diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index dd865beb39a8..a96f2e369d1a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -569,6 +569,26 @@ int psp_wait_for(struct psp_context *psp, uint32_t reg_index, return -ETIME; } +int psp_wait_for_spirom_update(struct psp_context *psp, uint32_t reg_index, + uint32_t reg_val, uint32_t mask, uint32_t msec_timeout) +{ + uint32_t val; + int i; + struct amdgpu_device *adev = psp->adev; + + if (psp->adev->no_hw_access) + return 0; + + for (i = 0; i < msec_timeout; i++) { + val = RREG32(reg_index); + if ((val & mask) == reg_val) + return 0; + msleep(1); + } + + return -ETIME; +} + static const char *psp_gfx_cmd_name(enum psp_gfx_cmd_id cmd_id) { switch (cmd_id) { |