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Date:   Fri, 21 Oct 2016 11:08:46 +0800
From:   Zhenyu Wang <zhenyuw@...ux.intel.com>
To:     Jani Nikula <jani.nikula@...ux.intel.com>
Cc:     Daniel Vetter <daniel@...ll.ch>,
        Randy Dunlap <rdunlap@...radead.org>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        intel-gfx <intel-gfx@...ts.freedesktop.org>,
        linux-next <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: [Intel-gfx] linux-next: Tree for Oct 20 (gpu/drm/i915)

On 2016.10.20 21:25:03 +0300, Jani Nikula wrote:
> On Thu, 20 Oct 2016, Daniel Vetter <daniel@...ll.ch> wrote:
> > On Thu, Oct 20, 2016 at 7:37 PM, Randy Dunlap <rdunlap@...radead.org> wrote:
> >> On 10/19/16 20:20, Stephen Rothwell wrote:
> >>> Hi all,
> >>>
> >>> Changes since 20161019:
> >>>
> >>
> >> on i386: when CONFIG_ACPI is not enabled:
> >
> > Adding Zhenyu. Might be good to have a fix just for this that I
> > directly pick up, since I want to tag the first 4.10 pull for Dave
> > Airlie this w/e.
> 
> How about just this?
>

I'd like to not depend on acpi function any more, so just change that
for memremap. GVT-g driver currently only supports 64BIT kernel so will
fix that dependence. I'll send fix pull for Daniel later.

thanks

> diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
> index 6aedc96aa412..94914381e8ef 100644
> --- a/drivers/gpu/drm/i915/Kconfig
> +++ b/drivers/gpu/drm/i915/Kconfig
> @@ -85,7 +85,7 @@ config DRM_I915_USERPTR
>  
>  config DRM_I915_GVT
>          bool "Enable Intel GVT-g graphics virtualization host support"
> -        depends on DRM_I915
> +        depends on DRM_I915 && ACPI
>          default n
>          help
>  	  Choose this option if you want to enable Intel GVT-g graphics
> 
> 
> 
> > -Daniel
> >
> >> ../drivers/gpu/drm/i915/gvt/opregion.c: In function 'intel_gvt_init_opregion':
> >> ../drivers/gpu/drm/i915/gvt/opregion.c:183:2: error: implicit declaration of function 'acpi_os_ioremap' [-Werror=implicit-function-declaration]
> >>   gvt->opregion.opregion_va = acpi_os_ioremap(gvt->opregion.opregion_pa,
> >>   ^
> >> ../drivers/gpu/drm/i915/gvt/opregion.c:183:28: warning: assignment makes pointer from integer without a cast [enabled by default]
> >>   gvt->opregion.opregion_va = acpi_os_ioremap(gvt->opregion.opregion_pa,
> >>                             ^
> >> ../drivers/gpu/drm/i915/gvt/gtt.c: In function 'read_pte64':
> >> ../drivers/gpu/drm/i915/gvt/gtt.c:277:2: warning: left shift count >= width of type [enabled by default]
> >>   pte |= ioread32(addr + 4) << 32;
> >>   ^
> >> ../drivers/gpu/drm/i915/gvt/gtt.c: In function 'gen8_gtt_get_pfn':
> >> ../drivers/gpu/drm/i915/gvt/gtt.c:360:3: warning: left shift count >= width of type [enabled by default]
> >>    pfn = (e->val64 & ADDR_4K_MASK) >> 12;
> >>    ^
> >> ../drivers/gpu/drm/i915/gvt/gtt.c: In function 'gen8_gtt_set_pfn':
> >> ../drivers/gpu/drm/i915/gvt/gtt.c:373:3: warning: left shift count >= width of type [enabled by default]
> >>    e->val64 &= ~ADDR_4K_MASK;
> >>    ^
> >> ../drivers/gpu/drm/i915/gvt/gtt.c:374:3: warning: left shift count >= width of type [enabled by default]
> >>    pfn &= (ADDR_4K_MASK >> 12);
> >>    ^
> >> ../drivers/gpu/drm/i915/gvt/gtt.c: In function 'gen8_gma_to_pml4_index':
> >> ../drivers/gpu/drm/i915/gvt/gtt.c:436:1: warning: right shift count >= width of type [enabled by default]
> >>  DEFINE_PPGTT_GMA_TO_INDEX(gen8, pml4, (gma >> 39 & 0x1ff));
> >>  ^
> >>   CC      drivers/gpu/drm/radeon/si_smc.o
> >> In file included from ../drivers/gpu/drm/i915/i915_drv.h:46:0,
> >>                  from ../drivers/gpu/drm/i915/gvt/gtt.c:36:
> >> ../drivers/gpu/drm/i915/gvt/gtt.c: In function 'intel_gvt_create_scratch_page':
> >> ../drivers/gpu/drm/i915/gvt/gtt.c:1945:47: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
> >>    gvt_err("fail to translate vaddr:0x%llx\n", (u64)vaddr);
> >>                                                ^
> >> ../include/drm/drmP.h:201:43: note: in definition of macro 'DRM_ERROR'
> >>   drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__)
> >>                                            ^
> >> ../drivers/gpu/drm/i915/gvt/gtt.c:1945:3: note: in expansion of macro 'gvt_err'
> >>    gvt_err("fail to translate vaddr:0x%llx\n", (u64)vaddr);
> >>    ^
> >>
> >>
> >>
> >> --
> >> ~Randy
> >> _______________________________________________
> >> Intel-gfx mailing list
> >> Intel-gfx@...ts.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Jani Nikula, Intel Open Source Technology Center

-- 
Open Source Technology Center, Intel ltd.

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