diff options
| author | Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> | 2022-04-05 20:00:13 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 16:48:42 +0300 |
| commit | ea2d2f8ececdd4c778b66e19b82ce278dfc5e1c4 (patch) | |
| tree | e25d554abf3e7e7253dda0bf8d0950544621886b /drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | |
| parent | 6b7ec18b045ff524eab94340e18feefe9a783d2e (diff) | |
| download | linux-ea2d2f8ececdd4c778b66e19b82ce278dfc5e1c4.tar.xz | |
drm/amdgpu: detect current GPU memory partition mode
- Add helpers to detect the current GPU memory partition.
- Add current memory partition mode sysfs node.
Tested-by: Ori Messinger <Ori.Messinger@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@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 78eab4d48e38..fa4b423c399b 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c @@ -30,6 +30,8 @@ #include "ivsrcid/nbio/irqsrcs_nbif_7_4.h" #include <uapi/linux/kfd_ioctl.h> +#define NPS_MODE_MASK 0x000000FFL + static void nbio_v7_9_remap_hdp_registers(struct amdgpu_device *adev) { WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL, @@ -406,6 +408,15 @@ static void nbio_v7_9_set_compute_partition_mode(struct amdgpu_device *adev, WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_COMPUTE_STATUS, tmp); } +static enum amdgpu_memory_partition nbio_v7_9_get_memory_partition_mode(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, NPS_MODE); + + return ffs(tmp); +} + const struct amdgpu_nbio_funcs nbio_v7_9_funcs = { .get_hdp_flush_req_offset = nbio_v7_9_get_hdp_flush_req_offset, .get_hdp_flush_done_offset = nbio_v7_9_get_hdp_flush_done_offset, @@ -428,4 +439,5 @@ 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, .set_compute_partition_mode = nbio_v7_9_set_compute_partition_mode, + .get_memory_partition_mode = nbio_v7_9_get_memory_partition_mode, }; |