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drm/i915/gvt: Add PTE IPS bit operations

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Add three IPS operation functions to test/set/clear IPS in PDE.

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 2018-05-15 10:35:34 +08:00 committed by Zhenyu Wang
parent b294657d1b
commit 6fd7937832
2 changed files with 20 additions and 0 deletions
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18
drivers/gpu/drm/i915/gvt/gtt.c
View file

@ -400,6 +400,22 @@ static bool gen8_gtt_test_pse(struct intel_gvt_gtt_entry *e)
return true;
}
static bool gen8_gtt_test_ips(struct intel_gvt_gtt_entry *e)
{
if (GEM_WARN_ON(e->type != GTT_TYPE_PPGTT_PDE_ENTRY))
return false;
return !!(e->val64 & GEN8_PDE_IPS_64K);
}
static void gen8_gtt_clear_ips(struct intel_gvt_gtt_entry *e)
{
if (GEM_WARN_ON(e->type != GTT_TYPE_PPGTT_PDE_ENTRY))
return;
e->val64 &= ~GEN8_PDE_IPS_64K;
}
static bool gen8_gtt_test_present(struct intel_gvt_gtt_entry *e)
{
/*
@ -456,6 +472,8 @@ static struct intel_gvt_gtt_pte_ops gen8_gtt_pte_ops = {
.set_present = gtt_entry_set_present,
.test_present = gen8_gtt_test_present,
.test_pse = gen8_gtt_test_pse,
.clear_ips = gen8_gtt_clear_ips,
.test_ips = gen8_gtt_test_ips,
.get_pfn = gen8_gtt_get_pfn,
.set_pfn = gen8_gtt_set_pfn,
};

2
drivers/gpu/drm/i915/gvt/gtt.h
View file

@ -63,6 +63,8 @@ struct intel_gvt_gtt_pte_ops {
void (*clear_present)(struct intel_gvt_gtt_entry *e);
void (*set_present)(struct intel_gvt_gtt_entry *e);
bool (*test_pse)(struct intel_gvt_gtt_entry *e);
bool (*test_ips)(struct intel_gvt_gtt_entry *e);
void (*clear_ips)(struct intel_gvt_gtt_entry *e);
void (*set_pfn)(struct intel_gvt_gtt_entry *e, unsigned long pfn);
unsigned long (*get_pfn)(struct intel_gvt_gtt_entry *e);
};