - alignment fix

  dma-buf:
   - add fence timestamp helper
   - add fence deadline support

  bridge:
   - transparent aux-bridge for DP/USB-C
   - lt8912b: add suspend/resume support and power regulator support

  panel:
   - edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
   - chromebook panel support
   - elida-kd35t133: rework pm
   - powkiddy RK2023 panel
   - himax-hx8394: drop prepare/unprepare and shutdown logic
   - BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
   - Evervision VGG644804, SDC ATNA45AF01
   - nv3052c: register docs, init sequence fixes, fascontek FS035VG158
   - st7701: Anbernic RG-ARC support
   - r63353 panel controller
   - Ilitek ILI9805 panel controller
   - AUO G156HAN04.0

  simplefb:
   - support memory regions
   - support power domains

  amdgpu:
   - add new 64-bit sequence number infrastructure
   - add AMD specific color management
   - ACPI WBRF support for RF interference handling
   - GPUVM updates
   - RAS updates
   - DCN 3.5 updates
   - Rework PCIe link speed handling
   - Document GPU reset types
   - DMUB fixes
   - eDP fixes
   - NBIO 7.9/7.11 updates
   - SubVP updates
   - XGMI PCIe state dumping for aqua vanjaram
   - GFX11 golden register updates
   - enable tunnelling on high pri compute

  amdkfd:
   - Migrate TLB flushing logic to amdgpu
   - Trap handler fixes
   - Fix restore workers handling on suspend/resume
   - Fix possible memory leak in pqm_uninit()
   - support import/export of dma-bufs using GEM handles

  radeon:
   - fix possible overflows in command buffer checking
   - check for errors in ring_lock

  i915:
   - reorg display code for reuse in xe driver
   - fdinfo memory stats printing
   - DP MST bandwidth mgmt improvements
   - DP panel replay enabling
   - MTL C20 phy state verification
   - MTL DP DSC fractional bpp support
   - Audio fastset support
   - use dma_fence interfaces instead of i915_sw_fence
   - Separate gem and display code
   - AUX register macro refactoring
   - Separate display module/device parameters
   - Move display capabilities debugfs under display
   - Makefile cleanups
   - Register cleanups
   - Move display lock inits under display/
   - VLV/CHV DPIO PHY register and interface refactoring
   - DSI VBT sequence refactoring
   - C10/C20 PHY PLL hardware readout
   - DPLL code cleanups
   - Cleanup PXP plane protection checks
   - Improve display debug msgs
   - PSR selective fetch fixes/improvements
   - DP MST fixes
   - Xe2LPD FBC restrictions removed
   - DGFX uses direct VBT pin mapping
   - more MTL WAs
   - fix MTL eDP bug
   - eliminate use of kmap_atomic

  habanalabs:
   - sysfs entry to identify a device minor id with debugfs path
   - sysfs entry to expose device module id
   - add signed device info retrieval through INFO ioctl
   - add Gaudi2C device support
   - pcie reset prepare/done hooks

  msm:
   - Add support for SDM670, SM8650
   - Handle the CFG interconnect to fix the obscure hangs / timeouts
   - Kconfig fix for QMP dependency
   - use managed allocators
   - DPU: SDM670, SM8650 support
   - DPU: Enable SmartDMA on SM8350 and SM8450
   - DP: enable runtime PM support
   - GPU: add metadata UAPI
   - GPU: move devcoredumps to GPU device
   - GPU: convert to drm_exec

  ivpu:
   - update FW API
   - new debugfs file
   - a new NOP job submission test mode
   - improve suspend/resume
   - PM improvements
   - MMU PT optimizations
   - firmware profile frequency support
   - support for uncached buffers
   - switch to gem shmem helpers
   - replace kthread with threaded irqs

  rockchip:
   - rk3066_hdmi: convert to atomic
   - vop2: support nv20 and nv30
   - rk3588 support

  mediatek:
   - use devm_platform_ioremap_resource
   - stop using iommu_present
   - MT8188 VDOSYS1 display support

  panfrost:
   - PM improvements
   - improve interrupt handling as poweroff

  qaic:
   - allow to run with single MSI
   - support host/device time sync
   - switch to persistent DRM devices

  exynos:
   - fix potential error pointer dereference
   - fix wrong error checking
   - add missing call to drm_atomic_helper_shutdown

  omapdrm:
   - dma-fence lockdep annotation fix

  tidss:
   - dma-fence lockdep annotation fix
   - support for AM62A7

  v3d:
   - BCM2712 - rpi5 support
   - fdinfo + gputop support
   - uapi for CPU job handling

  virtio-gpu:
   - add context debug name"

* tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm: (2340 commits)
  drm/amd/display: Allow z8/z10 from driver
  drm/amd/display: fix bandwidth validation failure on DCN 2.1
  drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
  drm/amd/display: Move fixpt_from_s3132 to amdgpu_dm
  drm/amd/display: Fix recent checkpatch errors in amdgpu_dm
  Revert "drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole"
  drm/amd/display: avoid stringop-overflow warnings for dp_decide_lane_settings()
  drm/amd/display: Fix power_helpers.c codestyle
  drm/amd/display: Fix hdcp_log.h codestyle
  drm/amd/display: Fix hdcp2_execution.c codestyle
  drm/amd/display: Fix hdcp_psp.h codestyle
  drm/amd/display: Fix freesync.c codestyle
  drm/amd/display: Fix hdcp_psp.c codestyle
  drm/amd/display: Fix hdcp1_execution.c codestyle
  drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init
  drm/amdkfd: Fix iterator used outside loop in 'kfd_add_peer_prop()'
  drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()'
  drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c
  drm/amdgpu: Fix '*fw' from request_firmware() not released in 'amdgpu_ucode_request()'
  drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
  ...

1 files changed, 170 insertions, 0 deletions

diff --git a/drivers/gpu/drm/imagination/pvr_gem.h b/drivers/gpu/drm/imagination/pvr_gem.h
new file mode 100644
index 000000000000..e0e5ea509a2e
--- /dev/null
+++ b/drivers/gpu/drm/imagination/pvr_gem.h
@@ -0,0 +1,170 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#ifndef PVR_GEM_H
+#define PVR_GEM_H
+
+#include "pvr_rogue_heap_config.h"
+#include "pvr_rogue_meta.h"
+
+#include <uapi/drm/pvr_drm.h>
+
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_shmem_helper.h>
+#include <drm/drm_mm.h>
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/const.h>
+#include <linux/compiler_attributes.h>
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/refcount.h>
+#include <linux/scatterlist.h>
+#include <linux/sizes.h>
+#include <linux/types.h>
+
+/* Forward declaration from "pvr_device.h". */
+struct pvr_device;
+struct pvr_file;
+
+/**
+ * DOC: Flags for DRM_IOCTL_PVR_CREATE_BO (kernel-only)
+ *
+ * Kernel-only values allowed in &pvr_gem_object->flags. The majority of options
+ * for this field are specified in the UAPI header "pvr_drm.h" with a
+ * DRM_PVR_BO_ prefix. To distinguish these internal options (which must exist
+ * in ranges marked as "reserved" in the UAPI header), we drop the DRM prefix.
+ * The public options should be used directly, DRM prefix and all.
+ *
+ * To avoid potentially confusing gaps in the UAPI options, these kernel-only
+ * options are specified "in reverse", starting at bit 63.
+ *
+ * We use "reserved" to refer to bits defined here and not exposed in the UAPI.
+ * Bits not defined anywhere are "undefined".
+ *
+ * CPU mapping options
+ *    :PVR_BO_CPU_CACHED: By default, all GEM objects are mapped write-combined on the CPU. Set this
+ *       flag to override this behaviour and map the object cached.
+ *
+ * Firmware options
+ *    :PVR_BO_FW_NO_CLEAR_ON_RESET: By default, all FW objects are cleared and reinitialised on hard
+ *       reset. Set this flag to override this behaviour and preserve buffer contents on reset.
+ */
+#define PVR_BO_CPU_CACHED BIT_ULL(63)
+
+#define PVR_BO_FW_NO_CLEAR_ON_RESET BIT_ULL(62)
+
+#define PVR_BO_KERNEL_FLAGS_MASK (PVR_BO_CPU_CACHED | PVR_BO_FW_NO_CLEAR_ON_RESET)
+
+/* Bits 61..3 are undefined. */
+/* Bits 2..0 are defined in the UAPI. */
+
+/* Other utilities. */
+#define PVR_BO_UNDEFINED_MASK ~(PVR_BO_KERNEL_FLAGS_MASK | DRM_PVR_BO_FLAGS_MASK)
+
+/*
+ * All firmware-mapped memory uses (mostly) the same flags. Specifically,
+ * firmware-mapped memory should be:
+ *  * Read/write on the device,
+ *  * Read/write on the CPU, and
+ *  * Write-combined on the CPU.
+ *
+ * The only variation is in caching on the device.
+ */
+#define PVR_BO_FW_FLAGS_DEVICE_CACHED (ULL(0))
+#define PVR_BO_FW_FLAGS_DEVICE_UNCACHED DRM_PVR_BO_BYPASS_DEVICE_CACHE
+
+/**
+ * struct pvr_gem_object - powervr-specific wrapper for &struct drm_gem_object
+ */
+struct pvr_gem_object {
+	/**
+	 * @base: The underlying &struct drm_gem_shmem_object.
+	 *
+	 * Do not access this member directly, instead call
+	 * shem_gem_from_pvr_gem().
+	 */
+	struct drm_gem_shmem_object base;
+
+	/**
+	 * @flags: Options set at creation-time. Some of these options apply to
+	 * the creation operation itself (which are stored here for reference)
+	 * with the remainder used for mapping options to both the device and
+	 * CPU. These are used every time this object is mapped, but may be
+	 * changed after creation.
+	 *
+	 * Must be a combination of DRM_PVR_BO_* and/or PVR_BO_* flags.
+	 *
+	 * .. note::
+	 *
+	 *    This member is declared const to indicate that none of these
+	 *    options may change or be changed throughout the object's
+	 *    lifetime.
+	 */
+	u64 flags;
+
+};
+
+static_assert(offsetof(struct pvr_gem_object, base) == 0,
+	      "offsetof(struct pvr_gem_object, base) not zero");
+
+#define shmem_gem_from_pvr_gem(pvr_obj) (&(pvr_obj)->base)
+
+#define shmem_gem_to_pvr_gem(shmem_obj) container_of_const(shmem_obj, struct pvr_gem_object, base)
+
+#define gem_from_pvr_gem(pvr_obj) (&(pvr_obj)->base.base)
+
+#define gem_to_pvr_gem(gem_obj) container_of_const(gem_obj, struct pvr_gem_object, base.base)
+
+/* Functions defined in pvr_gem.c */
+
+struct drm_gem_object *pvr_gem_create_object(struct drm_device *drm_dev, size_t size);
+
+struct pvr_gem_object *pvr_gem_object_create(struct pvr_device *pvr_dev,
+					     size_t size, u64 flags);
+
+int pvr_gem_object_into_handle(struct pvr_gem_object *pvr_obj,
+			       struct pvr_file *pvr_file, u32 *handle);
+struct pvr_gem_object *pvr_gem_object_from_handle(struct pvr_file *pvr_file,
+						  u32 handle);
+
+static __always_inline struct sg_table *
+pvr_gem_object_get_pages_sgt(struct pvr_gem_object *pvr_obj)
+{
+	return drm_gem_shmem_get_pages_sgt(shmem_gem_from_pvr_gem(pvr_obj));
+}
+
+void *pvr_gem_object_vmap(struct pvr_gem_object *pvr_obj);
+void pvr_gem_object_vunmap(struct pvr_gem_object *pvr_obj);
+
+int pvr_gem_get_dma_addr(struct pvr_gem_object *pvr_obj, u32 offset,
+			 dma_addr_t *dma_addr_out);
+
+/**
+ * pvr_gem_object_get() - Acquire reference on pvr_gem_object
+ * @pvr_obj: Pointer to object to acquire reference on.
+ */
+static __always_inline void
+pvr_gem_object_get(struct pvr_gem_object *pvr_obj)
+{
+	drm_gem_object_get(gem_from_pvr_gem(pvr_obj));
+}
+
+/**
+ * pvr_gem_object_put() - Release reference on pvr_gem_object
+ * @pvr_obj: Pointer to object to release reference on.
+ */
+static __always_inline void
+pvr_gem_object_put(struct pvr_gem_object *pvr_obj)
+{
+	drm_gem_object_put(gem_from_pvr_gem(pvr_obj));
+}
+
+static __always_inline size_t
+pvr_gem_object_size(struct pvr_gem_object *pvr_obj)
+{
+	return gem_from_pvr_gem(pvr_obj)->size;
+}
+
+#endif /* PVR_GEM_H */