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
10 select DMA_GLOBAL_POOL
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_IOREMAP
29 select GENERIC_SMP_IDLE_THREAD
30 select STACKTRACE_SUPPORT
31 select GENERIC_CLOCKEVENTS_BROADCAST
32 select LOCK_MM_AND_FIND_VMA
33 select MODULES_USE_ELF_RELA
34 select GENERIC_CPU_DEVICES
35 select ARCH_WANT_LD_ORPHAN_WARN
36 select TRACE_IRQFLAGS_SUPPORT
38 Qualcomm Hexagon is a processor architecture designed for high
39 performance and low power across a wide variety of applications.
41 config HEXAGON_PHYS_OFFSET
44 Platforms that don't load the kernel at zero set this.
49 config LOCKDEP_SUPPORT
62 # Use the generic interrupt handling code in kernel/irq/:
64 config GENERIC_IRQ_PROBE
67 config GENERIC_HWEIGHT
70 config STACKTRACE_SUPPORT
78 menu "Machine selection"
87 Support for the Comet platform.
91 config HEXAGON_ARCH_VERSION
92 int "Architecture version"
96 string "Default kernel command string"
99 On some platforms, there is currently no way for the boot loader
100 to pass arguments to the kernel. For these, you should supply some
101 command-line options at build time by entering them here. At a
102 minimum, you should specify the memory size and the root device
103 (e.g., mem=64M root=/dev/nfs).
106 bool "Multi-Processing support"
108 Enables SMP support in the kernel. If unsure, say "Y"
111 int "Maximum number of CPUs" if SMP
116 This allows you to specify the maximum number of CPUs which this
117 kernel will support. The maximum supported value is 6 and the
118 minimum value which makes sense is 2.
120 This is purely to save memory - each supported CPU adds
121 approximately eight kilobytes to the kernel image.
124 prompt "Kernel page size"
125 default PAGE_SIZE_4KB
127 Changes the default page size; use with caution.
132 config PAGE_SIZE_16KB
135 config PAGE_SIZE_64KB
138 config PAGE_SIZE_256KB
143 source "kernel/Kconfig.hz"