cregit-Linux how code gets into the kernel

Release 4.11 arch/arm/mach-footbridge/personal-pci.c

/*
 * linux/arch/arm/mach-footbridge/personal-pci.c
 *
 * PCI bios-type initialisation for PCI machines
 *
 * Bits taken from various places.
 */
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>

#include <asm/irq.h>
#include <asm/mach/pci.h>
#include <asm/mach-types.h>


static int irqmap_personal_server[] __initdata = {
	IRQ_IN0, IRQ_IN1, IRQ_IN2, IRQ_IN3, 0, 0, 0,
	IRQ_DOORBELLHOST, IRQ_DMA1, IRQ_DMA2, IRQ_PCI
};


static int __init personal_server_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { unsigned char line; pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line); if (line > 0x40 && line <= 0x5f) { /* line corresponds to the bit controlling this interrupt * in the footbridge. Ignore the first 8 interrupt bits, * look up the rest in the map. IN0 is bit number 8 */ return irqmap_personal_server[(line & 0x1f) - 8]; } else if (line == 0) { /* no interrupt */ return 0; } else return irqmap_personal_server[(line - 1) & 3]; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)8398.81%150.00%
Ralf Bächle11.19%150.00%
Total84100.00%2100.00%

static struct hw_pci personal_server_pci __initdata = { .map_irq = personal_server_map_irq, .nr_controllers = 1, .ops = &dc21285_ops, .setup = dc21285_setup, .preinit = dc21285_preinit, .postinit = dc21285_postinit, };
static int __init personal_pci_init(void) { if (machine_is_personal_server()) pci_common_init(&personal_server_pci); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Russell King23100.00%1100.00%
Total23100.00%1100.00%

subsys_initcall(personal_pci_init);

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)13969.50%114.29%
Russell King4924.50%342.86%
Linus Torvalds115.50%228.57%
Ralf Bächle10.50%114.29%
Total200100.00%7100.00%
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