diff options
Diffstat (limited to 'kernel/include/irq.h')
| -rw-r--r-- | kernel/include/irq.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/kernel/include/irq.h b/kernel/include/irq.h new file mode 100644 index 0000000..d06ac5b --- /dev/null +++ b/kernel/include/irq.h @@ -0,0 +1,45 @@ +#ifndef _NV_VGPU_IRQ_H_ +#define _NV_VGPU_IRQ_H_ + +#include "nvidia-vgpu-vfio.h" + +#define NV_VGPU_MAX_MSI_VECTORS 32 + +struct nv_vgpu_msi_irq { + int virq; + u32 vector; + bool enabled; + struct eventfd_ctx *trigger; + struct irq_domain *domain; + struct msi_msg msg; +}; + +struct nv_vgpu_irq_ctx { + struct nv_vgpu_device *vgpu; + struct mutex lock; + struct nv_vgpu_msi_irq msis[NV_VGPU_MAX_MSI_VECTORS]; + int msi_count; + bool msi_enabled; + bool msix_enabled; +}; + +int nv_vgpu_irq_init(struct nv_vgpu_device *vgpu); +void nv_vgpu_irq_cleanup(struct nv_vgpu_device *vgpu); + +int nv_vgpu_irq_enable(struct nv_vgpu_device *vgpu, int irq_idx); +int nv_vgpu_irq_disable(struct nv_vgpu_device *vgpu, int irq_idx); + +int nv_vgpu_irq_setup_msi(struct nv_vgpu_device *vgpu, int num_vectors); +int nv_vgpu_irq_setup_msix(struct nv_vgpu_device *vgpu, int num_vectors); +void nv_vgpu_irq_teardown_msi(struct nv_vgpu_device *vgpu); +void nv_vgpu_irq_teardown_msix(struct nv_vgpu_device *vgpu); + +int nv_vgpu_irq_set_trigger(struct nv_vgpu_device *vgpu, int irq_idx, int fd); +int nv_vgpu_irq_get_virq(struct nv_vgpu_device *vgpu, int irq_idx); + +static inline struct nv_vgpu_irq_ctx *vgpu_to_irq_ctx(struct nv_vgpu_device *vgpu) +{ + return (struct nv_vgpu_irq_ctx *)vgpu->irq_ctx; +} + +#endif
\ No newline at end of file |