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| author | Vladimir Serbinenko <phcoder@gmail.com> | 2014-11-09 03:37:28 +0100 |
|---|---|---|
| committer | Vladimir Serbinenko <phcoder@gmail.com> | 2014-11-19 20:56:59 +0100 |
| commit | 9acc1e8dfcf43d238354db61576efce6697d081a (patch) | |
| tree | 11e424c5c4c3cf2e423b4de2c3fb01e182896fa5 /src/arch/x86/boot | |
| parent | 663be6e9f2773c98c9850b7e2797490b5f6caf8b (diff) | |
acpigen: Use implicit length patching in acpigen_write_resourcetemplate_footer
Change-Id: Ic177720b074fed13a17454dcb6765ac298365624
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7366
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Diffstat (limited to 'src/arch/x86/boot')
| -rw-r--r-- | src/arch/x86/boot/acpigen.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/src/arch/x86/boot/acpigen.c b/src/arch/x86/boot/acpigen.c index f714d5985b..cc9f9abc48 100644 --- a/src/arch/x86/boot/acpigen.c +++ b/src/arch/x86/boot/acpigen.c @@ -382,13 +382,13 @@ int acpigen_write_empty_PTC(void) /* ControlRegister */ rlen = acpigen_write_resourcetemplate_header(); rlen += acpigen_write_register(&addr); - len += acpigen_write_resourcetemplate_footer(rlen); + len += acpigen_write_resourcetemplate_footer(); len += rlen; /* StatusRegister */ rlen = acpigen_write_resourcetemplate_header(); rlen += acpigen_write_register(&addr); - len += acpigen_write_resourcetemplate_footer(rlen); + len += acpigen_write_resourcetemplate_footer(); len += rlen; acpigen_patch_len(len - 1); @@ -535,7 +535,7 @@ int acpigen_write_CST_package_entry(acpi_cstate_t *cstate) acpigen_write_register(&cstate->resource); end = acpigen_get_current(); len += end - start; - len += acpigen_write_resourcetemplate_footer(len); + len += acpigen_write_resourcetemplate_footer(); len += len0; len += acpigen_write_dword(cstate->ctype); len += acpigen_write_dword(cstate->latency); @@ -713,20 +713,24 @@ int acpigen_write_resourcetemplate_header(void) return len; } -int acpigen_write_resourcetemplate_footer(int len) +int acpigen_write_resourcetemplate_footer(void) { char *p = len_stack[--ltop]; + int len; /* * end tag (acpi 4.0 Section 6.4.2.8) * 0x79 <checksum> * 0x00 is treated as a good checksum according to the spec * and is what iasl generates. */ - len += acpigen_emit_byte(0x79); - len += acpigen_emit_byte(0x00); + acpigen_emit_byte(0x79); + acpigen_emit_byte(0x00); + + len = gencurrent - p; + /* patch len word */ - p[0] = (len-6) & 0xff; - p[1] = ((len-6) >> 8) & 0xff; + p[0] = len & 0xff; + p[1] = (len >> 8) & 0xff; /* patch len field */ acpigen_patch_len(len-1); return 2; @@ -773,7 +777,7 @@ int acpigen_write_mainboard_resource_template(void) end = acpigen_get_current(); len += end-start; - len += acpigen_write_resourcetemplate_footer(len); + len += acpigen_write_resourcetemplate_footer(); return len; } |