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drm/nv50-/disp: audit and version DAC_PWR method

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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>
This commit is contained in:
Ben Skeggs
2014-08-10 04:10:26 +10:00
parent 2c04ae01df
commit bf0eb89859
13 changed files with 171 additions and 41 deletions
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43
drivers/gpu/drm/nouveau/nvif/class.h
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@@ -290,4 +290,47 @@ struct kepler_channel_gpfifo_a_v0 {
__u64 ioffset;
};
/*******************************************************************************
* legacy display
******************************************************************************/
/*******************************************************************************
* display
******************************************************************************/
#define NV50_DISP_MTHD 0x00
struct nv50_disp_mthd_v0 {
__u8 version;
__u8 method;
__u8 head;
__u8 pad03[5];
};
struct nv50_disp_mthd_v1 {
__u8 version;
#define NV50_DISP_MTHD_V1_DAC_PWR 0x10
#define NV50_DISP_MTHD_V1_DAC_LOAD 0x11
#define NV50_DISP_MTHD_V1_SOR_PWR 0x20
#define NV50_DISP_MTHD_V1_SOR_HDA_ELD 0x21
#define NV50_DISP_MTHD_V1_SOR_HDMI_PWR 0x22
#define NV50_DISP_MTHD_V1_SOR_LVDS_SCRIPT 0x23
#define NV50_DISP_MTHD_V1_SOR_DP_PWR 0x24
#define NV50_DISP_MTHD_V1_PIOR_PWR 0x30
__u8 method;
__u16 hasht;
__u16 hashm;
__u8 pad06[2];
};
struct nv50_disp_dac_pwr_v0 {
__u8 version;
__u8 state;
__u8 data;
__u8 vsync;
__u8 hsync;
__u8 pad05[3];
};
#endif