diff options
| author | Raul E Rangel <rrangel@chromium.org> | 2020-12-15 13:31:56 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-01-08 08:12:53 +0000 |
| commit | 9882dde03f26a484e04d831ee56a8269ac39bd82 (patch) | |
| tree | 558eb2c2c5f227b695568fb9334acc174a6e5dd2 /src/soc/amd/picasso/pcie_gpp.c | |
| parent | 2ce045385ada871b49afe53b45e18290137fa489 (diff) | |
soc/amd/picasso: Generate GNB IO-APIC PCI routing table
This adds support for generating a PCI routing table that routes to the
GNB IO-APIC. This means we no longer need to route to the FCH IO-APIC
for PCI interrupts.
BUG=b:170595019
TEST=Boot ezkinil to OS with `pci=nomsi amd_iommu=off` and verify
all peripherals are working
CPU0 CPU1
0: 112 0 IO-APIC 2-edge timer
1: 0 99 IO-APIC 1-edge i8042
4: 0 2523 IO-APIC 4-edge ttyS0
5: 34632 0 IO-APIC 5-fasteoi mmc1
7: 5646 0 IO-APIC 7-fasteoi pinctrl_amd
8: 0 0 IO-APIC 8-edge rtc0
9: 0 33 IO-APIC 9-fasteoi acpi
10: 88258 0 IO-APIC 10-edge AMD0010:00
11: 0 32485 IO-APIC 11-edge AMD0010:01
24: 3301 0 amd_gpio 3 cr50_i2c
25: 0 235214 IO-APIC 28-fasteoi amdgpu
26: 67408 0 IO-APIC 31-fasteoi xhci-hcd:usb1
27: 0 488876 IO-APIC 8-fasteoi mmc0
28: 1265 0 amd_gpio 9 PNP0C50:00
29: 656 0 amd_gpio 12 ELAN9004:00
30: 413 0 amd_gpio 31 chromeos-ec
31: 14153 0 IO-APIC 4-fasteoi ath10k_pci
32: 2 0 sysfstrig0 cros-ec-accel_consumer3
33: 2 0 sysfstrig0 cros-ec-accel_consumer0
34: 6 0 amd_gpio 62 rt5682
35: 0 38937 IO-APIC 29-fasteoi snd_hda_intel:card0, ACP3x_I2S_IRQ
Cq-Depend: chrome-internal:3452710
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I3211ab351a332fafb7b5f9ef486bb6646d9a214c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48668
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nikolai Vyssotski <nikolai.vyssotski@amd.corp-partner.google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/soc/amd/picasso/pcie_gpp.c')
| -rw-r--r-- | src/soc/amd/picasso/pcie_gpp.c | 130 |
1 files changed, 100 insertions, 30 deletions
diff --git a/src/soc/amd/picasso/pcie_gpp.c b/src/soc/amd/picasso/pcie_gpp.c index ca368f94b1..8b6af4aa0f 100644 --- a/src/soc/amd/picasso/pcie_gpp.c +++ b/src/soc/amd/picasso/pcie_gpp.c @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-or-later */ #include <acpi/acpigen.h> +#include <arch/ioapic.h> #include <assert.h> #include <amdblocks/amd_pci_util.h> #include <device/device.h> @@ -139,9 +140,36 @@ static void acpigen_write_PRT(const struct device *dev) } acpigen_write_method("_PRT", 0); + + /* If (PMOD) */ + acpigen_write_if(); + acpigen_emit_namestring("PMOD"); + + /* Return (Package{...}) */ acpigen_emit_byte(RETURN_OP); - acpigen_write_package(4); + acpigen_write_package(4); /* Package - APIC Routing */ + for (unsigned int i = 0; i < 4; ++i) { + irq_index = calculate_irq(pci_routing, i); + + acpigen_write_package(4); + acpigen_write_dword(0x0000FFFF); + acpigen_write_byte(i); + acpigen_write_byte(0); /* Source: GSI */ + /* GNB IO-APIC is located after the FCH IO-APIC */ + acpigen_write_dword(IO_APIC_INTERRUPTS + irq_index); + acpigen_pop_len(); + } + acpigen_pop_len(); /* Package - APIC Routing */ + acpigen_pop_len(); /* End If */ + + /* Else */ + acpigen_write_else(); + + /* Return (Package{...}) */ + acpigen_emit_byte(RETURN_OP); + + acpigen_write_package(4); /* Package - PIC Routing */ for (unsigned int i = 0; i < 4; ++i) { irq_index = calculate_irq(pci_routing, i); @@ -154,7 +182,9 @@ static void acpigen_write_PRT(const struct device *dev) acpigen_write_dword(0); acpigen_pop_len(); } - acpigen_pop_len(); /* Package */ + acpigen_pop_len(); /* Package - PIC Routing */ + + acpigen_pop_len(); /* End Else */ acpigen_pop_len(); /* Method */ } @@ -174,40 +204,80 @@ static void acpigen_write_PRT(const struct device *dev) * * Method (_PRT, 0, NotSerialized) // _PRT: PCI Routing Table * { - * Return (Package (0x04) + * If (PMOD) * { - * Package (0x04) + * Return (Package (0x04) * { - * 0x0000FFFF, - * 0x00, - * \_SB.INTE, - * 0x00000000 - * }, + * Package (0x04) + * { + * 0x0000FFFF, + * 0x00, + * 0x00, + * 0x00000034 + * }, * - * Package (0x04) - * { - * 0x0000FFFF, - * 0x01, - * \_SB.INTF, - * 0x00000000 - * }, + * Package (0x04) + * { + * 0x0000FFFF, + * 0x01, + * 0x00, + * 0x00000035 + * }, * - * Package (0x04) - * { - * 0x0000FFFF, - * 0x02, - * \_SB.INTG, - * 0x00000000 - * }, + * Package (0x04) + * { + * 0x0000FFFF, + * 0x02, + * 0x00, + * 0x00000036 + * }, * - * Package (0x04) + * Package (0x04) + * { + * 0x0000FFFF, + * 0x03, + * 0x00, + * 0x00000037 + * } + * }) + * } + * Else + * { + * Return (Package (0x04) * { - * 0x0000FFFF, - * 0x03, - * \_SB.INTH, - * 0x00000000 - * } - * }) + * Package (0x04) + * { + * 0x0000FFFF, + * 0x00, + * \_SB.INTE, + * 0x00000000 + * }, + * + * Package (0x04) + * { + * 0x0000FFFF, + * 0x01, + * \_SB.INTF, + * 0x00000000 + * }, + * + * Package (0x04) + * { + * 0x0000FFFF, + * 0x02, + * \_SB.INTG, + * 0x00000000 + * }, + * + * Package (0x04) + * { + * 0x0000FFFF, + * 0x03, + * \_SB.INTH, + * 0x00000000 + * } + * }) + * } * } * } * } |