All of lore.kernel.org
 help / color / mirror / Atom feed
From: Tomas Hlavacek <tmshlvck@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCHv2 1/1] [RFC] DM: early_malloc for DM added.
Date: Mon, 27 Aug 2012 14:42:11 +0200	[thread overview]
Message-ID: <1346071331-28989-1-git-send-email-tmshlvck@gmail.com> (raw)
In-Reply-To: <1346069529-27397-1-git-send-email-tmshlvck@gmail.com>

Modular early_malloc for DM with support for more heaps and lightweight
first heap on stack.

(Not intended for merging!)

Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com>
---
 arch/arm/include/asm/global_data.h        |    1 +
 arch/arm/lib/board.c                      |    5 ++
 arch/avr32/include/asm/global_data.h      |    1 +
 arch/avr32/lib/board.c                    |    4 ++
 arch/blackfin/include/asm/global_data.h   |    1 +
 arch/blackfin/lib/board.c                 |    4 ++
 arch/m68k/include/asm/global_data.h       |    1 +
 arch/m68k/lib/board.c                     |    4 ++
 arch/microblaze/include/asm/global_data.h |    1 +
 arch/microblaze/lib/board.c               |    5 ++
 arch/mips/include/asm/global_data.h       |    1 +
 arch/mips/lib/board.c                     |    4 ++
 arch/nds32/include/asm/global_data.h      |    1 +
 arch/nds32/lib/board.c                    |    4 ++
 arch/nios2/include/asm/global_data.h      |    1 +
 arch/nios2/lib/board.c                    |    4 ++
 arch/openrisc/include/asm/global_data.h   |    1 +
 arch/openrisc/lib/board.c                 |    4 ++
 arch/powerpc/include/asm/global_data.h    |    1 +
 arch/powerpc/lib/board.c                  |    4 ++
 arch/sandbox/include/asm/global_data.h    |    1 +
 arch/sandbox/lib/board.c                  |    4 ++
 arch/sh/include/asm/global_data.h         |    1 +
 arch/sparc/include/asm/global_data.h      |    1 +
 arch/sparc/lib/board.c                    |    4 ++
 arch/x86/include/asm/global_data.h        |    1 +
 arch/x86/lib/board.c                      |    4 ++
 common/Makefile                           |    1 +
 common/earlymalloc.c                      |   91 +++++++++++++++++++++++++++++
 include/earlymalloc.h                     |   49 ++++++++++++++++
 30 files changed, 209 insertions(+)
 create mode 100644 common/earlymalloc.c
 create mode 100644 include/earlymalloc.h

diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h
index c3ff789..8563d49 100644
--- a/arch/arm/include/asm/global_data.h
+++ b/arch/arm/include/asm/global_data.h
@@ -84,6 +84,7 @@ typedef	struct	global_data {
 	unsigned long	post_log_res; /* success of POST test */
 	unsigned long	post_init_f_time; /* When post_init_f started */
 #endif
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c
index 500e216..ad124c6 100644
--- a/arch/arm/lib/board.c
+++ b/arch/arm/lib/board.c
@@ -52,6 +52,7 @@
 #include <fdtdec.h>
 #include <post.h>
 #include <logbuff.h>
+#include <earlymalloc.h>
 
 #ifdef CONFIG_BITBANGMII
 #include <miiphy.h>
@@ -273,6 +274,10 @@ void board_init_f(ulong bootflag)
 
 	memset((void *)gd, 0, sizeof(gd_t));
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	gd->mon_len = _bss_end_ofs;
 #ifdef CONFIG_OF_EMBED
 	/* Get a pointer to the FDT */
diff --git a/arch/avr32/include/asm/global_data.h b/arch/avr32/include/asm/global_data.h
index 5c654bd..9ae7c5e 100644
--- a/arch/avr32/include/asm/global_data.h
+++ b/arch/avr32/include/asm/global_data.h
@@ -50,6 +50,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/avr32/lib/board.c b/arch/avr32/lib/board.c
index 63fe297..8cb56df 100644
--- a/arch/avr32/lib/board.c
+++ b/arch/avr32/lib/board.c
@@ -149,6 +149,10 @@ void board_init_f(ulong board_type)
 	memset(&gd_data, 0, sizeof(gd_data));
 	gd = &gd_data;
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	/* Perform initialization sequence */
 	board_early_init_f();
 	cpu_init();
diff --git a/arch/blackfin/include/asm/global_data.h b/arch/blackfin/include/asm/global_data.h
index 67aa30f..33d3cec 100644
--- a/arch/blackfin/include/asm/global_data.h
+++ b/arch/blackfin/include/asm/global_data.h
@@ -59,6 +59,7 @@ typedef struct global_data {
 
 	void	**jt;			/* jump table */
 	char	env_buf[32];		/* buffer for getenv() before reloc. */
+	void	*early_heap_first;	/* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/blackfin/lib/board.c b/arch/blackfin/lib/board.c
index e3ee4cd..f8dade6 100644
--- a/arch/blackfin/lib/board.c
+++ b/arch/blackfin/lib/board.c
@@ -250,6 +250,10 @@ void board_init_f(ulong bootflag)
 	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
 	bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	/* Initialize */
 	serial_early_puts("IRQ init\n");
 	irq_init();
diff --git a/arch/m68k/include/asm/global_data.h b/arch/m68k/include/asm/global_data.h
index 0ba2b43..ddd76f9 100644
--- a/arch/m68k/include/asm/global_data.h
+++ b/arch/m68k/include/asm/global_data.h
@@ -68,6 +68,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* Standalone app jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/m68k/lib/board.c b/arch/m68k/lib/board.c
index 1526967..a420d21 100644
--- a/arch/m68k/lib/board.c
+++ b/arch/m68k/lib/board.c
@@ -227,6 +227,10 @@ board_init_f (ulong bootflag)
 	/* Clear initial global data */
 	memset ((void *) gd, 0, sizeof (gd_t));
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 		if ((*init_fnc_ptr)() != 0) {
 			hang ();
diff --git a/arch/microblaze/include/asm/global_data.h b/arch/microblaze/include/asm/global_data.h
index 6e8537c..4e340e6 100644
--- a/arch/microblaze/include/asm/global_data.h
+++ b/arch/microblaze/include/asm/global_data.h
@@ -47,6 +47,7 @@ typedef	struct	global_data {
 	unsigned long	fb_base;	/* base address of frame buffer */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/microblaze/lib/board.c b/arch/microblaze/lib/board.c
index 9828b76..302a323 100644
--- a/arch/microblaze/lib/board.c
+++ b/arch/microblaze/lib/board.c
@@ -101,6 +101,11 @@ void board_init (void)
 	asm ("nop");	/* FIXME gd is not initialize - wait */
 	memset ((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
 	memset ((void *)bd, 0, GENERATED_BD_INFO_SIZE);
+
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	gd->bd = bd;
 	gd->baudrate = CONFIG_BAUDRATE;
 	bd->bi_baudrate = CONFIG_BAUDRATE;
diff --git a/arch/mips/include/asm/global_data.h b/arch/mips/include/asm/global_data.h
index f6cf9fe..9656fd6 100644
--- a/arch/mips/include/asm/global_data.h
+++ b/arch/mips/include/asm/global_data.h
@@ -61,6 +61,7 @@ typedef	struct	global_data {
 	unsigned long	env_valid;	/* Checksum of Environment valid? */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/mips/lib/board.c b/arch/mips/lib/board.c
index d998f0e..f40258c 100644
--- a/arch/mips/lib/board.c
+++ b/arch/mips/lib/board.c
@@ -160,6 +160,10 @@ void board_init_f(ulong bootflag)
 
 	memset((void *)gd, 0, sizeof(gd_t));
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 		if ((*init_fnc_ptr)() != 0)
 			hang();
diff --git a/arch/nds32/include/asm/global_data.h b/arch/nds32/include/asm/global_data.h
index de20a0a..313fecb 100644
--- a/arch/nds32/include/asm/global_data.h
+++ b/arch/nds32/include/asm/global_data.h
@@ -65,6 +65,7 @@ typedef	struct global_data {
 
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/nds32/lib/board.c b/arch/nds32/lib/board.c
index 074aabf..34fff30 100644
--- a/arch/nds32/lib/board.c
+++ b/arch/nds32/lib/board.c
@@ -190,6 +190,10 @@ void board_init_f(ulong bootflag)
 
 	memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	gd->mon_len = (unsigned int)(&__bss_end__) - (unsigned int)(&_start);
 
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
diff --git a/arch/nios2/include/asm/global_data.h b/arch/nios2/include/asm/global_data.h
index 4b86fbd..02f93d3 100644
--- a/arch/nios2/include/asm/global_data.h
+++ b/arch/nios2/include/asm/global_data.h
@@ -42,6 +42,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* Standalone app jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /* flags */
diff --git a/arch/nios2/lib/board.c b/arch/nios2/lib/board.c
index 65de26e..87e0559 100644
--- a/arch/nios2/lib/board.c
+++ b/arch/nios2/lib/board.c
@@ -97,6 +97,10 @@ void board_init (void)
 
 	memset( gd, 0, GENERATED_GBL_DATA_SIZE );
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	gd->bd = (bd_t *)(gd+1);	/* At end of global data */
 	gd->baudrate = CONFIG_BAUDRATE;
 	gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
diff --git a/arch/openrisc/include/asm/global_data.h b/arch/openrisc/include/asm/global_data.h
index 36de9d0..032b6b2 100644
--- a/arch/openrisc/include/asm/global_data.h
+++ b/arch/openrisc/include/asm/global_data.h
@@ -46,6 +46,7 @@ typedef struct global_data {
 	unsigned long	fb_base;	/* base address of frame buffer */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/openrisc/lib/board.c b/arch/openrisc/lib/board.c
index 85aa189..2a92899 100644
--- a/arch/openrisc/lib/board.c
+++ b/arch/openrisc/lib/board.c
@@ -86,6 +86,10 @@ void board_init(void)
 
 	memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	gd->bd = (bd_t *)(gd+1);	/* At end of global data */
 	gd->baudrate = CONFIG_BAUDRATE;
 	gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
diff --git a/arch/powerpc/include/asm/global_data.h b/arch/powerpc/include/asm/global_data.h
index 01f1d4a..0839d03 100644
--- a/arch/powerpc/include/asm/global_data.h
+++ b/arch/powerpc/include/asm/global_data.h
@@ -184,6 +184,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
index 3f9af1d..ac88ae2 100644
--- a/arch/powerpc/lib/board.c
+++ b/arch/powerpc/lib/board.c
@@ -389,6 +389,10 @@ void board_init_f(ulong bootflag)
 	memset((void *) gd, 0, sizeof(gd_t));
 #endif
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr)
 		if ((*init_fnc_ptr) () != 0)
 			hang();
diff --git a/arch/sandbox/include/asm/global_data.h b/arch/sandbox/include/asm/global_data.h
index 8d47191..54342c0 100644
--- a/arch/sandbox/include/asm/global_data.h
+++ b/arch/sandbox/include/asm/global_data.h
@@ -47,6 +47,7 @@ typedef	struct global_data {
 	phys_size_t	ram_size;	/* RAM size */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/sandbox/lib/board.c b/arch/sandbox/lib/board.c
index b7997e9..3d06cfc 100644
--- a/arch/sandbox/lib/board.c
+++ b/arch/sandbox/lib/board.c
@@ -156,6 +156,10 @@ void board_init_f(ulong bootflag)
 
 	memset((void *)gd, 0, sizeof(gd_t));
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 		if ((*init_fnc_ptr)() != 0)
 			hang();
diff --git a/arch/sh/include/asm/global_data.h b/arch/sh/include/asm/global_data.h
index 1b782fc..180f56e 100644
--- a/arch/sh/include/asm/global_data.h
+++ b/arch/sh/include/asm/global_data.h
@@ -42,6 +42,7 @@ typedef	struct global_data
 	unsigned long	env_valid;	/* Checksum of Environment valid */
 	void		**jt;		/* Standalone app jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 #define	GD_FLG_RELOC		0x00001	/* Code was relocated to RAM		*/
diff --git a/arch/sparc/include/asm/global_data.h b/arch/sparc/include/asm/global_data.h
index 613e2d8..82ed56f 100644
--- a/arch/sparc/include/asm/global_data.h
+++ b/arch/sparc/include/asm/global_data.h
@@ -76,6 +76,7 @@ typedef struct global_data {
 #endif
 	void	**jt;			/* jump table */
 	char	env_buf[32];		/* buffer for getenv() before reloc. */
+	void	*early_heap_first;	/* early heap for early_malloc */
 } gd_t;
 
 /*
diff --git a/arch/sparc/lib/board.c b/arch/sparc/lib/board.c
index 519a4fb..86ee8db 100644
--- a/arch/sparc/lib/board.c
+++ b/arch/sparc/lib/board.c
@@ -179,6 +179,10 @@ void board_init_f(ulong bootflag)
 	/* Clear initial global data */
 	memset((void *)gd, 0, sizeof(gd_t));
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	gd->bd = (bd_t *) (gd + 1);	/* At end of global data */
 	gd->baudrate = CONFIG_BAUDRATE;
 	gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index 908a02c..171f85b 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -59,6 +59,7 @@ typedef	struct global_data {
 	unsigned long	reset_status;	/* reset status register at boot */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	void		*early_heap_first; /* early heap for early_malloc */
 } gd_t;
 
 static inline gd_t *get_fs_gd_ptr(void)
diff --git a/arch/x86/lib/board.c b/arch/x86/lib/board.c
index 5f0b62c..5ff4f42 100644
--- a/arch/x86/lib/board.c
+++ b/arch/x86/lib/board.c
@@ -220,6 +220,10 @@ void board_init_f(ulong boot_flags)
 {
 	gd->flags = boot_flags;
 
+	/* Initialize early_malloc */
+	DECLARE_EARLY_HEAP_ON_STACK;
+	early_heap_init(gd->early_heap_first, CONFIG_SYS_EARLY_HEAP_SIZE);
+
 	do_init_loop(init_sequence_f);
 
 	/*
diff --git a/common/Makefile b/common/Makefile
index 2a31c62..744beb8 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -188,6 +188,7 @@ COBJS-y += console.o
 COBJS-y += dlmalloc.o
 COBJS-y += memsize.o
 COBJS-y += stdio.o
+COBJS-y += earlymalloc.o
 
 
 COBJS	:= $(sort $(COBJS-y))
diff --git a/common/earlymalloc.c b/common/earlymalloc.c
new file mode 100644
index 0000000..044b222
--- /dev/null
+++ b/common/earlymalloc.c
@@ -0,0 +1,91 @@
+/*
+ * (C) Copyright 2012
+ * Tomas Hlavacek (tmshlvck at gmail.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h> /* for ROUND_UP */
+#include <asm/u-boot.h>
+#include <asm/global_data.h> /* for gd_t and gd */
+#include <asm/types.h> /* for phys_addr_t and size_addt_t */
+
+#include <earlymalloc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+
+void early_heap_init(void *heap, size_t size)
+{
+	struct early_heap_header *h = heap;
+
+	h->free_space_pointer = (void *)(roundup((phys_addr_t)heap +
+				sizeof(struct early_heap_header),
+				sizeof(phys_addr_t)));
+	h->free_bytes = size - roundup(sizeof(struct early_heap_header),
+				sizeof(phys_addr_t));
+	h->next_early_heap = NULL;
+}
+
+void *early_malloc(size_t size)
+{
+	phys_addr_t addr;
+	struct early_heap_header *h;
+
+	/* Align size. */
+	size = roundup(size, sizeof(phys_addr_t));
+
+	/* Choose early_heap with enough space. */
+	h = gd->early_heap_first;
+	while ((h->free_bytes < size) && (h->next_early_heap != NULL))
+		h = h->next_early_heap;
+
+	if (h->free_bytes < size) {
+		debug("Early heap overflow. Heap %08lX, free %d, required %d.",
+			h, h->free_bytes, size);
+		return NULL;
+	}
+
+	/* Choose block beginning address and mark next free space. */
+	addr = h->free_space_pointer;
+
+	h->free_space_pointer += size;
+	h->free_bytes -= size;
+
+	return (void *)addr;
+}
+
+
+int early_malloc_isaddress(void *addr)
+{
+	if ((phys_addr_t)addr < (phys_addr_t)gd->early_heap_first)
+		return 0;
+
+	if ((phys_addr_t)addr >= (phys_addr_t)gd->early_heap_first +
+			CONFIG_SYS_EARLY_HEAP_SIZE)
+		return 0;
+
+	return 1;
+}
+
+int early_malloc_finished(void)
+{
+	return gd->flags & GD_FLG_RELOC;
+}
+
diff --git a/include/earlymalloc.h b/include/earlymalloc.h
new file mode 100644
index 0000000..3b1fac2
--- /dev/null
+++ b/include/earlymalloc.h
@@ -0,0 +1,49 @@
+/*
+ * (C) Copyright 2012
+ * Tomas Hlavacek (tmshlvck at gmail.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __INCLUDE_EARLYMALLOC_H
+#define __INCLUDE_EARLYMALLOC_H
+
+#include <linux/stddef.h> /* for size_t */
+
+struct early_heap_header {
+	void *free_space_pointer;
+	size_t free_bytes;
+	void *next_early_heap;
+};
+
+void early_heap_init(void *heap, size_t size);
+void *early_malloc(size_t size);
+int early_malloc_isaddress(void *addr);
+int early_malloc_finished(void);
+
+#ifndef CONFIG_SYS_EARLY_HEAP_SIZE
+#define CONFIG_SYS_EARLY_HEAP_SIZE 256
+#endif /* CONFIG_SYS_EARLY_HEAP_SIZE */
+
+#define DECLARE_EARLY_HEAP_ON_STACK char \
+	__early_heap[CONFIG_SYS_EARLY_HEAP_SIZE]; \
+	gd->early_heap_first = (void *)__early_heap
+
+#endif /* __INCLUDE_EARLYMALLOC_H */
+
-- 
1.7.10.4

  parent reply	other threads:[~2012-08-27 12:42 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-27 12:12 [U-Boot] [PATCH 1/1] [RFC] DM: early_malloc for DM added Tomas Hlavacek
2012-08-27 12:18 ` Marek Vasut
2012-08-27 12:37   ` Tomas Hlavacek
2012-08-27 12:42 ` Tomas Hlavacek [this message]
2012-08-27 23:02   ` [U-Boot] [PATCHv2 " Graeme Russ
2012-08-28  0:11     ` Graeme Russ
2012-08-28  0:18     ` Graeme Russ
2012-09-18  7:13 ` [U-Boot] [PATCHv4] " Tomas Hlavacek
2012-09-18 10:57   ` Marek Vasut
2012-09-18 23:29     ` Graeme Russ
2012-09-18 23:33       ` Marek Vasut
2012-09-18 23:44         ` Graeme Russ
2012-09-18 23:53           ` Marek Vasut
2012-09-19 18:29       ` Tom Rini
2012-09-22  0:37       ` Tomas Hlavacek
2012-09-18 23:25   ` Graeme Russ
2012-09-22  0:25 ` [U-Boot] [PATCH v5] [RFC] " Tomas Hlavacek
2012-09-22  0:28   ` Marek Vasut
2012-09-22  7:52     ` Tomas Hlavacek
2012-09-22 13:19       ` Marek Vasut
2012-09-22 22:09 ` [U-Boot] [PATCH v6] " Tomas Hlavacek
2012-09-23 13:06   ` Graeme Russ
2012-09-23 15:30     ` Tomas Hlavacek
2012-09-23 15:38 ` [U-Boot] [PATCH v7] " Tomas Hlavacek
2012-09-23 16:15 ` [U-Boot] [PATCH v8] " Tomas Hlavacek
2012-09-23 16:32   ` Wolfgang Denk
2012-09-23 16:47     ` Tomas Hlavacek
2012-09-24 21:48       ` Tom Rini
2012-09-23 23:11   ` Marek Vasut
2012-09-24 14:16     ` Tomas Hlavacek
2012-09-24 14:19       ` Marek Vasut
2012-09-25  0:37         ` Graeme Russ
2012-09-25  8:43           ` Tomas Hlavacek
2012-09-25  9:09             ` Graeme Russ
2012-09-25 23:04               ` Graeme Russ
2012-09-26 10:16                 ` Tomas Hlavacek
2012-09-26 23:03                   ` Graeme Russ
2012-09-24  0:00   ` Graeme Russ
2012-09-24  0:35     ` Tomas Hlavacek
2012-09-24  0:46       ` Graeme Russ
2012-10-24 23:49 ` [U-Boot] [PATCH v9] [RFC] Add dmmalloc module for DM Tomas Hlavacek
2012-10-25  1:40   ` Graeme Russ
2012-10-25 19:16     ` Tomas Hlavacek
2012-10-25 23:04       ` Graeme Russ
2012-10-28 23:20 ` [U-Boot] [PATCH v10] " Tomas Hlavacek
2013-11-05 15:26   ` Mateusz Zalega
2013-11-05 17:17     ` Tom Rini
2013-11-05 17:26       ` Mateusz Zalega

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=1346071331-28989-1-git-send-email-tmshlvck@gmail.com \
    --to=tmshlvck@gmail.com \
    --cc=u-boot@lists.denx.de \
    /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.