armv7a: ARMv7-A MMU tools
[openocd.git] / src / target / armv7a.h
index 663e5d92d14237eeca437fd5c6646e7da99ef0d7..1e88c98cf774e631d081e42855d2d96d7a446803 100644 (file)
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
-#ifndef ARMV7A_H
-#define ARMV7A_H
 
-#include <target/arm_adi_v5.h>
-#include <target/arm.h>
-#include <target/armv4_5_mmu.h>
-#include <target/armv4_5_cache.h>
-#include <target/arm_dpm.h>
+#ifndef OPENOCD_TARGET_ARMV7A_H
+#define OPENOCD_TARGET_ARMV7A_H
 
-enum
-{
+#include "arm_adi_v5.h"
+#include "armv7a_cache.h"
+#include "arm.h"
+#include "armv4_5_mmu.h"
+#include "armv4_5_cache.h"
+#include "arm_dpm.h"
+
+enum {
        ARM_PC  = 15,
        ARM_CPSR = 16
-}
-;
+};
 
 #define ARMV7_COMMON_MAGIC 0x0A450999
 
@@ -43,40 +41,103 @@ enum
 #define V2POWPW  5
 #define V2POWUR  6
 #define V2POWUW  7
+/*   L210/L220 cache controller support */
+struct armv7a_l2x_cache {
+       uint32_t base;
+       uint32_t way;
+};
 
-struct armv7a_common
-{
-       struct arm armv4_5_common;
+struct armv7a_cachesize {
+       /*  cache dimensionning */
+       uint32_t linelen;
+       uint32_t associativity;
+       uint32_t nsets;
+       uint32_t cachesize;
+       /* info for set way operation on cache */
+       uint32_t index;
+       uint32_t index_shift;
+       uint32_t way;
+       uint32_t way_shift;
+};
+
+/* information about one architecture cache at any level */
+struct armv7a_arch_cache {
+       int ctype;                              /* cache type, CLIDR encoding */
+       struct armv7a_cachesize d_u_size;       /* data cache */
+       struct armv7a_cachesize i_size;         /* instruction cache */
+};
+
+/* common cache information */
+struct armv7a_cache_common {
+       int info;                               /* -1 invalid, else valid */
+       int loc;                                /* level of coherency */
+       uint32_t dminline;                      /* minimum d-cache linelen */
+       uint32_t iminline;                      /* minimum i-cache linelen */
+       struct armv7a_arch_cache arch[6];       /* cache info, L1 - L7 */
+       int i_cache_enabled;
+       int d_u_cache_enabled;
+       int auto_cache_enabled;                 /* openocd automatic
+                                                * cache handling */
+       /* outer unified cache if some */
+       void *outer_cache;
+       int (*flush_all_data_cache)(struct target *target);
+};
+
+struct armv7a_mmu_common {
+       /* following field mmu working way */
+       int32_t cached;     /* 0: not initialized, 1: initialized */
+       uint32_t ttbcr;     /* cache for ttbcr register */
+       uint32_t ttbr[2];
+       uint32_t ttbr_mask[2];
+       uint32_t ttbr_range[2];
+
+       int (*read_physical_memory)(struct target *target, target_addr_t address, uint32_t size,
+                       uint32_t count, uint8_t *buffer);
+       struct armv7a_cache_common armv7a_cache;
+       uint32_t mmu_enabled;
+};
+
+struct armv7a_common {
+       struct arm arm;
        int common_magic;
        struct reg_cache *core_cache;
 
-       /* arm adp debug port */
-       struct swjdp_common swjdp_info;
-
        /* Core Debug Unit */
        struct arm_dpm dpm;
        uint32_t debug_base;
-       uint8_t debug_ap;
-       uint8_t memory_ap;
-
-       /* Cache and Memory Management Unit */
-       struct armv4_5_mmu_common armv4_5_mmu;
+       struct adiv5_ap *debug_ap;
+       /* mdir */
+       uint8_t multi_processor_system;
+       uint8_t cluster_id;
+       uint8_t cpu_id;
+       bool is_armv7r;
+       uint32_t rev;
+       uint32_t partnum;
+       uint32_t arch;
+       uint32_t variant;
+       uint32_t implementor;
+
+       /* cache specific to V7 Memory Management Unit compatible with v4_5*/
+       struct armv7a_mmu_common armv7a_mmu;
 
        int (*examine_debug_reason)(struct target *target);
-       void (*post_debug_entry)(struct target *target);
+       int (*post_debug_entry)(struct target *target);
 
        void (*pre_restore_context)(struct target *target);
-       void (*post_restore_context)(struct target *target);
-
 };
 
 static inline struct armv7a_common *
 target_to_armv7a(struct target *target)
 {
-       return container_of(target->arch_info, struct armv7a_common,
-                       armv4_5_common);
+       return container_of(target->arch_info, struct armv7a_common, arm);
 }
 
+static inline bool is_armv7a(struct armv7a_common *armv7a)
+{
+       return armv7a->common_magic == ARMV7_COMMON_MAGIC;
+}
+
+
 /* register offsets from armv7a.debug_base */
 
 /* See ARMv7a arch spec section C10.2 */
@@ -110,15 +171,26 @@ target_to_armv7a(struct target *target)
 
 /* See ARMv7a arch spec section C10.7 */
 #define CPUDBG_DSCCR           0x028
+#define CPUDBG_DSMCR           0x02C
 
 /* See ARMv7a arch spec section C10.8 */
 #define CPUDBG_AUTHSTATUS      0xFB8
 
+/* Masks for Vector Catch register */
+#define DBG_VCR_FIQ_MASK       ((1 << 31) | (1 << 7))
+#define DBG_VCR_IRQ_MASK       ((1 << 30) | (1 << 6))
+#define DBG_VCR_DATA_ABORT_MASK        ((1 << 28) | (1 << 4))
+#define DBG_VCR_PREF_ABORT_MASK        ((1 << 27) | (1 << 3))
+#define DBG_VCR_SVC_MASK       ((1 << 26) | (1 << 2))
+
 int armv7a_arch_state(struct target *target);
-struct reg_cache *armv7a_build_reg_cache(struct target *target,
-               struct armv7a_common *armv7a_common);
+int armv7a_identify_cache(struct target *target);
 int armv7a_init_arch_info(struct target *target, struct armv7a_common *armv7a);
 
+int armv7a_handle_cache_info_command(struct command_context *cmd_ctx,
+               struct armv7a_cache_common *armv7a_cache);
+int armv7a_read_ttbcr(struct target *target);
+
 extern const struct command_registration armv7a_command_handlers[];
 
-#endif /* ARMV4_5_H */
+#endif /* OPENOCD_TARGET_ARMV7A_H */

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