[Intel-gfx] [PATCH v5] drm/i915: Re-use i915 macros for checking PTEs

[Michael Cheng]

Certain gen8 ppgtt/gtt functions are using _PAGE_RW and _PAGE_PRESENT to check
bits 0 and 1 for PTEs. These macros are defined per architectures, and some
architectures do not have these defined (like arm64). This patch replaces these
two macros with their i915 equivalent implementation.

Signed-off-by: Michael Cheng <michael.cheng at intel.com>
---
 drivers/gpu/drm/i915/gt/gen8_ppgtt.c |  6 +++---
 drivers/gpu/drm/i915/gt/intel_ggtt.c |  2 +-
 drivers/gpu/drm/i915/gvt/gtt.c       | 12 ++++++------
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
index 9966e9dc5218..cc484cc6c26f 100644
--- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
@@ -18,7 +18,7 @@
 static u64 gen8_pde_encode(const dma_addr_t addr,
 			   const enum i915_cache_level level)
 {
-	u64 pde = addr | _PAGE_PRESENT | _PAGE_RW;
+	u64 pde = addr | GEN6_PTE_VALID | BYT_PTE_WRITEABLE;
 
 	if (level != I915_CACHE_NONE)
 		pde |= PPAT_CACHED_PDE;
@@ -32,10 +32,10 @@ static u64 gen8_pte_encode(dma_addr_t addr,
 			   enum i915_cache_level level,
 			   u32 flags)
 {
-	gen8_pte_t pte = addr | _PAGE_PRESENT | _PAGE_RW;
+	gen8_pte_t pte = addr | GEN6_PTE_VALID | BYT_PTE_WRITEABLE;
 
 	if (unlikely(flags & PTE_READ_ONLY))
-		pte &= ~_PAGE_RW;
+		pte &= ~BYT_PTE_WRITEABLE;
 
 	if (flags & PTE_LM)
 		pte |= GEN12_PPGTT_PTE_LM;
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index 555111c3bee5..76495deaddc2 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -209,7 +209,7 @@ u64 gen8_ggtt_pte_encode(dma_addr_t addr,
 			 enum i915_cache_level level,
 			 u32 flags)
 {
-	gen8_pte_t pte = addr | _PAGE_PRESENT;
+	gen8_pte_t pte = addr | GEN6_PTE_VALID;
 
 	if (flags & PTE_LM)
 		pte |= GEN12_GGTT_PTE_LM;
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 53d0cb327539..e481b639ba0a 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -446,17 +446,17 @@ static bool gen8_gtt_test_present(struct intel_gvt_gtt_entry *e)
 			|| e->type == GTT_TYPE_PPGTT_ROOT_L4_ENTRY)
 		return (e->val64 != 0);
 	else
-		return (e->val64 & _PAGE_PRESENT);
+		return (e->val64 & GEN6_PTE_VALID);
 }
 
 static void gtt_entry_clear_present(struct intel_gvt_gtt_entry *e)
 {
-	e->val64 &= ~_PAGE_PRESENT;
+	e->val64 &= ~GEN6_PTE_VALID;
 }
 
 static void gtt_entry_set_present(struct intel_gvt_gtt_entry *e)
 {
-	e->val64 |= _PAGE_PRESENT;
+	e->val64 |= GEN6_PTE_VALID;
 }
 
 static bool gen8_gtt_test_64k_splited(struct intel_gvt_gtt_entry *e)
@@ -2439,7 +2439,7 @@ static int alloc_scratch_pages(struct intel_vgpu *vgpu,
 		/* The entry parameters like present/writeable/cache type
 		 * set to the same as i915's scratch page tree.
 		 */
-		se.val64 |= _PAGE_PRESENT | _PAGE_RW;
+		se.val64 |= GEN6_PTE_VALID | BYT_PTE_WRITEABLE;
 		if (type == GTT_TYPE_PPGTT_PDE_PT)
 			se.val64 |= PPAT_CACHED;
 
@@ -2896,7 +2896,7 @@ void intel_gvt_restore_ggtt(struct intel_gvt *gvt)
 		offset = vgpu_aperture_gmadr_base(vgpu) >> PAGE_SHIFT;
 		for (idx = 0; idx < num_low; idx++) {
 			pte = mm->ggtt_mm.host_ggtt_aperture[idx];
-			if (pte & _PAGE_PRESENT)
+			if (pte & GEN6_PTE_VALID)
 				write_pte64(vgpu->gvt->gt->ggtt, offset + idx, pte);
 		}
 
@@ -2904,7 +2904,7 @@ void intel_gvt_restore_ggtt(struct intel_gvt *gvt)
 		offset = vgpu_hidden_gmadr_base(vgpu) >> PAGE_SHIFT;
 		for (idx = 0; idx < num_hi; idx++) {
 			pte = mm->ggtt_mm.host_ggtt_hidden[idx];
-			if (pte & _PAGE_PRESENT)
+			if (pte & GEN6_PTE_VALID)
 				write_pte64(vgpu->gvt->gt->ggtt, offset + idx, pte);
 		}
 	}
-- 
2.25.1