Remove FSF address from GPL notices

[openocd.git] / src / target / armv7a_cache.c

diff --git a/src/target/armv7a_cache.c b/src/target/armv7a_cache.c
index da617b81b1019d5b7b0a9c00cd4d19d42a5d8f6e..7af3e6d4e8a2d6ff1cf8ba9917613fcea9fe1f0b 100644 (file)
--- a/src/target/armv7a_cache.c
+++ b/src/target/armv7a_cache.c
@@ -11,6 +11,9 @@
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   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, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
@@ -35,7 +38,7 @@ static int armv7a_l1_d_cache_sanity_check(struct target *target)
 
        /*  check that cache data is on at target halt */
        if (!armv7a->armv7a_mmu.armv7a_cache.d_u_cache_enabled) {
-               LOG_DEBUG("l1 data cache is not enabled");
+               LOG_DEBUG("data cache is not enabled");
                return ERROR_TARGET_INVALID;
        }
 
@@ -53,7 +56,7 @@ static int armv7a_l1_i_cache_sanity_check(struct target *target)
 
        /*  check that cache data is on at target halt */
        if (!armv7a->armv7a_mmu.armv7a_cache.i_cache_enabled) {
-               LOG_DEBUG("l1 data cache is not enabled");
+               LOG_DEBUG("instruction cache is not enabled");
                return ERROR_TARGET_INVALID;
        }
 
@@ -152,13 +155,14 @@ int armv7a_cache_auto_flush_all_data(struct target *target)
 }
 
 
-static int armv7a_l1_d_cache_inval_virt(struct target *target, uint32_t virt,
+int armv7a_l1_d_cache_inval_virt(struct target *target, uint32_t virt,
                                        uint32_t size)
 {
        struct armv7a_common *armv7a = target_to_armv7a(target);
        struct arm_dpm *dpm = armv7a->arm.dpm;
        struct armv7a_cache_common *armv7a_cache = &armv7a->armv7a_mmu.armv7a_cache;
-       uint32_t i, linelen = armv7a_cache->dminline;
+       uint32_t linelen = armv7a_cache->dminline;
+       uint32_t va_line, va_end;
        int retval;
 
        retval = armv7a_l1_d_cache_sanity_check(target);
@@ -169,15 +173,39 @@ static int armv7a_l1_d_cache_inval_virt(struct target *target, uint32_t virt,
        if (retval != ERROR_OK)
                goto done;
 
-       for (i = 0; i < size; i += linelen) {
-               uint32_t offs = virt + i;
+       va_line = virt & (-linelen);
+       va_end = virt + size;
+
+       /* handle unaligned start */
+       if (virt != va_line) {
+               /* DCCIMVAC */
+               retval = dpm->instr_write_data_r0(dpm,
+                               ARMV4_5_MCR(15, 0, 0, 7, 14, 1), va_line);
+               if (retval != ERROR_OK)
+                       goto done;
+               va_line += linelen;
+       }
 
-               /* DCIMVAC - Clean and invalidate data cache line by VA to PoC. */
+       /* handle unaligned end */
+       if ((va_end & (linelen-1)) != 0) {
+               va_end &= (-linelen);
+               /* DCCIMVAC */
                retval = dpm->instr_write_data_r0(dpm,
-                               ARMV4_5_MCR(15, 0, 0, 7, 6, 1), offs);
+                               ARMV4_5_MCR(15, 0, 0, 7, 14, 1), va_end);
                if (retval != ERROR_OK)
                        goto done;
        }
+
+       while (va_line < va_end) {
+               /* DCIMVAC - Invalidate data cache line by VA to PoC. */
+               retval = dpm->instr_write_data_r0(dpm,
+                               ARMV4_5_MCR(15, 0, 0, 7, 6, 1), va_line);
+               if (retval != ERROR_OK)
+                       goto done;
+               va_line += linelen;
+       }
+
+       dpm->finish(dpm);
        return retval;
 
 done:
@@ -193,7 +221,8 @@ int armv7a_l1_d_cache_clean_virt(struct target *target, uint32_t virt,
        struct armv7a_common *armv7a = target_to_armv7a(target);
        struct arm_dpm *dpm = armv7a->arm.dpm;
        struct armv7a_cache_common *armv7a_cache = &armv7a->armv7a_mmu.armv7a_cache;
-       uint32_t i, linelen = armv7a_cache->dminline;
+       uint32_t linelen = armv7a_cache->dminline;
+       uint32_t va_line, va_end;
        int retval;
 
        retval = armv7a_l1_d_cache_sanity_check(target);
@@ -204,15 +233,19 @@ int armv7a_l1_d_cache_clean_virt(struct target *target, uint32_t virt,
        if (retval != ERROR_OK)
                goto done;
 
-       for (i = 0; i < size; i += linelen) {
-               uint32_t offs = virt + i;
+       va_line = virt & (-linelen);
+       va_end = virt + size;
 
+       while (va_line < va_end) {
                /* DCCMVAC - Data Cache Clean by MVA to PoC */
                retval = dpm->instr_write_data_r0(dpm,
-                               ARMV4_5_MCR(15, 0, 0, 7, 10, 1), offs);
+                               ARMV4_5_MCR(15, 0, 0, 7, 10, 1), va_line);
                if (retval != ERROR_OK)
                        goto done;
+               va_line += linelen;
        }
+
+       dpm->finish(dpm);
        return retval;
 
 done:
@@ -228,7 +261,8 @@ int armv7a_l1_d_cache_flush_virt(struct target *target, uint32_t virt,
        struct armv7a_common *armv7a = target_to_armv7a(target);
        struct arm_dpm *dpm = armv7a->arm.dpm;
        struct armv7a_cache_common *armv7a_cache = &armv7a->armv7a_mmu.armv7a_cache;
-       uint32_t i, linelen = armv7a_cache->dminline;
+       uint32_t linelen = armv7a_cache->dminline;
+       uint32_t va_line, va_end;
        int retval;
 
        retval = armv7a_l1_d_cache_sanity_check(target);
@@ -239,15 +273,19 @@ int armv7a_l1_d_cache_flush_virt(struct target *target, uint32_t virt,
        if (retval != ERROR_OK)
                goto done;
 
-       for (i = 0; i < size; i += linelen) {
-               uint32_t offs = virt + i;
+       va_line = virt & (-linelen);
+       va_end = virt + size;
 
+       while (va_line < va_end) {
                /* DCCIMVAC */
                retval = dpm->instr_write_data_r0(dpm,
-                               ARMV4_5_MCR(15, 0, 0, 7, 14, 1), offs);
+                               ARMV4_5_MCR(15, 0, 0, 7, 14, 1), va_line);
                if (retval != ERROR_OK)
                        goto done;
+               va_line += linelen;
        }
+
+       dpm->finish(dpm);
        return retval;
 
 done: