Kyösti Mälkki (kyosti.malkki@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8349
-gerrit
commit 954df57a112a7436007da002d4a7300aa0d46e9a Author: Kyösti Mälkki kyosti.malkki@gmail.com Date: Wed Feb 4 13:09:06 2015 +0200
AMD K8 fam10: Refactor offset_unitid configuration
Change-Id: I198f2ad321e1a8b6d932f5624b129e312e36a309 Signed-off-by: Kyösti Mälkki kyosti.malkki@gmail.com --- src/include/device/hypertransport_def.h | 7 +++++++ src/northbridge/amd/amdfam10/northbridge.c | 23 ++++++++++------------- src/northbridge/amd/amdk8/incoherent_ht.c | 14 ++++---------- src/northbridge/amd/amdk8/northbridge.c | 24 ++++++++++-------------- 4 files changed, 31 insertions(+), 37 deletions(-)
diff --git a/src/include/device/hypertransport_def.h b/src/include/device/hypertransport_def.h index d6276ba..8af94d9 100644 --- a/src/include/device/hypertransport_def.h +++ b/src/include/device/hypertransport_def.h @@ -18,4 +18,11 @@ #define HT_FREQ_2600Mhz 14 #define HT_FREQ_VENDOR 15 /* AMD defines this to be 100Mhz */
+ +static inline bool offset_unit_id(bool is_sb_ht_chain) +{ + bool need_offset = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20); + return need_offset && (!CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY || is_sb_ht_chain); +} + #endif /* DEVICE_HYPERTRANSPORT_DEF_H */ diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index 8f6d6f9..275c79c 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -140,8 +140,8 @@ static void set_vga_enable_reg(u32 nodeid, u32 linkn)
}
-static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 sblink, - u32 max, u32 offset_unitid) +static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_sblink, + u32 max) { // I want to put sb chain in bus 0 can I?
@@ -197,7 +197,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 s */ #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0 // first chain will on bus 0 - if((nodeid == 0) && (sblink==link->link_num)) { // actually max is 0 here + if (is_sblink) { // actually max is 0 here min_bus = max; } #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1 @@ -253,7 +253,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 s else max_devfn = (0x1f<<3) | 7;
- max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unitid); + max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unit_id(is_sblink));
/* We know the number of busses behind this bridge. Set the * subordinate bus number to it's real value @@ -290,9 +290,9 @@ static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
/* Do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0 */ for (link = dev->link_list; link; link = link->next) { - unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20); - if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink)) - max = amdfam10_scan_chain(dev, nodeid, link, sblink, max, offset_unitid); + bool is_sblink = (nodeid == 0) && (link->link_num == sblink); + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && is_sblink) + max = amdfam10_scan_chain(dev, nodeid, link, is_sblink, max); }
#if CONFIG_PCI_BUS_SEGN_BITS @@ -300,14 +300,11 @@ static unsigned amdfam10_scan_chains(device_t dev, unsigned max) #endif
for (link = dev->link_list; link; link = link->next) { - if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink)) + bool is_sblink = (nodeid == 0) && (link->link_num == sblink); + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && is_sblink) continue;
- unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20); - offset_unitid = offset_unitid && - (((nodeid == 0) && (sblink == link->link_num)) || !CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY); - - max = amdfam10_scan_chain(dev, nodeid, link, sblink, max, offset_unitid); + max = amdfam10_scan_chain(dev, nodeid, link, is_sblink, max); } return max; } diff --git a/src/northbridge/amd/amdk8/incoherent_ht.c b/src/northbridge/amd/amdk8/incoherent_ht.c index 40589c4..d765fc7 100644 --- a/src/northbridge/amd/amdk8/incoherent_ht.c +++ b/src/northbridge/amd/amdk8/incoherent_ht.c @@ -546,10 +546,7 @@ static int optimize_link_read_pointers_chain(uint8_t ht_c_num) linkn = ((reg & 0xf00)>>8); // link n busn = (reg & 0xff0000)>>16; //busn
- unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20); - offset_unitid = offset_unitid && (!CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY || (i == 0)); - - devn = offset_unitid ? CONFIG_HT_CHAIN_UNITID_BASE : 1; + devn = offset_unit_id(i == 0) ? CONFIG_HT_CHAIN_UNITID_BASE : 1;
reg = pci_read_config32( PCI_DEV(busn, devn, 0), PCI_VENDOR_ID); // ? the chain dev maybe offseted if ( (reg & 0xffff) == PCI_VENDOR_ID_AMD) { @@ -668,19 +665,16 @@ static int ht_setup_chains(uint8_t ht_c_num) dword |= (reg & 0xffff0000)>>8; pci_write_config32( PCI_DEV(0, devpos,0), regpos , dword);
- unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20); - offset_unitid = offset_unitid && (!CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY || (i == 0)); - /* Make certain the HT bus is not enumerated */ - ht_collapse_previous_enumeration(busn, offset_unitid); + ht_collapse_previous_enumeration(busn, offset_unit_id(i == 0));
upos = ((reg & 0xf00)>>8) * 0x20 + 0x80; udev = PCI_DEV(0, devpos, 0);
#if CONFIG_RAMINIT_SYSINFO - ht_setup_chainx(udev,upos,busn, offset_unitid, sysinfo); // all not + ht_setup_chainx(udev,upos,busn, offset_unit_id(i == 0), sysinfo); // all not #else - reset_needed |= ht_setup_chainx(udev,upos,busn, offset_unitid); //all not + reset_needed |= ht_setup_chainx(udev,upos,busn, offset_unit_id(i == 0)); //all not #endif
} diff --git a/src/northbridge/amd/amdk8/northbridge.c b/src/northbridge/amd/amdk8/northbridge.c index 6785659..29fa2a4 100644 --- a/src/northbridge/amd/amdk8/northbridge.c +++ b/src/northbridge/amd/amdk8/northbridge.c @@ -84,8 +84,8 @@ static u32 amdk8_nodeid(device_t dev) return (dev->path.pci.devfn >> 3) - 0x18; }
-static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 sblink, - u32 max, u32 offset_unitid) +static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_sblink, + u32 max) {
u32 link_type; @@ -143,7 +143,7 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 sbli */ #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0 // first chain will on bus 0 - if((nodeid == 0) && (sblink==link->link_num)) { // actually max is 0 here + if(is_sblink) { // actually max is 0 here min_bus = max; } #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1 @@ -203,7 +203,7 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 sbli else max_devfn = (0x1f<<3) | 7;
- max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unitid); + max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unit_id(is_sblink));
/* We know the number of busses behind this bridge. Set the * subordinate bus number to it's real value @@ -244,21 +244,17 @@ static unsigned amdk8_scan_chains(device_t dev, unsigned max)
// do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0 for (link = dev->link_list; link; link = link->next) { - unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20); - - if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink)) - max = amdk8_scan_chain(dev, nodeid, link, sblink, max, offset_unitid); + bool is_sblink = (nodeid == 0) && (link->link_num == sblink); + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && is_sblink) + max = amdk8_scan_chain(dev, nodeid, link, is_sblink, max); }
for (link = dev->link_list; link; link = link->next) { - if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && (nodeid == 0) && (link->link_num == sblink)) + bool is_sblink = (nodeid == 0) && (link->link_num == sblink); + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && is_sblink) continue;
- unsigned offset_unitid = (CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20); - offset_unitid = offset_unitid && - (((nodeid == 0) && (sblink == link->link_num)) || !CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY); - - max = amdk8_scan_chain(dev, nodeid, link, sblink, max, offset_unitid); + max = amdk8_scan_chain(dev, nodeid, link, is_sblink, max); } return max; }