r300: start moving new r300 cmdbuf into common code

7 files changed, 159 insertions, 16 deletions

diff --git a/src/mesa/drivers/dri/radeon/common_context.h b/src/mesa/drivers/dri/radeon/common_context.h
index e4d210392c..eb95dc9d75 100644
--- a/src/mesa/drivers/dri/radeon/common_context.h
+++ b/src/mesa/drivers/dri/radeon/common_context.h
@@ -1,6 +1,14 @@
 
 #ifndef COMMON_CONTEXT_H
 #define COMMON_CONTEXT_H
+
+#include "main/mm.h"
+#include "math/m_vector.h"
+#include "texmem.h"
+#include "tnl/t_context.h"
+#include "main/colormac.h"
+
+
 /* This union is used to avoid warnings/miscompilation
    with float to uint32_t casts due to strict-aliasing */
 typedef union { GLfloat f; uint32_t ui32; } float_ui32_type;
@@ -9,11 +17,6 @@ struct radeon_context;
 typedef struct radeon_context radeonContextRec;
 typedef struct radeon_context *radeonContextPtr;
 
-#include "main/mm.h"
-#include "math/m_vector.h"
-#include "texmem.h"
-#include "tnl/t_context.h"
-
 
 #define TEX_0   0x1
 #define TEX_1   0x2
@@ -256,6 +259,20 @@ struct radeon_state {
 	struct radeon_stencilbuffer_state stencil;
 };
 
+/**
+ * This structure holds the command buffer while it is being constructed.
+ *
+ * The first batch of commands in the buffer is always the state that needs
+ * to be re-emitted when the context is lost. This batch can be skipped
+ * otherwise.
+ */
+struct radeon_cmdbuf {
+	struct radeon_cs_manager    *csm;
+	struct radeon_cs            *cs;
+	int size; /** # of dwords total */
+	unsigned int flushing:1; /** whether we're currently in FlushCmdBufLocked */
+};
+
 struct radeon_context {
    GLcontext *glCtx;
    radeonScreenPtr radeonScreen;	/* Screen private DRI data */
@@ -308,6 +325,8 @@ struct radeon_context {
     */
    driOptionCache optionCache;
 
+   struct radeon_cmdbuf cmdbuf;
+
    struct {
       void (*get_lock)(radeonContextPtr radeon);
       void (*update_viewport_offset)(GLcontext *ctx);
diff --git a/src/mesa/drivers/dri/radeon/common_lock.c b/src/mesa/drivers/dri/radeon/common_lock.c
index d983e8ce92..09517450a9 100644
--- a/src/mesa/drivers/dri/radeon/common_lock.c
+++ b/src/mesa/drivers/dri/radeon/common_lock.c
@@ -84,7 +84,7 @@ void radeonUpdatePageFlipping(radeonContextPtr rmesa)
 #else
 /* Turn on/off page flipping according to the flags in the sarea:
  */
-static void radeonUpdatePageFlipping(radeonContextPtr rmesa)
+void radeonUpdatePageFlipping(radeonContextPtr rmesa)
 {
 	rmesa->doPageFlip = rmesa->sarea->pfState;
 	if (rmesa->glCtx->WinSysDrawBuffer) {
diff --git a/src/mesa/drivers/dri/radeon/common_lock.h b/src/mesa/drivers/dri/radeon/common_lock.h
index 50a4a0b05a..431b076f02 100644
--- a/src/mesa/drivers/dri/radeon/common_lock.h
+++ b/src/mesa/drivers/dri/radeon/common_lock.h
@@ -41,6 +41,11 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #ifndef COMMON_LOCK_H
 #define COMMON_LOCK_H
+
+#include "main/colormac.h"
+#include "radeon_screen.h"
+#include "common_context.h"
+
 extern void radeonGetLock(radeonContextPtr rmesa, GLuint flags);
 
 /* Turn DEBUG_LOCKING on to find locking conflicts.
@@ -93,19 +98,23 @@ extern int prevLockLine;
    do {								\
       char __ret = 0;						\
       DEBUG_CHECK_LOCK();					\
-      DRM_CAS( (rmesa)->dri.hwLock, (rmesa)->dri.hwContext,		\
-	       (DRM_LOCK_HELD | (rmesa)->dri.hwContext), __ret );	\
-      if ( __ret )							\
+      if (!(rmesa)->radeonScreen->driScreen->dri2.enabled) {		\
+	DRM_CAS( (rmesa)->dri.hwLock, (rmesa)->dri.hwContext,		\
+		 (DRM_LOCK_HELD | (rmesa)->dri.hwContext), __ret );	\
+	if ( __ret )							\
 	  radeonGetLock( (rmesa), 0 );					\
+      }									\
       DEBUG_LOCK();							\
    } while (0)
 
 #define UNLOCK_HARDWARE( rmesa )					\
    do {									\
-      DRM_UNLOCK( (rmesa)->dri.fd,					\
-		  (rmesa)->dri.hwLock,					\
-		  (rmesa)->dri.hwContext );				\
-      DEBUG_RESET();							\
+     if (!(rmesa)->radeonScreen->driScreen->dri2.enabled) {		\
+       DRM_UNLOCK( (rmesa)->dri.fd,					\
+		   (rmesa)->dri.hwLock,					\
+		   (rmesa)->dri.hwContext );				\
+       DEBUG_RESET();							\
+     }									\
    } while (0)
 
 #endif
diff --git a/src/mesa/drivers/dri/radeon/common_misc.c b/src/mesa/drivers/dri/radeon/common_misc.c
index eab9cc74e3..ba3c76daa9 100644
--- a/src/mesa/drivers/dri/radeon/common_misc.c
+++ b/src/mesa/drivers/dri/radeon/common_misc.c
@@ -51,11 +51,16 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "drirenderbuffer.h"
 #include "vblank.h"
 
-
+#include "radeon_bo.h"
+#include "radeon_cs.h"
+#include "radeon_bo_legacy.h"
+#include "radeon_cs_legacy.h"
+#include "radeon_bo_gem.h"
+#include "radeon_cs_gem.h"
 #include "dri_util.h"
 #include "radeon_drm.h"
-#include "radeon_screen.h"
 #include "radeon_buffer.h"
+#include "radeon_screen.h"
 #include "common_context.h"
 #include "common_misc.h"
 #include "common_lock.h"
@@ -577,3 +582,106 @@ void radeonCopySubBuffer(__DRIdrawablePrivate * dPriv,
     }
 }
 
+/* cmdbuffer */
+/**
+ * Send the current command buffer via ioctl to the hardware.
+ */
+int rcommonFlushCmdBufLocked(radeonContextPtr rmesa, const char *caller)
+{
+	int ret = 0;
+
+	if (rmesa->cmdbuf.flushing) {
+		fprintf(stderr, "Recursive call into r300FlushCmdBufLocked!\n");
+		exit(-1);
+	}
+	rmesa->cmdbuf.flushing = 1;
+	if (rmesa->cmdbuf.cs->cdw) {
+		ret = radeon_cs_emit(rmesa->cmdbuf.cs);
+		rmesa->vtbl.set_all_dirty(rmesa->glCtx);
+	}
+	radeon_cs_erase(rmesa->cmdbuf.cs);
+	rmesa->cmdbuf.flushing = 0;
+	return ret;
+}
+
+int rcommonFlushCmdBuf(radeonContextPtr rmesa, const char *caller)
+{
+	int ret;
+
+	LOCK_HARDWARE(rmesa);
+	ret = rcommonFlushCmdBufLocked(rmesa, caller);
+	UNLOCK_HARDWARE(rmesa);
+
+	if (ret) {
+		fprintf(stderr, "drmRadeonCmdBuffer: %d\n", ret);
+		_mesa_exit(ret);
+	}
+
+	return ret;
+}
+
+/**
+ * Make sure that enough space is available in the command buffer
+ * by flushing if necessary.
+ *
+ * \param dwords The number of dwords we need to be free on the command buffer
+ */
+void rcommonEnsureCmdBufSpace(radeonContextPtr rmesa, int dwords, const char *caller)
+{
+	if ((rmesa->cmdbuf.cs->cdw + dwords + 128) > rmesa->cmdbuf.size ||
+	    radeon_cs_need_flush(rmesa->cmdbuf.cs)) {
+		rcommonFlushCmdBuf(rmesa, caller);
+    }
+}
+
+void rcommonInitCmdBuf(radeonContextPtr rmesa, int max_state_size)
+{
+	GLuint size;
+	/* Initialize command buffer */
+	size = 256 * driQueryOptioni(&rmesa->optionCache,
+				     "command_buffer_size");
+	if (size < 2 * max_state_size) {
+		size = 2 * max_state_size + 65535;
+	}
+	if (size > 64 * 256)
+		size = 64 * 256;
+
+	size = 64 * 1024 / 4;
+
+	if (RADEON_DEBUG & (DEBUG_IOCTL | DEBUG_DMA)) {
+		fprintf(stderr, "sizeof(drm_r300_cmd_header_t)=%zd\n",
+			sizeof(drm_r300_cmd_header_t));
+		fprintf(stderr, "sizeof(drm_radeon_cmd_buffer_t)=%zd\n",
+			sizeof(drm_radeon_cmd_buffer_t));
+		fprintf(stderr,
+			"Allocating %d bytes command buffer (max state is %d bytes)\n",
+			size * 4, max_state_size * 4);
+	}
+
+	if (rmesa->radeonScreen->kernel_mm) {
+		int fd = rmesa->radeonScreen->driScreen->fd;
+		rmesa->cmdbuf.csm = radeon_cs_manager_gem_ctor(fd);
+	} else {
+		rmesa->cmdbuf.csm = radeon_cs_manager_legacy_ctor(rmesa);
+	}
+	if (rmesa->cmdbuf.csm == NULL) {
+		/* FIXME: fatal error */
+		return;
+	}
+	rmesa->cmdbuf.cs = radeon_cs_create(rmesa->cmdbuf.csm, size);
+	assert(rmesa->cmdbuf.cs != NULL);
+	rmesa->cmdbuf.size = size;
+
+}
+/**
+ * Destroy the command buffer
+ */
+void rcommonDestroyCmdBuf(radeonContextPtr rmesa)
+{
+	radeon_cs_destroy(rmesa->cmdbuf.cs);
+	if (rmesa->radeonScreen->driScreen->dri2.enabled || rmesa->radeonScreen->kernel_mm) {
+		radeon_cs_manager_gem_dtor(rmesa->cmdbuf.csm);
+	} else {
+		radeon_cs_manager_legacy_dtor(rmesa->cmdbuf.csm);
+	}
+}
diff --git a/src/mesa/drivers/dri/radeon/common_misc.h b/src/mesa/drivers/dri/radeon/common_misc.h
index cc4832c75e..7057ad941f 100644
--- a/src/mesa/drivers/dri/radeon/common_misc.h
+++ b/src/mesa/drivers/dri/radeon/common_misc.h
@@ -1,6 +1,7 @@
 #ifndef COMMON_MISC_H
 #define COMMON_MISC_H
 
+#include "common_context.h"
 void radeonRecalcScissorRects(radeonContextPtr radeon);
 void radeonSetCliprects(radeonContextPtr radeon);
 void radeonUpdateScissor( GLcontext *ctx );
@@ -17,4 +18,9 @@ void radeonCopySubBuffer(__DRIdrawablePrivate * dPriv,
 
 void radeonUpdatePageFlipping(radeonContextPtr rmesa);
 
+void rcommonEnsureCmdBufSpace(radeonContextPtr rmesa, int dwords, const char *caller);
+int rcommonFlushCmdBuf(radeonContextPtr rmesa, const char *caller);
+int rcommonFlushCmdBufLocked(radeonContextPtr rmesa, const char *caller);
+void rcommonInitCmdBuf(radeonContextPtr rmesa, int max_state_size);
+void rcommonDestroyCmdBuf(radeonContextPtr rmesa);
 #endif
diff --git a/src/mesa/drivers/dri/radeon/radeon_cs_legacy.h b/src/mesa/drivers/dri/radeon/radeon_cs_legacy.h
index 71a4dad58d..4da2479eee 100644
--- a/src/mesa/drivers/dri/radeon/radeon_cs_legacy.h
+++ b/src/mesa/drivers/dri/radeon/radeon_cs_legacy.h
@@ -33,7 +33,7 @@
 #define RADEON_CS_LEGACY_H
 
 #include "radeon_cs.h"
-#include "radeon_context.h"
+#include "common_context.h"
 
 struct radeon_cs_manager *radeon_cs_manager_legacy_ctor(struct radeon_context *ctx);
 void radeon_cs_manager_legacy_dtor(struct radeon_cs_manager *csm);
diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c
index c099d0ee34..e655408338 100644
--- a/src/mesa/drivers/dri/radeon/radeon_screen.c
+++ b/src/mesa/drivers/dri/radeon/radeon_screen.c
@@ -47,6 +47,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "radeon_macros.h"
 #include "radeon_screen.h"
 #include "radeon_buffer.h"
+#include "common_misc.h"
 #if !RADEON_COMMON
 #include "radeon_context.h"
 #include "radeon_span.h"