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drm/i915/gvt: Remove disable_warn_untrack and print untracked mmio with debug level 

The disable_warn_untrack never prevent gvt from printing untracked
mmio errors. We were disturbed by this error storm and the fix is
just adding them to the list with no essential new change.

This message is only useful for enabling new platform during
developing process. So lower the message level to debug and then
remove disable_warn_untrack.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Changbin Du 2018-04-19 12:12:37 +08:00 committed by Zhi Wang
parent 3eda0d22ea
commit b99f514f5d
3 changed files with 3 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/gvt/gvt.h
View File

@ -99,7 +99,6 @@ struct intel_vgpu_fence {
struct intel_vgpu_mmio {
void *vreg;
void *sreg;
bool disable_warn_untrack;
};
#define INTEL_GVT_MAX_BAR_NUM 4

11
drivers/gpu/drm/i915/gvt/handlers.c
View File

@ -191,6 +191,8 @@ static int sanitize_fence_mmio_access(struct intel_vgpu *vgpu,
unsigned int max_fence = vgpu_fence_sz(vgpu);
if (fence_num >= max_fence) {
gvt_vgpu_err("access oob fence reg %d/%d\n",
fence_num, max_fence);
/* When guest access oob fence regs without access
* pv_info first, we treat guest not supporting GVT,
@ -200,11 +202,6 @@ static int sanitize_fence_mmio_access(struct intel_vgpu *vgpu,
enter_failsafe_mode(vgpu,
GVT_FAILSAFE_UNSUPPORTED_GUEST);
if (!vgpu->mmio.disable_warn_untrack) {
gvt_vgpu_err("found oob fence register access\n");
gvt_vgpu_err("total fence %d, access fence %d\n",
max_fence, fence_num);
}
memset(p_data, 0, bytes);
return -EINVAL;
}
@ -3092,9 +3089,7 @@ int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset,
*/
mmio_info = find_mmio_info(gvt, offset);
if (!mmio_info) {
if (!vgpu->mmio.disable_warn_untrack)
gvt_vgpu_err("untracked MMIO %08x len %d\n",
offset, bytes);
gvt_dbg_mmio("untracked MMIO %08x len %d\n", offset, bytes);
goto default_rw;
}

2
drivers/gpu/drm/i915/gvt/mmio.c
View File

@ -244,8 +244,6 @@ void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr)
/* set the bit 0:2(Core C-State ) to C0 */
vgpu_vreg_t(vgpu, GEN6_GT_CORE_STATUS) = 0;
vgpu->mmio.disable_warn_untrack = false;
} else {
#define GVT_GEN8_MMIO_RESET_OFFSET (0x44200)
/* only reset the engine related, so starting with 0x44200