[PATCH weston v2 4/4] simple-dmabuf-drm: support etnaviv drm as well

[Guido Günther]

---
 Makefile.am                 |  1 +
 clients/simple-dmabuf-drm.c | 73 +++++++++++++++++++++++++++++++++++++++++++++
 configure.ac                |  5 +++-
 3 files changed, 78 insertions(+), 1 deletion(-)

diff --git a/Makefile.am b/Makefile.am
index c2d448e7..19319fa2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -626,6 +626,7 @@ nodist_weston_simple_dmabuf_drm_SOURCES =		\
 weston_simple_dmabuf_drm_CFLAGS = $(AM_CFLAGS) $(SIMPLE_DMABUF_DRM_CLIENT_CFLAGS)
 weston_simple_dmabuf_drm_LDADD = $(SIMPLE_DMABUF_DRM_CLIENT_LIBS) \
 	$(LIBDRM_PLATFORM_FREEDRENO_LIBS) \
+	$(LIBDRM_PLATFORM_ETNAVIV_LIBS)   \
 	$(LIBDRM_PLATFORM_INTEL_LIBS)     \
 	libshared.la
 endif
diff --git a/clients/simple-dmabuf-drm.c b/clients/simple-dmabuf-drm.c
index 492c9667..a445ffb2 100644
--- a/clients/simple-dmabuf-drm.c
+++ b/clients/simple-dmabuf-drm.c
@@ -48,6 +48,9 @@
 #ifdef HAVE_LIBDRM_FREEDRENO
 #include <freedreno/freedreno_drmif.h>
 #endif
+#ifdef HAVE_LIBDRM_ETNAVIV
+#include <etnaviv_drmif.h>
+#endif
 #include <drm_fourcc.h>
 
 #include <wayland-client.h>
@@ -101,6 +104,10 @@ struct buffer {
 	struct fd_device *fd_dev;
 	struct fd_bo *fd_bo;
 #endif /* HAVE_LIBDRM_FREEDRENO */
+#if HAVE_LIBDRM_ETNAVIV
+	struct etna_device *etna_dev;
+	struct etna_bo *etna_bo;
+#endif /* HAVE_LIBDRM_ETNAVIV */
 
 	uint32_t gem_handle;
 	int dmabuf_fd;
@@ -264,6 +271,62 @@ fd_device_destroy(struct buffer *buf)
 	fd_device_del(buf->fd_dev);
 }
 #endif /* HAVE_LIBDRM_FREEDRENO */
+#ifdef HAVE_LIBDRM_ETNAVIV
+#define ROUND_DOWN(v, a) ((v) & ~(a - 1))
+
+static int
+etna_alloc_bo(struct buffer *buf)
+{
+	int flags = DRM_ETNA_GEM_CACHE_WC;
+	int size = buf->width * buf->height * buf->bpp / 8;
+	buf->etna_dev = etna_device_new(buf->drm_fd);
+
+	buf->etna_bo = etna_bo_new(buf->etna_dev, size, flags);
+
+	if (!buf->etna_bo)
+		return 0;
+	buf->stride = ROUND_DOWN(buf->width, 32) * buf->bpp / 8;
+	return 1;
+}
+
+static void
+etna_free_bo(struct buffer *buf)
+{
+	etna_bo_del(buf->etna_bo);
+}
+
+static int
+etna_bo_export_to_prime(struct buffer *buf)
+{
+	buf->dmabuf_fd = etna_bo_dmabuf(buf->etna_bo);
+	if (buf->dmabuf_fd > 0)
+		return 0;
+
+	return 1;
+}
+
+static int
+etna_map_bo(struct buffer *buf)
+{
+	buf->mmap = etna_bo_map(buf->etna_bo);
+
+	if (buf->mmap != NULL)
+		return 1;
+
+	return 0;
+}
+
+static void
+etna_unmap_bo(struct buffer *buf)
+{
+}
+
+static void
+etna_device_destroy(struct buffer *buf)
+{
+	etna_device_del(buf->etna_dev);
+}
+#endif /* HAVE_LIBDRM_ENTAVIV */
 
 static void
 fill_content(struct buffer *my_buf)
@@ -331,6 +394,16 @@ drm_device_init(struct buffer *buf)
 		dev->unmap_bo = fd_unmap_bo;
 		dev->device_destroy = fd_device_destroy;
 	}
+#endif
+#ifdef HAVE_LIBDRM_ETNAVIV
+	else if (!strcmp(dev->name, "etnaviv")) {
+		dev->alloc_bo = etna_alloc_bo;
+		dev->free_bo = etna_free_bo;
+		dev->export_bo_to_prime = etna_bo_export_to_prime;
+		dev->map_bo = etna_map_bo;
+		dev->unmap_bo = etna_unmap_bo;
+		dev->device_destroy = etna_device_destroy;
+	}
 #endif
 	else {
 		fprintf(stderr, "Error: drm device %s unsupported.\n",
diff --git a/configure.ac b/configure.ac
index dc2fbe93..e86c31fa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -393,11 +393,14 @@ if ! test "x$enable_simple_dmabuf_drm_client" = "xno"; then
   PKG_CHECK_MODULES(LIBDRM_PLATFORM_INTEL, [libdrm_intel],
       AC_DEFINE([HAVE_LIBDRM_INTEL], [1], [Build intel dmabuf client]) have_simple_dmabuf_drm_client=yes,
       [true])
+  PKG_CHECK_MODULES(LIBDRM_PLATFORM_ETNAVIV, [libdrm_etnaviv],
+      AC_DEFINE([HAVE_LIBDRM_ETNAVIV], [1], [Build etnaviv dmabuf client]) have_simple_dmabuf_drm_client=yes,
+      [have_etnaviv=no])
 
   if test "x$have_simple_dmabuf_drm_client" != "xyes" -o \
 	  "x$have_simple_dmabuf_libs" = "xno" && \
 	  "x$enable_simple_dmabuf_drm_client" = "xyes"; then
-    AC_MSG_ERROR([DRM dmabuf client explicitly enabled, but libdrm_intel or libdrm_freedreno not found])
+    AC_MSG_ERROR([DRM dmabuf client explicitly enabled, but neither libdrm_intel, libdrm_freedreno or libdrm_etnaviv found])
   fi
 
   if test "x$have_simple_dmabuf_drm_client" = "xyes" -a "x$have_simple_dmabuf_libs"; then
-- 
2.16.1