diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/core/os.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/core/os.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/os.h b/drivers/gpu/drm/nouveau/include/nvkm/core/os.h new file mode 100644 index 000000000..3fd5c007a --- /dev/null +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/os.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: MIT */ +#ifndef __NVKM_OS_H__ +#define __NVKM_OS_H__ +#include <nvif/os.h> + +#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) + +struct nvkm_blob { + void *data; + u32 size; +}; + +static inline void +nvkm_blob_dtor(struct nvkm_blob *blob) +{ + kfree(blob->data); + blob->data = NULL; + blob->size = 0; +} + +#define nvkm_list_find_next(p,h,m,c) ({ \ + typeof(p) _p = NULL; \ + list_for_each_entry_continue(p, (h), m) { \ + if (c) { \ + _p = p; \ + break; \ + } \ + } \ + _p; \ +}) +#define nvkm_list_find(p,h,m,c) \ + (p = container_of((h), typeof(*p), m), nvkm_list_find_next(p, (h), m, (c))) +#define nvkm_list_foreach(p,h,m,c) \ + for (p = nvkm_list_find(p, (h), m, (c)); p; p = nvkm_list_find_next(p, (h), m, (c))) +#endif |