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/nv50.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/nv50.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c | 266 |
1 files changed, 173 insertions, 93 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c index 8404143f9..6d512c062 100644 --- a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c @@ -21,149 +21,229 @@ * * Authors: Ben Skeggs */ +#define nv50_instmem(p) container_of((p), struct nv50_instmem, base) #include "priv.h" +#include <core/memory.h> +#include <subdev/bar.h> #include <subdev/fb.h> +#include <subdev/mmu.h> -struct nv50_instmem_priv { +struct nv50_instmem { struct nvkm_instmem base; + unsigned long lock_flags; spinlock_t lock; u64 addr; }; -struct nv50_instobj_priv { - struct nvkm_instobj base; - struct nvkm_mem *mem; -}; - /****************************************************************************** * instmem object implementation *****************************************************************************/ +#define nv50_instobj(p) container_of((p), struct nv50_instobj, memory) -static u32 -nv50_instobj_rd32(struct nvkm_object *object, u64 offset) +struct nv50_instobj { + struct nvkm_memory memory; + struct nv50_instmem *imem; + struct nvkm_mem *mem; + struct nvkm_vma bar; + void *map; +}; + +static enum nvkm_memory_target +nv50_instobj_target(struct nvkm_memory *memory) +{ + return NVKM_MEM_TARGET_VRAM; +} + +static u64 +nv50_instobj_addr(struct nvkm_memory *memory) +{ + return nv50_instobj(memory)->mem->offset; +} + +static u64 +nv50_instobj_size(struct nvkm_memory *memory) +{ + return (u64)nv50_instobj(memory)->mem->size << NVKM_RAM_MM_SHIFT; +} + +static void +nv50_instobj_boot(struct nvkm_memory *memory, struct nvkm_vm *vm) +{ + struct nv50_instobj *iobj = nv50_instobj(memory); + struct nvkm_subdev *subdev = &iobj->imem->base.subdev; + struct nvkm_device *device = subdev->device; + u64 size = nvkm_memory_size(memory); + void __iomem *map; + int ret; + + iobj->map = ERR_PTR(-ENOMEM); + + ret = nvkm_vm_get(vm, size, 12, NV_MEM_ACCESS_RW, &iobj->bar); + if (ret == 0) { + map = ioremap(device->func->resource_addr(device, 3) + + (u32)iobj->bar.offset, size); + if (map) { + nvkm_memory_map(memory, &iobj->bar, 0); + iobj->map = map; + } else { + nvkm_warn(subdev, "PRAMIN ioremap failed\n"); + nvkm_vm_put(&iobj->bar); + } + } else { + nvkm_warn(subdev, "PRAMIN exhausted\n"); + } +} + +static void +nv50_instobj_release(struct nvkm_memory *memory) { - struct nv50_instmem_priv *priv = (void *)nvkm_instmem(object); - struct nv50_instobj_priv *node = (void *)object; + struct nv50_instmem *imem = nv50_instobj(memory)->imem; + spin_unlock_irqrestore(&imem->lock, imem->lock_flags); +} + +static void __iomem * +nv50_instobj_acquire(struct nvkm_memory *memory) +{ + struct nv50_instobj *iobj = nv50_instobj(memory); + struct nv50_instmem *imem = iobj->imem; + struct nvkm_bar *bar = imem->base.subdev.device->bar; + struct nvkm_vm *vm; unsigned long flags; - u64 base = (node->mem->offset + offset) & 0xffffff00000ULL; - u64 addr = (node->mem->offset + offset) & 0x000000fffffULL; + + if (!iobj->map && (vm = nvkm_bar_kmap(bar))) + nvkm_memory_boot(memory, vm); + if (!IS_ERR_OR_NULL(iobj->map)) + return iobj->map; + + spin_lock_irqsave(&imem->lock, flags); + imem->lock_flags = flags; + return NULL; +} + +static u32 +nv50_instobj_rd32(struct nvkm_memory *memory, u64 offset) +{ + struct nv50_instobj *iobj = nv50_instobj(memory); + struct nv50_instmem *imem = iobj->imem; + struct nvkm_device *device = imem->base.subdev.device; + u64 base = (iobj->mem->offset + offset) & 0xffffff00000ULL; + u64 addr = (iobj->mem->offset + offset) & 0x000000fffffULL; u32 data; - spin_lock_irqsave(&priv->lock, flags); - if (unlikely(priv->addr != base)) { - nv_wr32(priv, 0x001700, base >> 16); - priv->addr = base; + if (unlikely(imem->addr != base)) { + nvkm_wr32(device, 0x001700, base >> 16); + imem->addr = base; } - data = nv_rd32(priv, 0x700000 + addr); - spin_unlock_irqrestore(&priv->lock, flags); + data = nvkm_rd32(device, 0x700000 + addr); return data; } static void -nv50_instobj_wr32(struct nvkm_object *object, u64 offset, u32 data) +nv50_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data) { - struct nv50_instmem_priv *priv = (void *)nvkm_instmem(object); - struct nv50_instobj_priv *node = (void *)object; - unsigned long flags; - u64 base = (node->mem->offset + offset) & 0xffffff00000ULL; - u64 addr = (node->mem->offset + offset) & 0x000000fffffULL; - - spin_lock_irqsave(&priv->lock, flags); - if (unlikely(priv->addr != base)) { - nv_wr32(priv, 0x001700, base >> 16); - priv->addr = base; + struct nv50_instobj *iobj = nv50_instobj(memory); + struct nv50_instmem *imem = iobj->imem; + struct nvkm_device *device = imem->base.subdev.device; + u64 base = (iobj->mem->offset + offset) & 0xffffff00000ULL; + u64 addr = (iobj->mem->offset + offset) & 0x000000fffffULL; + + if (unlikely(imem->addr != base)) { + nvkm_wr32(device, 0x001700, base >> 16); + imem->addr = base; } - nv_wr32(priv, 0x700000 + addr, data); - spin_unlock_irqrestore(&priv->lock, flags); + nvkm_wr32(device, 0x700000 + addr, data); } static void -nv50_instobj_dtor(struct nvkm_object *object) +nv50_instobj_map(struct nvkm_memory *memory, struct nvkm_vma *vma, u64 offset) { - struct nv50_instobj_priv *node = (void *)object; - struct nvkm_fb *pfb = nvkm_fb(object); - pfb->ram->put(pfb, &node->mem); - nvkm_instobj_destroy(&node->base); + struct nv50_instobj *iobj = nv50_instobj(memory); + nvkm_vm_map_at(vma, offset, iobj->mem); } +static void * +nv50_instobj_dtor(struct nvkm_memory *memory) +{ + struct nv50_instobj *iobj = nv50_instobj(memory); + struct nvkm_ram *ram = iobj->imem->base.subdev.device->fb->ram; + if (!IS_ERR_OR_NULL(iobj->map)) { + nvkm_vm_put(&iobj->bar); + iounmap(iobj->map); + } + ram->func->put(ram, &iobj->mem); + return iobj; +} + +static const struct nvkm_memory_func +nv50_instobj_func = { + .dtor = nv50_instobj_dtor, + .target = nv50_instobj_target, + .size = nv50_instobj_size, + .addr = nv50_instobj_addr, + .boot = nv50_instobj_boot, + .acquire = nv50_instobj_acquire, + .release = nv50_instobj_release, + .rd32 = nv50_instobj_rd32, + .wr32 = nv50_instobj_wr32, + .map = nv50_instobj_map, +}; + static int -nv50_instobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, void *data, u32 size, - struct nvkm_object **pobject) +nv50_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero, + struct nvkm_memory **pmemory) { - struct nvkm_fb *pfb = nvkm_fb(parent); - struct nvkm_instobj_args *args = data; - struct nv50_instobj_priv *node; + struct nv50_instmem *imem = nv50_instmem(base); + struct nv50_instobj *iobj; + struct nvkm_ram *ram = imem->base.subdev.device->fb->ram; int ret; - args->size = max((args->size + 4095) & ~4095, (u32)4096); - args->align = max((args->align + 4095) & ~4095, (u32)4096); + if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL))) + return -ENOMEM; + *pmemory = &iobj->memory; - ret = nvkm_instobj_create(parent, engine, oclass, &node); - *pobject = nv_object(node); - if (ret) - return ret; + nvkm_memory_ctor(&nv50_instobj_func, &iobj->memory); + iobj->imem = imem; + + size = max((size + 4095) & ~4095, (u32)4096); + align = max((align + 4095) & ~4095, (u32)4096); - ret = pfb->ram->get(pfb, args->size, args->align, 0, 0x800, &node->mem); + ret = ram->func->get(ram, size, align, 0, 0x800, &iobj->mem); if (ret) return ret; - node->base.addr = node->mem->offset; - node->base.size = node->mem->size << 12; - node->mem->page_shift = 12; + iobj->mem->page_shift = 12; return 0; } -static struct nvkm_instobj_impl -nv50_instobj_oclass = { - .base.ofuncs = &(struct nvkm_ofuncs) { - .ctor = nv50_instobj_ctor, - .dtor = nv50_instobj_dtor, - .init = _nvkm_instobj_init, - .fini = _nvkm_instobj_fini, - .rd32 = nv50_instobj_rd32, - .wr32 = nv50_instobj_wr32, - }, -}; - /****************************************************************************** * instmem subdev implementation *****************************************************************************/ -static int -nv50_instmem_fini(struct nvkm_object *object, bool suspend) +static void +nv50_instmem_fini(struct nvkm_instmem *base) { - struct nv50_instmem_priv *priv = (void *)object; - priv->addr = ~0ULL; - return nvkm_instmem_fini(&priv->base, suspend); + nv50_instmem(base)->addr = ~0ULL; } -static int -nv50_instmem_ctor(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, void *data, u32 size, - struct nvkm_object **pobject) -{ - struct nv50_instmem_priv *priv; - int ret; +static const struct nvkm_instmem_func +nv50_instmem = { + .fini = nv50_instmem_fini, + .memory_new = nv50_instobj_new, + .persistent = false, + .zero = false, +}; - ret = nvkm_instmem_create(parent, engine, oclass, &priv); - *pobject = nv_object(priv); - if (ret) - return ret; +int +nv50_instmem_new(struct nvkm_device *device, int index, + struct nvkm_instmem **pimem) +{ + struct nv50_instmem *imem; - spin_lock_init(&priv->lock); + if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL))) + return -ENOMEM; + nvkm_instmem_ctor(&nv50_instmem, device, index, &imem->base); + spin_lock_init(&imem->lock); + *pimem = &imem->base; return 0; } - -struct nvkm_oclass * -nv50_instmem_oclass = &(struct nvkm_instmem_impl) { - .base.handle = NV_SUBDEV(INSTMEM, 0x50), - .base.ofuncs = &(struct nvkm_ofuncs) { - .ctor = nv50_instmem_ctor, - .dtor = _nvkm_instmem_dtor, - .init = _nvkm_instmem_init, - .fini = nv50_instmem_fini, - }, - .instobj = &nv50_instobj_oclass.base, -}.base; |