Merge branch 'for-upstream' of git://github.com/mwalle/qemu

* 'for-upstream' of git://github.com/mwalle/qemu:
  configure: rename OpenGL feature to GLX
  configure: proper OpenGL/GLX probe
  target-lm32: use HELPER() macro
  target-lm32: flush tlb after clearing env
  target-lm32: remove dead code
  target-lm32: fix cmpgui and cmpgeui opcodes
  tests: tcg: lm32: add more test cases
  target-lm32: don't log cpu state in translation
  lm32_uart: fix receive buffering
  milkymist-uart: fix receive buffering
  lm32-dis: fix NULL pointer dereference
  target-lm32: fix debug memory access

configure

@@ -217,7 +217,7 @@ spice=""
 rbd=""
 smartcard_nss=""
 usb_redir=""
-opengl=""
+glx=""
 zlib="yes"
 guest_agent="yes"
 want_tools="yes"
@@ -858,9 +858,9 @@ for opt do
   ;;
   --enable-vhost-net) vhost_net="yes"
   ;;
-  --disable-opengl) opengl="no"
+  --disable-glx) glx="no"
   ;;
-  --enable-opengl) opengl="yes"
+  --enable-glx) glx="yes"
   ;;
   --disable-rbd) rbd="no"
   ;;
@@ -2436,23 +2436,23 @@ EOF
 fi
 
 ##########################################
-# opengl probe, used by milkymist-tmu2
+# GLX probe, used by milkymist-tmu2
-if test "$opengl" != "no" ; then
+if test "$glx" != "no" ; then
-  opengl_libs="-lGL -lX11"
+  glx_libs="-lGL -lX11"
   cat > $TMPC << EOF
 #include <X11/Xlib.h>
 #include <GL/gl.h>
 #include <GL/glx.h>
-int main(void) { return GL_VERSION != 0; }
+int main(void) { glBegin(0); glXQueryVersion(0,0,0); return 0; }
 EOF
-  if compile_prog "" "-lGL" ; then
+  if compile_prog "" "-lGL -lX11" ; then
-    opengl=yes
+    glx=yes
   else
-    if test "$opengl" = "yes" ; then
+    if test "$glx" = "yes" ; then
-      feature_not_found "opengl"
+      feature_not_found "glx"
     fi
-    opengl_libs=
+    glx_libs=
-    opengl=no
+    glx=no
   fi
 fi
 
@@ -3430,7 +3430,7 @@ echo "rbd support       $rbd"
 echo "xfsctl support    $xfs"
 echo "nss used          $smartcard_nss"
 echo "usb net redir     $usb_redir"
-echo "OpenGL support    $opengl"
+echo "GLX support       $glx"
 echo "libiscsi support  $libiscsi"
 echo "build guest agent $guest_agent"
 echo "seccomp support   $seccomp"
@@ -3741,8 +3741,8 @@ if test "$usb_redir" = "yes" ; then
   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
 fi
 
-if test "$opengl" = "yes" ; then
+if test "$glx" = "yes" ; then
-  echo "CONFIG_OPENGL=y" >> $config_host_mak
+  echo "CONFIG_GLX=y" >> $config_host_mak
 fi
 
 if test "$libiscsi" = "yes" ; then
@@ -4020,7 +4020,7 @@ case "$target_arch2" in
     target_nptl="yes"
   ;;
   lm32)
-    target_libs_softmmu="$opengl_libs"
+    target_libs_softmmu="$glx_libs"
   ;;
   m68k)
     bflt="yes"

disas/lm32.c

@@ -303,11 +303,11 @@ int print_insn_lm32(bfd_vma memaddr, struct disassemble_info *info)
                 }
                 case 'c': {
                     uint8_t csr;
-                    const char *csr_name;
+                    const Lm32CsrInfo *info;
                     csr = (op >> 21) & 0x1f;
-                    csr_name = find_csr_info(csr)->name;
+                    info = find_csr_info(csr);
-                    if (csr_name) {
+                    if (info) {
-                        fprintf_fn(stream, "%s", csr_name);
+                        fprintf_fn(stream, "%s", info->name);
                     } else {
                         fprintf_fn(stream, "0x%x", csr);
                     }

hw/lm32/Makefile.objs

@@ -11,7 +11,7 @@ obj-y += milkymist-minimac2.o
 obj-y += milkymist-pfpu.o
 obj-y += milkymist-softusb.o
 obj-y += milkymist-sysctl.o
-obj-$(CONFIG_OPENGL) += milkymist-tmu2.o
+obj-$(CONFIG_GLX) += milkymist-tmu2.o
 obj-y += milkymist-uart.o
 obj-y += milkymist-vgafb.o
 obj-y += framebuffer.o

hw/lm32_uart.c

@@ -137,6 +137,7 @@ static uint64_t uart_read(void *opaque, hwaddr addr,
         r = s->regs[R_RXTX];
         s->regs[R_LSR] &= ~LSR_DR;
         uart_update_irq(s);
+        qemu_chr_accept_input(s->chr);
         break;
     case R_IIR:
     case R_LSR:

hw/milkymist-hw.h

@@ -87,7 +87,7 @@ static inline DeviceState *milkymist_pfpu_create(hwaddr base,
     return dev;
 }
 
-#ifdef CONFIG_OPENGL
+#ifdef CONFIG_GLX
 #include <X11/Xlib.h>
 #include <GL/glx.h>
 static const int glx_fbconfig_attr[] = {
@@ -101,7 +101,7 @@ static const int glx_fbconfig_attr[] = {
 static inline DeviceState *milkymist_tmu2_create(hwaddr base,
         qemu_irq irq)
 {
-#ifdef CONFIG_OPENGL
+#ifdef CONFIG_GLX
     DeviceState *dev;
     Display *d;
     GLXFBConfig *configs;

hw/milkymist-uart.c

@@ -132,6 +132,7 @@ static void uart_write(void *opaque, hwaddr addr, uint64_t value,
     case R_STAT:
         /* write one to clear bits */
         s->regs[addr] &= ~(value & (STAT_RX_EVT | STAT_TX_EVT));
+        qemu_chr_accept_input(s->chr);
         break;
 
     default:

target-lm32/cpu.c

@@ -36,10 +36,10 @@ static void lm32_cpu_reset(CPUState *s)
 
     lcc->parent_reset(s);
 
-    tlb_flush(env, 1);
-
     /* reset cpu state */
     memset(env, 0, offsetof(CPULM32State, breakpoints));
+
+    tlb_flush(env, 1);
 }
 
 static void lm32_cpu_realizefn(DeviceState *dev, Error **errp)

target-lm32/cpu.h

@@ -229,18 +229,8 @@ static inline void cpu_set_tls(CPULM32State *env, target_ulong newtls)
 {
 }
 
-static inline int cpu_interrupts_enabled(CPULM32State *env)
-{
-    return env->ie & IE_IE;
-}
-
 #include "exec/cpu-all.h"
 
-static inline target_ulong cpu_get_pc(CPULM32State *env)
-{
-    return env->pc;
-}
-
 static inline void cpu_get_tb_cpu_state(CPULM32State *env, target_ulong *pc,
                                         target_ulong *cs_base, int *flags)
 {

target-lm32/helper.c

@@ -39,7 +39,12 @@ int cpu_lm32_handle_mmu_fault(CPULM32State *env, target_ulong address, int rw,
 
 hwaddr cpu_get_phys_page_debug(CPULM32State *env, target_ulong addr)
 {
-    return addr & TARGET_PAGE_MASK;
+    addr &= TARGET_PAGE_MASK;
+    if (env->flags & LM32_FLAG_IGNORE_MSB) {
+        return addr & 0x7fffffff;
+    } else {
+        return addr;
+    }
 }
 
 void lm32_cpu_do_interrupt(CPUState *cs)

target-lm32/op_helper.c

@@ -17,13 +17,13 @@
 #define SHIFT 3
 #include "exec/softmmu_template.h"
 
-void helper_raise_exception(CPULM32State *env, uint32_t index)
+void HELPER(raise_exception)(CPULM32State *env, uint32_t index)
 {
     env->exception_index = index;
     cpu_loop_exit(env);
 }
 
-void helper_hlt(CPULM32State *env)
+void HELPER(hlt)(CPULM32State *env)
 {
     CPUState *cs = CPU(lm32_env_get_cpu(env));
 
@@ -32,42 +32,42 @@ void helper_hlt(CPULM32State *env)
     cpu_loop_exit(env);
 }
 
-void helper_wcsr_im(CPULM32State *env, uint32_t im)
+void HELPER(wcsr_im)(CPULM32State *env, uint32_t im)
 {
     lm32_pic_set_im(env->pic_state, im);
 }
 
-void helper_wcsr_ip(CPULM32State *env, uint32_t im)
+void HELPER(wcsr_ip)(CPULM32State *env, uint32_t im)
 {
     lm32_pic_set_ip(env->pic_state, im);
 }
 
-void helper_wcsr_jtx(CPULM32State *env, uint32_t jtx)
+void HELPER(wcsr_jtx)(CPULM32State *env, uint32_t jtx)
 {
     lm32_juart_set_jtx(env->juart_state, jtx);
 }
 
-void helper_wcsr_jrx(CPULM32State *env, uint32_t jrx)
+void HELPER(wcsr_jrx)(CPULM32State *env, uint32_t jrx)
 {
     lm32_juart_set_jrx(env->juart_state, jrx);
 }
 
-uint32_t helper_rcsr_im(CPULM32State *env)
+uint32_t HELPER(rcsr_im)(CPULM32State *env)
 {
     return lm32_pic_get_im(env->pic_state);
 }
 
-uint32_t helper_rcsr_ip(CPULM32State *env)
+uint32_t HELPER(rcsr_ip)(CPULM32State *env)
 {
     return lm32_pic_get_ip(env->pic_state);
 }
 
-uint32_t helper_rcsr_jtx(CPULM32State *env)
+uint32_t HELPER(rcsr_jtx)(CPULM32State *env)
 {
     return lm32_juart_get_jtx(env->juart_state);
 }
 
-uint32_t helper_rcsr_jrx(CPULM32State *env)
+uint32_t HELPER(rcsr_jrx)(CPULM32State *env)
 {
     return lm32_juart_get_jrx(env->juart_state);
 }

target-lm32/translate.c

@@ -324,10 +324,20 @@ static inline void gen_compare(DisasContext *dc, int cond)
     int rX = (dc->format == OP_FMT_RR) ? dc->r2 : dc->r1;
     int rY = (dc->format == OP_FMT_RR) ? dc->r0 : dc->r0;
     int rZ = (dc->format == OP_FMT_RR) ? dc->r1 : -1;
+    int i;
 
     if (dc->format == OP_FMT_RI) {
-        tcg_gen_setcondi_tl(cond, cpu_R[rX], cpu_R[rY],
+        switch (cond) {
-                sign_extend(dc->imm16, 16));
+        case TCG_COND_GEU:
+        case TCG_COND_GTU:
+            i = zero_extend(dc->imm16, 16);
+            break;
+        default:
+            i = sign_extend(dc->imm16, 16);
+            break;
+        }
+
+        tcg_gen_setcondi_tl(cond, cpu_R[rX], cpu_R[rY], i);
     } else {
         tcg_gen_setcond_tl(cond, cpu_R[rX], cpu_R[rY], cpu_R[rZ]);
     }
@@ -373,7 +383,7 @@ static void dec_cmpgeu(DisasContext *dc)
 {
     if (dc->format == OP_FMT_RI) {
         LOG_DIS("cmpgeui r%d, r%d, %d\n", dc->r0, dc->r1,
-                sign_extend(dc->imm16, 16));
+                zero_extend(dc->imm16, 16));
     } else {
         LOG_DIS("cmpgeu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
     }
@@ -385,7 +395,7 @@ static void dec_cmpgu(DisasContext *dc)
 {
     if (dc->format == OP_FMT_RI) {
         LOG_DIS("cmpgui r%d, r%d, %d\n", dc->r0, dc->r1,
-                sign_extend(dc->imm16, 16));
+                zero_extend(dc->imm16, 16));
     } else {
         LOG_DIS("cmpgu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
     }
@@ -1027,11 +1037,6 @@ static void gen_intermediate_code_internal(CPULM32State *env,
         cpu_abort(env, "LM32: unaligned PC=%x\n", pc_start);
     }
 
-    if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
-        qemu_log("-----------------------------------------\n");
-        log_cpu_state(env, 0);
-    }
-
     next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
     lj = -1;
     num_insns = 0;

tests/tcg/lm32/test_cmpgei.S

@@ -52,4 +52,19 @@ mvi r3, 0
 cmpgei r3, r3, 0
 check_r3 1
 
+test_name CMPGEI_11
+mvi r1, 0
+cmpgei r3, r1, -32768
+check_r3 1
+
+test_name CMPGEI_12
+mvi r1, -1
+cmpgei r3, r1, -32768
+check_r3 1
+
+test_name CMPGEI_13
+mvi r1, -32768
+cmpgei r3, r1, -32768
+check_r3 1
+
 end

tests/tcg/lm32/test_cmpgeui.S

@@ -52,4 +52,19 @@ mvi r3, 0
 cmpgeui r3, r3, 0
 check_r3 1
 
+test_name CMPGEUI_11
+mvi r1, 0
+cmpgeui r3, r1, 0x8000
+check_r3 0
+
+test_name CMPGEUI_12
+mvi r1, -1
+cmpgeui r3, r1, 0x8000
+check_r3 1
+
+test_name CMPGEUI_13
+ori r1, r0, 0x8000
+cmpgeui r3, r1, 0x8000
+check_r3 1
+
 end

tests/tcg/lm32/test_cmpgi.S

@@ -52,4 +52,19 @@ mvi r3, 0
 cmpgi r3, r3, 0
 check_r3 0
 
+test_name CMPGI_11
+mvi r1, 0
+cmpgi r3, r1, -32768
+check_r3 1
+
+test_name CMPGI_12
+mvi r1, -1
+cmpgi r3, r1, -32768
+check_r3 1
+
+test_name CMPGI_13
+mvi r1, -32768
+cmpgi r3, r1, -32768
+check_r3 0
+
 end

tests/tcg/lm32/test_cmpgui.S

@@ -35,7 +35,7 @@ check_r3 1
 test_name CMPGUI_7
 mvi r1, -1
 cmpgui r3, r1, 0xffff
-check_r3 0
+check_r3 1
 
 test_name CMPGUI_8
 mvi r3, 0
@@ -52,4 +52,19 @@ mvi r3, 0
 cmpgui r3, r3, 0
 check_r3 0
 
+test_name CMPGUI_11
+mvi r1, 0
+cmpgui r3, r1, 0x8000
+check_r3 0
+
+test_name CMPGUI_12
+mvi r1, -1
+cmpgui r3, r1, 0x8000
+check_r3 1
+
+test_name CMPGUI_13
+ori r1, r0, 0x8000
+cmpgui r3, r1, 0x8000
+check_r3 0
+
 end