mb/google/brya/var/agah: Remove variant_fill_ssdt()

Since the GPU will be left powered on, the kernel has the opportunity to
save context and this method to save the BARs is not required.

BUG=b:233959099, b:236289930
TEST=build

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I19cf12426361a53e3672c1e05aa6d68d5dd6627c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65208
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>

1 files changed, 0 insertions, 61 deletions

diff --git a/src/mainboard/google/brya/variants/agah/variant.c b/src/mainboard/google/brya/variants/agah/variant.c
index 73fe75bc20..737cdd241b 100644
--- a/src/mainboard/google/brya/variants/agah/variant.c
+++ b/src/mainboard/google/brya/variants/agah/variant.c
@@ -137,64 +137,3 @@ void variant_init(void)
 
 	dgpu_power_sequence_on();
 }
-
-/* Save PCI BARs to the ACPI copy of the "saved PCI config space" */
-void variant_fill_ssdt(const struct device *unused)
-{
-	if (!gpu_powered_on)
-		return;
-
-	const struct device *dgpu = DEV_PTR(dgpu);
-	acpigen_write_scope("\\_SB.PCI0.PEG0.PEGP");
-	acpigen_write_method("_INI", 0);
-	{
-		/* Local0 = VGAR */
-		acpigen_write_store();
-		acpigen_emit_namestring("VGAR");
-		acpigen_emit_byte(LOCAL0_OP);
-
-		/*
-		 * CreateDWordField(Local0, 11, BAR0)
-		 * BAR0 = bases[0]
-		 * CreateDWordField(Local0, 15, BAR1)
-		 * BAR1 = bases[1]
-		 * ...
-		 */
-		unsigned int idx, i = 0;
-		for (idx = PCI_BASE_ADDRESS_0; idx <= PCI_BASE_ADDRESS_5; idx += 4, ++i) {
-			char name[ACPI_NAME_BUFFER_SIZE];
-			const struct resource *res;
-
-			res = probe_resource(dgpu, idx);
-			if (!res || !(res->flags & IORESOURCE_STORED))
-				continue;
-
-			snprintf(name, sizeof(name), "BAR%1d", i);
-			acpigen_write_create_dword_field(LOCAL0_OP, idx - VGAR_BYTE_OFFSET,
-							 name);
-			acpigen_write_store_int_to_namestr(res->base & 0xffffffff, name);
-			printk(BIOS_INFO, "GPU: saving %s as 0x%x\n", name,
-			       (uint32_t)(res->base & 0xffffffff));
-
-			/* Also save the upper 32 bits of the BAR if applicable */
-			if (!(res->flags & IORESOURCE_PCI64))
-				continue;
-
-			idx += sizeof(uint32_t);
-			i++;
-			snprintf(name, sizeof(name), "BAR%1d", i);
-			acpigen_write_create_dword_field(LOCAL0_OP, idx - VGAR_BYTE_OFFSET,
-							 name);
-			acpigen_write_store_int_to_namestr((res->base >> 32) & 0xffffffff,
-							   name);
-			printk(BIOS_INFO, "GPU: saving %s as 0x%x\n", name,
-			       (uint32_t)((res->base >> 32) & 0xffffffff));
-		}
-
-		/* VGAR = Local0 */
-		acpigen_write_store_op_to_namestr(LOCAL0_OP, "VGAR");
-	}
-
-	acpigen_write_method_end();
-	acpigen_write_scope_end();
-}