diff options
| author | Michel Dänzer <michel@tungstengraphics.com> | 2006-07-19 19:07:06 +0200 |
|---|---|---|
| committer | Michel Dänzer <michel@tungstengraphics.com> | 2006-07-19 19:07:06 +0200 |
| commit | e337eadcec9c1e2cf885167c076ab2407bd6c090 (patch) | |
| tree | 88492891de10b89384f56b65a054aa83a983eb64 /shared-core/radeon_state.c | |
| parent | 7dea64677b62418b14d34c41399cdb8bf8b817cd (diff) | |
Implement RADEON_PARAM_SCRATCH_OFFSET getparam.
When this succeeds, userspace can read the scratch register contents from the
mapped writeback page directly.
Diffstat (limited to 'shared-core/radeon_state.c')
| -rw-r--r-- | shared-core/radeon_state.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/shared-core/radeon_state.c b/shared-core/radeon_state.c index 2c169ac5..58251dd7 100644 --- a/shared-core/radeon_state.c +++ b/shared-core/radeon_state.c @@ -3025,6 +3025,11 @@ static int radeon_cp_getparam(DRM_IOCTL_ARGS) case RADEON_PARAM_GART_TEX_HANDLE: value = dev_priv->gart_textures_offset; break; + case RADEON_PARAM_SCRATCH_OFFSET: + if (!dev_priv->writeback_works) + return DRM_ERR(EINVAL); + value = RADEON_SCRATCH_REG_OFFSET; + break; case RADEON_PARAM_CARD_TYPE: if (dev_priv->flags & CHIP_IS_PCIE) |