diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2017-10-31 20:56:19 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-11-02 06:32:22 +0300 |
| commit | c09597f083960cea492e1d658b9039b06d8a6839 (patch) | |
| tree | ff139e3b599e3c50eb43ade65470bf99f2bad323 /drivers/gpu/drm/nouveau/include | |
| parent | 997a89003c2d950466bc289147ffb823c0c51fb0 (diff) | |
| download | linux-c09597f083960cea492e1d658b9039b06d8a6839.tar.xz | |
drm/nouveau/core/memory: add some useful accessor macros
Adds support for 64-bit writes, and optimised filling of buffers with
fixed 32/64-bit values.
These will all be used by the upcoming MMU changes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/include')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvif/os.h | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/core/memory.h | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/core/os.h | 20 |
3 files changed, 47 insertions, 15 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvif/os.h b/drivers/gpu/drm/nouveau/include/nvif/os.h index 9fcab67c8557..5efdf80d5abc 100644 --- a/drivers/gpu/drm/nouveau/include/nvif/os.h +++ b/drivers/gpu/drm/nouveau/include/nvif/os.h @@ -33,18 +33,4 @@ #include <soc/tegra/fuse.h> #include <soc/tegra/pmc.h> - -#ifndef ioread32_native -#ifdef __BIG_ENDIAN -#define ioread16_native ioread16be -#define iowrite16_native iowrite16be -#define ioread32_native ioread32be -#define iowrite32_native iowrite32be -#else /* def __BIG_ENDIAN */ -#define ioread16_native ioread16 -#define iowrite16_native iowrite16 -#define ioread32_native ioread32 -#define iowrite32_native iowrite32 -#endif /* def __BIG_ENDIAN else */ -#endif /* !ioread32_native */ #endif diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h b/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h index 9c9c400bea98..13ebf4da2b96 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h @@ -65,6 +65,8 @@ void nvkm_memory_tags_put(struct nvkm_memory *, struct nvkm_device *, * macros to guarantee correct behaviour across all chipsets */ #define nvkm_kmap(o) (o)->func->acquire(o) +#define nvkm_done(o) (o)->func->release(o) + #define nvkm_ro32(o,a) (o)->ptrs->rd32((o), (a)) #define nvkm_wo32(o,a,d) (o)->ptrs->wr32((o), (a), (d)) #define nvkm_mo32(o,a,m,d) ({ \ @@ -72,5 +74,29 @@ void nvkm_memory_tags_put(struct nvkm_memory *, struct nvkm_device *, nvkm_wo32((o), _addr, (_data & ~(m)) | (d)); \ _data; \ }) -#define nvkm_done(o) (o)->func->release(o) + +#define nvkm_wo64(o,a,d) do { \ + u64 __a = (a), __d = (d); \ + nvkm_wo32((o), __a + 0, lower_32_bits(__d)); \ + nvkm_wo32((o), __a + 4, upper_32_bits(__d)); \ +} while(0) + +#define nvkm_fill(t,s,o,a,d,c) do { \ + u64 _a = (a), _c = (c), _d = (d), _o = _a >> s, _s = _c << s; \ + u##t __iomem *_m = nvkm_kmap(o); \ + if (likely(_m)) { \ + if (_d) { \ + while (_c--) \ + iowrite##t##_native(_d, &_m[_o++]); \ + } else { \ + memset_io(&_m[_o], _d, _s); \ + } \ + } else { \ + for (; _c; _c--, _a += BIT(s)) \ + nvkm_wo##t((o), _a, _d); \ + } \ + nvkm_done(o); \ +} while(0) +#define nvkm_fo32(o,a,d,c) nvkm_fill(32, 2, (o), (a), (d), (c)) +#define nvkm_fo64(o,a,d,c) nvkm_fill(64, 3, (o), (a), (d), (c)) #endif diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/os.h b/drivers/gpu/drm/nouveau/include/nvkm/core/os.h index cfd9ed361c44..70c5c47300b4 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/core/os.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/os.h @@ -2,4 +2,24 @@ #define __NVKM_OS_H__ #include <nvif/os.h> #define nvkm_vmm nvkm_vm + +#ifdef __BIG_ENDIAN +#define ioread16_native ioread16be +#define iowrite16_native iowrite16be +#define ioread32_native ioread32be +#define iowrite32_native iowrite32be +#else +#define ioread16_native ioread16 +#define iowrite16_native iowrite16 +#define ioread32_native ioread32 +#define iowrite32_native iowrite32 +#endif + +#define iowrite64_native(v,p) do { \ + u32 __iomem *_p = (u32 __iomem *)(p); \ + u64 _v = (v); \ + iowrite32_native(lower_32_bits(_v), &_p[0]); \ + iowrite32_native(upper_32_bits(_v), &_p[1]); \ +} while(0) + #endif |