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Diffstat (limited to 'util/i915tool/transform')
| -rw-r--r-- | util/i915tool/transform | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/util/i915tool/transform b/util/i915tool/transform new file mode 100644 index 0000000000..3e191cb7e9 --- /dev/null +++ b/util/i915tool/transform @@ -0,0 +1,151 @@ +#!/bin/bash +# This script has been honed over quite a few iterations. The trick is to make +# it easy for you to see what transformations occur +# without burying you in files. +# Also, coccinelle is not perfect, so we have to help her at times. As she +# gets smarter, we can shrink thigns we do in here. +# So we get input files, then do per-file changes, then do all-file changes +# I've deliberately made this script simple. Please don't decide it needs to +# be automagic. Just let it work in its simple way. Also, if you change even +# one simple thing, ALWAYS rerun this script do make sure you did not make a +# global test. NEVER test one little thing in isolation. That way +# lies madness. +# The only thing you need to set is +# export LINUX=/path/to/your/linux/tree. +# Order in which we do things. +# 1. Get source files into inputs. +# 2. cp them to per-file-changes +# Note that we even copy ones that might not currently need per-file +# changes. Because they may in future and it keeps the script simple. +# We tried both ways and like this best. +# 3. run 'ed' across a few files that need it +# 4. run coccinelle with any per-file changes +# There is some ugliness here as we have to do a reverse patch step. Sorry. +# 5. cp per-file-changes/* to final +# 6. run coccinelle files that apply to more than one file +# it's best to run coccinelle on as many files as possible, she's pretty +# smart about +# certain transformations, e.g. if you remove a function definition she can +# remove all calls to that function (usually) +# +# Now you can +# make (will build all working tools) +# or +# make broken +# for things that don't build yet. + +# Step 1 +rm inputs/* per-file-changes/* final/* tmp/* +cp $LINUX/drivers/gpu/drm/i915/i915_reg.h inputs +cp $LINUX/drivers/gpu/drm/i915/i915_drv.? inputs +cp $LINUX/drivers/gpu/drm/i915/intel_display.c inputs +cp $LINUX/drivers/gpu/drm/i915/intel_bios.c inputs +cp $LINUX/drivers/gpu/drm/i915/intel_bios.h inputs +cp $LINUX/drivers/gpu/drm/i915/intel_ringbuffer.h inputs +cp $LINUX/drivers/gpu/drm/i915/i915_dma.c inputs +cp $LINUX/include/drm/drm_crtc.h inputs +cp $LINUX/include/drm/drm_mode.h inputs +cp $LINUX/include/drm/drm_dp_helper.h inputs +cp $LINUX/drivers/gpu/drm/drm_modes.c inputs + +# Step 2 +cp inputs/* per-file-changes + +# Step 3 +# We tried sed but it had some issues that ed did not +# coccinelle can't handle anonymous structs +# also some stuff is easier with ed. +# also there are bugs spatches/in coccinelle it seems :-( +# the literal deletes below suck and we need to figure +# out wtf went wrong. +ed per-file-changes/i915_drv.h << EOF +/intel_gtt/ +. +?struct *{?,/mm;/d +. +/i915_trace.h/ +. +.,/#define POSTING_READ16/d +/struct *intel_gmbus/ +.,/\*gmb/d +. +g/notifier_block/d +g/struct *drm_i915_display_funcs *display;/d +g/struct *completion *[a-z].*;/d +w +q +EOF + +ed per-file-changes/drm_crtc.h <<EOF +/drm_crtc_init/,/endif/-d +w +q +EOF + +ed per-file-changes/intel_display.c << EOF +g/mode_config.funcs *=/d +g/fb_base/d +g/const/s/// +w +q +EOF + +# Reverse patches. We hope these will go away someday. +>per-file-changes/intel_bios.c +spatch -sp_file spatches/getfn.cocci inputs/intel_bios.c -U 0 > tmp/res +./plusplusplus tmp/res per-file-changes/intel_bios.c +(cd per-file-changes/; patch -p1 -R ) < tmp/res.pat + +>per-file-changes/drm_modes.c +spatch -sp_file spatches/getdrmmodefn.cocci inputs/drm_modes.c -U 0 \ + > tmp/drm_modes +./plusplusplus tmp/drm_modes per-file-changes/drm_modes.c +(cd per-file-changes/; patch -p1 -R ) < tmp/drm_modes.pat + +spatch -sp_file spatches/i915_dma.c.cocci inputs/i915_dma.c -U 0 \ + > tmp/i915_dma.c.patch +./plusplusplus tmp/i915_dma.c.patch per-file-changes/i915_dma.c +# This is the only way I can make sure the right file gets patched! +# someone tell me why. It keeps picking the wrong one. +(cd per-file-changes/; patch -p1 -R ) < tmp/i915_dma.c.patch.pat +spatch --in-place -sp_file spatches/fixcalls.cocci per-file-changes/i915_dma.c +#patch -p0 -R < tmp/i915_dma.c.patch.pat + +#echo '#include "video.h"' +>per-file-changes/i915_drv.c +spatch -sp_file spatches/i915_drv.c.cocci inputs/i915_drv.c -U 0 \ + > tmp/i915_drv.c.patch +./plusplusplus tmp/i915_drv.c.patch per-file-changes/i915_drv.c +# This is the only way I can make sure the right file gets patched! +# someone tell me why. It keeps picking the wrong one. +(cd per-file-changes/; patch -p1 -R ) < tmp/i915_drv.c.patch.pat +spatch --in-place -sp_file spatches/fixcalls.cocci per-file-changes/i915_drv.c + +# Finally, a basic spatch sequence! + +spatch --in-place -sp_file \ + spatches/intel_display.c.cocci per-file-changes/intel_display.c \ + > /dev/null + +spatch --in-place -sp_file spatches/i915_drv.cocci \ + per-file-changes/i915_drv.h >/dev/null + +# Now do the common changes to all files. +cp per-file-changes/* final +spatch --in-place -sp_file spatches/ringbuffer.cocci \ + final/intel_ringbuffer.h >/dev/null +spatch --in-place -sp_file spatches/removeinclude.cocci \ + final/intel_display.c > /dev/null +spatch --in-place -sp_file spatches/fixcalls.cocci final/intel_display.c \ + >/dev/null +spatch --in-place -sp_file spatches/ringbuffer.cocci final/drm_dp_helper.h\ + >/dev/null +spatch --in-place -sp_file spatches/removeinclude.cocci final/drm_dp_helper.h\ + >/dev/null +spatch --in-place -sp_file spatches/i915_drv.cocci final/intel_ringbuffer.h\ + >/dev/null +spatch --in-place -sp_file spatches/deldev.cocci final/intel_bios.c \ + final/intel_bios.h final/i915_drv.h final/intel_ringbuffer.h>/dev/null +spatch --in-place -sp_file spatches/fixcalls.cocci final/intel_bios.c \ + >/dev/null +spatch --in-place -sp_file spatches/drm_crtc.cocci final/drm_crtc.h >/dev/null |