diff options
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/hmi.h | 45 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/paca.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pci.h | 3 |
3 files changed, 51 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/hmi.h b/arch/powerpc/include/asm/hmi.h new file mode 100644 index 000000000000..88b4901ac4ee --- /dev/null +++ b/arch/powerpc/include/asm/hmi.h @@ -0,0 +1,45 @@ +/* + * Hypervisor Maintenance Interrupt header file. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. + * + * Copyright 2015 IBM Corporation + * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> + */ + +#ifndef __ASM_PPC64_HMI_H__ +#define __ASM_PPC64_HMI_H__ + +#ifdef CONFIG_PPC_BOOK3S_64 + +#define CORE_TB_RESYNC_REQ_BIT 63 +#define MAX_SUBCORE_PER_CORE 4 + +/* + * sibling_subcore_state structure is used to co-ordinate all threads + * during HMI to avoid TB corruption. This structure is allocated once + * per each core and shared by all threads on that core. + */ +struct sibling_subcore_state { + unsigned long flags; + u8 in_guest[MAX_SUBCORE_PER_CORE]; +}; + +extern void wait_for_subcore_guest_exit(void); +extern void wait_for_tb_resync(void); +#else +static inline void wait_for_subcore_guest_exit(void) { } +static inline void wait_for_tb_resync(void) { } +#endif +#endif /* __ASM_PPC64_HMI_H__ */ diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index ad171e979ab0..148303e7771f 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -26,6 +26,7 @@ #include <asm/kvm_book3s_asm.h> #endif #include <asm/accounting.h> +#include <asm/hmi.h> register struct paca_struct *local_paca asm("r13"); @@ -182,6 +183,11 @@ struct paca_struct { */ u16 in_mce; u8 hmi_event_available; /* HMI event is available */ + /* + * Bitmap for sibling subcore status. See kvm/book3s_hv_ras.c for + * more details + */ + struct sibling_subcore_state *sibling_subcore_state; #endif /* Stuff for accurate time accounting */ diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index a6f3ac0d4602..e9bd6cf0212f 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -136,9 +136,6 @@ extern pgprot_t pci_phys_mem_access_prot(struct file *file, pgprot_t prot); #define HAVE_ARCH_PCI_RESOURCE_TO_USER -extern void pci_resource_to_user(const struct pci_dev *dev, int bar, - const struct resource *rsrc, - resource_size_t *start, resource_size_t *end); extern resource_size_t pcibios_io_space_offset(struct pci_controller *hose); extern void pcibios_setup_bus_devices(struct pci_bus *bus); |