diff options
Diffstat (limited to 'src/soc/intel/xeon_sp')
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/chip.c | 1 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/include/soc/soc_util.h | 3 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/soc_util.c | 129 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/include/soc/util.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/include/soc/soc_util.h | 3 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/soc_util.c | 124 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/util.c | 129 |
7 files changed, 137 insertions, 253 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c index 0049616223..3daff1372b 100644 --- a/src/soc/intel/xeon_sp/cpx/chip.c +++ b/src/soc/intel/xeon_sp/cpx/chip.c @@ -12,6 +12,7 @@ #include <soc/cpu.h> #include <soc/ramstage.h> #include <soc/soc_util.h> +#include <soc/util.h> /* UPD parameters to be initialized before SiliconInit */ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd) diff --git a/src/soc/intel/xeon_sp/cpx/include/soc/soc_util.h b/src/soc/intel/xeon_sp/cpx/include/soc/soc_util.h index 8c454bb29e..649e6b5004 100644 --- a/src/soc/intel/xeon_sp/cpx/include/soc/soc_util.h +++ b/src/soc/intel/xeon_sp/cpx/include/soc/soc_util.h @@ -15,7 +15,8 @@ uint8_t get_iiostack_info(struct iiostack_resource *info); const struct SystemMemoryMapHob *get_system_memory_map(void); -void set_bios_init_completion(void); +uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack); + int soc_get_stack_for_port(int port); #endif /* _SOC_UTIL_H_ */ diff --git a/src/soc/intel/xeon_sp/cpx/soc_util.c b/src/soc/intel/xeon_sp/cpx/soc_util.c index 149f2c01eb..973d2588c5 100644 --- a/src/soc/intel/xeon_sp/cpx/soc_util.c +++ b/src/soc/intel/xeon_sp/cpx/soc_util.c @@ -1,7 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <assert.h> -#include <delay.h> #include <device/device.h> #include <device/pci.h> #include <intelblocks/cpulib.h> @@ -11,7 +10,6 @@ #include <soc/util.h> #include <stdlib.h> #include <string.h> -#include <timer.h> const struct SystemMemoryMapHob *get_system_memory_map(void) { @@ -54,50 +52,7 @@ uint8_t get_iiostack_info(struct iiostack_resource *info) return hob->PlatformData.Pci64BitResourceAllocation; } -/* return true if command timed out else false */ -static bool wait_for_bios_cmd_cpl(pci_devfn_t dev, uint32_t reg, uint32_t mask, - uint32_t target) -{ - const uint32_t max_delay = 5000; /* 5 seconds max */ - const uint32_t step_delay = 50; /* 50 us */ - struct stopwatch sw; - - stopwatch_init_msecs_expire(&sw, max_delay); - while ((pci_s_read_config32(dev, reg) & mask) != target) { - udelay(step_delay); - if (stopwatch_expired(&sw)) { - printk(BIOS_ERR, "%s timed out for dev: %x, reg: 0x%x, " - "mask: 0x%x, target: 0x%x\n", __func__, dev, reg, mask, target); - return true; /* timedout */ - } - } - return false; /* successful */ -} - -/* return true if command timed out else false */ -static bool write_bios_mailbox_cmd(pci_devfn_t dev, uint32_t command, uint32_t data) -{ - /* verify bios is not in busy state */ - if (wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, BIOS_MB_RUN_BUSY_MASK, 0)) - return true; /* timed out */ - - /* write data to data register */ - printk(BIOS_SPEW, "%s - pci_s_write_config32 reg: 0x%x, data: 0x%x\n", __func__, - PCU_CR1_BIOS_MB_DATA_REG, data); - pci_s_write_config32(dev, PCU_CR1_BIOS_MB_DATA_REG, data); - - /* write the command */ - printk(BIOS_SPEW, "%s - pci_s_write_config32 reg: 0x%x, data: 0x%lx\n", __func__, - PCU_CR1_BIOS_MB_INTERFACE_REG, command | BIOS_MB_RUN_BUSY_MASK); - pci_s_write_config32(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, - command | BIOS_MB_RUN_BUSY_MASK); - - /* wait for completion or time out*/ - return wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, - BIOS_MB_RUN_BUSY_MASK, 0); -} - -static uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack) +uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack) { const IIO_UDS *hob = get_iio_uds(); @@ -106,88 +61,6 @@ static uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack) return hob->PlatformData.IIO_resource[socket].StackRes[stack].BusBase; } -/* return true if command timed out else false */ -static bool set_bios_reset_cpl_for_package(uint32_t socket, uint32_t rst_cpl_mask, - uint32_t pcode_init_mask, uint32_t val) -{ - const uint32_t bus = get_socket_stack_busno(socket, PCU_IIO_STACK); - const pci_devfn_t dev = PCI_DEV(bus, PCU_DEV, PCU_CR1_FUN); - - uint32_t reg = pci_s_read_config32(dev, PCU_CR1_BIOS_RESET_CPL_REG); - reg &= (uint32_t) ~rst_cpl_mask; - reg |= val; - - /* update BIOS RESET completion bit */ - pci_s_write_config32(dev, PCU_CR1_BIOS_RESET_CPL_REG, reg); - - /* wait for PCU ack */ - return wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_RESET_CPL_REG, pcode_init_mask, - pcode_init_mask); -} - -static void set_bios_init_completion_for_package(uint32_t socket) -{ - uint32_t data; - bool timedout; - const uint32_t bus = get_socket_stack_busno(socket, PCU_IIO_STACK); - const pci_devfn_t dev = PCI_DEV(bus, PCU_DEV, PCU_CR1_FUN); - - /* read PCU config */ - timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_READ_PCU_MISC_CFG, 0); - if (timedout) { - /* 2nd try */ - timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_READ_PCU_MISC_CFG, 0); - if (timedout) - die("BIOS PCU Misc Config Read timed out.\n"); - - /* Since the 1st try failed, we need to make sure PCU is in stable state */ - data = pci_s_read_config32(dev, PCU_CR1_BIOS_MB_DATA_REG); - printk(BIOS_SPEW, "%s - pci_s_read_config32 reg: 0x%x, data: 0x%x\n", - __func__, PCU_CR1_BIOS_MB_DATA_REG, data); - timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_WRITE_PCU_MISC_CFG, data); - if (timedout) - die("BIOS PCU Misc Config Write timed out.\n"); - } - - /* update RST_CPL3, PCODE_INIT_DONE3 */ - timedout = set_bios_reset_cpl_for_package(socket, RST_CPL3_MASK, - PCODE_INIT_DONE3_MASK, RST_CPL3_MASK); - if (timedout) - die("BIOS RESET CPL3 timed out.\n"); - - /* update RST_CPL4, PCODE_INIT_DONE4 */ - timedout = set_bios_reset_cpl_for_package(socket, RST_CPL4_MASK, - PCODE_INIT_DONE4_MASK, RST_CPL4_MASK); - if (timedout) - die("BIOS RESET CPL4 timed out.\n"); - - /* set CSR_DESIRED_CORES_CFG2 lock bit */ - data = pci_s_read_config32(dev, PCU_CR1_DESIRED_CORES_CFG2_REG); - data |= PCU_CR1_DESIRED_CORES_CFG2_REG_LOCK_MASK; - printk(BIOS_SPEW, "%s - pci_s_write_config32 PCU_CR1_DESIRED_CORES_CFG2_REG 0x%x, data: 0x%x\n", - __func__, PCU_CR1_DESIRED_CORES_CFG2_REG, data); - pci_s_write_config32(dev, PCU_CR1_DESIRED_CORES_CFG2_REG, data); -} - -void set_bios_init_completion(void) -{ - /* FIXME: This may need to be changed for multi-socket platforms */ - uint32_t sbsp_socket_id = 0; - - /* - * According to the BIOS Writer's Guide, the SBSP must be the last socket - * to receive the BIOS init completion message. So, we send it to all non-SBSP - * sockets first. - */ - for (uint32_t socket = 0; socket < soc_get_num_cpus(); ++socket) { - if (socket == sbsp_socket_id) - continue; - set_bios_init_completion_for_package(socket); - } - - /* And finally, take care of the SBSP */ - set_bios_init_completion_for_package(sbsp_socket_id); -} /* * EX: CPX-SP * Ports Stack Stack(HOB) IioConfigIou diff --git a/src/soc/intel/xeon_sp/include/soc/util.h b/src/soc/intel/xeon_sp/include/soc/util.h index 73fc63da4c..014b238165 100644 --- a/src/soc/intel/xeon_sp/include/soc/util.h +++ b/src/soc/intel/xeon_sp/include/soc/util.h @@ -15,5 +15,6 @@ int get_platform_thread_count(void); const IIO_UDS *get_iio_uds(void); unsigned int soc_get_num_cpus(void); void xeonsp_init_cpu_config(void); +void set_bios_init_completion(void); #endif diff --git a/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h b/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h index fd0d4e2fbb..b42aec0976 100644 --- a/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h +++ b/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h @@ -17,7 +17,8 @@ void config_reset_cpl3_csrs(void); const struct SystemMemoryMapHob *get_system_memory_map(void); -void set_bios_init_completion(void); +uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack); + int soc_get_stack_for_port(int port); #endif /* _SOC_UTIL_H_ */ diff --git a/src/soc/intel/xeon_sp/skx/soc_util.c b/src/soc/intel/xeon_sp/skx/soc_util.c index 3faaed0f06..469fd60b5f 100644 --- a/src/soc/intel/xeon_sp/skx/soc_util.c +++ b/src/soc/intel/xeon_sp/skx/soc_util.c @@ -2,7 +2,6 @@ #include <assert.h> #include <console/console.h> -#include <delay.h> #include <device/pci.h> #include <hob_iiouds.h> #include <intelblocks/cpulib.h> @@ -14,7 +13,6 @@ #include <soc/pcr_ids.h> #include <soc/soc_util.h> #include <soc/util.h> -#include <timer.h> /* @@ -83,51 +81,7 @@ uint8_t get_iiostack_info(struct iiostack_resource *info) return hob->PlatformData.Pci64BitResourceAllocation; } -/* return 1 if command timed out else 0 */ -static uint32_t wait_for_bios_cmd_cpl(pci_devfn_t dev, uint32_t reg, uint32_t mask, - uint32_t target) -{ - uint32_t max_delay = 5000; /* 5 seconds max */ - uint32_t step_delay = 50; /* 50 us */ - struct stopwatch sw; - - stopwatch_init_msecs_expire(&sw, max_delay); - while ((pci_mmio_read_config32(dev, reg) & mask) != target) { - udelay(step_delay); - if (stopwatch_expired(&sw)) { - printk(BIOS_ERR, "%s timed out for dev: 0x%x, reg: 0x%x, " - "mask: 0x%x, target: 0x%x\n", __func__, dev, reg, mask, target); - return 1; /* timedout */ - } - } - return 0; /* successful */ -} - -/* return 1 if command timed out else 0 */ -static uint32_t write_bios_mailbox_cmd(pci_devfn_t dev, uint32_t command, uint32_t data) -{ - /* verify bios is not in busy state */ - if (wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, BIOS_MB_RUN_BUSY_MASK, 0)) - return 1; /* timed out */ - - /* write data to data register */ - printk(BIOS_SPEW, "%s - pci_mmio_write_config32 reg: 0x%x, data: 0x%x\n", __func__, - PCU_CR1_BIOS_MB_DATA_REG, data); - pci_mmio_write_config32(dev, PCU_CR1_BIOS_MB_DATA_REG, data); - - /* write the command */ - printk(BIOS_SPEW, "%s - pci_mmio_write_config32 reg: 0x%x, data: 0x%x\n", __func__, - PCU_CR1_BIOS_MB_INTERFACE_REG, - (uint32_t) (command | BIOS_MB_RUN_BUSY_MASK)); - pci_mmio_write_config32(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, - (uint32_t) (command | BIOS_MB_RUN_BUSY_MASK)); - - /* wait for completion or time out*/ - return wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, - BIOS_MB_RUN_BUSY_MASK, 0); -} - -static uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack) +uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack) { size_t hob_size; const IIO_UDS *hob; @@ -141,82 +95,6 @@ static uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack) return hob->PlatformData.CpuQpiInfo[socket].StackBus[stack]; } -/* return 1 if command timed out else 0 */ -static int set_bios_reset_cpl_for_package(uint32_t socket, uint32_t rst_cpl_mask, - uint32_t pcode_init_mask, uint32_t val) -{ - uint32_t bus = get_socket_stack_busno(socket, PCU_IIO_STACK); - pci_devfn_t dev = PCI_DEV(bus, PCU_DEV, PCU_CR1_FUN); - - uint32_t reg = pci_mmio_read_config32(dev, PCU_CR1_BIOS_RESET_CPL_REG); - reg &= (uint32_t) ~rst_cpl_mask; - reg |= rst_cpl_mask; - reg |= val; - - /* update BIOS RESET completion bit */ - pci_mmio_write_config32(dev, PCU_CR1_BIOS_RESET_CPL_REG, reg); - - /* wait for PCU ack */ - return wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_RESET_CPL_REG, pcode_init_mask, - pcode_init_mask); -} - -static void set_bios_init_completion_for_package(uint32_t socket) -{ - uint32_t data; - uint32_t timedout; - uint32_t bus = get_socket_stack_busno(socket, PCU_IIO_STACK); - pci_devfn_t dev = PCI_DEV(bus, PCU_DEV, PCU_CR1_FUN); - - /* read pcu config */ - timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_READ_PCU_MISC_CFG, 0); - if (timedout) { - /* 2nd try */ - timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_READ_PCU_MISC_CFG, 0); - if (timedout) - die("BIOS PCU Misc Config Read timed out.\n"); - - data = pci_mmio_read_config32(dev, PCU_CR1_BIOS_MB_DATA_REG); - printk(BIOS_SPEW, "%s - pci_mmio_read_config32 reg: 0x%x, data: 0x%x\n", - __func__, PCU_CR1_BIOS_MB_DATA_REG, data); - - /* write PCU config */ - timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_WRITE_PCU_MISC_CFG, data); - if (timedout) - die("BIOS PCU Misc Config Write timed out.\n"); - } - - /* update RST_CPL3, PCODE_INIT_DONE3 */ - timedout = set_bios_reset_cpl_for_package(socket, RST_CPL3_MASK, - PCODE_INIT_DONE3_MASK, RST_CPL3_MASK); - if (timedout) - die("BIOS RESET CPL3 timed out.\n"); - - /* update RST_CPL4, PCODE_INIT_DONE4 */ - timedout = set_bios_reset_cpl_for_package(socket, RST_CPL4_MASK, - PCODE_INIT_DONE4_MASK, RST_CPL4_MASK); - if (timedout) - die("BIOS RESET CPL4 timed out.\n"); - /* set CSR_DESIRED_CORES_CFG2 lock bit */ - data = pci_mmio_read_config32(dev, PCU_CR1_DESIRED_CORES_CFG2_REG); - data |= PCU_CR1_DESIRED_CORES_CFG2_REG_LOCK_MASK; - printk(BIOS_SPEW, "%s - pci_mmio_write_config32 PCU_CR1_DESIRED_CORES_CFG2_REG 0x%x, data: 0x%x\n", - __func__, PCU_CR1_DESIRED_CORES_CFG2_REG, data); - pci_mmio_write_config32(dev, PCU_CR1_DESIRED_CORES_CFG2_REG, data); -} - -void set_bios_init_completion(void) -{ - uint32_t sbsp_socket_id = 0; /* TODO - this needs to be configurable */ - - for (uint32_t socket = 0; socket < MAX_SOCKET; ++socket) { - if (socket == sbsp_socket_id) - continue; - set_bios_init_completion_for_package(socket); - } - set_bios_init_completion_for_package(sbsp_socket_id); -} - void config_reset_cpl3_csrs(void) { uint32_t data, plat_info, max_min_turbo_limit_ratio; diff --git a/src/soc/intel/xeon_sp/util.c b/src/soc/intel/xeon_sp/util.c index 75f8a8a10a..310421566c 100644 --- a/src/soc/intel/xeon_sp/util.c +++ b/src/soc/intel/xeon_sp/util.c @@ -3,12 +3,15 @@ #include <assert.h> #include <commonlib/sort.h> #include <console/console.h> +#include <delay.h> #include <device/device.h> #include <device/pci.h> #include <intelblocks/cpulib.h> #include <soc/pci_devs.h> #include <soc/msr.h> +#include <soc/soc_util.h> #include <soc/util.h> +#include <timer.h> void get_stack_busnos(uint32_t *bus) { @@ -224,4 +227,130 @@ void xeonsp_init_cpu_config(void) ++num_apics; } } + +/* return true if command timed out else false */ +static bool wait_for_bios_cmd_cpl(pci_devfn_t dev, uint32_t reg, uint32_t mask, + uint32_t target) +{ + const uint32_t max_delay = 5000; /* 5 seconds max */ + const uint32_t step_delay = 50; /* 50 us */ + struct stopwatch sw; + + stopwatch_init_msecs_expire(&sw, max_delay); + while ((pci_s_read_config32(dev, reg) & mask) != target) { + udelay(step_delay); + if (stopwatch_expired(&sw)) { + printk(BIOS_ERR, "%s timed out for dev: %x, reg: 0x%x, " + "mask: 0x%x, target: 0x%x\n", __func__, dev, reg, mask, target); + return true; /* timedout */ + } + } + return false; /* successful */ +} + +/* return true if command timed out else false */ +static bool write_bios_mailbox_cmd(pci_devfn_t dev, uint32_t command, uint32_t data) +{ + /* verify bios is not in busy state */ + if (wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, BIOS_MB_RUN_BUSY_MASK, 0)) + return true; /* timed out */ + + /* write data to data register */ + printk(BIOS_SPEW, "%s - pci_s_write_config32 reg: 0x%x, data: 0x%x\n", __func__, + PCU_CR1_BIOS_MB_DATA_REG, data); + pci_s_write_config32(dev, PCU_CR1_BIOS_MB_DATA_REG, data); + + /* write the command */ + printk(BIOS_SPEW, "%s - pci_s_write_config32 reg: 0x%x, data: 0x%lx\n", __func__, + PCU_CR1_BIOS_MB_INTERFACE_REG, command | BIOS_MB_RUN_BUSY_MASK); + pci_s_write_config32(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, + command | BIOS_MB_RUN_BUSY_MASK); + + /* wait for completion or time out*/ + return wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_MB_INTERFACE_REG, + BIOS_MB_RUN_BUSY_MASK, 0); +} + +/* return true if command timed out else false */ +static bool set_bios_reset_cpl_for_package(uint32_t socket, uint32_t rst_cpl_mask, + uint32_t pcode_init_mask, uint32_t val) +{ + const uint32_t bus = get_socket_stack_busno(socket, PCU_IIO_STACK); + const pci_devfn_t dev = PCI_DEV(bus, PCU_DEV, PCU_CR1_FUN); + + uint32_t reg = pci_s_read_config32(dev, PCU_CR1_BIOS_RESET_CPL_REG); + reg &= (uint32_t) ~rst_cpl_mask; + reg |= val; + + /* update BIOS RESET completion bit */ + pci_s_write_config32(dev, PCU_CR1_BIOS_RESET_CPL_REG, reg); + + /* wait for PCU ack */ + return wait_for_bios_cmd_cpl(dev, PCU_CR1_BIOS_RESET_CPL_REG, pcode_init_mask, + pcode_init_mask); +} + +static void set_bios_init_completion_for_package(uint32_t socket) +{ + uint32_t data; + bool timedout; + const uint32_t bus = get_socket_stack_busno(socket, PCU_IIO_STACK); + const pci_devfn_t dev = PCI_DEV(bus, PCU_DEV, PCU_CR1_FUN); + + /* read PCU config */ + timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_READ_PCU_MISC_CFG, 0); + if (timedout) { + /* 2nd try */ + timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_READ_PCU_MISC_CFG, 0); + if (timedout) + die("BIOS PCU Misc Config Read timed out.\n"); + + /* Since the 1st try failed, we need to make sure PCU is in stable state */ + data = pci_s_read_config32(dev, PCU_CR1_BIOS_MB_DATA_REG); + printk(BIOS_SPEW, "%s - pci_s_read_config32 reg: 0x%x, data: 0x%x\n", + __func__, PCU_CR1_BIOS_MB_DATA_REG, data); + timedout = write_bios_mailbox_cmd(dev, BIOS_CMD_WRITE_PCU_MISC_CFG, data); + if (timedout) + die("BIOS PCU Misc Config Write timed out.\n"); + } + + /* update RST_CPL3, PCODE_INIT_DONE3 */ + timedout = set_bios_reset_cpl_for_package(socket, RST_CPL3_MASK, + PCODE_INIT_DONE3_MASK, RST_CPL3_MASK); + if (timedout) + die("BIOS RESET CPL3 timed out.\n"); + + /* update RST_CPL4, PCODE_INIT_DONE4 */ + timedout = set_bios_reset_cpl_for_package(socket, RST_CPL4_MASK, + PCODE_INIT_DONE4_MASK, RST_CPL4_MASK); + if (timedout) + die("BIOS RESET CPL4 timed out.\n"); + + /* set CSR_DESIRED_CORES_CFG2 lock bit */ + data = pci_s_read_config32(dev, PCU_CR1_DESIRED_CORES_CFG2_REG); + data |= PCU_CR1_DESIRED_CORES_CFG2_REG_LOCK_MASK; + printk(BIOS_SPEW, "%s - pci_s_write_config32 PCU_CR1_DESIRED_CORES_CFG2_REG 0x%x, data: 0x%x\n", + __func__, PCU_CR1_DESIRED_CORES_CFG2_REG, data); + pci_s_write_config32(dev, PCU_CR1_DESIRED_CORES_CFG2_REG, data); +} + +void set_bios_init_completion(void) +{ + /* FIXME: This may need to be changed for multi-socket platforms */ + uint32_t sbsp_socket_id = 0; + + /* + * According to the BIOS Writer's Guide, the SBSP must be the last socket + * to receive the BIOS init completion message. So, we send it to all non-SBSP + * sockets first. + */ + for (uint32_t socket = 0; socket < soc_get_num_cpus(); ++socket) { + if (socket == sbsp_socket_id) + continue; + set_bios_init_completion_for_package(socket); + } + + /* And finally, take care of the SBSP */ + set_bios_init_completion_for_package(sbsp_socket_id); +} #endif |