summaryrefslogtreecommitdiff
path: root/src/soc/intel/denverton_ns/acpi.c
blob: 5fd56b676984b1e20e4bce72f212713893a2c49a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2007 - 2009 coresystems GmbH
 * Copyright (C) 2013 Google Inc.
 * Copyright (C) 2014 - 2017 Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <arch/acpi.h>
#include <arch/acpigen.h>
#include <arch/cpu.h>
#include <arch/smp/mpspec.h>
#include <cpu/x86/smm.h>
#include <string.h>
#include <device/pci.h>
#include <cbmem.h>

#include <soc/acpi.h>
#include <soc/cpu.h>
#include <soc/soc_util.h>
#include <soc/pmc.h>
#include <soc/systemagent.h>

void acpi_init_gnvs(global_nvs_t *gnvs)
{
	/* CPU core count */
	gnvs->pcnt = dev_count_cpu();

	/* Top of Low Memory (start of resource allocation) */
	gnvs->tolm = top_of_32bit_ram();

#if IS_ENABLED(CONFIG_CONSOLE_CBMEM)
	/* Update the mem console pointer. */
	gnvs->cbmc = (u32)cbmem_find(CBMEM_ID_CONSOLE);
#endif

	/* MMIO Low/High & TSEG base and length */
	gnvs->mmiob = (u32)get_top_of_low_memory();
	gnvs->mmiol = (u32)(get_pciebase() - 1);
	gnvs->mmiohb = (u64)get_top_of_upper_memory();
	gnvs->mmiohl = (u64)(((u64)1 << CONFIG_CPU_ADDR_BITS) - 1);
	gnvs->tsegb = (u32)get_tseg_memory();
	gnvs->tsegl = (u32)(get_top_of_low_memory() - get_tseg_memory());
}

static int acpi_sci_irq(void)
{
	int scis, sci_irq;
	struct device *dev = get_pmc_dev();

	if (!dev)
		return 0;

	/* Determine how SCI is routed. */
	scis = pci_read_config32(dev, PMC_ACPI_CNT) & PMC_ACPI_CNT_SCIS_MASK;
	switch (scis) {
	case PMC_ACPI_CNT_SCIS_IRQ9:
	case PMC_ACPI_CNT_SCIS_IRQ10:
	case PMC_ACPI_CNT_SCIS_IRQ11:
		sci_irq = scis - PMC_ACPI_CNT_SCIS_IRQ9 + 9;
		break;
	case PMC_ACPI_CNT_SCIS_IRQ20:
	case PMC_ACPI_CNT_SCIS_IRQ21:
	case PMC_ACPI_CNT_SCIS_IRQ22:
	case PMC_ACPI_CNT_SCIS_IRQ23:
		sci_irq = scis - PMC_ACPI_CNT_SCIS_IRQ20 + 20;
		break;
	default:
		printk(BIOS_DEBUG, "Invalid SCI route! Defaulting to IRQ9.\n");
		sci_irq = 9;
		break;
	}

	printk(BIOS_DEBUG, "SCI is IRQ%d\n", sci_irq);
	return sci_irq;
}

unsigned long acpi_fill_mcfg(unsigned long current)
{
	u32 pciexbar_reg;
	int max_buses;

	pciexbar_reg = get_pciebase();
	max_buses = get_pcielength();

	if (!pciexbar_reg)
		return current;

	current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)current,
					     pciexbar_reg, 0x0, 0x0,
					     (u8)(max_buses - 1));

	return current;
}

void acpi_fill_in_fadt(acpi_fadt_t *fadt)
{
	u16 pmbase = get_pmbase();

	/* System Management */
	fadt->sci_int = acpi_sci_irq();
#if IS_ENABLED(CONFIG_HAVE_SMI_HANDLER)
	fadt->smi_cmd = APM_CNT;
	fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
	fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
#else
	fadt->smi_cmd = 0x00;
	fadt->acpi_enable = 0x00;
	fadt->acpi_disable = 0x00;
#endif

	/* Power Control */
	fadt->s4bios_req = 0x0;
	fadt->pstate_cnt = 0;

	fadt->pm1a_evt_blk = pmbase + PM1_STS;
	fadt->pm1b_evt_blk = 0x0;
	fadt->pm1a_cnt_blk = pmbase + PM1_CNT;
	fadt->pm1b_cnt_blk = 0x0;
	fadt->pm2_cnt_blk = pmbase + PM2_CNT;
	fadt->pm_tmr_blk = pmbase + PM1_TMR;
	fadt->gpe0_blk = pmbase + GPE0_STS(GPE_STD);
	fadt->gpe1_blk = 0;

	/* Control Registers - Length */
	fadt->pm1_evt_len = 4;
	fadt->pm1_cnt_len = 2;
	fadt->pm2_cnt_len = 1;
	fadt->pm_tmr_len = 4;
	fadt->gpe0_blk_len = 8;
	fadt->gpe1_blk_len = 0;
	fadt->gpe1_base = 0;
	fadt->cst_cnt = 0;
	fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
	fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
	fadt->flush_size = 0;   /* set to 0 if WBINVD is 1 in flags */
	fadt->flush_stride = 0; /* set to 0 if WBINVD is 1 in flags */
	fadt->duty_offset = 1;
	fadt->duty_width = 0;

	/* RTC Registers */
	fadt->day_alrm = 0x0D;
	fadt->mon_alrm = 0x00;
	fadt->century = 0x00;
	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;

	fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
		      ACPI_FADT_C2_MP_SUPPORTED | ACPI_FADT_SLEEP_BUTTON |
		      ACPI_FADT_RESET_REGISTER | ACPI_FADT_SLEEP_TYPE |
		      ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_PLATFORM_CLOCK;

	/* Reset Register */
	fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->reset_reg.bit_width = 8;
	fadt->reset_reg.bit_offset = 0;
	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
	fadt->reset_reg.addrl = 0xCF9;
	fadt->reset_reg.addrh = 0x00;
	fadt->reset_value = 6;

	/* PM1 Status & PM1 Enable */
	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_pm1a_evt_blk.bit_width = 32;
	fadt->x_pm1a_evt_blk.bit_offset = 0;
	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
	fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk;
	fadt->x_pm1a_evt_blk.addrh = 0x00;

	fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_pm1b_evt_blk.bit_width = 0;
	fadt->x_pm1b_evt_blk.bit_offset = 0;
	fadt->x_pm1b_evt_blk.access_size = 0;
	fadt->x_pm1b_evt_blk.addrl = fadt->pm1b_evt_blk;
	fadt->x_pm1b_evt_blk.addrh = 0x00;

	/* PM1 Control Registers */
	fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_pm1a_cnt_blk.bit_width = 16;
	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 = 0x00;

	fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_pm1b_cnt_blk.bit_width = 0;
	fadt->x_pm1b_cnt_blk.bit_offset = 0;
	fadt->x_pm1b_cnt_blk.access_size = 0;
	fadt->x_pm1b_cnt_blk.addrl = fadt->pm1b_cnt_blk;
	fadt->x_pm1b_cnt_blk.addrh = 0x00;

	/* PM2 Control Registers */
	fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_pm2_cnt_blk.bit_width = 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 = 0x00;

	/* PM1 Timer Register */
	fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_pm_tmr_blk.bit_width = 32;
	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 = 0x00;

	/*  General-Purpose Event Registers */
	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + EventEnable */
	fadt->x_gpe0_blk.bit_offset = 0;
	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
	fadt->x_gpe0_blk.addrh = 0x00;

	fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO;
	fadt->x_gpe1_blk.bit_width = 0;
	fadt->x_gpe1_blk.bit_offset = 0;
	fadt->x_gpe1_blk.access_size = 0;
	fadt->x_gpe1_blk.addrl = fadt->gpe1_blk;
	fadt->x_gpe1_blk.addrh = 0x00;
}

void generate_cpu_entries(struct device *device)
{
	int core;
	int pcontrol_blk = get_pmbase(), plen = 6;
	int num_cpus = get_cpu_count();

	for (core = 0; core < num_cpus; core++) {
		if (core > 0) {
			pcontrol_blk = 0;
			plen = 0;
		}

		/* Generate processor \_PR.CPUx */
		acpigen_write_processor(core, pcontrol_blk, plen);

		/* Generate  P-state tables */

		/* Generate C-state tables */

		/* Generate T-state tables */

		acpigen_pop_len();
	}
	/* PPKG is usually used for thermal management
	   of the first and only package. */
	acpigen_write_processor_package("PPKG", 0, num_cpus);

	/* Add a method to notify processor nodes */
	acpigen_write_processor_cnot(num_cpus);
}

unsigned long acpi_madt_irq_overrides(unsigned long current)
{
	int sci_irq = acpi_sci_irq();
	acpi_madt_irqoverride_t *irqovr;
	uint16_t sci_flags = MP_IRQ_TRIGGER_LEVEL;

	/* INT_SRC_OVR */
	irqovr = (acpi_madt_irqoverride_t *)current;
	current += acpi_create_madt_irqoverride(irqovr, 0, 0, 2, 0);

	if (sci_irq >= 20)
		sci_flags |= MP_IRQ_POLARITY_LOW;
	else
		sci_flags |= MP_IRQ_POLARITY_HIGH;

	irqovr = (acpi_madt_irqoverride_t *)current;
	current += acpi_create_madt_irqoverride(irqovr, 0, (u8)sci_irq, sci_irq,
						sci_flags);

	return current;
}

unsigned long southcluster_write_acpi_tables(struct device *device,
					     unsigned long current,
					     struct acpi_rsdp *rsdp)
{
	acpi_header_t *ssdt2;

	current = acpi_write_hpet(device, current, rsdp);
	current = (ALIGN(current, 16));

	ssdt2 = (acpi_header_t *)current;
	memset(ssdt2, 0, sizeof(acpi_header_t));
	acpi_create_serialio_ssdt(ssdt2);
	if (ssdt2->length) {
		current += ssdt2->length;
		acpi_add_table(rsdp, ssdt2);
		printk(BIOS_DEBUG, "ACPI:     * SSDT2 @ %p Length %x\n", ssdt2,
		       ssdt2->length);
		current = (ALIGN(current, 16));
	} else {
		ssdt2 = NULL;
		printk(BIOS_DEBUG, "ACPI:     * SSDT2 not generated.\n");
	}

	printk(BIOS_DEBUG, "current = %lx\n", current);

	return current;
}

void southcluster_inject_dsdt(struct device *device)
{
	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) {
		acpi_create_gnvs(gnvs);
		/* And tell SMI about it */
		smm_setup_structures(gnvs, NULL, NULL);

		/* Add it to DSDT.  */
		acpigen_write_scope("\\");
		acpigen_write_name_dword("NVSA", (u32)gnvs);
		acpigen_pop_len();
	}
}

__weak void acpi_create_serialio_ssdt(acpi_header_t *ssdt) {}