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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ipmi_si: Switch hotmod to use a platform device
Don't force the main code to create one for it. Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Corey Minyard
parent
3cd83bac48
commit
3bb8ea400c
@ -10,7 +10,9 @@
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#include <linux/moduleparam.h>
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#include <linux/ipmi.h>
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#include <linux/atomic.h>
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#include "ipmi_si.h"
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#include "ipmi_plat_data.h"
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static int hotmod_handler(const char *val, const struct kernel_param *kp);
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@ -54,8 +56,8 @@ static const struct hotmod_vals hotmod_as[] = {
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{ NULL }
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};
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static int parse_str(const struct hotmod_vals *v, int *val, char *name,
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char **curr)
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static int parse_str(const struct hotmod_vals *v, unsigned int *val, char *name,
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const char **curr)
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{
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char *s;
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int i;
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@ -80,7 +82,7 @@ static int parse_str(const struct hotmod_vals *v, int *val, char *name,
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}
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static int check_hotmod_int_op(const char *curr, const char *option,
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const char *name, int *val)
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const char *name, unsigned int *val)
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{
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char *n;
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@ -99,22 +101,93 @@ static int check_hotmod_int_op(const char *curr, const char *option,
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return 0;
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}
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static int parse_hotmod_str(const char *curr, enum hotmod_op *op,
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struct ipmi_plat_data *h)
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{
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char *s, *o;
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int rv;
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unsigned int ival;
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rv = parse_str(hotmod_ops, &ival, "operation", &curr);
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if (rv)
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return rv;
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*op = ival;
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rv = parse_str(hotmod_si, &ival, "interface type", &curr);
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if (rv)
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return rv;
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h->type = ival;
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rv = parse_str(hotmod_as, &ival, "address space", &curr);
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if (rv)
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return rv;
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h->space = ival;
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s = strchr(curr, ',');
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if (s) {
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*s = '\0';
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s++;
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}
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rv = kstrtoul(curr, 0, &h->addr);
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if (rv) {
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pr_warn("Invalid hotmod address '%s': %d\n", curr, rv);
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return rv;
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}
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while (s) {
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curr = s;
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s = strchr(curr, ',');
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if (s) {
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*s = '\0';
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s++;
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}
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o = strchr(curr, '=');
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if (o) {
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*o = '\0';
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o++;
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}
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rv = check_hotmod_int_op(curr, o, "rsp", &h->regspacing);
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if (rv < 0)
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return rv;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsi", &h->regsize);
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if (rv < 0)
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return rv;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsh", &h->regshift);
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if (rv < 0)
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return rv;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "irq", &h->irq);
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if (rv < 0)
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return rv;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "ipmb", &h->slave_addr);
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if (rv < 0)
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return rv;
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else if (rv)
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continue;
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pr_warn("Invalid hotmod option '%s'\n", curr);
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return -EINVAL;
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}
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h->addr_source = SI_HOTMOD;
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return 0;
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}
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static atomic_t hotmod_nr;
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static int hotmod_handler(const char *val, const struct kernel_param *kp)
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{
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char *str = kstrdup(val, GFP_KERNEL);
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char *str = kstrdup(val, GFP_KERNEL), *curr, *next;
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int rv;
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char *next, *curr, *s, *n, *o;
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enum hotmod_op op;
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enum si_type si_type;
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enum ipmi_addr_space addr_space;
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unsigned long addr;
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int regspacing;
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int regsize;
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int regshift;
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int irq;
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int ipmb;
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int ival;
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int len;
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struct ipmi_plat_data h;
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unsigned int len, ival;
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if (!str)
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return -ENOMEM;
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@ -128,11 +201,7 @@ static int hotmod_handler(const char *val, const struct kernel_param *kp)
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}
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for (curr = str; curr; curr = next) {
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regspacing = 1;
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regsize = 1;
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regshift = 0;
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irq = 0;
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ipmb = 0; /* Choose the default if not specified */
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enum hotmod_op op;
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next = strchr(curr, ':');
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if (next) {
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@ -140,102 +209,17 @@ static int hotmod_handler(const char *val, const struct kernel_param *kp)
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next++;
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}
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rv = parse_str(hotmod_ops, &ival, "operation", &curr);
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memset(&h, 0, sizeof(h));
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rv = parse_hotmod_str(curr, &op, &h);
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if (rv)
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break;
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op = ival;
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rv = parse_str(hotmod_si, &ival, "interface type", &curr);
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if (rv)
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break;
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si_type = ival;
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rv = parse_str(hotmod_as, &ival, "address space", &curr);
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if (rv)
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break;
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addr_space = ival;
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s = strchr(curr, ',');
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if (s) {
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*s = '\0';
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s++;
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}
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addr = simple_strtoul(curr, &n, 0);
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if ((*n != '\0') || (*curr == '\0')) {
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pr_warn("Invalid hotmod address '%s'\n", curr);
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break;
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}
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while (s) {
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curr = s;
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s = strchr(curr, ',');
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if (s) {
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*s = '\0';
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s++;
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}
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o = strchr(curr, '=');
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if (o) {
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*o = '\0';
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o++;
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}
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rv = check_hotmod_int_op(curr, o, "rsp", ®spacing);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsi", ®size);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsh", ®shift);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "irq", &irq);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "ipmb", &ipmb);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = -EINVAL;
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pr_warn("Invalid hotmod option '%s'\n", curr);
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goto out;
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}
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if (op == HM_ADD) {
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struct si_sm_io io;
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memset(&io, 0, sizeof(io));
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io.addr_source = SI_HOTMOD;
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io.si_type = si_type;
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io.addr_data = addr;
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io.addr_space = addr_space;
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io.addr = NULL;
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io.regspacing = regspacing;
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if (!io.regspacing)
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io.regspacing = DEFAULT_REGSPACING;
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io.regsize = regsize;
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if (!io.regsize)
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io.regsize = DEFAULT_REGSIZE;
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io.regshift = regshift;
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io.irq = irq;
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if (io.irq)
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io.irq_setup = ipmi_std_irq_setup;
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io.slave_addr = ipmb;
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rv = ipmi_si_add_smi(&io);
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if (rv)
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goto out;
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ipmi_platform_add("hotmod-ipmi-si",
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atomic_inc_return(&hotmod_nr),
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&h);
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} else {
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ipmi_si_remove_by_data(addr_space, si_type, addr);
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ipmi_si_remove_by_data(h.space, h.type, h.addr);
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}
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}
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rv = len;
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@ -1870,7 +1870,7 @@ int ipmi_si_add_smi(struct si_sm_io *io)
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* address, they presumably want us to use it and not what is
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* in the firmware.
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*/
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if (io->addr_source != SI_HARDCODED &&
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if (io->addr_source != SI_HARDCODED && io->addr_source != SI_HOTMOD &&
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ipmi_si_hardcode_match(io->addr_space, io->addr_data)) {
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dev_info(io->dev,
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"Hard-coded device at this address already exists");
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@ -431,6 +431,7 @@ static int ipmi_remove(struct platform_device *pdev)
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static const struct platform_device_id si_plat_ids[] = {
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{ "dmi-ipmi-si", 0 },
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{ "hardcode-ipmi-si", 0 },
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{ "hotmod-ipmi-si", 0 },
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{ }
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};
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