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| author | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
|---|---|---|
| committer | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
| commit | 9e80202352dd49bdd9e67b8b906d86f058431505 (patch) | |
| tree | 5673c17aad6e3833da8c4ff21b5a11f666ec9fbe /src/roms/openbios/arch/sparc64/context.h | |
| download | hqemu-master.zip hqemu-master.tar.gz | |
Diffstat (limited to 'src/roms/openbios/arch/sparc64/context.h')
| -rw-r--r-- | src/roms/openbios/arch/sparc64/context.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/roms/openbios/arch/sparc64/context.h b/src/roms/openbios/arch/sparc64/context.h new file mode 100644 index 0000000..2756fa1 --- /dev/null +++ b/src/roms/openbios/arch/sparc64/context.h @@ -0,0 +1,33 @@ +#ifndef SPARC64_CONTEXT_H +#define SPARC64_CONTEXT_H + +#define STACK_BIAS 2047 + +struct context { + /* General registers */ + uint64_t regs[32]; + uint64_t pc; + uint64_t npc; +#define REG_O0 8 +#define REG_SP 14 +#define SP_LOC(ctx) (&(ctx)->regs[REG_SP]) + /* Flags */ + /* Optional stack contents */ + uint64_t return_addr; + uint64_t param[0]; +}; + +/* Create a new context in the given stack */ +struct context * +init_context(uint8_t *stack, uint64_t stack_size, int num_param); + +/* Switch context */ +struct context *switch_to(struct context *); + +/* Holds physical address of boot context */ +extern unsigned long __boot_ctx; + +/* This can always be safely used to refer to the boot context */ +#define boot_ctx ((struct context *) phys_to_virt(__boot_ctx)) + +#endif /* SPARC64_CONTEXT_H */ |
