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drm/vmwgfx: Add support for multisampling 

Support for SVGA3D_SURFACE_MULTISAMPLE and surface mob size according
to sample count.

Signed-off-by: Deepak Rawat <drawat@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
This commit is contained in:
Deepak Rawat 2018-06-20 15:24:05 -07:00 committed by Thomas Hellstrom
parent 14b1c33e84
commit f9261b30d9
3 changed files with 34 additions and 5 deletions
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20
drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h
View File

@ -1235,6 +1235,26 @@ svga3dsurface_get_serialized_size(SVGA3dSurfaceFormat format,
return total_size * num_layers;
}
/**
* svga3dsurface_get_serialized_size_extended - Returns the number of bytes
* required for a surface with given parameters. Support for sample count.
*/
static inline u32
svga3dsurface_get_serialized_size_extended(SVGA3dSurfaceFormat format,
surf_size_struct base_level_size,
u32 num_mip_levels,
u32 num_layers,
u32 num_samples)
{
uint64_t total_size =
svga3dsurface_get_serialized_size(format,
base_level_size,
num_mip_levels,
num_layers);
total_size *= max_t(u32, 1, num_samples);
return min_t(uint64_t, total_size, (uint64_t)U32_MAX);
}
/**
* svga3dsurface_get_pixel_offset - Compute the offset (in bytes) to a pixel

2
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
View File

@ -83,7 +83,7 @@
struct vmw_fpriv {
struct drm_master *locked_master;
struct ttm_object_file *tfile;
bool gb_aware;
bool gb_aware; /* user-space is guest-backed aware */
};
struct vmw_buffer_object {

17
drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
View File

@ -1399,6 +1399,7 @@ int vmw_surface_gb_priv_define(struct drm_device *dev,
struct vmw_surface *srf;
int ret;
u32 num_layers = 1;
u32 sample_count = 1;
*srf_out = NULL;
@ -1481,11 +1482,15 @@ int vmw_surface_gb_priv_define(struct drm_device *dev,
else if (svga3d_flags & SVGA3D_SURFACE_CUBEMAP)
num_layers = SVGA3D_MAX_SURFACE_FACES;
if (srf->flags & SVGA3D_SURFACE_MULTISAMPLE)
sample_count = srf->multisample_count;
srf->res.backup_size =
svga3dsurface_get_serialized_size(srf->format,
srf->base_size,
srf->mip_levels[0],
num_layers);
svga3dsurface_get_serialized_size_extended(srf->format,
srf->base_size,
srf->mip_levels[0],
num_layers,
sample_count);
if (srf->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT)
srf->res.backup_size += sizeof(SVGA3dDXSOState);
@ -1595,6 +1600,10 @@ vmw_gb_surface_define_internal(struct drm_device *dev,
return -EINVAL;
}
if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) &&
req->base.multisample_count == 0)
return -EINVAL;
if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS)
return -EINVAL;