diff options
| author | Rhys Kidd <rhyskidd@gmail.com> | 2019-06-03 00:13:14 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-08-23 12:55:32 +1000 |
| commit | 66cbcc72ae34711854ae7af8056bfb7169f874fd (patch) | |
| tree | 235bd45d50173f433ac65c934d9c9d744e52be35 /drivers/gpu/drm | |
| parent | 607db661b7ac338943bb5efd94a7eac0051af440 (diff) | |
drm/nouveau/bios/init: handle INIT_RESET_BEGUN devinit opcode
Signal that the reset sequence has begun.
This opcode signals that the software reset sequence has begun.
Ordinarily, no actual operations are performed by the opcode.
However it allows for possible software work arounds by devinit
engines in software agents other than the VBIOS, such as the resman,
FCODE, and EFI driver.
Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c index 3f4f27d191ae..5e02832304e2 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c @@ -1935,6 +1935,17 @@ init_ram_restrict_pll(struct nvbios_init *init) } /** + * INIT_RESET_BEGUN - opcode 0x8c + * + */ +static void +init_reset_begun(struct nvbios_init *init) +{ + trace("RESET_BEGUN\n"); + init->offset += 1; +} + +/** * INIT_GPIO - opcode 0x8e * */ @@ -2260,7 +2271,7 @@ static struct nvbios_init_opcode { [0x79] = { init_pll }, [0x7a] = { init_zm_reg }, [0x87] = { init_ram_restrict_pll }, - [0x8c] = { init_reserved }, + [0x8c] = { init_reset_begun }, [0x8d] = { init_reserved }, [0x8e] = { init_gpio }, [0x8f] = { init_ram_restrict_zm_reg_group }, |