* [PATCH] MIPS: alchemy: Share prom_init implementation
@ 2020-10-05 11:28 Thomas Bogendoerfer
2020-10-05 11:28 ` [PATCH] MIPS: pgtable: Remove used PAGE_USERIO define Thomas Bogendoerfer
0 siblings, 1 reply; 5+ messages in thread
From: Thomas Bogendoerfer @ 2020-10-05 11:28 UTC (permalink / raw)
To: linux-mips, linux-kernel
All boards have the same prom_init() function. Move it to common code and
delete the duplicates.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
arch/mips/alchemy/board-gpr.c | 17 -----------------
arch/mips/alchemy/board-mtx1.c | 17 -----------------
arch/mips/alchemy/board-xxs1500.c | 18 ------------------
arch/mips/alchemy/common/prom.c | 20 ++++++++++++++++++++
arch/mips/alchemy/devboards/platform.c | 17 -----------------
5 files changed, 20 insertions(+), 69 deletions(-)
diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c
index 6c47318946e4..f587c40b6d00 100644
--- a/arch/mips/alchemy/board-gpr.c
+++ b/arch/mips/alchemy/board-gpr.c
@@ -31,23 +31,6 @@ const char *get_system_type(void)
return "GPR";
}
-void __init prom_init(void)
-{
- unsigned char *memsize_str;
- unsigned long memsize;
-
- prom_argc = fw_arg0;
- prom_argv = (char **)fw_arg1;
- prom_envp = (char **)fw_arg2;
-
- prom_init_cmdline();
-
- memsize_str = prom_getenv("memsize");
- if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
- memsize = 0x04000000;
- add_memory_region(0, memsize, BOOT_MEM_RAM);
-}
-
void prom_putchar(char c)
{
alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
diff --git a/arch/mips/alchemy/board-mtx1.c b/arch/mips/alchemy/board-mtx1.c
index 23093535399f..68ea57511629 100644
--- a/arch/mips/alchemy/board-mtx1.c
+++ b/arch/mips/alchemy/board-mtx1.c
@@ -30,23 +30,6 @@ const char *get_system_type(void)
return "MTX-1";
}
-void __init prom_init(void)
-{
- unsigned char *memsize_str;
- unsigned long memsize;
-
- prom_argc = fw_arg0;
- prom_argv = (char **)fw_arg1;
- prom_envp = (char **)fw_arg2;
-
- prom_init_cmdline();
-
- memsize_str = prom_getenv("memsize");
- if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
- memsize = 0x04000000;
- add_memory_region(0, memsize, BOOT_MEM_RAM);
-}
-
void prom_putchar(char c)
{
alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
diff --git a/arch/mips/alchemy/board-xxs1500.c b/arch/mips/alchemy/board-xxs1500.c
index c67dfe1f4997..b184baa4e56a 100644
--- a/arch/mips/alchemy/board-xxs1500.c
+++ b/arch/mips/alchemy/board-xxs1500.c
@@ -25,24 +25,6 @@ const char *get_system_type(void)
return "XXS1500";
}
-void __init prom_init(void)
-{
- unsigned char *memsize_str;
- unsigned long memsize;
-
- prom_argc = fw_arg0;
- prom_argv = (char **)fw_arg1;
- prom_envp = (char **)fw_arg2;
-
- prom_init_cmdline();
-
- memsize_str = prom_getenv("memsize");
- if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
- memsize = 0x04000000;
-
- add_memory_region(0, memsize, BOOT_MEM_RAM);
-}
-
void prom_putchar(char c)
{
alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
diff --git a/arch/mips/alchemy/common/prom.c b/arch/mips/alchemy/common/prom.c
index af312b5e33f6..cfa203064d3c 100644
--- a/arch/mips/alchemy/common/prom.c
+++ b/arch/mips/alchemy/common/prom.c
@@ -34,6 +34,8 @@
*/
#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sizes.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
@@ -76,6 +78,24 @@ char *prom_getenv(char *envname)
return NULL;
}
+void __init prom_init(void)
+{
+ unsigned char *memsize_str;
+ unsigned long memsize;
+
+ prom_argc = (int)fw_arg0;
+ prom_argv = (char **)fw_arg1;
+ prom_envp = (char **)fw_arg2;
+
+ prom_init_cmdline();
+
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+ memsize = SZ_64M; /* minimum memsize is 64MB RAM */
+
+ add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
+
static inline unsigned char str2hexnum(unsigned char c)
{
if (c >= '0' && c <= '9')
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index 8d4b65c3268a..754bdd2ca630 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -20,23 +20,6 @@
#include <prom.h>
-void __init prom_init(void)
-{
- unsigned char *memsize_str;
- unsigned long memsize;
-
- prom_argc = (int)fw_arg0;
- prom_argv = (char **)fw_arg1;
- prom_envp = (char **)fw_arg2;
-
- prom_init_cmdline();
- memsize_str = prom_getenv("memsize");
- if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
- memsize = 64 << 20; /* all devboards have at least 64MB RAM */
-
- add_memory_region(0, memsize, BOOT_MEM_RAM);
-}
-
void prom_putchar(char c)
{
if (alchemy_get_cputype() == ALCHEMY_CPU_AU1300)
--
2.16.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH] MIPS: pgtable: Remove used PAGE_USERIO define
2020-10-05 11:28 [PATCH] MIPS: alchemy: Share prom_init implementation Thomas Bogendoerfer
@ 2020-10-05 11:28 ` Thomas Bogendoerfer
2020-10-06 11:31 ` Thomas Bogendoerfer
0 siblings, 1 reply; 5+ messages in thread
From: Thomas Bogendoerfer @ 2020-10-05 11:28 UTC (permalink / raw)
To: linux-mips, linux-kernel
There are no users of PAGE_USERIO.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
---
arch/mips/include/asm/pgtable.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index dd7a0f552cac..e5ef0fdd4838 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -37,8 +37,6 @@ struct vm_area_struct;
_PAGE_GLOBAL | _page_cachable_default)
#define PAGE_KERNEL_NC __pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \
_PAGE_GLOBAL | _CACHE_CACHABLE_NONCOHERENT)
-#define PAGE_USERIO __pgprot(_PAGE_PRESENT | _PAGE_WRITE | \
- _page_cachable_default)
#define PAGE_KERNEL_UNCACHED __pgprot(_PAGE_PRESENT | __READABLE | \
__WRITEABLE | _PAGE_GLOBAL | _CACHE_UNCACHED)
--
2.16.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] MIPS: pgtable: Remove used PAGE_USERIO define
2020-10-05 11:28 ` [PATCH] MIPS: pgtable: Remove used PAGE_USERIO define Thomas Bogendoerfer
@ 2020-10-06 11:31 ` Thomas Bogendoerfer
2020-10-07 2:11 ` Huacai Chen
0 siblings, 1 reply; 5+ messages in thread
From: Thomas Bogendoerfer @ 2020-10-06 11:31 UTC (permalink / raw)
To: linux-mips, linux-kernel
On Mon, Oct 05, 2020 at 01:28:46PM +0200, Thomas Bogendoerfer wrote:
> There are no users of PAGE_USERIO.
>
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> ---
> arch/mips/include/asm/pgtable.h | 2 --
> 1 file changed, 2 deletions(-)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] MIPS: pgtable: Remove used PAGE_USERIO define
2020-10-06 11:31 ` Thomas Bogendoerfer
@ 2020-10-07 2:11 ` Huacai Chen
2020-10-07 6:44 ` Thomas Bogendoerfer
0 siblings, 1 reply; 5+ messages in thread
From: Huacai Chen @ 2020-10-07 2:11 UTC (permalink / raw)
To: Thomas Bogendoerfer; +Cc: open list:MIPS, LKML
s/used/unused/g, but it is too late, I'm sorry.
Huacai
On Tue, Oct 6, 2020 at 7:31 PM Thomas Bogendoerfer
<tsbogend@alpha.franken.de> wrote:
>
> On Mon, Oct 05, 2020 at 01:28:46PM +0200, Thomas Bogendoerfer wrote:
> > There are no users of PAGE_USERIO.
> >
> > Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> > ---
> > arch/mips/include/asm/pgtable.h | 2 --
> > 1 file changed, 2 deletions(-)
>
> applied to mips-next.
>
> Thomas.
>
> --
> Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
> good idea. [ RFC1925, 2.3 ]
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] MIPS: pgtable: Remove used PAGE_USERIO define
2020-10-07 2:11 ` Huacai Chen
@ 2020-10-07 6:44 ` Thomas Bogendoerfer
0 siblings, 0 replies; 5+ messages in thread
From: Thomas Bogendoerfer @ 2020-10-07 6:44 UTC (permalink / raw)
To: Huacai Chen; +Cc: open list:MIPS, LKML
On Wed, Oct 07, 2020 at 10:11:46AM +0800, Huacai Chen wrote:
> s/used/unused/g, but it is too late, I'm sorry.
d'oh, I should probably wait a day longer before applying. Thank you for
your feedback.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-10-07 6:56 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2020-10-05 11:28 [PATCH] MIPS: alchemy: Share prom_init implementation Thomas Bogendoerfer
2020-10-05 11:28 ` [PATCH] MIPS: pgtable: Remove used PAGE_USERIO define Thomas Bogendoerfer
2020-10-06 11:31 ` Thomas Bogendoerfer
2020-10-07 2:11 ` Huacai Chen
2020-10-07 6:44 ` Thomas Bogendoerfer
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