tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2# Hexagon configuration
3comment "Linux Kernel Configuration for Hexagon"
4
5config HEXAGON
6 def_bool y
7 select ARCH_32BIT_OFF_T
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
9 select ARCH_NO_PREEMPT
10 select ARCH_WANT_FRAME_POINTERS
11 select DMA_GLOBAL_POOL
12 select HAVE_PAGE_SIZE_4KB
13 select HAVE_PAGE_SIZE_16KB
14 select HAVE_PAGE_SIZE_64KB
15 select HAVE_PAGE_SIZE_256KB
16 select FRAME_POINTER
17 # Other pending projects/to-do items.
18 # select HAVE_REGS_AND_STACK_ACCESS_API
19 # select HAVE_HW_BREAKPOINT if PERF_EVENTS
20 # select ARCH_HAS_CPU_IDLE_WAIT
21 # select GPIOLIB
22 # select HAVE_CLK
23 # select GENERIC_PENDING_IRQ if SMP
24 select GENERIC_ATOMIC64
25 select HAVE_PERF_EVENTS
26 # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
27 select GENERIC_ALLOCATOR
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_KGDB
31 select HAVE_ARCH_TRACEHOOK
32 select NEED_SG_DMA_LENGTH
33 select GENERIC_IOREMAP
34 select GENERIC_SMP_IDLE_THREAD
35 select STACKTRACE_SUPPORT
36 select GENERIC_CLOCKEVENTS_BROADCAST
37 select LOCK_MM_AND_FIND_VMA
38 select MODULES_USE_ELF_RELA
39 select GENERIC_CPU_DEVICES
40 select ARCH_WANT_LD_ORPHAN_WARN
41 select TRACE_IRQFLAGS_SUPPORT
42 help
43 Qualcomm Hexagon is a processor architecture designed for high
44 performance and low power across a wide variety of applications.
45
46config HEXAGON_PHYS_OFFSET
47 def_bool y
48 help
49 Platforms that don't load the kernel at zero set this.
50
51config LOCKDEP_SUPPORT
52 def_bool y
53
54config EARLY_PRINTK
55 def_bool y
56
57config MMU
58 def_bool y
59
60config NO_IOPORT_MAP
61 def_bool y
62
63config GENERIC_CSUM
64 def_bool y
65
66config GENERIC_HWEIGHT
67 def_bool y
68
69config STACKTRACE_SUPPORT
70 def_bool y
71 select STACKTRACE
72
73config GENERIC_BUG
74 def_bool y
75 depends on BUG
76
77menu "Machine selection"
78
79choice
80 prompt "System type"
81 default HEXAGON_COMET
82
83config HEXAGON_COMET
84 bool "Comet Board"
85 help
86 Support for the Comet platform.
87
88endchoice
89
90config HEXAGON_ARCH_VERSION
91 int "Architecture version"
92 default 2
93
94config CMDLINE
95 string "Default kernel command string"
96 default ""
97 help
98 On some platforms, there is currently no way for the boot loader
99 to pass arguments to the kernel. For these, you should supply some
100 command-line options at build time by entering them here. At a
101 minimum, you should specify the memory size and the root device
102 (e.g., mem=64M root=/dev/nfs).
103
104config SMP
105 bool "Multi-Processing support"
106 help
107 Enables SMP support in the kernel. If unsure, say "Y"
108
109config NR_CPUS
110 int "Maximum number of CPUs" if SMP
111 range 2 6 if SMP
112 default "1" if !SMP
113 default "6" if SMP
114 help
115 This allows you to specify the maximum number of CPUs which this
116 kernel will support. The maximum supported value is 6 and the
117 minimum value which makes sense is 2.
118
119 This is purely to save memory - each supported CPU adds
120 approximately eight kilobytes to the kernel image.
121
122source "kernel/Kconfig.hz"
123
124endmenu