sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

vc/amd/opensil/genoa_poc/memmap: pass resource index as pointer

Browse Source 
To make add_opensil_memmap match the other function that are directly or
indirectly called by amd_pci_domain_read_resources, pass the resource
index as a pointer instead of passing it by value and then returning the
new resource index.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I6a17e488a01cc52b2dab5dd3e3d58bdf3acb554d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80269
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Felix Held 2024-01-30 15:33:34 +01:00
parent 30f36c35e7
commit fbda323e8a
3 changed files with 17 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/soc/amd/genoa_poc/domain.c
View File

@ -15,7 +15,7 @@
void read_soc_memmap_resources(struct device *domain, unsigned long *idx)
{
*idx = add_opensil_memmap(domain, *idx);
add_opensil_memmap(domain, idx);
}
static void genoa_domain_set_resources(struct device *domain)

32
src/vendorcode/amd/opensil/genoa_poc/memmap.c
View File

@ -84,11 +84,11 @@ static void print_memory_holes(void *unused)
BOOT_STATE_INIT_ENTRY(BS_DEV_RESOURCES, BS_ON_ENTRY, print_memory_holes, NULL);
// This assumes holes are allocated
unsigned long add_opensil_memmap(struct device *dev, unsigned long idx)
void add_opensil_memmap(struct device *dev, unsigned long *idx)
{
ram_from_to(dev, idx++, 0, 0xa0000);
mmio_from_to(dev, idx++, 0xa0000, 0xc0000); // legacy VGA
reserved_ram_from_to(dev, idx++, 0xc0000, 1 * MiB); // Option ROM
ram_from_to(dev, (*idx)++, 0, 0xa0000);
mmio_from_to(dev, (*idx)++, 0xa0000, 0xc0000); // legacy VGA
reserved_ram_from_to(dev, (*idx)++, 0xc0000, 1 * MiB); // Option ROM
uint32_t mem_usable = (uintptr_t)cbmem_top();
uintptr_t early_reserved_dram_start, early_reserved_dram_end;
@ -98,33 +98,33 @@ unsigned long add_opensil_memmap(struct device *dev, unsigned long idx)
early_reserved_dram_end = e->base + e->size;
// 1MB - bottom of DRAM reserved for early coreboot usage
ram_from_to(dev, idx++, 1 * MiB, early_reserved_dram_start);
ram_from_to(dev, (*idx)++, 1 * MiB, early_reserved_dram_start);
// DRAM reserved for early coreboot usage
reserved_ram_from_to(dev, idx++, early_reserved_dram_start,
reserved_ram_from_to(dev, (*idx)++, early_reserved_dram_start,
early_reserved_dram_end);
// top of DRAM consumed early - low top usable RAM
// cbmem_top() accounts for low UMA and TSEG if they are used.
ram_from_to(dev, idx++, early_reserved_dram_end,
ram_from_to(dev, (*idx)++, early_reserved_dram_end,
mem_usable);
// Account for UMA and TSEG
const uint32_t top_mem = ALIGN_DOWN(rdmsr(TOP_MEM).lo, 1 * MiB);
if (mem_usable != top_mem)
reserved_ram_from_to(dev, idx++, mem_usable, top_mem);
reserved_ram_from_to(dev, (*idx)++, mem_usable, top_mem);
mmconf_resource(dev, idx++);
mmconf_resource(dev, (*idx)++);
// Check if we're done
if (top_of_mem <= 0x100000000)
return idx;
return;
// Holes in upper DRAM
// This assumes all the holes in upper DRAM are continuous
get_hole_info();
if (hole_info == NULL)
return idx;
return;
uint64_t lowest_upper_hole_base = top_of_mem;
uint64_t highest_upper_hole_end = 0x100000000;
for (int hole = 0; hole < n_holes; hole++) {
@ -135,16 +135,14 @@ unsigned long add_opensil_memmap(struct device *dev, unsigned long idx)
lowest_upper_hole_base = MIN(lowest_upper_hole_base, hole_info[hole].Base);
highest_upper_hole_end = MAX(highest_upper_hole_end, hole_info[hole].Base + hole_info[hole].Size);
if (hole_info[hole].Type == UMA)
mmio_range(dev, idx++, hole_info[hole].Base, hole_info[hole].Size);
mmio_range(dev, (*idx)++, hole_info[hole].Base, hole_info[hole].Size);
else
reserved_ram_range(dev, idx++, hole_info[hole].Base, hole_info[hole].Size);
reserved_ram_range(dev, (*idx)++, hole_info[hole].Base, hole_info[hole].Size);
}
ram_from_to(dev, idx++, 0x100000000, lowest_upper_hole_base);
ram_from_to(dev, (*idx)++, 0x100000000, lowest_upper_hole_base);
// Do we need this?
if (top_of_mem > highest_upper_hole_end)
ram_from_to(dev, idx++, highest_upper_hole_end, top_of_mem);
return idx;
ram_from_to(dev, (*idx)++, highest_upper_hole_end, top_of_mem);
}

2
src/vendorcode/amd/opensil/genoa_poc/opensil.h
View File

@ -8,7 +8,7 @@
void SIL_STATUS_report(const char *function, const int status);
// Add the memory map to dev, starting at index idx, returns last use idx
unsigned long add_opensil_memmap(struct device *dev, unsigned long idx);
void add_opensil_memmap(struct device *dev, unsigned long *idx);
// Fill in FADT from openSIL
void opensil_fill_fadt_io_ports(acpi_fadt_t *fadt);