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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
e95bf452 RK |
2 | # Hexagon configuration |
3 | comment "Linux Kernel Configuration for Hexagon" | |
4 | ||
5 | config HEXAGON | |
6 | def_bool y | |
e0a9317d | 7 | select ARCH_HAS_SYNC_DMA_FOR_DEVICE |
87a4c375 | 8 | select ARCH_NO_PREEMPT |
e95bf452 | 9 | select HAVE_OPROFILE |
e95bf452 RK |
10 | # Other pending projects/to-do items. |
11 | # select HAVE_REGS_AND_STACK_ACCESS_API | |
12 | # select HAVE_HW_BREAKPOINT if PERF_EVENTS | |
13 | # select ARCH_HAS_CPU_IDLE_WAIT | |
d4f80b81 | 14 | # select GPIOLIB |
e95bf452 | 15 | # select HAVE_CLK |
e95bf452 RK |
16 | # select GENERIC_PENDING_IRQ if SMP |
17 | select GENERIC_ATOMIC64 | |
18 | select HAVE_PERF_EVENTS | |
e95bf452 RK |
19 | # GENERIC_ALLOCATOR is used by dma_alloc_coherent() |
20 | select GENERIC_ALLOCATOR | |
21 | select GENERIC_IRQ_SHOW | |
22 | select HAVE_ARCH_KGDB | |
23 | select HAVE_ARCH_TRACEHOOK | |
426dcd4b | 24 | select ARCH_DISCARD_MEMBLOCK |
86596f0a | 25 | select NEED_SG_DMA_LENGTH |
ce816fa8 | 26 | select NO_IOPORT_MAP |
4673ca8e | 27 | select GENERIC_IOMAP |
3b0132ce | 28 | select GENERIC_SMP_IDLE_THREAD |
5042ab91 | 29 | select STACKTRACE_SUPPORT |
24a6f35e AMG |
30 | select GENERIC_CLOCKEVENTS |
31 | select GENERIC_CLOCKEVENTS_BROADCAST | |
786d35d4 | 32 | select MODULES_USE_ELF_RELA |
53debcd5 | 33 | select GENERIC_CPU_DEVICES |
bc3ec75d | 34 | select DMA_DIRECT_OPS |
e95bf452 RK |
35 | ---help--- |
36 | Qualcomm Hexagon is a processor architecture designed for high | |
37 | performance and low power across a wide variety of applications. | |
38 | ||
8f5a0b9d RK |
39 | config HEXAGON_PHYS_OFFSET |
40 | def_bool y | |
41 | ---help--- | |
42 | Platforms that don't load the kernel at zero set this. | |
43 | ||
e95bf452 RK |
44 | config FRAME_POINTER |
45 | def_bool y | |
46 | ||
47 | config LOCKDEP_SUPPORT | |
48 | def_bool y | |
49 | ||
50 | config PCI | |
51 | def_bool n | |
52 | ||
53 | config EARLY_PRINTK | |
54 | def_bool y | |
55 | ||
e95bf452 RK |
56 | config MMU |
57 | def_bool y | |
58 | ||
59 | config TRACE_IRQFLAGS_SUPPORT | |
60 | def_bool y | |
61 | ||
62 | config GENERIC_CSUM | |
63 | def_bool y | |
64 | ||
65 | # | |
66 | # Use the generic interrupt handling code in kernel/irq/: | |
67 | # | |
68 | config GENERIC_IRQ_PROBE | |
69 | def_bool y | |
e95bf452 RK |
70 | |
71 | config RWSEM_GENERIC_SPINLOCK | |
72 | def_bool n | |
73 | ||
74 | config RWSEM_XCHGADD_ALGORITHM | |
75 | def_bool y | |
76 | ||
e95bf452 RK |
77 | config GENERIC_HWEIGHT |
78 | def_bool y | |
79 | ||
e95bf452 RK |
80 | config STACKTRACE_SUPPORT |
81 | def_bool y | |
82 | select STACKTRACE | |
83 | ||
84 | config GENERIC_BUG | |
85 | def_bool y | |
86 | depends on BUG | |
87 | ||
e95bf452 RK |
88 | menu "Machine selection" |
89 | ||
90 | choice | |
91 | prompt "System type" | |
5042ab91 | 92 | default HEXAGON_COMET |
e95bf452 RK |
93 | |
94 | config HEXAGON_COMET | |
95 | bool "Comet Board" | |
e95bf452 RK |
96 | ---help--- |
97 | Support for the Comet platform. | |
98 | ||
99 | endchoice | |
100 | ||
66b03dbf RK |
101 | config HEXAGON_ARCH_VERSION |
102 | int "Architecture version" | |
103 | default 2 | |
104 | ||
e95bf452 RK |
105 | config CMDLINE |
106 | string "Default kernel command string" | |
107 | default "" | |
108 | help | |
109 | On some platforms, there is currently no way for the boot loader | |
110 | to pass arguments to the kernel. For these, you should supply some | |
111 | command-line options at build time by entering them here. At a | |
112 | minimum, you should specify the memory size and the root device | |
113 | (e.g., mem=64M root=/dev/nfs). | |
114 | ||
e95bf452 RK |
115 | config SMP |
116 | bool "Multi-Processing support" | |
117 | ---help--- | |
118 | Enables SMP support in the kernel. If unsure, say "Y" | |
119 | ||
120 | config NR_CPUS | |
121 | int "Maximum number of CPUs" if SMP | |
122 | range 2 6 if SMP | |
123 | default "1" if !SMP | |
124 | default "6" if SMP | |
125 | ---help--- | |
126 | This allows you to specify the maximum number of CPUs which this | |
127 | kernel will support. The maximum supported value is 6 and the | |
128 | minimum value which makes sense is 2. | |
129 | ||
130 | This is purely to save memory - each supported CPU adds | |
131 | approximately eight kilobytes to the kernel image. | |
132 | ||
133 | choice | |
134 | prompt "Kernel page size" | |
135 | default PAGE_SIZE_4KB | |
136 | ---help--- | |
137 | Changes the default page size; use with caution. | |
138 | ||
139 | config PAGE_SIZE_4KB | |
140 | bool "4KB" | |
141 | ||
142 | config PAGE_SIZE_16KB | |
143 | bool "16KB" | |
144 | ||
145 | config PAGE_SIZE_64KB | |
146 | bool "64KB" | |
147 | ||
148 | config PAGE_SIZE_256KB | |
149 | bool "256KB" | |
150 | ||
151 | endchoice | |
152 | ||
e95bf452 | 153 | source "kernel/Kconfig.hz" |
e95bf452 | 154 | |
e95bf452 | 155 | endmenu |