similar to: [RFC, drm-misc-next v4 0/9] PCI/VGA: Allowing the user to select the primary video adapter at boot time

From: Sui Jingfeng <suijingfeng at loongson.cn> Patch 1,2 and 3 do basic clean up to the vgaarb module. Patch 4 introduce is_boot_device function callback to vga_client_register Sui Jingfeng (4): PCI/VGA: tidy up the code and comment format PCI/VGA: Use unsigned type for the io_state variable PCI/VGA: only deal with VGA class devices PCI/VGA: introduce is_boot_device function

From: Sui Jingfeng <suijingfeng at loongson.cn> To keep consistent with vga_iostate_to_str() function, the third argument of vga_str_to_iostate() function should be 'unsigned int *'. Signed-off-by: Sui Jingfeng <suijingfeng at loongson.cn> --- drivers/pci/vgaarb.c | 29 +++++++++++++++-------------- include/linux/vgaarb.h | 8 +++----- 2 files changed, 18 insertions(+),

From: Sui Jingfeng <suijingfeng at loongson.cn> Currently, the default VGA device selection is not perfect. Potential problems are: 1) This function is a no-op on non-x86 architectures. 2) It does not take the PCI Bar may get relocated into consideration. 3) It is not effective for the PCI device without a dedicated VRAM Bar. 4) It is device-agnostic, thus it has to waste the effort to

Hi, On 2023/9/5 22:52, Alex Williamson wrote: > On Tue, 5 Sep 2023 03:57:15 +0800 > Sui Jingfeng <sui.jingfeng at linux.dev> wrote: > >> From: Sui Jingfeng <suijingfeng at loongson.cn> >> >> On a machine with multiple GPUs, a Linux user has no control over which >> one is primary at boot time. This series tries to solve above mentioned >>

From: Sui Jingfeng <suijingfeng at loongson.cn> There is no function that can be used to get all PCI(e) devices in a system by matching against its the PCI base class code only, while keep the sub-class code and the programming interface ignored. Therefore, add the pci_get_base_class() function to suit the need. For example, if an application want to process all PCI(e) display devices in a

From: Sui Jingfeng <suijingfeng at loongson.cn> Should be no functional change Cc: Jaroslav Kysela <perex at perex.cz> Cc: Takashi Iwai <tiwai at suse.com> Cc: Fred Oh <fred.oh at linux.intel.com> Cc: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com> Cc: Kai Vehmanen <kai.vehmanen at linux.intel.com> Cc: Bjorn Helgaas <bhelgaas at

From: Sui Jingfeng <suijingfeng at loongson.cn> [why] The vga_is_firmware_default() defined in drivers/pci/vgaarb.c is arch-dependent, it's a dummy on non-x86 architectures currently. This made VGAARB lost an important condition for the arbitration. It could still be wrong even if we remove the #ifdef and #endif guards. because the PCI bar will move (resource re-allocation). [how]

From: Sui Jingfeng <suijingfeng at loongson.cn> [why] The vga_is_firmware_default() defined in drivers/pci/vgaarb.c is arch-dependent, it's a dummy on non-x86 architectures currently. This made VGAARB lost an important condition for the arbitration. It could still be wrong even if we remove the #ifdef and #endif guards. because the PCI bar will move (resource re-allocation). [how]

On Fri, Jun 09, 2023 at 10:27:39AM +0800, Sui Jingfeng wrote: > On 2023/6/9 03:19, Bjorn Helgaas wrote: > > On Thu, Jun 08, 2023 at 07:43:22PM +0800, Sui Jingfeng wrote: > > > From: Sui Jingfeng <suijingfeng at loongson.cn> > > > > > > The vga_is_firmware_default() function is arch-dependent, which doesn't > > > sound right. At least, it also

Match the subject line style: $ git log --oneline drivers/pci/vgaarb.c f321c35feaee PCI/VGA: Replace full MIT license text with SPDX identifier d5109fe4d1ec PCI/VGA: Use unsigned format string to print lock counts 4e6c91847a7f PCI/VGA: Log bridge control messages when adding devices dc593fd48abb PCI/VGA: Remove empty vga_arb_device_card_gone() ... Subject line should be a summary of

From: Sui Jingfeng <suijingfeng at loongson.cn> Should be no functional change. Cc: Alex Deucher <alexander.deucher at amd.com> Signed-off-by: Sui Jingfeng <suijingfeng at loongson.cn> --- drivers/gpu/drm/radeon/radeon_bios.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_bios.c

From: Sui Jingfeng <suijingfeng at loongson.cn> There is no function that can be used to get all PCI(e) devices in a system by matching against its the PCI base class code only, while keep the sub-class code and the programming interface ignored. Therefore, add the pci_get_base_class() function to suit the need. For example, if an application want to process all PCI(e) display devices in a

From: Sui Jingfeng <suijingfeng at loongson.cn> This patch adds the aperture_contain_firmware_fb() function to do the determination. Unfortunately due to the fact that apertures list will be freed dynamically, the location and size information of the firmware fb will be lost after dedicated drivers call aperture_remove_conflicting_devices(), aperture_remove_conflicting_pci_devices() or

Hi Thomas. On Tue, Nov 24, 2020 at 12:38:18PM +0100, Thomas Zimmermann wrote: > Using struct drm_device.pdev is deprecated. Convert nouveau to struct > drm_device.dev. No functional changes. > > Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de> > Cc: Ben Skeggs <bskeggs at redhat.com> Suggestion to an alternative implmentation below. > --- >

On Fri, Feb 24, 2017 at 1:19 PM, Lukas Wunner <lukas at wunner.de> wrote: > An external Thunderbolt GPU can neither drive the laptop's panel nor be > powered off by the platform, so there's no point in registering it with > vga_switcheroo. > In fact, when the external GPU is runtime suspended, > vga_switcheroo will cut power to the internal discrete GPU, resulting in

Hello, For the IWYU project, we have a buildbot on Ubuntu 16.04 and its bundled GCC (which I think is some GCC 5 variant). We're getting a number of -Wstrict-aliasing warnings from JSON.h on this line: https://github.com/llvm-mirror/llvm/blob/master/include/llvm/Support/JSON.h#L455 I'm not sure if GCC has a point here but GCC 7.2 does not complain, so I'm going to guess no. Would

Hi LLVM developers, GCC[1] is able to use Loongson ISA[2] for instruction selection: $ cat hello.c #include <stdio.h> int main(int argc, char *argv[]) { printf("Hello World\n"); return 0; } $ gcc -O0 -S hello.c $ cat hello.s .file 1 "hello.c" .section .mdebug.abi64 .previous .nan legacy .gnu_attribute 4, 1 .abicalls

- my old email address. The ISA_* classes might not be the best choice for this. There's an overall hierarchy and ordering to the ISA_* classes since they represent the generations of the MIPS ISA. If these extensions are available in Loongson chips based on MIPS32r1 and MIPS32r2 for example, it becomes difficult to describe with ISA_* classes without duplicating instruction definitions or

Hi all, I met this error(title) when i was trying to compile llvm-gcc-4.2-2.7 on loongson2f,a mips compatible platform.I also failed to build a cross-compiler and the error message was the same . Is that means llvm-gcc cannot support mips back-end now? Thanks. Here is my configure options: $export TARGET=mips64el-unknown-linux-gnu $../../src/llvm-gcc-4.2-2.7.source/configure

While working on a vga_switcheroo handler for Apple's Macbook Pros I stumbled upon a few bugs regarding the usage of nouveau with other switcheroo handlers and module unloading, here are my fixes for them. Andreas Heider (3): drm/nouveau: Initialize has_optimus drm/nouveau: Check dsm on switcheroo unregister drm/nouveau: Unregister switcheroo client on exit