GNUBoot/coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
coreboot-kgpe-d16/src/cpu/x86/mtrr/earlymtrr.c

55 lines
1.4 KiB
C
Raw Normal View History

src/cpu/x86: Update/Add license headers to all files Change-Id: I436bf0e7db008ea78e29eaeef10bea101e6c8922 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/18405 Tested-by: build bot (Jenkins) Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2017-02-10 02:51:20 +01:00
/*
* This file is part of the coreboot project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
cpu/x86/mtrr: Replace CONFIG_CPU_ADDR_BITS with cpu_phys_address_size() This patch helps to generate correct MTRR mask value while using set_var_mtrr(). example: set_var_mtrr(1, 0x99000000, 16*MiB, WP) without CL : 0x0000000099000005: PHYBASE2: Address = 0x0000000099000000, WP 0x0000000fff000800: PHYMASK2: Length = 0x0000007001000000, Valid with CL : 0x0000000099000005: PHYBASE1: Address = 0x0000000099000000, WP 0x0000007fff000800: PHYMASK1: Length = 0x0000000001000000, Valid Change-Id: Ie3185dd8d4af73ec0605e19e9aa4223f2c2ad462 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34753 Reviewed-by: V Sowmya <v.sowmya@intel.com> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-08-07 05:24:15 +02:00
#include <cpu/cpu.h>
- Add new cvs code to cvs git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1657 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-10-14 21:29:29 +02:00
#include <cpu/x86/cache.h>
#include <cpu/x86/mtrr.h>
#include <cpu/x86/msr.h>
mtrr: Define a function for obtaining free var mtrr Instead of hard-coding var mtrr numbers in code, use this function to identify the first available variable mtrr. If no such mtrr is available, the function will return -1. Change-Id: I2a1e02cdb45c0ab7e30609641977471eaa2431fd Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/14115 Tested-by: build bot (Jenkins) Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
2016-03-17 00:12:06 +01:00
/* Get first available variable MTRR.
* Returns var# if available, else returns -1.
*/
int get_free_var_mtrr(void)
{
soc/intel/common: Bring DISPLAY_MTRRS into the light Initially, I wanted to move only the Kconfig DISPLAY_MTRRS into the "Debug" menu. It turned out, though, that the code looks rather generic. No need to hide it in soc/intel/. To not bloat src/Kconfig up any further, start a new `Kconfig.debug` hierarchy just for debug options. If somebody wants to review the code if it's 100% generic, we could even get rid of HAVE_DISPLAY_MTRRS. Change-Id: Ibd0a64121bd6e4ab5d7fd835f3ac25d3f5011f24 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/29684 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-11-13 19:28:07 +01:00
msr_t maskm;
mtrr: Define a function for obtaining free var mtrr Instead of hard-coding var mtrr numbers in code, use this function to identify the first available variable mtrr. If no such mtrr is available, the function will return -1. Change-Id: I2a1e02cdb45c0ab7e30609641977471eaa2431fd Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/14115 Tested-by: build bot (Jenkins) Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
2016-03-17 00:12:06 +01:00
int vcnt;
int i;
soc/intel/common: Bring DISPLAY_MTRRS into the light Initially, I wanted to move only the Kconfig DISPLAY_MTRRS into the "Debug" menu. It turned out, though, that the code looks rather generic. No need to hide it in soc/intel/. To not bloat src/Kconfig up any further, start a new `Kconfig.debug` hierarchy just for debug options. If somebody wants to review the code if it's 100% generic, we could even get rid of HAVE_DISPLAY_MTRRS. Change-Id: Ibd0a64121bd6e4ab5d7fd835f3ac25d3f5011f24 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/29684 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-11-13 19:28:07 +01:00
vcnt = get_var_mtrr_count();
mtrr: Define a function for obtaining free var mtrr Instead of hard-coding var mtrr numbers in code, use this function to identify the first available variable mtrr. If no such mtrr is available, the function will return -1. Change-Id: I2a1e02cdb45c0ab7e30609641977471eaa2431fd Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/14115 Tested-by: build bot (Jenkins) Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
2016-03-17 00:12:06 +01:00
/* Identify the first var mtrr which is not valid. */
for (i = 0; i < vcnt; i++) {
maskm = rdmsr(MTRR_PHYS_MASK(i));
if ((maskm.lo & MTRR_PHYS_MASK_VALID) == 0)
return i;
}
/* No free var mtrr. */
return -1;
}
AMD boards (non-AGESA): Cleanup earlymtrr.c includes Change-Id: I5f4bf9dbaf3470dc83d3e980bb6cab10801e15c1 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/4523 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
2013-12-12 11:27:53 +01:00
void set_var_mtrr(
cpu/x86: Add int to unsigned Fix the following warning detected by checkpatch.pl: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' TEST=Build and run on Galileo Gen2 Change-Id: I97bbe8ba19680bdb99fa38daa5e18b440c338576 Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18843 Tested-by: build bot (Jenkins) Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-15 22:55:05 +01:00
unsigned int reg, unsigned int base, unsigned int size,
unsigned int type)
- Add new cvs code to cvs git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1657 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-10-14 21:29:29 +02:00
{
/* Bit Bit 32-35 of MTRRphysMask should be set to 1 */
This is part of the outstanding mcp55 commit from January 18th. It will likely break the build, since it is only a small part, but it needs to go in at some point and doing it directory by directory makes things easier. Signed-off-by: Yinghai Lu <yinghai.lu at amd.com> Signed-off-by: Ed Swierk <eswierk at arastra.com> Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Ward Vandewege <ward at gnu.org> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2588 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-04-06 21:49:05 +02:00
/* FIXME: It only support 4G less range */
- Add new cvs code to cvs git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1657 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-10-14 21:29:29 +02:00
msr_t basem, maskm;
basem.lo = base | type;
basem.hi = 0;
cpu/mtrr.h: Fix macro names for MTRR registers We use UNDERSCORE_CASE. For the MTRR macros that refer to an MSR, we also remove the _MSR suffix, as they are, by definition, MSRs. Change-Id: Id4483a75d62cf1b478a9105ee98a8f55140ce0ef Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11761 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-10-01 05:23:09 +02:00
wrmsr(MTRR_PHYS_BASE(reg), basem);
maskm.lo = ~(size - 1) | MTRR_PHYS_MASK_VALID;
cpu/x86/mtrr: Replace CONFIG_CPU_ADDR_BITS with cpu_phys_address_size() This patch helps to generate correct MTRR mask value while using set_var_mtrr(). example: set_var_mtrr(1, 0x99000000, 16*MiB, WP) without CL : 0x0000000099000005: PHYBASE2: Address = 0x0000000099000000, WP 0x0000000fff000800: PHYMASK2: Length = 0x0000007001000000, Valid with CL : 0x0000000099000005: PHYBASE1: Address = 0x0000000099000000, WP 0x0000007fff000800: PHYMASK1: Length = 0x0000000001000000, Valid Change-Id: Ie3185dd8d4af73ec0605e19e9aa4223f2c2ad462 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34753 Reviewed-by: V Sowmya <v.sowmya@intel.com> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-08-07 05:24:15 +02:00
maskm.hi = (1 << (cpu_phys_address_size() - 32)) - 1;
cpu/mtrr.h: Fix macro names for MTRR registers We use UNDERSCORE_CASE. For the MTRR macros that refer to an MSR, we also remove the _MSR suffix, as they are, by definition, MSRs. Change-Id: Id4483a75d62cf1b478a9105ee98a8f55140ce0ef Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11761 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-10-01 05:23:09 +02:00
wrmsr(MTRR_PHYS_MASK(reg), maskm);
- Add new cvs code to cvs git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1657 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2004-10-14 21:29:29 +02:00
}
Reference in a new issue Copy permalink