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fix(esp_hw_support): Use _iram_text_end instead of _iram_end for I/D-RAM split

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This commit is contained in:
harshal.patil 2024-08-26 22:28:25 +05:30
parent dbcff0e941
commit 95f286555a
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GPG Key ID: 5B5EC97C35B9A2E5
7 changed files with 21 additions and 12 deletions
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6
components/esp_hw_support/port/esp32c5/cpu_region_protect.c
View File

@ -94,7 +94,7 @@ void esp_cpu_configure_region_protection(void)
*
* 2. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT enabled
* - We split the SRAM into IRAM and DRAM such that IRAM region cannot be written to
* and DRAM region cannot be executed. We use _iram_end and _data_start markers to set the boundaries.
* and DRAM region cannot be executed. We use _iram_text_end and _data_start markers to set the boundaries.
* We also lock these entries so the R/W/X permissions are enforced even for machine mode
*
* 3. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT disabled
@ -142,7 +142,7 @@ void esp_cpu_configure_region_protection(void)
_Static_assert(SOC_IRAM_LOW < SOC_IRAM_HIGH, "Invalid RAM region");
} else {
#if CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT && !BOOTLOADER_BUILD
extern int _iram_end;
extern int _iram_text_end;
/* Reset the corresponding PMP config because PMP_ENTRY_SET only sets the given bits
* Bootloader might have given extra permissions and those won't be cleared
*/
@ -150,7 +150,7 @@ void esp_cpu_configure_region_protection(void)
PMP_ENTRY_CFG_RESET(6);
PMP_ENTRY_CFG_RESET(7);
PMP_ENTRY_SET(5, SOC_IRAM_LOW, NONE);
PMP_ENTRY_SET(6, (int)&_iram_end, PMP_TOR | RX);
PMP_ENTRY_SET(6, (int)&_iram_text_end, PMP_TOR | RX);
PMP_ENTRY_SET(7, SOC_DRAM_HIGH, PMP_TOR | RW);
#else
PMP_ENTRY_SET(5, SOC_IRAM_LOW, CONDITIONAL_NONE);

6
components/esp_hw_support/port/esp32c6/cpu_region_protect.c
View File

@ -88,7 +88,7 @@ void esp_cpu_configure_region_protection(void)
*
* 2. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT enabled
* - We split the SRAM into IRAM and DRAM such that IRAM region cannot be written to
* and DRAM region cannot be executed. We use _iram_end and _data_start markers to set the boundaries.
* and DRAM region cannot be executed. We use _iram_text_end and _data_start markers to set the boundaries.
* We also lock these entries so the R/W/X permissions are enforced even for machine mode
*
* 3. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT disabled
@ -136,7 +136,7 @@ void esp_cpu_configure_region_protection(void)
_Static_assert(SOC_IRAM_LOW < SOC_IRAM_HIGH, "Invalid RAM region");
} else {
#if CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT && !BOOTLOADER_BUILD
extern int _iram_end;
extern int _iram_text_end;
// 5. IRAM and DRAM
/* Reset the corresponding PMP config because PMP_ENTRY_SET only sets the given bits
* Bootloader might have given extra permissions and those won't be cleared
@ -145,7 +145,7 @@ void esp_cpu_configure_region_protection(void)
PMP_ENTRY_CFG_RESET(6);
PMP_ENTRY_CFG_RESET(7);
PMP_ENTRY_SET(5, SOC_IRAM_LOW, NONE);
PMP_ENTRY_SET(6, (int)&_iram_end, PMP_TOR | RX);
PMP_ENTRY_SET(6, (int)&_iram_text_end, PMP_TOR | RX);
PMP_ENTRY_SET(7, SOC_DRAM_HIGH, PMP_TOR | RW);
#else
// 5. IRAM and DRAM

6
components/esp_hw_support/port/esp32h2/cpu_region_protect.c
View File

@ -88,7 +88,7 @@ void esp_cpu_configure_region_protection(void)
*
* 2. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT enabled
* - We split the SRAM into IRAM and DRAM such that IRAM region cannot be written to
* and DRAM region cannot be executed. We use _iram_end and _data_start markers to set the boundaries.
* and DRAM region cannot be executed. We use _iram_text_end and _data_start markers to set the boundaries.
* We also lock these entries so the R/W/X permissions are enforced even for machine mode
*
* 3. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT disabled
@ -136,7 +136,7 @@ void esp_cpu_configure_region_protection(void)
_Static_assert(SOC_IRAM_LOW < SOC_IRAM_HIGH, "Invalid RAM region");
} else {
#if CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT && !BOOTLOADER_BUILD
extern int _iram_end;
extern int _iram_text_end;
// 5. IRAM and DRAM
/* Reset the corresponding PMP config because PMP_ENTRY_SET only sets the given bits
* Bootloader might have given extra permissions and those won't be cleared
@ -145,7 +145,7 @@ void esp_cpu_configure_region_protection(void)
PMP_ENTRY_CFG_RESET(6);
PMP_ENTRY_CFG_RESET(7);
PMP_ENTRY_SET(5, SOC_IRAM_LOW, NONE);
PMP_ENTRY_SET(6, (int)&_iram_end, PMP_TOR | RX);
PMP_ENTRY_SET(6, (int)&_iram_text_end, PMP_TOR | RX);
PMP_ENTRY_SET(7, SOC_DRAM_HIGH, PMP_TOR | RW);
#else
// 5. IRAM and DRAM

6
components/esp_hw_support/port/esp32p4/cpu_region_protect.c
View File

@ -113,7 +113,7 @@ void esp_cpu_configure_region_protection(void)
*
* 2. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT enabled
* - We split the SRAM into IRAM and DRAM such that IRAM region cannot be written to
* and DRAM region cannot be executed. We use _iram_end and _data_start markers to set the boundaries.
* and DRAM region cannot be executed. We use _iram_text_end and _data_start markers to set the boundaries.
* We also lock these entries so the R/W/X permissions are enforced even for machine mode
*
* 3. Application build with CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT disabled
@ -166,7 +166,7 @@ void esp_cpu_configure_region_protection(void)
_Static_assert(SOC_IRAM_LOW < SOC_IRAM_HIGH, "Invalid RAM region");
} else {
#if CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT && !BOOTLOADER_BUILD
extern int _iram_end;
extern int _iram_text_end;
// 4. IRAM and DRAM
/* Reset the corresponding PMP config because PMP_ENTRY_SET only sets the given bits
* Bootloader might have given extra permissions and those won't be cleared
@ -175,7 +175,7 @@ void esp_cpu_configure_region_protection(void)
PMP_ENTRY_CFG_RESET(4);
PMP_ENTRY_CFG_RESET(5);
PMP_ENTRY_SET(3, SOC_IRAM_LOW, NONE);
PMP_ENTRY_SET(4, (int)&_iram_end, PMP_TOR | RX);
PMP_ENTRY_SET(4, (int)&_iram_text_end, PMP_TOR | RX);
PMP_ENTRY_SET(5, SOC_DRAM_HIGH, PMP_TOR | RW);
#else
// 4. IRAM and DRAM

3
components/esp_system/ld/esp32c6/sections.ld.in
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@ -173,6 +173,9 @@ SECTIONS
/* Marks the end of IRAM code segment */
.iram0.text_end (NOLOAD) :
{
/* Align the end of code region as per PMP region granularity */
. = ALIGN(_esp_pmp_align_size);
ALIGNED_SYMBOL(4, _iram_text_end)
} > sram_seg

3
components/esp_system/ld/esp32c61/sections.ld.in
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@ -173,6 +173,9 @@ SECTIONS
/* Marks the end of IRAM code segment */
.iram0.text_end (NOLOAD) :
{
/* Align the end of code region as per PMP region granularity */
. = ALIGN(_esp_pmp_align_size);
ALIGNED_SYMBOL(4, _iram_text_end)
} > sram_seg

3
components/esp_system/ld/esp32h2/sections.ld.in
View File

@ -173,6 +173,9 @@ SECTIONS
/* Marks the end of IRAM code segment */
.iram0.text_end (NOLOAD) :
{
/* Align the end of code region as per PMP region granularity */
. = ALIGN(_esp_pmp_align_size);
ALIGNED_SYMBOL(4, _iram_text_end)
} > sram_seg