[PATCH v2 5/7] drm/i915/selftests: use the memcpy_from_wc call from the drm

[Balasubramani Vivekanandan]

memcpy_from_wc functions in i915_memcpy.c will be removed and replaced
by the implementation in drm_cache.c.
Updated to use the functions provided by drm_cache.c.

v2: check if the source and destination memory address is from local
    memory or system memory and initialize the iosys_map accordingly
    (Lucas)

Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Cc: Matthew Auld <matthew.auld at intel.com>
Cc: Thomas Hellstr_m <thomas.hellstrom at linux.intel.com>

Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan at intel.com>
---
 .../drm/i915/selftests/intel_memory_region.c  | 41 +++++++++++++------
 1 file changed, 28 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index ba32893e0873..d16ecb905f3b 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -7,6 +7,7 @@
 #include <linux/sort.h>
 
 #include <drm/drm_buddy.h>
+#include <drm/drm_cache.h>
 
 #include "../i915_selftest.h"
 
@@ -1133,7 +1134,7 @@ static const char *repr_type(u32 type)
 
 static struct drm_i915_gem_object *
 create_region_for_mapping(struct intel_memory_region *mr, u64 size, u32 type,
-			  void **out_addr)
+			  struct iosys_map *out_addr)
 {
 	struct drm_i915_gem_object *obj;
 	void *addr;
@@ -1153,7 +1154,11 @@ create_region_for_mapping(struct intel_memory_region *mr, u64 size, u32 type,
 		return addr;
 	}
 
-	*out_addr = addr;
+	if (i915_gem_object_is_lmem(obj))
+		iosys_map_set_vaddr_iomem(out_addr, (void __iomem *)addr);
+	else
+		iosys_map_set_vaddr(out_addr, addr);
+
 	return obj;
 }
 
@@ -1164,24 +1169,33 @@ static int wrap_ktime_compare(const void *A, const void *B)
 	return ktime_compare(*a, *b);
 }
 
-static void igt_memcpy_long(void *dst, const void *src, size_t size)
+static void igt_memcpy_long(struct iosys_map *dst, struct iosys_map *src,
+			    size_t size)
 {
-	unsigned long *tmp = dst;
-	const unsigned long *s = src;
+	unsigned long *tmp = dst->is_iomem ?
+				(unsigned long __force *)dst->vaddr_iomem :
+				dst->vaddr;
+	const unsigned long *s = src->is_iomem ?
+				(unsigned long __force *)src->vaddr_iomem :
+				src->vaddr;
 
 	size = size / sizeof(unsigned long);
 	while (size--)
 		*tmp++ = *s++;
 }
 
-static inline void igt_memcpy(void *dst, const void *src, size_t size)
+static inline void igt_memcpy(struct iosys_map *dst, struct iosys_map *src,
+			      size_t size)
 {
-	memcpy(dst, src, size);
+	memcpy(dst->is_iomem ? (void __force *)dst->vaddr_iomem : dst->vaddr,
+	       src->is_iomem ? (void __force *)src->vaddr_iomem : src->vaddr,
+	       size);
 }
 
-static inline void igt_memcpy_from_wc(void *dst, const void *src, size_t size)
+static inline void igt_memcpy_from_wc(struct iosys_map *dst, struct iosys_map *src,
+				      size_t size)
 {
-	i915_memcpy_from_wc(dst, src, size);
+	drm_memcpy_from_wc(dst, src, size);
 }
 
 static int _perf_memcpy(struct intel_memory_region *src_mr,
@@ -1191,7 +1205,8 @@ static int _perf_memcpy(struct intel_memory_region *src_mr,
 	struct drm_i915_private *i915 = src_mr->i915;
 	const struct {
 		const char *name;
-		void (*copy)(void *dst, const void *src, size_t size);
+		void (*copy)(struct iosys_map *dst, struct iosys_map *src,
+			     size_t size);
 		bool skip;
 	} tests[] = {
 		{
@@ -1205,11 +1220,11 @@ static int _perf_memcpy(struct intel_memory_region *src_mr,
 		{
 			"memcpy_from_wc",
 			igt_memcpy_from_wc,
-			!i915_has_memcpy_from_wc(),
+			!drm_memcpy_fastcopy_supported(),
 		},
 	};
 	struct drm_i915_gem_object *src, *dst;
-	void *src_addr, *dst_addr;
+	struct iosys_map src_addr, dst_addr;
 	int ret = 0;
 	int i;
 
@@ -1237,7 +1252,7 @@ static int _perf_memcpy(struct intel_memory_region *src_mr,
 
 			t0 = ktime_get();
 
-			tests[i].copy(dst_addr, src_addr, size);
+			tests[i].copy(&dst_addr, &src_addr, size);
 
 			t1 = ktime_get();
 			t[pass] = ktime_sub(t1, t0);
-- 
2.25.1