diff options
| author |   Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 04:10:24 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 05:13:24 +1000 |
| commit | 4acfd707e28c820ba8ed8c12b497413a133d8c8f (patch) | |
| tree | 4c2bd62829b85c31bc5ad656e7140ed599038163 /drivers/gpu/drm/nouveau/nvif/class.h | |
| parent | drm/nouveau/dmaobj: switch to a slightly saner design (diff) | |
| download | linux-dev-4acfd707e28c820ba8ed8c12b497413a133d8c8f.tar.xz linux-dev-4acfd707e28c820ba8ed8c12b497413a133d8c8f.zip | |
drm/nouveau/dma: audit and version NV_DMA classes
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 '')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvif/class.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvif/class.h b/drivers/gpu/drm/nouveau/nvif/class.h index 0aa6272b972c..5279d0dd4d6f 100644 --- a/drivers/gpu/drm/nouveau/nvif/class.h +++ b/drivers/gpu/drm/nouveau/nvif/class.h @@ -8,6 +8,10 @@ /* the below match nvidia-assigned (either in hw, or sw) class numbers */ #define NV_DEVICE 0x00000080 +#define NV_DMA_FROM_MEMORY 0x00000002 +#define NV_DMA_TO_MEMORY 0x00000003 +#define NV_DMA_IN_MEMORY 0x0000003d + /******************************************************************************* * client @@ -79,4 +83,72 @@ struct nv_device_info_v0 { __u64 ram_user; }; + +/******************************************************************************* + * context dma + ******************************************************************************/ + +struct nv_dma_v0 { + __u8 version; +#define NV_DMA_V0_TARGET_VM 0x00 +#define NV_DMA_V0_TARGET_VRAM 0x01 +#define NV_DMA_V0_TARGET_PCI 0x02 +#define NV_DMA_V0_TARGET_PCI_US 0x03 +#define NV_DMA_V0_TARGET_AGP 0x04 + __u8 target; +#define NV_DMA_V0_ACCESS_VM 0x00 +#define NV_DMA_V0_ACCESS_RD 0x01 +#define NV_DMA_V0_ACCESS_WR 0x02 +#define NV_DMA_V0_ACCESS_RDWR (NV_DMA_V0_ACCESS_RD | NV_DMA_V0_ACCESS_WR) + __u8 access; + __u8 pad03[5]; + __u64 start; + __u64 limit; + /* ... chipset-specific class data */ +}; + +struct nv50_dma_v0 { + __u8 version; +#define NV50_DMA_V0_PRIV_VM 0x00 +#define NV50_DMA_V0_PRIV_US 0x01 +#define NV50_DMA_V0_PRIV__S 0x02 + __u8 priv; +#define NV50_DMA_V0_PART_VM 0x00 +#define NV50_DMA_V0_PART_256 0x01 +#define NV50_DMA_V0_PART_1KB 0x02 + __u8 part; +#define NV50_DMA_V0_COMP_NONE 0x00 +#define NV50_DMA_V0_COMP_1 0x01 +#define NV50_DMA_V0_COMP_2 0x02 +#define NV50_DMA_V0_COMP_VM 0x03 + __u8 comp; +#define NV50_DMA_V0_KIND_PITCH 0x00 +#define NV50_DMA_V0_KIND_VM 0x7f + __u8 kind; + __u8 pad05[3]; +}; + +struct gf100_dma_v0 { + __u8 version; +#define GF100_DMA_V0_PRIV_VM 0x00 +#define GF100_DMA_V0_PRIV_US 0x01 +#define GF100_DMA_V0_PRIV__S 0x02 + __u8 priv; +#define GF100_DMA_V0_KIND_PITCH 0x00 +#define GF100_DMA_V0_KIND_VM 0xff + __u8 kind; + __u8 pad03[5]; +}; + +struct gf110_dma_v0 { + __u8 version; +#define GF110_DMA_V0_PAGE_LP 0x00 +#define GF110_DMA_V0_PAGE_SP 0x01 + __u8 page; +#define GF110_DMA_V0_KIND_PITCH 0x00 +#define GF110_DMA_V0_KIND_VM 0xff + __u8 kind; + __u8 pad03[5]; +}; + #endif |