From 34cf01bc4b8021cef62cbd79224577c13d01b106 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 22 Nov 2010 10:48:51 +1000 Subject: [PATCH] drm/nouveau: allow gpuobj vinst to be a virtual address when necessary Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_drv.h | 1 + drivers/gpu/drm/nouveau/nv50_instmem.c | 25 +++++++++++++++++++++++-- 2 files changed, 24 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 4c5fc9c9912b..2cd87e6b54b7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -158,6 +158,7 @@ enum nouveau_flags { #define NVOBJ_FLAG_DONT_MAP (1 << 0) #define NVOBJ_FLAG_ZERO_ALLOC (1 << 1) #define NVOBJ_FLAG_ZERO_FREE (1 << 2) +#define NVOBJ_FLAG_VM (1 << 3) #define NVOBJ_CINST_GLOBAL 0xdeadbeef diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c index ec102bda8446..e2efd6f22ffb 100644 --- a/drivers/gpu/drm/nouveau/nv50_instmem.c +++ b/drivers/gpu/drm/nouveau/nv50_instmem.c @@ -302,6 +302,7 @@ nv50_instmem_resume(struct drm_device *dev) struct nv50_gpuobj_node { struct nouveau_vram *vram; + struct nouveau_vma chan_vma; u32 align; }; @@ -310,6 +311,7 @@ int nv50_instmem_get(struct nouveau_gpuobj *gpuobj, u32 size, u32 align) { struct drm_device *dev = gpuobj->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; struct nv50_gpuobj_node *node = NULL; int ret; @@ -328,8 +330,23 @@ nv50_instmem_get(struct nouveau_gpuobj *gpuobj, u32 size, u32 align) } gpuobj->vinst = node->vram->offset; - gpuobj->size = size; - gpuobj->node = node; + + if (gpuobj->flags & NVOBJ_FLAG_VM) { + ret = nouveau_vm_get(dev_priv->chan_vm, size, 12, + NV_MEM_ACCESS_RW | NV_MEM_ACCESS_SYS, + &node->chan_vma); + if (ret) { + nv50_vram_del(dev, &node->vram); + kfree(node); + return ret; + } + + nouveau_vm_map(&node->chan_vma, node->vram); + gpuobj->vinst = node->chan_vma.offset; + } + + gpuobj->size = size; + gpuobj->node = node; return 0; } @@ -342,6 +359,10 @@ nv50_instmem_put(struct nouveau_gpuobj *gpuobj) node = gpuobj->node; gpuobj->node = NULL; + if (node->chan_vma.node) { + nouveau_vm_unmap(&node->chan_vma); + nouveau_vm_put(&node->chan_vma); + } nv50_vram_del(dev, &node->vram); kfree(node); } -- 2.39.5