From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linuxppc-dev@lists.ozlabs.org
Subject: [RFC PATCH 10/11] powerpc/prom_init: Move __prombss to it's own section and store it in .bss
Date: Thu, 31 May 2018 14:33:48 +1000 [thread overview]
Message-ID: <20180531043349.24783-11-benh@kernel.crashing.org> (raw)
In-Reply-To: <20180531043349.24783-1-benh@kernel.crashing.org>
This makes __prombss its own section, and for now store
it in .bss.
This will give us the ability later to store it elsewhere
and/or free it after boot (it's about 8KB).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/kernel/prom_init.c | 2 +-
arch/powerpc/kernel/vmlinux.lds.S | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index f54177a84dbc..8c39f6bb8ee3 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -49,7 +49,7 @@
#include <linux/linux_logo.h>
/* All of prom_init bss lives here */
-#define __prombss __initdata
+#define __prombss __section(.bss.prominit)
/*
* Eventually bump that one up
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index b8d82678f8b4..c3254d978e34 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -4,6 +4,9 @@
#else
#define PROVIDE32(x) PROVIDE(x)
#endif
+
+#define BSS_FIRST_SECTIONS *(.bss.prominit)
+
#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
#include <asm/cache.h>
--
2.17.0
next prev parent reply other threads:[~2018-05-31 4:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-31 4:33 Benjamin Herrenschmidt
2018-05-31 4:33 ` [RFC PATCH 01/11] powerpc/prom_init: Make of_workarounds static Benjamin Herrenschmidt
2018-10-12 13:56 ` Michael Ellerman
2018-10-15 4:00 ` [RFC,01/11] " Michael Ellerman
2018-05-31 4:33 ` [RFC PATCH 02/11] powerpc/prom_init: Make "fake_elf" const Benjamin Herrenschmidt
2018-10-15 4:00 ` [RFC,02/11] " Michael Ellerman
2018-05-31 4:33 ` [RFC PATCH 03/11] powerpc/prom_init: Make "default_colors" const Benjamin Herrenschmidt
2018-10-15 4:00 ` [RFC,03/11] " Michael Ellerman
2018-05-31 4:33 ` [RFC PATCH 04/11] powerpc/prom_init: Replace __initdata with __prombss when applicable Benjamin Herrenschmidt
2018-05-31 4:33 ` [RFC PATCH 05/11] powerpc/prom_init: Remove support for OPAL v2 Benjamin Herrenschmidt
2018-05-31 4:33 ` [RFC PATCH 06/11] powerpc/prom_init: Move prom_radix_disable to __prombss Benjamin Herrenschmidt
2018-05-31 4:33 ` [RFC PATCH 07/11] powerpc/prom_init: Move ibm_arch_vec " Benjamin Herrenschmidt
2018-05-31 4:33 ` [RFC PATCH 08/11] powerpc/prom_init: Move const structures to __initconst Benjamin Herrenschmidt
2018-05-31 4:33 ` [RFC PATCH 09/11] powerpc/prom_init: Move a few remaining statics to appropriate sections Benjamin Herrenschmidt
2018-05-31 4:33 ` Benjamin Herrenschmidt [this message]
2018-05-31 4:33 ` [RFC PATCH 11/11] powerpc: Check prom_init for disallowed sections Benjamin Herrenschmidt
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