Kyösti Mälkki (kyosti.malkki@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8558
-gerrit
commit 0c8312ea27617bb17a460f4d86a02255e6179e1c Author: Kyösti Mälkki kyosti.malkki@gmail.com Date: Sat Feb 21 11:19:01 2015 +0200
AMD fam10: Refactor calls for HT configuration
Change-Id: Ic8fbafdfadbc4ef0896d93e61c8a54ce69297e07 Signed-off-by: Kyösti Mälkki kyosti.malkki@gmail.com --- src/northbridge/amd/amdfam10/ht_config.c | 71 +++++++++++++++++------------- src/northbridge/amd/amdfam10/ht_config.h | 15 +++---- src/northbridge/amd/amdfam10/northbridge.c | 39 +++++++--------- 3 files changed, 61 insertions(+), 64 deletions(-)
diff --git a/src/northbridge/amd/amdfam10/ht_config.c b/src/northbridge/amd/amdfam10/ht_config.c index efb3148..57b2d0a 100644 --- a/src/northbridge/amd/amdfam10/ht_config.c +++ b/src/northbridge/amd/amdfam10/ht_config.c @@ -47,54 +47,51 @@ struct dram_base_mask_t get_dram_base_mask(u32 nodeid) return d; }
- -void set_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index, - u32 busn_min, u32 busn_max, u32 segbit, - u32 nodes) +void set_config_map_reg(struct bus *link) { u32 tempreg; u32 i; + u32 ht_c_index = get_ht_c_index(link); + u32 linkn = link->link_num & 0x0f; + u32 busn_min = (link->secondary >> sysconf.segbit) & 0xff; + u32 busn_max = (link->subordinate >> sysconf.segbit) & 0xff; + u32 nodeid = amdfam10_nodeid(link->dev);
- busn_min>>=segbit; - busn_max>>=segbit; + tempreg = ((nodeid & 0x30) << (12-4)) | ((nodeid & 0xf) << 4) | 3; + tempreg |= (busn_max << 24)|(busn_min << 16)|(linkn << 8);
- tempreg = 3 | ((nodeid&0xf)<<4) | ((nodeid & 0x30)<<(12-4))|(linkn<<8)|((busn_min & 0xff)<<16)|((busn_max&0xff)<<24); - for (i=0; i<nodes; i++) { + for (i=0; i < sysconf.nodes; i++) { device_t dev = __f1_dev[i]; pci_write_config32(dev, 0xe0 + ht_c_index * 4, tempreg); } }
-void clear_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index, - u32 busn_min, u32 busn_max, u32 nodes) +void clear_config_map_reg(struct bus *link) { u32 i; + u32 ht_c_index = get_ht_c_index(link);
- for (i=0; i<nodes; i++) { + for (i=0; i < sysconf.nodes; i++) { device_t dev = __f1_dev[i]; pci_write_config32(dev, 0xe0 + ht_c_index * 4, 0); } }
-u32 get_ht_c_index(u32 nodeid, u32 linkn, sys_info_conf_t *sysinfo) +static u32 ht_c_key(struct bus *link) { - u32 tempreg; - u32 ht_c_index = 0; + u32 nodeid = amdfam10_nodeid(link->dev); + u32 linkn = link->link_num & 0x0f; + u32 val = (linkn << 8) | ((nodeid & 0x3f) << 2) | 3; + return val; +}
-#if 0 - tempreg = 3 | ((nodeid & 0xf) <<4) | ((nodeid & 0x30)<<(12-4)) | (linkn<<8); +static u32 get_ht_c_index_by_key(u32 key, sys_info_conf_t *sysinfo) +{ + u32 ht_c_index = 0;
- for (ht_c_index=0;ht_c_index<4; ht_c_index++) { - reg = pci_read_config32(PCI_DEV(CONFIG_CBB, CONFIG_CDB, 1), 0xe0 + ht_c_index * 4); - if (((reg & 0xffff) == 0x0000)) { /*found free*/ - break; - } - } -#endif - tempreg = 3 | ((nodeid & 0x3f)<<2) | (linkn<<8); for (ht_c_index=0; ht_c_index<32; ht_c_index++) { - if ((sysinfo->ht_c_conf_bus[ht_c_index] & 0xfff) == tempreg) { + if ((sysinfo->ht_c_conf_bus[ht_c_index] & 0xfff) == key) { return ht_c_index; } } @@ -108,14 +105,26 @@ u32 get_ht_c_index(u32 nodeid, u32 linkn, sys_info_conf_t *sysinfo) return -1; }
-void store_ht_c_conf_bus(u32 nodeid, u32 linkn, u32 ht_c_index, - u32 busn_min, u32 busn_max, - sys_info_conf_t *sysinfo) +u32 get_ht_c_index(struct bus *link) { - u32 val; - val = 3 | ((nodeid & 0x3f)<<2) | (linkn<<8); - sysinfo->ht_c_conf_bus[ht_c_index] = val | ((busn_min & 0xff) <<12) | (busn_max<<20); // same node need segn are same + u32 val = ht_c_key(link); + return get_ht_c_index_by_key(val, &sysconf); +} + +void store_ht_c_conf_bus(struct bus *link) +{ + u32 val = ht_c_key(link); + u32 ht_c_index = get_ht_c_index_by_key(val, &sysconf); + + u32 segn = (link->subordinate >> 8) & 0x0f; + u32 busn_min = link->secondary & 0xff; + u32 busn_max = link->subordinate & 0xff; + + val |= (segn << 28) | (busn_max << 20) | (busn_min << 12);
+ sysconf.ht_c_conf_bus[ht_c_index] = val; + sysconf.hcdn_reg[ht_c_index] = link->hcdn_reg; + sysconf.ht_c_num++; }
u32 get_io_addr_index(u32 nodeid, u32 linkn) diff --git a/src/northbridge/amd/amdfam10/ht_config.h b/src/northbridge/amd/amdfam10/ht_config.h index 54356c1..c2d6c4c 100644 --- a/src/northbridge/amd/amdfam10/ht_config.h +++ b/src/northbridge/amd/amdfam10/ht_config.h @@ -20,6 +20,7 @@ typedef struct amdfam10_sysconf_t sys_info_conf_t;
/* FIXME */ +u32 amdfam10_nodeid(device_t dev); extern device_t __f1_dev[];
struct dram_base_mask_t { @@ -29,17 +30,11 @@ struct dram_base_mask_t {
struct dram_base_mask_t get_dram_base_mask(u32 nodeid);
-void set_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index, - u32 busn_min, u32 busn_max, u32 segbit, - u32 nodes); -void clear_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index, - u32 busn_min, u32 busn_max, u32 nodes); +u32 get_ht_c_index(struct bus *link); +void store_ht_c_conf_bus(struct bus *link);
-void store_ht_c_conf_bus(u32 nodeid, u32 linkn, u32 ht_c_index, - u32 busn_min, u32 busn_max, - sys_info_conf_t *sysinfo); - -u32 get_ht_c_index(u32 nodeid, u32 linkn, sys_info_conf_t *sysinfo); +void set_config_map_reg(struct bus *link); +void clear_config_map_reg(struct bus *link);
void store_conf_io_addr(u32 nodeid, u32 linkn, u32 reg, u32 index, diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index dfa1316..1c1dcf4 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -111,7 +111,7 @@ static void f1_write_config32(unsigned reg, u32 value) } }
-static u32 amdfam10_nodeid(device_t dev) +u32 amdfam10_nodeid(device_t dev) { #if NODE_NUMS == 64 unsigned busn; @@ -176,7 +176,6 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool
int i; - u32 ht_c_index; u32 ht_unitid_base[4]; // here assume only 4 HT device on chain u32 max_devfn;
@@ -188,9 +187,8 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool /* See if there is an available configuration space mapping * register in function 1. */ - ht_c_index = get_ht_c_index(nodeid, link->link_num, &sysconf); - - if(ht_c_index>=4) return max; + if (get_ht_c_index(link) >= 4) + return max;
/* Set up the primary, secondary and subordinate bus numbers. * We have no idea how many busses are behind this bridge yet, @@ -218,8 +216,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool ht_route_link(link);
/* set the config map space */ - - set_config_map_reg(nodeid, link->link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes); + set_config_map_reg(link);
/* Now we can scan all of the subordinate busses i.e. the * chain on the hypertranport link @@ -239,26 +236,22 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool /* We know the number of busses behind this bridge. Set the * subordinate bus number to it's real value */ - if(ht_c_index>3) { // clear the extend reg - clear_config_map_reg(nodeid, link->link_num, ht_c_index, (max+1)>>sysconf.segbit, (link->subordinate)>>sysconf.segbit, sysconf.nodes); - } - link->subordinate = max; - set_config_map_reg(nodeid, link->link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes); - sysconf.ht_c_num++;
- { - // use ht_unitid_base to update hcdn_reg - u32 temp = 0; - for(i=0;i<4;i++) { - temp |= (ht_unitid_base[i] & 0xff) << (i*8); - } + if (0) { + /* Clear the extend reg. */ + clear_config_map_reg(link); + }
- sysconf.hcdn_reg[ht_c_index] = temp; + set_config_map_reg(link);
- } - store_ht_c_conf_bus(nodeid, link->link_num, ht_c_index, link->secondary, link->subordinate, &sysconf); - return max; + /* Use ht_unitid_base to update hcdn_reg. */ + link->hcdn_reg = 0; + for (i = 0; i < 4;i++) + link->hcdn_reg |= (ht_unitid_base[i] & 0xff) << (i*8); + + store_ht_c_conf_bus(link); + return max; }
static unsigned amdfam10_scan_chains(device_t dev, unsigned max)