diff options
| author | Changbin Du <changbin.du@intel.com> | 2018-01-30 14:19:44 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2018-03-06 08:19:15 +0300 |
| commit | bc37ab56790fdd57da36fd98aca2dacfb6453d3d (patch) | |
| tree | e35edbcd349416865fa587811fec8fe196d06339 /drivers/gpu/drm/i915/gvt/gtt.c | |
| parent | b0c766bf2911ad5d16affa0d34cf00c246a3c47a (diff) | |
| download | linux-bc37ab56790fdd57da36fd98aca2dacfb6453d3d.tar.xz | |
drm/i915/gvt: Add verbose gtt shadow logs
This add a new macro gvt_vdbg_mm() to print more verbose logs for
gtt shadowing. The added verbose logs are very useful for debugging.
gvt_vdbg_mm() only comes into effect if VERBOSE_DEBUG is defined by
the developer.
Signed-off-by: Changbin Du <changbin.du@intel.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gtt.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 82454fb1d566..8ce82a294bea 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -38,6 +38,12 @@ #include "i915_pvinfo.h" #include "trace.h" +#if defined(VERBOSE_DEBUG) +#define gvt_vdbg_mm(fmt, args...) gvt_dbg_mm(fmt, ##args) +#else +#define gvt_vdbg_mm(fmt, args...) +#endif + static bool enable_out_of_sync = false; static int preallocated_oos_pages = 8192; @@ -582,6 +588,9 @@ static inline int ppgtt_spt_get_entry( return ret; ops->test_pse(e); + + gvt_vdbg_mm("read ppgtt entry, spt type %d, entry type %d, index %lu, value %llx\n", + type, e->type, index, e->val64); return 0; } @@ -597,6 +606,9 @@ static inline int ppgtt_spt_set_entry( if (WARN(!gtt_type_is_entry(e->type), "invalid entry type\n")) return -EINVAL; + gvt_vdbg_mm("set ppgtt entry, spt type %d, entry type %d, index %lu, value %llx\n", + type, e->type, index, e->val64); + return ops->set_entry(page_table, e, index, guest, spt->guest_page.track.gfn << I915_GTT_PAGE_SHIFT, spt->vgpu); @@ -1109,6 +1121,9 @@ static int ppgtt_handle_guest_entry_removal(struct intel_vgpu_guest_page *gpt, trace_gpt_change(spt->vgpu->id, "remove", spt, sp->type, se->val64, index); + gvt_vdbg_mm("destroy old shadow entry, type %d, index %lu, value %llx\n", + se->type, index, se->val64); + if (!ops->test_present(se)) return 0; @@ -1147,6 +1162,9 @@ static int ppgtt_handle_guest_entry_add(struct intel_vgpu_guest_page *gpt, trace_gpt_change(spt->vgpu->id, "add", spt, sp->type, we->val64, index); + gvt_vdbg_mm("add shadow entry: type %d, index %lu, value %llx\n", + we->type, index, we->val64); + if (gtt_type_is_pt(get_next_pt_type(we->type))) { s = ppgtt_populate_shadow_page_by_guest_entry(vgpu, we); if (IS_ERR(s)) { |