From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/drivers/gpu/drm/i915/gvt/handlers.c | 44 +++++++++++++++++++++++++++++++++++++++++---
1 files changed, 41 insertions(+), 3 deletions(-)
diff --git a/kernel/drivers/gpu/drm/i915/gvt/handlers.c b/kernel/drivers/gpu/drm/i915/gvt/handlers.c
index 606e6c3..55ce7aa 100644
--- a/kernel/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/kernel/drivers/gpu/drm/i915/gvt/handlers.c
@@ -3135,9 +3135,10 @@
MMIO_DFH(TRVATTL3PTRDW(2), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(TRVATTL3PTRDW(3), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
MMIO_DFH(TRVADR, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
- MMIO_DFH(TRTTE, D_SKL_PLUS, F_CMD_ACCESS,
- NULL, gen9_trtte_write);
- MMIO_DH(_MMIO(0x4dfc), D_SKL_PLUS, NULL, gen9_trtt_chicken_write);
+ MMIO_DFH(TRTTE, D_SKL_PLUS, F_CMD_ACCESS | F_PM_SAVE,
+ NULL, gen9_trtte_write);
+ MMIO_DFH(_MMIO(0x4dfc), D_SKL_PLUS, F_PM_SAVE,
+ NULL, gen9_trtt_chicken_write);
MMIO_D(_MMIO(0x46430), D_SKL_PLUS);
@@ -3686,3 +3687,40 @@
intel_vgpu_default_mmio_read(vgpu, offset, pdata, bytes) :
intel_vgpu_default_mmio_write(vgpu, offset, pdata, bytes);
}
+
+void intel_gvt_restore_fence(struct intel_gvt *gvt)
+{
+ struct intel_vgpu *vgpu;
+ int i, id;
+
+ idr_for_each_entry(&(gvt)->vgpu_idr, vgpu, id) {
+ mmio_hw_access_pre(gvt->gt);
+ for (i = 0; i < vgpu_fence_sz(vgpu); i++)
+ intel_vgpu_write_fence(vgpu, i, vgpu_vreg64(vgpu, fence_num_to_offset(i)));
+ mmio_hw_access_post(gvt->gt);
+ }
+}
+
+static inline int mmio_pm_restore_handler(struct intel_gvt *gvt,
+ u32 offset, void *data)
+{
+ struct intel_vgpu *vgpu = data;
+ struct drm_i915_private *dev_priv = gvt->gt->i915;
+
+ if (gvt->mmio.mmio_attribute[offset >> 2] & F_PM_SAVE)
+ I915_WRITE(_MMIO(offset), vgpu_vreg(vgpu, offset));
+
+ return 0;
+}
+
+void intel_gvt_restore_mmio(struct intel_gvt *gvt)
+{
+ struct intel_vgpu *vgpu;
+ int id;
+
+ idr_for_each_entry(&(gvt)->vgpu_idr, vgpu, id) {
+ mmio_hw_access_pre(gvt->gt);
+ intel_gvt_for_each_tracked_mmio(gvt, mmio_pm_restore_handler, vgpu);
+ mmio_hw_access_post(gvt->gt);
+ }
+}
--
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