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arm: add error propagation to generic get_ttb fn

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Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
This commit is contained in:
Øyvind Harboe 2010-07-19 08:45:45 +02:00
parent 612184176f
commit 70fee9207b
8 changed files with 46 additions and 18 deletions
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16
src/target/arm720t.c
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@ -134,16 +134,24 @@ static int arm720t_write_cp15(struct target *target, uint32_t opcode, uint32_t v
return ERROR_OK;
}
static uint32_t arm720t_get_ttb(struct target *target)
static int arm720t_get_ttb(struct target *target, uint32_t *result)
{
uint32_t ttb = 0x0;
arm720t_read_cp15(target, 0xee120f10, &ttb);
jtag_execute_queue();
int retval;
retval = arm720t_read_cp15(target, 0xee120f10, &ttb);
if (retval != ERROR_OK)
return retval;
retval = jtag_execute_queue();
if (retval != ERROR_OK)
return retval;
ttb &= 0xffffc000;
return ttb;
*result = ttb;
return ERROR_OK;
}
static void arm720t_disable_mmu_caches(struct target *target,

5
src/target/arm920t.c
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@ -318,7 +318,7 @@ int arm920t_write_cp15_interpreted(struct target *target,
}
// EXPORTED to FA256
uint32_t arm920t_get_ttb(struct target *target)
int arm920t_get_ttb(struct target *target, uint32_t *result)
{
int retval;
uint32_t ttb = 0x0;
@ -328,7 +328,8 @@ uint32_t arm920t_get_ttb(struct target *target)
0xeebf0f51, 0x0, &ttb)) != ERROR_OK)
return retval;
return ttb;
*result = ttb;
return ERROR_OK;
}
// EXPORTED to FA256

2
src/target/arm920t.h
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@ -66,7 +66,7 @@ int arm920t_write_memory(struct target *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
void arm920t_post_debug_entry(struct target *target);
void arm920t_pre_restore_context(struct target *target);
uint32_t arm920t_get_ttb(struct target *target);
int arm920t_get_ttb(struct target *target, uint32_t *result);
void arm920t_disable_mmu_caches(struct target *target,
int mmu, int d_u_cache, int i_cache);
void arm920t_enable_mmu_caches(struct target *target,

6
src/target/arm926ejs.c
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@ -323,7 +323,7 @@ static int arm926ejs_examine_debug_reason(struct target *target)
return ERROR_OK;
}
static uint32_t arm926ejs_get_ttb(struct target *target)
static int arm926ejs_get_ttb(struct target *target, uint32_t *result)
{
struct arm926ejs_common *arm926ejs = target_to_arm926(target);
int retval;
@ -332,7 +332,9 @@ static uint32_t arm926ejs_get_ttb(struct target *target)
if ((retval = arm926ejs->read_cp15(target, 0, 0, 2, 0, &ttb)) != ERROR_OK)
return retval;
return ttb;
*result = ttb;
return ERROR_OK;
}
static void arm926ejs_disable_mmu_caches(struct target *target, int mmu,

5
src/target/armv4_5_mmu.c
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@ -30,8 +30,11 @@ int armv4_5_mmu_translate_va(struct target *target, struct armv4_5_mmu_common *a
{
uint32_t first_lvl_descriptor = 0x0;
uint32_t second_lvl_descriptor = 0x0;
uint32_t ttb = armv4_5_mmu->get_ttb(target);
uint32_t ttb;
int retval;
retval = armv4_5_mmu->get_ttb(target, &ttb);
if (retval != ERROR_OK)
return retval;
retval = armv4_5_mmu_read_physical(target, armv4_5_mmu,
(ttb & 0xffffc000) | ((va & 0xfff00000) >> 18),

2
src/target/armv4_5_mmu.h
View File

@ -26,7 +26,7 @@ struct target;
struct armv4_5_mmu_common
{
uint32_t (*get_ttb)(struct target *target);
int (*get_ttb)(struct target *target, uint32_t *result);
int (*read_memory)(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
int (*write_memory)(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
void (*disable_mmu_caches)(struct target *target, int mmu, int d_u_cache, int i_cache);

17
src/target/cortex_a8.c
View File

@ -62,7 +62,7 @@ static void cortex_a8_disable_mmu_caches(struct target *target, int mmu,
int d_u_cache, int i_cache);
static void cortex_a8_enable_mmu_caches(struct target *target, int mmu,
int d_u_cache, int i_cache);
static uint32_t cortex_a8_get_ttb(struct target *target);
static int cortex_a8_get_ttb(struct target *target, uint32_t *result);
/*
@ -1853,8 +1853,7 @@ static int cortex_a8_target_create(struct target *target, Jim_Interp *interp)
return cortex_a8_init_arch_info(target, cortex_a8, target->tap);
}
/* FIX! error propagation missing from this fn */
static uint32_t cortex_a8_get_ttb(struct target *target)
static int cortex_a8_get_ttb(struct target *target, uint32_t *result)
{
struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
@ -1869,6 +1868,8 @@ static uint32_t cortex_a8_get_ttb(struct target *target)
0, 1, /* op1, op2 */
2, 0, /* CRn, CRm */
&ttb);
if (retval != ERROR_OK)
return retval;
}
else if(cortex_a8->current_address_mode == ARM_MODE_USR)
{
@ -1877,6 +1878,8 @@ static uint32_t cortex_a8_get_ttb(struct target *target)
0, 0, /* op1, op2 */
2, 0, /* CRn, CRm */
&ttb);
if (retval != ERROR_OK)
return retval;
}
/* we don't know whose address is: user or kernel
we assume that if we are in kernel mode then
@ -1889,6 +1892,8 @@ static uint32_t cortex_a8_get_ttb(struct target *target)
0, 1, /* op1, op2 */
2, 0, /* CRn, CRm */
&ttb);
if (retval != ERROR_OK)
return retval;
}
else if(armv7a->armv4_5_common.core_mode == ARM_MODE_USR)
{
@ -1897,6 +1902,8 @@ static uint32_t cortex_a8_get_ttb(struct target *target)
0, 0, /* op1, op2 */
2, 0, /* CRn, CRm */
&ttb);
if (retval != ERROR_OK)
return retval;
}
/* finally we don't know whose ttb to use: user or kernel */
else
@ -1904,7 +1911,9 @@ static uint32_t cortex_a8_get_ttb(struct target *target)
ttb &= 0xffffc000;
return ttb;
*result = ttb;
return ERROR_OK;
}
/* FIX! error propagation missing from this fn */

11
src/target/xscale.c
View File

@ -2002,15 +2002,20 @@ static int xscale_bulk_write_memory(struct target *target, uint32_t address,
return xscale_write_memory(target, address, 4, count, buffer);
}
static uint32_t xscale_get_ttb(struct target *target)
static int xscale_get_ttb(struct target *target, uint32_t *result)
{
struct xscale_common *xscale = target_to_xscale(target);
uint32_t ttb;
int retval;
xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_TTB]);
retval = xscale_get_reg(&xscale->reg_cache->reg_list[XSCALE_TTB]);
if (retval != ERROR_OK)
return retval;
ttb = buf_get_u32(xscale->reg_cache->reg_list[XSCALE_TTB].value, 0, 32);
return ttb;
*result = ttb;
return ERROR_OK;
}
static void xscale_disable_mmu_caches(struct target *target, int mmu,