mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 01:55:35 +07:00
715855457e
Fixes kernel panic when vblank interrupt triggers before first sync to vblank request. (Besides init, remove some relevant leftovers from vblank rework) Reported-by: Ortwin Glück <odi@odi.ch> Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: stable@vger.kernel.org [3.5] Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#ifndef __NOUVEAU_SOFTWARE_H__
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#define __NOUVEAU_SOFTWARE_H__
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struct nouveau_software_priv {
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struct nouveau_exec_engine base;
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struct list_head vblank;
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spinlock_t peephole_lock;
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};
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struct nouveau_software_chan {
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struct list_head flip;
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struct {
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struct list_head list;
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u32 channel;
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u32 ctxdma;
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u32 offset;
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u32 value;
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u32 head;
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} vblank;
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};
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static inline void
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nouveau_software_context_new(struct nouveau_software_chan *pch)
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{
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INIT_LIST_HEAD(&pch->flip);
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INIT_LIST_HEAD(&pch->vblank.list);
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}
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static inline void
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nouveau_software_create(struct nouveau_software_priv *psw)
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{
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INIT_LIST_HEAD(&psw->vblank);
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spin_lock_init(&psw->peephole_lock);
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}
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static inline u16
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nouveau_software_class(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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if (dev_priv->card_type <= NV_04)
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return 0x006e;
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if (dev_priv->card_type <= NV_40)
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return 0x016e;
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if (dev_priv->card_type <= NV_50)
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return 0x506e;
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if (dev_priv->card_type <= NV_E0)
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return 0x906e;
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return 0x0000;
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}
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int nv04_software_create(struct drm_device *);
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int nv50_software_create(struct drm_device *);
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int nvc0_software_create(struct drm_device *);
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u64 nvc0_software_crtc(struct nouveau_channel *, int crtc);
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#endif
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