/* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpi.h> #include <soc/iomap.h> #include <soc/pm.h> void acpi_fill_fadt(acpi_fadt_t *fadt) { const uint16_t pmbase = ACPI_BASE_ADDRESS; fadt->pm1a_evt_blk = pmbase + PM1_STS; fadt->pm1a_cnt_blk = pmbase + PM1_CNT; fadt->pm2_cnt_blk = pmbase + PM2A_CNT_BLK; fadt->pm_tmr_blk = pmbase + PM1_TMR; fadt->gpe0_blk = pmbase + GPE0_STS; fadt->pm1_evt_len = 4; fadt->pm1_cnt_len = 2; fadt->pm2_cnt_len = 1; fadt->pm_tmr_len = 4; fadt->gpe0_blk_len = 2 * (GPE0_EN - GPE0_STS); fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042; fadt->flags |= ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_SEALED_CASE | ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_PLATFORM_CLOCK; fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8; fadt->x_pm1a_evt_blk.bit_offset = 0; fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk; fadt->x_pm1a_evt_blk.addrh = 0x0; fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8; fadt->x_pm1a_cnt_blk.bit_offset = 0; fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_cnt_blk; fadt->x_pm1a_cnt_blk.addrh = 0x0; fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm2_cnt_blk.bit_width = fadt->pm2_cnt_len * 8; fadt->x_pm2_cnt_blk.bit_offset = 0; fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; fadt->x_pm2_cnt_blk.addrl = fadt->pm2_cnt_blk; fadt->x_pm2_cnt_blk.addrh = 0x0; fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8; fadt->x_pm_tmr_blk.bit_offset = 0; fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; fadt->x_pm_tmr_blk.addrl = fadt->pm_tmr_blk; fadt->x_pm_tmr_blk.addrh = 0x0; /* * Windows 10 requires x_gpe0_blk to be set starting with FADT revision 5. * The bit_width field intentionally overflows here. * The OSPM can instead use the values in `fadt->gpe0_blk{,_len}`, which * seems to work fine on Linux 5.0 and Windows 10. */ fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8; fadt->x_gpe0_blk.bit_offset = 0; fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; fadt->x_gpe0_blk.addrl = fadt->gpe0_blk; fadt->x_gpe0_blk.addrh = 0x0; }