Vladimir Serbinenko (phcoder@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/7037
-gerrit
commit b08b21831d8c85281089a00a62a605defdee3014 Author: Vladimir Serbinenko phcoder@gmail.com Date: Wed Oct 8 22:56:27 2014 +0200
baytrail: Switch to per-device ACPI
Change-Id: I6a1b1daa291298c85e14f89aa47a0693837cec6f Signed-off-by: Vladimir Serbinenko phcoder@gmail.com --- src/mainboard/google/rambi/acpi_tables.c | 159 +----------------------------- src/soc/intel/baytrail/Kconfig | 1 + src/soc/intel/baytrail/acpi/globalnvs.asl | 3 +- src/soc/intel/baytrail/baytrail/nvs.h | 1 + src/soc/intel/baytrail/northcluster.c | 14 +++ src/soc/intel/baytrail/southcluster.c | 32 ++++++ 6 files changed, 51 insertions(+), 159 deletions(-)
diff --git a/src/mainboard/google/rambi/acpi_tables.c b/src/mainboard/google/rambi/acpi_tables.c index 890e1df..d94b2de 100644 --- a/src/mainboard/google/rambi/acpi_tables.c +++ b/src/mainboard/google/rambi/acpi_tables.c @@ -34,9 +34,7 @@ #include <baytrail/nvs.h> #include <baytrail/iomap.h>
-extern const unsigned char AmlCode[]; - -static void acpi_create_gnvs(global_nvs_t *gnvs) +void acpi_create_gnvs(global_nvs_t *gnvs) { acpi_init_gnvs(gnvs);
@@ -68,158 +66,3 @@ unsigned long acpi_fill_madt(unsigned long current)
return current; } - -unsigned long acpi_fill_ssdt_generator(unsigned long current, - const char *oem_table_id) -{ - generate_cpu_entries(); - return (unsigned long) (acpigen_get_current()); -} - -unsigned long acpi_fill_slit(unsigned long current) -{ - // Not implemented - return current; -} - -unsigned long acpi_fill_srat(unsigned long current) -{ - /* No NUMA, no SRAT */ - return current; -} - -#define ALIGN_CURRENT current = (ALIGN(current, 16)) -unsigned long write_acpi_tables(unsigned long start) -{ - unsigned long current; - int i; - acpi_rsdp_t *rsdp; - acpi_rsdt_t *rsdt; - acpi_xsdt_t *xsdt; - acpi_hpet_t *hpet; - acpi_madt_t *madt; - acpi_mcfg_t *mcfg; - acpi_fadt_t *fadt; - acpi_facs_t *facs; - acpi_header_t *ssdt; - acpi_header_t *dsdt; - global_nvs_t *gnvs; - - current = start; - - /* Align ACPI tables to 16byte */ - ALIGN_CURRENT; - - printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start); - - /* We need at least an RSDP and an RSDT Table */ - rsdp = (acpi_rsdp_t *) current; - current += sizeof(acpi_rsdp_t); - ALIGN_CURRENT; - rsdt = (acpi_rsdt_t *) current; - current += sizeof(acpi_rsdt_t); - ALIGN_CURRENT; - xsdt = (acpi_xsdt_t *) current; - current += sizeof(acpi_xsdt_t); - ALIGN_CURRENT; - - /* clear all table memory */ - memset((void *) start, 0, current - start); - - acpi_write_rsdp(rsdp, rsdt, xsdt); - acpi_write_rsdt(rsdt); - acpi_write_xsdt(xsdt); - - printk(BIOS_DEBUG, "ACPI: * FACS\n"); - facs = (acpi_facs_t *) current; - current += sizeof(acpi_facs_t); - ALIGN_CURRENT; - acpi_create_facs(facs); - - printk(BIOS_DEBUG, "ACPI: * DSDT\n"); - dsdt = (acpi_header_t *) current; - memcpy(dsdt, &AmlCode, sizeof(acpi_header_t)); - current += dsdt->length; - memcpy(dsdt, &AmlCode, dsdt->length); - - ALIGN_CURRENT; - - printk(BIOS_DEBUG, "ACPI: * FADT\n"); - fadt = (acpi_fadt_t *) current; - current += sizeof(acpi_fadt_t); - ALIGN_CURRENT; - - acpi_create_fadt(fadt, facs, dsdt); - acpi_add_table(rsdp, fadt); - - /* - * We explicitly add these tables later on: - */ - printk(BIOS_DEBUG, "ACPI: * HPET\n"); - - hpet = (acpi_hpet_t *) current; - current += sizeof(acpi_hpet_t); - ALIGN_CURRENT; - acpi_create_intel_hpet(hpet); - acpi_add_table(rsdp, hpet); - - /* If we want to use HPET Timers Linux wants an MADT */ - printk(BIOS_DEBUG, "ACPI: * MADT\n"); - - madt = (acpi_madt_t *) current; - acpi_create_madt(madt); - current += madt->header.length; - ALIGN_CURRENT; - acpi_add_table(rsdp, madt); - - printk(BIOS_DEBUG, "ACPI: * MCFG\n"); - mcfg = (acpi_mcfg_t *) current; - acpi_create_mcfg(mcfg); - current += mcfg->header.length; - ALIGN_CURRENT; - acpi_add_table(rsdp, mcfg); - - /* Update GNVS pointer into CBMEM */ - gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); - if (!gnvs) { - printk(BIOS_DEBUG, "ACPI: Could not find CBMEM GNVS\n"); - gnvs = (global_nvs_t *)current; - } - - for (i=0; i < dsdt->length; i++) { - if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) { - printk(BIOS_DEBUG, "ACPI: Patching up global NVS in " - "DSDT at offset 0x%04x -> %p\n", i, gnvs); - *(u32*)(((u32)dsdt) + i) = (unsigned long)gnvs; - acpi_save_gnvs((unsigned long)gnvs); - break; - } - } - - /* And fill it */ - acpi_create_gnvs(gnvs); - - /* And tell SMI about it */ - smm_setup_structures(gnvs, NULL, NULL); - - current += sizeof(global_nvs_t); - ALIGN_CURRENT; - - /* We patched up the DSDT, so we need to recalculate the checksum */ - dsdt->checksum = 0; - dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length); - - printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt, - dsdt->length); - - printk(BIOS_DEBUG, "ACPI: * SSDT\n"); - ssdt = (acpi_header_t *)current; - acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR); - current += ssdt->length; - acpi_add_table(rsdp, ssdt); - ALIGN_CURRENT; - - printk(BIOS_DEBUG, "current = %lx\n", current); - printk(BIOS_INFO, "ACPI: done.\n"); - return current; -} diff --git a/src/soc/intel/baytrail/Kconfig b/src/soc/intel/baytrail/Kconfig index f36394e..d5f84cb 100644 --- a/src/soc/intel/baytrail/Kconfig +++ b/src/soc/intel/baytrail/Kconfig @@ -35,6 +35,7 @@ config CPU_SPECIFIC_OPTIONS select TSC_MONOTONIC_TIMER select TSC_SYNC_MFENCE select UDELAY_TSC + select PER_DEVICE_ACPI_TABLES
config BOOTBLOCK_CPU_INIT string diff --git a/src/soc/intel/baytrail/acpi/globalnvs.asl b/src/soc/intel/baytrail/acpi/globalnvs.asl index a201c03..946f123 100644 --- a/src/soc/intel/baytrail/acpi/globalnvs.asl +++ b/src/soc/intel/baytrail/acpi/globalnvs.asl @@ -30,7 +30,8 @@ Name(\PICM, 0) // IOAPIC/8259 */
-OperationRegion (GNVS, SystemMemory, 0xC0DEBABE, 0x2000) +External(NVSA) +OperationRegion (GNVS, SystemMemory, NVSA, 0x2000) Field (GNVS, ByteAcc, NoLock, Preserve) { /* Miscellaneous */ diff --git a/src/soc/intel/baytrail/baytrail/nvs.h b/src/soc/intel/baytrail/baytrail/nvs.h index c5defac..c204042 100644 --- a/src/soc/intel/baytrail/baytrail/nvs.h +++ b/src/soc/intel/baytrail/baytrail/nvs.h @@ -70,6 +70,7 @@ typedef struct { device_nvs_t dev; } __attribute__((packed)) global_nvs_t;
+void acpi_create_gnvs(global_nvs_t *gnvs); #ifdef __SMM__ /* Used in SMM to find the ACPI GNVS address */ global_nvs_t *smm_get_gnvs(void); diff --git a/src/soc/intel/baytrail/northcluster.c b/src/soc/intel/baytrail/northcluster.c index e90c030..f592673 100644 --- a/src/soc/intel/baytrail/northcluster.c +++ b/src/soc/intel/baytrail/northcluster.c @@ -22,6 +22,7 @@ #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> +#include <arch/acpi.h>
#include <baytrail/iomap.h> #include <baytrail/iosf.h> @@ -139,8 +140,21 @@ static void nc_read_resources(device_t dev) #endif }
+unsigned long acpi_fill_slit(unsigned long current) +{ + // Not implemented + return current; +} + +unsigned long acpi_fill_srat(unsigned long current) +{ + /* No NUMA, no SRAT */ + return current; +} + static struct device_operations nc_ops = { .read_resources = nc_read_resources, + .acpi_fill_ssdt_generator = generate_cpu_entries, .set_resources = NULL, .enable_resources = NULL, .init = NULL, diff --git a/src/soc/intel/baytrail/southcluster.c b/src/soc/intel/baytrail/southcluster.c index 49e4c91..a021088 100644 --- a/src/soc/intel/baytrail/southcluster.c +++ b/src/soc/intel/baytrail/southcluster.c @@ -39,6 +39,9 @@ #include <baytrail/ramstage.h> #include <baytrail/spi.h> #include "chip.h" +#include <arch/acpi.h> +#include <arch/acpigen.h> +#include <cpu/cpu.h>
static inline void add_mmio_resource(device_t dev, int i, unsigned long addr, unsigned long size) @@ -470,9 +473,38 @@ void southcluster_enable_dev(device_t dev) } }
+static void southcluster_inject_dsdt(void) +{ + global_nvs_t *gnvs; + + gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); + if (!gnvs) { + gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, sizeof (*gnvs)); + if (gnvs) + memset(gnvs, 0, sizeof(*gnvs)); + } + + if (gnvs) { + int scopelen; + memset(gnvs, 0, sizeof(*gnvs)); + acpi_create_gnvs(gnvs); + acpi_save_gnvs((unsigned long)gnvs); + /* And tell SMI about it */ + smm_setup_structures(gnvs, NULL, NULL); + + /* Add it to DSDT. */ + scopelen = acpigen_write_scope("\"); + scopelen += acpigen_write_name_dword("NVSA", (u32) gnvs); + acpigen_patch_len(scopelen - 1); + } +} + + static struct device_operations device_ops = { .read_resources = sc_read_resources, .set_resources = pci_dev_set_resources, + .acpi_inject_dsdt_generator = southcluster_inject_dsdt, + .write_acpi_tables = acpi_write_hpet, .enable_resources = NULL, .init = sc_init, .enable = southcluster_enable_dev,