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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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dd5e6d6a3d
We can't use dev->mod_index for selecting the interrupt routing entry, because it's not an index into interrupt routing table. It will be even wrong on a machine with 2 CPUs (4 cores). But all needed information is contained in the PAT entries for the serial ports. mod[0] contains the iosapic address and mod_info has some indications for the interrupt input (at least it looks like it). This patch implements the searching for the right iosapic and uses this interrupt input information. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: <stable@vger.kernel.org> # 3.10 Signed-off-by: Helge Deller <deller@gmx.de>
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
#ifndef _ASM_PARISC_PARISC_DEVICE_H_
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#define _ASM_PARISC_PARISC_DEVICE_H_
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#include <linux/device.h>
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struct parisc_device {
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struct resource hpa; /* Hard Physical Address */
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struct parisc_device_id id;
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struct parisc_driver *driver; /* Driver for this device */
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char name[80]; /* The hardware description */
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int irq;
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int aux_irq; /* Some devices have a second IRQ */
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char hw_path; /* The module number on this bus */
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unsigned int num_addrs; /* some devices have additional address ranges. */
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unsigned long *addr; /* which will be stored here */
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#ifdef CONFIG_64BIT
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/* parms for pdc_pat_cell_module() call */
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unsigned long pcell_loc; /* Physical Cell location */
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unsigned long mod_index; /* PAT specific - Misc Module info */
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/* generic info returned from pdc_pat_cell_module() */
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unsigned long mod_info; /* PAT specific - Misc Module info */
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unsigned long pmod_loc; /* physical Module location */
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unsigned long mod0;
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#endif
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u64 dma_mask; /* DMA mask for I/O */
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struct device dev;
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};
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struct parisc_driver {
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struct parisc_driver *next;
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char *name;
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const struct parisc_device_id *id_table;
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int (*probe) (struct parisc_device *dev); /* New device discovered */
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int (*remove) (struct parisc_device *dev);
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struct device_driver drv;
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};
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#define to_parisc_device(d) container_of(d, struct parisc_device, dev)
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#define to_parisc_driver(d) container_of(d, struct parisc_driver, drv)
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#define parisc_parent(d) to_parisc_device(d->dev.parent)
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static inline const char *parisc_pathname(struct parisc_device *d)
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{
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return dev_name(&d->dev);
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}
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static inline void
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parisc_set_drvdata(struct parisc_device *d, void *p)
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{
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dev_set_drvdata(&d->dev, p);
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}
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static inline void *
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parisc_get_drvdata(struct parisc_device *d)
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{
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return dev_get_drvdata(&d->dev);
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}
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extern struct bus_type parisc_bus_type;
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int iosapic_serial_irq(struct parisc_device *dev);
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#endif /*_ASM_PARISC_PARISC_DEVICE_H_*/
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