diff options
author | Scott Duplichan <scott@notabs.org> | 2010-10-19 04:58:49 +0000 |
---|---|---|
committer | Scott Duplichan <scott@notabs.org> | 2010-10-19 04:58:49 +0000 |
commit | 1ba2eee2b4f38231254525a6a4ffcf1999dea636 (patch) | |
tree | e5a0dcbd155aa0374ef35d9ac5cd85dfc2105abc /src/cpu | |
parent | 236aef238f6e5c735cc9f253746def582fbaf8ff (diff) | |
download | coreboot-1ba2eee2b4f38231254525a6a4ffcf1999dea636.tar.xz |
Revision 5966 changed the end of line style of the 3 modified files. This change restores the original end of line style.
Signed-off-by: Scott Duplichan <scott@notabs.org>
Acked-by: Scott Duplichan <scott@notabs.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5968 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu')
-rw-r--r-- | src/cpu/amd/model_10xxx/fidvid.c | 1676 | ||||
-rw-r--r-- | src/cpu/amd/model_10xxx/init_cpus.c | 1890 |
2 files changed, 1783 insertions, 1783 deletions
diff --git a/src/cpu/amd/model_10xxx/fidvid.c b/src/cpu/amd/model_10xxx/fidvid.c index 6104f9c3f6..22295c5654 100644 --- a/src/cpu/amd/model_10xxx/fidvid.c +++ b/src/cpu/amd/model_10xxx/fidvid.c @@ -1,838 +1,838 @@ -/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007 Advanced Micro Devices, Inc.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#if SET_FIDVID == 1
-#include <northbridge/amd/amdht/AsPsDefs.h>
-
-#define SET_FIDVID_DEBUG 1
-
-// if we are tight of CAR stack, disable it
-#define SET_FIDVID_STORE_AP_APICID_AT_FIRST 1
-
-static inline void print_debug_fv(const char *str, u32 val)
-{
-#if SET_FIDVID_DEBUG == 1
- printk(BIOS_DEBUG, "%s%x\n", str, val);
-#endif
-}
-
-static inline void print_debug_fv_8(const char *str, u8 val)
-{
-#if SET_FIDVID_DEBUG == 1
- printk(BIOS_DEBUG, "%s%02x\n", str, val);
-#endif
-}
-
-static inline void print_debug_fv_64(const char *str, u32 val, u32 val2)
-{
-#if SET_FIDVID_DEBUG == 1
- printk(BIOS_DEBUG, "%s%x%x\n", str, val, val2);
-#endif
-}
-
-struct fidvid_st {
- u32 common_fid;
-};
-
-static void enable_fid_change(u8 fid)
-{
- u32 dword;
- u32 nodes;
- device_t dev;
- int i;
-
- nodes = get_nodes();
-
- for (i = 0; i < nodes; i++) {
- dev = NODE_PCI(i, 3);
- dword = pci_read_config32(dev, 0xd4);
- dword &= ~0x1F;
- dword |= (u32) fid & 0x1F;
- dword |= 1 << 5; // enable
- pci_write_config32(dev, 0xd4, dword);
- printk(BIOS_DEBUG, "FID Change Node:%02x, F3xD4: %08x \n", i,
- dword);
- }
-}
-
-static void recalculateVsSlamTimeSettingOnCorePre(device_t dev)
-{
- u8 pviModeFlag;
- u8 highVoltageVid, lowVoltageVid, bValue;
- u16 minimumSlamTime;
- u16 vSlamTimes[7] = { 1000, 2000, 3000, 4000, 6000, 10000, 20000 }; /* Reg settings scaled by 100 */
- u32 dtemp;
- msr_t msr;
-
- /* This function calculates the VsSlamTime using the range of possible
- * voltages instead of a hardcoded 200us.
- * Note:This function is called from setFidVidRegs and setUserPs after
- * programming a custom Pstate.
- */
-
- /* Calculate Slam Time
- * Vslam = 0.4us/mV * Vp0 - (lowest out of Vpmin or Valt)
- * In our case, we will scale the values by 100 to avoid
- * decimals.
- */
-
- /* Determine if this is a PVI or SVI system */
- dtemp = pci_read_config32(dev, 0xA0);
-
- if (dtemp & PVI_MODE)
- pviModeFlag = 1;
- else
- pviModeFlag = 0;
-
- /* Get P0's voltage */
- msr = rdmsr(0xC0010064);
- highVoltageVid = (u8) ((msr.lo >> PS_CPU_VID_SHFT) & 0x7F);
-
- /* If SVI, we only care about CPU VID.
- * If PVI, determine the higher voltage b/t NB and CPU
- */
- if (pviModeFlag) {
- bValue = (u8) ((msr.lo >> PS_NB_VID_SHFT) & 0x7F);
- if (highVoltageVid > bValue)
- highVoltageVid = bValue;
- }
-
- /* Get Pmin's index */
- msr = rdmsr(0xC0010061);
- bValue = (u8) ((msr.lo >> PS_CUR_LIM_SHFT) & BIT_MASK_3);
-
- /* Get Pmin's VID */
- msr = rdmsr(0xC0010064 + bValue);
- lowVoltageVid = (u8) ((msr.lo >> PS_CPU_VID_SHFT) & 0x7F);
-
- /* If SVI, we only care about CPU VID.
- * If PVI, determine the higher voltage b/t NB and CPU
- */
- if (pviModeFlag) {
- bValue = (u8) ((msr.lo >> PS_NB_VID_SHFT) & 0x7F);
- if (lowVoltageVid > bValue)
- lowVoltageVid = bValue;
- }
-
- /* Get AltVID */
- dtemp = pci_read_config32(dev, 0xDC);
- bValue = (u8) (dtemp & BIT_MASK_7);
-
- /* Use the VID with the lowest voltage (higher VID) */
- if (lowVoltageVid < bValue)
- lowVoltageVid = bValue;
-
- /* If Vids are 7Dh - 7Fh, force 7Ch to keep calculations linear */
- if (lowVoltageVid > 0x7C) {
- lowVoltageVid = 0x7C;
- if (highVoltageVid > 0x7C)
- highVoltageVid = 0x7C;
- }
-
- bValue = (u8) (lowVoltageVid - highVoltageVid);
-
- /* Each Vid increment is 12.5 mV. The minimum slam time is:
- * vidCodeDelta * 12.5mV * 0.4us/mV
- * Scale by 100 to avoid decimals.
- */
- minimumSlamTime = bValue * (125 * 4);
-
- /* Now round up to nearest register setting.
- * Note that if we don't find a value, we
- * will fall through to a value of 7
- */
- for (bValue = 0; bValue < 7; bValue++) {
- if (minimumSlamTime <= vSlamTimes[bValue])
- break;
- }
-
- /* Apply the value */
- dtemp = pci_read_config32(dev, 0xD8);
- dtemp &= VSSLAM_MASK;
- dtemp |= bValue;
- pci_write_config32(dev, 0xd8, dtemp);
-}
-
-static void prep_fid_change(void)
-{
- u32 dword, dtemp;
- u32 nodes;
- device_t dev;
- int i;
-
- /* This needs to be run before any Pstate changes are requested */
-
- nodes = get_nodes();
-
- for (i = 0; i < nodes; i++) {
- printk(BIOS_DEBUG, "Prep FID/VID Node:%02x \n", i);
- dev = NODE_PCI(i, 3);
-
- dword = pci_read_config32(dev, 0xd8);
- dword &= VSRAMP_MASK;
- dword |= VSRAMP_VALUE;
- pci_write_config32(dev, 0xd8, dword);
-
- /* Figure out the value for VsSlamTime and program it */
- recalculateVsSlamTimeSettingOnCorePre(dev);
-
- /* Program fields in Clock Power/Control register0 (F3xD4) */
- /* set F3xD4 Clock Power/Timing Control 0 Register
- * NbClkDidApplyAll=1b
- * NbClkDid=100b
- * PowerStepUp= "platform dependent"
- * PowerStepDown= "platform dependent"
- * LinkPllLink=01b
- * ClkRampHystSel=HW default
- */
- /* check platform type */
- if (!(get_platform_type() & AMD_PTYPE_SVR)) {
- /* For non-server platform
- * PowerStepUp=01000b - 50nS
- * PowerStepDown=01000b - 50ns
- */
- dword = pci_read_config32(dev, 0xd4);
- dword &= CPTC0_MASK;
- dword |= NB_CLKDID_ALL | NB_CLKDID | PW_STP_UP50 | PW_STP_DN50 | LNK_PLL_LOCK; /* per BKDG */
- pci_write_config32(dev, 0xd4, dword);
- } else {
- dword = pci_read_config32(dev, 0xd4);
- dword &= CPTC0_MASK;
- /* get number of cores for PowerStepUp & PowerStepDown in server
- 1 core - 400nS - 0000b
- 2 cores - 200nS - 0010b
- 3 cores - 133nS -> 100nS - 0011b
- 4 cores - 100nS - 0011b
- */
- switch (get_core_num_in_bsp(i)) {
- case 0:
- dword |= PW_STP_UP400 | PW_STP_DN400;
- break;
- case 1:
- case 2:
- dword |= PW_STP_UP200 | PW_STP_DN200;
- break;
- case 3:
- dword |= PW_STP_UP100 | PW_STP_DN100;
- break;
- default:
- dword |= PW_STP_UP100 | PW_STP_DN100;
- break;
- }
- dword |= NB_CLKDID_ALL | NB_CLKDID | LNK_PLL_LOCK;
- pci_write_config32(dev, 0xd4, dword);
- }
-
- /* check PVI/SVI */
- dword = pci_read_config32(dev, 0xA0);
- if (dword & PVI_MODE) { /* PVI */
- /* set slamVidMode to 0 for PVI */
- dword &= VID_SLAM_OFF | PLLLOCK_OFF;
- dword |= PLLLOCK_DFT_L;
- pci_write_config32(dev, 0xA0, dword);
- } else { /* SVI */
- /* set slamVidMode to 1 for SVI */
- dword &= PLLLOCK_OFF;
- dword |= PLLLOCK_DFT_L | VID_SLAM_ON;
- pci_write_config32(dev, 0xA0, dword);
-
- dtemp = dword;
-
- /* Program F3xD8[PwrPlanes] according F3xA0[DulaVdd] */
- dword = pci_read_config32(dev, 0xD8);
-
- if (dtemp & DUAL_VDD_BIT)
- dword |= PWR_PLN_ON;
- else
- dword &= PWR_PLN_OFF;
- pci_write_config32(dev, 0xD8, dword);
- }
-
- /* Note the following settings are additional from the ported
- * function setFidVidRegs()
- */
- dword = pci_read_config32(dev, 0xDc);
- dword |= 0x5 << 12; /* NbsynPtrAdj set to 0x5 per BKDG (needs reset) */
- pci_write_config32(dev, 0xdc, dword);
-
- /* Rev B settings - FIXME: support other revs. */
- dword = 0xA0E641E6;
- pci_write_config32(dev, 0x84, dword);
-
- dword = 0xE600A681;
- pci_write_config32(dev, 0x80, dword);
-
- dword = pci_read_config32(dev, 0x80);
- printk(BIOS_DEBUG, " F3x80: %08x \n", dword);
- dword = pci_read_config32(dev, 0x84);
- printk(BIOS_DEBUG, " F3x84: %08x \n", dword);
- dword = pci_read_config32(dev, 0xD4);
- printk(BIOS_DEBUG, " F3xD4: %08x \n", dword);
- dword = pci_read_config32(dev, 0xD8);
- printk(BIOS_DEBUG, " F3xD8: %08x \n", dword);
- dword = pci_read_config32(dev, 0xDC);
- printk(BIOS_DEBUG, " F3xDC: %08x \n", dword);
-
-
- }
-}
-
-
-static void UpdateSinglePlaneNbVid(void)
-{
- u32 nbVid, cpuVid;
- u8 i;
- msr_t msr;
-
- /* copy higher voltage (lower VID) of NBVID & CPUVID to both */
- for (i = 0; i < 5; i++) {
- msr = rdmsr(PS_REG_BASE + i);
- nbVid = (msr.lo & PS_CPU_VID_M_ON) >> PS_CPU_VID_SHFT;
- cpuVid = (msr.lo & PS_NB_VID_M_ON) >> PS_NB_VID_SHFT;
-
- if (nbVid != cpuVid) {
- if (nbVid > cpuVid)
- nbVid = cpuVid;
-
- msr.lo = msr.lo & PS_BOTH_VID_OFF;
- msr.lo = msr.lo | (u32) ((nbVid) << PS_NB_VID_SHFT);
- msr.lo = msr.lo | (u32) ((nbVid) << PS_CPU_VID_SHFT);
- wrmsr(PS_REG_BASE + i, msr);
- }
- }
-}
-
-static void fixPsNbVidBeforeWR(u32 newNbVid, u32 coreid)
-{
- msr_t msr;
- u8 startup_pstate;
-
- /* This function sets NbVid before the warm reset.
- * Get StartupPstate from MSRC001_0071.
- * Read Pstate register pionted by [StartupPstate].
- * and copy its content to P0 and P1 registers.
- * Copy newNbVid to P0[NbVid].
- * transition to P1 on all cores,
- * then transition to P0 on core 0.
- * Wait for MSRC001_0063[CurPstate] = 000b on core 0.
- */
-
- msr = rdmsr(0xc0010071);
- startup_pstate = (msr.hi >> (32 - 32)) & 0x07;
-
- /* Copy startup pstate to P1 and P0 MSRs. Set the maxvid for this node in P0.
- * Then transition to P1 for corex and P0 for core0.
- * These setting will be cleared by the warm reset
- */
- msr = rdmsr(0xC0010064 + startup_pstate);
- wrmsr(0xC0010065, msr);
- wrmsr(0xC0010064, msr);
-
- msr.lo &= ~0xFE000000; // clear nbvid
- msr.lo |= newNbVid << 25;
- wrmsr(0xC0010064, msr);
-
- UpdateSinglePlaneNbVid();
-
- // Transition to P1 for all APs and P0 for core0.
- msr = rdmsr(0xC0010062);
- msr.lo = (msr.lo & ~0x07) | 1;
- wrmsr(0xC0010062, msr);
-
- // Wait for P1 to set.
- do {
- msr = rdmsr(0xC0010063);
- } while (msr.lo != 1);
-
- if (coreid == 0) {
- msr.lo = msr.lo & ~0x07;
- wrmsr(0xC0010062, msr);
- // Wait for P0 to set.
- do {
- msr = rdmsr(0xC0010063);
- } while (msr.lo != 0);
- }
-}
-
-static void coreDelay(void)
-{
- u32 saved;
- u32 hi, lo, msr;
- u32 cycles;
-
- /* delay ~40us
- This seems like a hack to me...
- It would be nice to have a central delay function. */
-
- cycles = 8000 << 3; /* x8 (number of 1.25ns ticks) */
-
- msr = 0x10; /* TSC */
- _RDMSR(msr, &lo, &hi);
- saved = lo;
- do {
- _RDMSR(msr, &lo, &hi);
- } while (lo - saved < cycles);
-}
-
-static void transitionVid(u32 targetVid, u8 dev, u8 isNb)
-{
- u32 currentVid, dtemp;
- msr_t msr;
- u8 vsTimecode;
- u16 timeTable[8] = { 10, 20, 30, 40, 60, 100, 200, 500 };
- int vsTime;
-
- /* This function steps or slam the Nb VID to the target VID.
- * It uses VSRampTime for [SlamVidMode]=0 ([PviMode]=1)
- * or VSSlamTime for [SlamVidMode]=1 ([PviMode]=0)to time period.
- */
-
- /* get the current VID */
- msr = rdmsr(0xC0010071);
- if (isNb)
- currentVid = (msr.lo >> NB_VID_POS) & BIT_MASK_7;
- else
- currentVid = (msr.lo >> CPU_VID_POS) & BIT_MASK_7;
-
- /* Read MSRC001_0070 COFVID Control Register */
- msr = rdmsr(0xC0010070);
-
- /* check PVI/SPI */
- dtemp = pci_read_config32(dev, 0xA0);
- if (dtemp & PVI_MODE) { /* PVI, step VID */
- if (currentVid < targetVid) {
- while (currentVid < targetVid) {
- currentVid++;
- if (isNb)
- msr.lo = (msr.lo & NB_VID_MASK_OFF) | (currentVid << NB_VID_POS);
- else
- msr.lo = (msr.lo & CPU_VID_MASK_OFF) | (currentVid << CPU_VID_POS);
- wrmsr(0xC0010070, msr);
-
- /* read F3xD8[VSRampTime] */
- dtemp = pci_read_config32(dev, 0xD8);
- vsTimecode = (u8) ((dtemp >> VS_RAMP_T) & 0x7);
- vsTime = (int)timeTable[vsTimecode];
- do {
- coreDelay();
- vsTime -= 40;
- } while (vsTime > 0);
- }
- } else if (currentVid > targetVid) {
- while (currentVid > targetVid) {
- currentVid--;
- if (isNb)
- msr.lo = (msr.lo & NB_VID_MASK_OFF) | (currentVid << NB_VID_POS);
- else
- msr.lo = (msr.lo & CPU_VID_MASK_OFF) | (currentVid << CPU_VID_POS);
- wrmsr(0xC0010070, msr);
-
- /* read F3xD8[VSRampTime] */
- dtemp = pci_read_config32(dev, 0xD8);
- vsTimecode = (u8) ((dtemp >> VS_RAMP_T) & 0x7);
- vsTime = (int)timeTable[vsTimecode];
- do {
- coreDelay();
- vsTime -= 40;
- } while (vsTime > 0);
- }
- }
- } else { /* SVI, slam VID */
- if (isNb)
- msr.lo = (msr.lo & NB_VID_MASK_OFF) | (targetVid << NB_VID_POS);
- else
- msr.lo = (msr.lo & CPU_VID_MASK_OFF) | (targetVid << CPU_VID_POS);
- wrmsr(0xC0010070, msr);
-
- /* read F3xD8[VSRampTime] */
- dtemp = pci_read_config32(dev, 0xD8);
- vsTimecode = (u8) ((dtemp >> VS_RAMP_T) & 0x7);
- vsTime = (int)timeTable[vsTimecode];
- do {
- coreDelay();
- vsTime -= 40;
- } while (vsTime > 0);
- }
-}
-
-
-static void init_fidvid_ap(u32 bsp_apicid, u32 apicid, u32 nodeid, u32 coreid)
-{
- device_t dev;
- u32 vid_max;
- u32 fid_max;
- u8 nb_cof_vid_update;
- u8 pvimode;
- u32 reg1fc;
- u32 send;
- u8 nodes;
- u8 i;
-
- printk(BIOS_DEBUG, "FIDVID on AP: %02x\n", apicid);
-
- /* Steps 1-6 of BIOS NB COF and VID Configuration
- * for SVI and Single-Plane PVI Systems.
- */
-
- /* If any node has nb_cof_vid_update set all nodes need an update. */
- nodes = get_nodes();
- nb_cof_vid_update = 0;
- for (i = 0; i < nodes; i++) {
- if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) {
- nb_cof_vid_update = 1;
- break;
- }
- }
-
- dev = NODE_PCI(nodeid, 3);
- pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1;
- reg1fc = pci_read_config32(dev, 0x1FC);
-
- if (nb_cof_vid_update) {
- if (pvimode) {
- vid_max = (reg1fc >> 7) & 0x7F;
- fid_max = (reg1fc >> 2) & 0x1F;
-
- /* write newNbVid to P-state Reg's NbVid always if NbVidUpdatedAll=1 */
- fixPsNbVidBeforeWR(vid_max, coreid);
- } else { /* SVI */
- vid_max = ((reg1fc >> 7) & 0x7F) - ((reg1fc >> 17) & 0x1F);
- fid_max = ((reg1fc >> 2) & 0x1F) + ((reg1fc >> 14) & 0x7);
- transitionVid(vid_max, dev, IS_NB);
- }
-
- /* fid setup is handled by the BSP at the end. */
-
- } else { /* ! nb_cof_vid_update */
- /* Use max values */
- if (pvimode)
- UpdateSinglePlaneNbVid();
- }
-
- send = (nb_cof_vid_update << 16) | (fid_max << 8);
- send |= (apicid << 24); // ap apicid
-
- // Send signal to BSP about this AP max fid
- // This also indicates this AP is ready for warm reset (if required).
- lapic_write(LAPIC_MSG_REG, send | F10_APSTATE_RESET);
-}
-
-static u32 calc_common_fid(u32 fid_packed, u32 fid_packed_new)
-{
- u32 fidmax;
- u32 fidmax_new;
-
- fidmax = (fid_packed >> 8) & 0xFF;
-
- fidmax_new = (fid_packed_new >> 8) & 0xFF;
-
- if (fidmax > fidmax_new) {
- fidmax = fidmax_new;
- }
-
- fid_packed &= 0xFF << 16;
- fid_packed |= (fidmax << 8);
- fid_packed |= fid_packed_new & (0xFF << 16); // set nb_cof_vid_update
-
- return fid_packed;
-}
-
-static void init_fidvid_bsp_stage1(u32 ap_apicid, void *gp)
-{
- u32 readback = 0;
- u32 timeout = 1;
-
- struct fidvid_st *fvp = gp;
- int loop;
-
- print_debug_fv("Wait for AP stage 1: ap_apicid = ", ap_apicid);
-
- loop = 100000;
- while (--loop > 0) {
- if (lapic_remote_read(ap_apicid, LAPIC_MSG_REG, &readback) != 0)
- continue;
- if ((readback & 0x3f) == 1) {
- timeout = 0;
- break; /* target ap is in stage 1 */
- }
- }
-
- if (timeout) {
- printk(BIOS_DEBUG, "%s: timed out reading from ap %02x\n",
- __func__, ap_apicid);
- return;
- }
-
- print_debug_fv("\treadback = ", readback);
-
- fvp->common_fid = calc_common_fid(fvp->common_fid, readback);
-
- print_debug_fv("\tcommon_fid(packed) = ", fvp->common_fid);
-
-}
-
-static void updateSviPsNbVidAfterWR(u32 newNbVid)
-{
- msr_t msr;
- u8 i;
-
- /* This function copies newNbVid to NbVid bits in P-state Registers[4:0]
- * for SVI mode.
- */
-
- for (i = 0; i < 5; i++) {
- msr = rdmsr(0xC0010064 + i);
- if ((msr.hi >> 31) & 1) { /* PstateEn? */
- msr.lo &= ~(0x7F << 25);
- msr.lo |= (newNbVid & 0x7F) << 25;
- wrmsr(0xC0010064 + i, msr);
- }
- }
-}
-
-
-static void fixPsNbVidAfterWR(u32 newNbVid, u8 NbVidUpdatedAll)
-{
- msr_t msr;
- u8 i;
- u8 StartupPstate;
-
- /* This function copies newNbVid to NbVid bits in P-state
- * Registers[4:0] if its NbDid bit=0 and PstateEn bit =1 in case of
- * NbVidUpdatedAll =0 or copies copies newNbVid to NbVid bits in
- * P-state Registers[4:0] if its and PstateEn bit =1 in case of
- * NbVidUpdatedAll=1. Then transition to StartPstate.
- */
-
- /* write newNbVid to P-state Reg's NbVid if its NbDid=0 */
- for (i = 0; i < 5; i++) {
- msr = rdmsr(0xC0010064 + i);
- /* NbDid (bit 22 of P-state Reg) == 0 or NbVidUpdatedAll = 1 */
- if ((((msr.lo >> 22) & 1) == 0) || NbVidUpdatedAll) {
- msr.lo &= ~(0x7F << 25);
- msr.lo |= (newNbVid & 0x7F) << 25;
- wrmsr(0xC0010064 + i, msr);
- }
- }
-
- UpdateSinglePlaneNbVid();
-
- /* For each core in the system, transition all cores to StartupPstate */
- msr = rdmsr(0xC0010071);
- StartupPstate = msr.hi & 0x07;
- msr = rdmsr(0xC0010062);
- msr.lo = StartupPstate;
- wrmsr(0xC0010062, msr);
-
- /* Wait for StartupPstate to set. */
- do {
- msr = rdmsr(0xC0010063);
- } while (msr.lo != StartupPstate);
-}
-
-static void set_p0(void)
-{
- msr_t msr;
-
- // Transition P0 for calling core.
- msr = rdmsr(0xC0010062);
- msr.lo = (msr.lo & ~0x07);
- wrmsr(0xC0010062, msr);
-
- /* Wait for P0 to set. */
- do {
- msr = rdmsr(0xC0010063);
- } while (msr.lo != 0);
-}
-
-static void finalPstateChange(void)
-{
- /* Enble P0 on all cores for best performance.
- * Linux can slow them down later if need be.
- * It is safe since they will be in C1 halt
- * most of the time anyway.
- */
- set_p0();
-}
-
-static void init_fidvid_stage2(u32 apicid, u32 nodeid)
-{
- msr_t msr;
- device_t dev;
- u32 reg1fc;
- u32 dtemp;
- u32 nbvid;
- u8 nb_cof_vid_update;
- u8 nodes;
- u8 NbVidUpdateAll;
- u8 i;
- u8 pvimode;
-
- /* After warm reset finish the fid/vid setup for all cores. */
-
- /* If any node has nb_cof_vid_update set all nodes need an update. */
- nodes = get_nodes();
- nb_cof_vid_update = 0;
- for (i = 0; i < nodes; i++) {
- if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) {
- nb_cof_vid_update = 1;
- break;
- }
- }
-
- dev = NODE_PCI(nodeid, 3);
- pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1;
- reg1fc = pci_read_config32(dev, 0x1FC);
- nbvid = (reg1fc >> 7) & 0x7F;
- NbVidUpdateAll = (reg1fc >> 1) & 1;
-
- if (nb_cof_vid_update) {
- if (pvimode) {
- nbvid = (reg1fc >> 7) & 0x7F;
- /* write newNbVid to P-state Reg's NbVid if its NbDid=0 */
- fixPsNbVidAfterWR(nbvid, NbVidUpdateAll);
- } else { /* SVI */
- nbvid = ((reg1fc >> 7) & 0x7F) - ((reg1fc >> 17) & 0x1F);
- updateSviPsNbVidAfterWR(nbvid);
- }
- } else { /* !nb_cof_vid_update */
- if (pvimode)
- UpdateSinglePlaneNbVid();
- }
- dtemp = pci_read_config32(dev, 0xA0);
- dtemp &= PLLLOCK_OFF;
- dtemp |= PLLLOCK_DFT_L;
- pci_write_config32(dev, 0xA0, dtemp);
-
- finalPstateChange();
-
- /* Set TSC to tick at the P0 ndfid rate */
- msr = rdmsr(HWCR);
- msr.lo |= 1 << 24;
- wrmsr(HWCR, msr);
-}
-
-
-#if SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1
-struct ap_apicid_st {
- u32 num;
- // it could use 256 bytes for 64 node quad core system
- u8 apicid[NODE_NUMS * 4];
-};
-
-static void store_ap_apicid(unsigned ap_apicid, void *gp)
-{
- struct ap_apicid_st *p = gp;
-
- p->apicid[p->num++] = ap_apicid;
-
-}
-#endif
-
-
-static int init_fidvid_bsp(u32 bsp_apicid, u32 nodes)
-{
-#if SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1
- struct ap_apicid_st ap_apicidx;
- u32 i;
-#endif
- struct fidvid_st fv;
- device_t dev;
- u32 vid_max;
- u32 fid_max=0;
- u8 nb_cof_vid_update;
- u32 reg1fc;
- u8 pvimode;
-
- printk(BIOS_DEBUG, "FIDVID on BSP, APIC_id: %02x\n", bsp_apicid);
- /* FIXME: The first half of this function is nearly the same as
- * init_fidvid_bsp() and the code could be combined.
- */
-
- /* Steps 1-6 of BIOS NB COF and VID Configuration
- * for SVI and Single-Plane PVI Systems.
- */
-
- /* If any node has nb_cof_vid_update set all nodes need an update. */
- nb_cof_vid_update = 0;
- for (i = 0; i < nodes; i++) {
- if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) {
- nb_cof_vid_update = 1;
- break;
- }
- }
-
- dev = NODE_PCI(0, 3);
- pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1;
- reg1fc = pci_read_config32(dev, 0x1FC);
-
- if (nb_cof_vid_update) {
- if (pvimode) {
- vid_max = (reg1fc >> 7) & 0x7F;
- fid_max = (reg1fc >> 2) & 0x1F;
-
- /* write newNbVid to P-state Reg's NbVid always if NbVidUpdatedAll=1 */
- fixPsNbVidBeforeWR(vid_max, 0);
- } else { /* SVI */
- vid_max = ((reg1fc >> 7) & 0x7F) - ((reg1fc >> 17) & 0x1F);
- fid_max = ((reg1fc >> 2) & 0x1F) + ((reg1fc >> 14) & 0x7);
- transitionVid(vid_max, dev, IS_NB);
- }
-
- /* fid setup is handled by the BSP at the end. */
-
- } else { /* ! nb_cof_vid_update */
- /* Use max values */
- if (pvimode)
- UpdateSinglePlaneNbVid();
- }
-
- fv.common_fid = (nb_cof_vid_update << 16) | (fid_max << 8);
- print_debug_fv("BSP fid = ", fv.common_fid);
-
-#if SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1 && SET_FIDVID_CORE0_ONLY == 0
- /* For all APs (We know the APIC ID of all APs even when the APIC ID
- is lifted) remote read from AP LAPIC_MSG_REG about max fid.
- Then calculate the common max fid that can be used for all
- APs and BSP */
- ap_apicidx.num = 0;
-
- for_each_ap(bsp_apicid, SET_FIDVID_CORE_RANGE, store_ap_apicid, &ap_apicidx);
-
- for (i = 0; i < ap_apicidx.num; i++) {
- init_fidvid_bsp_stage1(ap_apicidx.apicid[i], &fv);
- }
-#else
- for_each_ap(bsp_apicid, SET_FIDVID_CORE0_ONLY, init_fidvid_bsp_stage1, &fv);
-#endif
-
- print_debug_fv("common_fid = ", fv.common_fid);
-
- if (fv.common_fid & (1 << 16)) { /* check nb_cof_vid_update */
-
- // Enable the common fid and other settings.
- enable_fid_change((fv.common_fid >> 8) & 0x1F);
-
- // nbfid change need warm reset, so reset at first
- return 1;
- }
-
- return 0; // No FID/VID changes. Don't reset
-}
-#endif
+/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007 Advanced Micro Devices, Inc. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#if SET_FIDVID == 1 +#include <northbridge/amd/amdht/AsPsDefs.h> + +#define SET_FIDVID_DEBUG 1 + +// if we are tight of CAR stack, disable it +#define SET_FIDVID_STORE_AP_APICID_AT_FIRST 1 + +static inline void print_debug_fv(const char *str, u32 val) +{ +#if SET_FIDVID_DEBUG == 1 + printk(BIOS_DEBUG, "%s%x\n", str, val); +#endif +} + +static inline void print_debug_fv_8(const char *str, u8 val) +{ +#if SET_FIDVID_DEBUG == 1 + printk(BIOS_DEBUG, "%s%02x\n", str, val); +#endif +} + +static inline void print_debug_fv_64(const char *str, u32 val, u32 val2) +{ +#if SET_FIDVID_DEBUG == 1 + printk(BIOS_DEBUG, "%s%x%x\n", str, val, val2); +#endif +} + +struct fidvid_st { + u32 common_fid; +}; + +static void enable_fid_change(u8 fid) +{ + u32 dword; + u32 nodes; + device_t dev; + int i; + + nodes = get_nodes(); + + for (i = 0; i < nodes; i++) { + dev = NODE_PCI(i, 3); + dword = pci_read_config32(dev, 0xd4); + dword &= ~0x1F; + dword |= (u32) fid & 0x1F; + dword |= 1 << 5; // enable + pci_write_config32(dev, 0xd4, dword); + printk(BIOS_DEBUG, "FID Change Node:%02x, F3xD4: %08x \n", i, + dword); + } +} + +static void recalculateVsSlamTimeSettingOnCorePre(device_t dev) +{ + u8 pviModeFlag; + u8 highVoltageVid, lowVoltageVid, bValue; + u16 minimumSlamTime; + u16 vSlamTimes[7] = { 1000, 2000, 3000, 4000, 6000, 10000, 20000 }; /* Reg settings scaled by 100 */ + u32 dtemp; + msr_t msr; + + /* This function calculates the VsSlamTime using the range of possible + * voltages instead of a hardcoded 200us. + * Note:This function is called from setFidVidRegs and setUserPs after + * programming a custom Pstate. + */ + + /* Calculate Slam Time + * Vslam = 0.4us/mV * Vp0 - (lowest out of Vpmin or Valt) + * In our case, we will scale the values by 100 to avoid + * decimals. + */ + + /* Determine if this is a PVI or SVI system */ + dtemp = pci_read_config32(dev, 0xA0); + + if (dtemp & PVI_MODE) + pviModeFlag = 1; + else + pviModeFlag = 0; + + /* Get P0's voltage */ + msr = rdmsr(0xC0010064); + highVoltageVid = (u8) ((msr.lo >> PS_CPU_VID_SHFT) & 0x7F); + + /* If SVI, we only care about CPU VID. + * If PVI, determine the higher voltage b/t NB and CPU + */ + if (pviModeFlag) { + bValue = (u8) ((msr.lo >> PS_NB_VID_SHFT) & 0x7F); + if (highVoltageVid > bValue) + highVoltageVid = bValue; + } + + /* Get Pmin's index */ + msr = rdmsr(0xC0010061); + bValue = (u8) ((msr.lo >> PS_CUR_LIM_SHFT) & BIT_MASK_3); + + /* Get Pmin's VID */ + msr = rdmsr(0xC0010064 + bValue); + lowVoltageVid = (u8) ((msr.lo >> PS_CPU_VID_SHFT) & 0x7F); + + /* If SVI, we only care about CPU VID. + * If PVI, determine the higher voltage b/t NB and CPU + */ + if (pviModeFlag) { + bValue = (u8) ((msr.lo >> PS_NB_VID_SHFT) & 0x7F); + if (lowVoltageVid > bValue) + lowVoltageVid = bValue; + } + + /* Get AltVID */ + dtemp = pci_read_config32(dev, 0xDC); + bValue = (u8) (dtemp & BIT_MASK_7); + + /* Use the VID with the lowest voltage (higher VID) */ + if (lowVoltageVid < bValue) + lowVoltageVid = bValue; + + /* If Vids are 7Dh - 7Fh, force 7Ch to keep calculations linear */ + if (lowVoltageVid > 0x7C) { + lowVoltageVid = 0x7C; + if (highVoltageVid > 0x7C) + highVoltageVid = 0x7C; + } + + bValue = (u8) (lowVoltageVid - highVoltageVid); + + /* Each Vid increment is 12.5 mV. The minimum slam time is: + * vidCodeDelta * 12.5mV * 0.4us/mV + * Scale by 100 to avoid decimals. + */ + minimumSlamTime = bValue * (125 * 4); + + /* Now round up to nearest register setting. + * Note that if we don't find a value, we + * will fall through to a value of 7 + */ + for (bValue = 0; bValue < 7; bValue++) { + if (minimumSlamTime <= vSlamTimes[bValue]) + break; + } + + /* Apply the value */ + dtemp = pci_read_config32(dev, 0xD8); + dtemp &= VSSLAM_MASK; + dtemp |= bValue; + pci_write_config32(dev, 0xd8, dtemp); +} + +static void prep_fid_change(void) +{ + u32 dword, dtemp; + u32 nodes; + device_t dev; + int i; + + /* This needs to be run before any Pstate changes are requested */ + + nodes = get_nodes(); + + for (i = 0; i < nodes; i++) { + printk(BIOS_DEBUG, "Prep FID/VID Node:%02x \n", i); + dev = NODE_PCI(i, 3); + + dword = pci_read_config32(dev, 0xd8); + dword &= VSRAMP_MASK; + dword |= VSRAMP_VALUE; + pci_write_config32(dev, 0xd8, dword); + + /* Figure out the value for VsSlamTime and program it */ + recalculateVsSlamTimeSettingOnCorePre(dev); + + /* Program fields in Clock Power/Control register0 (F3xD4) */ + /* set F3xD4 Clock Power/Timing Control 0 Register + * NbClkDidApplyAll=1b + * NbClkDid=100b + * PowerStepUp= "platform dependent" + * PowerStepDown= "platform dependent" + * LinkPllLink=01b + * ClkRampHystSel=HW default + */ + /* check platform type */ + if (!(get_platform_type() & AMD_PTYPE_SVR)) { + /* For non-server platform + * PowerStepUp=01000b - 50nS + * PowerStepDown=01000b - 50ns + */ + dword = pci_read_config32(dev, 0xd4); + dword &= CPTC0_MASK; + dword |= NB_CLKDID_ALL | NB_CLKDID | PW_STP_UP50 | PW_STP_DN50 | LNK_PLL_LOCK; /* per BKDG */ + pci_write_config32(dev, 0xd4, dword); + } else { + dword = pci_read_config32(dev, 0xd4); + dword &= CPTC0_MASK; + /* get number of cores for PowerStepUp & PowerStepDown in server + 1 core - 400nS - 0000b + 2 cores - 200nS - 0010b + 3 cores - 133nS -> 100nS - 0011b + 4 cores - 100nS - 0011b + */ + switch (get_core_num_in_bsp(i)) { + case 0: + dword |= PW_STP_UP400 | PW_STP_DN400; + break; + case 1: + case 2: + dword |= PW_STP_UP200 | PW_STP_DN200; + break; + case 3: + dword |= PW_STP_UP100 | PW_STP_DN100; + break; + default: + dword |= PW_STP_UP100 | PW_STP_DN100; + break; + } + dword |= NB_CLKDID_ALL | NB_CLKDID | LNK_PLL_LOCK; + pci_write_config32(dev, 0xd4, dword); + } + + /* check PVI/SVI */ + dword = pci_read_config32(dev, 0xA0); + if (dword & PVI_MODE) { /* PVI */ + /* set slamVidMode to 0 for PVI */ + dword &= VID_SLAM_OFF | PLLLOCK_OFF; + dword |= PLLLOCK_DFT_L; + pci_write_config32(dev, 0xA0, dword); + } else { /* SVI */ + /* set slamVidMode to 1 for SVI */ + dword &= PLLLOCK_OFF; + dword |= PLLLOCK_DFT_L | VID_SLAM_ON; + pci_write_config32(dev, 0xA0, dword); + + dtemp = dword; + + /* Program F3xD8[PwrPlanes] according F3xA0[DulaVdd] */ + dword = pci_read_config32(dev, 0xD8); + + if (dtemp & DUAL_VDD_BIT) + dword |= PWR_PLN_ON; + else + dword &= PWR_PLN_OFF; + pci_write_config32(dev, 0xD8, dword); + } + + /* Note the following settings are additional from the ported + * function setFidVidRegs() + */ + dword = pci_read_config32(dev, 0xDc); + dword |= 0x5 << 12; /* NbsynPtrAdj set to 0x5 per BKDG (needs reset) */ + pci_write_config32(dev, 0xdc, dword); + + /* Rev B settings - FIXME: support other revs. */ + dword = 0xA0E641E6; + pci_write_config32(dev, 0x84, dword); + + dword = 0xE600A681; + pci_write_config32(dev, 0x80, dword); + + dword = pci_read_config32(dev, 0x80); + printk(BIOS_DEBUG, " F3x80: %08x \n", dword); + dword = pci_read_config32(dev, 0x84); + printk(BIOS_DEBUG, " F3x84: %08x \n", dword); + dword = pci_read_config32(dev, 0xD4); + printk(BIOS_DEBUG, " F3xD4: %08x \n", dword); + dword = pci_read_config32(dev, 0xD8); + printk(BIOS_DEBUG, " F3xD8: %08x \n", dword); + dword = pci_read_config32(dev, 0xDC); + printk(BIOS_DEBUG, " F3xDC: %08x \n", dword); + + + } +} + + +static void UpdateSinglePlaneNbVid(void) +{ + u32 nbVid, cpuVid; + u8 i; + msr_t msr; + + /* copy higher voltage (lower VID) of NBVID & CPUVID to both */ + for (i = 0; i < 5; i++) { + msr = rdmsr(PS_REG_BASE + i); + nbVid = (msr.lo & PS_CPU_VID_M_ON) >> PS_CPU_VID_SHFT; + cpuVid = (msr.lo & PS_NB_VID_M_ON) >> PS_NB_VID_SHFT; + + if (nbVid != cpuVid) { + if (nbVid > cpuVid) + nbVid = cpuVid; + + msr.lo = msr.lo & PS_BOTH_VID_OFF; + msr.lo = msr.lo | (u32) ((nbVid) << PS_NB_VID_SHFT); + msr.lo = msr.lo | (u32) ((nbVid) << PS_CPU_VID_SHFT); + wrmsr(PS_REG_BASE + i, msr); + } + } +} + +static void fixPsNbVidBeforeWR(u32 newNbVid, u32 coreid) +{ + msr_t msr; + u8 startup_pstate; + + /* This function sets NbVid before the warm reset. + * Get StartupPstate from MSRC001_0071. + * Read Pstate register pionted by [StartupPstate]. + * and copy its content to P0 and P1 registers. + * Copy newNbVid to P0[NbVid]. + * transition to P1 on all cores, + * then transition to P0 on core 0. + * Wait for MSRC001_0063[CurPstate] = 000b on core 0. + */ + + msr = rdmsr(0xc0010071); + startup_pstate = (msr.hi >> (32 - 32)) & 0x07; + + /* Copy startup pstate to P1 and P0 MSRs. Set the maxvid for this node in P0. + * Then transition to P1 for corex and P0 for core0. + * These setting will be cleared by the warm reset + */ + msr = rdmsr(0xC0010064 + startup_pstate); + wrmsr(0xC0010065, msr); + wrmsr(0xC0010064, msr); + + msr.lo &= ~0xFE000000; // clear nbvid + msr.lo |= newNbVid << 25; + wrmsr(0xC0010064, msr); + + UpdateSinglePlaneNbVid(); + + // Transition to P1 for all APs and P0 for core0. + msr = rdmsr(0xC0010062); + msr.lo = (msr.lo & ~0x07) | 1; + wrmsr(0xC0010062, msr); + + // Wait for P1 to set. + do { + msr = rdmsr(0xC0010063); + } while (msr.lo != 1); + + if (coreid == 0) { + msr.lo = msr.lo & ~0x07; + wrmsr(0xC0010062, msr); + // Wait for P0 to set. + do { + msr = rdmsr(0xC0010063); + } while (msr.lo != 0); + } +} + +static void coreDelay(void) +{ + u32 saved; + u32 hi, lo, msr; + u32 cycles; + + /* delay ~40us + This seems like a hack to me... + It would be nice to have a central delay function. */ + + cycles = 8000 << 3; /* x8 (number of 1.25ns ticks) */ + + msr = 0x10; /* TSC */ + _RDMSR(msr, &lo, &hi); + saved = lo; + do { + _RDMSR(msr, &lo, &hi); + } while (lo - saved < cycles); +} + +static void transitionVid(u32 targetVid, u8 dev, u8 isNb) +{ + u32 currentVid, dtemp; + msr_t msr; + u8 vsTimecode; + u16 timeTable[8] = { 10, 20, 30, 40, 60, 100, 200, 500 }; + int vsTime; + + /* This function steps or slam the Nb VID to the target VID. + * It uses VSRampTime for [SlamVidMode]=0 ([PviMode]=1) + * or VSSlamTime for [SlamVidMode]=1 ([PviMode]=0)to time period. + */ + + /* get the current VID */ + msr = rdmsr(0xC0010071); + if (isNb) + currentVid = (msr.lo >> NB_VID_POS) & BIT_MASK_7; + else + currentVid = (msr.lo >> CPU_VID_POS) & BIT_MASK_7; + + /* Read MSRC001_0070 COFVID Control Register */ + msr = rdmsr(0xC0010070); + + /* check PVI/SPI */ + dtemp = pci_read_config32(dev, 0xA0); + if (dtemp & PVI_MODE) { /* PVI, step VID */ + if (currentVid < targetVid) { + while (currentVid < targetVid) { + currentVid++; + if (isNb) + msr.lo = (msr.lo & NB_VID_MASK_OFF) | (currentVid << NB_VID_POS); + else + msr.lo = (msr.lo & CPU_VID_MASK_OFF) | (currentVid << CPU_VID_POS); + wrmsr(0xC0010070, msr); + + /* read F3xD8[VSRampTime] */ + dtemp = pci_read_config32(dev, 0xD8); + vsTimecode = (u8) ((dtemp >> VS_RAMP_T) & 0x7); + vsTime = (int)timeTable[vsTimecode]; + do { + coreDelay(); + vsTime -= 40; + } while (vsTime > 0); + } + } else if (currentVid > targetVid) { + while (currentVid > targetVid) { + currentVid--; + if (isNb) + msr.lo = (msr.lo & NB_VID_MASK_OFF) | (currentVid << NB_VID_POS); + else + msr.lo = (msr.lo & CPU_VID_MASK_OFF) | (currentVid << CPU_VID_POS); + wrmsr(0xC0010070, msr); + + /* read F3xD8[VSRampTime] */ + dtemp = pci_read_config32(dev, 0xD8); + vsTimecode = (u8) ((dtemp >> VS_RAMP_T) & 0x7); + vsTime = (int)timeTable[vsTimecode]; + do { + coreDelay(); + vsTime -= 40; + } while (vsTime > 0); + } + } + } else { /* SVI, slam VID */ + if (isNb) + msr.lo = (msr.lo & NB_VID_MASK_OFF) | (targetVid << NB_VID_POS); + else + msr.lo = (msr.lo & CPU_VID_MASK_OFF) | (targetVid << CPU_VID_POS); + wrmsr(0xC0010070, msr); + + /* read F3xD8[VSRampTime] */ + dtemp = pci_read_config32(dev, 0xD8); + vsTimecode = (u8) ((dtemp >> VS_RAMP_T) & 0x7); + vsTime = (int)timeTable[vsTimecode]; + do { + coreDelay(); + vsTime -= 40; + } while (vsTime > 0); + } +} + + +static void init_fidvid_ap(u32 bsp_apicid, u32 apicid, u32 nodeid, u32 coreid) +{ + device_t dev; + u32 vid_max; + u32 fid_max; + u8 nb_cof_vid_update; + u8 pvimode; + u32 reg1fc; + u32 send; + u8 nodes; + u8 i; + + printk(BIOS_DEBUG, "FIDVID on AP: %02x\n", apicid); + + /* Steps 1-6 of BIOS NB COF and VID Configuration + * for SVI and Single-Plane PVI Systems. + */ + + /* If any node has nb_cof_vid_update set all nodes need an update. */ + nodes = get_nodes(); + nb_cof_vid_update = 0; + for (i = 0; i < nodes; i++) { + if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) { + nb_cof_vid_update = 1; + break; + } + } + + dev = NODE_PCI(nodeid, 3); + pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1; + reg1fc = pci_read_config32(dev, 0x1FC); + + if (nb_cof_vid_update) { + if (pvimode) { + vid_max = (reg1fc >> 7) & 0x7F; + fid_max = (reg1fc >> 2) & 0x1F; + + /* write newNbVid to P-state Reg's NbVid always if NbVidUpdatedAll=1 */ + fixPsNbVidBeforeWR(vid_max, coreid); + } else { /* SVI */ + vid_max = ((reg1fc >> 7) & 0x7F) - ((reg1fc >> 17) & 0x1F); + fid_max = ((reg1fc >> 2) & 0x1F) + ((reg1fc >> 14) & 0x7); + transitionVid(vid_max, dev, IS_NB); + } + + /* fid setup is handled by the BSP at the end. */ + + } else { /* ! nb_cof_vid_update */ + /* Use max values */ + if (pvimode) + UpdateSinglePlaneNbVid(); + } + + send = (nb_cof_vid_update << 16) | (fid_max << 8); + send |= (apicid << 24); // ap apicid + + // Send signal to BSP about this AP max fid + // This also indicates this AP is ready for warm reset (if required). + lapic_write(LAPIC_MSG_REG, send | F10_APSTATE_RESET); +} + +static u32 calc_common_fid(u32 fid_packed, u32 fid_packed_new) +{ + u32 fidmax; + u32 fidmax_new; + + fidmax = (fid_packed >> 8) & 0xFF; + + fidmax_new = (fid_packed_new >> 8) & 0xFF; + + if (fidmax > fidmax_new) { + fidmax = fidmax_new; + } + + fid_packed &= 0xFF << 16; + fid_packed |= (fidmax << 8); + fid_packed |= fid_packed_new & (0xFF << 16); // set nb_cof_vid_update + + return fid_packed; +} + +static void init_fidvid_bsp_stage1(u32 ap_apicid, void *gp) +{ + u32 readback = 0; + u32 timeout = 1; + + struct fidvid_st *fvp = gp; + int loop; + + print_debug_fv("Wait for AP stage 1: ap_apicid = ", ap_apicid); + + loop = 100000; + while (--loop > 0) { + if (lapic_remote_read(ap_apicid, LAPIC_MSG_REG, &readback) != 0) + continue; + if ((readback & 0x3f) == 1) { + timeout = 0; + break; /* target ap is in stage 1 */ + } + } + + if (timeout) { + printk(BIOS_DEBUG, "%s: timed out reading from ap %02x\n", + __func__, ap_apicid); + return; + } + + print_debug_fv("\treadback = ", readback); + + fvp->common_fid = calc_common_fid(fvp->common_fid, readback); + + print_debug_fv("\tcommon_fid(packed) = ", fvp->common_fid); + +} + +static void updateSviPsNbVidAfterWR(u32 newNbVid) +{ + msr_t msr; + u8 i; + + /* This function copies newNbVid to NbVid bits in P-state Registers[4:0] + * for SVI mode. + */ + + for (i = 0; i < 5; i++) { + msr = rdmsr(0xC0010064 + i); + if ((msr.hi >> 31) & 1) { /* PstateEn? */ + msr.lo &= ~(0x7F << 25); + msr.lo |= (newNbVid & 0x7F) << 25; + wrmsr(0xC0010064 + i, msr); + } + } +} + + +static void fixPsNbVidAfterWR(u32 newNbVid, u8 NbVidUpdatedAll) +{ + msr_t msr; + u8 i; + u8 StartupPstate; + + /* This function copies newNbVid to NbVid bits in P-state + * Registers[4:0] if its NbDid bit=0 and PstateEn bit =1 in case of + * NbVidUpdatedAll =0 or copies copies newNbVid to NbVid bits in + * P-state Registers[4:0] if its and PstateEn bit =1 in case of + * NbVidUpdatedAll=1. Then transition to StartPstate. + */ + + /* write newNbVid to P-state Reg's NbVid if its NbDid=0 */ + for (i = 0; i < 5; i++) { + msr = rdmsr(0xC0010064 + i); + /* NbDid (bit 22 of P-state Reg) == 0 or NbVidUpdatedAll = 1 */ + if ((((msr.lo >> 22) & 1) == 0) || NbVidUpdatedAll) { + msr.lo &= ~(0x7F << 25); + msr.lo |= (newNbVid & 0x7F) << 25; + wrmsr(0xC0010064 + i, msr); + } + } + + UpdateSinglePlaneNbVid(); + + /* For each core in the system, transition all cores to StartupPstate */ + msr = rdmsr(0xC0010071); + StartupPstate = msr.hi & 0x07; + msr = rdmsr(0xC0010062); + msr.lo = StartupPstate; + wrmsr(0xC0010062, msr); + + /* Wait for StartupPstate to set. */ + do { + msr = rdmsr(0xC0010063); + } while (msr.lo != StartupPstate); +} + +static void set_p0(void) +{ + msr_t msr; + + // Transition P0 for calling core. + msr = rdmsr(0xC0010062); + msr.lo = (msr.lo & ~0x07); + wrmsr(0xC0010062, msr); + + /* Wait for P0 to set. */ + do { + msr = rdmsr(0xC0010063); + } while (msr.lo != 0); +} + +static void finalPstateChange(void) +{ + /* Enble P0 on all cores for best performance. + * Linux can slow them down later if need be. + * It is safe since they will be in C1 halt + * most of the time anyway. + */ + set_p0(); +} + +static void init_fidvid_stage2(u32 apicid, u32 nodeid) +{ + msr_t msr; + device_t dev; + u32 reg1fc; + u32 dtemp; + u32 nbvid; + u8 nb_cof_vid_update; + u8 nodes; + u8 NbVidUpdateAll; + u8 i; + u8 pvimode; + + /* After warm reset finish the fid/vid setup for all cores. */ + + /* If any node has nb_cof_vid_update set all nodes need an update. */ + nodes = get_nodes(); + nb_cof_vid_update = 0; + for (i = 0; i < nodes; i++) { + if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) { + nb_cof_vid_update = 1; + break; + } + } + + dev = NODE_PCI(nodeid, 3); + pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1; + reg1fc = pci_read_config32(dev, 0x1FC); + nbvid = (reg1fc >> 7) & 0x7F; + NbVidUpdateAll = (reg1fc >> 1) & 1; + + if (nb_cof_vid_update) { + if (pvimode) { + nbvid = (reg1fc >> 7) & 0x7F; + /* write newNbVid to P-state Reg's NbVid if its NbDid=0 */ + fixPsNbVidAfterWR(nbvid, NbVidUpdateAll); + } else { /* SVI */ + nbvid = ((reg1fc >> 7) & 0x7F) - ((reg1fc >> 17) & 0x1F); + updateSviPsNbVidAfterWR(nbvid); + } + } else { /* !nb_cof_vid_update */ + if (pvimode) + UpdateSinglePlaneNbVid(); + } + dtemp = pci_read_config32(dev, 0xA0); + dtemp &= PLLLOCK_OFF; + dtemp |= PLLLOCK_DFT_L; + pci_write_config32(dev, 0xA0, dtemp); + + finalPstateChange(); + + /* Set TSC to tick at the P0 ndfid rate */ + msr = rdmsr(HWCR); + msr.lo |= 1 << 24; + wrmsr(HWCR, msr); +} + + +#if SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1 +struct ap_apicid_st { + u32 num; + // it could use 256 bytes for 64 node quad core system + u8 apicid[NODE_NUMS * 4]; +}; + +static void store_ap_apicid(unsigned ap_apicid, void *gp) +{ + struct ap_apicid_st *p = gp; + + p->apicid[p->num++] = ap_apicid; + +} +#endif + + +static int init_fidvid_bsp(u32 bsp_apicid, u32 nodes) +{ +#if SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1 + struct ap_apicid_st ap_apicidx; + u32 i; +#endif + struct fidvid_st fv; + device_t dev; + u32 vid_max; + u32 fid_max=0; + u8 nb_cof_vid_update; + u32 reg1fc; + u8 pvimode; + + printk(BIOS_DEBUG, "FIDVID on BSP, APIC_id: %02x\n", bsp_apicid); + /* FIXME: The first half of this function is nearly the same as + * init_fidvid_bsp() and the code could be combined. + */ + + /* Steps 1-6 of BIOS NB COF and VID Configuration + * for SVI and Single-Plane PVI Systems. + */ + + /* If any node has nb_cof_vid_update set all nodes need an update. */ + nb_cof_vid_update = 0; + for (i = 0; i < nodes; i++) { + if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) { + nb_cof_vid_update = 1; + break; + } + } + + dev = NODE_PCI(0, 3); + pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1; + reg1fc = pci_read_config32(dev, 0x1FC); + + if (nb_cof_vid_update) { + if (pvimode) { + vid_max = (reg1fc >> 7) & 0x7F; + fid_max = (reg1fc >> 2) & 0x1F; + + /* write newNbVid to P-state Reg's NbVid always if NbVidUpdatedAll=1 */ + fixPsNbVidBeforeWR(vid_max, 0); + } else { /* SVI */ + vid_max = ((reg1fc >> 7) & 0x7F) - ((reg1fc >> 17) & 0x1F); + fid_max = ((reg1fc >> 2) & 0x1F) + ((reg1fc >> 14) & 0x7); + transitionVid(vid_max, dev, IS_NB); + } + + /* fid setup is handled by the BSP at the end. */ + + } else { /* ! nb_cof_vid_update */ + /* Use max values */ + if (pvimode) + UpdateSinglePlaneNbVid(); + } + + fv.common_fid = (nb_cof_vid_update << 16) | (fid_max << 8); + print_debug_fv("BSP fid = ", fv.common_fid); + +#if SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1 && SET_FIDVID_CORE0_ONLY == 0 + /* For all APs (We know the APIC ID of all APs even when the APIC ID + is lifted) remote read from AP LAPIC_MSG_REG about max fid. + Then calculate the common max fid that can be used for all + APs and BSP */ + ap_apicidx.num = 0; + + for_each_ap(bsp_apicid, SET_FIDVID_CORE_RANGE, store_ap_apicid, &ap_apicidx); + + for (i = 0; i < ap_apicidx.num; i++) { + init_fidvid_bsp_stage1(ap_apicidx.apicid[i], &fv); + } +#else + for_each_ap(bsp_apicid, SET_FIDVID_CORE0_ONLY, init_fidvid_bsp_stage1, &fv); +#endif + + print_debug_fv("common_fid = ", fv.common_fid); + + if (fv.common_fid & (1 << 16)) { /* check nb_cof_vid_update */ + + // Enable the common fid and other settings. + enable_fid_change((fv.common_fid >> 8) & 0x1F); + + // nbfid change need warm reset, so reset at first + return 1; + } + + return 0; // No FID/VID changes. Don't reset +} +#endif diff --git a/src/cpu/amd/model_10xxx/init_cpus.c b/src/cpu/amd/model_10xxx/init_cpus.c index 9207c2e0ba..b20446f7e2 100644 --- a/src/cpu/amd/model_10xxx/init_cpus.c +++ b/src/cpu/amd/model_10xxx/init_cpus.c @@ -1,945 +1,945 @@ -/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "defaults.h"
-#include <stdlib.h>
-#include <cpu/x86/lapic.h>
-#include <cpu/x86/mtrr.h>
-#include <northbridge/amd/amdfam10/amdfam10.h>
-#include <northbridge/amd/amdht/AsPsDefs.h>
-#include <northbridge/amd/amdht/porting.h>
-
-#include <cpu/x86/mtrr/earlymtrr.c>
-#include <northbridge/amd/amdfam10/raminit_amdmct.c>
-
-//it takes the CONFIG_ENABLE_APIC_EXT_ID and CONFIG_APIC_ID_OFFSET and CONFIG_LIFT_BSP_APIC_ID
-#ifndef SET_FIDVID
- #define SET_FIDVID 1
-#endif
-
-#ifndef SET_FIDVID_CORE0_ONLY
- /* MSR FIDVID_CTL and FIDVID_STATUS are shared by cores,
- Need to do every AP to set common FID/VID */
- #define SET_FIDVID_CORE0_ONLY 0
-#endif
-
-static void prep_fid_change(void);
-static void init_fidvid_stage2(u32 apicid, u32 nodeid);
-void cpuSetAMDMSR(void);
-
-#if CONFIG_PCI_IO_CFG_EXT == 1
-static void set_EnableCf8ExtCfg(void)
-{
- // set the NB_CFG[46]=1;
- msr_t msr;
- msr = rdmsr(NB_CFG_MSR);
- // EnableCf8ExtCfg: We need that to access CONFIG_PCI_IO_CFG_EXT 4K range
- msr.hi |= (1 << (46 - 32));
- wrmsr(NB_CFG_MSR, msr);
-}
-#else
-static void set_EnableCf8ExtCfg(void) { }
-#endif
-
-
-typedef void (*process_ap_t) (u32 apicid, void *gp);
-
-//core_range = 0 : all cores
-//core range = 1 : core 0 only
-//core range = 2 : cores other than core0
-
-static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap,
- void *gp)
-{
- // here assume the OS don't change our apicid
- u32 ap_apicid;
-
- u32 nodes;
- u32 siblings;
- u32 disable_siblings;
- u32 cores_found;
- u32 nb_cfg_54;
- int i, j;
- u32 ApicIdCoreIdSize;
-
- /* get_nodes define in ht_wrapper.c */
- nodes = get_nodes();
-
- if (!CONFIG_LOGICAL_CPUS ||
- read_option(CMOS_VSTART_multi_core, CMOS_VLEN_multi_core, 0) != 0) { // 0 means multi core
- disable_siblings = 1;
- } else {
- disable_siblings = 0;
- }
-
- /* Assume that all node are same stepping, otherwise we can use use
- nb_cfg_54 from bsp for all nodes */
- nb_cfg_54 = read_nb_cfg_54();
-
- ApicIdCoreIdSize = (cpuid_ecx(0x80000008) >> 12 & 0xf);
- if (ApicIdCoreIdSize) {
- siblings = ((1 << ApicIdCoreIdSize) - 1);
- } else {
- siblings = 3; //quad core
- }
-
- for (i = 0; i < nodes; i++) {
- cores_found = get_core_num_in_bsp(i);
-
- u32 jstart, jend;
-
- if (core_range == 2) {
- jstart = 1;
- } else {
- jstart = 0;
- }
-
- if (disable_siblings || (core_range == 1)) {
- jend = 0;
- } else {
- jend = cores_found;
- }
-
- for (j = jstart; j <= jend; j++) {
- ap_apicid =
- i * (nb_cfg_54 ? (siblings + 1) : 1) +
- j * (nb_cfg_54 ? 1 : 64);
-
-#if (CONFIG_ENABLE_APIC_EXT_ID == 1) && (CONFIG_APIC_ID_OFFSET > 0)
-#if CONFIG_LIFT_BSP_APIC_ID == 0
- if ((i != 0) || (j != 0)) /* except bsp */
-#endif
- ap_apicid += CONFIG_APIC_ID_OFFSET;
-#endif
-
- if (ap_apicid == bsp_apicid)
- continue;
-
- process_ap(ap_apicid, gp);
-
- }
- }
-}
-
-static inline int lapic_remote_read(int apicid, int reg, u32 *pvalue)
-{
- int timeout;
- u32 status;
- int result;
- lapic_wait_icr_idle();
- lapic_write(LAPIC_ICR2, SET_LAPIC_DEST_FIELD(apicid));
- lapic_write(LAPIC_ICR, LAPIC_DM_REMRD | (reg >> 4));
-
-/* Extra busy check compared to lapic.h */
- timeout = 0;
- do {
- status = lapic_read(LAPIC_ICR) & LAPIC_ICR_BUSY;
- } while (status == LAPIC_ICR_BUSY && timeout++ < 1000);
-
- timeout = 0;
- do {
- status = lapic_read(LAPIC_ICR) & LAPIC_ICR_RR_MASK;
- } while (status == LAPIC_ICR_RR_INPROG && timeout++ < 1000);
-
- result = -1;
-
- if (status == LAPIC_ICR_RR_VALID) {
- *pvalue = lapic_read(LAPIC_RRR);
- result = 0;
- }
- return result;
-}
-
-#if SET_FIDVID == 1
-static void init_fidvid_ap(u32 bsp_apicid, u32 apicid, u32 nodeid, u32 coreid);
-#endif
-
-static inline __attribute__ ((always_inline))
-void print_apicid_nodeid_coreid(u32 apicid, struct node_core_id id,
- const char *str)
-{
- printk(BIOS_DEBUG,
- "%s --- { APICID = %02x NODEID = %02x COREID = %02x} ---\n", str,
- apicid, id.nodeid, id.coreid);
-}
-
-static u32 wait_cpu_state(u32 apicid, u32 state)
-{
- u32 readback = 0;
- u32 timeout = 1;
- int loop = 4000000;
- while (--loop > 0) {
- if (lapic_remote_read(apicid, LAPIC_MSG_REG, &readback) != 0)
- continue;
- if ((readback & 0x3f) == state || (readback & 0x3f) == F10_APSTATE_RESET) {
- timeout = 0;
- break; //target cpu is in stage started
- }
- }
- if (timeout) {
- if (readback) {
- timeout = readback;
- }
- }
-
- return timeout;
-}
-
-static void wait_ap_started(u32 ap_apicid, void *gp)
-{
- u32 timeout;
- timeout = wait_cpu_state(ap_apicid, F10_APSTATE_STARTED);
- printk(BIOS_DEBUG, "* AP %02x", ap_apicid);
- if (timeout) {
- printk(BIOS_DEBUG, " timed out:%08x\n", timeout);
- } else {
- printk(BIOS_DEBUG, "started\n");
- }
-}
-
-void wait_all_other_cores_started(u32 bsp_apicid)
-{
- // all aps other than core0
- printk(BIOS_DEBUG, "started ap apicid: ");
- for_each_ap(bsp_apicid, 2, wait_ap_started, (void *)0);
- printk(BIOS_DEBUG, "\n");
-}
-
-void allow_all_aps_stop(u32 bsp_apicid)
-{
- /* Called by the BSP to indicate AP can stop */
-
- /* FIXME Do APs use this? */
-
- // allow aps to stop use 6 bits for state
- lapic_write(LAPIC_MSG_REG, (bsp_apicid << 24) | F10_APSTATE_STOPPED);
-}
-
-static void enable_apic_ext_id(u32 node)
-{
- u32 val;
-
- val = pci_read_config32(NODE_HT(node), 0x68);
- val |= (HTTC_APIC_EXT_SPUR | HTTC_APIC_EXT_ID | HTTC_APIC_EXT_BRD_CST);
- pci_write_config32(NODE_HT(node), 0x68, val);
-}
-
-static void STOP_CAR_AND_CPU(void)
-{
- msr_t msr;
-
- /* Disable L2 IC to L3 connection (Only for CAR) */
- msr = rdmsr(BU_CFG2);
- msr.lo &= ~(1 << ClLinesToNbDis);
- wrmsr(BU_CFG2, msr);
-
- disable_cache_as_ram(); // inline
- /* stop all cores except node0/core0 the bsp .... */
- stop_this_cpu();
-}
-
-#if CONFIG_RAMINIT_SYSINFO
-static u32 init_cpus(u32 cpu_init_detectedx, struct sys_info *sysinfo)
-#else
-static u32 init_cpus(u32 cpu_init_detectedx)
-#endif
-{
- u32 bsp_apicid = 0;
- u32 apicid;
- struct node_core_id id;
-
- /*
- * already set early mtrr in cache_as_ram.inc
- */
-
- /* that is from initial apicid, we need nodeid and coreid
- later */
- id = get_node_core_id_x();
-
- /* NB_CFG MSR is shared between cores, so we need make sure
- core0 is done at first --- use wait_all_core0_started */
- if (id.coreid == 0) {
- set_apicid_cpuid_lo(); /* only set it on core0 */
- set_EnableCf8ExtCfg(); /* only set it on core0 */
-#if (CONFIG_ENABLE_APIC_EXT_ID == 1)
- enable_apic_ext_id(id.nodeid);
-#endif
- }
-
- enable_lapic();
-
-#if (CONFIG_ENABLE_APIC_EXT_ID == 1) && (CONFIG_APIC_ID_OFFSET > 0)
- u32 initial_apicid = get_initial_apicid();
-
-#if CONFIG_LIFT_BSP_APIC_ID == 0
- if (initial_apicid != 0) // other than bsp
-#endif
- {
- /* use initial apic id to lift it */
- u32 dword = lapic_read(LAPIC_ID);
- dword &= ~(0xff << 24);
- dword |=
- (((initial_apicid + CONFIG_APIC_ID_OFFSET) & 0xff) << 24);
-
- lapic_write(LAPIC_ID, dword);
- }
-#if CONFIG_LIFT_BSP_APIC_ID == 1
- bsp_apicid += CONFIG_APIC_ID_OFFSET;
-#endif
-
-#endif
-
- /* get the apicid, it may be lifted already */
- apicid = lapicid();
-
- // show our apicid, nodeid, and coreid
- if (id.coreid == 0) {
- if (id.nodeid != 0) //all core0 except bsp
- print_apicid_nodeid_coreid(apicid, id, " core0: ");
- } else { //all other cores
- print_apicid_nodeid_coreid(apicid, id, " corex: ");
- }
-
- if (cpu_init_detectedx) {
- print_apicid_nodeid_coreid(apicid, id,
- "\n\n\nINIT detected from ");
- printk(BIOS_DEBUG, "\nIssuing SOFT_RESET...\n");
- soft_reset();
- }
-
- if (id.coreid == 0) {
- if (!(warm_reset_detect(id.nodeid))) //FIXME: INIT is checked above but check for more resets?
- distinguish_cpu_resets(id.nodeid); // Also indicates we are started
- }
- // Mark the core as started.
- lapic_write(LAPIC_MSG_REG, (apicid << 24) | F10_APSTATE_STARTED);
-
- if (apicid != bsp_apicid) {
- /* Setup each AP's cores MSRs.
- * This happens after HTinit.
- * The BSP runs this code in it's own path.
- */
- update_microcode(cpuid_eax(1));
- cpuSetAMDMSR();
-
-#if SET_FIDVID == 1
-#if (CONFIG_LOGICAL_CPUS == 1) && (SET_FIDVID_CORE0_ONLY == 1)
- // Run on all AP for proper FID/VID setup.
- if (id.coreid == 0) // only need set fid for core0
-#endif
- {
- // check warm(bios) reset to call stage2 otherwise do stage1
- if (warm_reset_detect(id.nodeid)) {
- printk(BIOS_DEBUG,
- "init_fidvid_stage2 apicid: %02x\n",
- apicid);
- init_fidvid_stage2(apicid, id.nodeid);
- } else {
- printk(BIOS_DEBUG,
- "init_fidvid_ap(stage1) apicid: %02x\n",
- apicid);
- init_fidvid_ap(bsp_apicid, apicid, id.nodeid,
- id.coreid);
- }
- }
-#endif
-
- /* AP is ready, configure MTRRs and go to sleep */
- set_var_mtrr(0, 0x00000000, CONFIG_RAMTOP, MTRR_TYPE_WRBACK);
-
- STOP_CAR_AND_CPU();
-
- printk(BIOS_DEBUG,
- "\nAP %02x should be halted but you are reading this....\n",
- apicid);
- }
-
- return bsp_apicid;
-}
-
-static u32 is_core0_started(u32 nodeid)
-{
- u32 htic;
- device_t device;
- device = NODE_PCI(nodeid, 0);
- htic = pci_read_config32(device, HT_INIT_CONTROL);
- htic &= HTIC_ColdR_Detect;
- return htic;
-}
-
-void wait_all_core0_started(void)
-{
- /* When core0 is started, it will distingush_cpu_resets
- * So wait for that to finish */
- u32 i;
- u32 nodes = get_nodes();
-
- printk(BIOS_DEBUG, "core0 started: ");
- for (i = 1; i < nodes; i++) { // skip bsp, because it is running on bsp
- while (!is_core0_started(i)) {
- }
- printk(BIOS_DEBUG, " %02x", i);
- }
- printk(BIOS_DEBUG, "\n");
-}
-
-#if CONFIG_MAX_PHYSICAL_CPUS > 1
-/**
- * void start_node(u32 node)
- *
- * start the core0 in node, so it can generate HT packet to feature code.
- *
- * This function starts the AP nodes core0s. wait_all_core0_started() in
- * romstage.c waits for all the AP to be finished before continuing
- * system init.
- */
-static void start_node(u8 node)
-{
- u32 val;
-
- /* Enable routing table */
- printk(BIOS_DEBUG, "Start node %02x", node);
-
-#if CONFIG_NORTHBRIDGE_AMD_AMDFAM10
- /* For FAM10 support, we need to set Dram base/limit for the new node */
- pci_write_config32(NODE_MP(node), 0x44, 0);
- pci_write_config32(NODE_MP(node), 0x40, 3);
-#endif
-
- /* Allow APs to make requests (ROM fetch) */
- val = pci_read_config32(NODE_HT(node), 0x6c);
- val &= ~(1 << 1);
- pci_write_config32(NODE_HT(node), 0x6c, val);
-
- printk(BIOS_DEBUG, " done.\n");
-}
-
-/**
- * static void setup_remote_node(u32 node)
- *
- * Copy the BSP Adress Map to each AP.
- */
-static void setup_remote_node(u8 node)
-{
- /* There registers can be used with F1x114_x Address Map at the
- same time, So must set them even 32 node */
- static const u16 pci_reg[] = {
- /* DRAM Base/Limits Registers */
- 0x44, 0x4c, 0x54, 0x5c, 0x64, 0x6c, 0x74, 0x7c,
- 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78,
- 0x144, 0x14c, 0x154, 0x15c, 0x164, 0x16c, 0x174, 0x17c,
- 0x140, 0x148, 0x150, 0x158, 0x160, 0x168, 0x170, 0x178,
- /* MMIO Base/Limits Registers */
- 0x84, 0x8c, 0x94, 0x9c, 0xa4, 0xac, 0xb4, 0xbc,
- 0x80, 0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8,
- /* IO Base/Limits Registers */
- 0xc4, 0xcc, 0xd4, 0xdc,
- 0xc0, 0xc8, 0xd0, 0xd8,
- /* Configuration Map Registers */
- 0xe0, 0xe4, 0xe8, 0xec,
- };
- u16 i;
-
- printk(BIOS_DEBUG, "setup_remote_node: %02x", node);
-
- /* copy the default resource map from node 0 */
- for (i = 0; i < ARRAY_SIZE(pci_reg); i++) {
- u32 value;
- u16 reg;
- reg = pci_reg[i];
- value = pci_read_config32(NODE_MP(0), reg);
- pci_write_config32(NODE_MP(node), reg, value);
-
- }
- printk(BIOS_DEBUG, " done\n");
-}
-#endif /* CONFIG_MAX_PHYSICAL_CPUS > 1 */
-
-static void AMD_Errata281(u8 node, u32 revision, u32 platform)
-{
- /* Workaround for Transaction Scheduling Conflict in
- * Northbridge Cross Bar. Implement XCS Token adjustment
- * for ganged links. Also, perform fix up for the mixed
- * revision case.
- */
-
- u32 reg, val;
- u8 i;
- u8 mixed = 0;
- u8 nodes = get_nodes();
-
- if (platform & AMD_PTYPE_SVR) {
- /* For each node we need to check for a "broken" node */
- if (!(revision & (AMD_DR_B0 | AMD_DR_B1))) {
- for (i = 0; i < nodes; i++) {
- if (mctGetLogicalCPUID(i) &
- (AMD_DR_B0 | AMD_DR_B1)) {
- mixed = 1;
- break;
- }
- }
- }
-
- if ((revision & (AMD_DR_B0 | AMD_DR_B1)) || mixed) {
-
- /* F0X68[22:21] DsNpReqLmt0 = 01b */
- val = pci_read_config32(NODE_PCI(node, 0), 0x68);
- val &= ~0x00600000;
- val |= 0x00200000;
- pci_write_config32(NODE_PCI(node, 0), 0x68, val);
-
- /* F3X6C */
- val = pci_read_config32(NODE_PCI(node, 3), 0x6C);
- val &= ~0x700780F7;
- val |= 0x00010094;
- pci_write_config32(NODE_PCI(node, 3), 0x6C, val);
-
- /* F3X7C */
- val = pci_read_config32(NODE_PCI(node, 3), 0x7C);
- val &= ~0x707FFF1F;
- val |= 0x00144514;
- pci_write_config32(NODE_PCI(node, 3), 0x7C, val);
-
- /* F3X144[3:0] RspTok = 0001b */
- val = pci_read_config32(NODE_PCI(node, 3), 0x144);
- val &= ~0x0000000F;
- val |= 0x00000001;
- pci_write_config32(NODE_PCI(node, 3), 0x144, val);
-
- for (i = 0; i < 3; i++) {
- reg = 0x148 + (i * 4);
- val = pci_read_config32(NODE_PCI(node, 3), reg);
- val &= ~0x000000FF;
- val |= 0x000000DB;
- pci_write_config32(NODE_PCI(node, 3), reg, val);
- }
- }
- }
-}
-
-static void AMD_Errata298(void)
-{
- /* Workaround for L2 Eviction May Occur during operation to
- * set Accessed or dirty bit.
- */
-
- msr_t msr;
- u8 i;
- u8 affectedRev = 0;
- u8 nodes = get_nodes();
-
- /* For each core we need to check for a "broken" node */
- for (i = 0; i < nodes; i++) {
- if (mctGetLogicalCPUID(i) & (AMD_DR_B0 | AMD_DR_B1 | AMD_DR_B2)) {
- affectedRev = 1;
- break;
- }
- }
-
- if (affectedRev) {
- msr = rdmsr(HWCR);
- msr.lo |= 0x08; /* Set TlbCacheDis bit[3] */
- wrmsr(HWCR, msr);
-
- msr = rdmsr(BU_CFG);
- msr.lo |= 0x02; /* Set TlbForceMemTypeUc bit[1] */
- wrmsr(BU_CFG, msr);
-
- msr = rdmsr(OSVW_ID_Length);
- msr.lo |= 0x01; /* OS Visible Workaround - MSR */
- wrmsr(OSVW_ID_Length, msr);
-
- msr = rdmsr(OSVW_Status);
- msr.lo |= 0x01; /* OS Visible Workaround - MSR */
- wrmsr(OSVW_Status, msr);
- }
-
- if (!affectedRev && (mctGetLogicalCPUID(0xFF) & AMD_DR_B3)) {
- msr = rdmsr(OSVW_ID_Length);
- msr.lo |= 0x01; /* OS Visible Workaround - MSR */
- wrmsr(OSVW_ID_Length, msr);
-
- }
-}
-
-static u32 get_platform_type(void)
-{
- u32 ret = 0;
-
- switch (SYSTEM_TYPE) {
- case 1:
- ret |= AMD_PTYPE_DSK;
- break;
- case 2:
- ret |= AMD_PTYPE_MOB;
- break;
- case 0:
- ret |= AMD_PTYPE_SVR;
- break;
- default:
- break;
- }
-
- /* FIXME: add UMA support. */
-
- /* All Fam10 are multi core */
- ret |= AMD_PTYPE_MC;
-
- return ret;
-}
-
-static void AMD_SetupPSIVID_d(u32 platform_type, u8 node)
-{
- u32 dword;
- int i;
- msr_t msr;
-
- if (platform_type & (AMD_PTYPE_MOB | AMD_PTYPE_DSK)) {
-
- /* The following code sets the PSIVID to the lowest support P state
- * assuming that the VID for the lowest power state is below
- * the VDD voltage regulator threshold. (This also assumes that there
- * is a Pstate lower than P0)
- */
-
- for (i = 4; i >= 0; i--) {
- msr = rdmsr(PS_REG_BASE + i);
- /* Pstate valid? */
- if (msr.hi & PS_EN_MASK) {
- dword = pci_read_config32(NODE_PCI(i, 3), 0xA0);
- dword &= ~0x7F;
- dword |= (msr.lo >> 9) & 0x7F;
- pci_write_config32(NODE_PCI(i, 3), 0xA0, dword);
- break;
- }
- }
- }
-}
-
-/**
- * AMD_CpuFindCapability - Traverse PCI capability list to find host HT links.
- * HT Phy operations are not valid on links that aren't present, so this
- * prevents invalid accesses.
- *
- * Returns the offset of the link register.
- */
-static BOOL AMD_CpuFindCapability(u8 node, u8 cap_count, u8 * offset)
-{
- u32 reg;
- u32 val;
-
- /* get start of CPU HT Host Capabilities */
- val = pci_read_config32(NODE_PCI(node, 0), 0x34);
- val &= 0xFF; //reg offset of first link
-
- cap_count++;
-
- /* Traverse through the capabilities. */
- do {
- reg = pci_read_config32(NODE_PCI(node, 0), val);
- /* Is the capability block a HyperTransport capability block? */
- if ((reg & 0xFF) == 0x08) {
- /* Is the HT capability block an HT Host Capability? */
- if ((reg & 0xE0000000) == (1 << 29))
- cap_count--;
- }
-
- if (cap_count)
- val = (reg >> 8) & 0xFF; //update reg offset
- } while (cap_count && val);
-
- *offset = (u8) val;
-
- /* If requested capability found val != 0 */
- if (!cap_count)
- return TRUE;
- else
- return FALSE;
-}
-
-/**
- * AMD_checkLinkType - Compare desired link characteristics using a logical
- * link type mask.
- *
- * Returns the link characteristic mask.
- */
-static u32 AMD_checkLinkType(u8 node, u8 link, u8 regoff)
-{
- u32 val;
- u32 linktype = 0;
-
- /* Check connect, init and coherency */
- val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x18);
- val &= 0x1F;
-
- if (val == 3)
- linktype |= HTPHY_LINKTYPE_COHERENT;
-
- if (val == 7)
- linktype |= HTPHY_LINKTYPE_NONCOHERENT;
-
- if (linktype) {
- /* Check gen3 */
- val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x08);
-
- if (((val >> 8) & 0x0F) > 6)
- linktype |= HTPHY_LINKTYPE_HT3;
- else
- linktype |= HTPHY_LINKTYPE_HT1;
-
- /* Check ganged */
- val = pci_read_config32(NODE_PCI(node, 0), (link << 2) + 0x170);
-
- if (val & 1)
- linktype |= HTPHY_LINKTYPE_GANGED;
- else
- linktype |= HTPHY_LINKTYPE_UNGANGED;
- }
- return linktype;
-}
-
-/**
- * AMD_SetHtPhyRegister - Use the HT link's HT Phy portal registers to update
- * a phy setting for that link.
- */
-static void AMD_SetHtPhyRegister(u8 node, u8 link, u8 entry)
-{
- u32 phyReg;
- u32 phyBase;
- u32 val;
-
- /* Determine this link's portal */
- if (link > 3)
- link -= 4;
-
- phyBase = ((u32) link << 3) | 0x180;
-
- /* Get the portal control register's initial value
- * and update it to access the desired phy register
- */
- phyReg = pci_read_config32(NODE_PCI(node, 4), phyBase);
-
- if (fam10_htphy_default[entry].htreg > 0x1FF) {
- phyReg &= ~HTPHY_DIRECT_OFFSET_MASK;
- phyReg |= HTPHY_DIRECT_MAP;
- } else {
- phyReg &= ~HTPHY_OFFSET_MASK;
- }
-
- /* Now get the current phy register data
- * LinkPhyDone = 0, LinkPhyWrite = 0 is a read
- */
- phyReg |= fam10_htphy_default[entry].htreg;
- pci_write_config32(NODE_PCI(node, 4), phyBase, phyReg);
-
- do {
- val = pci_read_config32(NODE_PCI(node, 4), phyBase);
- } while (!(val & HTPHY_IS_COMPLETE_MASK));
-
- /* Now we have the phy register data, apply the change */
- val = pci_read_config32(NODE_PCI(node, 4), phyBase + 4);
- val &= ~fam10_htphy_default[entry].mask;
- val |= fam10_htphy_default[entry].data;
- pci_write_config32(NODE_PCI(node, 4), phyBase + 4, val);
-
- /* write it through the portal to the phy
- * LinkPhyDone = 0, LinkPhyWrite = 1 is a write
- */
- phyReg |= HTPHY_WRITE_CMD;
- pci_write_config32(NODE_PCI(node, 4), phyBase, phyReg);
-
- do {
- val = pci_read_config32(NODE_PCI(node, 4), phyBase);
- } while (!(val & HTPHY_IS_COMPLETE_MASK));
-}
-
-void cpuSetAMDMSR(void)
-{
- /* This routine loads the CPU with default settings in fam10_msr_default
- * table . It must be run after Cache-As-RAM has been enabled, and
- * Hypertransport initialization has taken place. Also note
- * that it is run on the current processor only, and only for the current
- * processor core.
- */
- msr_t msr;
- u8 i;
- u32 revision, platform;
-
- printk(BIOS_DEBUG, "cpuSetAMDMSR ");
-
- revision = mctGetLogicalCPUID(0xFF);
- platform = get_platform_type();
-
- for (i = 0; i < ARRAY_SIZE(fam10_msr_default); i++) {
- if ((fam10_msr_default[i].revision & revision) &&
- (fam10_msr_default[i].platform & platform)) {
- msr = rdmsr(fam10_msr_default[i].msr);
- msr.hi &= ~fam10_msr_default[i].mask_hi;
- msr.hi |= fam10_msr_default[i].data_hi;
- msr.lo &= ~fam10_msr_default[i].mask_lo;
- msr.lo |= fam10_msr_default[i].data_lo;
- wrmsr(fam10_msr_default[i].msr, msr);
- }
- }
- AMD_Errata298();
-
- printk(BIOS_DEBUG, " done\n");
-}
-
-static void cpuSetAMDPCI(u8 node)
-{
- /* This routine loads the CPU with default settings in fam10_pci_default
- * table . It must be run after Cache-As-RAM has been enabled, and
- * Hypertransport initialization has taken place. Also note
- * that it is run for the first core on each node
- */
- u8 i, j;
- u32 revision, platform;
- u32 val;
- u8 offset;
-
- printk(BIOS_DEBUG, "cpuSetAMDPCI %02d", node);
-
- revision = mctGetLogicalCPUID(node);
- platform = get_platform_type();
-
- AMD_SetupPSIVID_d(platform, node); /* Set PSIVID offset which is not table driven */
-
- for (i = 0; i < ARRAY_SIZE(fam10_pci_default); i++) {
- if ((fam10_pci_default[i].revision & revision) &&
- (fam10_pci_default[i].platform & platform)) {
- val = pci_read_config32(NODE_PCI(node,
- fam10_pci_default[i].
- function),
- fam10_pci_default[i].offset);
- val &= ~fam10_pci_default[i].mask;
- val |= fam10_pci_default[i].data;
- pci_write_config32(NODE_PCI(node,
- fam10_pci_default[i].
- function),
- fam10_pci_default[i].offset, val);
- }
- }
-
- for (i = 0; i < ARRAY_SIZE(fam10_htphy_default); i++) {
- if ((fam10_htphy_default[i].revision & revision) &&
- (fam10_htphy_default[i].platform & platform)) {
- /* HT Phy settings either apply to both sublinks or have
- * separate registers for sublink zero and one, so there
- * will be two table entries. So, here we only loop
- * through the sublink zeros in function zero.
- */
- for (j = 0; j < 4; j++) {
- if (AMD_CpuFindCapability(node, j, &offset)) {
- if (AMD_checkLinkType(node, j, offset)
- & fam10_htphy_default[i].linktype) {
- AMD_SetHtPhyRegister(node, j,
- i);
- }
- } else {
- /* No more capabilities,
- * link not present
- */
- break;
- }
- }
- }
- }
-
- /* FIXME: add UMA support and programXbarToSriReg(); */
-
- AMD_Errata281(node, revision, platform);
-
- /* FIXME: if the dct phy doesn't init correct it needs to reset.
- if (revision & (AMD_DR_B2 | AMD_DR_B3))
- dctPhyDiag(); */
-
- printk(BIOS_DEBUG, " done\n");
-}
-
-#ifdef UNUSED_CODE
-static void cpuInitializeMCA(void)
-{
- /* Clears Machine Check Architecture (MCA) registers, which power on
- * containing unknown data, on currently running processor.
- * This routine should only be executed on initial power on (cold boot),
- * not across a warm reset because valid data is present at that time.
- */
-
- msr_t msr;
- u32 reg;
- u8 i;
-
- if (cpuid_edx(1) & 0x4080) { /* MCE and MCA (edx[7] and edx[14]) */
- msr = rdmsr(MCG_CAP);
- if (msr.lo & MCG_CTL_P) { /* MCG_CTL_P bit is set? */
- msr.lo &= 0xFF;
- msr.lo--;
- msr.lo <<= 2; /* multiply the count by 4 */
- reg = MC0_STA + msr.lo;
- msr.lo = msr.hi = 0;
- for (i = 0; i < 4; i++) {
- wrmsr(reg, msr);
- reg -= 4; /* Touch status regs for each bank */
- }
- }
- }
-}
-#endif
-
-/**
- * finalize_node_setup()
- *
- * Do any additional post HT init
- *
- */
-static void finalize_node_setup(struct sys_info *sysinfo)
-{
- u8 i;
- u8 nodes = get_nodes();
- u32 reg;
-
-#if CONFIG_RAMINIT_SYSINFO
- /* read Node0 F0_0x64 bit [8:10] to find out SbLink # */
- reg = pci_read_config32(NODE_HT(0), 0x64);
- sysinfo->sblk = (reg >> 8) & 7;
- sysinfo->sbbusn = 0;
- sysinfo->nodes = nodes;
- sysinfo->sbdn = get_sbdn(sysinfo->sbbusn);
-#endif
-
- for (i = 0; i < nodes; i++) {
- cpuSetAMDPCI(i);
- }
-
-#if SET_FIDVID == 1
- // Prep each node for FID/VID setup.
- prep_fid_change();
-#endif
-
-#if CONFIG_MAX_PHYSICAL_CPUS > 1
- /* Skip the BSP, start at node 1 */
- for (i = 1; i < nodes; i++) {
- setup_remote_node(i);
- start_node(i);
- }
-#endif
-}
-
-#include "fidvid.c"
+/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2008 Advanced Micro Devices, Inc. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "defaults.h" +#include <stdlib.h> +#include <cpu/x86/lapic.h> +#include <cpu/x86/mtrr.h> +#include <northbridge/amd/amdfam10/amdfam10.h> +#include <northbridge/amd/amdht/AsPsDefs.h> +#include <northbridge/amd/amdht/porting.h> + +#include <cpu/x86/mtrr/earlymtrr.c> +#include <northbridge/amd/amdfam10/raminit_amdmct.c> + +//it takes the CONFIG_ENABLE_APIC_EXT_ID and CONFIG_APIC_ID_OFFSET and CONFIG_LIFT_BSP_APIC_ID +#ifndef SET_FIDVID + #define SET_FIDVID 1 +#endif + +#ifndef SET_FIDVID_CORE0_ONLY + /* MSR FIDVID_CTL and FIDVID_STATUS are shared by cores, + Need to do every AP to set common FID/VID */ + #define SET_FIDVID_CORE0_ONLY 0 +#endif + +static void prep_fid_change(void); +static void init_fidvid_stage2(u32 apicid, u32 nodeid); +void cpuSetAMDMSR(void); + +#if CONFIG_PCI_IO_CFG_EXT == 1 +static void set_EnableCf8ExtCfg(void) +{ + // set the NB_CFG[46]=1; + msr_t msr; + msr = rdmsr(NB_CFG_MSR); + // EnableCf8ExtCfg: We need that to access CONFIG_PCI_IO_CFG_EXT 4K range + msr.hi |= (1 << (46 - 32)); + wrmsr(NB_CFG_MSR, msr); +} +#else +static void set_EnableCf8ExtCfg(void) { } +#endif + + +typedef void (*process_ap_t) (u32 apicid, void *gp); + +//core_range = 0 : all cores +//core range = 1 : core 0 only +//core range = 2 : cores other than core0 + +static void for_each_ap(u32 bsp_apicid, u32 core_range, process_ap_t process_ap, + void *gp) +{ + // here assume the OS don't change our apicid + u32 ap_apicid; + + u32 nodes; + u32 siblings; + u32 disable_siblings; + u32 cores_found; + u32 nb_cfg_54; + int i, j; + u32 ApicIdCoreIdSize; + + /* get_nodes define in ht_wrapper.c */ + nodes = get_nodes(); + + if (!CONFIG_LOGICAL_CPUS || + read_option(CMOS_VSTART_multi_core, CMOS_VLEN_multi_core, 0) != 0) { // 0 means multi core + disable_siblings = 1; + } else { + disable_siblings = 0; + } + + /* Assume that all node are same stepping, otherwise we can use use + nb_cfg_54 from bsp for all nodes */ + nb_cfg_54 = read_nb_cfg_54(); + + ApicIdCoreIdSize = (cpuid_ecx(0x80000008) >> 12 & 0xf); + if (ApicIdCoreIdSize) { + siblings = ((1 << ApicIdCoreIdSize) - 1); + } else { + siblings = 3; //quad core + } + + for (i = 0; i < nodes; i++) { + cores_found = get_core_num_in_bsp(i); + + u32 jstart, jend; + + if (core_range == 2) { + jstart = 1; + } else { + jstart = 0; + } + + if (disable_siblings || (core_range == 1)) { + jend = 0; + } else { + jend = cores_found; + } + + for (j = jstart; j <= jend; j++) { + ap_apicid = + i * (nb_cfg_54 ? (siblings + 1) : 1) + + j * (nb_cfg_54 ? 1 : 64); + +#if (CONFIG_ENABLE_APIC_EXT_ID == 1) && (CONFIG_APIC_ID_OFFSET > 0) +#if CONFIG_LIFT_BSP_APIC_ID == 0 + if ((i != 0) || (j != 0)) /* except bsp */ +#endif + ap_apicid += CONFIG_APIC_ID_OFFSET; +#endif + + if (ap_apicid == bsp_apicid) + continue; + + process_ap(ap_apicid, gp); + + } + } +} + +static inline int lapic_remote_read(int apicid, int reg, u32 *pvalue) +{ + int timeout; + u32 status; + int result; + lapic_wait_icr_idle(); + lapic_write(LAPIC_ICR2, SET_LAPIC_DEST_FIELD(apicid)); + lapic_write(LAPIC_ICR, LAPIC_DM_REMRD | (reg >> 4)); + +/* Extra busy check compared to lapic.h */ + timeout = 0; + do { + status = lapic_read(LAPIC_ICR) & LAPIC_ICR_BUSY; + } while (status == LAPIC_ICR_BUSY && timeout++ < 1000); + + timeout = 0; + do { + status = lapic_read(LAPIC_ICR) & LAPIC_ICR_RR_MASK; + } while (status == LAPIC_ICR_RR_INPROG && timeout++ < 1000); + + result = -1; + + if (status == LAPIC_ICR_RR_VALID) { + *pvalue = lapic_read(LAPIC_RRR); + result = 0; + } + return result; +} + +#if SET_FIDVID == 1 +static void init_fidvid_ap(u32 bsp_apicid, u32 apicid, u32 nodeid, u32 coreid); +#endif + +static inline __attribute__ ((always_inline)) +void print_apicid_nodeid_coreid(u32 apicid, struct node_core_id id, + const char *str) +{ + printk(BIOS_DEBUG, + "%s --- { APICID = %02x NODEID = %02x COREID = %02x} ---\n", str, + apicid, id.nodeid, id.coreid); +} + +static u32 wait_cpu_state(u32 apicid, u32 state) +{ + u32 readback = 0; + u32 timeout = 1; + int loop = 4000000; + while (--loop > 0) { + if (lapic_remote_read(apicid, LAPIC_MSG_REG, &readback) != 0) + continue; + if ((readback & 0x3f) == state || (readback & 0x3f) == F10_APSTATE_RESET) { + timeout = 0; + break; //target cpu is in stage started + } + } + if (timeout) { + if (readback) { + timeout = readback; + } + } + + return timeout; +} + +static void wait_ap_started(u32 ap_apicid, void *gp) +{ + u32 timeout; + timeout = wait_cpu_state(ap_apicid, F10_APSTATE_STARTED); + printk(BIOS_DEBUG, "* AP %02x", ap_apicid); + if (timeout) { + printk(BIOS_DEBUG, " timed out:%08x\n", timeout); + } else { + printk(BIOS_DEBUG, "started\n"); + } +} + +void wait_all_other_cores_started(u32 bsp_apicid) +{ + // all aps other than core0 + printk(BIOS_DEBUG, "started ap apicid: "); + for_each_ap(bsp_apicid, 2, wait_ap_started, (void *)0); + printk(BIOS_DEBUG, "\n"); +} + +void allow_all_aps_stop(u32 bsp_apicid) +{ + /* Called by the BSP to indicate AP can stop */ + + /* FIXME Do APs use this? */ + + // allow aps to stop use 6 bits for state + lapic_write(LAPIC_MSG_REG, (bsp_apicid << 24) | F10_APSTATE_STOPPED); +} + +static void enable_apic_ext_id(u32 node) +{ + u32 val; + + val = pci_read_config32(NODE_HT(node), 0x68); + val |= (HTTC_APIC_EXT_SPUR | HTTC_APIC_EXT_ID | HTTC_APIC_EXT_BRD_CST); + pci_write_config32(NODE_HT(node), 0x68, val); +} + +static void STOP_CAR_AND_CPU(void) +{ + msr_t msr; + + /* Disable L2 IC to L3 connection (Only for CAR) */ + msr = rdmsr(BU_CFG2); + msr.lo &= ~(1 << ClLinesToNbDis); + wrmsr(BU_CFG2, msr); + + disable_cache_as_ram(); // inline + /* stop all cores except node0/core0 the bsp .... */ + stop_this_cpu(); +} + +#if CONFIG_RAMINIT_SYSINFO +static u32 init_cpus(u32 cpu_init_detectedx, struct sys_info *sysinfo) +#else +static u32 init_cpus(u32 cpu_init_detectedx) +#endif +{ + u32 bsp_apicid = 0; + u32 apicid; + struct node_core_id id; + + /* + * already set early mtrr in cache_as_ram.inc + */ + + /* that is from initial apicid, we need nodeid and coreid + later */ + id = get_node_core_id_x(); + + /* NB_CFG MSR is shared between cores, so we need make sure + core0 is done at first --- use wait_all_core0_started */ + if (id.coreid == 0) { + set_apicid_cpuid_lo(); /* only set it on core0 */ + set_EnableCf8ExtCfg(); /* only set it on core0 */ +#if (CONFIG_ENABLE_APIC_EXT_ID == 1) + enable_apic_ext_id(id.nodeid); +#endif + } + + enable_lapic(); + +#if (CONFIG_ENABLE_APIC_EXT_ID == 1) && (CONFIG_APIC_ID_OFFSET > 0) + u32 initial_apicid = get_initial_apicid(); + +#if CONFIG_LIFT_BSP_APIC_ID == 0 + if (initial_apicid != 0) // other than bsp +#endif + { + /* use initial apic id to lift it */ + u32 dword = lapic_read(LAPIC_ID); + dword &= ~(0xff << 24); + dword |= + (((initial_apicid + CONFIG_APIC_ID_OFFSET) & 0xff) << 24); + + lapic_write(LAPIC_ID, dword); + } +#if CONFIG_LIFT_BSP_APIC_ID == 1 + bsp_apicid += CONFIG_APIC_ID_OFFSET; +#endif + +#endif + + /* get the apicid, it may be lifted already */ + apicid = lapicid(); + + // show our apicid, nodeid, and coreid + if (id.coreid == 0) { + if (id.nodeid != 0) //all core0 except bsp + print_apicid_nodeid_coreid(apicid, id, " core0: "); + } else { //all other cores + print_apicid_nodeid_coreid(apicid, id, " corex: "); + } + + if (cpu_init_detectedx) { + print_apicid_nodeid_coreid(apicid, id, + "\n\n\nINIT detected from "); + printk(BIOS_DEBUG, "\nIssuing SOFT_RESET...\n"); + soft_reset(); + } + + if (id.coreid == 0) { + if (!(warm_reset_detect(id.nodeid))) //FIXME: INIT is checked above but check for more resets? + distinguish_cpu_resets(id.nodeid); // Also indicates we are started + } + // Mark the core as started. + lapic_write(LAPIC_MSG_REG, (apicid << 24) | F10_APSTATE_STARTED); + + if (apicid != bsp_apicid) { + /* Setup each AP's cores MSRs. + * This happens after HTinit. + * The BSP runs this code in it's own path. + */ + update_microcode(cpuid_eax(1)); + cpuSetAMDMSR(); + +#if SET_FIDVID == 1 +#if (CONFIG_LOGICAL_CPUS == 1) && (SET_FIDVID_CORE0_ONLY == 1) + // Run on all AP for proper FID/VID setup. + if (id.coreid == 0) // only need set fid for core0 +#endif + { + // check warm(bios) reset to call stage2 otherwise do stage1 + if (warm_reset_detect(id.nodeid)) { + printk(BIOS_DEBUG, + "init_fidvid_stage2 apicid: %02x\n", + apicid); + init_fidvid_stage2(apicid, id.nodeid); + } else { + printk(BIOS_DEBUG, + "init_fidvid_ap(stage1) apicid: %02x\n", + apicid); + init_fidvid_ap(bsp_apicid, apicid, id.nodeid, + id.coreid); + } + } +#endif + + /* AP is ready, configure MTRRs and go to sleep */ + set_var_mtrr(0, 0x00000000, CONFIG_RAMTOP, MTRR_TYPE_WRBACK); + + STOP_CAR_AND_CPU(); + + printk(BIOS_DEBUG, + "\nAP %02x should be halted but you are reading this....\n", + apicid); + } + + return bsp_apicid; +} + +static u32 is_core0_started(u32 nodeid) +{ + u32 htic; + device_t device; + device = NODE_PCI(nodeid, 0); + htic = pci_read_config32(device, HT_INIT_CONTROL); + htic &= HTIC_ColdR_Detect; + return htic; +} + +void wait_all_core0_started(void) +{ + /* When core0 is started, it will distingush_cpu_resets + * So wait for that to finish */ + u32 i; + u32 nodes = get_nodes(); + + printk(BIOS_DEBUG, "core0 started: "); + for (i = 1; i < nodes; i++) { // skip bsp, because it is running on bsp + while (!is_core0_started(i)) { + } + printk(BIOS_DEBUG, " %02x", i); + } + printk(BIOS_DEBUG, "\n"); +} + +#if CONFIG_MAX_PHYSICAL_CPUS > 1 +/** + * void start_node(u32 node) + * + * start the core0 in node, so it can generate HT packet to feature code. + * + * This function starts the AP nodes core0s. wait_all_core0_started() in + * romstage.c waits for all the AP to be finished before continuing + * system init. + */ +static void start_node(u8 node) +{ + u32 val; + + /* Enable routing table */ + printk(BIOS_DEBUG, "Start node %02x", node); + +#if CONFIG_NORTHBRIDGE_AMD_AMDFAM10 + /* For FAM10 support, we need to set Dram base/limit for the new node */ + pci_write_config32(NODE_MP(node), 0x44, 0); + pci_write_config32(NODE_MP(node), 0x40, 3); +#endif + + /* Allow APs to make requests (ROM fetch) */ + val = pci_read_config32(NODE_HT(node), 0x6c); + val &= ~(1 << 1); + pci_write_config32(NODE_HT(node), 0x6c, val); + + printk(BIOS_DEBUG, " done.\n"); +} + +/** + * static void setup_remote_node(u32 node) + * + * Copy the BSP Adress Map to each AP. + */ +static void setup_remote_node(u8 node) +{ + /* There registers can be used with F1x114_x Address Map at the + same time, So must set them even 32 node */ + static const u16 pci_reg[] = { + /* DRAM Base/Limits Registers */ + 0x44, 0x4c, 0x54, 0x5c, 0x64, 0x6c, 0x74, 0x7c, + 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78, + 0x144, 0x14c, 0x154, 0x15c, 0x164, 0x16c, 0x174, 0x17c, + 0x140, 0x148, 0x150, 0x158, 0x160, 0x168, 0x170, 0x178, + /* MMIO Base/Limits Registers */ + 0x84, 0x8c, 0x94, 0x9c, 0xa4, 0xac, 0xb4, 0xbc, + 0x80, 0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8, + /* IO Base/Limits Registers */ + 0xc4, 0xcc, 0xd4, 0xdc, + 0xc0, 0xc8, 0xd0, 0xd8, + /* Configuration Map Registers */ + 0xe0, 0xe4, 0xe8, 0xec, + }; + u16 i; + + printk(BIOS_DEBUG, "setup_remote_node: %02x", node); + + /* copy the default resource map from node 0 */ + for (i = 0; i < ARRAY_SIZE(pci_reg); i++) { + u32 value; + u16 reg; + reg = pci_reg[i]; + value = pci_read_config32(NODE_MP(0), reg); + pci_write_config32(NODE_MP(node), reg, value); + + } + printk(BIOS_DEBUG, " done\n"); +} +#endif /* CONFIG_MAX_PHYSICAL_CPUS > 1 */ + +static void AMD_Errata281(u8 node, u32 revision, u32 platform) +{ + /* Workaround for Transaction Scheduling Conflict in + * Northbridge Cross Bar. Implement XCS Token adjustment + * for ganged links. Also, perform fix up for the mixed + * revision case. + */ + + u32 reg, val; + u8 i; + u8 mixed = 0; + u8 nodes = get_nodes(); + + if (platform & AMD_PTYPE_SVR) { + /* For each node we need to check for a "broken" node */ + if (!(revision & (AMD_DR_B0 | AMD_DR_B1))) { + for (i = 0; i < nodes; i++) { + if (mctGetLogicalCPUID(i) & + (AMD_DR_B0 | AMD_DR_B1)) { + mixed = 1; + break; + } + } + } + + if ((revision & (AMD_DR_B0 | AMD_DR_B1)) || mixed) { + + /* F0X68[22:21] DsNpReqLmt0 = 01b */ + val = pci_read_config32(NODE_PCI(node, 0), 0x68); + val &= ~0x00600000; + val |= 0x00200000; + pci_write_config32(NODE_PCI(node, 0), 0x68, val); + + /* F3X6C */ + val = pci_read_config32(NODE_PCI(node, 3), 0x6C); + val &= ~0x700780F7; + val |= 0x00010094; + pci_write_config32(NODE_PCI(node, 3), 0x6C, val); + + /* F3X7C */ + val = pci_read_config32(NODE_PCI(node, 3), 0x7C); + val &= ~0x707FFF1F; + val |= 0x00144514; + pci_write_config32(NODE_PCI(node, 3), 0x7C, val); + + /* F3X144[3:0] RspTok = 0001b */ + val = pci_read_config32(NODE_PCI(node, 3), 0x144); + val &= ~0x0000000F; + val |= 0x00000001; + pci_write_config32(NODE_PCI(node, 3), 0x144, val); + + for (i = 0; i < 3; i++) { + reg = 0x148 + (i * 4); + val = pci_read_config32(NODE_PCI(node, 3), reg); + val &= ~0x000000FF; + val |= 0x000000DB; + pci_write_config32(NODE_PCI(node, 3), reg, val); + } + } + } +} + +static void AMD_Errata298(void) +{ + /* Workaround for L2 Eviction May Occur during operation to + * set Accessed or dirty bit. + */ + + msr_t msr; + u8 i; + u8 affectedRev = 0; + u8 nodes = get_nodes(); + + /* For each core we need to check for a "broken" node */ + for (i = 0; i < nodes; i++) { + if (mctGetLogicalCPUID(i) & (AMD_DR_B0 | AMD_DR_B1 | AMD_DR_B2)) { + affectedRev = 1; + break; + } + } + + if (affectedRev) { + msr = rdmsr(HWCR); + msr.lo |= 0x08; /* Set TlbCacheDis bit[3] */ + wrmsr(HWCR, msr); + + msr = rdmsr(BU_CFG); + msr.lo |= 0x02; /* Set TlbForceMemTypeUc bit[1] */ + wrmsr(BU_CFG, msr); + + msr = rdmsr(OSVW_ID_Length); + msr.lo |= 0x01; /* OS Visible Workaround - MSR */ + wrmsr(OSVW_ID_Length, msr); + + msr = rdmsr(OSVW_Status); + msr.lo |= 0x01; /* OS Visible Workaround - MSR */ + wrmsr(OSVW_Status, msr); + } + + if (!affectedRev && (mctGetLogicalCPUID(0xFF) & AMD_DR_B3)) { + msr = rdmsr(OSVW_ID_Length); + msr.lo |= 0x01; /* OS Visible Workaround - MSR */ + wrmsr(OSVW_ID_Length, msr); + + } +} + +static u32 get_platform_type(void) +{ + u32 ret = 0; + + switch (SYSTEM_TYPE) { + case 1: + ret |= AMD_PTYPE_DSK; + break; + case 2: + ret |= AMD_PTYPE_MOB; + break; + case 0: + ret |= AMD_PTYPE_SVR; + break; + default: + break; + } + + /* FIXME: add UMA support. */ + + /* All Fam10 are multi core */ + ret |= AMD_PTYPE_MC; + + return ret; +} + +static void AMD_SetupPSIVID_d(u32 platform_type, u8 node) +{ + u32 dword; + int i; + msr_t msr; + + if (platform_type & (AMD_PTYPE_MOB | AMD_PTYPE_DSK)) { + + /* The following code sets the PSIVID to the lowest support P state + * assuming that the VID for the lowest power state is below + * the VDD voltage regulator threshold. (This also assumes that there + * is a Pstate lower than P0) + */ + + for (i = 4; i >= 0; i--) { + msr = rdmsr(PS_REG_BASE + i); + /* Pstate valid? */ + if (msr.hi & PS_EN_MASK) { + dword = pci_read_config32(NODE_PCI(i, 3), 0xA0); + dword &= ~0x7F; + dword |= (msr.lo >> 9) & 0x7F; + pci_write_config32(NODE_PCI(i, 3), 0xA0, dword); + break; + } + } + } +} + +/** + * AMD_CpuFindCapability - Traverse PCI capability list to find host HT links. + * HT Phy operations are not valid on links that aren't present, so this + * prevents invalid accesses. + * + * Returns the offset of the link register. + */ +static BOOL AMD_CpuFindCapability(u8 node, u8 cap_count, u8 * offset) +{ + u32 reg; + u32 val; + + /* get start of CPU HT Host Capabilities */ + val = pci_read_config32(NODE_PCI(node, 0), 0x34); + val &= 0xFF; //reg offset of first link + + cap_count++; + + /* Traverse through the capabilities. */ + do { + reg = pci_read_config32(NODE_PCI(node, 0), val); + /* Is the capability block a HyperTransport capability block? */ + if ((reg & 0xFF) == 0x08) { + /* Is the HT capability block an HT Host Capability? */ + if ((reg & 0xE0000000) == (1 << 29)) + cap_count--; + } + + if (cap_count) + val = (reg >> 8) & 0xFF; //update reg offset + } while (cap_count && val); + + *offset = (u8) val; + + /* If requested capability found val != 0 */ + if (!cap_count) + return TRUE; + else + return FALSE; +} + +/** + * AMD_checkLinkType - Compare desired link characteristics using a logical + * link type mask. + * + * Returns the link characteristic mask. + */ +static u32 AMD_checkLinkType(u8 node, u8 link, u8 regoff) +{ + u32 val; + u32 linktype = 0; + + /* Check connect, init and coherency */ + val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x18); + val &= 0x1F; + + if (val == 3) + linktype |= HTPHY_LINKTYPE_COHERENT; + + if (val == 7) + linktype |= HTPHY_LINKTYPE_NONCOHERENT; + + if (linktype) { + /* Check gen3 */ + val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x08); + + if (((val >> 8) & 0x0F) > 6) + linktype |= HTPHY_LINKTYPE_HT3; + else + linktype |= HTPHY_LINKTYPE_HT1; + + /* Check ganged */ + val = pci_read_config32(NODE_PCI(node, 0), (link << 2) + 0x170); + + if (val & 1) + linktype |= HTPHY_LINKTYPE_GANGED; + else + linktype |= HTPHY_LINKTYPE_UNGANGED; + } + return linktype; +} + +/** + * AMD_SetHtPhyRegister - Use the HT link's HT Phy portal registers to update + * a phy setting for that link. + */ +static void AMD_SetHtPhyRegister(u8 node, u8 link, u8 entry) +{ + u32 phyReg; + u32 phyBase; + u32 val; + + /* Determine this link's portal */ + if (link > 3) + link -= 4; + + phyBase = ((u32) link << 3) | 0x180; + + /* Get the portal control register's initial value + * and update it to access the desired phy register + */ + phyReg = pci_read_config32(NODE_PCI(node, 4), phyBase); + + if (fam10_htphy_default[entry].htreg > 0x1FF) { + phyReg &= ~HTPHY_DIRECT_OFFSET_MASK; + phyReg |= HTPHY_DIRECT_MAP; + } else { + phyReg &= ~HTPHY_OFFSET_MASK; + } + + /* Now get the current phy register data + * LinkPhyDone = 0, LinkPhyWrite = 0 is a read + */ + phyReg |= fam10_htphy_default[entry].htreg; + pci_write_config32(NODE_PCI(node, 4), phyBase, phyReg); + + do { + val = pci_read_config32(NODE_PCI(node, 4), phyBase); + } while (!(val & HTPHY_IS_COMPLETE_MASK)); + + /* Now we have the phy register data, apply the change */ + val = pci_read_config32(NODE_PCI(node, 4), phyBase + 4); + val &= ~fam10_htphy_default[entry].mask; + val |= fam10_htphy_default[entry].data; + pci_write_config32(NODE_PCI(node, 4), phyBase + 4, val); + + /* write it through the portal to the phy + * LinkPhyDone = 0, LinkPhyWrite = 1 is a write + */ + phyReg |= HTPHY_WRITE_CMD; + pci_write_config32(NODE_PCI(node, 4), phyBase, phyReg); + + do { + val = pci_read_config32(NODE_PCI(node, 4), phyBase); + } while (!(val & HTPHY_IS_COMPLETE_MASK)); +} + +void cpuSetAMDMSR(void) +{ + /* This routine loads the CPU with default settings in fam10_msr_default + * table . It must be run after Cache-As-RAM has been enabled, and + * Hypertransport initialization has taken place. Also note + * that it is run on the current processor only, and only for the current + * processor core. + */ + msr_t msr; + u8 i; + u32 revision, platform; + + printk(BIOS_DEBUG, "cpuSetAMDMSR "); + + revision = mctGetLogicalCPUID(0xFF); + platform = get_platform_type(); + + for (i = 0; i < ARRAY_SIZE(fam10_msr_default); i++) { + if ((fam10_msr_default[i].revision & revision) && + (fam10_msr_default[i].platform & platform)) { + msr = rdmsr(fam10_msr_default[i].msr); + msr.hi &= ~fam10_msr_default[i].mask_hi; + msr.hi |= fam10_msr_default[i].data_hi; + msr.lo &= ~fam10_msr_default[i].mask_lo; + msr.lo |= fam10_msr_default[i].data_lo; + wrmsr(fam10_msr_default[i].msr, msr); + } + } + AMD_Errata298(); + + printk(BIOS_DEBUG, " done\n"); +} + +static void cpuSetAMDPCI(u8 node) +{ + /* This routine loads the CPU with default settings in fam10_pci_default + * table . It must be run after Cache-As-RAM has been enabled, and + * Hypertransport initialization has taken place. Also note + * that it is run for the first core on each node + */ + u8 i, j; + u32 revision, platform; + u32 val; + u8 offset; + + printk(BIOS_DEBUG, "cpuSetAMDPCI %02d", node); + + revision = mctGetLogicalCPUID(node); + platform = get_platform_type(); + + AMD_SetupPSIVID_d(platform, node); /* Set PSIVID offset which is not table driven */ + + for (i = 0; i < ARRAY_SIZE(fam10_pci_default); i++) { + if ((fam10_pci_default[i].revision & revision) && + (fam10_pci_default[i].platform & platform)) { + val = pci_read_config32(NODE_PCI(node, + fam10_pci_default[i]. + function), + fam10_pci_default[i].offset); + val &= ~fam10_pci_default[i].mask; + val |= fam10_pci_default[i].data; + pci_write_config32(NODE_PCI(node, + fam10_pci_default[i]. + function), + fam10_pci_default[i].offset, val); + } + } + + for (i = 0; i < ARRAY_SIZE(fam10_htphy_default); i++) { + if ((fam10_htphy_default[i].revision & revision) && + (fam10_htphy_default[i].platform & platform)) { + /* HT Phy settings either apply to both sublinks or have + * separate registers for sublink zero and one, so there + * will be two table entries. So, here we only loop + * through the sublink zeros in function zero. + */ + for (j = 0; j < 4; j++) { + if (AMD_CpuFindCapability(node, j, &offset)) { + if (AMD_checkLinkType(node, j, offset) + & fam10_htphy_default[i].linktype) { + AMD_SetHtPhyRegister(node, j, + i); + } + } else { + /* No more capabilities, + * link not present + */ + break; + } + } + } + } + + /* FIXME: add UMA support and programXbarToSriReg(); */ + + AMD_Errata281(node, revision, platform); + + /* FIXME: if the dct phy doesn't init correct it needs to reset. + if (revision & (AMD_DR_B2 | AMD_DR_B3)) + dctPhyDiag(); */ + + printk(BIOS_DEBUG, " done\n"); +} + +#ifdef UNUSED_CODE +static void cpuInitializeMCA(void) +{ + /* Clears Machine Check Architecture (MCA) registers, which power on + * containing unknown data, on currently running processor. + * This routine should only be executed on initial power on (cold boot), + * not across a warm reset because valid data is present at that time. + */ + + msr_t msr; + u32 reg; + u8 i; + + if (cpuid_edx(1) & 0x4080) { /* MCE and MCA (edx[7] and edx[14]) */ + msr = rdmsr(MCG_CAP); + if (msr.lo & MCG_CTL_P) { /* MCG_CTL_P bit is set? */ + msr.lo &= 0xFF; + msr.lo--; + msr.lo <<= 2; /* multiply the count by 4 */ + reg = MC0_STA + msr.lo; + msr.lo = msr.hi = 0; + for (i = 0; i < 4; i++) { + wrmsr(reg, msr); + reg -= 4; /* Touch status regs for each bank */ + } + } + } +} +#endif + +/** + * finalize_node_setup() + * + * Do any additional post HT init + * + */ +static void finalize_node_setup(struct sys_info *sysinfo) +{ + u8 i; + u8 nodes = get_nodes(); + u32 reg; + +#if CONFIG_RAMINIT_SYSINFO + /* read Node0 F0_0x64 bit [8:10] to find out SbLink # */ + reg = pci_read_config32(NODE_HT(0), 0x64); + sysinfo->sblk = (reg >> 8) & 7; + sysinfo->sbbusn = 0; + sysinfo->nodes = nodes; + sysinfo->sbdn = get_sbdn(sysinfo->sbbusn); +#endif + + for (i = 0; i < nodes; i++) { + cpuSetAMDPCI(i); + } + +#if SET_FIDVID == 1 + // Prep each node for FID/VID setup. + prep_fid_change(); +#endif + +#if CONFIG_MAX_PHYSICAL_CPUS > 1 + /* Skip the BSP, start at node 1 */ + for (i = 1; i < nodes; i++) { + setup_remote_node(i); + start_node(i); + } +#endif +} + +#include "fidvid.c" |