Signed-off-by: Mark Cave-Ayland mark.cave-ayland@siriusit.co.uk --- openbios-devel/arch/sparc32/build.xml | 1 + openbios-devel/arch/sparc32/lib.c | 10 ++ openbios-devel/arch/sparc32/ofmem_sparc32.c | 135 +++++++++++++++++++++ openbios-devel/config/examples/sparc32_config.xml | 2 + 4 files changed, 148 insertions(+), 0 deletions(-) create mode 100644 openbios-devel/arch/sparc32/ofmem_sparc32.c
diff --git a/openbios-devel/arch/sparc32/build.xml b/openbios-devel/arch/sparc32/build.xml index 222dfb7..3d2f71d 100644 --- a/openbios-devel/arch/sparc32/build.xml +++ b/openbios-devel/arch/sparc32/build.xml @@ -15,6 +15,7 @@ <object source="udiv.S"/> <object source="linux_load.c"/> <object source="sys_info.c"/> + <object source="ofmem_sparc32.c"/> <object source="romvec.c"/> <object source="call-romvec.S"/> <object source="entry.S"/> diff --git a/openbios-devel/arch/sparc32/lib.c b/openbios-devel/arch/sparc32/lib.c index a30729f..10599ce 100644 --- a/openbios-devel/arch/sparc32/lib.c +++ b/openbios-devel/arch/sparc32/lib.c @@ -497,6 +497,16 @@ void obp_dumb_munmap(__attribute__((unused)) char *va, DPRINTF("obp_dumb_munmap: virta 0x%x, sz %d\n", (unsigned int)va, size); }
+void ofmem_arch_unmap_pages(ucell virt, ucell size) +{ + /* Currently do nothing */ +} + +void ofmem_arch_early_map_pages(phys_addr_t phys, ucell virt, ucell size, ucell mode) +{ + /* Currently do nothing */ +} + char *obp_dumb_memalloc(char *va, unsigned int size) { size = (size + 7) & ~7; diff --git a/openbios-devel/arch/sparc32/ofmem_sparc32.c b/openbios-devel/arch/sparc32/ofmem_sparc32.c new file mode 100644 index 0000000..fffd32a --- /dev/null +++ b/openbios-devel/arch/sparc32/ofmem_sparc32.c @@ -0,0 +1,135 @@ +/* + * <ofmem_sparc32.c> + * + * OF Memory manager + * + * Copyright (C) 1999-2004 Samuel Rydh (samuel@ibrium.se) + * Copyright (C) 2004 Stefan Reinauer + * + * 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 + * + */ + +#include "config.h" +#include "libopenbios/bindings.h" +#include "libc/string.h" +#include "libopenbios/ofmem.h" +#include "asm/asi.h" +#include "pgtsrmmu.h" + +#define OF_MALLOC_BASE ((char*)OFMEM + ALIGN_SIZE(sizeof(ofmem_t), 8)) + +/* Temporarily very small */ +#define MEMSIZE (1 * 1024) +static union { + char memory[MEMSIZE]; + ofmem_t ofmem; +} s_ofmem_data; + +#define OFMEM (&s_ofmem_data.ofmem) +#define TOP_OF_RAM (s_ofmem_data.memory + MEMSIZE) + +translation_t **g_ofmem_translations = &s_ofmem_data.ofmem.trans; + +extern uint32_t qemu_mem_size; + +static inline size_t ALIGN_SIZE(size_t x, size_t a) +{ + return (x + a - 1) & ~(a-1); +} + +static ucell get_heap_top( void ) +{ + return (ucell)TOP_OF_RAM; +} + +ofmem_t* ofmem_arch_get_private(void) +{ + return OFMEM; +} + +void* ofmem_arch_get_malloc_base(void) +{ + return OF_MALLOC_BASE; +} + +ucell ofmem_arch_get_heap_top(void) +{ + return get_heap_top(); +} + +ucell ofmem_arch_get_virt_top(void) +{ + return (ucell)TOP_OF_RAM; +} + +phys_addr_t ofmem_arch_get_phys_top(void) +{ + ofmem_t *ofmem = ofmem_arch_get_private(); + + return (uintptr_t)ofmem->ramsize - 0x1000000; +} + +retain_t *ofmem_arch_get_retained(void) +{ + /* Not used */ + return 0; +} + +int ofmem_arch_get_physaddr_cellsize(void) +{ + return 2; +} + +int ofmem_arch_encode_physaddr(ucell *p, phys_addr_t value) +{ + int n = 0; + + p[n++] = value >> 32; + p[n++] = value; + + return n; +} + +int ofmem_arch_get_translation_entry_size(void) +{ + /* Return size of a single MMU package translation property entry in cells */ + return 3; +} + +void ofmem_arch_create_translation_entry(ucell *transentry, translation_t *t) +{ + /* Generate translation property entry for SPARC. While there is no + formal documentation for this, both Linux kernel and OpenSolaris sources + expect a translation property entry to have the following layout: + + virtual address + length + mode + */ + + transentry[0] = t->virt; + transentry[1] = t->size; + transentry[2] = t->mode; +} + +/************************************************************************/ +/* misc */ +/************************************************************************/ + +ucell ofmem_arch_default_translation_mode( phys_addr_t phys ) +{ + return SRMMU_REF | SRMMU_CACHE | SRMMU_PRIV; +} + +/************************************************************************/ +/* init / cleanup */ +/************************************************************************/ + +void ofmem_init( void ) +{ + memset(&s_ofmem_data, 0, sizeof(s_ofmem_data)); + s_ofmem_data.ofmem.ramsize = qemu_mem_size; +} diff --git a/openbios-devel/config/examples/sparc32_config.xml b/openbios-devel/config/examples/sparc32_config.xml index 233bacb..ba4b7d7 100644 --- a/openbios-devel/config/examples/sparc32_config.xml +++ b/openbios-devel/config/examples/sparc32_config.xml @@ -26,6 +26,8 @@ <option name="CONFIG_DEBLOCKER" type="boolean" value="true"/> <option name="CONFIG_FONT_8X8" type="boolean" value="true"/> <option name="CONFIG_FONT_8X16" type="boolean" value="false"/> + <option name="CONFIG_OFMEM" type="boolean" value="true"/> + <option name="CONFIG_OFMEM_MALLOC_ALIGN" type="integer" value="8"/> <option name="CONFIG_LOADER_AOUT" type="boolean" value="true"/> <option name="CONFIG_LOADER_BOOTINFO" type="boolean" value="false"/> <option name="CONFIG_LOADER_ELF" type="boolean" value="true"/>