nv_rdfuc: dumb tool to pull back data from fuc engines

2 files changed, 67 insertions, 1 deletions

diff --git a/bin/Makefile.am b/bin/Makefile.am
index 082fe9724..58f2201a4 100644
--- a/bin/Makefile.am
+++ b/bin/Makefile.am
@@ -4,7 +4,7 @@ bin_PROGRAMS = \
 	       nv_ri08 nv_ri16 nv_ri32 nv_wi08 nv_wi16 nv_wi32 \
 	       nv_rv08 nv_rv16 nv_rv32 nv_wv08 nv_wv16 nv_wv32 \
 	       nv_rs08 nv_rs16 nv_rs32 nv_ws08 nv_ws16 nv_ws32 \
-	       nv_disp nv_i2c nv_aux nv_init
+	       nv_disp nv_i2c nv_aux nv_init nv_rdfuc
 
 AM_CPPFLAGS = -I$(top_srcdir)/nvkm/include \
 	      -I$(top_srcdir)/nvkm \
diff --git a/bin/nv_rdfuc.c b/bin/nv_rdfuc.c
new file mode 100644
index 000000000..540ac4253
--- /dev/null
+++ b/bin/nv_rdfuc.c
@@ -0,0 +1,66 @@
+#include <stdlib.h>
+#include <limits.h>
+#include <unistd.h>
+
+#include <core/os.h>
+#include <core/object.h>
+#include <core/class.h>
+
+int
+main(int argc, char **argv)
+{
+	struct nouveau_object *client;
+	struct nouveau_object *device;
+	u32 fucbase = ~0;
+	int segment = -1;
+	int ret, c, i;
+
+	while ((c = getopt(argc, argv, "-cd")) != -1) {
+		switch (c) {
+		case 'c':
+			segment = 0;
+			break;
+		case 'd':
+			segment = 1;
+			break;
+		case 1:
+			fucbase = strtol(optarg, NULL, 0);
+			break;
+		}
+	}
+
+	if (fucbase == ~0 || segment < 0 || segment > 1)
+		return 1;
+
+	ret = os_client_new(NULL, "info", argc, argv, &client);
+	if (ret)
+		return ret;
+
+	ret = nouveau_object_new(client, ~0, 0, 0x0080,
+				&(struct nv_device_class) {
+					.device = ~0ULL,
+					.disable = ~NV_DEVICE_DISABLE_MMIO,
+					.debug0 = 0,
+				}, sizeof(struct nv_device_class), &device);
+	if (ret)
+		return ret;
+
+	if (segment == 0) {
+		u32 size = (nv_ro32(device, fucbase + 0x0108) & 0x1ff) << 8;
+		nv_wo32(device, fucbase + 0x0180, 0x02000000);
+		for (i = 0; i < size; i += 4) {
+			if (!(i & 0xff))
+				nv_wo32(device, fucbase + 0x0188, i >> 8);
+			printf("0x%08x\n", nv_ro32(device, fucbase + 0x0184));
+		}
+	} else {
+		u32 size = (nv_ro32(device, fucbase + 0x0108) & 0x3fe00) >> 1;
+		nv_wo32(device, fucbase + 0x01c0, 0x02000000);
+		for (i = 0; i < size; i += 4)
+			printf("0x%08x\n", nv_ro32(device, fucbase + 0x01c4));
+	}
+
+
+	os_client_del(&client);
+	return 0;
+}