All of lore.kernel.org
 help / color / mirror / Atom feed
From: Raphael Poggi <poggi.raph@gmail.com>
To: barebox@lists.infradead.org
Cc: Raphael Poggi <poggi.raph@gmail.com>
Subject: [PATCH v2 01/12] arm: add armv8 Kconfig entries
Date: Tue, 14 Jun 2016 09:06:35 +0200	[thread overview]
Message-ID: <1465888006-39463-2-git-send-email-poggi.raph@gmail.com> (raw)
In-Reply-To: <1465888006-39463-1-git-send-email-poggi.raph@gmail.com>

Signed-off-by: Raphael Poggi <poggi.raph@gmail.com>
---
 arch/arm/Kconfig     | 23 +++++++++++++++++++++++
 arch/arm/cpu/Kconfig | 29 ++++++++++++++++++++++++++++-
 2 files changed, 51 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1fc887b..986fdaa 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -315,6 +315,29 @@ config ARM_BOARD_APPEND_ATAG
 
 endmenu
 
+choice
+	prompt "Barebox code model"
+	help
+	  You should only select this option if you have a workload that
+	  actually benefits from 64-bit processing or if your machine has
+	  large memory. You will only be presented a single option in this
+	  menu if your system does not support both 32-bit and 64-bit modes.
+
+config 32BIT
+	bool "32-bit barebox"
+	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
+	help
+	  Select this option if you want to build a 32-bit barebox.
+
+config 64BIT
+	bool "64-bit barebox"
+	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
+	select ARCH_DMA_ADDR_T_64BIT
+	help
+	  Select this option if you want to build a 64-bit barebox.
+
+endchoice
+
 menu "ARM specific settings"
 
 config ARM_OPTIMZED_STRING_FUNCTIONS
diff --git a/arch/arm/cpu/Kconfig b/arch/arm/cpu/Kconfig
index 4f5d9b6..fd327a8 100644
--- a/arch/arm/cpu/Kconfig
+++ b/arch/arm/cpu/Kconfig
@@ -2,7 +2,9 @@ comment "Processor Type"
 
 config CPU_32
 	bool
-	default y
+
+config CPU_64
+	bool
 
 # Select CPU types depending on the architecture selected. This selects
 # which CPUs we support in the kernel image, and the compiler instruction
@@ -69,6 +71,12 @@ config CPU_V7
 	bool
 	select CPU_32v7
 
+# ARMv8
+config CPU_V8
+	bool
+	select CPU_64v8
+	select CPU_SUPPORTS_64BIT_KERNEL
+
 config CPU_XSC3
         bool
         select CPU_32v4T
@@ -84,15 +92,23 @@ config CPU_XSCALE
 # This defines the compiler instruction set which depends on the machine type.
 config CPU_32v4T
 	bool
+	select CPU_32
 
 config CPU_32v5
 	bool
+	select CPU_32
 
 config CPU_32v6
 	bool
+	select CPU_32
 
 config CPU_32v7
 	bool
+	select CPU_32
+
+config CPU_64v8
+	bool
+	select CPU_64
 
 comment "processor features"
 
@@ -124,3 +140,14 @@ config CACHE_L2X0
 	bool "Enable L2x0 PrimeCell"
 	depends on MMU && ARCH_HAS_L2X0
 
+config SYS_SUPPORTS_32BIT_KERNEL
+	bool
+
+config SYS_SUPPORTS_64BIT_KERNEL
+	bool
+
+config CPU_SUPPORTS_32BIT_KERNEL
+	bool
+
+config CPU_SUPPORTS_64BIT_KERNEL
+	bool
-- 
2.1.0


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

  reply	other threads:[~2016-06-14  7:07 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-14  7:06 Raphael Poggi
2016-06-14  7:06 ` Raphael Poggi [this message]
2016-06-15  6:33   ` [PATCH v2 01/12] arm: add armv8 Kconfig entries Sascha Hauer
2016-06-23 14:43     ` Raphaël Poggi
2016-06-14  7:06 ` [PATCH v2 02/12] arm: Makefile: rework makefile to handle armv8 Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 03/12] arm: introduce lib64 for arm64 related stuff Raphael Poggi
2016-06-15  6:15   ` Sascha Hauer
2016-06-23 14:43     ` Raphaël Poggi
2016-06-14  7:06 ` [PATCH v2 04/12] arm: cpu: add arm64 specific code Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 05/12] arm: include: system: add arm64 helper functions Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 06/12] arm: cpu: start: arm64 does not support relocation Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 07/12] arm: include: bitops: arm64 use generic __fls Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 08/12] arm: include: system_info: add armv8 identification Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 09/12] arm: cpu: cpuinfo: add armv8 support Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 10/12] arm: cpu: disable code portion in armv8 case Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 11/12] arm: cpu: add basic arm64 mmu support Raphael Poggi
2016-06-14  7:06 ` [PATCH v2 12/12] arm: boards: add mach-qemu and virt64 board Raphael Poggi
2016-06-24  8:17 ` Raphaël Poggi
2016-06-24 11:49   ` Re: Sascha Hauer

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1465888006-39463-2-git-send-email-poggi.raph@gmail.com \
    --to=poggi.raph@gmail.com \
    --cc=barebox@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.