1 /* SPDX-License-Identifier: MIT 2 * 3 * Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved. 4 */ 5 #include "nouveau_drv.h" 6 #include "nouveau_dma.h" 7 #include "nouveau_fence.h" 8 9 #include "nv50_display.h" 10 11 #include <nvif/push906f.h> 12 13 #include <nvhw/class/clc36f.h> 14 15 static int 16 gv100_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 17 { 18 struct nvif_push *push = &chan->chan.push; 19 int ret; 20 21 ret = PUSH_WAIT(push, 8); 22 if (ret) 23 return ret; 24 25 PUSH_MTHD(push, NVC36F, SEM_ADDR_LO, lower_32_bits(virtual), 26 SEM_ADDR_HI, upper_32_bits(virtual), 27 SEM_PAYLOAD_LO, sequence); 28 29 PUSH_MTHD(push, NVC36F, SEM_EXECUTE, 30 NVDEF(NVC36F, SEM_EXECUTE, OPERATION, RELEASE) | 31 NVDEF(NVC36F, SEM_EXECUTE, RELEASE_WFI, EN) | 32 NVDEF(NVC36F, SEM_EXECUTE, PAYLOAD_SIZE, 32BIT) | 33 NVDEF(NVC36F, SEM_EXECUTE, RELEASE_TIMESTAMP, DIS)); 34 35 PUSH_MTHD(push, NVC36F, NON_STALL_INTERRUPT, 0); 36 37 PUSH_KICK(push); 38 return 0; 39 } 40 41 static int 42 gv100_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence) 43 { 44 struct nvif_push *push = &chan->chan.push; 45 int ret; 46 47 ret = PUSH_WAIT(push, 6); 48 if (ret) 49 return ret; 50 51 PUSH_MTHD(push, NVC36F, SEM_ADDR_LO, lower_32_bits(virtual), 52 SEM_ADDR_HI, upper_32_bits(virtual), 53 SEM_PAYLOAD_LO, sequence); 54 55 PUSH_MTHD(push, NVC36F, SEM_EXECUTE, 56 NVDEF(NVC36F, SEM_EXECUTE, OPERATION, ACQ_CIRC_GEQ) | 57 NVDEF(NVC36F, SEM_EXECUTE, ACQUIRE_SWITCH_TSG, EN) | 58 NVDEF(NVC36F, SEM_EXECUTE, PAYLOAD_SIZE, 32BIT)); 59 60 PUSH_KICK(push); 61 return 0; 62 } 63 64 static int 65 gv100_fence_context_new(struct nouveau_channel *chan) 66 { 67 struct nv84_fence_chan *fctx; 68 int ret; 69 70 ret = nv84_fence_context_new(chan); 71 if (ret) 72 return ret; 73 74 fctx = chan->fence; 75 fctx->base.emit32 = gv100_fence_emit32; 76 fctx->base.sync32 = gv100_fence_sync32; 77 return 0; 78 } 79 80 int 81 gv100_fence_create(struct nouveau_drm *drm) 82 { 83 struct nv84_fence_priv *priv; 84 int ret; 85 86 ret = nv84_fence_create(drm); 87 if (ret) 88 return ret; 89 90 priv = drm->fence; 91 priv->base.context_new = gv100_fence_context_new; 92 return 0; 93 } 94