soc/amd: Change Morgana codename to Phoenix

Now that the next generation of APUs is officially announced, we can
unmask morgana.

The chip formerly known as Morgana is actually Phoenix.

Surprise!

This patch just changes the name across the entire codebase.

Note that the fw.cfg file will stay pointing to the
3rdparty/amd_blobs/morgana/psp directory until the amd_blobs_repo is
updated.

Signed-off-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Change-Id: Ie9492a30ae9ff9cd7e15e0f2d239c32190ad4956
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71731
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 337 insertions, 0 deletions

diff --git a/src/soc/amd/phoenix/acpi.c b/src/soc/amd/phoenix/acpi.c
new file mode 100644
index 0000000000..06b7f04137
--- /dev/null
+++ b/src/soc/amd/phoenix/acpi.c
@@ -0,0 +1,337 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* TODO: Update for Phoenix */
+/* TODO: See what can be made common */
+
+/* ACPI - create the Fixed ACPI Description Tables (FADT) */
+
+#include <acpi/acpi.h>
+#include <acpi/acpigen.h>
+#include <amdblocks/acpi.h>
+#include <amdblocks/cppc.h>
+#include <amdblocks/cpu.h>
+#include <amdblocks/acpimmio.h>
+#include <amdblocks/ioapic.h>
+#include <arch/ioapic.h>
+#include <arch/smp/mpspec.h>
+#include <console/console.h>
+#include <cpu/amd/cpuid.h>
+#include <cpu/amd/msr.h>
+#include <cpu/x86/smm.h>
+#include <soc/acpi.h>
+#include <soc/iomap.h>
+#include <soc/msr.h>
+#include <types.h>
+#include "chip.h"
+
+unsigned long acpi_fill_madt(unsigned long current)
+{
+	/* create all subtables for processors */
+	current = acpi_create_madt_lapics_with_nmis(current);
+
+	current += acpi_create_madt_ioapic_from_hw((acpi_madt_ioapic_t *)current, IO_APIC_ADDR);
+
+	current += acpi_create_madt_ioapic_from_hw((acpi_madt_ioapic_t *)current,
+						   GNB_IO_APIC_ADDR);
+
+	/* PIT is connected to legacy IRQ 0, but IOAPIC GSI 2 */
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current,
+		MP_BUS_ISA, 0, 2,
+		MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT);
+	/* SCI IRQ type override */
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current,
+		MP_BUS_ISA, ACPI_SCI_IRQ, ACPI_SCI_IRQ,
+		MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
+	current = acpi_fill_madt_irqoverride(current);
+
+	return current;
+}
+
+/*
+ * Reference section 5.2.9 Fixed ACPI Description Table (FADT)
+ * in the ACPI 3.0b specification.
+ */
+void acpi_fill_fadt(acpi_fadt_t *fadt)
+{
+	const struct soc_amd_phoenix_config *cfg = config_of_soc();
+
+	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
+
+	fadt->sci_int = ACPI_SCI_IRQ;
+
+	if (permanent_smi_handler()) {
+		fadt->smi_cmd = APM_CNT;
+		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
+		fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
+	}
+
+	fadt->pstate_cnt = 0;
+
+	fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
+	fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;
+	fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
+	fadt->gpe0_blk = ACPI_GPE0_BLK;
+
+	fadt->pm1_evt_len = 4;	/* 32 bits */
+	fadt->pm1_cnt_len = 2;	/* 16 bits */
+	fadt->pm_tmr_len = 4;	/* 32 bits */
+	fadt->gpe0_blk_len = 8;	/* 64 bits */
+
+	fill_fadt_extended_pm_regs(fadt);
+
+	fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
+	fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
+	fadt->duty_offset = 0;	/* Not supported */
+	fadt->duty_width = 0;	/* Not supported */
+	fadt->day_alrm = RTC_DATE_ALARM;
+	fadt->mon_alrm = 0;
+	fadt->century = RTC_ALT_CENTURY;
+	fadt->iapc_boot_arch = cfg->common_config.fadt_boot_arch; /* legacy free default */
+	fadt->flags |=	ACPI_FADT_WBINVD | /* See table 5-34 ACPI 6.3 spec */
+			ACPI_FADT_C1_SUPPORTED |
+			ACPI_FADT_S4_RTC_WAKE |
+			ACPI_FADT_32BIT_TIMER |
+			ACPI_FADT_PCI_EXPRESS_WAKE |
+			ACPI_FADT_PLATFORM_CLOCK |
+			ACPI_FADT_S4_RTC_VALID |
+			ACPI_FADT_REMOTE_POWER_ON;
+	if (cfg->s0ix_enable)
+		fadt->flags |= ACPI_FADT_LOW_PWR_IDLE_S0;
+
+	fadt->flags |= cfg->common_config.fadt_flags; /* additional board-specific flags */
+}
+
+static uint32_t get_pstate_core_freq(msr_t pstate_def)
+{
+	uint32_t core_freq, core_freq_mul, core_freq_div;
+	bool valid_freq_divisor;
+
+	/* Core frequency multiplier */
+	core_freq_mul = pstate_def.lo & PSTATE_DEF_LO_FREQ_MUL_MASK;
+
+	/* Core frequency divisor ID */
+	core_freq_div =
+		(pstate_def.lo & PSTATE_DEF_LO_FREQ_DIV_MASK) >> PSTATE_DEF_LO_FREQ_DIV_SHIFT;
+
+	if (core_freq_div == 0) {
+		return 0;
+	} else if ((core_freq_div >= PSTATE_DEF_LO_FREQ_DIV_MIN)
+		   && (core_freq_div <= PSTATE_DEF_LO_EIGHTH_STEP_MAX)) {
+		/* Allow 1/8 integer steps for this range */
+		valid_freq_divisor = 1;
+	} else if ((core_freq_div > PSTATE_DEF_LO_EIGHTH_STEP_MAX)
+		   && (core_freq_div <= PSTATE_DEF_LO_FREQ_DIV_MAX) && !(core_freq_div & 0x1)) {
+		/* Only allow 1/4 integer steps for this range */
+		valid_freq_divisor = 1;
+	} else {
+		valid_freq_divisor = 0;
+	}
+
+	if (valid_freq_divisor) {
+		/* 25 * core_freq_mul / (core_freq_div / 8) */
+		core_freq =
+			((PSTATE_DEF_LO_CORE_FREQ_BASE * core_freq_mul * 8) / (core_freq_div));
+	} else {
+		printk(BIOS_WARNING, "Undefined core_freq_div %x used. Force to 1.\n",
+		       core_freq_div);
+		core_freq = (PSTATE_DEF_LO_CORE_FREQ_BASE * core_freq_mul);
+	}
+	return core_freq;
+}
+
+static uint32_t get_pstate_core_power(msr_t pstate_def)
+{
+	uint32_t voltage_in_uvolts, core_vid, current_value_amps, current_divisor, power_in_mw;
+
+	/* Core voltage ID */
+	core_vid =
+		(pstate_def.lo & PSTATE_DEF_LO_CORE_VID_MASK) >> PSTATE_DEF_LO_CORE_VID_SHIFT;
+
+	/* Current value in amps */
+	current_value_amps =
+		(pstate_def.lo & PSTATE_DEF_LO_CUR_VAL_MASK) >> PSTATE_DEF_LO_CUR_VAL_SHIFT;
+
+	/* Current divisor */
+	current_divisor =
+		(pstate_def.lo & PSTATE_DEF_LO_CUR_DIV_MASK) >> PSTATE_DEF_LO_CUR_DIV_SHIFT;
+
+	/* Voltage */
+	if (core_vid == 0x00) {
+		/* Voltage off for VID code 0x00 */
+		voltage_in_uvolts = 0;
+	} else {
+		voltage_in_uvolts =
+			SERIAL_VID_BASE_MICROVOLTS + (SERIAL_VID_DECODE_MICROVOLTS * core_vid);
+	}
+
+	/* Power in mW */
+	power_in_mw = (voltage_in_uvolts) / 10 * current_value_amps;
+
+	switch (current_divisor) {
+	case 0:
+		power_in_mw = power_in_mw / 100L;
+		break;
+	case 1:
+		power_in_mw = power_in_mw / 1000L;
+		break;
+	case 2:
+		power_in_mw = power_in_mw / 10000L;
+		break;
+	case 3:
+		/* current_divisor is set to an undefined value.*/
+		printk(BIOS_WARNING, "Undefined current_divisor set for enabled P-state .\n");
+		power_in_mw = 0;
+		break;
+	}
+
+	return power_in_mw;
+}
+
+/*
+ * Populate structure describing enabled p-states and return count of enabled p-states.
+ */
+static size_t get_pstate_info(struct acpi_sw_pstate *pstate_values,
+			      struct acpi_xpss_sw_pstate *pstate_xpss_values)
+{
+	msr_t pstate_def;
+	size_t pstate_count, pstate;
+	uint32_t pstate_enable, max_pstate;
+
+	pstate_count = 0;
+	max_pstate = (rdmsr(PS_LIM_REG).lo & PS_LIM_MAX_VAL_MASK) >> PS_MAX_VAL_SHFT;
+
+	for (pstate = 0; pstate <= max_pstate; pstate++) {
+		pstate_def = rdmsr(PSTATE_0_MSR + pstate);
+
+		pstate_enable = (pstate_def.hi & PSTATE_DEF_HI_ENABLE_MASK)
+				>> PSTATE_DEF_HI_ENABLE_SHIFT;
+		if (!pstate_enable)
+			continue;
+
+		pstate_values[pstate_count].core_freq = get_pstate_core_freq(pstate_def);
+		pstate_values[pstate_count].power = get_pstate_core_power(pstate_def);
+		pstate_values[pstate_count].transition_latency = 0;
+		pstate_values[pstate_count].bus_master_latency = 0;
+		pstate_values[pstate_count].control_value = pstate;
+		pstate_values[pstate_count].status_value = pstate;
+
+		pstate_xpss_values[pstate_count].core_freq =
+			(uint64_t)pstate_values[pstate_count].core_freq;
+		pstate_xpss_values[pstate_count].power =
+			(uint64_t)pstate_values[pstate_count].power;
+		pstate_xpss_values[pstate_count].transition_latency = 0;
+		pstate_xpss_values[pstate_count].bus_master_latency = 0;
+		pstate_xpss_values[pstate_count].control_value = (uint64_t)pstate;
+		pstate_xpss_values[pstate_count].status_value = (uint64_t)pstate;
+		pstate_count++;
+	}
+
+	return pstate_count;
+}
+
+void generate_cpu_entries(const struct device *device)
+{
+	int logical_cores;
+	size_t pstate_count, cpu, proc_blk_len;
+	struct acpi_sw_pstate pstate_values[MAX_PSTATES] = { {0} };
+	struct acpi_xpss_sw_pstate pstate_xpss_values[MAX_PSTATES] = { {0} };
+	uint32_t threads_per_core, proc_blk_addr;
+	uint32_t cstate_base_address =
+		rdmsr(MSR_CSTATE_ADDRESS).lo & MSR_CSTATE_ADDRESS_MASK;
+
+	const acpi_addr_t perf_ctrl = {
+		.space_id = ACPI_ADDRESS_SPACE_FIXED,
+		.bit_width = 64,
+		.addrl = PS_CTL_REG,
+	};
+	const acpi_addr_t perf_sts = {
+		.space_id = ACPI_ADDRESS_SPACE_FIXED,
+		.bit_width = 64,
+		.addrl = PS_STS_REG,
+	};
+
+	const acpi_cstate_t cstate_info[] = {
+		[0] = {
+			.ctype = 1,
+			.latency = 1,
+			.power = 0,
+			.resource = {
+				.space_id = ACPI_ADDRESS_SPACE_FIXED,
+				.bit_width = 2,
+				.bit_offset = 2,
+				.addrl = 0,
+				.addrh = 0,
+			},
+		},
+		[1] = {
+			.ctype = 2,
+			.latency = 0x12,
+			.power = 0,
+			.resource = {
+				.space_id = ACPI_ADDRESS_SPACE_IO,
+				.bit_width = 8,
+				.bit_offset = 0,
+				.addrl = cstate_base_address + 1,
+				.addrh = 0,
+				.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS,
+			},
+		},
+		[2] = {
+			.ctype = 3,
+			.latency = 350,
+			.power = 0,
+			.resource = {
+				.space_id = ACPI_ADDRESS_SPACE_IO,
+				.bit_width = 8,
+				.bit_offset = 0,
+				.addrl = cstate_base_address + 2,
+				.addrh = 0,
+				.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS,
+			},
+		},
+	};
+
+	threads_per_core = get_threads_per_core();
+	pstate_count = get_pstate_info(pstate_values, pstate_xpss_values);
+	logical_cores = get_cpu_count();
+
+	for (cpu = 0; cpu < logical_cores; cpu++) {
+
+		if (cpu == 0) {
+			/* BSP values for \_SB.Pxxx */
+			proc_blk_len = 6;
+			proc_blk_addr = ACPI_GPE0_BLK;
+		} else {
+			/* AP values for \_SB.Pxxx */
+			proc_blk_addr = 0;
+			proc_blk_len = 0;
+		}
+
+		acpigen_write_processor(cpu, proc_blk_addr, proc_blk_len);
+
+		acpigen_write_pct_package(&perf_ctrl, &perf_sts);
+
+		acpigen_write_pss_object(pstate_values, pstate_count);
+
+		acpigen_write_xpss_object(pstate_xpss_values, pstate_count);
+
+		if (CONFIG(ACPI_SSDT_PSD_INDEPENDENT))
+			acpigen_write_PSD_package(cpu / threads_per_core, threads_per_core,
+						  HW_ALL);
+		else
+			acpigen_write_PSD_package(0, logical_cores, SW_ALL);
+
+		acpigen_write_PPC(0);
+
+		acpigen_write_CST_package(cstate_info, ARRAY_SIZE(cstate_info));
+
+		acpigen_write_CSD_package(cpu / threads_per_core, threads_per_core,
+					  CSD_HW_ALL, 0);
+
+		generate_cppc_entries(cpu);
+
+		acpigen_pop_len();
+	}
+
+	acpigen_write_processor_package("PPKG", 0, logical_cores);
+}