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Date:      Tue, 23 Dec 2014 12:23:03 +0200
From:      Konstantin Belousov <kostikbel@gmail.com>
To:        Andre Albsmeier <andre@fbsd.ata.myota.org>
Cc:        freebsd-x11@freebsd.org
Subject:   Re: [PATCH] drm2 and i915kms compiled into kernel
Message-ID:  <20141223102303.GC2148@kib.kiev.ua>
In-Reply-To: <20141222184706.GA1922@schlappy>
References:  <20141222184706.GA1922@schlappy>

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On Mon, Dec 22, 2014 at 07:47:06PM +0100, Andre Albsmeier wrote:
> As someone who prefers to have (for me) mandatory stuff compiled
> into the kernel, here is what I had to do w.r.t. drm2 and i915kms
> in case someone likes to do the same (tested on 9.3-STABLE):
> 
The patch below is not correct for HEAD or stable/10, because it does
not take TTM/radeon into the consideration.

I did not added the option to compile i915kms into static kernel, because
display console is non-functional in such setup.  It is changed in
HEAD and 10 with vt(4) integration, but definitely cannot be made
working on 9.

> --- sys/conf/files.ORI	2014-10-31 19:21:35.000000000 +0100
> +++ sys/conf/files	2014-12-18 13:57:01.000000000 +0100
> @@ -1127,6 +1127,70 @@
>  	compile-with "${NORMAL_C} -I$S/dev/e1000"
>  dev/e1000/e1000_osdep.c		optional em | igb \
>  	compile-with "${NORMAL_C} -I$S/dev/e1000"
> +dev/drm2/drm_drv.c		optional drm2
> +dev/drm2/drm_crtc.c		optional drm2
> +dev/drm2/drm_ioc32.c		optional drm2
> +dev/drm2/drm_modes.c		optional drm2
> +dev/drm2/drm_gem_names.c	optional drm2
> +dev/drm2/drm_agpsupport.c	optional drm2
> +dev/drm2/drm_stub.c		optional drm2
> +dev/drm2/drm_context.c		optional drm2
> +dev/drm2/drm_dma.c		optional drm2
> +dev/drm2/drm_irq.c		optional drm2
> +dev/drm2/drm_vm.c		optional drm2
> +dev/drm2/drm_drawable.c		optional drm2
> +dev/drm2/drm_linux_list_sort.c	optional drm2
> +dev/drm2/drm_fops.c		optional drm2
> +dev/drm2/drm_gem.c		optional drm2
> +dev/drm2/drm_bufs.c		optional drm2
> +dev/drm2/drm_ioctl.c		optional drm2
> +dev/drm2/drm_sysctl.c		optional drm2
> +dev/drm2/drm_sman.c		optional drm2
> +dev/drm2/drm_hashtab.c		optional drm2
> +dev/drm2/drm_mm.c		optional drm2
> +dev/drm2/drm_memory.c		optional drm2
> +dev/drm2/drm_global.c		optional drm2
> +dev/drm2/drm_scatter.c		optional drm2
> +dev/drm2/drm_pci.c		optional drm2
> +dev/drm2/drm_auth.c		optional drm2
> +dev/drm2/drm_lock.c		optional drm2
> +dev/drm2/ttm/ttm_tt.c		optional drm2
> +dev/drm2/ttm/ttm_bo.c		optional drm2
> +dev/drm2/ttm/ttm_bo_vm.c	optional drm2
> +dev/drm2/ttm/ttm_bo_util.c	optional drm2
> +dev/drm2/ttm/ttm_memory.c	optional drm2
> +dev/drm2/ttm/ttm_page_alloc.c	optional drm2
> +dev/drm2/drm_crtc_helper.c	optional drm2
> +dev/drm2/drm_edid.c		optional drm2
> +dev/drm2/drm_fb_helper.c	optional drm2
> +dev/drm2/drm_dp_iic_helper.c	optional drm2
> +dev/drm2/i915/i915_drv.c	optional i915kms drm2
> +dev/drm2/i915/i915_dma.c	optional i915kms drm2
> +dev/drm2/i915/i915_gem.c	optional i915kms drm2
> +dev/drm2/i915/i915_gem_gtt.c	optional i915kms drm2
> +dev/drm2/i915/i915_gem_evict.c	optional i915kms drm2
> +dev/drm2/i915/i915_gem_tiling.c optional i915kms drm2
> +dev/drm2/i915/i915_suspend.c	optional i915kms drm2
> +dev/drm2/i915/i915_irq.c	optional i915kms drm2
> +dev/drm2/i915/i915_gem_execbuffer.c optional i915kms drm2
> +dev/drm2/i915/i915_debug.c	optional i915kms drm2
> +dev/drm2/i915/intel_ringbuffer.c optional i915kms drm2
> +dev/drm2/i915/intel_overlay.c	optional i915kms drm2
> +dev/drm2/i915/intel_display.c	optional i915kms drm2
> +dev/drm2/i915/intel_dp.c	optional i915kms drm2
> +dev/drm2/i915/intel_sdvo.c	optional i915kms drm2
> +dev/drm2/i915/intel_panel.c	optional i915kms drm2
> +dev/drm2/i915/intel_opregion.c	optional i915kms drm2
> +dev/drm2/i915/intel_modes.c	optional i915kms drm2
> +dev/drm2/i915/intel_fb.c	optional i915kms drm2
> +dev/drm2/i915/intel_hdmi.c	optional i915kms drm2
> +dev/drm2/i915/intel_sdvo.c	optional i915kms drm2
> +dev/drm2/i915/intel_sprite.c	optional i915kms drm2
> +dev/drm2/i915/intel_iic.c	optional i915kms drm2
> +dev/drm2/i915/intel_bios.c	optional i915kms drm2
> +dev/drm2/i915/intel_crt.c	optional i915kms drm2
> +dev/drm2/i915/intel_lvds.c	optional i915kms drm2
> +dev/drm2/i915/intel_tv.c	optional i915kms drm2
>  dev/et/if_et.c			optional et
>  dev/en/if_en_pci.c		optional en pci
>  dev/en/midway.c			optional en
> 
> Now one can specify drm2 and i915kms in the kernel config and
> the resulting kernel works perfectly.
> 
> For reasons unknown to me, files/patch-i915kms of xf86-video-intel
> makes the driver load the i915kms module unconditionally. This
> results in complaints about existing module (but works otherwise)
> and can be prevented by this patch:
> 
> --- src/intel_device.c.orig	2014-12-18 15:58:17.000000000 +0100
> +++ src/intel_device.c	2014-12-18 16:12:15.000000000 +0100
> @@ -135,6 +135,7 @@
>  
>  		ret = drmCheckModesettingSupported(id);
>  		if (ret || 1) {
> +		    if( kld_isloaded( "vgapci/i915kms") == 0 )
>  			if (xf86LoadKernelModule("i915kms"))
>  				ret = drmCheckModesettingSupported(id);
>  			if (ret)
> 
> 
> For this to work, we have to link xf86-video-intel against libutil.
> I use:
> 
> --- Makefile.ORI	2014-12-22 19:40:20.000000000 +0100
> +++ Makefile	2014-12-22 19:40:45.000000000 +0100
> @@ -28,6 +28,7 @@
>  CONFIGURE_ENV+=	xorg_cv_cc_flag__Wno_maybe_uninitialized=no
>  CONFIGURE_ARGS+=	--enable-sna
>  CONFIGURE_ARGS+=	--disable-glamor
> +CONFIGURE_ARGS+=	LDFLAGS=-lutil
>  INSTALL_TARGET=	install-strip
>  
>  .include <bsd.port.mk>
> 
> 
> Maybe someone even wants to commit this stuff (which doesn't hurt
> when using drm2 and i915kms as module).
> 
> 	-Andre
> 
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