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| author | Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 04:10:26 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 05:28:07 +1000 |
| commit | bf0eb89859439f016a1fab4cdf737c95f36dbb2e (patch) | |
| tree | 59709bbd702fe904e63a2237d200162f90d820b4 /drivers/gpu/drm/nouveau/nv50_display.c | |
| parent | 2c04ae01df38f95dd3e553c85cdac670a80110f5 (diff) | |
| download | linux-bf0eb89859439f016a1fab4cdf737c95f36dbb2e.tar.gz linux-bf0eb89859439f016a1fab4cdf737c95f36dbb2e.tar.bz2 linux-bf0eb89859439f016a1fab4cdf737c95f36dbb2e.zip | |
drm/nv50-/disp: audit and version DAC_PWR method
The full object interfaces are about to be exposed to userspace, so we
need to check for any security-related issues and version the structs
to make it easier to handle any changes we may need in the future.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_display.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 2d9a02c4b87e..d3e6bd33670e 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1466,16 +1466,24 @@ nv50_dac_dpms(struct drm_encoder *encoder, int mode) { struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); struct nv50_disp *disp = nv50_disp(encoder->dev); - int or = nv_encoder->or; - u32 dpms_ctrl; + struct { + struct nv50_disp_mthd_v1 base; + struct nv50_disp_dac_pwr_v0 pwr; + } args = { + .base.version = 1, + .base.method = NV50_DISP_MTHD_V1_DAC_PWR, + .base.hasht = nv_encoder->dcb->hasht, + .base.hashm = nv_encoder->dcb->hashm, + .pwr.state = 1, + .pwr.data = 1, + .pwr.vsync = (mode != DRM_MODE_DPMS_SUSPEND && + mode != DRM_MODE_DPMS_OFF), + .pwr.hsync = (mode != DRM_MODE_DPMS_STANDBY && + mode != DRM_MODE_DPMS_OFF), + }; - dpms_ctrl = 0x00000000; - if (mode == DRM_MODE_DPMS_STANDBY || mode == DRM_MODE_DPMS_OFF) - dpms_ctrl |= 0x00000001; - if (mode == DRM_MODE_DPMS_SUSPEND || mode == DRM_MODE_DPMS_OFF) - dpms_ctrl |= 0x00000004; - nvif_exec(disp->disp, NV50_DISP_DAC_PWR + or, &dpms_ctrl, sizeof(dpms_ctrl)); + nvif_mthd(disp->disp, 0, &args, sizeof(args)); } static bool |