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/*
* 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/device.h>
#include <core/engctx.h>
u32
_nvkm_xtensa_rd32(struct nvkm_object *object, u64 addr)
{
struct nvkm_xtensa *xtensa = (void *)object;
return nv_rd32(xtensa, xtensa->addr + addr);
}
void
_nvkm_xtensa_wr32(struct nvkm_object *object, u64 addr, u32 data)
{
struct nvkm_xtensa *xtensa = (void *)object;
nv_wr32(xtensa, xtensa->addr + addr, data);
}
int
_nvkm_xtensa_engctx_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_engctx *engctx;
int ret;
ret = nvkm_engctx_create(parent, engine, oclass, NULL, 0x10000, 0x1000,
NVOBJ_FLAG_ZERO_ALLOC, &engctx);
*pobject = nv_object(engctx);
return ret;
}
void
_nvkm_xtensa_intr(struct nvkm_subdev *subdev)
{
struct nvkm_xtensa *xtensa = (void *)subdev;
u32 unk104 = nv_ro32(xtensa, 0xd04);
u32 intr = nv_ro32(xtensa, 0xc20);
u32 chan = nv_ro32(xtensa, 0xc28);
u32 unk10c = nv_ro32(xtensa, 0xd0c);
if (intr & 0x10)
nv_warn(xtensa, "Watchdog interrupt, engine hung.\n");
nv_wo32(xtensa, 0xc20, intr);
intr = nv_ro32(xtensa, 0xc20);
if (unk104 == 0x10001 && unk10c == 0x200 && chan && !intr) {
nv_debug(xtensa, "Enabling FIFO_CTRL\n");
nv_mask(xtensa, xtensa->addr + 0xd94, 0, xtensa->fifo_val);
}
}
int
nvkm_xtensa_create_(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, u32 addr, bool enable,
const char *iname, const char *fname,
int length, void **pobject)
{
struct nvkm_xtensa *xtensa;
int ret;
ret = nvkm_engine_create_(parent, engine, oclass, enable, iname,
fname, length, pobject);
xtensa = *pobject;
if (ret)
return ret;
nv_subdev(xtensa)->intr = _nvkm_xtensa_intr;
xtensa->addr = addr;
return 0;
}
int
_nvkm_xtensa_init(struct nvkm_object *object)
{
struct nvkm_device *device = nv_device(object);
struct nvkm_xtensa *xtensa = (void *)object;
const struct firmware *fw;
char name[32];
int i, ret;
u32 tmp;
ret = nvkm_engine_init(&xtensa->base);
if (ret)
return ret;
if (!xtensa->gpu_fw) {
snprintf(name, sizeof(name), "nouveau/nv84_xuc%03x",
xtensa->addr >> 12);
ret = request_firmware(&fw, name, nv_device_base(device));
if (ret) {
nv_warn(xtensa, "unable to load firmware %s\n", name);
return ret;
}
if (fw->size > 0x40000) {
nv_warn(xtensa, "firmware %s too large\n", name);
release_firmware(fw);
return -EINVAL;
}
ret = nvkm_gpuobj_new(object, NULL, 0x40000, 0x1000, 0,
&xtensa->gpu_fw);
if (ret) {
release_firmware(fw);
return ret;
}
nv_debug(xtensa, "Loading firmware to address: 0x%llx\n",
xtensa->gpu_fw->addr);
for (i = 0; i < fw->size / 4; i++)
nv_wo32(xtensa->gpu_fw, i * 4, *((u32 *)fw->data + i));
release_firmware(fw);
}
nv_wo32(xtensa, 0xd10, 0x1fffffff); /* ?? */
nv_wo32(xtensa, 0xd08, 0x0fffffff); /* ?? */
nv_wo32(xtensa, 0xd28, xtensa->unkd28); /* ?? */
nv_wo32(xtensa, 0xc20, 0x3f); /* INTR */
nv_wo32(xtensa, 0xd84, 0x3f); /* INTR_EN */
nv_wo32(xtensa, 0xcc0, xtensa->gpu_fw->addr >> 8); /* XT_REGION_BASE */
nv_wo32(xtensa, 0xcc4, 0x1c); /* XT_REGION_SETUP */
nv_wo32(xtensa, 0xcc8, xtensa->gpu_fw->size >> 8); /* XT_REGION_LIMIT */
tmp = nv_rd32(xtensa, 0x0);
nv_wo32(xtensa, 0xde0, tmp); /* SCRATCH_H2X */
nv_wo32(xtensa, 0xce8, 0xf); /* XT_REGION_SETUP */
nv_wo32(xtensa, 0xc20, 0x3f); /* INTR */
nv_wo32(xtensa, 0xd84, 0x3f); /* INTR_EN */
return 0;
}
int
_nvkm_xtensa_fini(struct nvkm_object *object, bool suspend)
{
struct nvkm_xtensa *xtensa = (void *)object;
nv_wo32(xtensa, 0xd84, 0); /* INTR_EN */
nv_wo32(xtensa, 0xd94, 0); /* FIFO_CTRL */
if (!suspend)
nvkm_gpuobj_ref(NULL, &xtensa->gpu_fw);
return nvkm_engine_fini(&xtensa->base, suspend);
}
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