update drm to linux 5.7

adds kernel support for
amdgpu:		vega20, raven2, renoir, navi10, navi14
inteldrm:	icelake, tigerlake

Thanks to the OpenBSD Foundation for sponsoring this work, kettenis@ for
helping, patrick@ for helping adapt rockchip drm and many developers for
testing.

1 files changed, 21 insertions, 2 deletions

diff --git a/sys/dev/pci/drm/include/linux/kernel.h b/sys/dev/pci/drm/include/linux/kernel.h
index 99fa7b4bb8b..059680589db 100644
--- a/sys/dev/pci/drm/include/linux/kernel.h
+++ b/sys/dev/pci/drm/include/linux/kernel.h
@@ -36,8 +36,6 @@
 #define U64_C(x)	UINT64_C(x)
 #define U64_MAX		UINT64_MAX
 
-#define IS_ALIGNED(x, y)	(((x) & ((y) - 1)) == 0)
-
 #define ARRAY_SIZE nitems
 
 #define lower_32_bits(n)	((u32)(n))
@@ -66,6 +64,7 @@
 
 #define mult_frac(x, n, d) (((x) * (n)) / (d))
 
+#define roundup2(x, y) (((x) + ((y) - 1)) & (~((__typeof(x))(y) - 1)))
 #define round_up(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
 #define round_down(x, y) (((x) / (y)) * (y)) /* y is power of two */
 #define rounddown(x, y) (((x) / (y)) * (y)) /* arbitary y */
@@ -76,6 +75,9 @@
 #define DIV_ROUND_CLOSEST(x, y)	(((x) + ((y) / 2)) / (y))
 #define DIV_ROUND_CLOSEST_ULL(x, y)	DIV_ROUND_CLOSEST(x, y)
 
+#define IS_ALIGNED(x, y)	(((x) & ((y) - 1)) == 0)
+#define PTR_ALIGN(x, y)		((__typeof(x))roundup2((unsigned long)(x), (y)))
+
 static inline char *
 kasprintf(int flags, const char *fmt, ...)
 {
@@ -114,6 +116,18 @@ kvasprintf(int flags, const char *fmt, va_list ap)
 }
 
 static inline int
+vscnprintf(char *buf, size_t size, const char *fmt, va_list ap)
+{
+	int nc;
+
+	nc = vsnprintf(buf, size, fmt, ap);
+	if (nc > (size - 1))
+		return (size - 1);
+	else
+		return nc;
+}
+
+static inline int
 _in_dbg_master(void)
 {
 #ifdef DDB
@@ -129,8 +143,13 @@ _in_dbg_master(void)
 
 #define add_taint(x, y)
 #define TAINT_MACHINE_CHECK	0
+#define TAINT_WARN		1
 #define LOCKDEP_STILL_OK	0
 
 #define u64_to_user_ptr(x)	((void *)(uintptr_t)(x))
 
+#define _RET_IP_		__builtin_return_address(0)
+
+#define STUB() do { printf("%s: stub\n", __func__); } while(0)
+
 #endif