From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/drivers/gpu/drm/i915/gvt/mmio.c | 57 ++++++++++++++++++++++++++++++++++-----------------------
1 files changed, 34 insertions(+), 23 deletions(-)
diff --git a/kernel/drivers/gpu/drm/i915/gvt/mmio.c b/kernel/drivers/gpu/drm/i915/gvt/mmio.c
index 9bb9a85..24210b1 100644
--- a/kernel/drivers/gpu/drm/i915/gvt/mmio.c
+++ b/kernel/drivers/gpu/drm/i915/gvt/mmio.c
@@ -39,6 +39,7 @@
/**
* intel_vgpu_gpa_to_mmio_offset - translate a GPA to MMIO offset
* @vgpu: a vGPU
+ * @gpa: guest physical address
*
* Returns:
* Zero on success, negative error code if failed
@@ -56,7 +57,7 @@
(reg >= gvt->device_info.gtt_start_offset \
&& reg < gvt->device_info.gtt_start_offset + gvt_ggtt_sz(gvt))
-static void failsafe_emulate_mmio_rw(struct intel_vgpu *vgpu, uint64_t pa,
+static void failsafe_emulate_mmio_rw(struct intel_vgpu *vgpu, u64 pa,
void *p_data, unsigned int bytes, bool read)
{
struct intel_gvt *gvt = NULL;
@@ -98,10 +99,11 @@
* Returns:
* Zero on success, negative error code if failed
*/
-int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa,
+int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, u64 pa,
void *p_data, unsigned int bytes)
{
struct intel_gvt *gvt = vgpu->gvt;
+ struct drm_i915_private *i915 = gvt->gt->i915;
unsigned int offset = 0;
int ret = -EINVAL;
@@ -113,15 +115,17 @@
offset = intel_vgpu_gpa_to_mmio_offset(vgpu, pa);
- if (WARN_ON(bytes > 8))
+ if (drm_WARN_ON(&i915->drm, bytes > 8))
goto err;
if (reg_is_gtt(gvt, offset)) {
- if (WARN_ON(!IS_ALIGNED(offset, 4) && !IS_ALIGNED(offset, 8)))
+ if (drm_WARN_ON(&i915->drm, !IS_ALIGNED(offset, 4) &&
+ !IS_ALIGNED(offset, 8)))
goto err;
- if (WARN_ON(bytes != 4 && bytes != 8))
+ if (drm_WARN_ON(&i915->drm, bytes != 4 && bytes != 8))
goto err;
- if (WARN_ON(!reg_is_gtt(gvt, offset + bytes - 1)))
+ if (drm_WARN_ON(&i915->drm,
+ !reg_is_gtt(gvt, offset + bytes - 1)))
goto err;
ret = intel_vgpu_emulate_ggtt_mmio_read(vgpu, offset,
@@ -131,16 +135,16 @@
goto out;
}
- if (WARN_ON_ONCE(!reg_is_mmio(gvt, offset))) {
+ if (drm_WARN_ON_ONCE(&i915->drm, !reg_is_mmio(gvt, offset))) {
ret = intel_gvt_hypervisor_read_gpa(vgpu, pa, p_data, bytes);
goto out;
}
- if (WARN_ON(!reg_is_mmio(gvt, offset + bytes - 1)))
+ if (drm_WARN_ON(&i915->drm, !reg_is_mmio(gvt, offset + bytes - 1)))
goto err;
if (!intel_gvt_mmio_is_unalign(gvt, offset)) {
- if (WARN_ON(!IS_ALIGNED(offset, bytes)))
+ if (drm_WARN_ON(&i915->drm, !IS_ALIGNED(offset, bytes)))
goto err;
}
@@ -170,10 +174,11 @@
* Returns:
* Zero on success, negative error code if failed
*/
-int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa,
+int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, u64 pa,
void *p_data, unsigned int bytes)
{
struct intel_gvt *gvt = vgpu->gvt;
+ struct drm_i915_private *i915 = gvt->gt->i915;
unsigned int offset = 0;
int ret = -EINVAL;
@@ -186,15 +191,17 @@
offset = intel_vgpu_gpa_to_mmio_offset(vgpu, pa);
- if (WARN_ON(bytes > 8))
+ if (drm_WARN_ON(&i915->drm, bytes > 8))
goto err;
if (reg_is_gtt(gvt, offset)) {
- if (WARN_ON(!IS_ALIGNED(offset, 4) && !IS_ALIGNED(offset, 8)))
+ if (drm_WARN_ON(&i915->drm, !IS_ALIGNED(offset, 4) &&
+ !IS_ALIGNED(offset, 8)))
goto err;
- if (WARN_ON(bytes != 4 && bytes != 8))
+ if (drm_WARN_ON(&i915->drm, bytes != 4 && bytes != 8))
goto err;
- if (WARN_ON(!reg_is_gtt(gvt, offset + bytes - 1)))
+ if (drm_WARN_ON(&i915->drm,
+ !reg_is_gtt(gvt, offset + bytes - 1)))
goto err;
ret = intel_vgpu_emulate_ggtt_mmio_write(vgpu, offset,
@@ -204,7 +211,7 @@
goto out;
}
- if (WARN_ON_ONCE(!reg_is_mmio(gvt, offset))) {
+ if (drm_WARN_ON_ONCE(&i915->drm, !reg_is_mmio(gvt, offset))) {
ret = intel_gvt_hypervisor_write_gpa(vgpu, pa, p_data, bytes);
goto out;
}
@@ -228,7 +235,7 @@
/**
* intel_vgpu_reset_mmio - reset virtual MMIO space
* @vgpu: a vGPU
- *
+ * @dmlr: whether this is device model level reset
*/
void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr)
{
@@ -238,14 +245,16 @@
if (dmlr) {
memcpy(vgpu->mmio.vreg, mmio, info->mmio_size);
- memcpy(vgpu->mmio.sreg, mmio, info->mmio_size);
vgpu_vreg_t(vgpu, GEN6_GT_THREAD_STATUS_REG) = 0;
/* set the bit 0:2(Core C-State ) to C0 */
vgpu_vreg_t(vgpu, GEN6_GT_CORE_STATUS) = 0;
- if (IS_BROXTON(vgpu->gvt->dev_priv)) {
+ /* uc reset hw expect GS_MIA_IN_RESET */
+ vgpu_vreg_t(vgpu, GUC_STATUS) |= GS_MIA_IN_RESET;
+
+ if (IS_BROXTON(vgpu->gvt->gt->i915)) {
vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) &=
~(BIT(0) | BIT(1));
vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) &=
@@ -271,6 +280,11 @@
vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_C)) |=
BXT_PHY_CMNLANE_POWERDOWN_ACK |
BXT_PHY_LANE_POWERDOWN_ACK;
+ vgpu_vreg_t(vgpu, SKL_FUSE_STATUS) |=
+ SKL_FUSE_DOWNLOAD_STATUS |
+ SKL_FUSE_PG_DIST_STATUS(SKL_PG0) |
+ SKL_FUSE_PG_DIST_STATUS(SKL_PG1) |
+ SKL_FUSE_PG_DIST_STATUS(SKL_PG2);
}
} else {
#define GVT_GEN8_MMIO_RESET_OFFSET (0x44200)
@@ -279,7 +293,6 @@
* touched
*/
memcpy(vgpu->mmio.vreg, mmio, GVT_GEN8_MMIO_RESET_OFFSET);
- memcpy(vgpu->mmio.sreg, mmio, GVT_GEN8_MMIO_RESET_OFFSET);
}
}
@@ -295,11 +308,9 @@
{
const struct intel_gvt_device_info *info = &vgpu->gvt->device_info;
- vgpu->mmio.vreg = vzalloc(array_size(info->mmio_size, 2));
+ vgpu->mmio.vreg = vzalloc(info->mmio_size);
if (!vgpu->mmio.vreg)
return -ENOMEM;
-
- vgpu->mmio.sreg = vgpu->mmio.vreg + info->mmio_size;
intel_vgpu_reset_mmio(vgpu, true);
@@ -314,5 +325,5 @@
void intel_vgpu_clean_mmio(struct intel_vgpu *vgpu)
{
vfree(vgpu->mmio.vreg);
- vgpu->mmio.vreg = vgpu->mmio.sreg = NULL;
+ vgpu->mmio.vreg = NULL;
}
--
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