Merge tag 'drm-xe-next-2025-04-17' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Core Changes:
Fix drm_gpusvm kernel-doc (Lucas)

Driver Changes:
- Release guc ids before cancelling work (Tejas)
- Remove a duplicated pc_start_call (Rodrigo)
- Fix an incorrect assert in previous userptr fixes (Thomas)
- Remove gen11 assertions and prefixes (Lucas)
- Drop sentinels from arg to xe_rtp_process_to_src (Lucas)
- Temporarily disable D3Cold on BMG (Rodrigo)
- Fix MOCS debugfs LNCF readout (Tvrtko)
- Some ring flush cleanups (Tvrtko)
- Use unsigned int for alignment in fb pinning code (Tvrtko)
- Retry and wait longer for GuC PC start (Rodrigo)
- Recognize 3DSTATE_COARSE_PIXEL in LRC dumps (Matt Roper)
- Remove reduntant check in xe_vm_create_ioctl() (Xin)
- A bunch of SRIOV updates (Michal)
- Add stats for SVM page-faults (Francois)
- Fix an UAF (Harish)
- Expose fan speed (Raag)
- Fix exporting xe buffer objects multiple times (Tomasz)
- Apply a workaround (Vinay)
- Simplify pinned bo iteration (Thomas)
- Remove an incorrect "static" keywork (Lucas)
- Add support for separate firmware files on each GT (Lucas)
- Survivability handling fixes (Lucas)
- Allow to inject error in early probe (Lucas)
- Fix unmet direct dependencies warning (Yue Haibing)
- More error injection during probe (Francois)
- Coding style fix (Maarten)
- Additional stats support (Riana)
- Add fault injection for xe_oa_alloc_regs (Nakshrtra)
- Add a BMG PCI ID (Matt Roper)
- Some SVM fixes and preliminary SVM multi-device work (Thomas)
- Switch the migrate code from drm managed to dev managed (Aradhya)
- Fix an out-of-bounds shift when invalidating TLB (Thomas)
- Ensure fixed_slice_mode gets set after ccs_mode change (Niranjana)
- Use local fence in error path of xe_migrate_clear (Matthew Brost)
- More Workarounds (Julia)
- Define sysfs_ops on all directories (Tejas)
- Set power state to D3Cold during s2idle/s3 (Badal)
- Devcoredump output fix (John)
- Avoid plain 64-bit division (Arnd Bergmann)
- Reword a debug message (John)
- Don't print a hwconfig error message when forcing execlists (Stuart)
- Restore an error code to avoid a smatch warning (Rodrigo)
- Invalidate L3 read-only cachelines for geometry streams too (Kenneth)
- Make PPHWSP size explicit in xe_gt_lrc_size() (Gustavo)
- Add GT frequency events (Vinay)
- Fix xe_pt_stage_bind_walk kerneldoc (Thomas)
- Add a workaround (Aradhya)
- Rework pinned save/restore (Matthew Auld, Matthew Brost)
- Allow non-contig VRAM kernel BO (Matthew Auld)
- Support non-contig VRAM provisioning for SRIOV (Matthew Auld)
- Allow scratch-pages for unmapped parts of page-faulting VMs. (Oak)
- Ensure XE_BO_FLAG_CPU_ADDR_MIRROR had a unique value (Matt Roper)
- Fix taking an invalid lock on wedge (Lucas)
- Configs and documentation for survivability mode (Riana)
- Remove an unused macro (Shuicheng)
- Work around a page-fault full error (Matt Brost)
- Enable a SRIOV workaround (John)
- Bump the recommended GuC version (John)
- Allow to drop VRAM resizing (Lucas)
- Don't expose privileged debugfs files if VF (Michal)
- Don't show GGTT/LMEM debugfs files under media GT (Michal)
- Adjust ring-buffer emission for maximum possible size (Tvrtko)
- Fix notifier vs folio lock deadlock (Matthew Auld)
- Stop relying on placement for dma-buf unmap Matthew Auld)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://lore.kernel.org/r/aADWaEFKVmxSnDLo@fedora

1 files changed, 21 insertions, 2 deletions

diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c
index f8c128524d9f..56b18a293bbc 100644
--- a/drivers/gpu/drm/xe/xe_svm.c
+++ b/drivers/gpu/drm/xe/xe_svm.c
@@ -4,6 +4,7 @@
  */
 
 #include "xe_bo.h"
+#include "xe_gt_stats.h"
 #include "xe_gt_tlb_invalidation.h"
 #include "xe_migrate.h"
 #include "xe_module.h"
@@ -339,6 +340,8 @@ static void xe_svm_garbage_collector_work_func(struct work_struct *w)
 	up_write(&vm->lock);
 }
 
+#if IS_ENABLED(CONFIG_DRM_XE_DEVMEM_MIRROR)
+
 static struct xe_vram_region *page_to_vr(struct page *page)
 {
 	return container_of(page_pgmap(page), struct xe_vram_region, pagemap);
@@ -577,6 +580,8 @@ static const struct drm_gpusvm_devmem_ops gpusvm_devmem_ops = {
 	.copy_to_ram = xe_svm_copy_to_ram,
 };
 
+#endif
+
 static const struct drm_gpusvm_ops gpusvm_ops = {
 	.range_alloc = xe_svm_range_alloc,
 	.range_free = xe_svm_range_free,
@@ -650,6 +655,7 @@ static bool xe_svm_range_is_valid(struct xe_svm_range *range,
 	return (range->tile_present & ~range->tile_invalidated) & BIT(tile->id);
 }
 
+#if IS_ENABLED(CONFIG_DRM_XE_DEVMEM_MIRROR)
 static struct xe_vram_region *tile_to_vr(struct xe_tile *tile)
 {
 	return &tile->mem.vram;
@@ -711,12 +717,21 @@ unlock:
 
 	return err;
 }
+#else
+static int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
+			     struct xe_svm_range *range,
+			     const struct drm_gpusvm_ctx *ctx)
+{
+	return -EOPNOTSUPP;
+}
+#endif
+
 
 /**
  * xe_svm_handle_pagefault() - SVM handle page fault
  * @vm: The VM.
  * @vma: The CPU address mirror VMA.
- * @tile: The tile upon the fault occurred.
+ * @gt: The gt upon the fault occurred.
  * @fault_addr: The GPU fault address.
  * @atomic: The fault atomic access bit.
  *
@@ -726,7 +741,7 @@ unlock:
  * Return: 0 on success, negative error code on error.
  */
 int xe_svm_handle_pagefault(struct xe_vm *vm, struct xe_vma *vma,
-			    struct xe_tile *tile, u64 fault_addr,
+			    struct xe_gt *gt, u64 fault_addr,
 			    bool atomic)
 {
 	struct drm_gpusvm_ctx ctx = {
@@ -740,12 +755,15 @@ int xe_svm_handle_pagefault(struct xe_vm *vm, struct xe_vma *vma,
 	struct drm_gpusvm_range *r;
 	struct drm_exec exec;
 	struct dma_fence *fence;
+	struct xe_tile *tile = gt_to_tile(gt);
 	ktime_t end = 0;
 	int err;
 
 	lockdep_assert_held_write(&vm->lock);
 	xe_assert(vm->xe, xe_vma_is_cpu_addr_mirror(vma));
 
+	xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_PAGEFAULT_COUNT, 1);
+
 retry:
 	/* Always process UNMAPs first so view SVM ranges is current */
 	err = xe_svm_garbage_collector(vm);
@@ -866,6 +884,7 @@ int xe_svm_bo_evict(struct xe_bo *bo)
 }
 
 #if IS_ENABLED(CONFIG_DRM_XE_DEVMEM_MIRROR)
+
 static struct drm_pagemap_device_addr
 xe_drm_pagemap_device_map(struct drm_pagemap *dpagemap,
 			  struct device *dev,