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| author | Changbin Du <changbin.du@intel.com> | 2017-06-06 15:56:13 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-06-08 13:59:20 +0800 |
| commit | fbfd76c3746a322a9f33f77b66f85d4f68cabe4a (patch) | |
| tree | 8d23172e719cf060e9d5c78c1f7a848d3ce03f35 | |
| parent | 5c6d4c676d0ccba2dcd97e47e1f10321da423e7d (diff) | |
| download | op-kernel-dev-fbfd76c3746a322a9f33f77b66f85d4f68cabe4a.zip op-kernel-dev-fbfd76c3746a322a9f33f77b66f85d4f68cabe4a.tar.gz | |
drm/i915/gvt: Add helper for tuning MMIO hash table
We count all the tracked virtual MMIO registers, which can help us to
tune the MMIO hash table.
v2: Move num_tracked_mmio into gvt structure.
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gvt.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/handlers.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index b9a277c..ffb9ebb 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -215,6 +215,7 @@ struct intel_gvt_mmio { #define F_UNALIGN (1 << 6) DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS); + unsigned int num_tracked_mmio; }; struct intel_gvt_firmware { diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 8ba7cf5..eb3dc15 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -124,6 +124,7 @@ static int new_mmio_info(struct intel_gvt *gvt, gvt->mmio.mmio_attribute[info->offset / 4] = flags; INIT_HLIST_NODE(&info->node); hash_add(gvt->mmio.mmio_info_table, &info->node, info->offset); + gvt->mmio.num_tracked_mmio++; } return 0; } @@ -2931,6 +2932,9 @@ int intel_gvt_setup_mmio_info(struct intel_gvt *gvt) if (ret) goto err; } + + gvt_dbg_mmio("traced %u virtual mmio registers\n", + gvt->mmio.num_tracked_mmio); return 0; err: intel_gvt_clean_mmio_info(gvt); |
