diff options
Diffstat (limited to 'src/soc/amd/cezanne/root_complex.c')
| -rw-r--r-- | src/soc/amd/cezanne/root_complex.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/root_complex.c b/src/soc/amd/cezanne/root_complex.c index 5d021baa5b..3ed137ce19 100644 --- a/src/soc/amd/cezanne/root_complex.c +++ b/src/soc/amd/cezanne/root_complex.c @@ -1,6 +1,8 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include <acpi/acpigen.h> #include <amdblocks/acpi.h> +#include <amdblocks/alib.h> #include <amdblocks/ioapic.h> #include <amdblocks/memmap.h> #include <arch/ioapic.h> @@ -13,6 +15,37 @@ #include <fsp/util.h> #include <soc/iomap.h> #include <stdint.h> +#include "chip.h" + +#define DPTC_TOTAL_UPDATE_PARAMS 4 + +struct dptc_input { + uint16_t size; + struct alib_dptc_param params[DPTC_TOTAL_UPDATE_PARAMS]; +} __packed; + +#define DPTC_INPUTS(_thermctllmit, _sustained, _fast, _slow) \ + { \ + .size = sizeof(struct dptc_input), \ + .params = { \ + { \ + .id = ALIB_DPTC_THERMAL_CONTROL_LIMIT_ID, \ + .value = _thermctllmit, \ + }, \ + { \ + .id = ALIB_DPTC_SUSTAINED_POWER_LIMIT_ID, \ + .value = _sustained, \ + }, \ + { \ + .id = ALIB_DPTC_FAST_PPT_LIMIT_ID, \ + .value = _fast, \ + }, \ + { \ + .id = ALIB_DPTC_SLOW_PPT_LIMIT_ID, \ + .value = _slow, \ + }, \ + }, \ + } /* * @@ -146,9 +179,51 @@ static void root_complex_init(struct device *dev) setup_ioapic((u8 *)GNB_IO_APIC_ADDR, GNB_IOAPIC_ID); } +static void acipgen_dptci(void) +{ + const struct soc_amd_cezanne_config *config = config_of_soc(); + + if (!config->dptc_enable) + return; + + struct dptc_input default_input = DPTC_INPUTS(config->thermctl_limit_degreeC, + config->sustained_power_limit_mW, + config->fast_ppt_limit_mW, + config->slow_ppt_limit_mW); + struct dptc_input tablet_mode_input = DPTC_INPUTS( + config->thermctl_limit_tablet_mode_degreeC, + config->sustained_power_limit_tablet_mode_mW, + config->fast_ppt_limit_tablet_mode_mW, + config->slow_ppt_limit_tablet_mode_mW); + /* Scope (\_SB) */ + acpigen_write_scope("\\_SB"); + + /* Method(DPTC, 0, Serialized) */ + acpigen_write_method_serialized("DPTC", 0); + + /* TODO: The code assumes that if DPTC gets called the following object exists */ + /* If (LEqual ("\_SB.PCI0.LPCB.EC0.TBMD", 1)) */ + acpigen_write_if_lequal_namestr_int("\\_SB.PCI0.LPCB.EC0.TBMD", 1); + + acpigen_dptc_call_alib("TABB", (uint8_t *)(void *)&tablet_mode_input, + sizeof(tablet_mode_input)); + + /* Else */ + acpigen_write_else(); + + acpigen_dptc_call_alib("DEFB", (uint8_t *)(void *)&default_input, + sizeof(default_input)); + + acpigen_pop_len(); /* Else */ + + acpigen_pop_len(); /* Method DPTC */ + acpigen_pop_len(); /* Scope \_SB */ +} + static void root_complex_fill_ssdt(const struct device *device) { acpi_fill_root_complex_tom(device); + acipgen_dptci(); } static const char *gnb_acpi_name(const struct device *dev) |