Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

On Tue, Apr 25, 2017 at 12:22 PM, Christian König wrote: > Am 25.04.2017 um 17:14 schrieb Alex Deucher: >> >> On Tue, Apr 25, 2017 at 11:09 AM, Christian König >> wrote: >>> >>> Am 25.04.2017 um 16:34 schrieb Alex Deucher: On Tue, Apr

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

On Tue, Apr 25, 2017 at 12:22 PM, Christian König wrote: > Am 25.04.2017 um 17:14 schrieb Alex Deucher: >> >> On Tue, Apr 25, 2017 at 11:09 AM, Christian König >> wrote: >>> >>> Am 25.04.2017 um 16:34 schrieb Alex Deucher: On Tue, Apr 25, 2017 at 9:19 AM, Christian König wrote:

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

Am 25.04.2017 um 17:14 schrieb Alex Deucher: On Tue, Apr 25, 2017 at 11:09 AM, Christian König wrote: Am 25.04.2017 um 16:34 schrieb Alex Deucher: On Tue, Apr 25, 2017 at 9:19 AM, Christian König wrote: From: Christian König

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

Am 25.04.2017 um 17:14 schrieb Alex Deucher: On Tue, Apr 25, 2017 at 11:09 AM, Christian König wrote: Am 25.04.2017 um 16:34 schrieb Alex Deucher: On Tue, Apr 25, 2017 at 9:19 AM, Christian König wrote: From: Christian König Try to resize BAR0 to let CPU access all of VRAM. v2: rebased,

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

Am 25.04.2017 um 16:34 schrieb Alex Deucher: On Tue, Apr 25, 2017 at 9:19 AM, Christian König wrote: From: Christian König Try to resize BAR0 to let CPU access all of VRAM. v2: rebased, style cleanups, disable mem decode before resize,

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

Am 25.04.2017 um 16:34 schrieb Alex Deucher: On Tue, Apr 25, 2017 at 9:19 AM, Christian König wrote: From: Christian König Try to resize BAR0 to let CPU access all of VRAM. v2: rebased, style cleanups, disable mem decode before resize, handle gmc_v9 as well, round size up to power of

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

On Tue, Apr 25, 2017 at 11:09 AM, Christian König wrote: > Am 25.04.2017 um 16:34 schrieb Alex Deucher: >> >> On Tue, Apr 25, 2017 at 9:19 AM, Christian König >> wrote: >>> >>> From: Christian König >>> >>> Try to

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

On Tue, Apr 25, 2017 at 11:09 AM, Christian König wrote: > Am 25.04.2017 um 16:34 schrieb Alex Deucher: >> >> On Tue, Apr 25, 2017 at 9:19 AM, Christian König >> wrote: >>> >>> From: Christian König >>> >>> Try to resize BAR0 to let CPU access all of VRAM. >>> >>> v2: rebased, style cleanups,

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

On Tue, Apr 25, 2017 at 9:19 AM, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > > v2: rebased, style cleanups, disable mem decode before resize, > handle gmc_v9 as well, round size up

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

On Tue, Apr 25, 2017 at 9:19 AM, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > > v2: rebased, style cleanups, disable mem decode before resize, > handle gmc_v9 as well, round size up to power of two. > > Signed-off-by: Christian König

[PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

From: Christian König Try to resize BAR0 to let CPU access all of VRAM. v2: rebased, style cleanups, disable mem decode before resize, handle gmc_v9 as well, round size up to power of two. Signed-off-by: Christian König ---

[PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access v2

From: Christian König Try to resize BAR0 to let CPU access all of VRAM. v2: rebased, style cleanups, disable mem decode before resize, handle gmc_v9 as well, round size up to power of two. Signed-off-by: Christian König --- drivers/gpu/drm/amd/amdgpu/amdgpu.h| 1 +

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

On Mon, Mar 13, 2017 at 01:41:36PM +0100, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > > Signed-off-by: Christian König > --- > drivers/gpu/drm/amd/amdgpu/amdgpu.h| 1 + >

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

On Mon, Mar 13, 2017 at 01:41:36PM +0100, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > > Signed-off-by: Christian König > --- > drivers/gpu/drm/amd/amdgpu/amdgpu.h| 1 + > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 29

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

5, 2017 17:29 To: Zhou, David(ChunMing); Ayyappa Ch Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; amd- g...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; helg...@kernel.org; dri-de...@lists.freedesktop.org Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR fo

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

cher Cc: Zhou, David(ChunMing); Ayyappa Ch; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; dri-de...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; Christian König; helg...@kernel.org; amd-...@lists.freedesktop.org Subject: RE: [PATCH 4/4] drm/amdgpu: resize VRA

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

ux-...@vger.kernel.org; linux-kernel@vger.kernel.org; dri-de...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; Christian König; helg...@kernel.org; amd-...@lists.freedesktop.org Subject: RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access   Thanks for your info. I see.

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

rg; dri-de...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; Christian König; helg...@kernel.org; amd-...@lists.freedesktop.org Subject: RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access   Thanks for your info. I see. Regards, Jerry (Junwei Zhang) Linux Base Graphics SRDC Software D

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

gt;> Sent: Wednesday, March 15, 2017 17:29 > >> To: Zhou, David(ChunMing); Ayyappa Ch > >> Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; amd- > >> g...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; > >> helg...@kernel.org; dri-de...@lists.

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

2017 17:29 > >> To: Zhou, David(ChunMing); Ayyappa Ch > >> Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; amd- > >> g...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; > >> helg...@kernel.org; dri-de...@lists.freedesktop.org > >

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

u, David(ChunMing); Ayyappa Ch >> Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; amd- >> g...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; >> helg...@kernel.org; dri-de...@lists.freedesktop.org >> Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR f

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

Ming); Ayyappa Ch >> Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; amd- >> g...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; >> helg...@kernel.org; dri-de...@lists.freedesktop.org >> Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access >> &

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

rnel.org; amd- > g...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; > helg...@kernel.org; dri-de...@lists.freedesktop.org > Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access > > Yes, exactly that. (I'm not familiar with PCI too much.) Is there any restrict for PCI

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

rnel.org; amd- > g...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; > helg...@kernel.org; dri-de...@lists.freedesktop.org > Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access > > Yes, exactly that. (I'm not familiar with PCI too much.) Is there any restrict for PCI

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

.org; platform-driver-...@vger.kernel.org; > helg...@kernel.org; dri-de...@lists.freedesktop.org > Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access > > Carizzo is an APU and resizing BARs isn't needed nor supported there. > The CPU can access the full stolen VRAM di

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

.org; platform-driver-...@vger.kernel.org; > helg...@kernel.org; dri-de...@lists.freedesktop.org > Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access > > Carizzo is an APU and resizing BARs isn't needed nor supported there. > The CPU can access the full stolen VRAM di

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

No, we resize the BAR on the fly during driver load without help from the BIOS or VBIOS. Christian. Am 15.03.2017 um 11:42 schrieb Ayyappa Ch: It also needs any support from VBIOS side ? I mean PCIe large bar support? Thanks, Ayyappa. On Wed, Mar 15, 2017 at 1:07 PM, Christian König

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

No, we resize the BAR on the fly during driver load without help from the BIOS or VBIOS. Christian. Am 15.03.2017 um 11:42 schrieb Ayyappa Ch: It also needs any support from VBIOS side ? I mean PCIe large bar support? Thanks, Ayyappa. On Wed, Mar 15, 2017 at 1:07 PM, Christian König wrote:

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

It also needs any support from VBIOS side ? I mean PCIe large bar support? Thanks, Ayyappa. On Wed, Mar 15, 2017 at 1:07 PM, Christian König wrote: > Carizzo is an APU and resizing BARs isn't needed nor supported there. The > CPU can access the full stolen VRAM directly

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

It also needs any support from VBIOS side ? I mean PCIe large bar support? Thanks, Ayyappa. On Wed, Mar 15, 2017 at 1:07 PM, Christian König wrote: > Carizzo is an APU and resizing BARs isn't needed nor supported there. The > CPU can access the full stolen VRAM directly on that hardware. > > As

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

, 2017 3:38 PM To: Ayyappa Ch <ayyappa.ch.li...@gmail.com> Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; amd-...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; helg...@kernel.org; dri-de...@lists.freedesktop.org Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR f

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

, 2017 3:38 PM To: Ayyappa Ch Cc: linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; amd-...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; helg...@kernel.org; dri-de...@lists.freedesktop.org Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access Carizzo is an APU

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

el.org; linux-kernel@vger.kernel.org; amd-...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; helg...@kernel.org; dri-de...@lists.freedesktop.org Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access Carizzo is an APU and resizing BARs isn't needed nor supported there. T

RE: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

; amd-...@lists.freedesktop.org; platform-driver-...@vger.kernel.org; helg...@kernel.org; dri-de...@lists.freedesktop.org Subject: Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access Carizzo is an APU and resizing BARs isn't needed nor supported there. The CPU can access the full stolen

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

Carizzo is an APU and resizing BARs isn't needed nor supported there. The CPU can access the full stolen VRAM directly on that hardware. As far as I know ASICs with support for this are Tonga, Fiji and all Polaris variants. Christian. Am 15.03.2017 um 08:23 schrieb Ayyappa Ch: Is it

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

Carizzo is an APU and resizing BARs isn't needed nor supported there. The CPU can access the full stolen VRAM directly on that hardware. As far as I know ASICs with support for this are Tonga, Fiji and all Polaris variants. Christian. Am 15.03.2017 um 08:23 schrieb Ayyappa Ch: Is it

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

Is it possible on Carrizo asics? Or only supports on newer asics? On Mon, Mar 13, 2017 at 6:11 PM, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > > Signed-off-by: Christian König

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

Is it possible on Carrizo asics? Or only supports on newer asics? On Mon, Mar 13, 2017 at 6:11 PM, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > > Signed-off-by: Christian König > --- > drivers/gpu/drm/amd/amdgpu/amdgpu.h| 1 +

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

On Mon, Mar 13, 2017 at 2:41 PM, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > +void amdgpu_resize_bar0(struct amdgpu_device *adev) > +{ > + u32 size =

Re: [PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

On Mon, Mar 13, 2017 at 2:41 PM, Christian König wrote: > From: Christian König > > Try to resize BAR0 to let CPU access all of VRAM. > +void amdgpu_resize_bar0(struct amdgpu_device *adev) > +{ > + u32 size = max(ilog2(adev->mc.real_vram_size - 1) + 1, 20) - 20; > + int r; > + > +

[PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

From: Christian König Try to resize BAR0 to let CPU access all of VRAM. Signed-off-by: Christian König --- drivers/gpu/drm/amd/amdgpu/amdgpu.h| 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 29 +

[PATCH 4/4] drm/amdgpu: resize VRAM BAR for CPU access

From: Christian König Try to resize BAR0 to let CPU access all of VRAM. Signed-off-by: Christian König --- drivers/gpu/drm/amd/amdgpu/amdgpu.h| 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 29 + drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 8 +---