diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (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/nvkm/subdev/instmem/base.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c | 306 |
1 files changed, 239 insertions, 67 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c index d16358cc6..1d7dd3829 100644 --- a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c @@ -23,124 +23,296 @@ */ #include "priv.h" -#include <core/engine.h> +#include <core/memory.h> +#include <subdev/bar.h> /****************************************************************************** * instmem object base implementation *****************************************************************************/ +#define nvkm_instobj(p) container_of((p), struct nvkm_instobj, memory) -void -_nvkm_instobj_dtor(struct nvkm_object *object) +struct nvkm_instobj { + struct nvkm_memory memory; + struct nvkm_memory *parent; + struct nvkm_instmem *imem; + struct list_head head; + u32 *suspend; + void __iomem *map; +}; + +static enum nvkm_memory_target +nvkm_instobj_target(struct nvkm_memory *memory) +{ + memory = nvkm_instobj(memory)->parent; + return nvkm_memory_target(memory); +} + +static u64 +nvkm_instobj_addr(struct nvkm_memory *memory) +{ + memory = nvkm_instobj(memory)->parent; + return nvkm_memory_addr(memory); +} + +static u64 +nvkm_instobj_size(struct nvkm_memory *memory) +{ + memory = nvkm_instobj(memory)->parent; + return nvkm_memory_size(memory); +} + +static void +nvkm_instobj_release(struct nvkm_memory *memory) +{ + struct nvkm_instobj *iobj = nvkm_instobj(memory); + nvkm_bar_flush(iobj->imem->subdev.device->bar); +} + +static void __iomem * +nvkm_instobj_acquire(struct nvkm_memory *memory) +{ + return nvkm_instobj(memory)->map; +} + +static u32 +nvkm_instobj_rd32(struct nvkm_memory *memory, u64 offset) +{ + return ioread32_native(nvkm_instobj(memory)->map + offset); +} + +static void +nvkm_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data) { - struct nvkm_instmem *imem = nvkm_instmem(object); - struct nvkm_instobj *iobj = (void *)object; + iowrite32_native(data, nvkm_instobj(memory)->map + offset); +} + +static void +nvkm_instobj_map(struct nvkm_memory *memory, struct nvkm_vma *vma, u64 offset) +{ + memory = nvkm_instobj(memory)->parent; + nvkm_memory_map(memory, vma, offset); +} - mutex_lock(&nv_subdev(imem)->mutex); +static void * +nvkm_instobj_dtor(struct nvkm_memory *memory) +{ + struct nvkm_instobj *iobj = nvkm_instobj(memory); + spin_lock(&iobj->imem->lock); list_del(&iobj->head); - mutex_unlock(&nv_subdev(imem)->mutex); + spin_unlock(&iobj->imem->lock); + nvkm_memory_del(&iobj->parent); + return iobj; +} + +const struct nvkm_memory_func +nvkm_instobj_func = { + .dtor = nvkm_instobj_dtor, + .target = nvkm_instobj_target, + .addr = nvkm_instobj_addr, + .size = nvkm_instobj_size, + .acquire = nvkm_instobj_acquire, + .release = nvkm_instobj_release, + .rd32 = nvkm_instobj_rd32, + .wr32 = nvkm_instobj_wr32, + .map = nvkm_instobj_map, +}; + +static void +nvkm_instobj_boot(struct nvkm_memory *memory, struct nvkm_vm *vm) +{ + memory = nvkm_instobj(memory)->parent; + nvkm_memory_boot(memory, vm); +} + +static void +nvkm_instobj_release_slow(struct nvkm_memory *memory) +{ + struct nvkm_instobj *iobj = nvkm_instobj(memory); + nvkm_instobj_release(memory); + nvkm_done(iobj->parent); +} + +static void __iomem * +nvkm_instobj_acquire_slow(struct nvkm_memory *memory) +{ + struct nvkm_instobj *iobj = nvkm_instobj(memory); + iobj->map = nvkm_kmap(iobj->parent); + if (iobj->map) + memory->func = &nvkm_instobj_func; + return iobj->map; +} + +static u32 +nvkm_instobj_rd32_slow(struct nvkm_memory *memory, u64 offset) +{ + struct nvkm_instobj *iobj = nvkm_instobj(memory); + return nvkm_ro32(iobj->parent, offset); +} - return nvkm_object_destroy(&iobj->base); +static void +nvkm_instobj_wr32_slow(struct nvkm_memory *memory, u64 offset, u32 data) +{ + struct nvkm_instobj *iobj = nvkm_instobj(memory); + return nvkm_wo32(iobj->parent, offset, data); } +const struct nvkm_memory_func +nvkm_instobj_func_slow = { + .dtor = nvkm_instobj_dtor, + .target = nvkm_instobj_target, + .addr = nvkm_instobj_addr, + .size = nvkm_instobj_size, + .boot = nvkm_instobj_boot, + .acquire = nvkm_instobj_acquire_slow, + .release = nvkm_instobj_release_slow, + .rd32 = nvkm_instobj_rd32_slow, + .wr32 = nvkm_instobj_wr32_slow, + .map = nvkm_instobj_map, +}; + int -nvkm_instobj_create_(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, int length, void **pobject) +nvkm_instobj_new(struct nvkm_instmem *imem, u32 size, u32 align, bool zero, + struct nvkm_memory **pmemory) { - struct nvkm_instmem *imem = nvkm_instmem(parent); + struct nvkm_memory *memory = NULL; struct nvkm_instobj *iobj; + u32 offset; int ret; - ret = nvkm_object_create_(parent, engine, oclass, NV_MEMOBJ_CLASS, - length, pobject); - iobj = *pobject; + ret = imem->func->memory_new(imem, size, align, zero, &memory); if (ret) - return ret; + goto done; - mutex_lock(&imem->base.mutex); - list_add(&iobj->head, &imem->list); - mutex_unlock(&imem->base.mutex); - return 0; + if (!imem->func->persistent) { + if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL))) { + ret = -ENOMEM; + goto done; + } + + nvkm_memory_ctor(&nvkm_instobj_func_slow, &iobj->memory); + iobj->parent = memory; + iobj->imem = imem; + spin_lock(&iobj->imem->lock); + list_add_tail(&iobj->head, &imem->list); + spin_unlock(&iobj->imem->lock); + memory = &iobj->memory; + } + + if (!imem->func->zero && zero) { + void __iomem *map = nvkm_kmap(memory); + if (unlikely(!map)) { + for (offset = 0; offset < size; offset += 4) + nvkm_wo32(memory, offset, 0x00000000); + } else { + memset_io(map, 0x00, size); + } + nvkm_done(memory); + } + +done: + if (ret) + nvkm_memory_del(&memory); + *pmemory = memory; + return ret; } /****************************************************************************** * instmem subdev base implementation *****************************************************************************/ -static int -nvkm_instmem_alloc(struct nvkm_instmem *imem, struct nvkm_object *parent, - u32 size, u32 align, struct nvkm_object **pobject) +u32 +nvkm_instmem_rd32(struct nvkm_instmem *imem, u32 addr) { - struct nvkm_instmem_impl *impl = (void *)imem->base.object.oclass; - struct nvkm_instobj_args args = { .size = size, .align = align }; - return nvkm_object_ctor(parent, &parent->engine->subdev.object, - impl->instobj, &args, sizeof(args), pobject); + return imem->func->rd32(imem, addr); } -int -_nvkm_instmem_fini(struct nvkm_object *object, bool suspend) +void +nvkm_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data) +{ + return imem->func->wr32(imem, addr, data); +} + +static int +nvkm_instmem_fini(struct nvkm_subdev *subdev, bool suspend) { - struct nvkm_instmem *imem = (void *)object; + struct nvkm_instmem *imem = nvkm_instmem(subdev); struct nvkm_instobj *iobj; - int i, ret = 0; + int i; + + if (imem->func->fini) + imem->func->fini(imem); if (suspend) { - mutex_lock(&imem->base.mutex); list_for_each_entry(iobj, &imem->list, head) { - iobj->suspend = vmalloc(iobj->size); - if (!iobj->suspend) { - ret = -ENOMEM; - break; - } - - for (i = 0; i < iobj->size; i += 4) - iobj->suspend[i / 4] = nv_ro32(iobj, i); + struct nvkm_memory *memory = iobj->parent; + u64 size = nvkm_memory_size(memory); + + iobj->suspend = vmalloc(size); + if (!iobj->suspend) + return -ENOMEM; + + for (i = 0; i < size; i += 4) + iobj->suspend[i / 4] = nvkm_ro32(memory, i); } - mutex_unlock(&imem->base.mutex); - if (ret) - return ret; } - return nvkm_subdev_fini(&imem->base, suspend); + return 0; } -int -_nvkm_instmem_init(struct nvkm_object *object) +static int +nvkm_instmem_oneinit(struct nvkm_subdev *subdev) { - struct nvkm_instmem *imem = (void *)object; - struct nvkm_instobj *iobj; - int ret, i; + struct nvkm_instmem *imem = nvkm_instmem(subdev); + if (imem->func->oneinit) + return imem->func->oneinit(imem); + return 0; +} - ret = nvkm_subdev_init(&imem->base); - if (ret) - return ret; +static int +nvkm_instmem_init(struct nvkm_subdev *subdev) +{ + struct nvkm_instmem *imem = nvkm_instmem(subdev); + struct nvkm_instobj *iobj; + int i; - mutex_lock(&imem->base.mutex); list_for_each_entry(iobj, &imem->list, head) { if (iobj->suspend) { - for (i = 0; i < iobj->size; i += 4) - nv_wo32(iobj, i, iobj->suspend[i / 4]); + struct nvkm_memory *memory = iobj->parent; + u64 size = nvkm_memory_size(memory); + for (i = 0; i < size; i += 4) + nvkm_wo32(memory, i, iobj->suspend[i / 4]); vfree(iobj->suspend); iobj->suspend = NULL; } } - mutex_unlock(&imem->base.mutex); + return 0; } -int -nvkm_instmem_create_(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, int length, void **pobject) +static void * +nvkm_instmem_dtor(struct nvkm_subdev *subdev) { - struct nvkm_instmem *imem; - int ret; + struct nvkm_instmem *imem = nvkm_instmem(subdev); + if (imem->func->dtor) + return imem->func->dtor(imem); + return imem; +} - ret = nvkm_subdev_create_(parent, engine, oclass, 0, "INSTMEM", - "instmem", length, pobject); - imem = *pobject; - if (ret) - return ret; +static const struct nvkm_subdev_func +nvkm_instmem = { + .dtor = nvkm_instmem_dtor, + .oneinit = nvkm_instmem_oneinit, + .init = nvkm_instmem_init, + .fini = nvkm_instmem_fini, +}; +void +nvkm_instmem_ctor(const struct nvkm_instmem_func *func, + struct nvkm_device *device, int index, + struct nvkm_instmem *imem) +{ + nvkm_subdev_ctor(&nvkm_instmem, device, index, 0, &imem->subdev); + imem->func = func; + spin_lock_init(&imem->lock); INIT_LIST_HEAD(&imem->list); - imem->alloc = nvkm_instmem_alloc; - return 0; } |