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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,...

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 l...

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 VG...

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 problem by introduced the ->be_primary() function stub. The specific device drivers can provide an implementation to hook up with th...

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/...

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...

...I/VGA: Remove empty vga_arb_device_card_gone() ... Subject line should be a summary of the commit log, not just "various style fixes". This one needs to say something about vga_str_to_iostate(). On Mon, Jun 05, 2023 at 04:58:30AM +0800, Sui Jingfeng wrote: > 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 ++++...

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....

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....

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...

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,...

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_confli...

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 >> problem by introduced the ->be_primary() function stub. The specific >> device drivers can...

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 works on the Mips and LoongArch platforms. > > > Tested with the drm/amdgpu and drm/radeon drivers. However, it's...

Hi, On 2023/9/7 17:08, Christian K?nig wrote: > I strongly suggest that you just completely drop this here Drop this is OK, no problem. Then I will go to develop something else. This version is not intended to merge originally, as it's a RFC. Also, the core mechanism already finished, it is the first patch in this series. Things left are just policy (how to specify one and parse the