From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/drivers/gpu/drm/i915/gvt/gtt.c | 85 +++++++++++++++++++++++++++++++++++-------
1 files changed, 70 insertions(+), 15 deletions(-)
diff --git a/kernel/drivers/gpu/drm/i915/gvt/gtt.c b/kernel/drivers/gpu/drm/i915/gvt/gtt.c
index a3a4305..0d31a0d 100644
--- a/kernel/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/kernel/drivers/gpu/drm/i915/gvt/gtt.c
@@ -636,8 +636,17 @@
struct intel_gvt_gtt_entry *entry, unsigned long index)
{
struct intel_gvt_gtt_pte_ops *pte_ops = mm->vgpu->gvt->gtt.pte_ops;
+ unsigned long offset = index;
GEM_BUG_ON(mm->type != INTEL_GVT_MM_GGTT);
+
+ if (vgpu_gmadr_is_aperture(mm->vgpu, index << I915_GTT_PAGE_SHIFT)) {
+ offset -= (vgpu_aperture_gmadr_base(mm->vgpu) >> PAGE_SHIFT);
+ mm->ggtt_mm.host_ggtt_aperture[offset] = entry->val64;
+ } else if (vgpu_gmadr_is_hidden(mm->vgpu, index << I915_GTT_PAGE_SHIFT)) {
+ offset -= (vgpu_hidden_gmadr_base(mm->vgpu) >> PAGE_SHIFT);
+ mm->ggtt_mm.host_ggtt_hidden[offset] = entry->val64;
+ }
pte_ops->set_entry(NULL, entry, index, false, 0, mm->vgpu);
}
@@ -1192,10 +1201,8 @@
for_each_shadow_entry(sub_spt, &sub_se, sub_index) {
ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu,
start_gfn + sub_index, PAGE_SIZE, &dma_addr);
- if (ret) {
- ppgtt_invalidate_spt(spt);
- return ret;
- }
+ if (ret)
+ goto err;
sub_se.val64 = se->val64;
/* Copy the PAT field from PDE. */
@@ -1214,6 +1221,17 @@
ops->set_pfn(se, sub_spt->shadow_page.mfn);
ppgtt_set_shadow_entry(spt, se, index);
return 0;
+err:
+ /* Cancel the existing addess mappings of DMA addr. */
+ for_each_present_shadow_entry(sub_spt, &sub_se, sub_index) {
+ gvt_vdbg_mm("invalidate 4K entry\n");
+ ppgtt_invalidate_pte(sub_spt, &sub_se);
+ }
+ /* Release the new allocated spt. */
+ trace_spt_change(sub_spt->vgpu->id, "release", sub_spt,
+ sub_spt->guest_page.gfn, sub_spt->shadow_page.type);
+ ppgtt_free_spt(sub_spt);
+ return ret;
}
static int split_64KB_gtt_entry(struct intel_vgpu *vgpu,
@@ -1944,6 +1962,21 @@
return ERR_PTR(-ENOMEM);
}
+ mm->ggtt_mm.host_ggtt_aperture = vzalloc((vgpu_aperture_sz(vgpu) >> PAGE_SHIFT) * sizeof(u64));
+ if (!mm->ggtt_mm.host_ggtt_aperture) {
+ vfree(mm->ggtt_mm.virtual_ggtt);
+ vgpu_free_mm(mm);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ mm->ggtt_mm.host_ggtt_hidden = vzalloc((vgpu_hidden_sz(vgpu) >> PAGE_SHIFT) * sizeof(u64));
+ if (!mm->ggtt_mm.host_ggtt_hidden) {
+ vfree(mm->ggtt_mm.host_ggtt_aperture);
+ vfree(mm->ggtt_mm.virtual_ggtt);
+ vgpu_free_mm(mm);
+ return ERR_PTR(-ENOMEM);
+ }
+
return mm;
}
@@ -1971,6 +2004,8 @@
invalidate_ppgtt_mm(mm);
} else {
vfree(mm->ggtt_mm.virtual_ggtt);
+ vfree(mm->ggtt_mm.host_ggtt_aperture);
+ vfree(mm->ggtt_mm.host_ggtt_hidden);
}
vgpu_free_mm(mm);
@@ -2836,19 +2871,39 @@
}
/**
- * intel_vgpu_reset_gtt - reset the all GTT related status
- * @vgpu: a vGPU
+ * intel_gvt_restore_ggtt - restore all vGPU's ggtt entries
+ * @gvt: intel gvt device
*
- * This function is called from vfio core to reset reset all
- * GTT related status, including GGTT, PPGTT, scratch page.
+ * This function is called at driver resume stage to restore
+ * GGTT entries of every vGPU.
*
*/
-void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu)
+void intel_gvt_restore_ggtt(struct intel_gvt *gvt)
{
- /* Shadow pages are only created when there is no page
- * table tracking data, so remove page tracking data after
- * removing the shadow pages.
- */
- intel_vgpu_destroy_all_ppgtt_mm(vgpu);
- intel_vgpu_reset_ggtt(vgpu, true);
+ struct intel_vgpu *vgpu;
+ struct intel_vgpu_mm *mm;
+ int id;
+ gen8_pte_t pte;
+ u32 idx, num_low, num_hi, offset;
+
+ /* Restore dirty host ggtt for all vGPUs */
+ idr_for_each_entry(&(gvt)->vgpu_idr, vgpu, id) {
+ mm = vgpu->gtt.ggtt_mm;
+
+ num_low = vgpu_aperture_sz(vgpu) >> PAGE_SHIFT;
+ offset = vgpu_aperture_gmadr_base(vgpu) >> PAGE_SHIFT;
+ for (idx = 0; idx < num_low; idx++) {
+ pte = mm->ggtt_mm.host_ggtt_aperture[idx];
+ if (pte & _PAGE_PRESENT)
+ write_pte64(vgpu->gvt->gt->ggtt, offset + idx, pte);
+ }
+
+ num_hi = vgpu_hidden_sz(vgpu) >> PAGE_SHIFT;
+ offset = vgpu_hidden_gmadr_base(vgpu) >> PAGE_SHIFT;
+ for (idx = 0; idx < num_hi; idx++) {
+ pte = mm->ggtt_mm.host_ggtt_hidden[idx];
+ if (pte & _PAGE_PRESENT)
+ write_pte64(vgpu->gvt->gt->ggtt, offset + idx, pte);
+ }
+ }
}
--
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