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libpayload/arch/x86: Introduce pacc pointer in sysinfo_t struct

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Currently, the PCI bus gets scanned multiple times for various reasons
(e.g. to read the device class). Therefore, and in preparation to
CB:46416, introduce the pacc pointer in the sysinfo_t struct and scan
the PCI bus while gathering system information.

Change-Id: I496c5a3d78c7fb5d7c9f119a0c9a0314d54e729f
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46348
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Felix Singer
2020-10-13 18:05:03 +02:00
committed by Nico Huber
parent 6034b0f184
commit 9e5bc74cc7
2 changed files with 10 additions and 0 deletions
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5
payloads/libpayload/arch/x86/sysinfo.c
View File

@@ -78,5 +78,10 @@ int lib_get_sysinfo(void)
lib_sysinfo.memrange[1].type = CB_MEM_RAM; lib_sysinfo.memrange[1].type = CB_MEM_RAM;
} }
#if CONFIG(LP_PCI)
pci_init(&lib_sysinfo.pacc);
pci_scan_bus(&lib_sysinfo.pacc);
#endif
return ret; return ret;
} }

5
payloads/libpayload/include/sysinfo.h
View File

@@ -29,6 +29,7 @@
#ifndef _SYSINFO_H #ifndef _SYSINFO_H
#define _SYSINFO_H #define _SYSINFO_H
#include <pci/pci.h>
#include <stdint.h> #include <stdint.h>
/* Maximum number of memory range definitions. */ /* Maximum number of memory range definitions. */
@@ -130,6 +131,10 @@ struct sysinfo_t {
/* Pointer to FMAP cache in CBMEM */ /* Pointer to FMAP cache in CBMEM */
uintptr_t fmap_cache; uintptr_t fmap_cache;
#if CONFIG(LP_PCI)
struct pci_access pacc;
#endif
}; };
extern struct sysinfo_t lib_sysinfo; extern struct sysinfo_t lib_sysinfo;