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acpigen: Remove all explicit length tracking 

Change-Id: I88248d78c01b4b4e42a097889b5f4ddfdac3d966
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7367
Tested-by: build bot (Jenkins)
Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
This commit is contained in:
Vladimir Serbinenko 2014-11-09 03:51:32 +01:00
parent 8104da771c
commit 9bb5c5c402
7 changed files with 212 additions and 315 deletions
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381
src/arch/x86/boot/acpigen.c
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@ -37,13 +37,12 @@ static char *gencurrent;
char *len_stack[ACPIGEN_LENSTACK_SIZE]; char *len_stack[ACPIGEN_LENSTACK_SIZE];
int ltop = 0; int ltop = 0;
int acpigen_write_len_f(void) void acpigen_write_len_f(void)
{ {
ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1)) ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1))
len_stack[ltop++] = gencurrent; len_stack[ltop++] = gencurrent;
acpigen_emit_byte(0); acpigen_emit_byte(0);
acpigen_emit_byte(0); acpigen_emit_byte(0);
return 2;
} }
void acpigen_pop_len(void) void acpigen_pop_len(void)
@ -69,31 +68,27 @@ char *acpigen_get_current(void)
return gencurrent; return gencurrent;
} }
int acpigen_emit_byte(unsigned char b) void acpigen_emit_byte(unsigned char b)
{ {
(*gencurrent++) = b; (*gencurrent++) = b;
return 1;
} }
int acpigen_write_package(int nr_el) void acpigen_write_package(int nr_el)
{ {
int len;
/* package op */ /* package op */
acpigen_emit_byte(0x12); acpigen_emit_byte(0x12);
len = acpigen_write_len_f(); acpigen_write_len_f();
acpigen_emit_byte(nr_el); acpigen_emit_byte(nr_el);
return len + 2;
} }
int acpigen_write_byte(unsigned int data) void acpigen_write_byte(unsigned int data)
{ {
/* byte op */ /* byte op */
acpigen_emit_byte(0xa); acpigen_emit_byte(0xa);
acpigen_emit_byte(data & 0xff); acpigen_emit_byte(data & 0xff);
return 2;
} }
int acpigen_write_dword(unsigned int data) void acpigen_write_dword(unsigned int data)
{ {
/* dword op */ /* dword op */
acpigen_emit_byte(0xc); acpigen_emit_byte(0xc);
@ -101,10 +96,9 @@ int acpigen_write_dword(unsigned int data)
acpigen_emit_byte((data >> 8) & 0xff); acpigen_emit_byte((data >> 8) & 0xff);
acpigen_emit_byte((data >> 16) & 0xff); acpigen_emit_byte((data >> 16) & 0xff);
acpigen_emit_byte((data >> 24) & 0xff); acpigen_emit_byte((data >> 24) & 0xff);
return 5;
} }
int acpigen_write_qword(uint64_t data) void acpigen_write_qword(uint64_t data)
{ {
/* qword op */ /* qword op */
acpigen_emit_byte(0xe); acpigen_emit_byte(0xe);
@ -116,40 +110,32 @@ int acpigen_write_qword(uint64_t data)
acpigen_emit_byte((data >> 40) & 0xff); acpigen_emit_byte((data >> 40) & 0xff);
acpigen_emit_byte((data >> 48) & 0xff); acpigen_emit_byte((data >> 48) & 0xff);
acpigen_emit_byte((data >> 56) & 0xff); acpigen_emit_byte((data >> 56) & 0xff);
return 9;
} }
int acpigen_write_name_byte(const char *name, uint8_t val) void acpigen_write_name_byte(const char *name, uint8_t val)
{ {
int len; acpigen_write_name(name);
len = acpigen_write_name(name); acpigen_write_byte(val);
len += acpigen_write_byte(val);
return len;
} }
int acpigen_write_name_dword(const char *name, uint32_t val) void acpigen_write_name_dword(const char *name, uint32_t val)
{ {
int len; acpigen_write_name(name);
len = acpigen_write_name(name); acpigen_write_dword(val);
len += acpigen_write_dword(val);
return len;
} }
int acpigen_write_name_qword(const char *name, uint64_t val) void acpigen_write_name_qword(const char *name, uint64_t val)
{ {
int len; acpigen_write_name(name);
len = acpigen_write_name(name); acpigen_write_qword(val);
len += acpigen_write_qword(val);
return len;
} }
int acpigen_emit_stream(const char *data, int size) void acpigen_emit_stream(const char *data, int size)
{ {
int i; int i;
for (i = 0; i < size; i++) { for (i = 0; i < size; i++) {
acpigen_emit_byte(data[i]); acpigen_emit_byte(data[i]);
} }
return size;
} }
/* /*
@ -161,39 +147,36 @@ int acpigen_emit_stream(const char *data, int size)
* Check sections 5.3, 18.2.2 and 18.4 of ACPI spec 3.0 for details. * Check sections 5.3, 18.2.2 and 18.4 of ACPI spec 3.0 for details.
*/ */
static int acpigen_emit_simple_namestring(const char *name) { static void acpigen_emit_simple_namestring(const char *name) {
int i, len = 0; int i;
char ud[] = "____"; char ud[] = "____";
for (i = 0; i < 4; i++) { for (i = 0; i < 4; i++) {
if ((name[i] == '\0') || (name[i] == '.')) { if ((name[i] == '\0') || (name[i] == '.')) {
len += acpigen_emit_stream(ud, 4 - i); acpigen_emit_stream(ud, 4 - i);
break; break;
} else { } else {
len += acpigen_emit_byte(name[i]); acpigen_emit_byte(name[i]);
} }
} }
return len;
} }
static int acpigen_emit_double_namestring(const char *name, int dotpos) { static void acpigen_emit_double_namestring(const char *name, int dotpos) {
int len = 0;
/* mark dual name prefix */ /* mark dual name prefix */
len += acpigen_emit_byte(0x2e); acpigen_emit_byte(0x2e);
len += acpigen_emit_simple_namestring(name); acpigen_emit_simple_namestring(name);
len += acpigen_emit_simple_namestring(&name[dotpos + 1]); acpigen_emit_simple_namestring(&name[dotpos + 1]);
return len;
} }
static int acpigen_emit_multi_namestring(const char *name) { static void acpigen_emit_multi_namestring(const char *name) {
int len = 0, count = 0; int count = 0;
unsigned char *pathlen; unsigned char *pathlen;
/* mark multi name prefix */ /* mark multi name prefix */
len += acpigen_emit_byte(0x2f); acpigen_emit_byte(0x2f);
len += acpigen_emit_byte(0x0); acpigen_emit_byte(0x0);
pathlen = ((unsigned char *) acpigen_get_current()) - 1; pathlen = ((unsigned char *) acpigen_get_current()) - 1;
while (name[0] != '\0') { while (name[0] != '\0') {
len += acpigen_emit_simple_namestring(name); acpigen_emit_simple_namestring(name);
/* find end or next entity */ /* find end or next entity */
while ((name[0] != '.') && (name[0] != '\0')) while ((name[0] != '.') && (name[0] != '\0'))
name++; name++;
@ -204,32 +187,30 @@ static int acpigen_emit_multi_namestring(const char *name) {
} }
pathlen[0] = count; pathlen[0] = count;
return len;
} }
int acpigen_emit_namestring(const char *namepath) { void acpigen_emit_namestring(const char *namepath) {
int dotcount = 0, i; int dotcount = 0, i;
int dotpos = 0; int dotpos = 0;
int len = 0;
/* We can start with a '\'. */ /* We can start with a '\'. */
if (namepath[0] == '\\') { if (namepath[0] == '\\') {
len += acpigen_emit_byte('\\'); acpigen_emit_byte('\\');
namepath++; namepath++;
} }
/* And there can be any number of '^' */ /* And there can be any number of '^' */
while (namepath[0] == '^') { while (namepath[0] == '^') {
len += acpigen_emit_byte('^'); acpigen_emit_byte('^');
namepath++; namepath++;
} }
/* If we have only \\ or only ^...^. Then we need to put a null /* If we have only \\ or only ^...^. Then we need to put a null
name (0x00). */ name (0x00). */
if(namepath[0] == '\0') { if(namepath[0] == '\0') {
len += acpigen_emit_byte(0x00); acpigen_emit_byte(0x00);
return len; return;
} }
i = 0; i = 0;
@ -242,58 +223,53 @@ int acpigen_emit_namestring(const char *namepath) {
} }
if (dotcount == 0) { if (dotcount == 0) {
len += acpigen_emit_simple_namestring(namepath); acpigen_emit_simple_namestring(namepath);
} else if (dotcount == 1) { } else if (dotcount == 1) {
len += acpigen_emit_double_namestring(namepath, dotpos); acpigen_emit_double_namestring(namepath, dotpos);
} else { } else {
len += acpigen_emit_multi_namestring(namepath); acpigen_emit_multi_namestring(namepath);
} }
return len;
} }
int acpigen_write_name(const char *name) void acpigen_write_name(const char *name)
{ {
int len;
/* name op */ /* name op */
len = acpigen_emit_byte(0x8); acpigen_emit_byte(0x8);
return len + acpigen_emit_namestring(name); acpigen_emit_namestring(name);
} }
int acpigen_write_scope(const char *name) void acpigen_write_scope(const char *name)
{ {
int len;
/* scope op */ /* scope op */
len = acpigen_emit_byte(0x10); acpigen_emit_byte(0x10);
len += acpigen_write_len_f(); acpigen_write_len_f();
return len + acpigen_emit_namestring(name); acpigen_emit_namestring(name);
} }
int acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len) void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len)
{ {
/* /*
Processor (\_PR.CPUcpuindex, cpuindex, pblock_addr, pblock_len) Processor (\_PR.CPUcpuindex, cpuindex, pblock_addr, pblock_len)
{ {
*/ */
char pscope[16]; char pscope[16];
int len;
/* processor op */ /* processor op */
acpigen_emit_byte(0x5b); acpigen_emit_byte(0x5b);
acpigen_emit_byte(0x83); acpigen_emit_byte(0x83);
len = acpigen_write_len_f(); acpigen_write_len_f();
snprintf(pscope, sizeof (pscope), snprintf(pscope, sizeof (pscope),
"\\_PR.CP%02d", (unsigned int) cpuindex); "\\_PR.CP%02d", (unsigned int) cpuindex);
len += acpigen_emit_namestring(pscope); acpigen_emit_namestring(pscope);
acpigen_emit_byte(cpuindex); acpigen_emit_byte(cpuindex);
acpigen_emit_byte(pblock_addr & 0xff); acpigen_emit_byte(pblock_addr & 0xff);
acpigen_emit_byte((pblock_addr >> 8) & 0xff); acpigen_emit_byte((pblock_addr >> 8) & 0xff);
acpigen_emit_byte((pblock_addr >> 16) & 0xff); acpigen_emit_byte((pblock_addr >> 16) & 0xff);
acpigen_emit_byte((pblock_addr >> 24) & 0xff); acpigen_emit_byte((pblock_addr >> 24) & 0xff);
acpigen_emit_byte(pblock_len); acpigen_emit_byte(pblock_len);
return 6 + 2 + len;
} }
int acpigen_write_empty_PCT(void) void acpigen_write_empty_PCT(void)
{ {
/* /*
Name (_PCT, Package (0x02) Name (_PCT, Package (0x02)
@ -326,10 +302,10 @@ int acpigen_write_empty_PCT(void)
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000058 "........" */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000058 "........" */
0x00, 0x79, 0x00 0x00, 0x79, 0x00
}; };
return acpigen_emit_stream(stream, ARRAY_SIZE(stream)); acpigen_emit_stream(stream, ARRAY_SIZE(stream));
} }
int acpigen_write_empty_PTC(void) void acpigen_write_empty_PTC(void)
{ {
/* /*
Name (_PTC, Package (0x02) Name (_PTC, Package (0x02)
@ -353,7 +329,6 @@ int acpigen_write_empty_PTC(void)
} }
}) })
*/ */
int len, nlen, rlen;
acpi_addr_t addr = { acpi_addr_t addr = {
.space_id = ACPI_ADDRESS_SPACE_FIXED, .space_id = ACPI_ADDRESS_SPACE_FIXED,
.bit_width = 0, .bit_width = 0,
@ -365,55 +340,44 @@ int acpigen_write_empty_PTC(void)
.addrh = 0, .addrh = 0,
}; };
nlen = acpigen_write_name("_PTC"); acpigen_write_name("_PTC");
len = acpigen_write_package(2); acpigen_write_package(2);
/* ControlRegister */ /* ControlRegister */
rlen = acpigen_write_resourcetemplate_header(); acpigen_write_resourcetemplate_header();
rlen += acpigen_write_register(&addr); acpigen_write_register(&addr);
len += acpigen_write_resourcetemplate_footer(); acpigen_write_resourcetemplate_footer();
len += rlen;
/* StatusRegister */ /* StatusRegister */
rlen = acpigen_write_resourcetemplate_header(); acpigen_write_resourcetemplate_header();
rlen += acpigen_write_register(&addr); acpigen_write_register(&addr);
len += acpigen_write_resourcetemplate_footer(); acpigen_write_resourcetemplate_footer();
len += rlen;
acpigen_pop_len(); acpigen_pop_len();
return len + nlen;
} }
int acpigen_write_method(const char *name, int nargs) void acpigen_write_method(const char *name, int nargs)
{ {
int len;
/* method op */ /* method op */
len = acpigen_emit_byte(0x14); acpigen_emit_byte(0x14);
len += acpigen_write_len_f(); acpigen_write_len_f();
len += acpigen_emit_namestring(name); acpigen_emit_namestring(name);
len += acpigen_emit_byte(nargs & 7); acpigen_emit_byte(nargs & 7);
return len;
} }
int acpigen_write_device(const char *name) void acpigen_write_device(const char *name)
{ {
int len;
/* method op */ /* method op */
len = acpigen_emit_byte(0x5b); acpigen_emit_byte(0x5b);
len += acpigen_emit_byte(0x82); acpigen_emit_byte(0x82);
len += acpigen_write_len_f(); acpigen_write_len_f();
len += acpigen_emit_namestring(name); acpigen_emit_namestring(name);
return len;
} }
/* /*
* Generates a func with max supported P-states. * Generates a func with max supported P-states.
*/ */
int acpigen_write_PPC(u8 nr) void acpigen_write_PPC(u8 nr)
{ {
/* /*
Method (_PPC, 0, NotSerialized) Method (_PPC, 0, NotSerialized)
@ -421,23 +385,19 @@ int acpigen_write_PPC(u8 nr)
Return (nr) Return (nr)
} }
*/ */
int len; acpigen_write_method("_PPC", 0);
len = acpigen_write_method("_PPC", 0);
/* return */ /* return */
acpigen_emit_byte(0xa4); acpigen_emit_byte(0xa4);
/* arg */ /* arg */
len += acpigen_write_byte(nr); acpigen_write_byte(nr);
/* add all single bytes */
len += 1;
acpigen_pop_len(); acpigen_pop_len();
return len;
} }
/* /*
* Generates a func with max supported P-states saved * Generates a func with max supported P-states saved
* in the variable PPCM. * in the variable PPCM.
*/ */
int acpigen_write_PPC_NVS(void) void acpigen_write_PPC_NVS(void)
{ {
/* /*
Method (_PPC, 0, NotSerialized) Method (_PPC, 0, NotSerialized)
@ -445,20 +405,15 @@ int acpigen_write_PPC_NVS(void)
Return (PPCM) Return (PPCM)
} }
*/ */
int len; acpigen_write_method("_PPC", 0);
len = acpigen_write_method("_PPC", 0);
/* return */ /* return */
acpigen_emit_byte(0xa4); acpigen_emit_byte(0xa4);
/* arg */ /* arg */
len += acpigen_emit_namestring("PPCM"); acpigen_emit_namestring("PPCM");
/* add all single bytes */
len += 1;
acpigen_pop_len(); acpigen_pop_len();
return len;
} }
int acpigen_write_TPC(const char *gnvs_tpc_limit) void acpigen_write_TPC(const char *gnvs_tpc_limit)
{ {
/* /*
// Sample _TPC method // Sample _TPC method
@ -467,88 +422,68 @@ int acpigen_write_TPC(const char *gnvs_tpc_limit)
Return (\TLVL) Return (\TLVL)
} }
*/ */
int len; acpigen_write_method("_TPC", 0);
acpigen_emit_byte(0xa4); /* ReturnOp */
len = acpigen_write_method("_TPC", 0); acpigen_emit_namestring(gnvs_tpc_limit);
len += acpigen_emit_byte(0xa4); /* ReturnOp */
len += acpigen_emit_namestring(gnvs_tpc_limit);
acpigen_pop_len(); acpigen_pop_len();
return len;
} }
int acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat,
u32 busmLat, u32 control, u32 status) u32 busmLat, u32 control, u32 status)
{ {
int len; acpigen_write_package(6);
len = acpigen_write_package(6); acpigen_write_dword(coreFreq);
len += acpigen_write_dword(coreFreq); acpigen_write_dword(power);
len += acpigen_write_dword(power); acpigen_write_dword(transLat);
len += acpigen_write_dword(transLat); acpigen_write_dword(busmLat);
len += acpigen_write_dword(busmLat); acpigen_write_dword(control);
len += acpigen_write_dword(control); acpigen_write_dword(status);
len += acpigen_write_dword(status);
// pkglen without the len opcode
acpigen_pop_len(); acpigen_pop_len();
printk(BIOS_DEBUG, "PSS: %uMHz power %u control 0x%x status 0x%x\n", printk(BIOS_DEBUG, "PSS: %uMHz power %u control 0x%x status 0x%x\n",
coreFreq, power, control, status); coreFreq, power, control, status);
return len;
} }
int acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) void acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype)
{ {
int len, lenh, lenp; acpigen_write_name("_PSD");
lenh = acpigen_write_name("_PSD"); acpigen_write_package(1);
lenp = acpigen_write_package(1); acpigen_write_package(5);
len = acpigen_write_package(5); acpigen_write_byte(5); // 5 values
len += acpigen_write_byte(5); // 5 values acpigen_write_byte(0); // revision 0
len += acpigen_write_byte(0); // revision 0 acpigen_write_dword(domain);
len += acpigen_write_dword(domain); acpigen_write_dword(coordtype);
len += acpigen_write_dword(coordtype); acpigen_write_dword(numprocs);
len += acpigen_write_dword(numprocs);
acpigen_pop_len(); acpigen_pop_len();
len += lenp;
acpigen_pop_len(); acpigen_pop_len();
return len + lenh;
} }
int acpigen_write_CST_package_entry(acpi_cstate_t *cstate) void acpigen_write_CST_package_entry(acpi_cstate_t *cstate)
{ {
int len, len0; acpigen_write_package(4);
char *start, *end; acpigen_write_resourcetemplate_header();
len0 = acpigen_write_package(4);
len = acpigen_write_resourcetemplate_header();
start = acpigen_get_current();
acpigen_write_register(&cstate->resource); acpigen_write_register(&cstate->resource);
end = acpigen_get_current(); acpigen_write_resourcetemplate_footer();
len += end - start; acpigen_write_dword(cstate->ctype);
len += acpigen_write_resourcetemplate_footer(); acpigen_write_dword(cstate->latency);
len += len0; acpigen_write_dword(cstate->power);
len += acpigen_write_dword(cstate->ctype);
len += acpigen_write_dword(cstate->latency);
len += acpigen_write_dword(cstate->power);
acpigen_pop_len(); acpigen_pop_len();
return len;
} }
int acpigen_write_CST_package(acpi_cstate_t *cstate, int nentries) void acpigen_write_CST_package(acpi_cstate_t *cstate, int nentries)
{ {
int len, lenh, lenp, i; int i;
lenh = acpigen_write_name("_CST"); acpigen_write_name("_CST");
lenp = acpigen_write_package(nentries+1); acpigen_write_package(nentries+1);
len = acpigen_write_dword(nentries); acpigen_write_dword(nentries);
for (i = 0; i < nentries; i++) for (i = 0; i < nentries; i++)
len += acpigen_write_CST_package_entry(cstate + i); acpigen_write_CST_package_entry(cstate + i);
len += lenp;
acpigen_pop_len(); acpigen_pop_len();
return len + lenh;
} }
int acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list) void acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list)
{ {
/* /*
Sample _TSS package with 100% and 50% duty cycles Sample _TSS package with 100% and 50% duty cycles
@ -558,48 +493,43 @@ int acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list)
Package(){50, 520, 0, 0x18, 0) Package(){50, 520, 0, 0x18, 0)
}) })
*/ */
int i, len, plen, nlen; int i;
acpi_tstate_t *tstate = tstate_list; acpi_tstate_t *tstate = tstate_list;
nlen = acpigen_write_name("_TSS"); acpigen_write_name("_TSS");
plen = acpigen_write_package(entries); acpigen_write_package(entries);
for (i = 0; i < entries; i++) { for (i = 0; i < entries; i++) {
len = acpigen_write_package(5); acpigen_write_package(5);
len += acpigen_write_dword(tstate->percent); acpigen_write_dword(tstate->percent);
len += acpigen_write_dword(tstate->power); acpigen_write_dword(tstate->power);
len += acpigen_write_dword(tstate->latency); acpigen_write_dword(tstate->latency);
len += acpigen_write_dword(tstate->control); acpigen_write_dword(tstate->control);
len += acpigen_write_dword(tstate->status); acpigen_write_dword(tstate->status);
acpigen_pop_len(); acpigen_pop_len();
tstate++; tstate++;
plen += len;
} }
acpigen_pop_len(); acpigen_pop_len();
return plen + nlen;
} }
int acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) void acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype)
{ {
int len, lenh, lenp; acpigen_write_name("_TSD");
lenh = acpigen_write_name("_TSD"); acpigen_write_package(1);
lenp = acpigen_write_package(1); acpigen_write_package(5);
len = acpigen_write_package(5); acpigen_write_byte(5); // 5 values
len += acpigen_write_byte(5); // 5 values acpigen_write_byte(0); // revision 0
len += acpigen_write_byte(0); // revision 0 acpigen_write_dword(domain);
len += acpigen_write_dword(domain); acpigen_write_dword(coordtype);
len += acpigen_write_dword(coordtype); acpigen_write_dword(numprocs);
len += acpigen_write_dword(numprocs);
acpigen_pop_len(); acpigen_pop_len();
len += lenp;
acpigen_pop_len(); acpigen_pop_len();
return len + lenh;
} }
int acpigen_write_mem32fixed(int readwrite, u32 base, u32 size) void acpigen_write_mem32fixed(int readwrite, u32 base, u32 size)
{ {
/* /*
* acpi 4.0 section 6.4.3.4: 32-Bit Fixed Memory Range Descriptor * acpi 4.0 section 6.4.3.4: 32-Bit Fixed Memory Range Descriptor
@ -621,10 +551,9 @@ int acpigen_write_mem32fixed(int readwrite, u32 base, u32 size)
acpigen_emit_byte((size >> 8) & 0xff); acpigen_emit_byte((size >> 8) & 0xff);
acpigen_emit_byte((size >> 16) & 0xff); acpigen_emit_byte((size >> 16) & 0xff);
acpigen_emit_byte((size >> 24) & 0xff); acpigen_emit_byte((size >> 24) & 0xff);
return 12;
} }
int acpigen_write_register(acpi_addr_t *addr) void acpigen_write_register(acpi_addr_t *addr)
{ {
acpigen_emit_byte(0x82); /* Register Descriptor */ acpigen_emit_byte(0x82); /* Register Descriptor */
acpigen_emit_byte(0x0c); /* Register Length 7:0 */ acpigen_emit_byte(0x0c); /* Register Length 7:0 */
@ -641,10 +570,9 @@ int acpigen_write_register(acpi_addr_t *addr)
acpigen_emit_byte((addr->addrh >> 8) & 0xff); acpigen_emit_byte((addr->addrh >> 8) & 0xff);
acpigen_emit_byte((addr->addrh >> 16) & 0xff); acpigen_emit_byte((addr->addrh >> 16) & 0xff);
acpigen_emit_byte((addr->addrh >> 24) & 0xff); acpigen_emit_byte((addr->addrh >> 24) & 0xff);
return 15;
} }
int acpigen_write_irq(u16 mask) void acpigen_write_irq(u16 mask)
{ {
/* /*
* acpi 3.0b section 6.4.2.1: IRQ Descriptor * acpi 3.0b section 6.4.2.1: IRQ Descriptor
@ -656,10 +584,9 @@ int acpigen_write_irq(u16 mask)
acpigen_emit_byte(0x22); acpigen_emit_byte(0x22);
acpigen_emit_byte(mask & 0xff); acpigen_emit_byte(mask & 0xff);
acpigen_emit_byte((mask >> 8) & 0xff); acpigen_emit_byte((mask >> 8) & 0xff);
return 3;
} }
int acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16) void acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16)
{ {
/* /*
* acpi 4.0 section 6.4.2.6: I/O Port Descriptor * acpi 4.0 section 6.4.2.6: I/O Port Descriptor
@ -681,28 +608,25 @@ int acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16)
/* alignment for min base */ /* alignment for min base */
acpigen_emit_byte(align & 0xff); acpigen_emit_byte(align & 0xff);
acpigen_emit_byte(len & 0xff); acpigen_emit_byte(len & 0xff);
return 8;
} }
int acpigen_write_resourcetemplate_header(void) void acpigen_write_resourcetemplate_header(void)
{ {
int len;
/* /*
* A ResourceTemplate() is a Buffer() with a * A ResourceTemplate() is a Buffer() with a
* (Byte|Word|DWord) containing the length, followed by one or more * (Byte|Word|DWord) containing the length, followed by one or more
* resource items, terminated by the end tag. * resource items, terminated by the end tag.
* (small item 0xf, len 1) * (small item 0xf, len 1)
*/ */
len = acpigen_emit_byte(0x11); /* Buffer opcode */ acpigen_emit_byte(0x11); /* Buffer opcode */
len += acpigen_write_len_f(); acpigen_write_len_f();
len += acpigen_emit_byte(0x0b); /* Word opcode */ acpigen_emit_byte(0x0b); /* Word opcode */
len_stack[ltop++] = acpigen_get_current(); len_stack[ltop++] = acpigen_get_current();
len += acpigen_emit_byte(0x00); acpigen_emit_byte(0x00);
len += acpigen_emit_byte(0x00); acpigen_emit_byte(0x00);
return len;
} }
int acpigen_write_resourcetemplate_footer(void) void acpigen_write_resourcetemplate_footer(void)
{ {
char *p = len_stack[--ltop]; char *p = len_stack[--ltop];
int len; int len;
@ -722,7 +646,6 @@ int acpigen_write_resourcetemplate_footer(void)
p[1] = (len >> 8) & 0xff; p[1] = (len >> 8) & 0xff;
/* patch len field */ /* patch len field */
acpigen_pop_len(); acpigen_pop_len();
return 2;
} }
static void acpigen_add_mainboard_rsvd_mem32(void *gp, struct device *dev, static void acpigen_add_mainboard_rsvd_mem32(void *gp, struct device *dev,
@ -744,13 +667,9 @@ static void acpigen_add_mainboard_rsvd_io(void *gp, struct device *dev,
} }
} }
int acpigen_write_mainboard_resource_template(void) void acpigen_write_mainboard_resource_template(void)
{ {
int len; acpigen_write_resourcetemplate_header();
char *start;
char *end;
len = acpigen_write_resourcetemplate_header();
start = acpigen_get_current();
/* Add reserved memory ranges. */ /* Add reserved memory ranges. */
search_global_resources( search_global_resources(
@ -764,20 +683,15 @@ int acpigen_write_mainboard_resource_template(void)
IORESOURCE_IO | IORESOURCE_RESERVE, IORESOURCE_IO | IORESOURCE_RESERVE,
acpigen_add_mainboard_rsvd_io, 0); acpigen_add_mainboard_rsvd_io, 0);
end = acpigen_get_current(); acpigen_write_resourcetemplate_footer();
len += end-start;
len += acpigen_write_resourcetemplate_footer();
return len;
} }
int acpigen_write_mainboard_resources(const char *scope, const char *name) void acpigen_write_mainboard_resources(const char *scope, const char *name)
{ {
int len; acpigen_write_scope(scope);
len = acpigen_write_scope(scope); acpigen_write_name(name);
len += acpigen_write_name(name); acpigen_write_mainboard_resource_template();
len += acpigen_write_mainboard_resource_template();
acpigen_pop_len(); acpigen_pop_len();
return len;
} }
static int hex2bin(const char c) static int hex2bin(const char c)
@ -789,7 +703,7 @@ static int hex2bin(const char c)
return c - '0'; return c - '0';
} }
int acpigen_emit_eisaid(const char *eisaid) void acpigen_emit_eisaid(const char *eisaid)
{ {
u32 compact = 0; u32 compact = 0;
@ -811,5 +725,4 @@ int acpigen_emit_eisaid(const char *eisaid)
acpigen_emit_byte((compact >> 16) & 0xff); acpigen_emit_byte((compact >> 16) & 0xff);
acpigen_emit_byte((compact >> 8) & 0xff); acpigen_emit_byte((compact >> 8) & 0xff);
acpigen_emit_byte(compact & 0xff); acpigen_emit_byte(compact & 0xff);
return 5;
} }

72
src/arch/x86/include/arch/acpigen.h
View File

@ -25,47 +25,47 @@
#include <stdint.h> #include <stdint.h>
#include <arch/acpi.h> #include <arch/acpi.h>
int acpigen_write_len_f(void); void acpigen_write_len_f(void);
void acpigen_pop_len(void); void acpigen_pop_len(void);
void acpigen_set_current(char *curr); void acpigen_set_current(char *curr);
char *acpigen_get_current(void); char *acpigen_get_current(void);
int acpigen_write_package(int nr_el); void acpigen_write_package(int nr_el);
int acpigen_write_byte(unsigned int data); void acpigen_write_byte(unsigned int data);
int acpigen_emit_byte(unsigned char data); void acpigen_emit_byte(unsigned char data);
int acpigen_emit_stream(const char *data, int size); void acpigen_emit_stream(const char *data, int size);
int acpigen_emit_namestring(const char *namepath); void acpigen_emit_namestring(const char *namepath);
int acpigen_emit_eisaid(const char *eisaid); void acpigen_emit_eisaid(const char *eisaid);
int acpigen_write_dword(unsigned int data); void acpigen_write_dword(unsigned int data);
int acpigen_write_qword(uint64_t data); void acpigen_write_qword(uint64_t data);
int acpigen_write_name(const char *name); void acpigen_write_name(const char *name);
int acpigen_write_name_dword(const char *name, uint32_t val); void acpigen_write_name_dword(const char *name, uint32_t val);
int acpigen_write_name_qword(const char *name, uint64_t val); void acpigen_write_name_qword(const char *name, uint64_t val);
int acpigen_write_name_byte(const char *name, uint8_t val); void acpigen_write_name_byte(const char *name, uint8_t val);
int acpigen_write_scope(const char *name); void acpigen_write_scope(const char *name);
int acpigen_write_method(const char *name, int nargs); void acpigen_write_method(const char *name, int nargs);
int acpigen_write_device(const char *name); void acpigen_write_device(const char *name);
int acpigen_write_PPC(u8 nr); void acpigen_write_PPC(u8 nr);
int acpigen_write_PPC_NVS(void); void acpigen_write_PPC_NVS(void);
int acpigen_write_empty_PCT(void); void acpigen_write_empty_PCT(void);
int acpigen_write_empty_PTC(void); void acpigen_write_empty_PTC(void);
int acpigen_write_TPC(const char *gnvs_tpc_limit); void acpigen_write_TPC(const char *gnvs_tpc_limit);
int acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat, void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat,
u32 control, u32 status); u32 control, u32 status);
typedef enum { SW_ALL=0xfc, SW_ANY=0xfd, HW_ALL=0xfe } PSD_coord; typedef enum { SW_ALL=0xfc, SW_ANY=0xfd, HW_ALL=0xfe } PSD_coord;
int acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype); void acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype);
int acpigen_write_CST_package_entry(acpi_cstate_t *cstate); void acpigen_write_CST_package_entry(acpi_cstate_t *cstate);
int acpigen_write_CST_package(acpi_cstate_t *entry, int nentries); void acpigen_write_CST_package(acpi_cstate_t *entry, int nentries);
int acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len); void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len);
int acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list); void acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list);
int acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype); void acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype);
int acpigen_write_mem32fixed(int readwrite, u32 base, u32 size); void acpigen_write_mem32fixed(int readwrite, u32 base, u32 size);
int acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16); void acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16);
int acpigen_write_register(acpi_addr_t *addr); void acpigen_write_register(acpi_addr_t *addr);
int acpigen_write_resourcetemplate_header(void); void acpigen_write_resourcetemplate_header(void);
int acpigen_write_resourcetemplate_footer(void); void acpigen_write_resourcetemplate_footer(void);
int acpigen_write_mainboard_resource_template(void); void acpigen_write_mainboard_resource_template(void);
int acpigen_write_mainboard_resources(const char *scope, const char *name); void acpigen_write_mainboard_resources(const char *scope, const char *name);
int acpigen_write_irq(u16 mask); void acpigen_write_irq(u16 mask);
int get_cst_entries(acpi_cstate_t **); int get_cst_entries(acpi_cstate_t **);

16
src/cpu/intel/model_2065x/acpi.c
View File

@ -152,31 +152,27 @@ static acpi_tstate_t tss_table_coarse[] = {
{ 13, 125, 0, 0x19, 0 }, { 13, 125, 0, 0x19, 0 },
}; };
static int generate_T_state_entries(int core, int cores_per_package) static void generate_T_state_entries(int core, int cores_per_package)
{ {
int len;
/* Indicate SW_ALL coordination for T-states */ /* Indicate SW_ALL coordination for T-states */
len = acpigen_write_TSD_package(core, cores_per_package, SW_ALL); acpigen_write_TSD_package(core, cores_per_package, SW_ALL);
/* Indicate FFixedHW so OS will use MSR */ /* Indicate FFixedHW so OS will use MSR */
len += acpigen_write_empty_PTC(); acpigen_write_empty_PTC();
/* Set a T-state limit that can be modified in NVS */ /* Set a T-state limit that can be modified in NVS */
len += acpigen_write_TPC("\\TLVL"); acpigen_write_TPC("\\TLVL");
/* /*
* CPUID.(EAX=6):EAX[5] indicates support * CPUID.(EAX=6):EAX[5] indicates support
* for extended throttle levels. * for extended throttle levels.
*/ */
if (cpuid_eax(6) & (1 << 5)) if (cpuid_eax(6) & (1 << 5))
len += acpigen_write_TSS_package( acpigen_write_TSS_package(
ARRAY_SIZE(tss_table_fine), tss_table_fine); ARRAY_SIZE(tss_table_fine), tss_table_fine);
else else
len += acpigen_write_TSS_package( acpigen_write_TSS_package(
ARRAY_SIZE(tss_table_coarse), tss_table_coarse); ARRAY_SIZE(tss_table_coarse), tss_table_coarse);
return len;
} }
static int calculate_power(int tdp, int p1_ratio, int ratio) static int calculate_power(int tdp, int p1_ratio, int ratio)

16
src/cpu/intel/model_206ax/acpi.c
View File

@ -152,31 +152,27 @@ static acpi_tstate_t tss_table_coarse[] = {
{ 13, 125, 0, 0x19, 0 }, { 13, 125, 0, 0x19, 0 },
}; };
static int generate_T_state_entries(int core, int cores_per_package) static void generate_T_state_entries(int core, int cores_per_package)
{ {
int len;
/* Indicate SW_ALL coordination for T-states */ /* Indicate SW_ALL coordination for T-states */
len = acpigen_write_TSD_package(core, cores_per_package, SW_ALL); acpigen_write_TSD_package(core, cores_per_package, SW_ALL);
/* Indicate FFixedHW so OS will use MSR */ /* Indicate FFixedHW so OS will use MSR */
len += acpigen_write_empty_PTC(); acpigen_write_empty_PTC();
/* Set a T-state limit that can be modified in NVS */ /* Set a T-state limit that can be modified in NVS */
len += acpigen_write_TPC("\\TLVL"); acpigen_write_TPC("\\TLVL");
/* /*
* CPUID.(EAX=6):EAX[5] indicates support * CPUID.(EAX=6):EAX[5] indicates support
* for extended throttle levels. * for extended throttle levels.
*/ */
if (cpuid_eax(6) & (1 << 5)) if (cpuid_eax(6) & (1 << 5))
len += acpigen_write_TSS_package( acpigen_write_TSS_package(
ARRAY_SIZE(tss_table_fine), tss_table_fine); ARRAY_SIZE(tss_table_fine), tss_table_fine);
else else
len += acpigen_write_TSS_package( acpigen_write_TSS_package(
ARRAY_SIZE(tss_table_coarse), tss_table_coarse); ARRAY_SIZE(tss_table_coarse), tss_table_coarse);
return len;
} }
static int calculate_power(int tdp, int p1_ratio, int ratio) static int calculate_power(int tdp, int p1_ratio, int ratio)

20
src/soc/intel/broadwell/acpi.c
View File

@ -365,34 +365,30 @@ static acpi_tstate_t tss_table_coarse[] = {
{ 13, 125, 0, 0x19, 0 }, { 13, 125, 0, 0x19, 0 },
}; };
static int generate_T_state_entries(int core, int cores_per_package) static void generate_T_state_entries(int core, int cores_per_package)
{ {
int len;
/* Indicate SW_ALL coordination for T-states */ /* Indicate SW_ALL coordination for T-states */
len = acpigen_write_TSD_package(core, cores_per_package, SW_ALL); acpigen_write_TSD_package(core, cores_per_package, SW_ALL);
/* Indicate FFixedHW so OS will use MSR */ /* Indicate FFixedHW so OS will use MSR */
len += acpigen_write_empty_PTC(); acpigen_write_empty_PTC();
/* Set a T-state limit that can be modified in NVS */ /* Set a T-state limit that can be modified in NVS */
len += acpigen_write_TPC("\\TLVL"); acpigen_write_TPC("\\TLVL");
/* /*
* CPUID.(EAX=6):EAX[5] indicates support * CPUID.(EAX=6):EAX[5] indicates support
* for extended throttle levels. * for extended throttle levels.
*/ */
if (cpuid_eax(6) & (1 << 5)) if (cpuid_eax(6) & (1 << 5))
len += acpigen_write_TSS_package( acpigen_write_TSS_package(
ARRAY_SIZE(tss_table_fine), tss_table_fine); ARRAY_SIZE(tss_table_fine), tss_table_fine);
else else
len += acpigen_write_TSS_package( acpigen_write_TSS_package(
ARRAY_SIZE(tss_table_coarse), tss_table_coarse); ARRAY_SIZE(tss_table_coarse), tss_table_coarse);
return len;
} }
static int generate_C_state_entries(void) static void generate_C_state_entries(void)
{ {
device_t dev = SA_DEV_ROOT; device_t dev = SA_DEV_ROOT;
config_t *config = dev->chip_info; config_t *config = dev->chip_info;
@ -411,7 +407,7 @@ static int generate_C_state_entries(void)
} }
/* Generate C-state tables */ /* Generate C-state tables */
return acpigen_write_CST_package(map, ARRAY_SIZE(map)); acpigen_write_CST_package(map, ARRAY_SIZE(map));
} }
static int calculate_power(int tdp, int p1_ratio, int ratio) static int calculate_power(int tdp, int p1_ratio, int ratio)

14
src/soc/intel/fsp_baytrail/acpi.c
View File

@ -361,24 +361,20 @@ static acpi_tstate_t baytrail_tss_table[] = {
{ 13, 125, 0, 0x12, 0 }, { 13, 125, 0, 0x12, 0 },
}; };
static int generate_T_state_entries(int core, int cores_per_package) static void generate_T_state_entries(int core, int cores_per_package)
{ {
int len;
/* Indicate SW_ALL coordination for T-states */ /* Indicate SW_ALL coordination for T-states */
len = acpigen_write_TSD_package(core, cores_per_package, SW_ALL); acpigen_write_TSD_package(core, cores_per_package, SW_ALL);
/* Indicate FFixedHW so OS will use MSR */ /* Indicate FFixedHW so OS will use MSR */
len += acpigen_write_empty_PTC(); acpigen_write_empty_PTC();
/* Set NVS controlled T-state limit */ /* Set NVS controlled T-state limit */
len += acpigen_write_TPC("\\TLVL"); acpigen_write_TPC("\\TLVL");
/* Write TSS table for MSR access */ /* Write TSS table for MSR access */
len += acpigen_write_TSS_package( acpigen_write_TSS_package(
ARRAY_SIZE(baytrail_tss_table), baytrail_tss_table); ARRAY_SIZE(baytrail_tss_table), baytrail_tss_table);
return len;
} }
static int calculate_power(int tdp, int p1_ratio, int ratio) static int calculate_power(int tdp, int p1_ratio, int ratio)

8
src/southbridge/intel/lynxpoint/acpi.c
View File

@ -57,18 +57,18 @@ void acpi_create_intel_hpet(acpi_hpet_t * hpet)
acpi_checksum((void *) hpet, sizeof(acpi_hpet_t)); acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
} }
static int acpi_create_serialio_ssdt_entry(int id, global_nvs_t *gnvs) static void acpi_create_serialio_ssdt_entry(int id, global_nvs_t *gnvs)
{ {
char sio_name[5] = {}; char sio_name[5] = {};
snprintf(sio_name, sizeof (sio_name), "S%1uEN", id); snprintf(sio_name, sizeof (sio_name), "S%1uEN", id);
return acpigen_write_name_byte(sio_name, gnvs->s0b[id] ? 1 : 0); acpigen_write_name_byte(sio_name, gnvs->s0b[id] ? 1 : 0);
} }
void acpi_create_serialio_ssdt(acpi_header_t *ssdt) void acpi_create_serialio_ssdt(acpi_header_t *ssdt)
{ {
unsigned long current = (unsigned long)ssdt + sizeof(acpi_header_t); unsigned long current = (unsigned long)ssdt + sizeof(acpi_header_t);
global_nvs_t *gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); global_nvs_t *gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
int id, len = 0; int id;
if (!gnvs) if (!gnvs)
return; return;
@ -87,7 +87,7 @@ void acpi_create_serialio_ssdt(acpi_header_t *ssdt)
/* Fill the SSDT with an entry for each SerialIO device */ /* Fill the SSDT with an entry for each SerialIO device */
for (id = 0; id < 8; id++) for (id = 0; id < 8; id++)
len += acpi_create_serialio_ssdt_entry(id, gnvs); acpi_create_serialio_ssdt_entry(id, gnvs);
/* (Re)calculate length and checksum. */ /* (Re)calculate length and checksum. */
current = (unsigned long)acpigen_get_current(); current = (unsigned long)acpigen_get_current();