[src/trunk]: src/sys/external/bsd/drm2/dist/drm/nouveau/include/nvif Attempt ...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3758da5e75ff
branches:  trunk
changeset: 992703:3758da5e75ff
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 07:32:59 2018 +0000

description:
Attempt to work out nvif iomem crud.

diffstat:

 sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/driver.h |  11 +-
 sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/object.h |  96 +++++++++++-
 2 files changed, 105 insertions(+), 2 deletions(-)

diffs (159 lines):

diff -r a19df1316b20 -r 3758da5e75ff sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/driver.h
--- a/sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/driver.h      Mon Aug 27 07:32:50 2018 +0000
+++ b/sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/driver.h      Mon Aug 27 07:32:59 2018 +0000
@@ -1,8 +1,13 @@
-/*     $NetBSD: driver.h,v 1.2 2018/08/27 04:58:30 riastradh Exp $     */
+/*     $NetBSD: driver.h,v 1.3 2018/08/27 07:32:59 riastradh Exp $     */
 
 #ifndef __NVIF_DRIVER_H__
 #define __NVIF_DRIVER_H__
 
+#ifdef __NetBSD__
+#  define      __nvif_iomem    volatile
+#  define      __iomem         __nvif_iomem
+#endif
+
 struct nvif_driver {
        const char *name;
        int (*init)(const char *name, u64 device, const char *cfg,
@@ -16,6 +21,10 @@
        bool keep;
 };
 
+#ifdef __NetBSD__
+#  undef       __iomem
+#endif
+
 extern const struct nvif_driver nvif_driver_nvkm;
 extern const struct nvif_driver nvif_driver_drm;
 extern const struct nvif_driver nvif_driver_lib;
diff -r a19df1316b20 -r 3758da5e75ff sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/object.h
--- a/sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/object.h      Mon Aug 27 07:32:50 2018 +0000
+++ b/sys/external/bsd/drm2/dist/drm/nouveau/include/nvif/object.h      Mon Aug 27 07:32:59 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: object.h,v 1.2 2018/08/27 04:58:30 riastradh Exp $     */
+/*     $NetBSD: object.h,v 1.3 2018/08/27 07:32:59 riastradh Exp $     */
 
 #ifndef __NVIF_OBJECT_H__
 #define __NVIF_OBJECT_H__
@@ -11,6 +11,56 @@
        int maxver;
 };
 
+#ifdef __NetBSD__
+#  define      __nvif_iomem    volatile
+#  define      __iomem         __nvif_iomem
+#  define      ioread8         nvif_object_ioread8
+#  define      ioread16        nvif_object_ioread32
+#  define      ioread32        nvif_object_ioread16
+#  define      iowrite8        nvif_object_iowrite8
+#  define      iowrite16       nvif_object_iowrite16
+#  define      iowrite32       nvif_object_iowrite32
+static inline uint8_t
+ioread8(const void __iomem *p)
+{
+       uint8_t v = *(const uint8_t __iomem *)p;
+       membar_consumer();
+       return v;
+}
+static inline uint8_t
+ioread16(const void __iomem *p)
+{
+       uint16_t v = *(const uint16_t __iomem *)p;
+       membar_consumer();
+       return v;
+}
+static inline uint8_t
+ioread32(const void __iomem *p)
+{
+       uint32_t v = *(const uint32_t __iomem *)p;
+       membar_consumer();
+       return v;
+}
+static inline void
+iowrite8(uint8_t v, void __iomem *p)
+{
+       membar_producer();
+       *(uint8_t __iomem *)p = v;
+}
+static inline void
+iowrite16(uint16_t v, void __iomem *p)
+{
+       membar_producer();
+       *(uint16_t __iomem *)p = v;
+}
+static inline void
+iowrite32(uint32_t v, void __iomem *p)
+{
+       membar_producer();
+       *(uint32_t __iomem *)p = v;
+}
+#endif
+
 struct nvif_object {
        struct nvif_client *client;
        u32 handle;
@@ -53,12 +103,46 @@
        else                                                                   \
                nvif_object_wr(_object, (b), (c), (d));                        \
 })
+#ifdef __NetBSD__
+/* Force expansion now.  */
+static inline uint8_t
+nvif_rd08(struct nvif_object *obj, uint64_t offset)
+{
+       return nvif_rd(obj, ioread8, 1, offset);
+}
+static inline uint8_t
+nvif_rd16(struct nvif_object *obj, uint64_t offset)
+{
+       return nvif_rd(obj, ioread16, 2, offset);
+}
+static inline uint8_t
+nvif_rd32(struct nvif_object *obj, uint64_t offset)
+{
+       return nvif_rd(obj, ioread32, 4, offset);
+}
+static inline void
+nvif_wr08(struct nvif_object *obj, uint64_t offset, uint8_t v)
+{
+       nvif_wr(obj, iowrite8, 1, offset, v);
+}
+static inline void
+nvif_wr16(struct nvif_object *obj, uint64_t offset, uint16_t v)
+{
+       nvif_wr(obj, iowrite16, 2, offset, v);
+}
+static inline void
+nvif_wr32(struct nvif_object *obj, uint64_t offset, uint32_t v)
+{
+       nvif_wr(obj, iowrite32, 4, offset, v);
+}
+#else
 #define nvif_rd08(a,b) ({ ((u8)nvif_rd((a), ioread8, 1, (b))); })
 #define nvif_rd16(a,b) ({ ((u16)nvif_rd((a), ioread16_native, 2, (b))); })
 #define nvif_rd32(a,b) ({ ((u32)nvif_rd((a), ioread32_native, 4, (b))); })
 #define nvif_wr08(a,b,c) nvif_wr((a), iowrite8, 1, (b), (u8)(c))
 #define nvif_wr16(a,b,c) nvif_wr((a), iowrite16_native, 2, (b), (u16)(c))
 #define nvif_wr32(a,b,c) nvif_wr((a), iowrite32_native, 4, (b), (u32)(c))
+#endif
 #define nvif_mask(a,b,c,d) ({                                                  \
        struct nvif_object *__object = (a);                                    \
        u32 _addr = (b), _data = nvif_rd32(__object, _addr);                   \
@@ -66,6 +150,16 @@
        _data;                                                                 \
 })
 
+#ifdef __NetBSD__
+#  undef       __iomem
+#  undef       ioread8
+#  undef       ioread16
+#  undef       ioread32
+#  undef       iowrite8
+#  undef       iowrite16
+#  undef       iowrite32
+#endif
+
 #define nvif_mthd(a,b,c,d) nvif_object_mthd((a), (b), (c), (d))
 
 /*XXX*/