diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2024-09-20 15:25:10 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-10-15 11:17:25 -0400 |
| commit | c29aeadf0b122af6831abec06e3ec415447c2b71 (patch) | |
| tree | 8304369343e92f90b4fd3576bbfc2488597320d0 /drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | |
| parent | d594ddc6862d6a8de63dab68f0690be239649b33 (diff) | |
drm/amdgpu: Add NPS switch support for GC 9.4.3
Add dynamic NPS switch support for GC 9.4.3 variants. Only GC v9.4.3 and
GC v9.4.4 currently support this. NPS switch is only supported if an SOC
supports multiple NPS modes.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c index d1bd79bbae53..8a0a63ac88d2 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c @@ -401,6 +401,17 @@ static int nbio_v7_9_get_compute_partition_mode(struct amdgpu_device *adev) return px; } +static bool nbio_v7_9_is_nps_switch_requested(struct amdgpu_device *adev) +{ + u32 tmp; + + tmp = RREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_MEM_STATUS); + tmp = REG_GET_FIELD(tmp, BIF_BX_PF0_PARTITION_MEM_STATUS, + CHANGE_STATUE); + + /* 0x8 - NPS switch requested */ + return (tmp == 0x8); +} static u32 nbio_v7_9_get_memory_partition_mode(struct amdgpu_device *adev, u32 *supp_modes) { @@ -508,6 +519,7 @@ const struct amdgpu_nbio_funcs nbio_v7_9_funcs = { .remap_hdp_registers = nbio_v7_9_remap_hdp_registers, .get_compute_partition_mode = nbio_v7_9_get_compute_partition_mode, .get_memory_partition_mode = nbio_v7_9_get_memory_partition_mode, + .is_nps_switch_requested = nbio_v7_9_is_nps_switch_requested, .init_registers = nbio_v7_9_init_registers, .get_pcie_replay_count = nbio_v7_9_get_pcie_replay_count, .set_reg_remap = nbio_v7_9_set_reg_remap, |