From 9c696cc57c1a6dab6da6b51f4b30a7d16e233cbc Mon Sep 17 00:00:00 2001 From: André Almeida Date: Wed, 26 Feb 2025 10:11:18 -0300 Subject: drm/amdgpu: Create a debug option to disable ring reset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Prior to the addition of ring reset, the debug option `debug_disable_soft_recovery` could be used to force a full device reset. Now that we have ring reset, create a debug option to disable them in amdgpu, forcing the driver to go with the full device reset path again when both options are combined. This option is useful for testing and debugging purposes when one wants to test the full reset from userspace. Signed-off-by: André Almeida Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 1819166cb4cf..8c1aa9feda53 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -137,6 +137,7 @@ enum AMDGPU_DEBUG_MASK { AMDGPU_DEBUG_USE_VRAM_FW_BUF = BIT(3), AMDGPU_DEBUG_ENABLE_RAS_ACA = BIT(4), AMDGPU_DEBUG_ENABLE_EXP_RESETS = BIT(5), + AMDGPU_DEBUG_DISABLE_GPU_RING_RESET = BIT(6), }; unsigned int amdgpu_vram_limit = UINT_MAX; @@ -2223,6 +2224,11 @@ static void amdgpu_init_debug_options(struct amdgpu_device *adev) pr_info("debug: enable experimental reset features\n"); adev->debug_exp_resets = true; } + + if (amdgpu_debug_mask & AMDGPU_DEBUG_DISABLE_GPU_RING_RESET) { + pr_info("debug: ring reset disabled\n"); + adev->debug_disable_gpu_ring_reset = true; + } } static unsigned long amdgpu_fix_asic_type(struct pci_dev *pdev, unsigned long flags) -- cgit v1.2.3