diff options
| author | Changbin Du <changbin.du@intel.com> | 2018-05-15 10:35:40 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2018-07-09 10:23:41 +0800 |
| commit | 4c9414d7b152bf344521bf786b5748e833270776 (patch) | |
| tree | 4c73668eaff04efdc51f169b3a69f0fac1a06d9c /drivers/gpu/drm/i915/gvt/gtt.c | |
| parent | 155521c93e468211673206e1871b53d26a44a82d (diff) | |
drm/i915/gvt: Make PTE iterator 64K entry aware
64K PTE is special, only PTE#0, PTE#16, PTE#32, ... PTE#496 are used in
the page table.
Signed-off-by: Changbin Du <changbin.du@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 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 15f6908fc648..7fc277cceb23 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -351,6 +351,8 @@ static inline int gtt_set_entry64(void *pt, #define GTT_SPTE_FLAG_MASK GENMASK_ULL(62, 52) #define GTT_SPTE_FLAG_64K_SPLITED BIT(52) /* splited 64K gtt entry */ +#define GTT_64K_PTE_STRIDE 16 + static unsigned long gen8_gtt_get_pfn(struct intel_gvt_gtt_entry *e) { unsigned long pfn; @@ -889,12 +891,14 @@ static struct intel_vgpu_ppgtt_spt *ppgtt_alloc_spt_gfn( (I915_GTT_PAGE_SIZE >> pt_entry_size_shift(spt)) #define for_each_present_guest_entry(spt, e, i) \ - for (i = 0; i < pt_entries(spt); i++) \ + for (i = 0; i < pt_entries(spt); \ + i += spt->guest_page.pde_ips ? GTT_64K_PTE_STRIDE : 1) \ if (!ppgtt_get_guest_entry(spt, e, i) && \ spt->vgpu->gvt->gtt.pte_ops->test_present(e)) #define for_each_present_shadow_entry(spt, e, i) \ - for (i = 0; i < pt_entries(spt); i++) \ + for (i = 0; i < pt_entries(spt); \ + i += spt->shadow_page.pde_ips ? GTT_64K_PTE_STRIDE : 1) \ if (!ppgtt_get_shadow_entry(spt, e, i) && \ spt->vgpu->gvt->gtt.pte_ops->test_present(e)) |