1 # SPDX-License-Identifier: GPL-2.0
2 # Hexagon configuration
3 comment "Linux Kernel Configuration for Hexagon"
7 select ARCH_32BIT_OFF_T
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
11 # Other pending projects/to-do items.
12 # select HAVE_REGS_AND_STACK_ACCESS_API
13 # select HAVE_HW_BREAKPOINT if PERF_EVENTS
14 # select ARCH_HAS_CPU_IDLE_WAIT
17 # select GENERIC_PENDING_IRQ if SMP
18 select GENERIC_ATOMIC64
19 select HAVE_PERF_EVENTS
20 # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
21 select GENERIC_ALLOCATOR
22 select GENERIC_IRQ_SHOW
24 select HAVE_ARCH_TRACEHOOK
25 select NEED_SG_DMA_LENGTH
28 select GENERIC_SMP_IDLE_THREAD
29 select STACKTRACE_SUPPORT
30 select GENERIC_CLOCKEVENTS
31 select GENERIC_CLOCKEVENTS_BROADCAST
32 select MODULES_USE_ELF_RELA
33 select GENERIC_CPU_DEVICES
35 select ARCH_WANT_LD_ORPHAN_WARN
37 Qualcomm Hexagon is a processor architecture designed for high
38 performance and low power across a wide variety of applications.
40 config HEXAGON_PHYS_OFFSET
43 Platforms that don't load the kernel at zero set this.
48 config LOCKDEP_SUPPORT
57 config TRACE_IRQFLAGS_SUPPORT
64 # Use the generic interrupt handling code in kernel/irq/:
66 config GENERIC_IRQ_PROBE
69 config GENERIC_HWEIGHT
72 config STACKTRACE_SUPPORT
80 menu "Machine selection"
89 Support for the Comet platform.
93 config HEXAGON_ARCH_VERSION
94 int "Architecture version"
98 string "Default kernel command string"
101 On some platforms, there is currently no way for the boot loader
102 to pass arguments to the kernel. For these, you should supply some
103 command-line options at build time by entering them here. At a
104 minimum, you should specify the memory size and the root device
105 (e.g., mem=64M root=/dev/nfs).
108 bool "Multi-Processing support"
110 Enables SMP support in the kernel. If unsure, say "Y"
113 int "Maximum number of CPUs" if SMP
118 This allows you to specify the maximum number of CPUs which this
119 kernel will support. The maximum supported value is 6 and the
120 minimum value which makes sense is 2.
122 This is purely to save memory - each supported CPU adds
123 approximately eight kilobytes to the kernel image.
126 prompt "Kernel page size"
127 default PAGE_SIZE_4KB
129 Changes the default page size; use with caution.
134 config PAGE_SIZE_16KB
137 config PAGE_SIZE_64KB
140 config PAGE_SIZE_256KB
145 source "kernel/Kconfig.hz"