07021b4359
Highlights:
- Major rework of Book3S 64-bit exception vectors (Nicholas Piggin)
- Use gas sections for arranging exception vectors et. al.
- Large set of TM cleanups and selftests (Cyril Bur)
- Enable transactional memory (TM) lazily for userspace (Cyril Bur)
- Support for XZ compression in the zImage wrapper (Oliver O'Halloran)
- Add support for bpf constant blinding (Naveen N. Rao)
- Beginnings of upstream support for PA Semi Nemo motherboards (Darren Stevens)
Fixes:
- Ensure .mem(init|exit).text are within _stext/_etext (Michael Ellerman)
- xmon: Don't use ld on 32-bit (Michael Ellerman)
- vdso64: Use double word compare on pointers (Anton Blanchard)
- powerpc/nvram: Fix an incorrect partition merge (Pan Xinhui)
- powerpc: Fix usage of _PAGE_RO in hugepage (Christophe Leroy)
- powerpc/mm: Update FORCE_MAX_ZONEORDER range to allow hugetlb w/4K (Aneesh Kumar K.V)
- Fix memory leak in queue_hotplug_event() error path (Andrew Donnellan)
- Replay hypervisor maintenance interrupt first (Nicholas Piggin)
Cleanups & features:
- Sparse fixes/cleanups (Daniel Axtens)
- Preserve CFAR value on SLB miss caused by access to bogus address (Paul Mackerras)
- Radix MMU fixups for POWER9 (Aneesh Kumar K.V)
- Support for setting used_(vsr|vr|spe) in sigreturn path (for CRIU) (Simon Guo)
- Optimise syscall entry for virtual, relocatable case (Nicholas Piggin)
- Optimise MSR handling in exception handling (Nicholas Piggin)
- Support for kexec with Radix MMU (Benjamin Herrenschmidt)
- powernv EEH fixes (Russell Currey)
- Suprise PCI hotplug support for powernv (Gavin Shan)
- Endian/sparse fixes for powernv PCI (Gavin Shan)
- Defconfig updates (Anton Blanchard)
- Various performance optimisations (Anton Blanchard)
- Align hot loops of memset() and backwards_memcpy()
- During context switch, check before setting mm_cpumask
- Remove static branch prediction in atomic{, 64}_add_unless
- Only disable HAVE_EFFICIENT_UNALIGNED_ACCESS on POWER7 little endian
- Set default CPU type to POWER8 for little endian builds
- KVM: PPC: Book3S HV: Migrate pinned pages out of CMA (Balbir Singh)
- cxl: Flush PSL cache before resetting the adapter (Frederic Barrat)
- cxl: replace loop with for_each_child_of_node(), remove unneeded of_node_put() (Andrew Donnellan)
- Fix HV facility unavailable to use correct handler (Nicholas Piggin)
- Remove unnecessary syscall trampoline (Nicholas Piggin)
- fadump: Fix build break when CONFIG_PROC_VMCORE=n (Michael Ellerman)
- Quieten EEH message when no adapters are found (Anton Blanchard)
- powernv: Add PHB register dump debugfs handle (Russell Currey)
- Use kprobe blacklist for exception handlers & asm functions (Nicholas Piggin)
- Document the syscall ABI (Nicholas Piggin)
- MAINTAINERS: Update cxl maintainers (Michael Neuling)
- powerpc: Remove all usages of NO_IRQ (Michael Ellerman)
Minor cleanups:
- Andrew Donnellan, Christophe Leroy, Colin Ian King, Cyril Bur, Frederic Barrat,
Pan Xinhui, PrasannaKumar Muralidharan, Rui Teng, Simon Guo.
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Merge tag 'powerpc-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- Major rework of Book3S 64-bit exception vectors (Nicholas Piggin)
- Use gas sections for arranging exception vectors et. al.
- Large set of TM cleanups and selftests (Cyril Bur)
- Enable transactional memory (TM) lazily for userspace (Cyril Bur)
- Support for XZ compression in the zImage wrapper (Oliver
O'Halloran)
- Add support for bpf constant blinding (Naveen N. Rao)
- Beginnings of upstream support for PA Semi Nemo motherboards
(Darren Stevens)
Fixes:
- Ensure .mem(init|exit).text are within _stext/_etext (Michael
Ellerman)
- xmon: Don't use ld on 32-bit (Michael Ellerman)
- vdso64: Use double word compare on pointers (Anton Blanchard)
- powerpc/nvram: Fix an incorrect partition merge (Pan Xinhui)
- powerpc: Fix usage of _PAGE_RO in hugepage (Christophe Leroy)
- powerpc/mm: Update FORCE_MAX_ZONEORDER range to allow hugetlb w/4K
(Aneesh Kumar K.V)
- Fix memory leak in queue_hotplug_event() error path (Andrew
Donnellan)
- Replay hypervisor maintenance interrupt first (Nicholas Piggin)
Various performance optimisations (Anton Blanchard):
- Align hot loops of memset() and backwards_memcpy()
- During context switch, check before setting mm_cpumask
- Remove static branch prediction in atomic{, 64}_add_unless
- Only disable HAVE_EFFICIENT_UNALIGNED_ACCESS on POWER7 little
endian
- Set default CPU type to POWER8 for little endian builds
Cleanups & features:
- Sparse fixes/cleanups (Daniel Axtens)
- Preserve CFAR value on SLB miss caused by access to bogus address
(Paul Mackerras)
- Radix MMU fixups for POWER9 (Aneesh Kumar K.V)
- Support for setting used_(vsr|vr|spe) in sigreturn path (for CRIU)
(Simon Guo)
- Optimise syscall entry for virtual, relocatable case (Nicholas
Piggin)
- Optimise MSR handling in exception handling (Nicholas Piggin)
- Support for kexec with Radix MMU (Benjamin Herrenschmidt)
- powernv EEH fixes (Russell Currey)
- Suprise PCI hotplug support for powernv (Gavin Shan)
- Endian/sparse fixes for powernv PCI (Gavin Shan)
- Defconfig updates (Anton Blanchard)
- KVM: PPC: Book3S HV: Migrate pinned pages out of CMA (Balbir Singh)
- cxl: Flush PSL cache before resetting the adapter (Frederic Barrat)
- cxl: replace loop with for_each_child_of_node(), remove unneeded
of_node_put() (Andrew Donnellan)
- Fix HV facility unavailable to use correct handler (Nicholas
Piggin)
- Remove unnecessary syscall trampoline (Nicholas Piggin)
- fadump: Fix build break when CONFIG_PROC_VMCORE=n (Michael
Ellerman)
- Quieten EEH message when no adapters are found (Anton Blanchard)
- powernv: Add PHB register dump debugfs handle (Russell Currey)
- Use kprobe blacklist for exception handlers & asm functions
(Nicholas Piggin)
- Document the syscall ABI (Nicholas Piggin)
- MAINTAINERS: Update cxl maintainers (Michael Neuling)
- powerpc: Remove all usages of NO_IRQ (Michael Ellerman)
Minor cleanups:
- Andrew Donnellan, Christophe Leroy, Colin Ian King, Cyril Bur,
Frederic Barrat, Pan Xinhui, PrasannaKumar Muralidharan, Rui Teng,
Simon Guo"
* tag 'powerpc-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits)
powerpc/bpf: Add support for bpf constant blinding
powerpc/bpf: Implement support for tail calls
powerpc/bpf: Introduce accessors for using the tmp local stack space
powerpc/fadump: Fix build break when CONFIG_PROC_VMCORE=n
powerpc: tm: Enable transactional memory (TM) lazily for userspace
powerpc/tm: Add TM Unavailable Exception
powerpc: Remove do_load_up_transact_{fpu,altivec}
powerpc: tm: Rename transct_(*) to ck(\1)_state
powerpc: tm: Always use fp_state and vr_state to store live registers
selftests/powerpc: Add checks for transactional VSXs in signal contexts
selftests/powerpc: Add checks for transactional VMXs in signal contexts
selftests/powerpc: Add checks for transactional FPUs in signal contexts
selftests/powerpc: Add checks for transactional GPRs in signal contexts
selftests/powerpc: Check that signals always get delivered
selftests/powerpc: Add TM tcheck helpers in C
selftests/powerpc: Allow tests to extend their kill timeout
selftests/powerpc: Introduce GPR asm helper header file
selftests/powerpc: Move VMX stack frame macros to header file
selftests/powerpc: Rework FPU stack placement macros and move to header file
selftests/powerpc: Check for VSX preservation across userspace preemption
...
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
/*
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* Copyright 2014 IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_PNV_PCI_H
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#define _ASM_PNV_PCI_H
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#include <linux/pci.h>
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#include <linux/pci_hotplug.h>
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#include <linux/irq.h>
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#include <misc/cxl-base.h>
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#include <asm/opal-api.h>
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#define PCI_SLOT_ID_PREFIX (1UL << 63)
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#define PCI_SLOT_ID(phb_id, bdfn) \
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(PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
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extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id);
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extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len);
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extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
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extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
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extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
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struct opal_msg *msg);
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int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
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int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
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unsigned int virq);
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int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
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void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
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int pnv_cxl_get_irq_count(struct pci_dev *dev);
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struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev);
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int64_t pnv_opal_pci_msi_eoi(struct irq_chip *chip, unsigned int hw_irq);
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bool is_pnv_opal_msi(struct irq_chip *chip);
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#ifdef CONFIG_CXL_BASE
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int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
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struct pci_dev *dev, int num);
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void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
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struct pci_dev *dev);
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/* Support for the cxl kernel api on the real PHB (instead of vPHB) */
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int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable);
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bool pnv_pci_on_cxl_phb(struct pci_dev *dev);
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struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose);
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void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu);
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#endif
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struct pnv_php_slot {
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struct hotplug_slot slot;
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struct hotplug_slot_info slot_info;
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uint64_t id;
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char *name;
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int slot_no;
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struct kref kref;
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#define PNV_PHP_STATE_INITIALIZED 0
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#define PNV_PHP_STATE_REGISTERED 1
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#define PNV_PHP_STATE_POPULATED 2
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#define PNV_PHP_STATE_OFFLINE 3
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int state;
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int irq;
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struct workqueue_struct *wq;
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struct device_node *dn;
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struct pci_dev *pdev;
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struct pci_bus *bus;
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bool power_state_check;
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void *fdt;
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void *dt;
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struct of_changeset ocs;
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struct pnv_php_slot *parent;
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struct list_head children;
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struct list_head link;
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};
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extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn);
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extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot,
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uint8_t state);
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#endif
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