From 3607bfd398204ddb11f63c09b1cc608adf85f96c Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 19 May 2017 23:59:35 +1000 Subject: [PATCH] drm/nouveau/disp/nv50-: execute supervisor on its own workqueue Git-commit: 3607bfd398204ddb11f63c09b1cc608adf85f96c Patch-mainline: v4.13-rc1 References: bsc#1095094 Signed-off-by: Ben Skeggs Acked-by: Takashi Iwai --- drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c | 2 +- drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c | 10 ++++++++-- drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h | 1 + 3 files changed, 10 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c @@ -459,7 +459,7 @@ gf119_disp_intr(struct nv50_disp *disp) u32 stat = nvkm_rd32(device, 0x6100ac); if (stat & 0x00000007) { disp->super = (stat & 0x00000007); - schedule_work(&disp->supervisor); + queue_work(disp->wq, &disp->supervisor); nvkm_wr32(device, 0x6100ac, disp->super); stat &= ~0x00000007; } --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c @@ -111,6 +111,8 @@ nv50_disp_dtor_(struct nvkm_disp *base) { struct nv50_disp *disp = nv50_disp(base); nvkm_event_fini(&disp->uevent); + if (disp->wq) + destroy_workqueue(disp->wq); return disp; } @@ -136,7 +138,6 @@ nv50_disp_new_(const struct nv50_disp_fu if (!(disp = kzalloc(sizeof(*disp), GFP_KERNEL))) return -ENOMEM; - INIT_WORK(&disp->supervisor, func->super); disp->func = func; *pdisp = &disp->base; @@ -144,6 +145,11 @@ nv50_disp_new_(const struct nv50_disp_fu if (ret) return ret; + disp->wq = create_singlethread_workqueue("nvkm-disp"); + if (!disp->wq) + return -ENOMEM; + INIT_WORK(&disp->supervisor, func->super); + for (i = 0; func->head.new && i < heads; i++) { ret = func->head.new(&disp->base, i); if (ret) @@ -803,7 +809,7 @@ nv50_disp_intr(struct nv50_disp *disp) if (intr1 & 0x00000070) { disp->super = (intr1 & 0x00000070); - schedule_work(&disp->supervisor); + queue_work(disp->wq, &disp->supervisor); nvkm_wr32(device, 0x610024, disp->super); } } --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h @@ -12,6 +12,7 @@ struct nv50_disp { const struct nv50_disp_func *func; struct nvkm_disp base; + struct workqueue_struct *wq; struct work_struct supervisor; u32 super;