Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_GENERIC_MSI_H
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#define __ASM_GENERIC_MSI_H
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#include <linux/types.h>
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#ifdef CONFIG_GENERIC_MSI_IRQ
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#ifndef NUM_MSI_ALLOC_SCRATCHPAD_REGS
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# define NUM_MSI_ALLOC_SCRATCHPAD_REGS 2
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#endif
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struct msi_desc;
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/**
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* struct msi_alloc_info - Default structure for MSI interrupt allocation.
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* @desc: Pointer to msi descriptor
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* @hwirq: Associated hw interrupt number in the domain
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* @scratchpad: Storage for implementation specific scratch data
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*
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* Architectures can provide their own implementation by not including
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* asm-generic/msi.h into their arch specific header file.
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*/
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typedef struct msi_alloc_info {
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struct msi_desc *desc;
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irq_hw_number_t hwirq;
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unsigned long flags;
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union {
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unsigned long ul;
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void *ptr;
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} scratchpad[NUM_MSI_ALLOC_SCRATCHPAD_REGS];
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} msi_alloc_info_t;
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/* Device generating MSIs is proxying for another device */
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#define MSI_ALLOC_FLAGS_PROXY_DEVICE (1UL << 0)
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#define MSI_ALLOC_FLAGS_FIXED_MSG_DATA (1UL << 1)
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#define GENERIC_MSI_DOMAIN_OPS 1
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#endif /* CONFIG_GENERIC_MSI_IRQ */
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#endif
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