Implement ACPI in a per device way
This approach avoids having same basic tables 150-lines mantra over 100 times in codebase. Change-Id: I76fb2fbcb9ca0654f2e5fd5d90bd62392165777c Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/6801 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Vladimir Serbinenko
parent
a2a906e47a
commit
2d7bd8a6eb
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@ -462,6 +462,10 @@ config MAX_PIRQ_LINKS
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table specifies links greater than 4, pirq_route_irqs will not
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function properly, unless this variable is correctly set.
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config PER_DEVICE_ACPI_TABLES
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bool
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default n
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#These Options are here to avoid "undefined" warnings.
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#The actual selection and help texts are in the following menu.
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@ -247,15 +247,17 @@ void acpi_create_mcfg(acpi_mcfg_t *mcfg)
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header->checksum = acpi_checksum((void *)mcfg, header->length);
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}
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#if !IS_ENABLED(CONFIG_PER_DEVICE_ACPI_TABLES)
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/*
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* This can be overridden by platform ACPI setup code, if it calls
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* acpi_create_ssdt_generator().
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*/
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unsigned long __attribute__((weak)) acpi_fill_ssdt_generator(
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unsigned long current, const char *oem_table_id)
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unsigned long current, const char *oem_table_id)
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{
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return current;
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}
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#endif
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void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id)
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{
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@ -273,7 +275,17 @@ void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id)
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ssdt->length = sizeof(acpi_header_t);
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acpigen_set_current((char *) current);
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current = acpi_fill_ssdt_generator(current, oem_table_id);
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{
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#if IS_ENABLED(CONFIG_PER_DEVICE_ACPI_TABLES)
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device_t dev;
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for (dev = all_devices; dev; dev = dev->next)
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if (dev->ops && dev->ops->acpi_fill_ssdt_generator) {
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current = dev->ops->acpi_fill_ssdt_generator(current, oem_table_id);
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}
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#else
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current = acpi_fill_ssdt_generator(current, oem_table_id);
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#endif
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}
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/* (Re)calculate length and checksum. */
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ssdt->length = current - (unsigned long)ssdt;
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@ -455,6 +467,24 @@ void acpi_create_hpet(acpi_hpet_t *hpet)
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header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t));
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}
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unsigned long acpi_write_hpet(unsigned long current, acpi_rsdp_t *rsdp)
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{
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acpi_hpet_t *hpet;
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/*
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* We explicitly add these tables later on:
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*/
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printk(BIOS_DEBUG, "ACPI: * HPET\n");
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hpet = (acpi_hpet_t *) current;
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current += sizeof(acpi_hpet_t);
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current = ALIGN(current, 16);
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acpi_create_hpet(hpet);
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acpi_add_table(rsdp, hpet);
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return current;
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}
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void acpi_create_facs(acpi_facs_t *facs)
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{
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memset((void *)facs, 0, sizeof(acpi_facs_t));
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@ -620,6 +650,123 @@ void acpi_write_hest(acpi_hest_t *hest)
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header->checksum = acpi_checksum((void *)hest, header->length);
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}
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#if IS_ENABLED(CONFIG_PER_DEVICE_ACPI_TABLES)
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extern const unsigned char AmlCode[];
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#define ALIGN_CURRENT current = (ALIGN(current, 16))
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unsigned long write_acpi_tables(unsigned long start)
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{
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unsigned long current;
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acpi_rsdp_t *rsdp;
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acpi_rsdt_t *rsdt;
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acpi_xsdt_t *xsdt;
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acpi_fadt_t *fadt;
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acpi_facs_t *facs;
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#if CONFIG_HAVE_ACPI_SLIC
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acpi_header_t *slic;
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#endif
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acpi_header_t *ssdt;
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acpi_header_t *dsdt;
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acpi_mcfg_t *mcfg;
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acpi_madt_t *madt;
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device_t dev;
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current = start;
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/* Align ACPI tables to 16byte */
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ALIGN_CURRENT;
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printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start);
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/* We need at least an RSDP and an RSDT Table */
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rsdp = (acpi_rsdp_t *) current;
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current += sizeof(acpi_rsdp_t);
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ALIGN_CURRENT;
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rsdt = (acpi_rsdt_t *) current;
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current += sizeof(acpi_rsdt_t);
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ALIGN_CURRENT;
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xsdt = (acpi_xsdt_t *) current;
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current += sizeof(acpi_xsdt_t);
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ALIGN_CURRENT;
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/* clear all table memory */
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memset((void *) start, 0, current - start);
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acpi_write_rsdp(rsdp, rsdt, xsdt);
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acpi_write_rsdt(rsdt);
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acpi_write_xsdt(xsdt);
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printk(BIOS_DEBUG, "ACPI: * FACS\n");
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facs = (acpi_facs_t *) current;
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current += sizeof(acpi_facs_t);
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ALIGN_CURRENT;
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acpi_create_facs(facs);
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printk(BIOS_DEBUG, "ACPI: * DSDT\n");
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dsdt = (acpi_header_t *) current;
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memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
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current += dsdt->length;
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memcpy(dsdt, &AmlCode, dsdt->length);
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ALIGN_CURRENT;
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printk(BIOS_DEBUG, "ACPI: * FADT\n");
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fadt = (acpi_fadt_t *) current;
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current += sizeof(acpi_fadt_t);
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ALIGN_CURRENT;
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acpi_create_fadt(fadt, facs, dsdt);
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acpi_add_table(rsdp, fadt);
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#if CONFIG_HAVE_ACPI_SLIC
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printk(BIOS_DEBUG, "ACPI: * SLIC\n");
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slic = (acpi_header_t *)current;
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current += acpi_create_slic(current);
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ALIGN_CURRENT;
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acpi_add_table(rsdp, slic);
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#endif
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printk(BIOS_DEBUG, "ACPI: * SSDT\n");
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ssdt = (acpi_header_t *)current;
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acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
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current += ssdt->length;
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acpi_add_table(rsdp, ssdt);
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ALIGN_CURRENT;
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printk(BIOS_DEBUG, "ACPI: * MCFG\n");
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mcfg = (acpi_mcfg_t *) current;
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acpi_create_mcfg(mcfg);
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if (mcfg->header.length > sizeof(acpi_mcfg_t)) {
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current += mcfg->header.length;
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ALIGN_CURRENT;
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acpi_add_table(rsdp, mcfg);
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}
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printk(BIOS_DEBUG, "ACPI: * MADT\n");
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madt = (acpi_madt_t *) current;
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acpi_create_madt(madt);
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if (madt->header.length > sizeof(acpi_madt_t)) {
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current+=madt->header.length;
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acpi_add_table(rsdp,madt);
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}
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ALIGN_CURRENT;
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printk(BIOS_DEBUG, "current = %lx\n", current);
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for (dev = all_devices; dev; dev = dev->next) {
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if (dev->ops && dev->ops->write_acpi_tables) {
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current = dev->ops->write_acpi_tables(current, rsdp);
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ALIGN_CURRENT;
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}
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}
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printk(BIOS_INFO, "ACPI: done.\n");
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return current;
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}
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#endif
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#if CONFIG_HAVE_ACPI_RESUME
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void acpi_resume(void *wake_vec)
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{
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@ -490,8 +490,10 @@ unsigned long acpi_fill_madt(unsigned long current);
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unsigned long acpi_fill_mcfg(unsigned long current);
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unsigned long acpi_fill_srat(unsigned long current);
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unsigned long acpi_fill_slit(unsigned long current);
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#if !IS_ENABLED(CONFIG_PER_DEVICE_ACPI_TABLES)
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unsigned long acpi_fill_ssdt_generator(unsigned long current,
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const char *oem_table_id);
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#endif
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void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id);
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void acpi_create_fadt(acpi_fadt_t *fadt,acpi_facs_t *facs, void *dsdt);
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@ -526,6 +528,7 @@ void acpi_create_srat(acpi_srat_t *srat);
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void acpi_create_slit(acpi_slit_t *slit);
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void acpi_create_hpet(acpi_hpet_t *hpet);
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unsigned long acpi_write_hpet(unsigned long start, acpi_rsdp_t *rsdp);
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void acpi_create_mcfg(acpi_mcfg_t *mcfg);
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@ -40,6 +40,7 @@ struct chip_operations {
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struct bus;
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struct smbios_type11;
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struct acpi_rsdp;
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struct device_operations {
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void (*read_resources)(device_t dev);
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@ -55,6 +56,11 @@ struct device_operations {
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#if CONFIG_GENERATE_SMBIOS_TABLES
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int (*get_smbios_data)(device_t dev, int *handle, unsigned long *current);
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void (*get_smbios_strings)(device_t dev, struct smbios_type11 *t);
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#endif
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#if IS_ENABLED(CONFIG_GENERATE_ACPI_TABLES) && IS_ENABLED(CONFIG_PER_DEVICE_ACPI_TABLES)
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unsigned long (*write_acpi_tables)(unsigned long start, struct acpi_rsdp *rsdp);
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unsigned long (*acpi_fill_ssdt_generator)(unsigned long current,
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const char *oem_table_id);
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#endif
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const struct pci_operations *ops_pci;
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const struct smbus_bus_operations *ops_smbus_bus;
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