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22 May 2024
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23 May 2024
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@atemu12:matrix.orgAtemuA little question about mesa OGL drivers: Why are nearly all of them smlinks to the crocus driver? 10:09:56
@atemu12:matrix.orgAtemuIsn't crocus the driver for old intel iGPUs?10:10:05
@atemu12:matrix.orgAtemu * Isn't crocus the gallium driver for old intel iGPUs?10:10:18
@atemu12:matrix.orgAtemu
$ l /run/opengl-driver/lib/dri/
total 52M
-r-xr-xr-x  2 root root 35M 1970-01-01 01:00 crocus_dri.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 d3d12_dri.so -> crocus_dri.so
-r-xr-xr-x  2 root root 17M 1970-01-01 01:00 d3d12_drv_video.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 i915_dri.so -> crocus_dri.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 iris_dri.so -> crocus_dri.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 kms_swrast_dri.so -> crocus_dri.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 nouveau_dri.so -> crocus_dri.so
lrwxrwxrwx 21 root root  18 1970-01-01 01:00 nouveau_drv_video.so -> d3d12_drv_video.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 r300_dri.so -> crocus_dri.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 r600_dri.so -> crocus_dri.so
lrwxrwxrwx 21 root root  18 1970-01-01 01:00 r600_drv_video.so -> d3d12_drv_video.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 radeonsi_dri.so -> crocus_dri.so
lrwxrwxrwx 21 root root  18 1970-01-01 01:00 radeonsi_drv_video.so -> d3d12_drv_video.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 swrast_dri.so -> crocus_dri.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 virtio_gpu_dri.so -> crocus_dri.so
lrwxrwxrwx 21 root root  18 1970-01-01 01:00 virtio_gpu_drv_video.so -> d3d12_drv_video.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 vmwgfx_dri.so -> crocus_dri.so
lrwxrwxrwx 61 root root  13 1970-01-01 01:00 zink_dri.so -> crocus_dri.so
10:12:00
@k900:0upti.meK900
In reply to @atemu12:matrix.org
A little question about mesa OGL drivers: Why are nearly all of them smlinks to the crocus driver?
They're all symlinks to one megadriver blob
10:29:00
@k900:0upti.meK900Crocus is just first alphabetically10:29:13
@k900:0upti.meK900So it gets to be the real driver 10:29:20
@atemu12:matrix.orgAtemuOh wow lol10:30:56
@k900:0upti.meK900They do it because a lot of the driver code is actually shared between drivers 10:44:45
@k900:0upti.meK900So it makes sense to link everything into one big blov10:44:56
@k900:0upti.meK900* So it makes sense to link everything into one big blob10:45:06
@k900:0upti.meK900Instead of having to copy the shared code into every driver 10:45:15
@atemu12:matrix.orgAtemuSure that part is fine, using the first in an alphabetical list as the real driver binary however...10:52:58
@k900:0upti.meK900Why not?10:58:37
@atemu12:matrix.orgAtemuIt's confusing11:05:02
@atemu12:matrix.orgAtemu I'd have expected all of them to link to a generic gallium_dri.so or something like that 11:05:46
@atemu12:matrix.orgAtemuIncluding crocus11:05:56
@k900:0upti.meK900They're hardlinks normally11:06:40
@k900:0upti.meK900We just normalize hardlinks to symlinks11:06:47
@atemu12:matrix.orgAtemuOh we do?11:10:42
@k900:0upti.meK900Yes11:11:43

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