summaryrefslogblamecommitdiff
path: root/kernel/irq/Kconfig
blob: 09bef82d74cb9f25517d781a5cc1070c72b482c1 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
                                                       
                            
            








                                                   

                                             
           
 
                                 
           
 
                                             

                                                
                      
           
 
                                            
                        
            
 
                                                 
                       
           
 
                                                      
                          
            
 
                                       
                        
           
 
                                                                      
                         
           
 
                                               
                          
           
 
                              


                           















                                                                            
# Select this to activate the generic irq options below
config HAVE_GENERIC_HARDIRQS
	bool

if HAVE_GENERIC_HARDIRQS
menu "IRQ subsystem"
#
# Interrupt subsystem related configuration options
#
config GENERIC_HARDIRQS
       def_bool y

# Select this to disable the deprecated stuff
config GENERIC_HARDIRQS_NO_DEPRECATED
       bool

config GENERIC_HARDIRQS_NO_COMPAT
       bool

# Options selectable by the architecture code

# Make sparse irq Kconfig switch below available
config HAVE_SPARSE_IRQ
       bool

# Enable the generic irq autoprobe mechanism
config GENERIC_IRQ_PROBE
	bool

# Use the generic /proc/interrupts implementation
config GENERIC_IRQ_SHOW
       bool

# Support for delayed migration from interrupt context
config GENERIC_PENDING_IRQ
	bool

# Alpha specific irq affinity mechanism
config AUTO_IRQ_AFFINITY
       bool

# Tasklet based software resend for pending interrupts on enable_irq()
config HARDIRQS_SW_RESEND
       bool

# Preflow handler support for fasteoi (sparc64)
config IRQ_PREFLOW_FASTEOI
       bool

# Support forced irq threading
config IRQ_FORCED_THREADING
       bool

config SPARSE_IRQ
	bool "Support sparse irq numbering"
	depends on HAVE_SPARSE_IRQ
	---help---

	  Sparse irq numbering is useful for distro kernels that want
	  to define a high CONFIG_NR_CPUS value but still want to have
	  low kernel memory footprint on smaller machines.

	  ( Sparse irqs can also be beneficial on NUMA boxes, as they spread
	    out the interrupt descriptors in a more NUMA-friendly way. )

	  If you don't know what to do here, say N.

endmenu
endif