aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/core/core/falcon.c
diff options
context:
space:
mode:
authorBen Skeggs <bskeggs@redhat.com>2012-11-21 21:02:32 +1000
committerBen Skeggs <bskeggs@redhat.com>2012-11-29 09:58:00 +1000
commite3aaa946bd7d0073bd338c159778015ed32ecb5b (patch)
tree9b849ee560513bba1af919ce5142424f90f1947c /drivers/gpu/drm/nouveau/core/core/falcon.c
parent2d8b9ccbcee694c9ce681ec596df642e52ddcb15 (diff)
drm/nouveau: initial falcon (fuc) engine base class implementation
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/core/falcon.c')
-rw-r--r--drivers/gpu/drm/nouveau/core/core/falcon.c247
1 files changed, 247 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/core/falcon.c b/drivers/gpu/drm/nouveau/core/core/falcon.c
new file mode 100644
index 00000000000..6b0843c3387
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/core/falcon.c
@@ -0,0 +1,247 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <core/falcon.h>
+
+#include <subdev/timer.h>
+
+u32
+_nouveau_falcon_rd32(struct nouveau_object *object, u64 addr)
+{
+ struct nouveau_falcon *falcon = (void *)object;
+ return nv_rd32(falcon, falcon->addr + addr);
+}
+
+void
+_nouveau_falcon_wr32(struct nouveau_object *object, u64 addr, u32 data)
+{
+ struct nouveau_falcon *falcon = (void *)object;
+ nv_wr32(falcon, falcon->addr + addr, data);
+}
+
+int
+_nouveau_falcon_init(struct nouveau_object *object)
+{
+ struct nouveau_device *device = nv_device(object);
+ struct nouveau_falcon *falcon = (void *)object;
+ const struct firmware *fw;
+ char name[32] = "internal";
+ int ret, i;
+ u32 caps;
+
+ /* enable engine, and determine its capabilities */
+ ret = nouveau_engine_init(&falcon->base);
+ if (ret)
+ return ret;
+
+ if (device->chipset < 0xa3 ||
+ device->chipset == 0xaa || device->chipset == 0xac) {
+ falcon->version = 0;
+ falcon->secret = (falcon->addr == 0x087000) ? 1 : 0;
+ } else {
+ caps = nv_ro32(falcon, 0x12c);
+ falcon->version = (caps & 0x0000000f);
+ falcon->secret = (caps & 0x00000030) >> 4;
+ }
+
+ caps = nv_ro32(falcon, 0x108);
+ falcon->code.limit = (caps & 0x000001ff) << 8;
+ falcon->data.limit = (caps & 0x0003fe00) >> 1;
+
+ nv_debug(falcon, "falcon version: %d\n", falcon->version);
+ nv_debug(falcon, "secret level: %d\n", falcon->secret);
+ nv_debug(falcon, "code limit: %d\n", falcon->code.limit);
+ nv_debug(falcon, "data limit: %d\n", falcon->data.limit);
+
+ /* wait for 'uc halted' to be signalled before continuing */
+ if (falcon->secret) {
+ nv_wait(falcon, 0x008, 0x00000010, 0x00000010);
+ nv_wo32(falcon, 0x004, 0x00000010);
+ }
+
+ /* disable all interrupts */
+ nv_wo32(falcon, 0x014, 0xffffffff);
+
+ /* no default ucode provided by the engine implementation, try and
+ * locate a "self-bootstrapping" firmware image for the engine
+ */
+ if (!falcon->code.data) {
+ snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03x",
+ device->chipset, falcon->addr >> 12);
+
+ ret = request_firmware(&fw, name, &device->pdev->dev);
+ if (ret == 0) {
+ falcon->code.data = kmemdup(fw->data, fw->size, GFP_KERNEL);
+ falcon->code.size = fw->size;
+ falcon->data.data = NULL;
+ falcon->data.size = 0;
+ release_firmware(fw);
+ }
+
+ falcon->external = true;
+ }
+
+ /* next step is to try and load "static code/data segment" firmware
+ * images for the engine
+ */
+ if (!falcon->code.data) {
+ snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xd",
+ device->chipset, falcon->addr >> 12);
+
+ ret = request_firmware(&fw, name, &device->pdev->dev);
+ if (ret) {
+ nv_error(falcon, "unable to load firmware data\n");
+ return ret;
+ }
+
+ falcon->data.data = kmemdup(fw->data, fw->size, GFP_KERNEL);
+ falcon->data.size = fw->size;
+ release_firmware(fw);
+ if (!falcon->data.data)
+ return -ENOMEM;
+
+ snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xc",
+ device->chipset, falcon->addr >> 12);
+
+ ret = request_firmware(&fw, name, &device->pdev->dev);
+ if (ret) {
+ nv_error(falcon, "unable to load firmware code\n");
+ return ret;
+ }
+
+ falcon->code.data = kmemdup(fw->data, fw->size, GFP_KERNEL);
+ falcon->code.size = fw->size;
+ release_firmware(fw);
+ if (!falcon->code.data)
+ return -ENOMEM;
+ }
+
+ nv_debug(falcon, "firmware: %s (%s)\n", name, falcon->data.data ?
+ "static code/data segments" : "self-bootstrapping");
+
+ /* ensure any "self-bootstrapping" firmware image is in vram */
+ if (!falcon->data.data && !falcon->core) {
+ ret = nouveau_gpuobj_new(object->parent, NULL,
+ falcon->code.size, 256, 0,
+ &falcon->core);
+ if (ret) {
+ nv_error(falcon, "core allocation failed, %d\n", ret);
+ return ret;
+ }
+
+ for (i = 0; i < falcon->code.size; i += 4)
+ nv_wo32(falcon->core, i, falcon->code.data[i / 4]);
+ }
+
+ /* upload firmware bootloader (or the full code segments) */
+ if (falcon->core) {
+ if (device->card_type < NV_C0)
+ nv_wo32(falcon, 0x618, 0x04000000);
+ else
+ nv_wo32(falcon, 0x618, 0x00000114);
+ nv_wo32(falcon, 0x11c, 0);
+ nv_wo32(falcon, 0x110, falcon->core->addr >> 8);
+ nv_wo32(falcon, 0x114, 0);
+ nv_wo32(falcon, 0x118, 0x00006610);
+ } else {
+ if (falcon->code.size > falcon->code.limit ||
+ falcon->data.size > falcon->data.limit) {
+ nv_error(falcon, "ucode exceeds falcon limit(s)\n");
+ return -EINVAL;
+ }
+
+ if (falcon->version < 3) {
+ nv_wo32(falcon, 0xff8, 0x00100000);
+ for (i = 0; i < falcon->code.size / 4; i++)
+ nv_wo32(falcon, 0xff4, falcon->code.data[i]);
+ } else {
+ nv_wo32(falcon, 0x180, 0x01000000);
+ for (i = 0; i < falcon->code.size / 4; i++) {
+ if ((i & 0x3f) == 0)
+ nv_wo32(falcon, 0x188, i >> 6);
+ nv_wo32(falcon, 0x184, falcon->code.data[i]);
+ }
+ }
+ }
+
+ /* upload data segment (if necessary), zeroing the remainder */
+ if (falcon->version < 3) {
+ nv_wo32(falcon, 0xff8, 0x00000000);
+ for (i = 0; !falcon->core && i < falcon->data.size / 4; i++)
+ nv_wo32(falcon, 0xff4, falcon->data.data[i]);
+ for (; i < falcon->data.limit; i += 4)
+ nv_wo32(falcon, 0xff4, 0x00000000);
+ } else {
+ nv_wo32(falcon, 0x1c0, 0x01000000);
+ for (i = 0; !falcon->core && i < falcon->data.size / 4; i++)
+ nv_wo32(falcon, 0x1c4, falcon->data.data[i]);
+ for (; i < falcon->data.limit / 4; i++)
+ nv_wo32(falcon, 0x1c4, 0x00000000);
+ }
+
+ /* start it running */
+ nv_wo32(falcon, 0x10c, 0x00000001); /* BLOCK_ON_FIFO */
+ nv_wo32(falcon, 0x104, 0x00000000); /* ENTRY */
+ nv_wo32(falcon, 0x100, 0x00000002); /* TRIGGER */
+ nv_wo32(falcon, 0x048, 0x00000003); /* FIFO | CHSW */
+ return 0;
+}
+
+int
+_nouveau_falcon_fini(struct nouveau_object *object, bool suspend)
+{
+ struct nouveau_falcon *falcon = (void *)object;
+
+ if (!suspend) {
+ nouveau_gpuobj_ref(NULL, &falcon->core);
+ if (falcon->external) {
+ kfree(falcon->data.data);
+ kfree(falcon->code.data);
+ falcon->code.data = NULL;
+ }
+ }
+
+ nv_mo32(falcon, 0x048, 0x00000003, 0x00000000);
+ nv_wo32(falcon, 0x014, 0xffffffff);
+
+ return nouveau_engine_fini(&falcon->base, suspend);
+}
+
+int
+nouveau_falcon_create_(struct nouveau_object *parent,
+ struct nouveau_object *engine,
+ struct nouveau_oclass *oclass, u32 addr, bool enable,
+ const char *iname, const char *fname,
+ int length, void **pobject)
+{
+ struct nouveau_falcon *falcon;
+ int ret;
+
+ ret = nouveau_engine_create_(parent, engine, oclass, enable, iname,
+ fname, length, pobject);
+ falcon = *pobject;
+ if (ret)
+ return ret;
+
+ falcon->addr = addr;
+ return 0;
+}