2 Commits

Author	SHA1	Message	Date
Preetham Chandru Ramchandra	7306f2b131	gpu: nvpgu: unpowergate GPU in ioctl_tsg_open() ... The nvgpu_ioctl_tsg_open() does not make sure that GPU is unpowergated. Due to this it leads to kernel panic when GPU registers are accessed when powergated. __gk20a_warn_on_no_regs+0x38/0x58 [nvgpu] __nvgpu_readl+0x74/0xc8 [nvgpu] nvgpu_readl+0x28/0x60 [nvgpu] xxxxx_ce_get_num_pce+0x28/0x70 [nvgpu] xxxxx_fifo_init_eng_method_buffers+0x64/0x1c0 [nvgpu] gk20a_tsg_open+0x110/0x1e0 [nvgpu] nvgpu_ioctl_tsg_open+0x88/0x100 [nvgpu] gk20a_ctrl_dev_ioctl+0x734/0x2388 [nvgpu] do_vfs_ioctl+0xc4/0x918 SyS_ioctl+0x94/0xa8 This change fixes this issue by calling gk20a_busy()/gk20a_idle() in nvgpu_ioctl_tsg_open() Bug 2268533 JIRA NVGPU-1016 Change-Id: I578289e7eb60295d6b6169b754a5cc60f7546fd5 Signed-off-by: Preetham Chandru Ramchandra <pchandru@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1794324 Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>	2018-08-14 02:00:02 -07:00
Terje Bergstrom	2a2c16af5f	gpu: nvgpu: Move Linux files away from common ... Move all Linux source code files to drivers/gpu/nvgpu/os/linux from drivers/gpu/nvgpu/common/linux. This changes the meaning of common to be OS independent. JIRA NVGPU-598 JIRA NVGPU-601 Change-Id: Ib7f2a43d3688bb0d0b7dcc48469a6783fd988ce9 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1747714 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>	2018-06-15 17:47:31 -07:00