diff options
| author | Raul E Rangel <rrangel@chromium.org> | 2021-02-18 16:36:08 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-02-22 07:29:19 +0000 |
| commit | 58a8ad1661ab0fd869bcbc955010717c011951b0 (patch) | |
| tree | 258f3443c01475acff0cd112ee3f5eaeabbf7b69 /src/soc/amd/picasso | |
| parent | bde284b585d801f733f5d7bbe64491a7daaf552d (diff) | |
soc/amd: Move root complex SSDT TOM1/TOM2 generation function
This will also be used for cezanne. Stoney also has a similar function,
but it hard codes the scope path. I didn't have a device setup to test
if switching to this function was a no-op. So I left it.
TOM2 isn't used by any ASL, so we could remove it later.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I7c8f476a7735fea61a3244b97988e3ead3b42e79
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50892
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/soc/amd/picasso')
| -rw-r--r-- | src/soc/amd/picasso/root_complex.c | 26 |
1 files changed, 2 insertions, 24 deletions
diff --git a/src/soc/amd/picasso/root_complex.c b/src/soc/amd/picasso/root_complex.c index ee9764cb7d..c954701f74 100644 --- a/src/soc/amd/picasso/root_complex.c +++ b/src/soc/amd/picasso/root_complex.c @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpigen.h> +#include <amdblocks/acpi.h> #include <amdblocks/memmap.h> #include <amdblocks/ioapic.h> #include <arch/ioapic.h> @@ -8,7 +9,6 @@ #include <cbmem.h> #include <console/console.h> #include <cpu/amd/msr.h> -#include <cpu/amd/mtrr.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> @@ -241,31 +241,9 @@ static void acipgen_dptci(void) acpigen_pop_len(); /* Scope \_SB */ } -/* Used by \_SB.PCI0._CRS */ static void root_complex_fill_ssdt(const struct device *device) { - msr_t msr; - const char *scope; - - assert(device); - - scope = acpi_device_scope(device); - assert(scope); - acpigen_write_scope(scope); - - msr = rdmsr(TOP_MEM); - acpigen_write_name_dword("TOM1", msr.lo); - msr = rdmsr(TOP_MEM2); - /* - * Since XP only implements parts of ACPI 2.0, we can't use a qword - * here. - * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt - * slide 22ff. - * Shift value right by 20 bit to make it fit into 32bit, - * giving us 1MB granularity and a limit of almost 4Exabyte of memory. - */ - acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20); - acpigen_pop_len(); + acpi_fill_root_complex_tom(device); acipgen_dptci(); } |