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-rw-r--r--sys/contrib/ia64/libuwx/src/uwx_context.c408
1 files changed, 0 insertions, 408 deletions
diff --git a/sys/contrib/ia64/libuwx/src/uwx_context.c b/sys/contrib/ia64/libuwx/src/uwx_context.c
deleted file mode 100644
index 9b1054a..0000000
--- a/sys/contrib/ia64/libuwx/src/uwx_context.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/*
-Copyright (c) 2003-2006 Hewlett-Packard Development Company, L.P.
-Permission is hereby granted, free of charge, to any person
-obtaining a copy of this software and associated documentation
-files (the "Software"), to deal in the Software without
-restriction, including without limitation the rights to use,
-copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following
-conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#include "uwx_env.h"
-#include "uwx_scoreboard.h"
-#include "uwx_step.h"
-#include "uwx_trace.h"
-
-int uwx_init_context(
- struct uwx_env *env,
- uint64_t ip,
- uint64_t sp,
- uint64_t bsp,
- uint64_t cfm)
-{
- int i;
-
- if (env == 0)
- return UWX_ERR_NOENV;
-
- env->context.special[UWX_REG_IP] = ip;
- env->context.special[UWX_REG_SP] = sp;
- env->context.special[UWX_REG_BSP] = bsp;
- env->context.special[UWX_REG_CFM] = cfm;
- for (i = UWX_REG_RP; i < NSPECIALREG; i++)
- env->context.special[i] = 0;
- for (i = 0; i < NPRESERVEDGR; i++)
- env->context.gr[i] = 0;
- env->context.valid_regs = VALID_BASIC4;
- env->context.valid_frs = 0;
- env->rstate = 0;
- (void)uwx_init_history(env);
- return UWX_OK;
-}
-
-int uwx_get_reg(struct uwx_env *env, int regid, uint64_t *valp)
-{
- int status;
- int sor;
- int rrb_gr;
- uint64_t bsp;
- int n;
-
- if (env == 0)
- return UWX_ERR_NOENV;
-
- status = UWX_OK;
-
- if (regid == UWX_REG_GR(12))
- regid = UWX_REG_SP;
- if (regid < NSPECIALREG && (env->context.valid_regs & (1 << regid)))
- *valp = env->context.special[regid];
- else if (regid == UWX_REG_PSP || regid == UWX_REG_RP ||
- regid == UWX_REG_PFS) {
- status = uwx_restore_markers(env);
- if (status != UWX_OK)
- return status;
- *valp = env->context.special[regid];
- }
- else if (regid >= UWX_REG_GR(4) && regid <= UWX_REG_GR(7) &&
- (env->context.valid_regs &
- (1 << (regid - UWX_REG_GR(4) + VALID_GR_SHIFT))) )
- *valp = env->context.gr[regid - UWX_REG_GR(4)];
- else if (regid >= UWX_REG_GR(32) && regid <= UWX_REG_GR(127)) {
- if (env->copyin == 0)
- return UWX_ERR_NOCALLBACKS;
- bsp = env->context.special[UWX_REG_BSP];
- TRACE_C_GET_REG(regid, bsp)
- regid -= UWX_REG_GR(32);
- sor = (((int) env->context.special[UWX_REG_CFM] >> 14) & 0x0f) * 8;
- rrb_gr = ((int) env->context.special[UWX_REG_CFM] >> 18) & 0x7f;
- if (sor != 0 && rrb_gr != 0 && regid < sor) {
- TRACE_C_ROTATE_GR(regid, sor, rrb_gr, (regid+rrb_gr)%sor)
- regid = (regid + rrb_gr) % sor;
- }
- bsp = uwx_add_to_bsp(bsp, regid);
- n = (*env->copyin)(UWX_COPYIN_RSTACK, (char *)valp,
- bsp, DWORDSZ, env->cb_token);
- if (n != DWORDSZ)
- status = UWX_ERR_COPYIN_RSTK;
- }
- else if (regid == UWX_REG_GR(0))
- *valp = 0;
- else if (regid >= UWX_REG_BR(1) && regid <= UWX_REG_BR(5) &&
- (env->context.valid_regs &
- (1 << (regid - UWX_REG_BR(1) + VALID_BR_SHIFT))) )
- *valp = env->context.br[regid - UWX_REG_BR(1)];
- else if (regid >= UWX_REG_FR(2) && regid <= UWX_REG_FR(5) &&
- (env->context.valid_frs & (1 << (regid - UWX_REG_FR(2)))) ) {
- valp[0] = env->context.fr[regid - UWX_REG_FR(2)].part0;
- valp[1] = env->context.fr[regid - UWX_REG_FR(2)].part1;
- }
- else if (regid >= UWX_REG_FR(16) && regid <= UWX_REG_FR(31) &&
- (env->context.valid_frs & (1 << (regid - UWX_REG_FR(16) + 4))) ) {
- valp[0] = env->context.fr[regid - UWX_REG_FR(16) + 4].part0;
- valp[1] = env->context.fr[regid - UWX_REG_FR(16) + 4].part1;
- }
- else if ( (regid < NSPECIALREG) ||
- (regid >= UWX_REG_GR(1) && regid <= UWX_REG_GR(31)) ||
- (regid >= UWX_REG_BR(0) && regid <= UWX_REG_BR(7)) ) {
- if (env->copyin == 0)
- return UWX_ERR_NOCALLBACKS;
- n = (*env->copyin)(UWX_COPYIN_REG, (char *)valp,
- regid, DWORDSZ, env->cb_token);
- if (n != DWORDSZ)
- status = UWX_ERR_COPYIN_REG;
- }
- else if (regid >= UWX_REG_FR(2) && regid <= UWX_REG_FR(127)) {
- if (env->copyin == 0)
- return UWX_ERR_NOCALLBACKS;
- n = (*env->copyin)(UWX_COPYIN_REG, (char *)valp,
- regid, 2*DWORDSZ, env->cb_token);
- if (n != 2*DWORDSZ)
- status = UWX_ERR_COPYIN_REG;
- }
- else if (regid == UWX_REG_FR(0)) {
- valp[0] = 0;
- valp[1] = 0;
- }
- else if (regid == UWX_REG_FR(1)) {
- valp[0] = 0x000000000000ffffULL;
- valp[1] = 0x8000000000000000ULL;
- }
- else
- status = UWX_ERR_BADREGID;
- return status;
-}
-
-int uwx_get_nat(struct uwx_env *env, int regid, int *natp)
-{
- int status;
- int sor;
- int rrb_gr;
- uint64_t bsp;
- uint64_t natcollp;
- uint64_t natcoll;
- int n;
-
- if (env == 0)
- return UWX_ERR_NOENV;
-
- status = UWX_OK;
-
- if (regid >= UWX_REG_GR(4) && regid <= UWX_REG_GR(7) &&
- (env->context.valid_regs &
- (1 << (regid - UWX_REG_GR(4) + VALID_GR_SHIFT))) ) {
- *natp = (env->context.special[UWX_REG_PRIUNAT] >>
- (regid - UWX_REG_GR(4)) ) & 0x01;
- }
- else if (regid >= UWX_REG_GR(32) && regid <= UWX_REG_GR(127)) {
- if (env->copyin == 0)
- return UWX_ERR_NOCALLBACKS;
- bsp = env->context.special[UWX_REG_BSP];
- regid -= UWX_REG_GR(32);
- sor = (((int) env->context.special[UWX_REG_CFM] >> 14) & 0x0f) * 8;
- rrb_gr = ((int) env->context.special[UWX_REG_CFM] >> 18) & 0x7f;
- if (sor != 0 && rrb_gr != 0 && regid < sor) {
- regid = (regid + rrb_gr) % sor;
- }
- bsp = uwx_add_to_bsp(bsp, regid);
- natcollp = bsp | 0x01f8;
- n = (*env->copyin)(UWX_COPYIN_RSTACK, (char *)&natcoll,
- natcollp, DWORDSZ, env->cb_token);
- if (n != DWORDSZ)
- return UWX_ERR_COPYIN_RSTK;
- *natp = (int)(natcoll >> (((int)bsp >> 3) & 0x3f)) & 0x01;
- }
- else if (regid == UWX_REG_GR(0))
- *natp = 0;
- else
- status = UWX_ERR_BADREGID;
- return status;
-}
-
-int uwx_get_spill_loc(struct uwx_env *env, int regid, uint64_t *dispp)
-{
- int status;
- int sor;
- int rrb_gr;
- uint64_t bsp;
-
- if (env == 0)
- return UWX_ERR_NOENV;
-
- status = UWX_OK;
-
- if (regid == UWX_REG_GR(12))
- regid = UWX_REG_SP;
- if (regid < NSPECIALREG) {
- if (regid == UWX_REG_PSP || regid == UWX_REG_RP ||
- regid == UWX_REG_PFS) {
- if (!(env->context.valid_regs & (1 << regid))) {
- status = uwx_restore_markers(env);
- if (status != UWX_OK)
- return status;
- }
- }
- *dispp = env->history.special[regid];
- }
- else if (regid >= UWX_REG_GR(4) && regid <= UWX_REG_GR(7))
- *dispp = env->history.gr[regid - UWX_REG_GR(4)];
- else if (regid >= UWX_REG_GR(32) && regid <= UWX_REG_GR(127)) {
- bsp = env->context.special[UWX_REG_BSP];
- regid -= UWX_REG_GR(32);
- sor = (((int) env->context.special[UWX_REG_CFM] >> 14) & 0x0f) * 8;
- rrb_gr = ((int) env->context.special[UWX_REG_CFM] >> 18) & 0x7f;
- if (sor != 0 && rrb_gr != 0 && regid < sor)
- regid = (regid + rrb_gr) % sor;
- bsp = uwx_add_to_bsp(bsp, regid);
- *dispp = UWX_DISP_RSTK(bsp);
- }
- else if (regid >= UWX_REG_BR(1) && regid <= UWX_REG_GR(5))
- *dispp = env->history.br[regid - UWX_REG_BR(1)];
- else if (regid >= UWX_REG_FR(2) && regid <= UWX_REG_FR(5))
- *dispp = env->history.fr[regid - UWX_REG_FR(2)];
- else if (regid >= UWX_REG_FR(16) && regid <= UWX_REG_FR(31))
- *dispp = env->history.fr[regid - UWX_REG_FR(16) + 4];
- else if ( (regid >= UWX_REG_GR(1) && regid <= UWX_REG_GR(31)) ||
- (regid >= UWX_REG_BR(0) && regid <= UWX_REG_BR(7)) ||
- (regid >= UWX_REG_FR(2) && regid <= UWX_REG_FR(127)) )
- *dispp = UWX_DISP_REG(regid);
- else
- status = UWX_ERR_BADREGID;
- return status;
-}
-
-int uwx_set_reg(struct uwx_env *env, int regid, uint64_t val)
-{
- int status;
-
- if (env == 0)
- return UWX_ERR_NOENV;
-
- if (regid == UWX_REG_GR(12))
- regid = UWX_REG_SP;
- if (regid < NSPECIALREG) {
- env->context.special[regid] = val;
- env->context.valid_regs |= 1 << regid;
- status = UWX_OK;
- }
- else if (regid >= UWX_REG_GR(4) && regid <= UWX_REG_GR(7)) {
- env->context.gr[regid - UWX_REG_GR(4)] = val;
- env->context.valid_regs |=
- 1 << (regid - UWX_REG_GR(4) + VALID_GR_SHIFT);
- status = UWX_OK;
- }
- else if (regid >= UWX_REG_GR(32) && regid <= UWX_REG_GR(127)) {
- status = UWX_ERR_BADREGID;
- }
- else if (regid >= UWX_REG_BR(1) && regid <= UWX_REG_BR(5)) {
- env->context.br[regid - UWX_REG_BR(1)] = val;
- env->context.valid_regs |=
- 1 << (regid - UWX_REG_BR(1) + VALID_BR_SHIFT);
- status = UWX_OK;
- }
- else
- status = UWX_ERR_BADREGID;
- return status;
-}
-
-int uwx_set_fr(struct uwx_env *env, int regid, uint64_t *val)
-{
-
- if (regid >= UWX_REG_FR(2) && regid <= UWX_REG_FR(5))
- regid -= UWX_REG_FR(2);
- else if (regid >= UWX_REG_FR(16) && regid <= UWX_REG_FR(31))
- regid -= UWX_REG_FR(16) - 4;
- else
- return UWX_ERR_BADREGID;
-
- env->context.fr[regid].part0 = val[0];
- env->context.fr[regid].part1 = val[1];
- env->context.valid_frs |= 1 << regid;
- env->nsbreg = NSBREG;
- return UWX_OK;
-}
-
-uint64_t uwx_add_to_bsp(uint64_t bsp, int nslots)
-{
- int bias;
-
- /*
- * Here's a picture of the backing store as modeled in
- * the computations below. "X" marks NaT collections at
- * every 0x1f8 mod 0x200 address.
- *
- * To make the NaT adjustments easier, we bias the current bsp
- * by enough slots to place it at the previous NaT collection.
- * Then we need to add the bias to the number of slots,
- * then add 1 for every 63 slots to account for NaT collections.
- * Then we can remove the bias again and add the adjusted
- * number of slots to the bsp.
- *
- * 0 1f8 3f8
- * +---------------------------------------------------------------+
- * | X X|
- * +---------------------------------------------------------------+
- * <-------- bias -------->
- * <--- nslots --->
- * ^
- * |
- * bsp
- * <------------ nslots + bias ----------->
-
- * When subtracting from bsp, we avoid depending on the sign of
- * the quotient by adding 63*8 before division and subtracting 8
- * after division. (Assumes that we will never be called upon
- * to subtract more than 504 slots from bsp.)
- *
- * 0 1f8 3f8
- * +---------------------------------------------------------------+
- * | X X|
- * +---------------------------------------------------------------+
- * <-- bias -->
- * <--- (-nslots) --->
- * ^
- * |
- * bsp
- * <----------------->
- * -(nslots + bias)
- */
-
- bias = ((unsigned int)bsp & 0x1f8) / DWORDSZ;
- nslots += (nslots + bias + 63*8) / 63 - 8;
- return bsp + nslots * DWORDSZ;
-}
-
-#if 0
-int uwx_selftest_bsp_arithmetic()
-{
- int i;
- int j;
- int r;
- uint64_t bstore[161];
- uint64_t *bsp;
- uint64_t *p;
- int failed = 0;
-
- printf("uwx_selftest_bsp_arithmetic: bsp at %08lx\n", (unsigned int)bstore);
- r = 0;
- bsp = bstore;
- for (i = 0; i < 161; i++) {
- if (((unsigned int)bsp & 0x1f8) == 0x1f8)
- *bsp++ = 1000 + r;
- else
- *bsp++ = r++;
- }
-
- printf("uwx_selftest_bsp_arithmetic: plus tests...\n");
- bsp = bstore;
- for (i = 0; i < 64; i++) {
- r = (int)*bsp;
- if (r >= 1000)
- r -= 1000;
- for (j = 0; j < 96; j++) {
- p = (uint64_t *)(intptr_t)uwx_add_to_bsp((uint64_t)bsp, j);
- if (*p != (r + j)) {
- failed++;
- printf("%d [%08lx] + %d -> %08lx ",
- i, (unsigned int)bsp, j, (unsigned int)p);
- printf("(read %d instead of %d)\n", (int)*p, r + j);
- }
- }
- bsp++;
- }
-
- printf("uwx_selftest_bsp_arithmetic: minus tests...\n");
- bsp = &bstore[161];
- for (i = 63; i >= 0; i--) {
- bsp--;
- r = (int)*bsp;
- if (r >= 1000)
- r -= 1000;
- for (j = 0; j < 96; j++) {
- p = (uint64_t *)(intptr_t)uwx_add_to_bsp((uint64_t)bsp, -j);
- if (*p != (r - j)) {
- failed++;
- printf("%d [%08lx] - %d -> %08lx ",
- i, (unsigned int)bsp, j, (unsigned int)p);
- printf("(read %d instead of %d)\n", (int)*p, r - j);
- }
- }
- }
-
- return failed;
-}
-#endif
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