1 files changed, 70 insertions, 17 deletions

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 33bed5e67a21..6438cd5599ee 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -595,37 +595,89 @@ static char *symbol_string(char *buf, char *end, void *ptr,
 }
 
 static char *resource_string(char *buf, char *end, struct resource *res,
-                                struct printf_spec spec)
+                                struct printf_spec spec, const char *fmt)
 {
 #ifndef IO_RSRC_PRINTK_SIZE
-#define IO_RSRC_PRINTK_SIZE     4
+#define IO_RSRC_PRINTK_SIZE     6
 #endif
 
 #ifndef MEM_RSRC_PRINTK_SIZE
-#define MEM_RSRC_PRINTK_SIZE    8
+#define MEM_RSRC_PRINTK_SIZE    10
 #endif
-        struct printf_spec num_spec = {
+        struct printf_spec hex_spec = {
                 .base = 16,
                 .precision = -1,
                 .flags = SPECIAL | SMALL | ZEROPAD,
         };
-        /* room for the actual numbers, the two "0x", -, [, ] and the final zero */
-        char sym[4*sizeof(resource_size_t) + 8];
+        struct printf_spec dec_spec = {
+                .base = 10,
+                .precision = -1,
+                .flags = 0,
+        };
+        struct printf_spec str_spec = {
+                .field_width = -1,
+                .precision = 10,
+                .flags = LEFT,
+        };
+        struct printf_spec flag_spec = {
+                .base = 16,
+                .precision = -1,
+                .flags = SPECIAL | SMALL,
+        };
+
+        /* 32-bit res (sizeof==4): 10 chars in dec, 10 in hex ("0x" + 8)
+         * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */
+#define RSRC_BUF_SIZE           ((2 * sizeof(resource_size_t)) + 4)
+#define FLAG_BUF_SIZE           (2 * sizeof(res->flags))
+#define DECODED_BUF_SIZE        sizeof("[mem - 64bit pref disabled]")
+#define RAW_BUF_SIZE            sizeof("[mem - flags 0x]")
+        char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE,
+                     2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)];
+
         char *p = sym, *pend = sym + sizeof(sym);
-        int size = -1;
+        int size = -1, addr = 0;
+        int decode = (fmt[0] == 'R') ? 1 : 0;
 
-        if (res->flags & IORESOURCE_IO)
+        if (res->flags & IORESOURCE_IO) {
                 size = IO_RSRC_PRINTK_SIZE;
-        else if (res->flags & IORESOURCE_MEM)
+                addr = 1;
+        } else if (res->flags & IORESOURCE_MEM) {
                 size = MEM_RSRC_PRINTK_SIZE;
+                addr = 1;
+        }
 
         *p++ = '[';
-        num_spec.field_width = size;
-        p = number(p, pend, res->start, num_spec);
-        *p++ = '-';
-        p = number(p, pend, res->end, num_spec);
+        if (res->flags & IORESOURCE_IO)
+                p = string(p, pend, "io  ", str_spec);
+        else if (res->flags & IORESOURCE_MEM)
+                p = string(p, pend, "mem ", str_spec);
+        else if (res->flags & IORESOURCE_IRQ)
+                p = string(p, pend, "irq ", str_spec);
+        else if (res->flags & IORESOURCE_DMA)
+                p = string(p, pend, "dma ", str_spec);
+        else {
+                p = string(p, pend, "??? ", str_spec);
+                decode = 0;
+        }
+        hex_spec.field_width = size;
+        p = number(p, pend, res->start, addr ? hex_spec : dec_spec);
+        if (res->start != res->end) {
+                *p++ = '-';
+                p = number(p, pend, res->end, addr ? hex_spec : dec_spec);
+        }
+        if (decode) {
+                if (res->flags & IORESOURCE_MEM_64)
+                        p = string(p, pend, " 64bit", str_spec);
+                if (res->flags & IORESOURCE_PREFETCH)
+                        p = string(p, pend, " pref", str_spec);
+                if (res->flags & IORESOURCE_DISABLED)
+                        p = string(p, pend, " disabled", str_spec);
+        } else {
+                p = string(p, pend, " flags ", str_spec);
+                p = number(p, pend, res->flags, flag_spec);
+        }
         *p++ = ']';
-        *p = 0;
+        *p = '\0';
 
         return string(buf, end, sym, spec);
 }
@@ -801,8 +853,8 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr,
  * - 'f' For simple symbolic function names without offset
  * - 'S' For symbolic direct pointers with offset
  * - 's' For symbolic direct pointers without offset
- * - 'R' For a struct resource pointer, it prints the range of
- *       addresses (not the name nor the flags)
+ * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
+ * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
  * - 'M' For a 6-byte MAC address, it prints the address in the
  *       usual colon-separated hex notation
  * - 'm' For a 6-byte MAC address, it prints the hex address without colons
@@ -833,7 +885,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
         case 'S':
                 return symbol_string(buf, end, ptr, spec, *fmt);
         case 'R':
-                return resource_string(buf, end, ptr, spec);
+        case 'r':
+                return resource_string(buf, end, ptr, spec, fmt);
         case 'M':                       /* Colon separated: 00:01:02:03:04:05 */
         case 'm':                       /* Contiguous: 000102030405 */
                 return mac_address_string(buf, end, ptr, spec, fmt);