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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h')
-rw-r--r--kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h b/kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
new file mode 100644
index 000000000..9363b839a
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
@@ -0,0 +1,53 @@
+#ifndef __NVKM_MEMORY_H__
+#define __NVKM_MEMORY_H__
+#include <core/os.h>
+struct nvkm_device;
+struct nvkm_vma;
+struct nvkm_vm;
+
+enum nvkm_memory_target {
+ NVKM_MEM_TARGET_INST,
+ NVKM_MEM_TARGET_VRAM,
+ NVKM_MEM_TARGET_HOST,
+};
+
+struct nvkm_memory {
+ const struct nvkm_memory_func *func;
+};
+
+struct nvkm_memory_func {
+ void *(*dtor)(struct nvkm_memory *);
+ enum nvkm_memory_target (*target)(struct nvkm_memory *);
+ u64 (*addr)(struct nvkm_memory *);
+ u64 (*size)(struct nvkm_memory *);
+ void (*boot)(struct nvkm_memory *, struct nvkm_vm *);
+ void __iomem *(*acquire)(struct nvkm_memory *);
+ void (*release)(struct nvkm_memory *);
+ u32 (*rd32)(struct nvkm_memory *, u64 offset);
+ void (*wr32)(struct nvkm_memory *, u64 offset, u32 data);
+ void (*map)(struct nvkm_memory *, struct nvkm_vma *, u64 offset);
+};
+
+void nvkm_memory_ctor(const struct nvkm_memory_func *, struct nvkm_memory *);
+int nvkm_memory_new(struct nvkm_device *, enum nvkm_memory_target,
+ u64 size, u32 align, bool zero, struct nvkm_memory **);
+void nvkm_memory_del(struct nvkm_memory **);
+#define nvkm_memory_target(p) (p)->func->target(p)
+#define nvkm_memory_addr(p) (p)->func->addr(p)
+#define nvkm_memory_size(p) (p)->func->size(p)
+#define nvkm_memory_boot(p,v) (p)->func->boot((p),(v))
+#define nvkm_memory_map(p,v,o) (p)->func->map((p),(v),(o))
+
+/* accessor macros - kmap()/done() must bracket use of the other accessor
+ * macros to guarantee correct behaviour across all chipsets
+ */
+#define nvkm_kmap(o) (o)->func->acquire(o)
+#define nvkm_ro32(o,a) (o)->func->rd32((o), (a))
+#define nvkm_wo32(o,a,d) (o)->func->wr32((o), (a), (d))
+#define nvkm_mo32(o,a,m,d) ({ \
+ u32 _addr = (a), _data = nvkm_ro32((o), _addr); \
+ nvkm_wo32((o), _addr, (_data & ~(m)) | (d)); \
+ _data; \
+})
+#define nvkm_done(o) (o)->func->release(o)
+#endif