Use tf_printf() for debug logs from xlat_tables.c

The debug prints used to debug translation table setup in xlat_tables.c
used the `printf()` standard library function instead of the stack
optimized `tf_printf()` API. DEBUG_XLAT_TABLE option was used to enable
debug logs within xlat_tables.c and it configured a much larger stack
size for the platform in case it was enabled. This patch modifies these
debug prints within xlat_tables.c to use tf_printf() and modifies the format
specifiers to be compatible with tf_printf(). The debug prints are now enabled
if the VERBOSE prints are enabled in Trusted Firmware via LOG_LEVEL build
option.

The much larger stack size definition when DEBUG_XLAT_TABLE is defined
is no longer required and the platform ports are modified to remove this
stack size definition.

Change-Id: I2f7d77ea12a04b827fa15e2adc3125b1175e4c23

4 files changed, 19 insertions, 22 deletions

diff --git a/include/plat/arm/board/common/board_arm_def.h b/include/plat/arm/board/common/board_arm_def.h
index b4e431348..db2a8dfb0 100644
--- a/include/plat/arm/board/common/board_arm_def.h
+++ b/include/plat/arm/board/common/board_arm_def.h
@@ -39,9 +39,7 @@
  */
 
 /* Size of cacheable stacks */
-#if DEBUG_XLAT_TABLE
-# define PLATFORM_STACK_SIZE 0x800
-#elif IMAGE_BL1
+#if IMAGE_BL1
 #if TRUSTED_BOARD_BOOT
 # define PLATFORM_STACK_SIZE 0x1000
 #else
diff --git a/lib/aarch64/xlat_tables.c b/lib/aarch64/xlat_tables.c
index b00dc0be1..2f2ca814e 100644
--- a/lib/aarch64/xlat_tables.c
+++ b/lib/aarch64/xlat_tables.c
@@ -33,17 +33,21 @@
 #include <assert.h>
 #include <bl_common.h>
 #include <cassert.h>
+#include <debug.h>
 #include <platform_def.h>
 #include <string.h>
 #include <xlat_tables.h>
 
-
-#ifndef DEBUG_XLAT_TABLE
-#define DEBUG_XLAT_TABLE 0
-#endif
-
-#if DEBUG_XLAT_TABLE
-#define debug_print(...) printf(__VA_ARGS__)
+#if LOG_LEVEL >= LOG_LEVEL_VERBOSE
+#define LVL0_SPACER ""
+#define LVL1_SPACER "  "
+#define LVL2_SPACER "    "
+#define LVL3_SPACER "      "
+#define get_level_spacer(level)		\
+			(((level) == 0) ? LVL0_SPACER : \
+			(((level) == 1) ? LVL1_SPACER : \
+			(((level) == 2) ? LVL2_SPACER : LVL3_SPACER)))
+#define debug_print(...) tf_printf(__VA_ARGS__)
 #else
 #define debug_print(...) ((void)0)
 #endif
@@ -74,12 +78,12 @@ static mmap_region_t mmap[MAX_MMAP_REGIONS + 1];
 
 static void print_mmap(void)
 {
-#if DEBUG_XLAT_TABLE
+#if LOG_LEVEL >= LOG_LEVEL_VERBOSE
 	debug_print("mmap:\n");
 	mmap_region_t *mm = mmap;
 	while (mm->size) {
-		debug_print(" %010lx %010lx %10lx %x\n", mm->base_va,
-					mm->base_pa, mm->size, mm->attr);
+		debug_print(" VA:0x%lx  PA:0x%lx  size:0x%lx  attr:0x%x\n",
+				mm->base_va, mm->base_pa, mm->size, mm->attr);
 		++mm;
 	};
 	debug_print("\n");
@@ -209,8 +213,8 @@ static mmap_region_t *init_xlation_table(mmap_region_t *mm,
 			continue;
 		}
 
-		debug_print("      %010lx %8lx " + 6 - 2 * level, base_va,
-				level_size);
+		debug_print("%s VA:0x%lx size:0x%x ", get_level_spacer(level),
+				base_va, level_size);
 
 		if (mm->base_va >= base_va + level_size) {
 			/* Next region is after area so nothing to map yet */
diff --git a/plat/mediatek/mt8173/include/platform_def.h b/plat/mediatek/mt8173/include/platform_def.h
index 7759b3eea..0573bc5e8 100644
--- a/plat/mediatek/mt8173/include/platform_def.h
+++ b/plat/mediatek/mt8173/include/platform_def.h
@@ -31,7 +31,6 @@
 #ifndef __PLATFORM_DEF_H__
 #define __PLATFORM_DEF_H__
 
-#define DEBUG_XLAT_TABLE 0
 
 /*******************************************************************************
  * Platform binary types for linking
@@ -44,9 +43,7 @@
  ******************************************************************************/
 
 /* Size of cacheable stacks */
-#if DEBUG_XLAT_TABLE
-#define PLATFORM_STACK_SIZE 0x800
-#elif IMAGE_BL1
+#if IMAGE_BL1
 #define PLATFORM_STACK_SIZE 0x440
 #elif IMAGE_BL2
 #define PLATFORM_STACK_SIZE 0x400
diff --git a/plat/nvidia/tegra/include/platform_def.h b/plat/nvidia/tegra/include/platform_def.h
index 2a7935fd0..70ddaa9a1 100644
--- a/plat/nvidia/tegra/include/platform_def.h
+++ b/plat/nvidia/tegra/include/platform_def.h
@@ -40,9 +40,7 @@
  ******************************************************************************/
 
 /* Size of cacheable stacks */
-#if DEBUG_XLAT_TABLE
-#define PLATFORM_STACK_SIZE 0x800
-#elif IMAGE_BL31
+#if IMAGE_BL31
 #define PLATFORM_STACK_SIZE 0x400
 #endif