/*
* Copyright ( c ) 2014 , NVIDIA CORPORATION . All rights reserved .
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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 <subdev/privring.h>
#include <subdev/timer.h>
static void
gk20a_privring_init_privring_ring(struct nvkm_subdev *privring)
{
struct nvkm_device *device = privring->device;
nvkm_mask(device, 0 x137250, 0 x3f, 0 );
nvkm_mask(device, 0 x000200, 0 x20, 0 );
udelay(20 );
nvkm_mask(device, 0 x000200, 0 x20, 0 x20);
nvkm_wr32(device, 0 x12004c, 0 x4);
nvkm_wr32(device, 0 x122204, 0 x2);
nvkm_rd32(device, 0 x122204);
/*
* Bug : increase clock timeout to avoid operation failure at high
* gpcclk rate .
*/
nvkm_wr32(device, 0 x122354, 0 x800);
nvkm_wr32(device, 0 x128328, 0 x800);
nvkm_wr32(device, 0 x124320, 0 x800);
}
static void
gk20a_privring_intr(struct nvkm_subdev *privring)
{
struct nvkm_device *device = privring->device;
u32 status0 = nvkm_rd32(device, 0 x120058);
if (status0 & 0 x7) {
nvkm_debug(privring, "resetting privring ring\n" );
gk20a_privring_init_privring_ring(privring);
}
/* Acknowledge interrupt */
nvkm_mask(device, 0 x12004c, 0 x2, 0 x2);
nvkm_msec(device, 2000 ,
if (!(nvkm_rd32(device, 0 x12004c) & 0 x0000003f))
break ;
);
}
static int
gk20a_privring_init(struct nvkm_subdev *privring)
{
gk20a_privring_init_privring_ring(privring);
return 0 ;
}
static const struct nvkm_subdev_func
gk20a_privring = {
.init = gk20a_privring_init,
.intr = gk20a_privring_intr,
};
int
gk20a_privring_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_subdev **pprivring)
{
return nvkm_subdev_new_(&gk20a_privring, device, type, inst, pprivring);
}
Messung V0.5 in Prozent C=95 H=93 G=93
¤ Dauer der Verarbeitung: 0.3 Sekunden
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