mesa: use simple mtx in core mesa

Results from x11perf -copywinwin10 on Eric's SKL:
   4.33338% ± 0.905054% (n=40)

Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Tested-by: Yogesh Marathe <[email protected]>

14 files changed, 89 insertions, 88 deletions

diff --git a/src/gallium/state_trackers/dri/dri2.c b/src/gallium/state_trackers/dri/dri2.c
index e0cd0e0bc7c..a70f37fe09a 100644
--- a/src/gallium/state_trackers/dri/dri2.c
+++ b/src/gallium/state_trackers/dri/dri2.c
@@ -1696,7 +1696,7 @@ dri2_interop_export_object(__DRIcontext *_ctx,
       return MESA_GLINTEROP_INVALID_MIP_LEVEL;
 
    /* Validate the OpenGL object and get pipe_resource. */
-   mtx_lock(&ctx->Shared->Mutex);
+   simple_mtx_lock(&ctx->Shared->Mutex);
 
    if (target == GL_ARRAY_BUFFER) {
       /* Buffer objects.
@@ -1712,14 +1712,14 @@ dri2_interop_export_object(__DRIcontext *_ctx,
        *   the size of the buffer is 0."
        */
       if (!buf || buf->Size == 0) {
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_INVALID_OBJECT;
       }
 
       res = st_buffer_object(buf)->buffer;
       if (!res) {
          /* this shouldn't happen */
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_INVALID_OBJECT;
       }
 
@@ -1740,7 +1740,7 @@ dri2_interop_export_object(__DRIcontext *_ctx,
        *    object or if the width or height of renderbuffer is zero."
        */
       if (!rb || rb->Width == 0 || rb->Height == 0) {
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_INVALID_OBJECT;
       }
 
@@ -1749,7 +1749,7 @@ dri2_interop_export_object(__DRIcontext *_ctx,
        *    renderbuffer object."
        */
       if (rb->NumSamples > 1) {
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_INVALID_OPERATION;
       }
 
@@ -1759,7 +1759,7 @@ dri2_interop_export_object(__DRIcontext *_ctx,
        */
       res = st_renderbuffer(rb)->texture;
       if (!res) {
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_OUT_OF_RESOURCES;
       }
 
@@ -1789,7 +1789,7 @@ dri2_interop_export_object(__DRIcontext *_ctx,
           obj->Target != target ||
           !obj->_BaseComplete ||
           (in->miplevel > 0 && !obj->_MipmapComplete)) {
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_INVALID_OBJECT;
       }
 
@@ -1802,19 +1802,19 @@ dri2_interop_export_object(__DRIcontext *_ctx,
        *    specification and section 3.7.10 of the OpenGL ES 2.0."
        */
       if (in->miplevel < obj->BaseLevel || in->miplevel > obj->_MaxLevel) {
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_INVALID_MIP_LEVEL;
       }
 
       if (!st_finalize_texture(ctx, st->pipe, obj, 0)) {
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_OUT_OF_RESOURCES;
       }
 
       res = st_get_texobj_resource(obj);
       if (!res) {
          /* Incomplete texture buffer object? This shouldn't really occur. */
-         mtx_unlock(&ctx->Shared->Mutex);
+         simple_mtx_unlock(&ctx->Shared->Mutex);
          return MESA_GLINTEROP_INVALID_OBJECT;
       }
 
@@ -1854,7 +1854,7 @@ dri2_interop_export_object(__DRIcontext *_ctx,
 
    success = screen->resource_get_handle(screen, st->pipe, res, &whandle,
                                          usage);
-   mtx_unlock(&ctx->Shared->Mutex);
+   simple_mtx_unlock(&ctx->Shared->Mutex);
 
    if (!success)
       return MESA_GLINTEROP_OUT_OF_HOST_MEMORY;
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index dfeea94bd19..c1dfdfba823 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -471,7 +471,7 @@ _mesa_delete_buffer_object(struct gl_context *ctx,
    bufObj->RefCount = -1000;
    bufObj->Name = ~0;
 
-   mtx_destroy(&bufObj->Mutex);
+   simple_mtx_destroy(&bufObj->Mutex);
    free(bufObj->Label);
    free(bufObj);
 }
@@ -493,11 +493,11 @@ _mesa_reference_buffer_object_(struct gl_context *ctx,
       GLboolean deleteFlag = GL_FALSE;
       struct gl_buffer_object *oldObj = *ptr;
 
-      mtx_lock(&oldObj->Mutex);
+      simple_mtx_lock(&oldObj->Mutex);
       assert(oldObj->RefCount > 0);
       oldObj->RefCount--;
       deleteFlag = (oldObj->RefCount == 0);
-      mtx_unlock(&oldObj->Mutex);
+      simple_mtx_unlock(&oldObj->Mutex);
 
       if (deleteFlag) {
 	 assert(ctx->Driver.DeleteBuffer);
@@ -510,12 +510,12 @@ _mesa_reference_buffer_object_(struct gl_context *ctx,
 
    if (bufObj) {
       /* reference new buffer */
-      mtx_lock(&bufObj->Mutex);
+      simple_mtx_lock(&bufObj->Mutex);
       assert(bufObj->RefCount > 0);
 
       bufObj->RefCount++;
       *ptr = bufObj;
-      mtx_unlock(&bufObj->Mutex);
+      simple_mtx_unlock(&bufObj->Mutex);
    }
 }
 
@@ -547,7 +547,7 @@ _mesa_initialize_buffer_object(struct gl_context *ctx,
                                GLuint name)
 {
    memset(obj, 0, sizeof(struct gl_buffer_object));
-   mtx_init(&obj->Mutex, mtx_plain);
+   simple_mtx_init(&obj->Mutex, mtx_plain);
    obj->RefCount = 1;
    obj->Name = name;
    obj->Usage = GL_STATIC_DRAW_ARB;
@@ -870,7 +870,7 @@ _mesa_init_buffer_objects( struct gl_context *ctx )
    GLuint i;
 
    memset(&DummyBufferObject, 0, sizeof(DummyBufferObject));
-   mtx_init(&DummyBufferObject.Mutex, mtx_plain);
+   simple_mtx_init(&DummyBufferObject.Mutex, mtx_plain);
    DummyBufferObject.RefCount = 1000*1000*1000; /* never delete */
 
    _mesa_reference_buffer_object(ctx, &ctx->Array.ArrayBufferObj,
diff --git a/src/mesa/main/debug_output.c b/src/mesa/main/debug_output.c
index bc933db93d4..859e1f966d2 100644
--- a/src/mesa/main/debug_output.c
+++ b/src/mesa/main/debug_output.c
@@ -37,7 +37,7 @@
 #include "util/simple_list.h"
 
 
-static mtx_t DynamicIDMutex = _MTX_INITIALIZER_NP;
+static simple_mtx_t DynamicIDMutex = _SIMPLE_MTX_INITIALIZER_NP;
 static GLuint NextDynamicID = 1;
 
 
@@ -194,10 +194,10 @@ void
 _mesa_debug_get_id(GLuint *id)
 {
    if (!(*id)) {
-      mtx_lock(&DynamicIDMutex);
+      simple_mtx_lock(&DynamicIDMutex);
       if (!(*id))
          *id = NextDynamicID++;
-      mtx_unlock(&DynamicIDMutex);
+      simple_mtx_unlock(&DynamicIDMutex);
    }
 }
 
@@ -702,13 +702,13 @@ debug_pop_group(struct gl_debug_state *debug)
 static struct gl_debug_state *
 _mesa_lock_debug_state(struct gl_context *ctx)
 {
-   mtx_lock(&ctx->DebugMutex);
+   simple_mtx_lock(&ctx->DebugMutex);
 
    if (!ctx->Debug) {
       ctx->Debug = debug_create();
       if (!ctx->Debug) {
          GET_CURRENT_CONTEXT(cur);
-         mtx_unlock(&ctx->DebugMutex);
+         simple_mtx_unlock(&ctx->DebugMutex);
 
          /*
           * This function may be called from other threads.  When that is the
@@ -727,7 +727,7 @@ _mesa_lock_debug_state(struct gl_context *ctx)
 static void
 _mesa_unlock_debug_state(struct gl_context *ctx)
 {
-   mtx_unlock(&ctx->DebugMutex);
+   simple_mtx_unlock(&ctx->DebugMutex);
 }
 
 /**
@@ -1273,7 +1273,7 @@ _mesa_PopDebugGroup(void)
 void
 _mesa_init_debug_output(struct gl_context *ctx)
 {
-   mtx_init(&ctx->DebugMutex, mtx_plain);
+   simple_mtx_init(&ctx->DebugMutex, mtx_plain);
 
    if (MESA_DEBUG_FLAGS & DEBUG_CONTEXT) {
       /* If the MESA_DEBUG env is set to "context", we'll turn on the
@@ -1301,7 +1301,7 @@ _mesa_free_errors_data(struct gl_context *ctx)
       ctx->Debug = NULL;
    }
 
-   mtx_destroy(&ctx->DebugMutex);
+   simple_mtx_destroy(&ctx->DebugMutex);
 }
 
 void GLAPIENTRY
diff --git a/src/mesa/main/errors.c b/src/mesa/main/errors.c
index 9173788d1de..35a2f66c31c 100644
--- a/src/mesa/main/errors.c
+++ b/src/mesa/main/errors.c
@@ -276,7 +276,7 @@ _mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... )
 
    do_output = should_output(ctx, error, fmtString);
 
-   mtx_lock(&ctx->DebugMutex);
+   simple_mtx_lock(&ctx->DebugMutex);
    if (ctx->Debug) {
       do_log = _mesa_debug_is_message_enabled(ctx->Debug,
                                               MESA_DEBUG_SOURCE_API,
@@ -287,7 +287,7 @@ _mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... )
    else {
       do_log = GL_FALSE;
    }
-   mtx_unlock(&ctx->DebugMutex);
+   simple_mtx_unlock(&ctx->DebugMutex);
 
    if (do_output || do_log) {
       char s[MAX_DEBUG_MESSAGE_LENGTH], s2[MAX_DEBUG_MESSAGE_LENGTH];
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 9a2c7ebbcf7..81165630d0d 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -89,9 +89,9 @@ delete_dummy_framebuffer(struct gl_framebuffer *fb)
 void
 _mesa_init_fbobjects(struct gl_context *ctx)
 {
-   mtx_init(&DummyFramebuffer.Mutex, mtx_plain);
-   mtx_init(&DummyRenderbuffer.Mutex, mtx_plain);
-   mtx_init(&IncompleteFramebuffer.Mutex, mtx_plain);
+   simple_mtx_init(&DummyFramebuffer.Mutex, mtx_plain);
+   simple_mtx_init(&DummyRenderbuffer.Mutex, mtx_plain);
+   simple_mtx_init(&IncompleteFramebuffer.Mutex, mtx_plain);
    DummyFramebuffer.Delete = delete_dummy_framebuffer;
    DummyRenderbuffer.Delete = delete_dummy_renderbuffer;
    IncompleteFramebuffer.Delete = delete_dummy_framebuffer;
@@ -558,7 +558,7 @@ _mesa_FramebufferRenderbuffer_sw(struct gl_context *ctx,
 {
    struct gl_renderbuffer_attachment *att;
 
-   mtx_lock(&fb->Mutex);
+   simple_mtx_lock(&fb->Mutex);
 
    att = get_attachment(ctx, fb, attachment, NULL);
    assert(att);
@@ -584,7 +584,7 @@ _mesa_FramebufferRenderbuffer_sw(struct gl_context *ctx,
 
    invalidate_framebuffer(fb);
 
-   mtx_unlock(&fb->Mutex);
+   simple_mtx_unlock(&fb->Mutex);
 }
 
 
@@ -3296,7 +3296,7 @@ _mesa_framebuffer_texture(struct gl_context *ctx, struct gl_framebuffer *fb,
 {
    FLUSH_VERTICES(ctx, _NEW_BUFFERS);
 
-   mtx_lock(&fb->Mutex);
+   simple_mtx_lock(&fb->Mutex);
    if (texObj) {
       if (attachment == GL_DEPTH_ATTACHMENT &&
           texObj == fb->Attachment[BUFFER_STENCIL].Texture &&
@@ -3355,7 +3355,7 @@ _mesa_framebuffer_texture(struct gl_context *ctx, struct gl_framebuffer *fb,
 
    invalidate_framebuffer(fb);
 
-   mtx_unlock(&fb->Mutex);
+   simple_mtx_unlock(&fb->Mutex);
 }
 
 
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index 039762a074a..663c4034d4a 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -131,7 +131,7 @@ _mesa_initialize_window_framebuffer(struct gl_framebuffer *fb,
 
    memset(fb, 0, sizeof(struct gl_framebuffer));
 
-   mtx_init(&fb->Mutex, mtx_plain);
+   simple_mtx_init(&fb->Mutex, mtx_plain);
 
    fb->RefCount = 1;
 
@@ -184,7 +184,7 @@ _mesa_initialize_user_framebuffer(struct gl_framebuffer *fb, GLuint name)
    fb->ColorReadBuffer = GL_COLOR_ATTACHMENT0_EXT;
    fb->_ColorReadBufferIndex = BUFFER_COLOR0;
    fb->Delete = _mesa_destroy_framebuffer;
-   mtx_init(&fb->Mutex, mtx_plain);
+   simple_mtx_init(&fb->Mutex, mtx_plain);
 }
 
 
@@ -215,7 +215,7 @@ _mesa_free_framebuffer_data(struct gl_framebuffer *fb)
    assert(fb);
    assert(fb->RefCount == 0);
 
-   mtx_destroy(&fb->Mutex);
+   simple_mtx_destroy(&fb->Mutex);
 
    for (i = 0; i < BUFFER_COUNT; i++) {
       struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
@@ -246,11 +246,11 @@ _mesa_reference_framebuffer_(struct gl_framebuffer **ptr,
       GLboolean deleteFlag = GL_FALSE;
       struct gl_framebuffer *oldFb = *ptr;
 
-      mtx_lock(&oldFb->Mutex);
+      simple_mtx_lock(&oldFb->Mutex);
       assert(oldFb->RefCount > 0);
       oldFb->RefCount--;
       deleteFlag = (oldFb->RefCount == 0);
-      mtx_unlock(&oldFb->Mutex);
+      simple_mtx_unlock(&oldFb->Mutex);
 
       if (deleteFlag)
          oldFb->Delete(oldFb);
@@ -259,9 +259,9 @@ _mesa_reference_framebuffer_(struct gl_framebuffer **ptr,
    }
 
    if (fb) {
-      mtx_lock(&fb->Mutex);
+      simple_mtx_lock(&fb->Mutex);
       fb->RefCount++;
-      mtx_unlock(&fb->Mutex);
+      simple_mtx_unlock(&fb->Mutex);
       *ptr = fb;
    }
 }
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index a6931649aa0..d0926308d0a 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -47,6 +47,7 @@
 #include "main/formats.h"       /* MESA_FORMAT_COUNT */
 #include "compiler/glsl/list.h"
 #include "util/bitscan.h"
+#include "util/simple_mtx.h"
 #include "util/u_dynarray.h"
 
 
@@ -969,7 +970,7 @@ typedef enum
  */
 struct gl_sampler_object
 {
-   mtx_t Mutex;
+   simple_mtx_t Mutex;
    GLuint Name;
    GLint RefCount;
    GLchar *Label;               /**< GL_KHR_debug */
@@ -1001,7 +1002,7 @@ struct gl_sampler_object
  */
 struct gl_texture_object
 {
-   mtx_t Mutex;      /**< for thread safety */
+   simple_mtx_t Mutex;      /**< for thread safety */
    GLint RefCount;             /**< reference count */
    GLuint Name;                /**< the user-visible texture object ID */
    GLchar *Label;               /**< GL_KHR_debug */
@@ -1391,7 +1392,7 @@ typedef enum {
  */
 struct gl_buffer_object
 {
-   mtx_t Mutex;
+   simple_mtx_t Mutex;
    GLint RefCount;
    GLuint Name;
    GLchar *Label;       /**< GL_KHR_debug */
@@ -3215,7 +3216,7 @@ struct gl_sync_object
  */
 struct gl_shared_state
 {
-   mtx_t Mutex;		   /**< for thread safety */
+   simple_mtx_t Mutex;		   /**< for thread safety */
    GLint RefCount;			   /**< Reference count */
    struct _mesa_HashTable *DisplayList;	   /**< Display lists hash table */
    struct _mesa_HashTable *BitmapAtlas;    /**< For optimized glBitmap text */
@@ -3299,7 +3300,7 @@ struct gl_shared_state
  */
 struct gl_renderbuffer
 {
-   mtx_t Mutex; /**< for thread safety */
+   simple_mtx_t Mutex; /**< for thread safety */
    GLuint ClassID;        /**< Useful for drivers */
    GLuint Name;
    GLchar *Label;         /**< GL_KHR_debug */
@@ -3377,7 +3378,7 @@ struct gl_renderbuffer_attachment
  */
 struct gl_framebuffer
 {
-   mtx_t Mutex;  /**< for thread safety */
+   simple_mtx_t Mutex;  /**< for thread safety */
    /**
     * If zero, this is a window system framebuffer.  If non-zero, this
     * is a FBO framebuffer; note that for some devices (i.e. those with
@@ -4926,7 +4927,7 @@ struct gl_context
    GLuint ErrorDebugCount;
 
    /* GL_ARB_debug_output/GL_KHR_debug */
-   mtx_t DebugMutex;
+   simple_mtx_t DebugMutex;
    struct gl_debug_state *Debug;
 
    GLenum RenderMode;        /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */
diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c
index 925001a76a3..0e017125ac0 100644
--- a/src/mesa/main/renderbuffer.c
+++ b/src/mesa/main/renderbuffer.c
@@ -40,7 +40,7 @@ _mesa_init_renderbuffer(struct gl_renderbuffer *rb, GLuint name)
 {
    GET_CURRENT_CONTEXT(ctx);
 
-   mtx_init(&rb->Mutex, mtx_plain);
+   simple_mtx_init(&rb->Mutex, mtx_plain);
 
    rb->ClassID = 0;
    rb->Name = name;
@@ -101,7 +101,7 @@ _mesa_new_renderbuffer(struct gl_context *ctx, GLuint name)
 void
 _mesa_delete_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb)
 {
-   mtx_destroy(&rb->Mutex);
+   simple_mtx_destroy(&rb->Mutex);
    free(rb->Label);
    free(rb);
 }
@@ -201,11 +201,11 @@ _mesa_reference_renderbuffer_(struct gl_renderbuffer **ptr,
       GLboolean deleteFlag = GL_FALSE;
       struct gl_renderbuffer *oldRb = *ptr;
 
-      mtx_lock(&oldRb->Mutex);
+      simple_mtx_lock(&oldRb->Mutex);
       assert(oldRb->RefCount > 0);
       oldRb->RefCount--;
       deleteFlag = (oldRb->RefCount == 0);
-      mtx_unlock(&oldRb->Mutex);
+      simple_mtx_unlock(&oldRb->Mutex);
 
       if (deleteFlag) {
          GET_CURRENT_CONTEXT(ctx);
@@ -218,9 +218,9 @@ _mesa_reference_renderbuffer_(struct gl_renderbuffer **ptr,
 
    if (rb) {
       /* reference new renderbuffer */
-      mtx_lock(&rb->Mutex);
+      simple_mtx_lock(&rb->Mutex);
       rb->RefCount++;
-      mtx_unlock(&rb->Mutex);
+      simple_mtx_unlock(&rb->Mutex);
       *ptr = rb;
    }
 }
diff --git a/src/mesa/main/robustness.c b/src/mesa/main/robustness.c
index 47402a29304..a61c07f125f 100644
--- a/src/mesa/main/robustness.c
+++ b/src/mesa/main/robustness.c
@@ -136,7 +136,7 @@ _mesa_GetGraphicsResetStatusARB( void )
        */
       status = ctx->Driver.GetGraphicsResetStatus(ctx);
 
-      mtx_lock(&ctx->Shared->Mutex);
+      simple_mtx_lock(&ctx->Shared->Mutex);
 
       /* If this context has not been affected by a GPU reset, check to see if
        * some other context in the share group has been affected by a reset.
@@ -150,7 +150,7 @@ _mesa_GetGraphicsResetStatusARB( void )
       }
 
       ctx->ShareGroupReset = ctx->Shared->ShareGroupReset;
-      mtx_unlock(&ctx->Shared->Mutex);
+      simple_mtx_unlock(&ctx->Shared->Mutex);
    }
 
    if (status != GL_NO_ERROR)
diff --git a/src/mesa/main/samplerobj.c b/src/mesa/main/samplerobj.c
index 2ecb01777b3..5ebf9e24f94 100644
--- a/src/mesa/main/samplerobj.c
+++ b/src/mesa/main/samplerobj.c
@@ -63,7 +63,7 @@ delete_sampler_object(struct gl_context *ctx,
                       struct gl_sampler_object *sampObj)
 {
    _mesa_delete_sampler_handles(ctx, sampObj);
-   mtx_destroy(&sampObj->Mutex);
+   simple_mtx_destroy(&sampObj->Mutex);
    free(sampObj->Label);
    free(sampObj);
 }
@@ -83,11 +83,11 @@ _mesa_reference_sampler_object_(struct gl_context *ctx,
       GLboolean deleteFlag = GL_FALSE;
       struct gl_sampler_object *oldSamp = *ptr;
 
-      mtx_lock(&oldSamp->Mutex);
+      simple_mtx_lock(&oldSamp->Mutex);
       assert(oldSamp->RefCount > 0);
       oldSamp->RefCount--;
       deleteFlag = (oldSamp->RefCount == 0);
-      mtx_unlock(&oldSamp->Mutex);
+      simple_mtx_unlock(&oldSamp->Mutex);
 
       if (deleteFlag)
          delete_sampler_object(ctx, oldSamp);
@@ -98,12 +98,12 @@ _mesa_reference_sampler_object_(struct gl_context *ctx,
 
    if (samp) {
       /* reference new sampler */
-      mtx_lock(&samp->Mutex);
+      simple_mtx_lock(&samp->Mutex);
       assert(samp->RefCount > 0);
 
       samp->RefCount++;
       *ptr = samp;
-      mtx_unlock(&samp->Mutex);
+      simple_mtx_unlock(&samp->Mutex);
    }
 }
 
@@ -114,7 +114,7 @@ _mesa_reference_sampler_object_(struct gl_context *ctx,
 static void
 _mesa_init_sampler_object(struct gl_sampler_object *sampObj, GLuint name)
 {
-   mtx_init(&sampObj->Mutex, mtx_plain);
+   simple_mtx_init(&sampObj->Mutex, mtx_plain);
    sampObj->Name = name;
    sampObj->RefCount = 1;
    sampObj->WrapS = GL_REPEAT;
diff --git a/src/mesa/main/shared.c b/src/mesa/main/shared.c
index 53b8597d560..e3417a4df30 100644
--- a/src/mesa/main/shared.c
+++ b/src/mesa/main/shared.c
@@ -66,7 +66,7 @@ _mesa_alloc_shared_state(struct gl_context *ctx)
    if (!shared)
       return NULL;
 
-   mtx_init(&shared->Mutex, mtx_plain);
+   simple_mtx_init(&shared->Mutex, mtx_plain);
 
    shared->DisplayList = _mesa_NewHashTable();
    shared->BitmapAtlas = _mesa_NewHashTable();
@@ -435,7 +435,7 @@ free_shared_state(struct gl_context *ctx, struct gl_shared_state *shared)
       _mesa_DeleteHashTable(shared->MemoryObjects);
    }
 
-   mtx_destroy(&shared->Mutex);
+   simple_mtx_destroy(&shared->Mutex);
    mtx_destroy(&shared->TexMutex);
 
    free(shared);
@@ -459,11 +459,11 @@ _mesa_reference_shared_state(struct gl_context *ctx,
       struct gl_shared_state *old = *ptr;
       GLboolean delete;
 
-      mtx_lock(&old->Mutex);
+      simple_mtx_lock(&old->Mutex);
       assert(old->RefCount >= 1);
       old->RefCount--;
       delete = (old->RefCount == 0);
-      mtx_unlock(&old->Mutex);
+      simple_mtx_unlock(&old->Mutex);
 
       if (delete) {
          free_shared_state(ctx, old);
@@ -474,9 +474,9 @@ _mesa_reference_shared_state(struct gl_context *ctx,
 
    if (state) {
       /* reference new state */
-      mtx_lock(&state->Mutex);
+      simple_mtx_lock(&state->Mutex);
       state->RefCount++;
       *ptr = state;
-      mtx_unlock(&state->Mutex);
+      simple_mtx_unlock(&state->Mutex);
    }
 }
diff --git a/src/mesa/main/syncobj.c b/src/mesa/main/syncobj.c
index 6a21309aadf..c38a5707ddb 100644
--- a/src/mesa/main/syncobj.c
+++ b/src/mesa/main/syncobj.c
@@ -177,7 +177,7 @@ struct gl_sync_object *
 _mesa_get_and_ref_sync(struct gl_context *ctx, GLsync sync, bool incRefCount)
 {
    struct gl_sync_object *syncObj = (struct gl_sync_object *) sync;
-   mtx_lock(&ctx->Shared->Mutex);
+   simple_mtx_lock(&ctx->Shared->Mutex);
    if (syncObj != NULL
       && _mesa_set_search(ctx->Shared->SyncObjects, syncObj) != NULL
       && !syncObj->DeletePending) {
@@ -187,7 +187,7 @@ _mesa_get_and_ref_sync(struct gl_context *ctx, GLsync sync, bool incRefCount)
    } else {
      syncObj = NULL;
    }
-   mtx_unlock(&ctx->Shared->Mutex);
+   simple_mtx_unlock(&ctx->Shared->Mutex);
    return syncObj;
 }
 
@@ -198,17 +198,17 @@ _mesa_unref_sync_object(struct gl_context *ctx, struct gl_sync_object *syncObj,
 {
    struct set_entry *entry;
 
-   mtx_lock(&ctx->Shared->Mutex);
+   simple_mtx_lock(&ctx->Shared->Mutex);
    syncObj->RefCount -= amount;
    if (syncObj->RefCount == 0) {
       entry = _mesa_set_search(ctx->Shared->SyncObjects, syncObj);
       assert (entry != NULL);
       _mesa_set_remove(ctx->Shared->SyncObjects, entry);
-      mtx_unlock(&ctx->Shared->Mutex);
+      simple_mtx_unlock(&ctx->Shared->Mutex);
 
       ctx->Driver.DeleteSyncObject(ctx, syncObj);
    } else {
-      mtx_unlock(&ctx->Shared->Mutex);
+      simple_mtx_unlock(&ctx->Shared->Mutex);
    }
 }
 
@@ -292,9 +292,9 @@ fence_sync(struct gl_context *ctx, GLenum condition, GLbitfield flags)
 
       ctx->Driver.FenceSync(ctx, syncObj, condition, flags);
 
-      mtx_lock(&ctx->Shared->Mutex);
+      simple_mtx_lock(&ctx->Shared->Mutex);
       _mesa_set_add(ctx->Shared->SyncObjects, syncObj);
-      mtx_unlock(&ctx->Shared->Mutex);
+      simple_mtx_unlock(&ctx->Shared->Mutex);
 
       return (GLsync)syncObj;
    }
diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index 1978898b8b9..71c6f813233 100644
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -274,7 +274,7 @@ _mesa_initialize_texture_object( struct gl_context *ctx,
 
    memset(obj, 0, sizeof(*obj));
    /* init the non-zero fields */
-   mtx_init(&obj->Mutex, mtx_plain);
+   simple_mtx_init(&obj->Mutex, mtx_plain);
    obj->RefCount = 1;
    obj->Name = name;
    obj->Target = target;
@@ -411,7 +411,7 @@ _mesa_delete_texture_object(struct gl_context *ctx,
    _mesa_reference_buffer_object(ctx, &texObj->BufferObject, NULL);
 
    /* destroy the mutex -- it may have allocated memory (eg on bsd) */
-   mtx_destroy(&texObj->Mutex);
+   simple_mtx_destroy(&texObj->Mutex);
 
    free(texObj->Label);
 
@@ -554,12 +554,12 @@ _mesa_reference_texobj_(struct gl_texture_object **ptr,
       assert(valid_texture_object(oldTex));
       (void) valid_texture_object; /* silence warning in release builds */
 
-      mtx_lock(&oldTex->Mutex);
+      simple_mtx_lock(&oldTex->Mutex);
       assert(oldTex->RefCount > 0);
       oldTex->RefCount--;
 
       deleteFlag = (oldTex->RefCount == 0);
-      mtx_unlock(&oldTex->Mutex);
+      simple_mtx_unlock(&oldTex->Mutex);
 
       if (deleteFlag) {
          /* Passing in the context drastically changes the driver code for
@@ -579,12 +579,12 @@ _mesa_reference_texobj_(struct gl_texture_object **ptr,
    if (tex) {
       /* reference new texture */
       assert(valid_texture_object(tex));
-      mtx_lock(&tex->Mutex);
+      simple_mtx_lock(&tex->Mutex);
       assert(tex->RefCount > 0);
 
       tex->RefCount++;
       *ptr = tex;
-      mtx_unlock(&tex->Mutex);
+      simple_mtx_unlock(&tex->Mutex);
    }
 }
 
@@ -1615,10 +1615,10 @@ bind_texture_object(struct gl_context *ctx, unsigned unit,
     */
    if (targetIndex != TEXTURE_EXTERNAL_INDEX) {
       bool early_out;
-      mtx_lock(&ctx->Shared->Mutex);
+      simple_mtx_lock(&ctx->Shared->Mutex);
       early_out = ((ctx->Shared->RefCount == 1)
                    && (texObj == texUnit->CurrentTex[targetIndex]));
-      mtx_unlock(&ctx->Shared->Mutex);
+      simple_mtx_unlock(&ctx->Shared->Mutex);
       if (early_out) {
          return;
       }
diff --git a/src/mesa/vbo/vbo_minmax_index.c b/src/mesa/vbo/vbo_minmax_index.c
index 1377926bbab..c9d20201672 100644
--- a/src/mesa/vbo/vbo_minmax_index.c
+++ b/src/mesa/vbo/vbo_minmax_index.c
@@ -115,7 +115,7 @@ vbo_get_minmax_cached(struct gl_buffer_object *bufferObj,
    if (!vbo_use_minmax_cache(bufferObj))
       return GL_FALSE;
 
-   mtx_lock(&bufferObj->Mutex);
+   simple_mtx_lock(&bufferObj->Mutex);
 
    if (bufferObj->MinMaxCacheDirty) {
       /* Disable the cache permanently for this BO if the number of hits
@@ -166,7 +166,7 @@ out_invalidate:
    }
 
 out_disable:
-   mtx_unlock(&bufferObj->Mutex);
+   simple_mtx_unlock(&bufferObj->Mutex);
    return found;
 }
 
@@ -184,7 +184,7 @@ vbo_minmax_cache_store(struct gl_context *ctx,
    if (!vbo_use_minmax_cache(bufferObj))
       return;
 
-   mtx_lock(&bufferObj->Mutex);
+   simple_mtx_lock(&bufferObj->Mutex);
 
    if (!bufferObj->MinMaxCache) {
       bufferObj->MinMaxCache =
@@ -223,7 +223,7 @@ vbo_minmax_cache_store(struct gl_context *ctx,
       free(entry);
 
 out:
-   mtx_unlock(&bufferObj->Mutex);
+   simple_mtx_unlock(&bufferObj->Mutex);
 }