UPSTREAM: drm/rockchip: support non-iommu buffer path

[firefly-linux-kernel-4.4.55.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index dc6858d6639ed022d65129bdbb869ff7bcc05789..abb795e8a6f1f1e4f9c472577a3b41bdea37b6b1 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -104,6 +104,7 @@ extern char core_pattern[];
 extern unsigned int core_pipe_limit;
 #endif
 extern int pid_max;
+extern int extra_free_kbytes;
 extern int pid_max_min, pid_max_max;
 extern int percpu_pagelist_fraction;
 extern int compat_log;
@@ -303,6 +304,64 @@ static struct ctl_table kern_table[] = {
                .extra1         = &min_sched_granularity_ns,
                .extra2         = &max_sched_granularity_ns,
        },
+       {
+               .procname       = "sched_is_big_little",
+               .data           = &sysctl_sched_is_big_little,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+#ifdef CONFIG_SCHED_WALT
+       {
+               .procname       = "sched_use_walt_cpu_util",
+               .data           = &sysctl_sched_use_walt_cpu_util,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "sched_use_walt_task_util",
+               .data           = &sysctl_sched_use_walt_task_util,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "sched_walt_init_task_load_pct",
+               .data           = &sysctl_sched_walt_init_task_load_pct,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "sched_walt_cpu_high_irqload",
+               .data           = &sysctl_sched_walt_cpu_high_irqload,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+#endif
+       {
+               .procname       = "sched_sync_hint_enable",
+               .data           = &sysctl_sched_sync_hint_enable,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "sched_initial_task_util",
+               .data           = &sysctl_sched_initial_task_util,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
+       {
+               .procname       = "sched_cstate_aware",
+               .data           = &sysctl_sched_cstate_aware,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec,
+       },
        {
                .procname       = "sched_wakeup_granularity_ns",
                .data           = &sysctl_sched_wakeup_granularity,
@@ -434,6 +493,21 @@ static struct ctl_table kern_table[] = {
                .extra1         = &one,
        },
 #endif
+#ifdef CONFIG_SCHED_TUNE
+       {
+               .procname       = "sched_cfs_boost",
+               .data           = &sysctl_sched_cfs_boost,
+               .maxlen         = sizeof(sysctl_sched_cfs_boost),
+#ifdef CONFIG_CGROUP_SCHEDTUNE
+               .mode           = 0444,
+#else
+               .mode           = 0644,
+#endif
+               .proc_handler   = &sysctl_sched_cfs_boost_handler,
+               .extra1         = &zero,
+               .extra2         = &one_hundred,
+       },
+#endif
 #ifdef CONFIG_PROVE_LOCKING
        {
                .procname       = "prove_locking",
@@ -1392,6 +1466,14 @@ static struct ctl_table vm_table[] = {
                .proc_handler   = min_free_kbytes_sysctl_handler,
                .extra1         = &zero,
        },
+       {
+               .procname       = "extra_free_kbytes",
+               .data           = &extra_free_kbytes,
+               .maxlen         = sizeof(extra_free_kbytes),
+               .mode           = 0644,
+               .proc_handler   = min_free_kbytes_sysctl_handler,
+               .extra1         = &zero,
+       },
        {
                .procname       = "percpu_pagelist_fraction",
                .data           = &percpu_pagelist_fraction,
@@ -1568,6 +1650,28 @@ static struct ctl_table vm_table[] = {
                .mode           = 0644,
                .proc_handler   = proc_doulongvec_minmax,
        },
+#ifdef CONFIG_HAVE_ARCH_MMAP_RND_BITS
+       {
+               .procname       = "mmap_rnd_bits",
+               .data           = &mmap_rnd_bits,
+               .maxlen         = sizeof(mmap_rnd_bits),
+               .mode           = 0600,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = (void *)&mmap_rnd_bits_min,
+               .extra2         = (void *)&mmap_rnd_bits_max,
+       },
+#endif
+#ifdef CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
+       {
+               .procname       = "mmap_rnd_compat_bits",
+               .data           = &mmap_rnd_compat_bits,
+               .maxlen         = sizeof(mmap_rnd_compat_bits),
+               .mode           = 0600,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = (void *)&mmap_rnd_compat_bits_min,
+               .extra2         = (void *)&mmap_rnd_compat_bits_max,
+       },
+#endif
        { }
 };
 
@@ -1735,6 +1839,20 @@ static struct ctl_table fs_table[] = {
                .proc_handler   = &pipe_proc_fn,
                .extra1         = &pipe_min_size,
        },
+       {
+               .procname       = "pipe-user-pages-hard",
+               .data           = &pipe_user_pages_hard,
+               .maxlen         = sizeof(pipe_user_pages_hard),
+               .mode           = 0644,
+               .proc_handler   = proc_doulongvec_minmax,
+       },
+       {
+               .procname       = "pipe-user-pages-soft",
+               .data           = &pipe_user_pages_soft,
+               .maxlen         = sizeof(pipe_user_pages_soft),
+               .mode           = 0644,
+               .proc_handler   = proc_doulongvec_minmax,
+       },
        { }
 };
 
@@ -2037,6 +2155,21 @@ static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
        return 0;
 }
 
+static int do_proc_douintvec_conv(bool *negp, unsigned long *lvalp,
+                                int *valp,
+                                int write, void *data)
+{
+       if (write) {
+               if (*negp)
+                       return -EINVAL;
+               *valp = *lvalp;
+       } else {
+               unsigned int val = *valp;
+               *lvalp = (unsigned long)val;
+       }
+       return 0;
+}
+
 static const char proc_wspace_sep[] = { ' ', '\t', '\n' };
 
 static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table,
@@ -2164,8 +2297,27 @@ static int do_proc_dointvec(struct ctl_table *table, int write,
 int proc_dointvec(struct ctl_table *table, int write,
                     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-    return do_proc_dointvec(table,write,buffer,lenp,ppos,
-                           NULL,NULL);
+       return do_proc_dointvec(table, write, buffer, lenp, ppos, NULL, NULL);
+}
+
+/**
+ * proc_douintvec - read a vector of unsigned integers
+ * @table: the sysctl table
+ * @write: %TRUE if this is a write to the sysctl file
+ * @buffer: the user buffer
+ * @lenp: the size of the user buffer
+ * @ppos: file position
+ *
+ * Reads/writes up to table->maxlen/sizeof(unsigned int) unsigned integer
+ * values from/to the user buffer, treated as an ASCII string.
+ *
+ * Returns 0 on success.
+ */
+int proc_douintvec(struct ctl_table *table, int write,
+                    void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+       return do_proc_dointvec(table, write, buffer, lenp, ppos,
+                               do_proc_douintvec_conv, NULL);
 }
 
 /*
@@ -2778,6 +2930,12 @@ int proc_dointvec(struct ctl_table *table, int write,
        return -ENOSYS;
 }
 
+int proc_douintvec(struct ctl_table *table, int write,
+                 void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+       return -ENOSYS;
+}
+
 int proc_dointvec_minmax(struct ctl_table *table, int write,
                    void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -2823,6 +2981,7 @@ int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write,
  * exception granted :-)
  */
 EXPORT_SYMBOL(proc_dointvec);
+EXPORT_SYMBOL(proc_douintvec);
 EXPORT_SYMBOL(proc_dointvec_jiffies);
 EXPORT_SYMBOL(proc_dointvec_minmax);
 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);