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no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Joel Fernandes , Alistair Popple , Eliot Courtney , Zhi Wang , Simona Vetter , Bjorn Helgaas , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , nouveau@lists.freedesktop.org, rust-for-linux@vger.kernel.org, LKML X-Mailman-Version: 3.3.8 Precedence: list List-Id: Nouveau development list Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Various "reserved" areas of FB (frame buffer: vidmem) have to be calculated, because the GSP booting process needs this information. PMU_RESERVED_SIZE is computed at compile time using const_align_up(). The total reserved size is computed at runtime using Alignable::align_up because it depends on the heap layout. Cc: Timur Tabi Cc: Gary Guo Signed-off-by: John Hubbard --- drivers/gpu/nova-core/fb.rs | 7 ++++++- drivers/gpu/nova-core/gsp/fw.rs | 6 +++++- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/nova-core/fb.rs b/drivers/gpu/nova-core/fb.rs index 6536d0035cb1..0e3519e5ccc0 100644 --- a/drivers/gpu/nova-core/fb.rs +++ b/drivers/gpu/nova-core/fb.rs @@ -11,7 +11,8 @@ prelude::*, ptr::{ Alignable, - Alignment, // + Alignment, + const_align_up, // }, sizes::*, sync::aref::ARef, // @@ -270,3 +271,7 @@ pub(crate) fn new(chipset: Chipset, bar: &Bar0, gsp_fw: &GspFirmware) -> Result< }) } } + +/// PMU reserved size, aligned to 128KB. +pub(crate) const PMU_RESERVED_SIZE: u32 = + const_align_up::(SZ_8M + SZ_16M + SZ_4K) as u32; diff --git a/drivers/gpu/nova-core/gsp/fw.rs b/drivers/gpu/nova-core/gsp/fw.rs index 83ff91614e36..086153edfa86 100644 --- a/drivers/gpu/nova-core/gsp/fw.rs +++ b/drivers/gpu/nova-core/gsp/fw.rs @@ -27,7 +27,10 @@ }; use crate::{ - fb::FbLayout, + fb::{ + FbLayout, + PMU_RESERVED_SIZE, // + }, firmware::gsp::GspFirmware, gpu::Chipset, gsp::{ @@ -183,6 +186,7 @@ pub(crate) fn new(gsp_firmware: &GspFirmware, fb_layout: &FbLayout) -> Self { fbSize: fb_layout.fb.end - fb_layout.fb.start, vgaWorkspaceOffset: fb_layout.vga_workspace.start, vgaWorkspaceSize: fb_layout.vga_workspace.end - fb_layout.vga_workspace.start, + pmuReservedSize: PMU_RESERVED_SIZE, ..Default::default() }) } -- 2.53.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from DM5PR21CU001.outbound.protection.outlook.com (mail-centralusazon11011050.outbound.protection.outlook.com [52.101.62.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5AE5432C939; 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PMU_RESERVED_SIZE is computed at compile time using const_align_up(). The total reserved size is computed at runtime using Alignable::align_up because it depends on the heap layout. Cc: Timur Tabi Cc: Gary Guo Signed-off-by: John Hubbard --- drivers/gpu/nova-core/fb.rs | 7 ++++++- drivers/gpu/nova-core/gsp/fw.rs | 6 +++++- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/nova-core/fb.rs b/drivers/gpu/nova-core/fb.rs index 6536d0035cb1..0e3519e5ccc0 100644 --- a/drivers/gpu/nova-core/fb.rs +++ b/drivers/gpu/nova-core/fb.rs @@ -11,7 +11,8 @@ prelude::*, ptr::{ Alignable, - Alignment, // + Alignment, + const_align_up, // }, sizes::*, sync::aref::ARef, // @@ -270,3 +271,7 @@ pub(crate) fn new(chipset: Chipset, bar: &Bar0, gsp_fw: &GspFirmware) -> Result< }) } } + +/// PMU reserved size, aligned to 128KB. +pub(crate) const PMU_RESERVED_SIZE: u32 = + const_align_up::(SZ_8M + SZ_16M + SZ_4K) as u32; diff --git a/drivers/gpu/nova-core/gsp/fw.rs b/drivers/gpu/nova-core/gsp/fw.rs index 83ff91614e36..086153edfa86 100644 --- a/drivers/gpu/nova-core/gsp/fw.rs +++ b/drivers/gpu/nova-core/gsp/fw.rs @@ -27,7 +27,10 @@ }; use crate::{ - fb::FbLayout, + fb::{ + FbLayout, + PMU_RESERVED_SIZE, // + }, firmware::gsp::GspFirmware, gpu::Chipset, gsp::{ @@ -183,6 +186,7 @@ pub(crate) fn new(gsp_firmware: &GspFirmware, fb_layout: &FbLayout) -> Self { fbSize: fb_layout.fb.end - fb_layout.fb.start, vgaWorkspaceOffset: fb_layout.vga_workspace.start, vgaWorkspaceSize: fb_layout.vga_workspace.end - fb_layout.vga_workspace.start, + pmuReservedSize: PMU_RESERVED_SIZE, ..Default::default() }) } -- 2.53.0