From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: 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. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- .../drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c | 174 ++++++++++----------- 1 file changed, 82 insertions(+), 92 deletions(-) (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c') diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c index b83550fa7..a1f8d65f0 100644 --- a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c @@ -21,31 +21,28 @@ * * Authors: Ben Skeggs */ -#include -#include -#include -#include +#include "priv.h" -#include #include - -struct nv50_mmu_priv { - struct nvkm_mmu base; -}; +#include +#include +#include static void -nv50_vm_map_pgt(struct nvkm_gpuobj *pgd, u32 pde, struct nvkm_gpuobj *pgt[2]) +nv50_vm_map_pgt(struct nvkm_gpuobj *pgd, u32 pde, struct nvkm_memory *pgt[2]) { u64 phys = 0xdeadcafe00000000ULL; u32 coverage = 0; if (pgt[0]) { - phys = 0x00000003 | pgt[0]->addr; /* present, 4KiB pages */ - coverage = (pgt[0]->size >> 3) << 12; + /* present, 4KiB pages */ + phys = 0x00000003 | nvkm_memory_addr(pgt[0]); + coverage = (nvkm_memory_size(pgt[0]) >> 3) << 12; } else if (pgt[1]) { - phys = 0x00000001 | pgt[1]->addr; /* present */ - coverage = (pgt[1]->size >> 3) << 16; + /* present, 64KiB pages */ + phys = 0x00000001 | nvkm_memory_addr(pgt[1]); + coverage = (nvkm_memory_size(pgt[1]) >> 3) << 16; } if (phys & 1) { @@ -57,8 +54,10 @@ nv50_vm_map_pgt(struct nvkm_gpuobj *pgd, u32 pde, struct nvkm_gpuobj *pgt[2]) phys |= 0x20; } - nv_wo32(pgd, (pde * 8) + 0, lower_32_bits(phys)); - nv_wo32(pgd, (pde * 8) + 4, upper_32_bits(phys)); + nvkm_kmap(pgd); + nvkm_wo32(pgd, (pde * 8) + 0, lower_32_bits(phys)); + nvkm_wo32(pgd, (pde * 8) + 4, upper_32_bits(phys)); + nvkm_done(pgd); } static inline u64 @@ -75,17 +74,18 @@ vm_addr(struct nvkm_vma *vma, u64 phys, u32 memtype, u32 target) } static void -nv50_vm_map(struct nvkm_vma *vma, struct nvkm_gpuobj *pgt, +nv50_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt, struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta) { + struct nvkm_ram *ram = vma->vm->mmu->subdev.device->fb->ram; u32 comp = (mem->memtype & 0x180) >> 7; u32 block, target; int i; /* IGPs don't have real VRAM, re-target to stolen system memory */ target = 0; - if (nvkm_fb(vma->vm->mmu)->ram->stolen) { - phys += nvkm_fb(vma->vm->mmu)->ram->stolen; + if (ram->stolen) { + phys += ram->stolen; target = 3; } @@ -93,6 +93,7 @@ nv50_vm_map(struct nvkm_vma *vma, struct nvkm_gpuobj *pgt, pte <<= 3; cnt <<= 3; + nvkm_kmap(pgt); while (cnt) { u32 offset_h = upper_32_bits(phys); u32 offset_l = lower_32_bits(phys); @@ -113,129 +114,118 @@ nv50_vm_map(struct nvkm_vma *vma, struct nvkm_gpuobj *pgt, } while (block) { - nv_wo32(pgt, pte + 0, offset_l); - nv_wo32(pgt, pte + 4, offset_h); + nvkm_wo32(pgt, pte + 0, offset_l); + nvkm_wo32(pgt, pte + 4, offset_h); pte += 8; block -= 8; } } + nvkm_done(pgt); } static void -nv50_vm_map_sg(struct nvkm_vma *vma, struct nvkm_gpuobj *pgt, +nv50_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt, struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list) { u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 3 : 2; pte <<= 3; + nvkm_kmap(pgt); while (cnt--) { u64 phys = vm_addr(vma, (u64)*list++, mem->memtype, target); - nv_wo32(pgt, pte + 0, lower_32_bits(phys)); - nv_wo32(pgt, pte + 4, upper_32_bits(phys)); + nvkm_wo32(pgt, pte + 0, lower_32_bits(phys)); + nvkm_wo32(pgt, pte + 4, upper_32_bits(phys)); pte += 8; } + nvkm_done(pgt); } static void -nv50_vm_unmap(struct nvkm_gpuobj *pgt, u32 pte, u32 cnt) +nv50_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt) { pte <<= 3; + nvkm_kmap(pgt); while (cnt--) { - nv_wo32(pgt, pte + 0, 0x00000000); - nv_wo32(pgt, pte + 4, 0x00000000); + nvkm_wo32(pgt, pte + 0, 0x00000000); + nvkm_wo32(pgt, pte + 4, 0x00000000); pte += 8; } + nvkm_done(pgt); } static void nv50_vm_flush(struct nvkm_vm *vm) { - struct nv50_mmu_priv *priv = (void *)vm->mmu; - struct nvkm_bar *bar = nvkm_bar(priv); - struct nvkm_engine *engine; + struct nvkm_mmu *mmu = vm->mmu; + struct nvkm_subdev *subdev = &mmu->subdev; + struct nvkm_device *device = subdev->device; int i, vme; - bar->flush(bar); - - mutex_lock(&nv_subdev(priv)->mutex); - for (i = 0; i < NVDEV_SUBDEV_NR; i++) { + mutex_lock(&subdev->mutex); + for (i = 0; i < NVKM_SUBDEV_NR; i++) { if (!atomic_read(&vm->engref[i])) continue; /* unfortunate hw bug workaround... */ - engine = nvkm_engine(priv, i); - if (engine && engine->tlb_flush) { - engine->tlb_flush(engine); - continue; + if (i == NVKM_ENGINE_GR && device->gr) { + int ret = nvkm_gr_tlb_flush(device->gr); + if (ret != -ENODEV) + continue; } switch (i) { - case NVDEV_ENGINE_GR : vme = 0x00; break; - case NVDEV_ENGINE_VP : - case NVDEV_ENGINE_MSPDEC: vme = 0x01; break; - case NVDEV_SUBDEV_BAR : vme = 0x06; break; - case NVDEV_ENGINE_MSPPP : - case NVDEV_ENGINE_MPEG : vme = 0x08; break; - case NVDEV_ENGINE_BSP : - case NVDEV_ENGINE_MSVLD : vme = 0x09; break; - case NVDEV_ENGINE_CIPHER: - case NVDEV_ENGINE_SEC : vme = 0x0a; break; - case NVDEV_ENGINE_CE0 : vme = 0x0d; break; + case NVKM_ENGINE_GR : vme = 0x00; break; + case NVKM_ENGINE_VP : + case NVKM_ENGINE_MSPDEC: vme = 0x01; break; + case NVKM_SUBDEV_BAR : vme = 0x06; break; + case NVKM_ENGINE_MSPPP : + case NVKM_ENGINE_MPEG : vme = 0x08; break; + case NVKM_ENGINE_BSP : + case NVKM_ENGINE_MSVLD : vme = 0x09; break; + case NVKM_ENGINE_CIPHER: + case NVKM_ENGINE_SEC : vme = 0x0a; break; + case NVKM_ENGINE_CE0 : vme = 0x0d; break; default: continue; } - nv_wr32(priv, 0x100c80, (vme << 16) | 1); - if (!nv_wait(priv, 0x100c80, 0x00000001, 0x00000000)) - nv_error(priv, "vm flush timeout: engine %d\n", vme); + nvkm_wr32(device, 0x100c80, (vme << 16) | 1); + if (nvkm_msec(device, 2000, + if (!(nvkm_rd32(device, 0x100c80) & 0x00000001)) + break; + ) < 0) + nvkm_error(subdev, "vm flush timeout: engine %d\n", vme); } - mutex_unlock(&nv_subdev(priv)->mutex); + mutex_unlock(&subdev->mutex); } static int -nv50_vm_create(struct nvkm_mmu *mmu, u64 offset, u64 length, - u64 mm_offset, struct nvkm_vm **pvm) +nv50_vm_create(struct nvkm_mmu *mmu, u64 offset, u64 length, u64 mm_offset, + struct lock_class_key *key, struct nvkm_vm **pvm) { - u32 block = (1 << (mmu->pgt_bits + 12)); + u32 block = (1 << (mmu->func->pgt_bits + 12)); if (block > length) block = length; - return nvkm_vm_create(mmu, offset, length, mm_offset, block, pvm); + return nvkm_vm_create(mmu, offset, length, mm_offset, block, key, pvm); } -static int -nv50_mmu_ctor(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *oclass, void *data, u32 size, - struct nvkm_object **pobject) +static const struct nvkm_mmu_func +nv50_mmu = { + .limit = (1ULL << 40), + .dma_bits = 40, + .pgt_bits = 29 - 12, + .spg_shift = 12, + .lpg_shift = 16, + .create = nv50_vm_create, + .map_pgt = nv50_vm_map_pgt, + .map = nv50_vm_map, + .map_sg = nv50_vm_map_sg, + .unmap = nv50_vm_unmap, + .flush = nv50_vm_flush, +}; + +int +nv50_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu) { - struct nv50_mmu_priv *priv; - int ret; - - ret = nvkm_mmu_create(parent, engine, oclass, "VM", "vm", &priv); - *pobject = nv_object(priv); - if (ret) - return ret; - - priv->base.limit = 1ULL << 40; - priv->base.dma_bits = 40; - priv->base.pgt_bits = 29 - 12; - priv->base.spg_shift = 12; - priv->base.lpg_shift = 16; - priv->base.create = nv50_vm_create; - priv->base.map_pgt = nv50_vm_map_pgt; - priv->base.map = nv50_vm_map; - priv->base.map_sg = nv50_vm_map_sg; - priv->base.unmap = nv50_vm_unmap; - priv->base.flush = nv50_vm_flush; - return 0; + return nvkm_mmu_new_(&nv50_mmu, device, index, pmmu); } - -struct nvkm_oclass -nv50_mmu_oclass = { - .handle = NV_SUBDEV(MMU, 0x50), - .ofuncs = &(struct nvkm_ofuncs) { - .ctor = nv50_mmu_ctor, - .dtor = _nvkm_mmu_dtor, - .init = _nvkm_mmu_init, - .fini = _nvkm_mmu_fini, - }, -}; -- cgit 1.2.3-korg