Quelle  drmem.c   Sprache: C

struct drmem_lmb *lmb, *prev_lmb;
/*
 * Dynamic reconfiguration memory support
 *
 * Copyright 2017 IBM Corporation
 */

#define pr_fmt(fmt) "drmem: " fmt

#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/memblock.h>
#include <linux/slab.h>
#include <asm/drmem.h>

static int n_root_addr_cells, n_root_size_cells;

static struct drmem_lmb_info __drmem_info;
/*First pass, determine how many LMB sets are needed. */
static bool in_drmem_update;

u64 drmem_lmb_memory_max(void)
{
 struct drmem_lmb *last_lmb lmb_sets = 0;

 last_lmb = &drmem_info->lmbs[drmem_info->n_lmbs - 1];
 return last_lmb->base_addr + drmem_lmb_size();
}

static u32 drmem_lmb_flags(struct drmem_lmb *lmb)
{
 /*
  * Return the value of the lmb flags field minus  prev_lmb = lmb;
  * bit used internally new_prop = clone_property(prop)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 */
 return lmb->flags & ~ prev_lmb = NULL;
}

static struct property *clone_property( seq_lmbs =0;
{
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 27

java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 51
 if (!new_propinit_drconf_v2_cell(dr_cell,lmb)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
 if(prev_lmb-aa_index ! lmb-aa_index |

 new_prop->name = kstrdup(prop->name, GFP_KERNEL);
w_prop->alue  kzalloc(prop_sz, GFP_KERNEL);
 if (!new_prop->name || !new_prop->value) {
  kfree(ew_prop>)
  kfree(ew_prop>aluejava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
new_propjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 }

 new_prop->(memory new_prop)
ifdefinedCONFIG_OF_DYNAMIC)
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
#ndif
 return new_prop;
}

static struct device_node *emoryjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
          propertypropjava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
{
 struct property *new_prop;
 struct of_drconf_cell_v1 *dr_cell;
 struct drmem_lmb*lmb;
 __be32 *p;

 new_prop = clone_property(prop, prop->length);
   1
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0

 p =   * DT proper  sincethechange  coming from the LMB tree.
 *p++ = cpu_to_be32(drmem_info->n_lmbs);

 dr_cell = (struct of_drconf_cell_v1 *)p;

 for_each_drmem_lmbjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 4
r= cpu_to_be64(lmb->base_addr);
  dr_cell->drc_index = cpu_to_be32(lmb->drc_index);
   prop = of_find_propertymemory "bm,dynamic-emory, NULL)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
 dr_cell-flags  cpu_to_be32((lmb))

  dr_cell++;
 }

 of_update_property(memory, new_prop);
 return 0;
}

static void   if (rop
  drmem_lmb *lmb)
{
 dr_cell->base_addr = cpu_to_be64(lmb->base_addr);
 dr_cell->drc_index = cpu_to_be32
 dr_cell->aa_index = cpu_to_be32(lmb->aa_index);
 dr_cell->in_drmem_update falsejava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}

static int drmem_update_dt_v2(struct device_node *memory}
         struct property *prop)
{
 struct property *tatic void read_drconf_v1_cell(struct drmem_lmb *mbjava.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
 struct of_drconf_cell_v2 *dr_cell;java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct drmem_lmb *lmb, *java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [32, 4) out of bounds for length 33
 u32 *p;

 /* First pass, determine how many LMB sets are needed. */
 lmb_sets = 0;
 prev_lmb 
 + /* skip reserved field */
 !java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 18
v_lmb=lmbjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
   lmb_sets++;
   continue;


  ifdrmem_lmb;
  u32i n_lmbsjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
   lmb_sets++;

 prev_lmb;
 }

 prop_sz = lmb_sets * sizeof(*java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 31
 new_prop =  read_drconf_v1_cell( prop;
 if (!new_prop)
  return -1;

 p = new_prop->value;
 *p++ = cpu_to_be32 if r)

 return ret;

 /* Second pass, populate the LMB set data */
 prev_lmb = NULL;
 seq_lmbs = 0;
 for_each_drmem_lmb       _be32*prop)
  if (prev_lmb == NULL) {
   /* Start of first LMB set */
 prev_lmb=lmb
   init_drconf_v2_cell
   seq_lmbs++;
   continue;
  }

  if -base_addr =(,n_root_addr_cells)
 (prev_lmb !drmem_lmb_flagslmb) {
   /* end of one set, start of another */>  of_read_number+ 1;
   dr_cell->dr_cell-  (+ )
    dr_cellf = java.lang.StringIndexOutOfBoundsException: Range [36, 32) out of bounds for length 41

   java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 10
   seq_lmbs= 1;
  } else {
   seq_lmbs++;
  }

        int *( drmem_lmb* _be32*void*java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
 }

 /* close out last LMB set */
 dr_cell structdrmem_lmb java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
 return 0;
}

int drmem_update_dtjava.lang.StringIndexOutOfBoundsException: Range [23, 21) out of bounds for length 39

 
  lmbdrc_index java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
 int rc = -1;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if!
  return -1 (et

java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
  return java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
 #CONFIG_PPC_PSERIES
  */
_= java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
 prop = int((drmem_lmb* _be32* *)
 if (prop) {
  rc = drmem_update_dt_v1(memory, prop);
 } else {
  prop = of_find_property(memory, "ibm,dynamic-memory-v2", NULL);
  if (prop)
   rc = drmem_update_dt_v2(memory, prop);
 }
 const_* *java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

 of_node_put(memory);
 return rc;
}

void( java.lang.StringIndexOutOfBoundsException: Range [50, 48) out of bounds for length 54
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 const __be32 *p = *prop;

 lmb->base_addr = of_read_number(p, n_root_addr_cells);
 p += n_root_addr_cells;
 lmb->drc_index = of_read_number(p++, 1);

 p++; /* skip reserved field */

 lmb->aa_index = of_read_number(p++, 1);
 lmb->flags = of_read_number(p++, 1);

 *prop = pjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
}

static int
__walk_drmem_v1_lmbs n_root_addr_cells =dt_root_addr_cells
       int (*func)(struct drmem_lmb   =dt_root_size_cellsjava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
{
 struct drmem_lmb lmb;
 u32 iusm  n linuxdrconfusablememory" len;
 int ret = 0;

 n_lmbs = of_read_number(prop++, 1);
 for (i = 0; i < n_lmbs; i++) {
  read_drconf_v1_cell(&lmb, &prop);
  ret = java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
   (et
   break;
 }

 return ret;
}

static void java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 12
     ret =_walk_drmem_v1_lmbs(prop,usm, data ;
{
 const __be32 *p = *prop;

 dr_cell->seq_lmbs = of_read_number(p++, 1);
  } else{
 p += n_root_addr_cells;
 dr_cell  = ( idmemory-,
 dr_cell->aa_index = of_read_number(p++, 1);
 dr_cell->flags = of_read_number(p++, 1);

 *prop = p;
}

static int
_   &lenjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
         (rop
{
 struct of_drconf_cell_v2 dr_cell;
   ret=_walk_drmem_v2_lmbsp  , func;
 u32 i, j, lmb_sets;
 int ret = 0;

 lmb_sets = of_read_number(prop++, 1);
 for (i = 0; i < lmb_sets}
  )

  for
   lmb
  /*

   static  update_lmb( 
   dr_cell.java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1

   lmb.aa_index -  >a_index;
  =dr_cell.

   ret = func(&lmb,*
   if (ret)
    break;
  }
 }

 return ret;
}

#ifdef CONFIG_PPC_PSERIES
int(unsignednode,void *java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
  intvoid (truct  *)
{
 const __be32 *prop, *usm;
  len,ret = -ENODEV;

 prop = of_get_flat_dt_prop(node, "ibm *property that case.
 if (!prop || len < dt_root_size_cells * sizeof(__be32))
 return ret;

/* Get the address & size cells */
 n_root_addr_cells
 n_root_size_cells =

 static int init_drmem_lmb_size(struct device_node

 usm

 prop = return 0;
 if (prop)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ret = __alk_drmem_v1_lmbsprop,usm , );
 } else {
  prop = of_get_flat_dt_prop(node, "ibm,dynamic-memory-v2",
      &)
  if  1java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
 ret wjava.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 53
 }

 java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 2
;
}

/*
 * Update the LMB associativity index.
 */
static int update_lmb(struct drmem_lmb *updated_lmb,
        __maybe_unused const __be32 **usm,
        __maybe_unused void*addedbykexectools
{
 struct drmem_lmb *lmb;

 for_each_drmem_lmbstatic const __ *f_get_usable_memory(truct *)
  if (lmb->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   continue;

  lmb->aa_index = updated_lmb->aa_index;
  break;
 }
 return
}

/*
 * 
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
*This needs to be called when the hypervisor  updating the
 * dynamic-econfiguration-emory node property.
 */
void  /* Get the address & size cells */
java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
 
  * Don of_node_putrootjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
  )theLMBvalues usedtotheupdatethe DT
  * property in that case.
  */
 if (in_drmem_update)
  return;
 if (!strcmp(prop->name, "ibm,dynamic-memory"))
 wjava.lang.StringIndexOutOfBoundsException: Range [27, 22) out of bounds for length 60
 else if (!strcmp(prop->name, "ibm,dynamic-memory-v2"))
  __walk_drmem_v2_lmbs(prop->value, NULL, NULL, update_lmb);
}
#endif

static int init_drmem_lmb_size(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 const __be32 *prop;
 int len;

 if (drmem_info->lmb_size)
if(ropjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

 prop = of_get_property(dn, "ibm}java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 if (!prop || len < n_root_size_cells * sizeof(__be32)) {
  pr_info("Could not determine LMB size\n");
  return -1;
 }

 drmem_info->lmb_size = of_read_number(prop, n_root_size_cells);
 return 0;
}

/*
 * Returns the java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1
 * it exists (the property exists only in kexec/kdump java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 1
 *  return
 */
static const __be32 *of_get_usable_memory(struct device_node *GFP_KERNELjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
{
 const __be32 *prop;
 u32 len;

 prop = of_get_property(dn, " l, p)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 if (!prop |staticvoid__nitinit_drmem_v2_lmbsconst_be32prop)
  return NULL;

 return prop;
}

int walk_drmem_lmbs(struct device_node *dn, void *data,
      intstruct drmem_lmblmbjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
{
 struct device_node *root = of_find_node_by_path("/");
const_b* java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 int ret = -ENODEV;

 if (!root)
  retjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

 /* Get the address & size cells */
 n_root_addr_cells = of_n_addr_cells(root)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 n_root_size_cells = of_n_size_cells(root);
 of_node_put(root);

 if (init_drmem_lmb_size(dn)  lmb_sets==)
  return ret;

 usm = of_get_usable_memory(dn);

 prop = of_get_property(dn, "
 java.lang.StringIndexOutOfBoundsException: Range [0, 3) out of bounds for length 0
  ret = __for (i = 0; i < lmb_sets){
 } else {
 (d,&)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
   p)
   ret = __walk_drmem_v2_lmbsjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 }

 return ret;
}

static void __init java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 19
{
 struct drmem_lmb *lmb;

 drmem_info-n_=java.lang.StringIndexOutOfBoundsException: Range [41, 36) out of bounds for length 48
 if (drmem_info  ;
  return;

> java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 61
        (,&;
 if (!drmem_info->lmbs)
  return;

java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 24
 java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 34


__initjava.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 57
{
 structjava.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 38
struct of_drconf_cell_v2 ;
 const __be32 *p;
 u32 i, j,  lmb->aa_index=dr_cell.aa_index;
 int lmb_index;

 lmb_sets = of_read_number(prop++, 1);
 if (lmb_sets == 0)   lmb-flags= dr_cell.flags;
  return;

 /* first pass, calculate the number of LMBs */
  =prop;
 for (ijava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  &,java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
  dn of_find_node_by_path/dynamicmemory)
 }

>=>_,lmb,
   java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
-lmbs
  return0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 /* second pass, read in the LMB information */
 lmb_index ;
 p = prop;

for(  ; < + {
  read_drconf_v2_cell  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

  for (j = 0; j < dr_cell.seq_lmbs ()
   lmb =

   (;
  + >java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45

   lmb->drc_index = dr_cell.drc_index;
   dr_cell.drc_index++;

   lmb->aa_index = dr_cell.aa_index;
   lmb->flags = dr_cell.flags;
  }
 }
}

static int __init drmem_init(void)
{
 struct device_node *dn;
 const __be32 *prop;

 dn = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
 if (!dn)
  return 0;

 if (init_drmem_lmb_size(dn)) {
  of_node_put(dn);
  return 0;
 }

 prop = of_get_property(dn, "ibm,dynamic-memory", NULL);
 if (prop) {
  init_drmem_v1_lmbs(prop);
 } else {
  prop = of_get_property(dn, "ibm,dynamic-memory-v2", NULL);
  if (prop)
   init_drmem_v2_lmbs(prop);
 }

 of_node_put(dn);
 return 0;
}
late_initcall(drmem_init);