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drm/i915/gvt: Add VM healthy check for workload_thread 

When a scan error occurs in dispatch_workload, this patch is to
check the healthy state and free all the queued workloads before
the failsafe mode is entered.

Signed-off-by: fred gao <fred.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
fred gao 2017-09-19 15:11:28 +08:00 committed by Zhenyu Wang
parent 5c56883a95
commit e011c6ce2b
3 changed files with 16 additions and 1 deletions
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6
drivers/gpu/drm/i915/gvt/gvt.h
View File

@ -193,6 +193,10 @@ struct intel_vgpu {
#endif
};
/* validating GM healthy status*/
#define vgpu_is_vm_unhealthy(ret_val) \
(((ret_val) == -EBADRQC) || ((ret_val) == -EFAULT))
struct intel_gvt_gm {
unsigned long vgpu_allocated_low_gm_size;
unsigned long vgpu_allocated_high_gm_size;
@ -497,6 +501,7 @@ int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci);
void populate_pvinfo_page(struct intel_vgpu *vgpu);
int intel_gvt_scan_and_shadow_workload(struct intel_vgpu_workload *workload);
void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason);
struct intel_gvt_ops {
int (*emulate_cfg_read)(struct intel_vgpu *, unsigned int, void *,
@ -519,6 +524,7 @@ struct intel_gvt_ops {
enum {
GVT_FAILSAFE_UNSUPPORTED_GUEST,
GVT_FAILSAFE_INSUFFICIENT_RESOURCE,
GVT_FAILSAFE_GUEST_ERR,
};
static inline void mmio_hw_access_pre(struct drm_i915_private *dev_priv)

4
drivers/gpu/drm/i915/gvt/handlers.c
View File

@ -157,7 +157,7 @@ static int render_mmio_to_ring_id(struct intel_gvt *gvt, unsigned int reg)
(num * 8 + i915_mmio_reg_offset(FENCE_REG_GEN6_LO(0)))
static void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason)
void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason)
{
switch (reason) {
case GVT_FAILSAFE_UNSUPPORTED_GUEST:
@ -165,6 +165,8 @@ static void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason)
break;
case GVT_FAILSAFE_INSUFFICIENT_RESOURCE:
pr_err("Graphics resource is not enough for the guest\n");
case GVT_FAILSAFE_GUEST_ERR:
pr_err("GVT Internal error for the guest\n");
default:
break;
}

7
drivers/gpu/drm/i915/gvt/scheduler.c
View File

@ -634,6 +634,13 @@ static int workload_thread(void *priv)
FORCEWAKE_ALL);
intel_runtime_pm_put(gvt->dev_priv);
if (ret && (vgpu_is_vm_unhealthy(ret))) {
mutex_lock(&gvt->lock);
intel_vgpu_clean_execlist(vgpu);
mutex_unlock(&gvt->lock);
enter_failsafe_mode(vgpu, GVT_FAILSAFE_GUEST_ERR);
}
}
return 0;
}