From a769178585177a1414255827acb4317ee513773b Mon Sep 17 00:00:00 2001 From: André Almeida Date: Fri, 15 Sep 2023 16:37:41 +0200 Subject: drm/amdgpu: Rework coredump to use memory dynamically MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of storing coredump information inside amdgpu_device struct, move if to a proper separated struct and allocate it dynamically. This will make it easier to further expand the logged information. Signed-off-by: André Almeida Reviewed-by: Shashank Sharma Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 63 +++++++++++++++++++----------- 1 file changed, 40 insertions(+), 23 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index e055e06d020c..8723377a3bb5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4949,12 +4949,17 @@ static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev) return 0; } -#ifdef CONFIG_DEV_COREDUMP +#ifndef CONFIG_DEV_COREDUMP +static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, + struct amdgpu_reset_context *reset_context) +{ +} +#else static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, size_t count, void *data, size_t datalen) { struct drm_printer p; - struct amdgpu_device *adev = data; + struct amdgpu_coredump_info *coredump = data; struct drm_print_iterator iter; int i; @@ -4968,21 +4973,21 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, drm_printf(&p, "**** AMDGPU Device Coredump ****\n"); drm_printf(&p, "kernel: " UTS_RELEASE "\n"); drm_printf(&p, "module: " KBUILD_MODNAME "\n"); - drm_printf(&p, "time: %lld.%09ld\n", adev->reset_time.tv_sec, adev->reset_time.tv_nsec); - if (adev->reset_task_info.pid) + drm_printf(&p, "time: %lld.%09ld\n", coredump->reset_time.tv_sec, coredump->reset_time.tv_nsec); + if (coredump->reset_task_info.pid) drm_printf(&p, "process_name: %s PID: %d\n", - adev->reset_task_info.process_name, - adev->reset_task_info.pid); + coredump->reset_task_info.process_name, + coredump->reset_task_info.pid); - if (adev->reset_vram_lost) + if (coredump->reset_vram_lost) drm_printf(&p, "VRAM is lost due to GPU reset!\n"); - if (adev->num_regs) { + if (coredump->adev->num_regs) { drm_printf(&p, "AMDGPU register dumps:\nOffset: Value:\n"); - for (i = 0; i < adev->num_regs; i++) + for (i = 0; i < coredump->adev->num_regs; i++) drm_printf(&p, "0x%08x: 0x%08x\n", - adev->reset_dump_reg_list[i], - adev->reset_dump_reg_value[i]); + coredump->adev->reset_dump_reg_list[i], + coredump->adev->reset_dump_reg_value[i]); } return count - iter.remain; @@ -4990,14 +4995,32 @@ static ssize_t amdgpu_devcoredump_read(char *buffer, loff_t offset, static void amdgpu_devcoredump_free(void *data) { + kfree(data); } -static void amdgpu_reset_capture_coredumpm(struct amdgpu_device *adev) +static void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost, + struct amdgpu_reset_context *reset_context) { + struct amdgpu_coredump_info *coredump; struct drm_device *dev = adev_to_drm(adev); - ktime_get_ts64(&adev->reset_time); - dev_coredumpm(dev->dev, THIS_MODULE, adev, 0, GFP_NOWAIT, + coredump = kzalloc(sizeof(*coredump), GFP_NOWAIT); + + if (!coredump) { + DRM_ERROR("%s: failed to allocate memory for coredump\n", __func__); + return; + } + + coredump->reset_vram_lost = vram_lost; + + if (reset_context->job && reset_context->job->vm) + coredump->reset_task_info = reset_context->job->vm->task_info; + + coredump->adev = adev; + + ktime_get_ts64(&coredump->reset_time); + + dev_coredumpm(dev->dev, THIS_MODULE, coredump, 0, GFP_NOWAIT, amdgpu_devcoredump_read, amdgpu_devcoredump_free); } #endif @@ -5102,15 +5125,9 @@ int amdgpu_do_asic_reset(struct list_head *device_list_handle, goto out; vram_lost = amdgpu_device_check_vram_lost(tmp_adev); -#ifdef CONFIG_DEV_COREDUMP - tmp_adev->reset_vram_lost = vram_lost; - memset(&tmp_adev->reset_task_info, 0, - sizeof(tmp_adev->reset_task_info)); - if (reset_context->job && reset_context->job->vm) - tmp_adev->reset_task_info = - reset_context->job->vm->task_info; - amdgpu_reset_capture_coredumpm(tmp_adev); -#endif + + amdgpu_coredump(tmp_adev, vram_lost, reset_context); + if (vram_lost) { DRM_INFO("VRAM is lost due to GPU reset!\n"); amdgpu_inc_vram_lost(tmp_adev); -- cgit