From: Jon Hunter <jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: Vidya Sagar <vidyas-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org,
amurray-tUaQ5FxYRYX4aQPF92CzsNBc4/FLrbF6@public.gmane.org,
bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kthota-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
mmaddireddy-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
sagar.tv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: Re: [PATCH] arm64: tegra: Re-order PCIe aperture mappings
Date: Mon, 6 Jul 2020 19:09:17 +0100 [thread overview]
Message-ID: <d7e37f3c-9d4c-a12d-bd29-df12f5ffb26d@nvidia.com> (raw)
In-Reply-To: <20200706171454.11316-1-vidyas-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
On 06/07/2020 18:14, Vidya Sagar wrote:
> Re-order Tegra194's PCIe aperture mappings to have IO window moved to
> 64-bit aperture and have the entire 32-bit aperture used for accessing
> the configuration space. This makes it to use the entire 32MB of the 32-bit
> aperture for ECAM purpose while booting through ACPI.
>
> Signed-off-by: Vidya Sagar <vidyas-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> ---
> arch/arm64/boot/dts/nvidia/tegra194.dtsi | 36 ++++++++++++------------
> 1 file changed, 18 insertions(+), 18 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> index 4bc187a4eacd..2b378fa06d19 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> @@ -1404,9 +1404,9 @@
> nvidia,aspm-l0s-entrance-latency-us = <3>;
>
> bus-range = <0x0 0xff>;
> - ranges = <0x81000000 0x0 0x30100000 0x0 0x30100000 0x0 0x00100000 /* downstream I/O (1MB) */
> - 0xc3000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000 /* prefetchable memory (768MB) */
> - 0x82000000 0x0 0x40000000 0x12 0x30000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
> + ranges = <0xc3000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000 /* prefetchable memory (768MB) */
> + 0x82000000 0x00 0x40000000 0x12 0x30000000 0x0 0x0fff0000 /* non-prefetchable memory (256MB - 64KB) */
> + 0x81000000 0x00 0x00000000 0x12 0x3fff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
> };
>
> pcie@14120000 {
> @@ -1449,9 +1449,9 @@
> nvidia,aspm-l0s-entrance-latency-us = <3>;
>
> bus-range = <0x0 0xff>;
> - ranges = <0x81000000 0x0 0x32100000 0x0 0x32100000 0x0 0x00100000 /* downstream I/O (1MB) */
> - 0xc3000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000 /* prefetchable memory (768MB) */
> - 0x82000000 0x0 0x40000000 0x12 0x70000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
> + ranges = <0xc3000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000 /* prefetchable memory (768MB) */
> + 0x82000000 0x00 0x40000000 0x12 0x70000000 0x0 0x0fff0000 /* non-prefetchable memory (256MB - 64KB) */
> + 0x81000000 0x00 0x00000000 0x12 0x7fff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
> };
>
> pcie@14140000 {
> @@ -1494,9 +1494,9 @@
> nvidia,aspm-l0s-entrance-latency-us = <3>;
>
> bus-range = <0x0 0xff>;
> - ranges = <0x81000000 0x0 0x34100000 0x0 0x34100000 0x0 0x00100000 /* downstream I/O (1MB) */
> - 0xc3000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000 /* prefetchable memory (768MB) */
> - 0x82000000 0x0 0x40000000 0x12 0xb0000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
> + ranges = <0xc3000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000 /* prefetchable memory (768MB) */
> + 0x82000000 0x00 0x40000000 0x12 0xb0000000 0x0 0x0fff0000 /* non-prefetchable memory (256MB - 64KB) */
> + 0x81000000 0x00 0x00000000 0x12 0xbfff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
> };
>
> pcie@14160000 {
> @@ -1539,9 +1539,9 @@
> nvidia,aspm-l0s-entrance-latency-us = <3>;
>
> bus-range = <0x0 0xff>;
> - ranges = <0x81000000 0x0 0x36100000 0x0 0x36100000 0x0 0x00100000 /* downstream I/O (1MB) */
> - 0xc3000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000 /* prefetchable memory (13GB) */
> - 0x82000000 0x0 0x40000000 0x17 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
> + ranges = <0xc3000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000 /* prefetchable memory (13GB) */
> + 0x82000000 0x00 0x40000000 0x17 0x40000000 0x0 0xbfff0000 /* non-prefetchable memory (3GB - 64KB) */
> + 0x81000000 0x00 0x00000000 0x17 0xffff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
> };
>
> pcie@14180000 {
> @@ -1584,9 +1584,9 @@
> nvidia,aspm-l0s-entrance-latency-us = <3>;
>
> bus-range = <0x0 0xff>;
> - ranges = <0x81000000 0x0 0x38100000 0x0 0x38100000 0x0 0x00100000 /* downstream I/O (1MB) */
> - 0xc3000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000 /* prefetchable memory (13GB) */
> - 0x82000000 0x0 0x40000000 0x1b 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
> + ranges = <0xc3000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000 /* prefetchable memory (13GB) */
> + 0x82000000 0x00 0x40000000 0x1b 0x40000000 0x0 0xbfff0000 /* non-prefetchable memory (3GB - 64KB) */
> + 0x81000000 0x00 0x00000000 0x1b 0xffff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
> };
>
> pcie@141a0000 {
> @@ -1633,9 +1633,9 @@
> nvidia,aspm-l0s-entrance-latency-us = <3>;
>
> bus-range = <0x0 0xff>;
> - ranges = <0x81000000 0x0 0x3a100000 0x0 0x3a100000 0x0 0x00100000 /* downstream I/O (1MB) */
> - 0xc3000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000 /* prefetchable memory (13GB) */
> - 0x82000000 0x0 0x40000000 0x1f 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
> + ranges = <0xc3000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000 /* prefetchable memory (13GB) */
> + 0x82000000 0x00 0x40000000 0x1f 0x40000000 0x0 0xbfff0000 /* non-prefetchable memory (3GB - 64KB) */
> + 0x81000000 0x00 0x00000000 0x1f 0xffff0000 0x0 0x00010000>; /* downstream I/O (64KB) */
> };
>
> pcie_ep@14160000 {
>
Acked-by: Jon Hunter <jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cheers!
Jon
--
nvpublic
next prev parent reply other threads:[~2020-07-06 18:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-06 17:14 [PATCH] arm64: tegra: Re-order PCIe aperture mappings Vidya Sagar
[not found] ` <20200706171454.11316-1-vidyas-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2020-07-06 18:09 ` Jon Hunter [this message]
2020-07-14 8:55 ` Thierry Reding
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