/*
* Copyright 2013 Ilia Mirkin
*
* 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 <engine/xtensa.h>
#include <core/gpuobj.h>
#include <engine/fifo.h>
static int
nvkm_xtensa_oclass_get(struct nvkm_oclass *oclass, int index)
{
struct nvkm_xtensa *xtensa = nvkm_xtensa(oclass->engine);
int c = 0 ;
while (xtensa->func->sclass[c].oclass) {
if (c++ == index) {
oclass->base = xtensa->func->sclass[index];
return index;
}
}
return c;
}
static int
nvkm_xtensa_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
int align, struct nvkm_gpuobj **pgpuobj)
{
return nvkm_gpuobj_new(object->engine->subdev.device, 0 x10000, align,
true , parent, pgpuobj);
}
static const struct nvkm_object_func
nvkm_xtensa_cclass = {
.bind = nvkm_xtensa_cclass_bind,
};
static void
nvkm_xtensa_intr(struct nvkm_engine *engine)
{
struct nvkm_xtensa *xtensa = nvkm_xtensa(engine);
struct nvkm_subdev *subdev = &xtensa->engine.subdev;
struct nvkm_device *device = subdev->device;
const u32 base = xtensa->addr;
u32 unk104 = nvkm_rd32(device, base + 0 xd04);
u32 intr = nvkm_rd32(device, base + 0 xc20);
u32 chan = nvkm_rd32(device, base + 0 xc28);
u32 unk10c = nvkm_rd32(device, base + 0 xd0c);
if (intr & 0 x10)
nvkm_warn(subdev, "Watchdog interrupt, engine hung.\n" );
nvkm_wr32(device, base + 0 xc20, intr);
intr = nvkm_rd32(device, base + 0 xc20);
if (unk104 == 0 x10001 && unk10c == 0 x200 && chan && !intr) {
nvkm_debug(subdev, "Enabling FIFO_CTRL\n" );
nvkm_mask(device, xtensa->addr + 0 xd94, 0 , xtensa->func->fifo_val);
}
}
static int
nvkm_xtensa_fini(struct nvkm_engine *engine, bool suspend)
{
struct nvkm_xtensa *xtensa = nvkm_xtensa(engine);
struct nvkm_device *device = xtensa->engine.subdev.device;
const u32 base = xtensa->addr;
nvkm_wr32(device, base + 0 xd84, 0 ); /* INTR_EN */
nvkm_wr32(device, base + 0 xd94, 0 ); /* FIFO_CTRL */
if (!suspend)
nvkm_memory_unref(&xtensa->gpu_fw);
return 0 ;
}
static int
nvkm_xtensa_init(struct nvkm_engine *engine)
{
struct nvkm_xtensa *xtensa = nvkm_xtensa(engine);
struct nvkm_subdev *subdev = &xtensa->engine.subdev;
struct nvkm_device *device = subdev->device;
const u32 base = xtensa->addr;
const struct firmware *fw;
char name[32 ];
int i, ret;
u64 addr, size;
u32 tmp;
if (!xtensa->gpu_fw) {
snprintf(name, sizeof (name), "nouveau/nv84_xuc%03x" ,
xtensa->addr >> 12 );
ret = request_firmware(&fw, name, device->dev);
if (ret) {
nvkm_warn(subdev, "unable to load firmware %s\n" , name);
return ret;
}
if (fw->size > 0 x40000) {
nvkm_warn(subdev, "firmware %s too large\n" , name);
release_firmware(fw);
return -EINVAL;
}
ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST,
0 x40000, 0 x1000, false ,
&xtensa->gpu_fw);
if (ret) {
release_firmware(fw);
return ret;
}
nvkm_kmap(xtensa->gpu_fw);
for (i = 0 ; i < fw->size / 4 ; i++)
nvkm_wo32(xtensa->gpu_fw, i * 4 , *((u32 *)fw->data + i));
nvkm_done(xtensa->gpu_fw);
release_firmware(fw);
}
addr = nvkm_memory_addr(xtensa->gpu_fw);
size = nvkm_memory_size(xtensa->gpu_fw);
nvkm_wr32(device, base + 0 xd10, 0 x1fffffff); /* ?? */
nvkm_wr32(device, base + 0 xd08, 0 x0fffffff); /* ?? */
nvkm_wr32(device, base + 0 xd28, xtensa->func->unkd28); /* ?? */
nvkm_wr32(device, base + 0 xc20, 0 x3f); /* INTR */
nvkm_wr32(device, base + 0 xd84, 0 x3f); /* INTR_EN */
nvkm_wr32(device, base + 0 xcc0, addr >> 8 ); /* XT_REGION_BASE */
nvkm_wr32(device, base + 0 xcc4, 0 x1c); /* XT_REGION_SETUP */
nvkm_wr32(device, base + 0 xcc8, size >> 8 ); /* XT_REGION_LIMIT */
tmp = nvkm_rd32(device, 0 x0);
nvkm_wr32(device, base + 0 xde0, tmp); /* SCRATCH_H2X */
nvkm_wr32(device, base + 0 xce8, 0 xf); /* XT_REGION_SETUP */
nvkm_wr32(device, base + 0 xc20, 0 x3f); /* INTR */
nvkm_wr32(device, base + 0 xd84, 0 x3f); /* INTR_EN */
return 0 ;
}
static void *
nvkm_xtensa_dtor(struct nvkm_engine *engine)
{
return nvkm_xtensa(engine);
}
static const struct nvkm_engine_func
nvkm_xtensa = {
.dtor = nvkm_xtensa_dtor,
.init = nvkm_xtensa_init,
.fini = nvkm_xtensa_fini,
.intr = nvkm_xtensa_intr,
.fifo.sclass = nvkm_xtensa_oclass_get,
.cclass = &nvkm_xtensa_cclass,
};
int
nvkm_xtensa_new_(const struct nvkm_xtensa_func *func, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, bool enable, u32 addr,
struct nvkm_engine **pengine)
{
struct nvkm_xtensa *xtensa;
if (!(xtensa = kzalloc(sizeof (*xtensa), GFP_KERNEL)))
return -ENOMEM;
xtensa->func = func;
xtensa->addr = addr;
*pengine = &xtensa->engine;
return nvkm_engine_ctor(&nvkm_xtensa, device, type, inst, enable, &xtensa->engine);
}
Messung V0.5 in Prozent C=93 H=96 G=94
¤ Dauer der Verarbeitung: 0.15 Sekunden
(vorverarbeitet am 2026-10-05)
¤
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