diff options
| -rw-r--r-- | shared-core/i915_dma.c | 56 | ||||
| -rw-r--r-- | shared-core/i915_drm.h | 29 |
2 files changed, 85 insertions, 0 deletions
diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c index 3373f1b0..943a1772 100644 --- a/shared-core/i915_dma.c +++ b/shared-core/i915_dma.c @@ -775,6 +775,61 @@ static int i915_setparam(DRM_IOCTL_ARGS) return 0; } +drm_i915_mmio_entry_t mmio_table[] = { + [MMIO_REGS_PS_DEPTH_COUNT] = { + I915_MMIO_MAY_READ|I915_MMIO_MAY_WRITE, + 0x2350, + 8 + } +}; + +static int mmio_table_size = sizeof(mmio_table)/sizeof(drm_i915_mmio_entry_t); + +static int i915_mmio(DRM_IOCTL_ARGS) +{ + char buf[32]; + DRM_DEVICE; + drm_i915_private_t *dev_priv = dev->dev_private; + drm_i915_mmio_entry_t *e; + drm_i915_mmio_t mmio; + void __iomem *base; + if (!dev_priv) { + DRM_ERROR("%s called with no initialization\n", __FUNCTION__); + return DRM_ERR(EINVAL); + } + DRM_COPY_FROM_USER_IOCTL(mmio, (drm_i915_setparam_t __user *) data, + sizeof(mmio)); + + if (mmio.reg >= mmio_table_size) + return DRM_ERR(EINVAL); + + e = &mmio_table[mmio.reg]; + base = dev_priv->mmio_map->handle + e->offset; + + switch (mmio.read_write) { + case I915_MMIO_READ: + if (!(e->flag & I915_MMIO_MAY_READ)) + return DRM_ERR(EINVAL); + memcpy_fromio(buf, base, e->size); + if (DRM_COPY_TO_USER(mmio.data, buf, e->size)) { + DRM_ERROR("DRM_COPY_TO_USER failed\n"); + return DRM_ERR(EFAULT); + } + break; + + case I915_MMIO_WRITE: + if (!(e->flag & I915_MMIO_MAY_WRITE)) + return DRM_ERR(EINVAL); + if(DRM_COPY_FROM_USER(buf, mmio.data, e->size)) { + DRM_ERROR("DRM_COPY_TO_USER failed\n"); + return DRM_ERR(EFAULT); + } + memcpy_toio(base, buf, e->size); + break; + } + return 0; +} + int i915_driver_load(drm_device_t *dev, unsigned long flags) { /* i915 has 4 more counters */ @@ -824,6 +879,7 @@ drm_ioctl_desc_t i915_ioctls[] = { [DRM_IOCTL_NR(DRM_I915_SET_VBLANK_PIPE)] = { i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_I915_GET_VBLANK_PIPE)] = { i915_vblank_pipe_get, DRM_AUTH }, [DRM_IOCTL_NR(DRM_I915_VBLANK_SWAP)] = {i915_vblank_swap, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_MMIO)] = {i915_mmio, DRM_AUTH}, }; int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls); diff --git a/shared-core/i915_drm.h b/shared-core/i915_drm.h index 9eec109e..22a81d14 100644 --- a/shared-core/i915_drm.h +++ b/shared-core/i915_drm.h @@ -152,6 +152,7 @@ typedef struct _drm_i915_sarea { #define DRM_I915_SET_VBLANK_PIPE 0x0d #define DRM_I915_GET_VBLANK_PIPE 0x0e #define DRM_I915_VBLANK_SWAP 0x0f +#define DRM_I915_MMIO 0x10 #define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t) #define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH) @@ -273,4 +274,32 @@ typedef struct drm_i915_vblank_swap { unsigned int sequence; } drm_i915_vblank_swap_t; +#define I915_MMIO_READ 0 +#define I915_MMIO_WRITE 1 + +#define I915_MMIO_MAY_READ 0x1 +#define I915_MMIO_MAY_WRITE 0x2 + +#define MMIO_REGS_IA_PRIMATIVES_COUNT 0 +#define MMIO_REGS_IA_VERTICES_COUNT 1 +#define MMIO_REGS_VS_INVOCATION_COUNT 2 +#define MMIO_REGS_GS_PRIMITIVES_COUNT 3 +#define MMIO_REGS_GS_INVOCATION_COUNT 4 +#define MMIO_REGS_CL_PRIMITIVES_COUNT 5 +#define MMIO_REGS_CL_INVOCATION_COUNT 6 +#define MMIO_REGS_PS_INVOCATION_COUNT 7 +#define MMIO_REGS_PS_DEPTH_COUNT 8 + +typedef struct drm_i915_mmio_entry { + unsigned int flag; + unsigned int offset; + unsigned int size; +}drm_i915_mmio_entry_t; + +typedef struct drm_i915_mmio { + unsigned int read_write:1; + unsigned int reg:31; + void __user *data; +} drm_i915_mmio_t; + #endif /* _I915_DRM_H_ */ |