New package: linux5.8-5.8.1

2020-08-12 13:45:17 +02:00 · 2020-08-12 13:45:17 +02:00 · e884e6f47e
commit e884e6f47e
parent 3fec8e76a8
16 changed files with 71124 additions and 0 deletions
--- a/srcpkgs/linux5.8-dbg
+++ b/srcpkgs/linux5.8-dbg
@ -0,0 +1 @@
+linux5.8
--- a/srcpkgs/linux5.8-headers
+++ b/srcpkgs/linux5.8-headers
@ -0,0 +1 @@
+linux5.8
--- a/srcpkgs/linux5.8/files/DocBook/Makefile
+++ b/srcpkgs/linux5.8/files/DocBook/Makefile
@ -0,0 +1,282 @@
+###
+# This makefile is used to generate the kernel documentation,
+# primarily based on in-line comments in various source files.
+# See Documentation/kernel-doc-nano-HOWTO.txt for instruction in how
+# to document the SRC - and how to read it.
+# To add a new book the only step required is to add the book to the
+# list of DOCBOOKS.
+
+DOCBOOKS := z8530book.xml  \
+	    kernel-hacking.xml kernel-locking.xml \
+	    networking.xml \
+	    filesystems.xml lsm.xml kgdb.xml \
+	    libata.xml mtdnand.xml librs.xml rapidio.xml \
+	    s390-drivers.xml scsi.xml \
+	    sh.xml w1.xml
+
+ifeq ($(DOCBOOKS),)
+
+# Skip DocBook build if the user explicitly requested no DOCBOOKS.
+.DEFAULT:
+	@echo "  SKIP    DocBook $@ target (DOCBOOKS=\"\" specified)."
+else
+ifneq ($(SPHINXDIRS),)
+
+# Skip DocBook build if the user explicitly requested a sphinx dir
+.DEFAULT:
+	@echo "  SKIP    DocBook $@ target (SPHINXDIRS specified)."
+else
+
+
+###
+# The build process is as follows (targets):
+#              (xmldocs) [by docproc]
+# file.tmpl --> file.xml +--> file.ps   (psdocs)   [by db2ps or xmlto]
+#                        +--> file.pdf  (pdfdocs)  [by db2pdf or xmlto]
+#                        +--> DIR=file  (htmldocs) [by xmlto]
+#                        +--> man/      (mandocs)  [by xmlto]
+
+
+# for PDF and PS output you can choose between xmlto and docbook-utils tools
+PDF_METHOD	= $(prefer-db2x)
+PS_METHOD	= $(prefer-db2x)
+
+
+targets += $(DOCBOOKS)
+BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
+xmldocs: $(BOOKS)
+sgmldocs: xmldocs
+
+PS := $(patsubst %.xml, %.ps, $(BOOKS))
+psdocs: $(PS)
+
+PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
+pdfdocs: $(PDF)
+
+HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
+htmldocs: $(HTML)
+	$(call cmd,build_main_index)
+
+MAN := $(patsubst %.xml, %.9, $(BOOKS))
+mandocs: $(MAN)
+	find $(obj)/man -name '*.9' | xargs gzip -nf
+
+# Default location for installed man pages
+export INSTALL_MAN_PATH = $(objtree)/usr
+
+installmandocs: mandocs
+	mkdir -p $(INSTALL_MAN_PATH)/man/man9/
+	find $(obj)/man -name '*.9.gz' -printf '%h %f\n' | \
+		sort -k 2 -k 1 | uniq -f 1 | sed -e 's: :/:' | \
+		xargs install -m 644 -t $(INSTALL_MAN_PATH)/man/man9/
+
+# no-op for the DocBook toolchain
+epubdocs:
+latexdocs:
+linkcheckdocs:
+
+###
+#External programs used
+KERNELDOCXMLREF = $(srctree)/scripts/kernel-doc-xml-ref
+KERNELDOC       = $(srctree)/scripts/kernel-doc
+DOCPROC         = $(objtree)/scripts/docproc
+CHECK_LC_CTYPE = $(objtree)/scripts/check-lc_ctype
+
+# Use a fixed encoding - UTF-8 if the C library has support built-in
+# or ASCII if not
+LC_CTYPE := $(call try-run, LC_CTYPE=C.UTF-8 $(CHECK_LC_CTYPE),C.UTF-8,C)
+export LC_CTYPE
+
+XMLTOFLAGS = -m $(srctree)/$(src)/stylesheet.xsl
+XMLTOFLAGS += --skip-validation
+
+###
+# DOCPROC is used for two purposes:
+# 1) To generate a dependency list for a .tmpl file
+# 2) To preprocess a .tmpl file and call kernel-doc with
+#     appropriate parameters.
+# The following rules are used to generate the .xml documentation
+# required to generate the final targets. (ps, pdf, html).
+quiet_cmd_docproc = DOCPROC $@
+      cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
+define rule_docproc
+	set -e;								\
+        $(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))';) 	\
+        $(cmd_$(1)); 							\
+        ( 								\
+          echo 'cmd_$@ := $(cmd_$(1))'; 				\
+          echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; 		\
+        ) > $(dir $@).$(notdir $@).cmd
+endef
+
+%.xml: %.tmpl $(KERNELDOC) $(DOCPROC) $(KERNELDOCXMLREF) FORCE
+	$(call if_changed_rule,docproc)
+
+# Tell kbuild to always build the programs
+always := $(hostprogs-y)
+
+notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
+		   exit 1
+db2xtemplate = db2TYPE -o $(dir $@) $<
+xmltotemplate = xmlto TYPE $(XMLTOFLAGS) -o $(dir $@) $<
+
+# determine which methods are available
+ifeq ($(shell which db2ps >/dev/null 2>&1 && echo found),found)
+	use-db2x = db2x
+	prefer-db2x = db2x
+else
+	use-db2x = notfound
+	prefer-db2x = $(use-xmlto)
+endif
+ifeq ($(shell which xmlto >/dev/null 2>&1 && echo found),found)
+	use-xmlto = xmlto
+	prefer-xmlto = xmlto
+else
+	use-xmlto = notfound
+	prefer-xmlto = $(use-db2x)
+endif
+
+# the commands, generated from the chosen template
+quiet_cmd_db2ps = PS      $@
+      cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
+%.ps : %.xml
+	$(call cmd,db2ps)
+
+quiet_cmd_db2pdf = PDF     $@
+      cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
+%.pdf : %.xml
+	$(call cmd,db2pdf)
+
+
+index = index.html
+main_idx = $(obj)/$(index)
+quiet_cmd_build_main_index = HTML    $(main_idx)
+      cmd_build_main_index = rm -rf $(main_idx); \
+		   echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \
+		   echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
+		   cat $(HTML) >> $(main_idx)
+
+quiet_cmd_db2html = HTML    $@
+      cmd_db2html = xmlto html $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
+		echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
+		$(patsubst %.html,%,$(notdir $@))</a><p>' > $@
+
+###
+# Rules to create an aux XML and .db, and use them to re-process the DocBook XML
+# to fill internal hyperlinks
+       gen_aux_xml = :
+ quiet_gen_aux_xml = echo '  XMLREF  $@'
+silent_gen_aux_xml = :
+%.aux.xml: %.xml
+	@$($(quiet)gen_aux_xml)
+	@rm -rf $@
+	@(cat $< | egrep "^<refentry id" | egrep -o "\".*\"" | cut -f 2 -d \" > $<.db)
+	@$(KERNELDOCXMLREF) -db $<.db $< > $@
+.PRECIOUS: %.aux.xml
+
+%.html:	%.aux.xml
+	@(which xmlto > /dev/null 2>&1) || \
+	 (echo "*** You need to install xmlto ***"; \
+	  exit 1)
+	@rm -rf $@ $(patsubst %.html,%,$@)
+	$(call cmd,db2html)
+	@if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
+            cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
+
+quiet_cmd_db2man = MAN     $@
+      cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man/$(*F) $< ; fi
+%.9 : %.xml
+	@(which xmlto > /dev/null 2>&1) || \
+	 (echo "*** You need to install xmlto ***"; \
+	  exit 1)
+	$(Q)mkdir -p $(obj)/man/$(*F)
+	$(call cmd,db2man)
+	@touch $@
+
+###
+# Rules to generate postscripts and PNG images from .fig format files
+quiet_cmd_fig2eps = FIG2EPS $@
+      cmd_fig2eps = fig2dev -Leps $< $@
+
+%.eps: %.fig
+	@(which fig2dev > /dev/null 2>&1) || \
+	 (echo "*** You need to install transfig ***"; \
+	  exit 1)
+	$(call cmd,fig2eps)
+
+quiet_cmd_fig2png = FIG2PNG $@
+      cmd_fig2png = fig2dev -Lpng $< $@
+
+%.png: %.fig
+	@(which fig2dev > /dev/null 2>&1) || \
+	 (echo "*** You need to install transfig ***"; \
+	  exit 1)
+	$(call cmd,fig2png)
+
+###
+# Rule to convert a .c file to inline XML documentation
+       gen_xml = :
+ quiet_gen_xml = echo '  GEN     $@'
+silent_gen_xml = :
+%.xml: %.c
+	@$($(quiet)gen_xml)
+	@(                            \
+	   echo "<programlisting>";   \
+	   expand --tabs=8 < $< |     \
+	   sed -e "s/&/\\&amp;/g"     \
+	       -e "s/</\\&lt;/g"      \
+	       -e "s/>/\\&gt;/g";     \
+	   echo "</programlisting>")  > $@
+
+endif # DOCBOOKS=""
+endif # SPHINDIR=...
+
+###
+# Help targets as used by the top-level makefile
+dochelp:
+	@echo  ' Linux kernel internal documentation in different formats (DocBook):'
+	@echo  '  htmldocs        - HTML'
+	@echo  '  pdfdocs         - PDF'
+	@echo  '  psdocs          - Postscript'
+	@echo  '  xmldocs         - XML DocBook'
+	@echo  '  mandocs         - man pages'
+	@echo  '  installmandocs  - install man pages generated by mandocs to INSTALL_MAN_PATH'; \
+	 echo  '                    (default: $(INSTALL_MAN_PATH))'; \
+	 echo  ''
+	@echo  '  cleandocs       - clean all generated DocBook files'
+	@echo
+	@echo  '  make DOCBOOKS="s1.xml s2.xml" [target] Generate only docs s1.xml s2.xml'
+	@echo  '  valid values for DOCBOOKS are: $(DOCBOOKS)'
+	@echo
+	@echo  "  make DOCBOOKS=\"\" [target] Don't generate docs from Docbook"
+	@echo  '     This is useful to generate only the ReST docs (Sphinx)'
+
+
+###
+# Temporary files left by various tools
+clean-files := $(DOCBOOKS) \
+	$(patsubst %.xml, %.dvi,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.aux,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.tex,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.log,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.out,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.ps,      $(DOCBOOKS)) \
+	$(patsubst %.xml, %.pdf,     $(DOCBOOKS)) \
+	$(patsubst %.xml, %.html,    $(DOCBOOKS)) \
+	$(patsubst %.xml, %.9,       $(DOCBOOKS)) \
+	$(patsubst %.xml, %.aux.xml, $(DOCBOOKS)) \
+	$(patsubst %.xml, %.xml.db,  $(DOCBOOKS)) \
+	$(patsubst %.xml, %.xml,     $(DOCBOOKS)) \
+	$(patsubst %.xml, .%.xml.cmd, $(DOCBOOKS)) \
+	$(index)
+
+clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
+
+cleandocs:
+	$(Q)rm -f $(call objectify, $(clean-files))
+	$(Q)rm -rf $(call objectify, $(clean-dirs))
+
+# Declare the contents of the .PHONY variable as phony.  We keep that
+# information in a variable so we can use it in if_changed and friends.
+
+.PHONY: $(PHONY)
--- a/srcpkgs/linux5.8/files/arm64-dotconfig
+++ b/srcpkgs/linux5.8/files/arm64-dotconfig
--- a/srcpkgs/linux5.8/files/i386-dotconfig
+++ b/srcpkgs/linux5.8/files/i386-dotconfig
--- a/srcpkgs/linux5.8/files/mips-dotconfig
+++ b/srcpkgs/linux5.8/files/mips-dotconfig
--- a/srcpkgs/linux5.8/files/mv-debug
+++ b/srcpkgs/linux5.8/files/mv-debug
@ -0,0 +1,7 @@
+#!/bin/sh
+mod=$1
+mkdir -p usr/lib/debug/${mod%/*}
+$OBJCOPY --only-keep-debug --compress-debug-sections $mod usr/lib/debug/$mod
+$OBJCOPY --add-gnu-debuglink=${DESTDIR}/usr/lib/debug/$mod $mod
+/usr/bin/$STRIP --strip-debug $mod
+gzip -9 $mod
--- a/srcpkgs/linux5.8/files/ppc-dotconfig
+++ b/srcpkgs/linux5.8/files/ppc-dotconfig
--- a/srcpkgs/linux5.8/files/ppc64-dotconfig
+++ b/srcpkgs/linux5.8/files/ppc64-dotconfig
--- a/srcpkgs/linux5.8/files/ppc64le-dotconfig
+++ b/srcpkgs/linux5.8/files/ppc64le-dotconfig
--- a/srcpkgs/linux5.8/files/x86_64-dotconfig
+++ b/srcpkgs/linux5.8/files/x86_64-dotconfig
--- a/srcpkgs/linux5.8/patches/navi_alloc.patch
+++ b/srcpkgs/linux5.8/patches/navi_alloc.patch
@ -0,0 +1,33 @@
+From 2fdd63feb95c6751526068c02f7512fd4bea6956 Mon Sep 17 00:00:00 2001
+From: Daniel Kolesa <daniel@octaforge.org>
+Date: Sat, 8 Aug 2020 20:05:29 +0200
+Subject: [PATCH] dcn20_resource: use GFP_ATOMIC in validate_bandwidth_internal
+
+GFP_KERNEL may and will sleep, and this is being executed in
+a non-preemptible context; this will mess things up since it's
+called inbetween DC_FP_START/END, and rescheduling will result
+in the DC_FP_END later being called in a different context (or
+just crashing if any floating point/vector registers/instructions
+are used after the call is resumed in a different context).
+
+Signed-off-by: Daniel Kolesa <daniel@octaforge.org>
+---
+ drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+index 2719cde..d37ede0 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+@@ -3031,7 +3031,7 @@ static bool dcn20_validate_bandwidth_internal(struct dc *dc, struct dc_state *co
+ 	int vlevel = 0;
+ 	int pipe_split_from[MAX_PIPES];
+ 	int pipe_cnt = 0;
+-	display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_KERNEL);
+	display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_ATOMIC);
+ 	DC_LOGGER_INIT(dc->ctx->logger);
+ 
+ 	BW_VAL_TRACE_COUNT();
+-- 
+2.28.0
+
--- a/srcpkgs/linux5.8/patches/navi_arm64.patch
+++ b/srcpkgs/linux5.8/patches/navi_arm64.patch
@ -0,0 +1,300 @@
+From eb493330aaa22cf7935c338f7d028bfeb1316b3b Mon Sep 17 00:00:00 2001
+From: Daniel Kolesa <daniel@octaforge.org>
+Date: Sat, 8 Aug 2020 21:21:11 +0200
+Subject: [PATCH] drm/amd/display: add DCN support for Aarch64
+
+This adds ARM64 support into the DCN. This mainly enables support
+for Navi graphics cards. The dcn10 changes haven't been tested,
+since I don't have the relevant hardware available, but there
+is no way to conditionally disable them, so I've done them anyway.
+
+Signed-off-by: Daniel Kolesa <daniel@octaforge.org>
+---
+ drivers/gpu/drm/amd/display/Kconfig           |  2 +-
+ drivers/gpu/drm/amd/display/dc/calcs/Makefile |  7 ++
+ .../gpu/drm/amd/display/dc/clk_mgr/Makefile   |  7 ++
+ drivers/gpu/drm/amd/display/dc/dcn10/Makefile |  7 ++
+ .../drm/amd/display/dc/dcn10/dcn10_resource.c | 81 ++++++++++++-------
+ drivers/gpu/drm/amd/display/dc/dcn20/Makefile |  4 +
+ drivers/gpu/drm/amd/display/dc/dcn21/Makefile |  4 +
+ drivers/gpu/drm/amd/display/dc/dml/Makefile   | 13 +++
+ drivers/gpu/drm/amd/display/dc/dsc/Makefile   |  7 ++
+ drivers/gpu/drm/amd/display/dc/os_types.h     |  4 +
+ 10 files changed, 104 insertions(+), 32 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
+index 87858bc..21bf65b 100644
+--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
+@@ -6,7 +6,7 @@ config DRM_AMD_DC
+ 	bool "AMD DC - Enable new display engine"
+ 	default y
+ 	select SND_HDA_COMPONENT if SND_HDA_CORE
+-	select DRM_AMD_DC_DCN if (X86 || PPC64) && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS)
+	select DRM_AMD_DC_DCN if (X86 || PPC64 || (ARM64 && KERNEL_MODE_NEON)) && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS)
+ 	help
+ 	  Choose this option if you want to use the new display engine
+ 	  support for AMDGPU. This adds required support for Vega and
+diff --git a/drivers/gpu/drm/amd/display/dc/calcs/Makefile b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+index 4674aca..64f515d 100644
+--- a/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/calcs/Makefile
+@@ -33,6 +33,10 @@ ifdef CONFIG_PPC64
+ calcs_ccflags := -mhard-float -maltivec
+ endif
+ 
+ifdef CONFIG_ARM64
+calcs_rcflags := -mgeneral-regs-only
+endif
+
+ ifdef CONFIG_CC_IS_GCC
+ ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+ IS_OLD_GCC = 1
+@@ -53,6 +57,9 @@ endif
+ CFLAGS_$(AMDDALPATH)/dc/calcs/dcn_calcs.o := $(calcs_ccflags)
+ CFLAGS_$(AMDDALPATH)/dc/calcs/dcn_calc_auto.o := $(calcs_ccflags)
+ CFLAGS_$(AMDDALPATH)/dc/calcs/dcn_calc_math.o := $(calcs_ccflags) -Wno-tautological-compare
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/calcs/dcn_calcs.o := $(calcs_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/calcs/dcn_calc_auto.o := $(calcs_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/calcs/dcn_calc_math.o := $(calcs_rcflags)
+ 
+ BW_CALCS = dce_calcs.o bw_fixed.o custom_float.o
+ 
+diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
+index c0f6a8c..3b74569 100644
+--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
+@@ -93,6 +93,13 @@ ifdef CONFIG_PPC64
+ CFLAGS_$(AMDDALPATH)/dc/clk_mgr/dcn21/rn_clk_mgr.o := $(call cc-option,-mno-gnu-attribute)
+ endif
+ 
+# prevent build errors:
+# ...: '-mgeneral-regs-only' is incompatible with the use of floating-point types
+# this file is unused on arm64, just like on ppc64
+ifdef CONFIG_ARM64
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/clk_mgr/dcn21/rn_clk_mgr.o := -mgeneral-regs-only
+endif
+
+ AMD_DAL_CLK_MGR_DCN21 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn21/,$(CLK_MGR_DCN21))
+ 
+ AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN21)
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/Makefile b/drivers/gpu/drm/amd/display/dc/dcn10/Makefile
+index 62ad1a1..733e6e6 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn10/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/Makefile
+@@ -31,4 +31,11 @@ DCN10 = dcn10_init.o dcn10_resource.o dcn10_ipp.o dcn10_hw_sequencer.o \
+ 
+ AMD_DAL_DCN10 = $(addprefix $(AMDDALPATH)/dc/dcn10/,$(DCN10))
+ 
+# fix:
+# ...: '-mgeneral-regs-only' is incompatible with the use of floating-point types
+# aarch64 does not support soft-float, so use hard-float and handle this in code
+ifdef CONFIG_ARM64
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dcn10/dcn10_resource.o := -mgeneral-regs-only
+endif
+
+ AMD_DISPLAY_FILES += $(AMD_DAL_DCN10)
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+index ba849aa..924d967 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+@@ -1318,6 +1318,47 @@ static uint32_t read_pipe_fuses(struct dc_context *ctx)
+ 	return value;
+ }
+ 
+/*
+ * Some architectures don't support soft-float (e.g. aarch64), on those
+ * this function has to be called with hardfloat enabled, make sure not
+ * to inline it so whatever fp stuff is done stays inside
+ */
+static noinline void dcn10_resource_construct_fp(
+	struct dc *dc)
+{
+	if (dc->ctx->dce_version == DCN_VERSION_1_01) {
+		struct dcn_soc_bounding_box *dcn_soc = dc->dcn_soc;
+		struct dcn_ip_params *dcn_ip = dc->dcn_ip;
+		struct display_mode_lib *dml = &dc->dml;
+
+		dml->ip.max_num_dpp = 3;
+		/* TODO how to handle 23.84? */
+		dcn_soc->dram_clock_change_latency = 23;
+		dcn_ip->max_num_dpp = 3;
+	}
+	if (ASICREV_IS_RV1_F0(dc->ctx->asic_id.hw_internal_rev)) {
+		dc->dcn_soc->urgent_latency = 3;
+		dc->debug.disable_dmcu = true;
+		dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 41.60f;
+	}
+
+
+	dc->dcn_soc->number_of_channels = dc->ctx->asic_id.vram_width / ddr4_dram_width;
+	ASSERT(dc->dcn_soc->number_of_channels < 3);
+	if (dc->dcn_soc->number_of_channels == 0)/*old sbios bug*/
+		dc->dcn_soc->number_of_channels = 2;
+
+	if (dc->dcn_soc->number_of_channels == 1) {
+		dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 19.2f;
+		dc->dcn_soc->fabric_and_dram_bandwidth_vnom0p8 = 17.066f;
+		dc->dcn_soc->fabric_and_dram_bandwidth_vmid0p72 = 14.933f;
+		dc->dcn_soc->fabric_and_dram_bandwidth_vmin0p65 = 12.8f;
+		if (ASICREV_IS_RV1_F0(dc->ctx->asic_id.hw_internal_rev)) {
+			dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 20.80f;
+		}
+	}
+}
+
+ static bool dcn10_resource_construct(
+ 	uint8_t num_virtual_links,
+ 	struct dc *dc,
+@@ -1435,37 +1476,15 @@ static bool dcn10_resource_construct(
+ 	memcpy(dc->dcn_ip, &dcn10_ip_defaults, sizeof(dcn10_ip_defaults));
+ 	memcpy(dc->dcn_soc, &dcn10_soc_defaults, sizeof(dcn10_soc_defaults));
+ 
+-	if (dc->ctx->dce_version == DCN_VERSION_1_01) {
+-		struct dcn_soc_bounding_box *dcn_soc = dc->dcn_soc;
+-		struct dcn_ip_params *dcn_ip = dc->dcn_ip;
+-		struct display_mode_lib *dml = &dc->dml;
+-
+-		dml->ip.max_num_dpp = 3;
+-		/* TODO how to handle 23.84? */
+-		dcn_soc->dram_clock_change_latency = 23;
+-		dcn_ip->max_num_dpp = 3;
+-	}
+-	if (ASICREV_IS_RV1_F0(dc->ctx->asic_id.hw_internal_rev)) {
+-		dc->dcn_soc->urgent_latency = 3;
+-		dc->debug.disable_dmcu = true;
+-		dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 41.60f;
+-	}
+-
+-
+-	dc->dcn_soc->number_of_channels = dc->ctx->asic_id.vram_width / ddr4_dram_width;
+-	ASSERT(dc->dcn_soc->number_of_channels < 3);
+-	if (dc->dcn_soc->number_of_channels == 0)/*old sbios bug*/
+-		dc->dcn_soc->number_of_channels = 2;
+-
+-	if (dc->dcn_soc->number_of_channels == 1) {
+-		dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 19.2f;
+-		dc->dcn_soc->fabric_and_dram_bandwidth_vnom0p8 = 17.066f;
+-		dc->dcn_soc->fabric_and_dram_bandwidth_vmid0p72 = 14.933f;
+-		dc->dcn_soc->fabric_and_dram_bandwidth_vmin0p65 = 12.8f;
+-		if (ASICREV_IS_RV1_F0(dc->ctx->asic_id.hw_internal_rev)) {
+-			dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 20.80f;
+-		}
+-	}
+#if defined(CONFIG_ARM64)
+	/* Aarch64 does not support -msoft-float/-mfloat-abi=soft */
+	DC_FP_START();
+	dcn10_resource_construct_fp(dc);
+	DC_FP_END();
+#else
+	/* Other architectures we build for build this with soft-float */
+	dcn10_resource_construct_fp(dc);
+#endif
+ 
+ 	pool->base.pp_smu = dcn10_pp_smu_create(ctx);
+ 
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/Makefile b/drivers/gpu/drm/amd/display/dc/dcn20/Makefile
+index 5fcaf78..624cb13 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn20/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/Makefile
+@@ -17,6 +17,10 @@ ifdef CONFIG_PPC64
+ CFLAGS_$(AMDDALPATH)/dc/dcn20/dcn20_resource.o := -mhard-float -maltivec
+ endif
+ 
+ifdef CONFIG_ARM64
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dcn20/dcn20_resource.o := -mgeneral-regs-only
+endif
+
+ ifdef CONFIG_CC_IS_GCC
+ ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+ IS_OLD_GCC = 1
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/Makefile b/drivers/gpu/drm/amd/display/dc/dcn21/Makefile
+index 07684d3..51a2f3d 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn21/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/Makefile
+@@ -13,6 +13,10 @@ ifdef CONFIG_PPC64
+ CFLAGS_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o := -mhard-float -maltivec
+ endif
+ 
+ifdef CONFIG_ARM64
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dcn21/dcn21_resource.o := -mgeneral-regs-only
+endif
+
+ ifdef CONFIG_CC_IS_GCC
+ ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+ IS_OLD_GCC = 1
+diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
+index e34c337..9845cf1 100644
+--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
+@@ -33,6 +33,10 @@ ifdef CONFIG_PPC64
+ dml_ccflags := -mhard-float -maltivec
+ endif
+ 
+ifdef CONFIG_ARM64
+dml_rcflags := -mgeneral-regs-only
+endif
+
+ ifdef CONFIG_CC_IS_GCC
+ ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+ IS_OLD_GCC = 1
+@@ -60,9 +64,18 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/display_mode_vba_20v2.o := $(dml_ccflags)
+ CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/display_rq_dlg_calc_20v2.o := $(dml_ccflags)
+ CFLAGS_$(AMDDALPATH)/dc/dml/dcn21/display_mode_vba_21.o := $(dml_ccflags)
+ CFLAGS_$(AMDDALPATH)/dc/dml/dcn21/display_rq_dlg_calc_21.o := $(dml_ccflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/display_mode_vba_20.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/display_rq_dlg_calc_20.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/display_mode_vba_20v2.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn20/display_rq_dlg_calc_20v2.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn21/display_mode_vba_21.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dcn21/display_rq_dlg_calc_21.o := $(dml_rcflags)
+ endif
+ CFLAGS_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_ccflags)
+ CFLAGS_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_ccflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_rcflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_rcflags)
+ 
+ DML = display_mode_lib.o display_rq_dlg_helpers.o dml1_display_rq_dlg_calc.o \
+ 
+diff --git a/drivers/gpu/drm/amd/display/dc/dsc/Makefile b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
+index 3f66868..3c176c9 100644
+--- a/drivers/gpu/drm/amd/display/dc/dsc/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dsc/Makefile
+@@ -10,6 +10,10 @@
+ dsc_ccflags := -mhard-float -maltivec
+ endif
+ 
+ifdef CONFIG_ARM64
+dsc_rcflags := -mgeneral-regs-only
+endif
+
+ ifdef CONFIG_CC_IS_GCC
+ ifeq ($(call cc-ifversion, -lt, 0701, y), y)
+ IS_OLD_GCC = 1
+@@ -28,6 +32,7 @@
+ endif
+ 
+ CFLAGS_$(AMDDALPATH)/dc/dsc/rc_calc.o := $(dsc_ccflags)
+CFLAGS_REMOVE_$(AMDDALPATH)/dc/dsc/rc_calc.o := $(dsc_rcflags)
+ 
+ DSC = dc_dsc.o rc_calc.o rc_calc_dpi.o
+
+diff --git a/drivers/gpu/drm/amd/display/dc/os_types.h b/drivers/gpu/drm/amd/display/dc/os_types.h
+index 6d7bca5..6547a1a 100644
+--- a/drivers/gpu/drm/amd/display/dc/os_types.h
+++ b/drivers/gpu/drm/amd/display/dc/os_types.h
+@@ -55,6 +55,10 @@
+ #include <asm/fpu/api.h>
+ #define DC_FP_START() kernel_fpu_begin()
+ #define DC_FP_END() kernel_fpu_end()
+#elif defined(CONFIG_ARM64)
+#include <asm/neon.h>
+#define DC_FP_START() kernel_neon_begin()
+#define DC_FP_END() kernel_neon_end()
+ #elif defined(CONFIG_PPC64)
+ #include <asm/switch_to.h>
+ #include <asm/cputable.h>
+-- 
+2.28.0
+
--- a/srcpkgs/linux5.8/patches/ppc64-be-elfv2.patch
+++ b/srcpkgs/linux5.8/patches/ppc64-be-elfv2.patch
@ -0,0 +1,86 @@
+This makes the Linux kernel build as ELFv2 on big endian ppc64. The upstream
+doesn't seem to be interested in this but it's a small patch that is unlikely
+to break/easy to remake and in worst case can always be ditched.
+
+Using ELFv2 has some potential performance benefits and is already always used
+on little endian. It requires a relatively modern toolchain, which we already
+have.
+
+Ping q66 if it does not apply.
+
+--- a/arch/powerpc/Makefile	2020-01-05 14:40:50.395763093 +0100
+++ b/arch/powerpc/Makefile	2020-01-05 14:48:39.025251092 +0100
+@@ -92,10 +92,8 @@
+ 
+ ifdef CONFIG_PPC64
+ ifndef CONFIG_CC_IS_CLANG
+-cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+-cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mcall-aixdesc)
+-aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+-aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mabi=elfv2
+cflags-y    += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
+aflags-y    += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ endif
+ endif
+ 
+@@ -144,14 +142,8 @@
+ 
+ CFLAGS-$(CONFIG_PPC64)	:= $(call cc-option,-mtraceback=no)
+ ifndef CONFIG_CC_IS_CLANG
+-ifdef CONFIG_CPU_LITTLE_ENDIAN
+ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
+-AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2)
+-else
+-CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
+-CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcall-aixdesc)
+-AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
+-endif
+AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ endif
+ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
+ CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
+
+--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
+@@ -48,8 +48,8 @@ ifdef CONFIG_CPU_BIG_ENDIAN
+ BOOTCFLAGS	+= -mbig-endian
+ else
+ BOOTCFLAGS	+= -mlittle-endian
+-BOOTCFLAGS	+= $(call cc-option,-mabi=elfv2)
+ endif
+BOOTCFLAGS	+= $(call cc-option,-mabi=elfv2)
+ 
+ BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
+ 
+--- a/drivers/crypto/vmx/Makefile	2020-01-01 10:56:10.560965046 +0100
+++ b/drivers/crypto/vmx/Makefile	2020-01-01 10:57:05.189968856 +0100
+@@ -5,7 +5,7 @@
+ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+ override flavour := linux-ppc64le
+ else
+-override flavour := linux-ppc64
+override flavour := linux-ppc64v2
+ endif
+ 
+ quiet_cmd_perl = PERL $@
+
+--- a/drivers/crypto/vmx/ppc-xlate.pl
+++ b/drivers/crypto/vmx/ppc-xlate.pl
+@@ -40,7 +40,7 @@ my $globl = sub {
+ };
+ my $text = sub {
+     my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
+-    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64le/);
+    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64(le|v2)/);
+     $ret;
+ };
+ my $machine = sub {
+@@ -142,7 +142,7 @@ my $vmr = sub {
+ 
+ # Some ABIs specify vrsave, special-purpose register #256, as reserved
+ # for system use.
+-my $no_vrsave = ($flavour =~ /linux-ppc64le/);
+my $no_vrsave = ($flavour =~ /linux-ppc64(le|v2)/);
+ my $mtspr = sub {
+     my ($f,$idx,$ra) = @_;
+     if ($idx == 256 && $no_vrsave) {
--- a/srcpkgs/linux5.8/patches/smsc95xx-mac.patch
+++ b/srcpkgs/linux5.8/patches/smsc95xx-mac.patch
@ -0,0 +1,95 @@
+From e36d607d56dc5c0cbf2cb600e7686b559ea77b44 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 18 Feb 2014 01:43:50 -0300
+Subject: [PATCH] net/smsc95xx: Allow mac address to be set as a parameter
+
+---
+ drivers/net/usb/smsc95xx.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 56 insertions(+)
+
+diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
+index dc989a8..912be75 100644
+--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
+@@ -60,6 +60,7 @@
+ #define SUSPEND_SUSPEND3		(0x08)
+ #define SUSPEND_ALLMODES		(SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
+ 					 SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
+#define MAC_ADDR_LEN                    (6)
+ 
+ #define CARRIER_CHECK_DELAY (2 * HZ)
+ 
+@@ -80,6 +81,10 @@ static bool turbo_mode = true;
+ module_param(turbo_mode, bool, 0644);
+ MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+ 
+static char *macaddr = ":";
+module_param(macaddr, charp, 0);
+MODULE_PARM_DESC(macaddr, "MAC address");
+
+ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ 					    u32 *data, int in_pm)
+ {
+@@ -809,8 +814,59 @@ static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+ 	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+ }
+ 
+/* Check the macaddr module parameter for a MAC address */
+static int smsc95xx_is_macaddr_param(struct usbnet *dev, u8 *dev_mac)
+{
+       int i, j, got_num, num;
+       u8 mtbl[MAC_ADDR_LEN];
+
+       if (macaddr[0] == ':')
+               return 0;
+
+       i = 0;
+       j = 0;
+       num = 0;
+       got_num = 0;
+       while (j < MAC_ADDR_LEN) {
+               if (macaddr[i] && macaddr[i] != ':') {
+                       got_num++;
+                       if ('0' <= macaddr[i] && macaddr[i] <= '9')
+                               num = num * 16 + macaddr[i] - '0';
+                       else if ('A' <= macaddr[i] && macaddr[i] <= 'F')
+                               num = num * 16 + 10 + macaddr[i] - 'A';
+                       else if ('a' <= macaddr[i] && macaddr[i] <= 'f')
+                               num = num * 16 + 10 + macaddr[i] - 'a';
+                       else
+                               break;
+                       i++;
+               } else if (got_num == 2) {
+                       mtbl[j++] = (u8) num;
+                       num = 0;
+                       got_num = 0;
+                       i++;
+               } else {
+                       break;
+               }
+       }
+
+       if (j == MAC_ADDR_LEN) {
+               netif_dbg(dev, ifup, dev->net, "Overriding MAC address with: "
+               "%02x:%02x:%02x:%02x:%02x:%02x\n", mtbl[0], mtbl[1], mtbl[2],
+                                               mtbl[3], mtbl[4], mtbl[5]);
+               for (i = 0; i < MAC_ADDR_LEN; i++)
+                       dev_mac[i] = mtbl[i];
+               return 1;
+       } else {
+               return 0;
+       }
+}
+
+ static void smsc95xx_init_mac_address(struct usbnet *dev)
+ {
+       /* Check module parameters */
+       if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr))
+               return;
+
+ 	const u8 *mac_addr;
+ 
+ 	/* maybe the boot loader passed the MAC address in devicetree */
+-- 
+2.10.2
+
--- a/srcpkgs/linux5.8/template
+++ b/srcpkgs/linux5.8/template
@ -0,0 +1,337 @@
+# Template file for 'linux5.8'
+pkgname=linux5.8
+version=5.8.1
+revision=1
+wrksrc="linux-${version}"
+short_desc="Linux kernel and modules (${version%.*} series)"
+maintainer="Leah Neukirchen <leah@vuxu.org>"
+license="GPL-2.0-only"
+homepage="https://www.kernel.org"
+distfiles="https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-${version}.tar.xz"
+checksum=f8d2a4fe938ff7faa565765a52e347e518a0712ca6ddd41b198bd9cc1626a724
+python_version=3
+patch_args="-Np1"
+
+# XXX Restrict archs until a proper <arch>-dotconfig is available in FILESDIR.
+archs="x86_64* i686* mips* ppc* aarch64*"
+
+nodebug=yes  # -dbg package is generated below manually
+nostrip=yes
+noverifyrdeps=yes
+noshlibprovides=yes
+preserve=yes
+
+hostmakedepends="tar xz bc elfutils-devel flex gmp-devel kmod libmpc-devel
+ libressl-devel perl uboot-mkimage cpio pahole"
+
+_kernver="${version}_${revision}"
+triggers="kernel-hooks"
+kernel_hooks_version="${_kernver}"
+
+# These files could be modified when an external module is built.
+mutable_files="
+ /usr/lib/modules/${_kernver}/modules.builtin.bin
+ /usr/lib/modules/${_kernver}/modules.builtin.alias.bin
+ /usr/lib/modules/${_kernver}/modules.softdep
+ /usr/lib/modules/${_kernver}/modules.dep
+ /usr/lib/modules/${_kernver}/modules.dep.bin
+ /usr/lib/modules/${_kernver}/modules.symbols
+ /usr/lib/modules/${_kernver}/modules.symbols.bin
+ /usr/lib/modules/${_kernver}/modules.alias
+ /usr/lib/modules/${_kernver}/modules.alias.bin
+ /usr/lib/modules/${_kernver}/modules.devname"
+
+do_configure() {
+	# 5.8 misses Documentation/DocBook. We ship the directory from 4.12 here.
+	cp -a $FILESDIR/DocBook -t Documentation
+
+	# If there's a file called <arch>-dotconfig, use it to
+	# configure the kernel; otherwise use arch defaults and all stuff
+	# as modules (allmodconfig).
+	local arch subarch _args
+
+	case "$XBPS_TARGET_MACHINE" in
+		i686*) arch=i386;;
+		x86_64*) arch=x86_64;;
+		arm*) arch=arm;;
+		aarch64*) arch=arm64;;
+		ppc64le*) arch=powerpc; subarch=ppc64le;;
+		ppc64*) arch=powerpc; subarch=ppc64;;
+		ppc*) arch=powerpc;;
+		mips*) arch=mips;;
+	esac
+
+	if [ "$CROSS_BUILD" ]; then
+		_args="CROSS_COMPILE=${XBPS_CROSS_TRIPLET}-"
+	fi
+
+	if [ -f ${FILESDIR}/${subarch:-$arch}-dotconfig-custom ]; then
+		msg_normal "Detected a custom .config file for your arch, using it.\n"
+		cp -f ${FILESDIR}/${subarch:-$arch}-dotconfig-custom .config
+		make ${makejobs} ARCH=$arch ${_args} oldconfig
+	elif [ -f ${FILESDIR}/${subarch:-$arch}-dotconfig ]; then
+		msg_normal "Detected a .config file for your arch, using it.\n"
+		cp -f ${FILESDIR}/${subarch:-$arch}-dotconfig .config
+		make ${makejobs} ARCH=$arch ${_args} oldconfig
+	elif [ -f ${FILESDIR}/${XBPS_TARGET_MACHINE%%-musl}-dotconfig ]; then
+		msg_normal "Detected a .config file for your cpu family, using it.\n"
+		cp -f ${FILESDIR}/${XBPS_TARGET_MACHINE%%-musl}-dotconfig .config
+		make ${makejobs} ARCH=$arch ${_args} oldconfig
+	else
+		msg_normal "Defaulting to 'allmodconfig'.\n"
+		make ${makejobs} ARCH=$arch ${_args} allmodconfig
+	fi
+	# Always use our revision to CONFIG_LOCALVERSION to match our pkg version.
+	sed -i -e "s|^\(CONFIG_LOCALVERSION=\).*|\1\"_${revision}\"|" .config
+}
+
+do_build() {
+	local arch _cross _args
+
+	case "$XBPS_TARGET_MACHINE" in
+		i686*) _args="bzImage modules"; arch=i386;;
+		x86_64*) _args="bzImage modules"; arch=x86_64;;
+		arm*) _args="zImage modules dtbs"; arch=arm;;
+		aarch64*) _args="Image modules dtbs"; arch=arm64;;
+		ppc*) _args="zImage modules"; arch=powerpc;;
+		mips*) _args="uImage modules dtbs"; arch=mips;;
+	esac
+	if [ "$CROSS_BUILD" ]; then
+		_cross="CROSS_COMPILE=${XBPS_CROSS_TRIPLET}-"
+	fi
+	if [ "${_patchver}" ]; then
+		_version="EXTRAVERSION=${_patchver}"
+	fi
+	export LDFLAGS=
+	make ARCH=$arch ${_version} ${_cross} ${makejobs} prepare
+	make ARCH=$arch ${_version} ${_cross} ${makejobs} ${_args}
+}
+
+do_install() {
+	local arch subarch _args hdrdest
+
+	case "$XBPS_TARGET_MACHINE" in
+		i686*) arch=x86; subarch=i386;;
+		x86_64*) arch=x86; subarch=x86_64;;
+		arm*) arch=arm;;
+		aarch64*) arch=arm64;;
+		ppc*) arch=powerpc;;
+		mips*) arch=mips;;
+	esac
+
+	# Run depmod after compressing modules.
+	sed -i '2iexit 0' scripts/depmod.sh
+
+	# Install kernel, firmware and modules
+	make ${makejobs} ARCH=${subarch:-$arch} INSTALL_MOD_PATH=${DESTDIR} modules_install
+
+	hdrdest=${DESTDIR}/usr/src/kernel-headers-${_kernver}
+
+	vinstall .config 644 boot config-${_kernver}
+	vinstall System.map 644 boot System.map-${_kernver}
+
+	case "$arch" in
+		x86)
+			vinstall arch/x86/boot/bzImage 644 boot vmlinuz-${_kernver}
+			;;
+		arm)
+			vinstall arch/arm/boot/zImage 644 boot
+			make ${makejobs} ARCH=${subarch:-$arch} INSTALL_DTBS_PATH=${DESTDIR}/boot/dtbs/dtbs-${_kernver} dtbs_install
+			;;
+		arm64)
+			vinstall arch/arm64/boot/Image 644 boot vmlinux-${_kernver}
+			make ${makejobs} ARCH=${subarch:-$arch} INSTALL_DTBS_PATH=${DESTDIR}/boot/dtbs/dtbs-${_kernver} dtbs_install
+			;;
+		powerpc)
+			# zImage on powerpc is useless as it won't load initramfs
+			# raw vmlinux is huge, and this is nostrip, so do it manually
+			vinstall vmlinux 644 boot vmlinux-${_kernver}
+			/usr/bin/$STRIP ${DESTDIR}/boot/vmlinux-${_kernver}
+			;;
+		mips)
+			vinstall arch/mips/boot/uImage.bin 644 boot uImage-${_kernver}
+			make ${makejobs} ARCH=${subarch:-$arch} INSTALL_DTBS_PATH=${DESTDIR}/boot/dtbs/dtbs-${_kernver} dtbs_install
+			;;
+	esac
+
+	# Switch to /usr.
+	vmkdir usr
+	mv ${DESTDIR}/lib ${DESTDIR}/usr
+
+	cd ${DESTDIR}/usr/lib/modules/${_kernver}
+	rm -f source build
+	ln -sf ../../../src/kernel-headers-${_kernver} build
+
+	cd ${wrksrc}
+	# Install required headers to build external modules
+	install -Dm644 Makefile ${hdrdest}/Makefile
+	install -Dm644 kernel/Makefile ${hdrdest}/kernel/Makefile
+	install -Dm644 .config ${hdrdest}/.config
+	for file in $(find . -name Kconfig\*); do
+		mkdir -p ${hdrdest}/$(dirname $file)
+		install -Dm644 $file ${hdrdest}/${file}
+	done
+	for file in $(find arch/${subarch:-$arch} -name module.lds -o -name Kbuild.platforms -o -name Platform); do
+		mkdir -p ${hdrdest}/$(dirname $file)
+		install -Dm644 $file ${hdrdest}/${file}
+	done
+	mkdir -p ${hdrdest}/include
+	# Remove firmware stuff provided by the "linux-firmware" pkg.
+	rm -rf ${DESTDIR}/usr/lib/firmware
+
+	for i in acpi asm-generic clocksource config crypto drm generated linux vdso \
+		math-emu media net pcmcia scsi sound trace uapi video xen dt-bindings; do
+		if [ -d include/$i ]; then
+			cp -a include/$i ${hdrdest}/include
+		fi
+	done
+
+	cd ${wrksrc}
+	mkdir -p ${hdrdest}/arch/${arch}
+	cp -a arch/${arch}/include ${hdrdest}/arch/${arch}
+
+	# Remove helper binaries built for host,
+	# if generated files from the scripts/ directory need to be included,
+	# they need to be copied to ${hdrdest} before this step
+	if [ "$CROSS_BUILD" ]; then
+		make ${makejobs} ARCH=${subarch:-$arch} _mrproper_scripts
+		# remove host specific objects as well
+		find scripts -name '*.o' -delete
+	fi
+
+	# Copy files necessary for later builds, like nvidia and vmware
+	cp Module.symvers ${hdrdest}
+	cp -a scripts ${hdrdest}
+	mkdir -p ${hdrdest}/security/selinux
+	cp -a security/selinux/include ${hdrdest}/security/selinux
+	mkdir -p ${hdrdest}/tools/include
+	cp -a tools/include/tools ${hdrdest}/tools/include
+
+	mkdir -p ${hdrdest}/arch/${arch}/kernel
+	cp arch/${arch}/Makefile ${hdrdest}/arch/${arch}
+	if [ "$subarch" = "i386" ]; then
+		mkdir -p ${hdrdest}/arch/x86
+		cp arch/x86/Makefile_32.cpu ${hdrdest}/arch/x86
+	fi
+	if [ "$arch" = "x86" ]; then
+		mkdir -p ${hdrdest}/arch/x86/kernel
+		cp arch/x86/kernel/asm-offsets.s ${hdrdest}/arch/x86/kernel
+	elif [ "$arch" = "arm64" ]; then
+		mkdir -p ${hdrdest}/arch/arm64/kernel
+		cp -a arch/arm64/kernel/vdso ${hdrdest}/arch/arm64/kernel/
+	fi
+
+	# add headers for lirc package
+	# pci
+	for i in bt8xx cx88 saa7134; do
+		mkdir -p ${hdrdest}/drivers/media/pci/${i}
+		cp -a drivers/media/pci/${i}/*.h ${hdrdest}/drivers/media/pci/${i}
+	done
+	# usb
+	for i in cpia2 em28xx pwc; do
+		mkdir -p ${hdrdest}/drivers/media/usb/${i}
+		cp -a drivers/media/usb/${i}/*.h ${hdrdest}/drivers/media/usb/${i}
+	done
+	# i2c
+	mkdir -p ${hdrdest}/drivers/media/i2c
+	cp drivers/media/i2c/*.h ${hdrdest}/drivers/media/i2c
+	for i in cx25840; do
+		mkdir -p ${hdrdest}/drivers/media/i2c/${i}
+		cp -a drivers/media/i2c/${i}/*.h ${hdrdest}/drivers/media/i2c/${i}
+	done
+
+	# Add docbook makefile
+	install -Dm644 Documentation/DocBook/Makefile \
+		${hdrdest}/Documentation/DocBook/Makefile
+
+	# Add md headers
+	mkdir -p ${hdrdest}/drivers/md
+	cp drivers/md/*.h ${hdrdest}/drivers/md
+
+	# Add inotify.h
+	mkdir -p ${hdrdest}/include/linux
+	cp include/linux/inotify.h ${hdrdest}/include/linux
+
+	# Add wireless headers
+	mkdir -p ${hdrdest}/net/mac80211/
+	cp net/mac80211/*.h ${hdrdest}/net/mac80211
+
+	# add dvb headers for external modules
+	mkdir -p ${hdrdest}/include/config/dvb/
+	cp include/config/dvb/*.h ${hdrdest}/include/config/dvb/
+
+	# add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
+	mkdir -p ${hdrdest}/drivers/media/dvb-frontends
+	cp drivers/media/dvb-frontends/lgdt330x.h \
+		${hdrdest}/drivers/media/dvb-frontends/
+	cp drivers/media/i2c/msp3400-driver.h ${hdrdest}/drivers/media/i2c/
+
+	# add dvb headers
+	mkdir -p ${hdrdest}/drivers/media/usb/dvb-usb
+	cp drivers/media/usb/dvb-usb/*.h ${hdrdest}/drivers/media/usb/dvb-usb/
+	mkdir -p ${hdrdest}/drivers/media/dvb-frontends
+	cp drivers/media/dvb-frontends/*.h ${hdrdest}/drivers/media/dvb-frontends/
+	mkdir -p ${hdrdest}/drivers/media/tuners
+	cp drivers/media/tuners/*.h ${hdrdest}/drivers/media/tuners/
+
+	# Add xfs and shmem for aufs building
+	mkdir -p ${hdrdest}/fs/xfs/libxfs
+	mkdir -p ${hdrdest}/mm
+	cp fs/xfs/libxfs/xfs_sb.h ${hdrdest}/fs/xfs/libxfs/xfs_sb.h
+
+	# Add objtool binary, needed to build external modules with dkms
+	case "$XBPS_TARGET_MACHINE" in
+		x86_64*)
+			mkdir -p ${hdrdest}/tools/objtool
+			cp tools/objtool/objtool ${hdrdest}/tools/objtool
+			;;
+	esac
+
+	# Remove unneeded architectures
+	case "$arch" in
+		i386|x86_64) _args="arm* p*";;
+		arm|arm64) _args="x86* p*";;
+		powerpc) _args="arm* x86* parisc";;
+		mips) _args="mips* p*";;
+	esac
+	for arch in alpha avr32 blackfin cris frv h8300 \
+		ia64 m* s* um v850 xtensa ${_args}; do
+		rm -rf ${hdrdest}/arch/${arch}
+	done
+	# Keep arch/x86/ras/Kconfig as it is needed by drivers/ras/Kconfig
+	mkdir -p ${hdrdest}/arch/x86/ras
+	cp -a arch/x86/ras/Kconfig ${hdrdest}/arch/x86/ras/Kconfig
+
+	# Extract debugging symbols and compress modules
+	msg_normal "$pkgver: extracting debug info and compressing modules, please wait...\n"
+	install -Dm644 vmlinux ${DESTDIR}/usr/lib/debug/boot/vmlinux-${_kernver}
+	(
+	cd ${DESTDIR}
+	export DESTDIR
+	find ./ -name '*.ko' -print0 | \
+		xargs -0r -n1 -P ${XBPS_MAKEJOBS} ${FILESDIR}/mv-debug
+	)
+	# ... and run depmod again.
+	depmod -b ${DESTDIR}/usr -F System.map ${_kernver}
+}
+linux5.8-headers_package() {
+	preserve=yes
+	nostrip=yes
+	noshlibprovides=yes
+	short_desc+=" - source headers for 3rd party modules"
+	pkg_install() {
+		vmove usr/src
+		vmove usr/lib/modules/${_kernver}/build
+	}
+}
+linux5.8-dbg_package() {
+	preserve=yes
+	nostrip=yes
+	noverifyrdeps=yes
+	noshlibprovides=yes
+	repository=debug
+	short_desc+=" - debugging symbols"
+	pkg_install() {
+		vmove usr/lib/debug
+	}
+}