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drm/nouveau/secboot/gp102-: remove WAR for SEC2 RTOS start bug

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Appears to be fixed by "flcn/gp102-: improve implementation of
bind_context() on SEC2/GSP".

Tested on GP10[24678] and GV100.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2019-07-02 16:29:40 +10:00
parent 5210e967d3
commit 4d352dbd58
1 changed files with 0 additions and 29 deletions
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29
drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_msgqueue.c
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@ -164,41 +164,12 @@ acr_ls_sec2_post_run(const struct nvkm_acr *acr, const struct nvkm_secboot *sb)
struct nvkm_sec2 *sec = device->sec2;
/* on SEC arguments are always at the beginning of EMEM */
const u32 addr_args = 0x01000000;
u32 reg;
int ret;
ret = acr_ls_msgqueue_post_run(sec->queue, sec->falcon, addr_args);
if (ret)
return ret;
/*
* There is a bug where the LS firmware sometimes require to be started
* twice (this happens only on SEC). Detect and workaround that
* condition.
*
* Once started, the falcon will end up in STOPPED condition (bit 5)
* if successful, or in HALT condition (bit 4) if not.
*/
nvkm_msec(device, 1,
if ((reg = nvkm_falcon_rd32(sb->boot_falcon, 0x100) & 0x30) != 0)
break;
);
if (reg & BIT(4)) {
nvkm_debug(subdev, "applying workaround for start bug...\n");
nvkm_falcon_start(sb->boot_falcon);
nvkm_msec(subdev->device, 1,
if ((reg = nvkm_rd32(subdev->device,
sb->boot_falcon->addr + 0x100)
& 0x30) != 0)
break;
);
if (reg & BIT(4)) {
nvkm_error(subdev, "%s failed to start\n",
nvkm_secboot_falcon_name[acr->boot_falcon]);
return -EINVAL;
}
}
nvkm_debug(&sb->subdev, "%s started\n",
nvkm_secboot_falcon_name[acr->boot_falcon]);