From 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 15 Dec 2015 14:52:16 -0300 Subject: Linux-libre 4.3.2-gnu --- .../gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c | 394 +++++++++++---------- 1 file changed, 204 insertions(+), 190 deletions(-) (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c index dd0994d9e..cd7feb1b2 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c @@ -37,32 +37,27 @@ * to use more "relaxed" allocation parameters when using the DMA API, since we * never need a kernel mapping. */ +#define gk20a_instmem(p) container_of((p), struct gk20a_instmem, base) +#include "priv.h" -#include +#include #include -#include +#include +#include -#ifdef __KERNEL__ -#include -#include -#include -#endif +#define gk20a_instobj(p) container_of((p), struct gk20a_instobj, memory) -#include "priv.h" - -struct gk20a_instobj_priv { - struct nvkm_instobj base; - /* Must be second member here - see nouveau_gpuobj_map_vm() */ - struct nvkm_mem *mem; - /* Pointed by mem */ - struct nvkm_mem _mem; +struct gk20a_instobj { + struct nvkm_memory memory; + struct gk20a_instmem *imem; + struct nvkm_mem mem; }; /* * Used for objects allocated using the DMA API */ struct gk20a_instobj_dma { - struct gk20a_instobj_priv base; + struct gk20a_instobj base; void *cpuaddr; dma_addr_t handle; @@ -73,14 +68,15 @@ struct gk20a_instobj_dma { * Used for objects flattened using the IOMMU API */ struct gk20a_instobj_iommu { - struct gk20a_instobj_priv base; + struct gk20a_instobj base; /* array of base.mem->size pages */ struct page *pages[]; }; -struct gk20a_instmem_priv { +struct gk20a_instmem { struct nvkm_instmem base; + unsigned long lock_flags; spinlock_t lock; u64 addr; @@ -94,6 +90,42 @@ struct gk20a_instmem_priv { struct dma_attrs attrs; }; +static enum nvkm_memory_target +gk20a_instobj_target(struct nvkm_memory *memory) +{ + return NVKM_MEM_TARGET_HOST; +} + +static u64 +gk20a_instobj_addr(struct nvkm_memory *memory) +{ + return gk20a_instobj(memory)->mem.offset; + +} + +static u64 +gk20a_instobj_size(struct nvkm_memory *memory) +{ + return (u64)gk20a_instobj(memory)->mem.size << 12; +} + +static void __iomem * +gk20a_instobj_acquire(struct nvkm_memory *memory) +{ + struct gk20a_instmem *imem = gk20a_instobj(memory)->imem; + unsigned long flags; + spin_lock_irqsave(&imem->lock, flags); + imem->lock_flags = flags; + return NULL; +} + +static void +gk20a_instobj_release(struct nvkm_memory *memory) +{ + struct gk20a_instmem *imem = gk20a_instobj(memory)->imem; + spin_unlock_irqrestore(&imem->lock, imem->lock_flags); +} + /* * Use PRAMIN to read/write data and avoid coherency issues. * PRAMIN uses the GPU path and ensures data will always be coherent. @@ -104,160 +136,170 @@ struct gk20a_instmem_priv { */ static u32 -gk20a_instobj_rd32(struct nvkm_object *object, u64 offset) +gk20a_instobj_rd32(struct nvkm_memory *memory, u64 offset) { - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(object); - struct gk20a_instobj_priv *node = (void *)object; - unsigned long flags; - u64 base = (node->mem->offset + offset) & 0xffffff00000ULL; - u64 addr = (node->mem->offset + offset) & 0x000000fffffULL; + struct gk20a_instobj *node = gk20a_instobj(memory); + struct gk20a_instmem *imem = node->imem; + struct nvkm_device *device = imem->base.subdev.device; + u64 base = (node->mem.offset + offset) & 0xffffff00000ULL; + u64 addr = (node->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 -gk20a_instobj_wr32(struct nvkm_object *object, u64 offset, u32 data) +gk20a_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data) { - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(object); - struct gk20a_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 gk20a_instobj *node = gk20a_instobj(memory); + struct gk20a_instmem *imem = node->imem; + struct nvkm_device *device = imem->base.subdev.device; + u64 base = (node->mem.offset + offset) & 0xffffff00000ULL; + u64 addr = (node->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 +gk20a_instobj_map(struct nvkm_memory *memory, struct nvkm_vma *vma, u64 offset) +{ + struct gk20a_instobj *node = gk20a_instobj(memory); + nvkm_vm_map_at(vma, offset, &node->mem); } static void -gk20a_instobj_dtor_dma(struct gk20a_instobj_priv *_node) +gk20a_instobj_dtor_dma(struct gk20a_instobj *_node) { struct gk20a_instobj_dma *node = (void *)_node; - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(node); - struct device *dev = nv_device_base(nv_device(priv)); + struct gk20a_instmem *imem = _node->imem; + struct device *dev = imem->base.subdev.device->dev; if (unlikely(!node->cpuaddr)) return; - dma_free_attrs(dev, _node->mem->size << PAGE_SHIFT, node->cpuaddr, - node->handle, &priv->attrs); + dma_free_attrs(dev, _node->mem.size << PAGE_SHIFT, node->cpuaddr, + node->handle, &imem->attrs); } static void -gk20a_instobj_dtor_iommu(struct gk20a_instobj_priv *_node) +gk20a_instobj_dtor_iommu(struct gk20a_instobj *_node) { struct gk20a_instobj_iommu *node = (void *)_node; - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(node); + struct gk20a_instmem *imem = _node->imem; struct nvkm_mm_node *r; int i; - if (unlikely(list_empty(&_node->mem->regions))) + if (unlikely(list_empty(&_node->mem.regions))) return; - r = list_first_entry(&_node->mem->regions, struct nvkm_mm_node, + r = list_first_entry(&_node->mem.regions, struct nvkm_mm_node, rl_entry); /* clear bit 34 to unmap pages */ - r->offset &= ~BIT(34 - priv->iommu_pgshift); + r->offset &= ~BIT(34 - imem->iommu_pgshift); /* Unmap pages from GPU address space and free them */ - for (i = 0; i < _node->mem->size; i++) { - iommu_unmap(priv->domain, - (r->offset + i) << priv->iommu_pgshift, PAGE_SIZE); + for (i = 0; i < _node->mem.size; i++) { + iommu_unmap(imem->domain, + (r->offset + i) << imem->iommu_pgshift, PAGE_SIZE); __free_page(node->pages[i]); } /* Release area from GPU address space */ - mutex_lock(priv->mm_mutex); - nvkm_mm_free(priv->mm, &r); - mutex_unlock(priv->mm_mutex); + mutex_lock(imem->mm_mutex); + nvkm_mm_free(imem->mm, &r); + mutex_unlock(imem->mm_mutex); } -static void -gk20a_instobj_dtor(struct nvkm_object *object) +static void * +gk20a_instobj_dtor(struct nvkm_memory *memory) { - struct gk20a_instobj_priv *node = (void *)object; - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(node); + struct gk20a_instobj *node = gk20a_instobj(memory); + struct gk20a_instmem *imem = node->imem; - if (priv->domain) + if (imem->domain) gk20a_instobj_dtor_iommu(node); else gk20a_instobj_dtor_dma(node); - nvkm_instobj_destroy(&node->base); + return node; } +static const struct nvkm_memory_func +gk20a_instobj_func = { + .dtor = gk20a_instobj_dtor, + .target = gk20a_instobj_target, + .addr = gk20a_instobj_addr, + .size = gk20a_instobj_size, + .acquire = gk20a_instobj_acquire, + .release = gk20a_instobj_release, + .rd32 = gk20a_instobj_rd32, + .wr32 = gk20a_instobj_wr32, + .map = gk20a_instobj_map, +}; + static int -gk20a_instobj_ctor_dma(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, u32 npages, u32 align, - struct gk20a_instobj_priv **_node) +gk20a_instobj_ctor_dma(struct gk20a_instmem *imem, u32 npages, u32 align, + struct gk20a_instobj **_node) { struct gk20a_instobj_dma *node; - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(parent); - struct device *dev = nv_device_base(nv_device(parent)); - int ret; + struct nvkm_subdev *subdev = &imem->base.subdev; + struct device *dev = subdev->device->dev; - ret = nvkm_instobj_create_(parent, engine, oclass, sizeof(*node), - (void **)&node); + if (!(node = kzalloc(sizeof(*node), GFP_KERNEL))) + return -ENOMEM; *_node = &node->base; - if (ret) - return ret; node->cpuaddr = dma_alloc_attrs(dev, npages << PAGE_SHIFT, &node->handle, GFP_KERNEL, - &priv->attrs); + &imem->attrs); if (!node->cpuaddr) { - nv_error(priv, "cannot allocate DMA memory\n"); + nvkm_error(subdev, "cannot allocate DMA memory\n"); return -ENOMEM; } /* alignment check */ if (unlikely(node->handle & (align - 1))) - nv_warn(priv, "memory not aligned as requested: %pad (0x%x)\n", - &node->handle, align); + nvkm_warn(subdev, + "memory not aligned as requested: %pad (0x%x)\n", + &node->handle, align); /* present memory for being mapped using small pages */ node->r.type = 12; node->r.offset = node->handle >> 12; node->r.length = (npages << PAGE_SHIFT) >> 12; - node->base._mem.offset = node->handle; + node->base.mem.offset = node->handle; - INIT_LIST_HEAD(&node->base._mem.regions); - list_add_tail(&node->r.rl_entry, &node->base._mem.regions); + INIT_LIST_HEAD(&node->base.mem.regions); + list_add_tail(&node->r.rl_entry, &node->base.mem.regions); return 0; } static int -gk20a_instobj_ctor_iommu(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, u32 npages, u32 align, - struct gk20a_instobj_priv **_node) +gk20a_instobj_ctor_iommu(struct gk20a_instmem *imem, u32 npages, u32 align, + struct gk20a_instobj **_node) { struct gk20a_instobj_iommu *node; - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(parent); + struct nvkm_subdev *subdev = &imem->base.subdev; struct nvkm_mm_node *r; int ret; int i; - ret = nvkm_instobj_create_(parent, engine, oclass, - sizeof(*node) + sizeof(node->pages[0]) * npages, - (void **)&node); + if (!(node = kzalloc(sizeof(*node) + + sizeof( node->pages[0]) * npages, GFP_KERNEL))) + return -ENOMEM; *_node = &node->base; - if (ret) - return ret; /* Allocate backing memory */ for (i = 0; i < npages; i++) { @@ -270,48 +312,48 @@ gk20a_instobj_ctor_iommu(struct nvkm_object *parent, struct nvkm_object *engine, node->pages[i] = p; } - mutex_lock(priv->mm_mutex); + mutex_lock(imem->mm_mutex); /* Reserve area from GPU address space */ - ret = nvkm_mm_head(priv->mm, 0, 1, npages, npages, - align >> priv->iommu_pgshift, &r); - mutex_unlock(priv->mm_mutex); + ret = nvkm_mm_head(imem->mm, 0, 1, npages, npages, + align >> imem->iommu_pgshift, &r); + mutex_unlock(imem->mm_mutex); if (ret) { - nv_error(priv, "virtual space is full!\n"); + nvkm_error(subdev, "virtual space is full!\n"); goto free_pages; } /* Map into GPU address space */ for (i = 0; i < npages; i++) { struct page *p = node->pages[i]; - u32 offset = (r->offset + i) << priv->iommu_pgshift; + u32 offset = (r->offset + i) << imem->iommu_pgshift; - ret = iommu_map(priv->domain, offset, page_to_phys(p), + ret = iommu_map(imem->domain, offset, page_to_phys(p), PAGE_SIZE, IOMMU_READ | IOMMU_WRITE); if (ret < 0) { - nv_error(priv, "IOMMU mapping failure: %d\n", ret); + nvkm_error(subdev, "IOMMU mapping failure: %d\n", ret); while (i-- > 0) { offset -= PAGE_SIZE; - iommu_unmap(priv->domain, offset, PAGE_SIZE); + iommu_unmap(imem->domain, offset, PAGE_SIZE); } goto release_area; } } /* Bit 34 tells that an address is to be resolved through the IOMMU */ - r->offset |= BIT(34 - priv->iommu_pgshift); + r->offset |= BIT(34 - imem->iommu_pgshift); - node->base._mem.offset = ((u64)r->offset) << priv->iommu_pgshift; + node->base.mem.offset = ((u64)r->offset) << imem->iommu_pgshift; - INIT_LIST_HEAD(&node->base._mem.regions); - list_add_tail(&r->rl_entry, &node->base._mem.regions); + INIT_LIST_HEAD(&node->base.mem.regions); + list_add_tail(&r->rl_entry, &node->base.mem.regions); return 0; release_area: - mutex_lock(priv->mm_mutex); - nvkm_mm_free(priv->mm, &r); - mutex_unlock(priv->mm_mutex); + mutex_lock(imem->mm_mutex); + nvkm_mm_free(imem->mm, &r); + mutex_unlock(imem->mm_mutex); free_pages: for (i = 0; i < npages && node->pages[i] != NULL; i++) @@ -321,120 +363,92 @@ free_pages: } static int -gk20a_instobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, void *data, u32 _size, - struct nvkm_object **pobject) +gk20a_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero, + struct nvkm_memory **pmemory) { - struct nvkm_instobj_args *args = data; - struct gk20a_instmem_priv *priv = (void *)nvkm_instmem(parent); - struct gk20a_instobj_priv *node; - u32 size, align; + struct gk20a_instmem *imem = gk20a_instmem(base); + struct gk20a_instobj *node = NULL; + struct nvkm_subdev *subdev = &imem->base.subdev; int ret; - nv_debug(parent, "%s (%s): size: %x align: %x\n", __func__, - priv->domain ? "IOMMU" : "DMA", args->size, args->align); + nvkm_debug(subdev, "%s (%s): size: %x align: %x\n", __func__, + imem->domain ? "IOMMU" : "DMA", size, align); /* Round size and align to page bounds */ - size = max(roundup(args->size, PAGE_SIZE), PAGE_SIZE); - align = max(roundup(args->align, PAGE_SIZE), PAGE_SIZE); + size = max(roundup(size, PAGE_SIZE), PAGE_SIZE); + align = max(roundup(align, PAGE_SIZE), PAGE_SIZE); - if (priv->domain) - ret = gk20a_instobj_ctor_iommu(parent, engine, oclass, - size >> PAGE_SHIFT, align, &node); + if (imem->domain) + ret = gk20a_instobj_ctor_iommu(imem, size >> PAGE_SHIFT, + align, &node); else - ret = gk20a_instobj_ctor_dma(parent, engine, oclass, - size >> PAGE_SHIFT, align, &node); - *pobject = nv_object(node); + ret = gk20a_instobj_ctor_dma(imem, size >> PAGE_SHIFT, + align, &node); + *pmemory = node ? &node->memory : NULL; if (ret) return ret; - node->mem = &node->_mem; + nvkm_memory_ctor(&gk20a_instobj_func, &node->memory); + node->imem = imem; /* present memory for being mapped using small pages */ - node->mem->size = size >> 12; - node->mem->memtype = 0; - node->mem->page_shift = 12; - - node->base.addr = node->mem->offset; - node->base.size = size; + node->mem.size = size >> 12; + node->mem.memtype = 0; + node->mem.page_shift = 12; - nv_debug(parent, "alloc size: 0x%x, align: 0x%x, gaddr: 0x%llx\n", - size, align, node->mem->offset); + nvkm_debug(subdev, "alloc size: 0x%x, align: 0x%x, gaddr: 0x%llx\n", + size, align, node->mem.offset); return 0; } -static struct nvkm_instobj_impl -gk20a_instobj_oclass = { - .base.ofuncs = &(struct nvkm_ofuncs) { - .ctor = gk20a_instobj_ctor, - .dtor = gk20a_instobj_dtor, - .init = _nvkm_instobj_init, - .fini = _nvkm_instobj_fini, - .rd32 = gk20a_instobj_rd32, - .wr32 = gk20a_instobj_wr32, - }, -}; - - - -static int -gk20a_instmem_fini(struct nvkm_object *object, bool suspend) +static void +gk20a_instmem_fini(struct nvkm_instmem *base) { - struct gk20a_instmem_priv *priv = (void *)object; - priv->addr = ~0ULL; - return nvkm_instmem_fini(&priv->base, suspend); + gk20a_instmem(base)->addr = ~0ULL; } -static int -gk20a_instmem_ctor(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, void *data, u32 size, - struct nvkm_object **pobject) -{ - struct gk20a_instmem_priv *priv; - struct nouveau_platform_device *plat; - int ret; +static const struct nvkm_instmem_func +gk20a_instmem = { + .fini = gk20a_instmem_fini, + .memory_new = gk20a_instobj_new, + .persistent = true, + .zero = false, +}; - ret = nvkm_instmem_create(parent, engine, oclass, &priv); - *pobject = nv_object(priv); - if (ret) - return ret; +int +gk20a_instmem_new(struct nvkm_device *device, int index, + struct nvkm_instmem **pimem) +{ + struct nvkm_device_tegra *tdev = device->func->tegra(device); + struct gk20a_instmem *imem; - spin_lock_init(&priv->lock); + if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL))) + return -ENOMEM; + nvkm_instmem_ctor(&gk20a_instmem, device, index, &imem->base); + spin_lock_init(&imem->lock); + *pimem = &imem->base; - plat = nv_device_to_platform(nv_device(parent)); - if (plat->gpu->iommu.domain) { - priv->domain = plat->gpu->iommu.domain; - priv->mm = plat->gpu->iommu.mm; - priv->iommu_pgshift = plat->gpu->iommu.pgshift; - priv->mm_mutex = &plat->gpu->iommu.mutex; + if (tdev->iommu.domain) { + imem->domain = tdev->iommu.domain; + imem->mm = &tdev->iommu.mm; + imem->iommu_pgshift = tdev->iommu.pgshift; + imem->mm_mutex = &tdev->iommu.mutex; - nv_info(priv, "using IOMMU\n"); + nvkm_info(&imem->base.subdev, "using IOMMU\n"); } else { - init_dma_attrs(&priv->attrs); + init_dma_attrs(&imem->attrs); /* * We will access instmem through PRAMIN and thus do not need a * consistent CPU pointer or kernel mapping */ - dma_set_attr(DMA_ATTR_NON_CONSISTENT, &priv->attrs); - dma_set_attr(DMA_ATTR_WEAK_ORDERING, &priv->attrs); - dma_set_attr(DMA_ATTR_WRITE_COMBINE, &priv->attrs); - dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &priv->attrs); + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &imem->attrs); + dma_set_attr(DMA_ATTR_WEAK_ORDERING, &imem->attrs); + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &imem->attrs); + dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &imem->attrs); - nv_info(priv, "using DMA API\n"); + nvkm_info(&imem->base.subdev, "using DMA API\n"); } return 0; } - -struct nvkm_oclass * -gk20a_instmem_oclass = &(struct nvkm_instmem_impl) { - .base.handle = NV_SUBDEV(INSTMEM, 0xea), - .base.ofuncs = &(struct nvkm_ofuncs) { - .ctor = gk20a_instmem_ctor, - .dtor = _nvkm_instmem_dtor, - .init = _nvkm_instmem_init, - .fini = gk20a_instmem_fini, - }, - .instobj = &gk20a_instobj_oclass.base, -}.base; -- cgit v1.2.3-54-g00ecf