Merge tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "Highlights:

   - Intel xe enable Panthor Lake, started adding WildCat Lake

   - amdgpu has a bunch of reset improvments along with the usual IP
     updates

   - msm got VM_BIND support which is important for vulkan sparse memory

   - more drm_panic users

   - gpusvm common code to handle a bunch of core SVM work outside
     drivers.

  Detail summary:

  Changes outside drm subdirectory:
   - 'shrink_shmem_memory()' for better shmem/hibernate interaction
   - Rust support infrastructure:
      - make ETIMEDOUT available
      - add size constants up to SZ_2G
      - add DMA coherent allocation bindings
   - mtd driver for Intel GPU non-volatile storage
   - i2c designware quirk for Intel xe

  core:
   - atomic helpers: tune enable/disable sequences
   - add task info to wedge API
   - refactor EDID quirks
   - connector: move HDR sink to drm_display_info
   - fourcc: half-float and 32-bit float formats
   - mode_config: pass format info to simplify

  dma-buf:
   - heaps: Give CMA heap a stable name

  ci:
   - add device tree validation and kunit

  displayport:
   - change AUX DPCD access probe address
   - add quirk for DPCD probe
   - add panel replay definitions
   - backlight control helpers

  fbdev:
   - make CONFIG_FIRMWARE_EDID available on all arches

  fence:
   - fix UAF issues

  format-helper:
   - improve tests

  gpusvm:
   - introduce devmem only flag for allocation
   - add timeslicing support to GPU SVM

  ttm:
   - improve eviction

  sched:
   - tracing improvements
   - kunit improvements
   - memory leak fixes
   - reset handling improvements

  color mgmt:
   - add hardware gamma LUT handling helpers

  bridge:
   - add destroy hook
   - switch to reference counted drm_bridge allocations
   - tc358767: convert to devm_drm_bridge_alloc
   - improve CEC handling

  panel:
   - switch to reference counter drm_panel allocations
   - fwnode panel lookup
   - Huiling hl055fhv028c support
   - Raspberry Pi 7" 720x1280 support
   - edp: KDC KD116N3730A05, N160JCE-ELL CMN, N116BCJ-EAK
   - simple: AUO P238HAN01
   - st7701: Winstar wf40eswaa6mnn0
   - visionox: rm69299-shift
   - Renesas R61307, Renesas R69328 support
   - DJN HX83112B

  hdmi:
   - add CEC handling
   - YUV420 output support

  xe:
   - WildCat Lake support
   - Enable PanthorLake by default
   - mark BMG as SRIOV capable
   - update firmware recommendations
   - Expose media OA units
   - aux-bux support for non-volatile memory
   - MTD intel-dg driver for non-volatile memory
   - Expose fan control and voltage regulator in sysfs
   - restructure migration for multi-device
   - Restore GuC submit UAF fix
   - make GEM shrinker drm managed
   - SRIOV VF Post-migration recovery of GGTT nodes
   - W/A additions/reworks
   - Prefetch support for svm ranges
   - Don't allocate managed BO for each policy change
   - HWMON fixes for BMG
   - Create LRC BO without VM
   - PCI ID updates
   - make SLPC debugfs files optional
   - rework eviction rejection of bound external BOs
   - consolidate PAT programming logic for pre/post Xe2
   - init changes for flicker-free boot
   - Enable GuC Dynamic Inhibit Context switch

  i915:
   - drm_panic support for i915/xe
   - initial flip queue off by default for LNL/PNL
   - Wildcat Lake Display support
   - Support for DSC fractional link bpp
   - Support for simultaneous Panel Replay and Adaptive sync
   - Support for PTL+ double buffer LUT
   - initial PIPEDMC event handling
   - drm_panel_follower support
   - DPLL interface renames
   - allocate struct intel_display dynamically
   - flip queue preperation
   - abstract DRAM detection better
   - avoid GuC scheduling stalls
   - remove DG1 force probe requirement
   - fix MEI interrupt handler on RT kernels
   - use backlight control helpers for eDP
   - more shared display code refactoring

  amdgpu:
   - add userq slot to INFO ioctl
   - SR-IOV hibernation support
   - Suspend improvements
   - Backlight improvements
   - Use scaling for non-native eDP modes
   - cleaner shader updates for GC 9.x
   - Remove fence slab
   - SDMA fw checks for userq support
   - RAS updates
   - DMCUB updates
   - DP tunneling fixes
   - Display idle D3 support
   - Per queue reset improvements
   - initial smartmux support

  amdkfd:
   - enable KFD on loongarch
   - mtype fix for ext coherent system memory

  radeon:
   - CS validation additional GL extensions
   - drop console lock during suspend/resume
   - bump driver version

  msm:
   - VM BIND support
   - CI: infrastructure updates
   - UBWC single source of truth
   - decouple GPU and KMS support
   - DP: rework I/O accessors
   - DPU: SM8750 support
   - DSI: SM8750 support
   - GPU: X1-45 support and speedbin support for X1-85
   - MDSS: SM8750 support

  nova:
   - register! macro improvements
   - DMA object abstraction
   - VBIOS parser + fwsec lookup
   - sysmem flush page support
   - falcon: generic falcon boot code and HAL
   - FWSEC-FRTS: fb setup and load/execute

  ivpu:
   - Add Wildcat Lake support
   - Add turbo flag

  ast:
   - improve hardware generations implementation

  imx:
   - IMX8qxq Display Controller support

  lima:
   - Rockchip RK3528 GPU support

  nouveau:
   - fence handling cleanup

  panfrost:
   - MT8370 support
   - bo labeling
   - 64-bit register access

  qaic:
   - add RAS support

  rockchip:
   - convert inno_hdmi to a bridge

  rz-du:
   - add RZ/V2H(P) support
   - MIPI-DSI DCS support

  sitronix:
   - ST7567 support

  sun4i:
   - add H616 support

  tidss:
   - add TI AM62L support
   - AM65x OLDI bridge support

  bochs:
   - drm panic support

  vkms:
   - YUV and R* format support
   - use faux device

  vmwgfx:
   - fence improvements

  hyperv:
   - move out of simple
   - add drm_panic support"

* tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel: (1479 commits)
  drm/tidss: oldi: convert to devm_drm_bridge_alloc() API
  drm/tidss: encoder: convert to devm_drm_bridge_alloc()
  drm/amdgpu: move reset support type checks into the caller
  drm/amdgpu/sdma7: re-emit unprocessed state on ring reset
  drm/amdgpu/sdma6: re-emit unprocessed state on ring reset
  drm/amdgpu/sdma5.2: re-emit unprocessed state on ring reset
  drm/amdgpu/sdma5: re-emit unprocessed state on ring reset
  drm/amdgpu/gfx12: re-emit unprocessed state on ring reset
  drm/amdgpu/gfx11: re-emit unprocessed state on ring reset
  drm/amdgpu/gfx10: re-emit unprocessed state on ring reset
  drm/amdgpu/gfx9.4.3: re-emit unprocessed state on kcq reset
  drm/amdgpu/gfx9: re-emit unprocessed state on kcq reset
  drm/amdgpu: Add WARN_ON to the resource clear function
  drm/amd/pm: Use cached metrics data on SMUv13.0.6
  drm/amd/pm: Use cached data for min/max clocks
  gpu: nova-core: fix bounds check in PmuLookupTableEntry::new
  drm/amdgpu: Replace HQD terminology with slots naming
  drm/amdgpu: Add user queue instance count in HW IP info
  drm/amd/amdgpu: Add helper functions for isp buffers
  drm/amd/amdgpu: Initialize swnode for ISP MFD device
  ...

9 files changed, 233 insertions, 80 deletions

diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
index fee04fdb0822..b46eb8a552d7 100644
--- a/drivers/dma-buf/Kconfig
+++ b/drivers/dma-buf/Kconfig
@@ -36,7 +36,6 @@ config UDMABUF
 	depends on DMA_SHARED_BUFFER
 	depends on MEMFD_CREATE || COMPILE_TEST
 	depends on MMU
-	select VMAP_PFN
 	help
 	  A driver to let userspace turn memfd regions into dma-bufs.
 	  Qemu can use this to create host dmabufs for guest framebuffers.
diff --git a/drivers/dma-buf/dma-fence-chain.c b/drivers/dma-buf/dma-fence-chain.c
index 9663ba1bb6ac..a8a90acf4f34 100644
--- a/drivers/dma-buf/dma-fence-chain.c
+++ b/drivers/dma-buf/dma-fence-chain.c
@@ -218,7 +218,6 @@ static void dma_fence_chain_set_deadline(struct dma_fence *fence,
 }
 
 const struct dma_fence_ops dma_fence_chain_ops = {
-	.use_64bit_seqno = true,
 	.get_driver_name = dma_fence_chain_get_driver_name,
 	.get_timeline_name = dma_fence_chain_get_timeline_name,
 	.enable_signaling = dma_fence_chain_enable_signaling,
@@ -252,7 +251,7 @@ void dma_fence_chain_init(struct dma_fence_chain *chain,
 	chain->prev_seqno = 0;
 
 	/* Try to reuse the context of the previous chain node. */
-	if (prev_chain && __dma_fence_is_later(seqno, prev->seqno, prev->ops)) {
+	if (prev_chain && __dma_fence_is_later(prev, seqno, prev->seqno)) {
 		context = prev->context;
 		chain->prev_seqno = prev->seqno;
 	} else {
@@ -262,8 +261,8 @@ void dma_fence_chain_init(struct dma_fence_chain *chain,
 			seqno = max(prev->seqno, seqno);
 	}
 
-	dma_fence_init(&chain->base, &dma_fence_chain_ops,
-		       &chain->lock, context, seqno);
+	dma_fence_init64(&chain->base, &dma_fence_chain_ops, &chain->lock,
+			 context, seqno);
 
 	/*
 	 * Chaining dma_fence_chain container together is only allowed through
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index f0cdd3e99d36..3f78c56b58dc 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -511,12 +511,20 @@ dma_fence_wait_timeout(struct dma_fence *fence, bool intr, signed long timeout)
 
 	dma_fence_enable_sw_signaling(fence);
 
-	trace_dma_fence_wait_start(fence);
+	if (trace_dma_fence_wait_start_enabled()) {
+		rcu_read_lock();
+		trace_dma_fence_wait_start(fence);
+		rcu_read_unlock();
+	}
 	if (fence->ops->wait)
 		ret = fence->ops->wait(fence, intr, timeout);
 	else
 		ret = dma_fence_default_wait(fence, intr, timeout);
-	trace_dma_fence_wait_end(fence);
+	if (trace_dma_fence_wait_end_enabled()) {
+		rcu_read_lock();
+		trace_dma_fence_wait_end(fence);
+		rcu_read_unlock();
+	}
 	return ret;
 }
 EXPORT_SYMBOL(dma_fence_wait_timeout);
@@ -533,16 +541,23 @@ void dma_fence_release(struct kref *kref)
 	struct dma_fence *fence =
 		container_of(kref, struct dma_fence, refcount);
 
+	rcu_read_lock();
 	trace_dma_fence_destroy(fence);
 
-	if (WARN(!list_empty(&fence->cb_list) &&
-		 !test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags),
-		 "Fence %s:%s:%llx:%llx released with pending signals!\n",
-		 fence->ops->get_driver_name(fence),
-		 fence->ops->get_timeline_name(fence),
-		 fence->context, fence->seqno)) {
+	if (!list_empty(&fence->cb_list) &&
+	    !test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) {
+		const char __rcu *timeline;
+		const char __rcu *driver;
 		unsigned long flags;
 
+		driver = dma_fence_driver_name(fence);
+		timeline = dma_fence_timeline_name(fence);
+
+		WARN(1,
+		     "Fence %s:%s:%llx:%llx released with pending signals!\n",
+		     rcu_dereference(driver), rcu_dereference(timeline),
+		     fence->context, fence->seqno);
+
 		/*
 		 * Failed to signal before release, likely a refcounting issue.
 		 *
@@ -556,6 +571,8 @@ void dma_fence_release(struct kref *kref)
 		spin_unlock_irqrestore(fence->lock, flags);
 	}
 
+	rcu_read_unlock();
+
 	if (fence->ops->release)
 		fence->ops->release(fence);
 	else
@@ -982,13 +999,43 @@ EXPORT_SYMBOL(dma_fence_set_deadline);
  */
 void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq)
 {
+	const char __rcu *timeline;
+	const char __rcu *driver;
+
+	rcu_read_lock();
+
+	timeline = dma_fence_timeline_name(fence);
+	driver = dma_fence_driver_name(fence);
+
 	seq_printf(seq, "%s %s seq %llu %ssignalled\n",
-		   fence->ops->get_driver_name(fence),
-		   fence->ops->get_timeline_name(fence), fence->seqno,
+		   rcu_dereference(driver),
+		   rcu_dereference(timeline),
+		   fence->seqno,
 		   dma_fence_is_signaled(fence) ? "" : "un");
+
+	rcu_read_unlock();
 }
 EXPORT_SYMBOL(dma_fence_describe);
 
+static void
+__dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops,
+	         spinlock_t *lock, u64 context, u64 seqno, unsigned long flags)
+{
+	BUG_ON(!lock);
+	BUG_ON(!ops || !ops->get_driver_name || !ops->get_timeline_name);
+
+	kref_init(&fence->refcount);
+	fence->ops = ops;
+	INIT_LIST_HEAD(&fence->cb_list);
+	fence->lock = lock;
+	fence->context = context;
+	fence->seqno = seqno;
+	fence->flags = flags;
+	fence->error = 0;
+
+	trace_dma_fence_init(fence);
+}
+
 /**
  * dma_fence_init - Initialize a custom fence.
  * @fence: the fence to initialize
@@ -1008,18 +1055,94 @@ void
 dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops,
 	       spinlock_t *lock, u64 context, u64 seqno)
 {
-	BUG_ON(!lock);
-	BUG_ON(!ops || !ops->get_driver_name || !ops->get_timeline_name);
+	__dma_fence_init(fence, ops, lock, context, seqno, 0UL);
+}
+EXPORT_SYMBOL(dma_fence_init);
 
-	kref_init(&fence->refcount);
-	fence->ops = ops;
-	INIT_LIST_HEAD(&fence->cb_list);
-	fence->lock = lock;
-	fence->context = context;
-	fence->seqno = seqno;
-	fence->flags = 0UL;
-	fence->error = 0;
+/**
+ * dma_fence_init64 - Initialize a custom fence with 64-bit seqno support.
+ * @fence: the fence to initialize
+ * @ops: the dma_fence_ops for operations on this fence
+ * @lock: the irqsafe spinlock to use for locking this fence
+ * @context: the execution context this fence is run on
+ * @seqno: a linear increasing sequence number for this context
+ *
+ * Initializes an allocated fence, the caller doesn't have to keep its
+ * refcount after committing with this fence, but it will need to hold a
+ * refcount again if &dma_fence_ops.enable_signaling gets called.
+ *
+ * Context and seqno are used for easy comparison between fences, allowing
+ * to check which fence is later by simply using dma_fence_later().
+ */
+void
+dma_fence_init64(struct dma_fence *fence, const struct dma_fence_ops *ops,
+		 spinlock_t *lock, u64 context, u64 seqno)
+{
+	__dma_fence_init(fence, ops, lock, context, seqno,
+			 BIT(DMA_FENCE_FLAG_SEQNO64_BIT));
+}
+EXPORT_SYMBOL(dma_fence_init64);
 
-	trace_dma_fence_init(fence);
+/**
+ * dma_fence_driver_name - Access the driver name
+ * @fence: the fence to query
+ *
+ * Returns a driver name backing the dma-fence implementation.
+ *
+ * IMPORTANT CONSIDERATION:
+ * Dma-fence contract stipulates that access to driver provided data (data not
+ * directly embedded into the object itself), such as the &dma_fence.lock and
+ * memory potentially accessed by the &dma_fence.ops functions, is forbidden
+ * after the fence has been signalled. Drivers are allowed to free that data,
+ * and some do.
+ *
+ * To allow safe access drivers are mandated to guarantee a RCU grace period
+ * between signalling the fence and freeing said data.
+ *
+ * As such access to the driver name is only valid inside a RCU locked section.
+ * The pointer MUST be both queried and USED ONLY WITHIN a SINGLE block guarded
+ * by the &rcu_read_lock and &rcu_read_unlock pair.
+ */
+const char __rcu *dma_fence_driver_name(struct dma_fence *fence)
+{
+	RCU_LOCKDEP_WARN(!rcu_read_lock_held(),
+			 "RCU protection is required for safe access to returned string");
+
+	if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
+		return fence->ops->get_driver_name(fence);
+	else
+		return "detached-driver";
 }
-EXPORT_SYMBOL(dma_fence_init);
+EXPORT_SYMBOL(dma_fence_driver_name);
+
+/**
+ * dma_fence_timeline_name - Access the timeline name
+ * @fence: the fence to query
+ *
+ * Returns a timeline name provided by the dma-fence implementation.
+ *
+ * IMPORTANT CONSIDERATION:
+ * Dma-fence contract stipulates that access to driver provided data (data not
+ * directly embedded into the object itself), such as the &dma_fence.lock and
+ * memory potentially accessed by the &dma_fence.ops functions, is forbidden
+ * after the fence has been signalled. Drivers are allowed to free that data,
+ * and some do.
+ *
+ * To allow safe access drivers are mandated to guarantee a RCU grace period
+ * between signalling the fence and freeing said data.
+ *
+ * As such access to the driver name is only valid inside a RCU locked section.
+ * The pointer MUST be both queried and USED ONLY WITHIN a SINGLE block guarded
+ * by the &rcu_read_lock and &rcu_read_unlock pair.
+ */
+const char __rcu *dma_fence_timeline_name(struct dma_fence *fence)
+{
+	RCU_LOCKDEP_WARN(!rcu_read_lock_held(),
+			 "RCU protection is required for safe access to returned string");
+
+	if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
+		return fence->ops->get_driver_name(fence);
+	else
+		return "signaled-timeline";
+}
+EXPORT_SYMBOL(dma_fence_timeline_name);
diff --git a/drivers/dma-buf/heaps/Kconfig b/drivers/dma-buf/heaps/Kconfig
index a5eef06c4226..bb369b38b001 100644
--- a/drivers/dma-buf/heaps/Kconfig
+++ b/drivers/dma-buf/heaps/Kconfig
@@ -12,3 +12,13 @@ config DMABUF_HEAPS_CMA
 	  Choose this option to enable dma-buf CMA heap. This heap is backed
 	  by the Contiguous Memory Allocator (CMA). If your system has these
 	  regions, you should say Y here.
+
+config DMABUF_HEAPS_CMA_LEGACY
+	bool "Legacy DMA-BUF CMA Heap"
+	default y
+	depends on DMABUF_HEAPS_CMA
+	help
+	  Add a duplicate CMA-backed dma-buf heap with legacy naming derived
+	  from the CMA area's devicetree node, or "reserved" if the area is not
+	  defined in the devicetree. This uses the same underlying allocator as
+	  CONFIG_DMABUF_HEAPS_CMA.
diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c
index 9512d050563a..0df007111975 100644
--- a/drivers/dma-buf/heaps/cma_heap.c
+++ b/drivers/dma-buf/heaps/cma_heap.c
@@ -9,6 +9,9 @@
  * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
  *	Andrew F. Davis <afd@ti.com>
  */
+
+#define pr_fmt(fmt) "cma_heap: " fmt
+
 #include <linux/cma.h>
 #include <linux/dma-buf.h>
 #include <linux/dma-heap.h>
@@ -22,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 
+#define DEFAULT_CMA_NAME "default_cma_region"
 
 struct cma_heap {
 	struct dma_heap *heap;
@@ -366,17 +370,17 @@ static const struct dma_heap_ops cma_heap_ops = {
 	.allocate = cma_heap_allocate,
 };
 
-static int __init __add_cma_heap(struct cma *cma, void *data)
+static int __init __add_cma_heap(struct cma *cma, const char *name)
 {
-	struct cma_heap *cma_heap;
 	struct dma_heap_export_info exp_info;
+	struct cma_heap *cma_heap;
 
 	cma_heap = kzalloc(sizeof(*cma_heap), GFP_KERNEL);
 	if (!cma_heap)
 		return -ENOMEM;
 	cma_heap->cma = cma;
 
-	exp_info.name = cma_get_name(cma);
+	exp_info.name = name;
 	exp_info.ops = &cma_heap_ops;
 	exp_info.priv = cma_heap;
 
@@ -394,12 +398,30 @@ static int __init __add_cma_heap(struct cma *cma, void *data)
 static int __init add_default_cma_heap(void)
 {
 	struct cma *default_cma = dev_get_cma_area(NULL);
-	int ret = 0;
+	const char *legacy_cma_name;
+	int ret;
 
-	if (default_cma)
-		ret = __add_cma_heap(default_cma, NULL);
+	if (!default_cma)
+		return 0;
 
-	return ret;
+	ret = __add_cma_heap(default_cma, DEFAULT_CMA_NAME);
+	if (ret)
+		return ret;
+
+	if (IS_ENABLED(CONFIG_DMABUF_HEAPS_CMA_LEGACY)) {
+		legacy_cma_name = cma_get_name(default_cma);
+		if (!strcmp(legacy_cma_name, DEFAULT_CMA_NAME)) {
+			pr_warn("legacy name and default name are the same, skipping legacy heap\n");
+			return 0;
+		}
+
+		ret = __add_cma_heap(default_cma, legacy_cma_name);
+		if (ret)
+			pr_warn("failed to add legacy heap: %pe\n",
+				ERR_PTR(ret));
+	}
+
+	return 0;
 }
 module_init(add_default_cma_heap);
 MODULE_DESCRIPTION("DMA-BUF CMA Heap");
diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index 82b1b714300d..bbe7881f1360 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -33,7 +33,7 @@ struct system_heap_buffer {
 
 struct dma_heap_attachment {
 	struct device *dev;
-	struct sg_table *table;
+	struct sg_table table;
 	struct list_head list;
 	bool mapped;
 };
@@ -52,29 +52,22 @@ static gfp_t order_flags[] = {HIGH_ORDER_GFP, HIGH_ORDER_GFP, LOW_ORDER_GFP};
 static const unsigned int orders[] = {8, 4, 0};
 #define NUM_ORDERS ARRAY_SIZE(orders)
 
-static struct sg_table *dup_sg_table(struct sg_table *table)
+static int dup_sg_table(struct sg_table *from, struct sg_table *to)
 {
-	struct sg_table *new_table;
-	int ret, i;
 	struct scatterlist *sg, *new_sg;
+	int ret, i;
 
-	new_table = kzalloc(sizeof(*new_table), GFP_KERNEL);
-	if (!new_table)
-		return ERR_PTR(-ENOMEM);
-
-	ret = sg_alloc_table(new_table, table->orig_nents, GFP_KERNEL);
-	if (ret) {
-		kfree(new_table);
-		return ERR_PTR(-ENOMEM);
-	}
+	ret = sg_alloc_table(to, from->orig_nents, GFP_KERNEL);
+	if (ret)
+		return ret;
 
-	new_sg = new_table->sgl;
-	for_each_sgtable_sg(table, sg, i) {
+	new_sg = to->sgl;
+	for_each_sgtable_sg(from, sg, i) {
 		sg_set_page(new_sg, sg_page(sg), sg->length, sg->offset);
 		new_sg = sg_next(new_sg);
 	}
 
-	return new_table;
+	return 0;
 }
 
 static int system_heap_attach(struct dma_buf *dmabuf,
@@ -82,19 +75,18 @@ static int system_heap_attach(struct dma_buf *dmabuf,
 {
 	struct system_heap_buffer *buffer = dmabuf->priv;
 	struct dma_heap_attachment *a;
-	struct sg_table *table;
+	int ret;
 
 	a = kzalloc(sizeof(*a), GFP_KERNEL);
 	if (!a)
 		return -ENOMEM;
 
-	table = dup_sg_table(&buffer->sg_table);
-	if (IS_ERR(table)) {
+	ret = dup_sg_table(&buffer->sg_table, &a->table);
+	if (ret) {
 		kfree(a);
-		return -ENOMEM;
+		return ret;
 	}
 
-	a->table = table;
 	a->dev = attachment->dev;
 	INIT_LIST_HEAD(&a->list);
 	a->mapped = false;
@@ -118,8 +110,7 @@ static void system_heap_detach(struct dma_buf *dmabuf,
 	list_del(&a->list);
 	mutex_unlock(&buffer->lock);
 
-	sg_free_table(a->table);
-	kfree(a->table);
+	sg_free_table(&a->table);
 	kfree(a);
 }
 
@@ -127,7 +118,7 @@ static struct sg_table *system_heap_map_dma_buf(struct dma_buf_attachment *attac
 						enum dma_data_direction direction)
 {
 	struct dma_heap_attachment *a = attachment->priv;
-	struct sg_table *table = a->table;
+	struct sg_table *table = &a->table;
 	int ret;
 
 	ret = dma_map_sgtable(attachment->dev, table, direction, 0);
@@ -162,7 +153,7 @@ static int system_heap_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
 	list_for_each_entry(a, &buffer->attachments, list) {
 		if (!a->mapped)
 			continue;
-		dma_sync_sgtable_for_cpu(a->dev, a->table, direction);
+		dma_sync_sgtable_for_cpu(a->dev, &a->table, direction);
 	}
 	mutex_unlock(&buffer->lock);
 
@@ -183,7 +174,7 @@ static int system_heap_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
 	list_for_each_entry(a, &buffer->attachments, list) {
 		if (!a->mapped)
 			continue;
-		dma_sync_sgtable_for_device(a->dev, a->table, direction);
+		dma_sync_sgtable_for_device(a->dev, &a->table, direction);
 	}
 	mutex_unlock(&buffer->lock);
 
diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c
index 4f27ee93a00c..3c20f1d31cf5 100644
--- a/drivers/dma-buf/sw_sync.c
+++ b/drivers/dma-buf/sw_sync.c
@@ -170,7 +170,7 @@ static bool timeline_fence_signaled(struct dma_fence *fence)
 {
 	struct sync_timeline *parent = dma_fence_parent(fence);
 
-	return !__dma_fence_is_later(fence->seqno, parent->value, fence->ops);
+	return !__dma_fence_is_later(fence, fence->seqno, parent->value);
 }
 
 static void timeline_fence_set_deadline(struct dma_fence *fence, ktime_t deadline)
diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c
index d9b1c1b2a72b..747e377fb954 100644
--- a/drivers/dma-buf/sync_file.c
+++ b/drivers/dma-buf/sync_file.c
@@ -135,12 +135,18 @@ char *sync_file_get_name(struct sync_file *sync_file, char *buf, int len)
 		strscpy(buf, sync_file->user_name, len);
 	} else {
 		struct dma_fence *fence = sync_file->fence;
+		const char __rcu *timeline;
+		const char __rcu *driver;
 
+		rcu_read_lock();
+		driver = dma_fence_driver_name(fence);
+		timeline = dma_fence_timeline_name(fence);
 		snprintf(buf, len, "%s-%s%llu-%lld",
-			 fence->ops->get_driver_name(fence),
-			 fence->ops->get_timeline_name(fence),
+			 rcu_dereference(driver),
+			 rcu_dereference(timeline),
 			 fence->context,
 			 fence->seqno);
+		rcu_read_unlock();
 	}
 
 	return buf;
@@ -262,9 +268,17 @@ err_put_fd:
 static int sync_fill_fence_info(struct dma_fence *fence,
 				 struct sync_fence_info *info)
 {
-	strscpy(info->obj_name, fence->ops->get_timeline_name(fence),
+	const char __rcu *timeline;
+	const char __rcu *driver;
+
+	rcu_read_lock();
+
+	driver = dma_fence_driver_name(fence);
+	timeline = dma_fence_timeline_name(fence);
+
+	strscpy(info->obj_name, rcu_dereference(timeline),
 		sizeof(info->obj_name));
-	strscpy(info->driver_name, fence->ops->get_driver_name(fence),
+	strscpy(info->driver_name, rcu_dereference(driver),
 		sizeof(info->driver_name));
 
 	info->status = dma_fence_get_status(fence);
@@ -273,6 +287,8 @@ static int sync_fill_fence_info(struct dma_fence *fence,
 			ktime_to_ns(dma_fence_timestamp(fence)) :
 			ktime_set(0, 0);
 
+	rcu_read_unlock();
+
 	return info->status;
 }
 
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index c9d0c68d2fcb..40399c26e6be 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -109,29 +109,22 @@ static int mmap_udmabuf(struct dma_buf *buf, struct vm_area_struct *vma)
 static int vmap_udmabuf(struct dma_buf *buf, struct iosys_map *map)
 {
 	struct udmabuf *ubuf = buf->priv;
-	unsigned long *pfns;
+	struct page **pages;
 	void *vaddr;
 	pgoff_t pg;
 
 	dma_resv_assert_held(buf->resv);
 
-	/**
-	 * HVO may free tail pages, so just use pfn to map each folio
-	 * into vmalloc area.
-	 */
-	pfns = kvmalloc_array(ubuf->pagecount, sizeof(*pfns), GFP_KERNEL);
-	if (!pfns)
+	pages = kvmalloc_array(ubuf->pagecount, sizeof(*pages), GFP_KERNEL);
+	if (!pages)
 		return -ENOMEM;
 
-	for (pg = 0; pg < ubuf->pagecount; pg++) {
-		unsigned long pfn = folio_pfn(ubuf->folios[pg]);
-
-		pfn += ubuf->offsets[pg] >> PAGE_SHIFT;
-		pfns[pg] = pfn;
-	}
+	for (pg = 0; pg < ubuf->pagecount; pg++)
+		pages[pg] = folio_page(ubuf->folios[pg],
+				       ubuf->offsets[pg] >> PAGE_SHIFT);
 
-	vaddr = vmap_pfn(pfns, ubuf->pagecount, PAGE_KERNEL);
-	kvfree(pfns);
+	vaddr = vm_map_ram(pages, ubuf->pagecount, -1);
+	kvfree(pages);
 	if (!vaddr)
 		return -EINVAL;