* [Buildroot] [git commit] arch/Config.in.arm: re-organize MMU selection
@ 2022-04-24 8:49 Yann E. MORIN
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From: Yann E. MORIN @ 2022-04-24 8:49 UTC (permalink / raw)
To: buildroot
commit: https://git.buildroot.net/buildroot/commit/?id=8c925613dc1d3af6031c9a39bb51b418cfe2b9d8
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
So far, all ARM cores were selecting BR2_ARCH_HAS_MMU_OPTIONAL, except
no-MMU cores which were selecting nothing.
In practice, MMU-capable ARM cores are always used with their MMU
enabled, so it doesn't make sense to support the use case of not using
the MMU on such cores.
Consequently, to simplify things, we group the MMU handling in the
BR2_ARM_CPU_ARM* options: BR2_ARM_CPU_ARMV4, BR2_ARM_CPU_ARMV5,
BR2_ARM_CPU_ARMV6, BR2_ARM_CPU_ARMV7A, BR2_ARM_CPU_ARMV8A all select
BR2_ARCH_HAS_MMU_MANDATORY, while BR2_ARM_CPU_ARMV7M continues to
select nothing, indicating that there is no MMU available at all.
Fixes:
http://autobuild.buildroot.net/results/33277d4687ca9a04dbfb02c50e5755ff9e55b0b4/ (FLAT
selected on AArch64)
http://autobuild.buildroot.net/results/5e34d11393e14fc36fd6e72b69679bc4fd1e3798/ (FLAT
selected on AArch64 big-endian)
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
---
arch/Config.in.arm | 59 +++++-------------------------------------------------
1 file changed, 5 insertions(+), 54 deletions(-)
diff --git a/arch/Config.in.arm b/arch/Config.in.arm
index 85040ac89f..fa2e882550 100644
--- a/arch/Config.in.arm
+++ b/arch/Config.in.arm
@@ -73,21 +73,26 @@ config BR2_ARM_CPU_HAS_THUMB2
config BR2_ARM_CPU_ARMV4
bool
+ select BR2_ARCH_HAS_MMU_MANDATORY
config BR2_ARM_CPU_ARMV5
bool
+ select BR2_ARCH_HAS_MMU_MANDATORY
config BR2_ARM_CPU_ARMV6
bool
+ select BR2_ARCH_HAS_MMU_MANDATORY
config BR2_ARM_CPU_ARMV7A
bool
+ select BR2_ARCH_HAS_MMU_MANDATORY
config BR2_ARM_CPU_ARMV7M
bool
config BR2_ARM_CPU_ARMV8A
bool
+ select BR2_ARCH_HAS_MMU_MANDATORY
choice
prompt "Target Architecture Variant"
@@ -103,23 +108,19 @@ config BR2_arm920t
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV4
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_arm922t
bool "arm922t"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV4
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_fa526
bool "fa526/626"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV4
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_strongarm
bool "strongarm sa110/sa1100"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV4
- select BR2_ARCH_HAS_MMU_OPTIONAL
comment "armv5 cores"
config BR2_arm926t
@@ -128,18 +129,15 @@ config BR2_arm926t
select BR2_ARM_CPU_MAYBE_HAS_VFPV2
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV5
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_iwmmxt
bool "iwmmxt"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_ARMV5
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_xscale
bool "xscale"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV5
- select BR2_ARCH_HAS_MMU_OPTIONAL
comment "armv6 cores"
config BR2_arm1136j_s
@@ -147,34 +145,29 @@ config BR2_arm1136j_s
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV6
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_arm1136jf_s
bool "arm1136jf-s"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_VFPV2
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV6
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_arm1176jz_s
bool "arm1176jz-s"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV6
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_arm1176jzf_s
bool "arm1176jzf-s"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_VFPV2
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV6
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_arm11mpcore
bool "mpcore"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_MAYBE_HAS_VFPV2
select BR2_ARM_CPU_HAS_THUMB
select BR2_ARM_CPU_ARMV6
- select BR2_ARCH_HAS_MMU_OPTIONAL
comment "armv7a cores"
config BR2_cortex_a5
@@ -184,7 +177,6 @@ config BR2_cortex_a5
select BR2_ARM_CPU_MAYBE_HAS_VFPV4
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a7
bool "cortex-A7"
select BR2_ARM_CPU_HAS_ARM
@@ -192,7 +184,6 @@ config BR2_cortex_a7
select BR2_ARM_CPU_HAS_VFPV4
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a8
bool "cortex-A8"
select BR2_ARM_CPU_HAS_ARM
@@ -200,7 +191,6 @@ config BR2_cortex_a8
select BR2_ARM_CPU_HAS_VFPV3
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a9
bool "cortex-A9"
select BR2_ARM_CPU_HAS_ARM
@@ -208,7 +198,6 @@ config BR2_cortex_a9
select BR2_ARM_CPU_MAYBE_HAS_VFPV3
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a12
bool "cortex-A12"
select BR2_ARM_CPU_HAS_ARM
@@ -216,7 +205,6 @@ config BR2_cortex_a12
select BR2_ARM_CPU_HAS_VFPV4
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a15
bool "cortex-A15"
select BR2_ARM_CPU_HAS_ARM
@@ -224,7 +212,6 @@ config BR2_cortex_a15
select BR2_ARM_CPU_HAS_VFPV4
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a15_a7
bool "cortex-A15/A7 big.LITTLE"
select BR2_ARM_CPU_HAS_ARM
@@ -232,7 +219,6 @@ config BR2_cortex_a15_a7
select BR2_ARM_CPU_HAS_VFPV4
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9
config BR2_cortex_a17
bool "cortex-A17"
@@ -241,7 +227,6 @@ config BR2_cortex_a17
select BR2_ARM_CPU_HAS_VFPV4
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
config BR2_cortex_a17_a7
bool "cortex-A17/A7 big.LITTLE"
@@ -250,14 +235,12 @@ config BR2_cortex_a17_a7
select BR2_ARM_CPU_HAS_VFPV4
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
config BR2_pj4
bool "pj4"
select BR2_ARM_CPU_HAS_ARM
select BR2_ARM_CPU_HAS_VFPV3
select BR2_ARM_CPU_ARMV7A
- select BR2_ARCH_HAS_MMU_OPTIONAL
comment "armv7m cores"
config BR2_cortex_m3
@@ -286,7 +269,6 @@ config BR2_cortex_a32
select BR2_ARM_CPU_HAS_THUMB2
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_cortex_a35
bool "cortex-A35"
@@ -295,7 +277,6 @@ config BR2_cortex_a35
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_cortex_a53
bool "cortex-A53"
@@ -304,7 +285,6 @@ config BR2_cortex_a53
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a57
bool "cortex-A57"
select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
@@ -312,7 +292,6 @@ config BR2_cortex_a57
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
config BR2_cortex_a57_a53
bool "cortex-A57/A53 big.LITTLE"
select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
@@ -320,7 +299,6 @@ config BR2_cortex_a57_a53
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_cortex_a72
bool "cortex-A72"
@@ -329,7 +307,6 @@ config BR2_cortex_a72
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
config BR2_cortex_a72_a53
bool "cortex-A72/A53 big.LITTLE"
@@ -338,7 +315,6 @@ config BR2_cortex_a72_a53
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_cortex_a73
bool "cortex-A73"
@@ -347,7 +323,6 @@ config BR2_cortex_a73
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_cortex_a73_a35
bool "cortex-A73/A35 big.LITTLE"
@@ -356,7 +331,6 @@ config BR2_cortex_a73_a35
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_cortex_a73_a53
bool "cortex-A73/A53 big.LITTLE"
@@ -365,14 +339,12 @@ config BR2_cortex_a73_a53
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_emag
bool "emag"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
config BR2_exynos_m1
bool "exynos-m1"
@@ -381,63 +353,54 @@ config BR2_exynos_m1
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
config BR2_falkor
bool "falkor"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_phecda
bool "phecda"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
config BR2_qdf24xx
bool "qdf24xx"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
config BR2_thunderx
bool "thunderx (aka octeontx)"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
config BR2_thunderxt81
bool "thunderxt81 (aka octeontx81)"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_thunderxt83
bool "thunderxt83 (aka octeontx83)"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_thunderxt88
bool "thunderxt88"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_thunderxt88p1
bool "thunderxt88p1"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_xgene1
bool "xgene1"
@@ -446,7 +409,6 @@ config BR2_xgene1
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
comment "armv8.1a cores"
@@ -455,21 +417,18 @@ config BR2_thunderx2t99
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_thunderx2t99p1
bool "thunderx2t99p1"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
config BR2_vulcan
bool "vulcan"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_7
comment "armv8.2a cores"
@@ -478,21 +437,18 @@ config BR2_cortex_a55
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
config BR2_cortex_a75
bool "cortex-A75"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
config BR2_cortex_a75_a55
bool "cortex-A75/A55 big.LITTLE"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
config BR2_cortex_a76
bool "cortex-A76"
@@ -501,7 +457,6 @@ config BR2_cortex_a76
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
config BR2_cortex_a76_a55
bool "cortex-A76/A55 big.LITTLE"
@@ -510,7 +465,6 @@ config BR2_cortex_a76_a55
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
config BR2_neoverse_n1
bool "neoverse-N1 (aka ares)"
@@ -519,14 +473,12 @@ config BR2_neoverse_n1
select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
config BR2_tsv110
bool "tsv110"
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
comment "armv8.4a cores"
@@ -535,7 +487,6 @@ config BR2_saphira
depends on BR2_ARCH_IS_64
select BR2_ARM_CPU_HAS_FP_ARMV8
select BR2_ARM_CPU_ARMV8A
- select BR2_ARCH_HAS_MMU_OPTIONAL
select BR2_ARCH_NEEDS_GCC_AT_LEAST_8
endchoice
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2022-04-24 8:49 [Buildroot] [git commit] arch/Config.in.arm: re-organize MMU selection Yann E. MORIN
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