drm/amdgpu: Merge debug module parameters

Merge all developer debug options available as separated module
parameters in one, making it obvious that are for developers.

Drop the obsolete module options in favor of the new ones.

Signed-off-by: André Almeida <andrealmeid@igalia.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index dff0e80..eaebd28 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1098,6 +1098,10 @@ struct amdgpu_device {
        bool                            dc_enabled;
        /* Mask of active clusters */
        uint32_t                        aid_mask;
+
+       /* Debug */
+       bool                            debug_vm;
+       bool                            debug_largebar;
 };
 
 static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 4de6f53..122472d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1151,7 +1151,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
                job->vm_pd_addr = amdgpu_gmc_pd_addr(vm->root.bo);
        }
 
-       if (amdgpu_vm_debug) {
+       if (adev->debug_vm) {
                /* Invalidate all BOs to test for userspace bugs */
                amdgpu_bo_list_for_each_entry(e, p->bo_list) {
                        struct amdgpu_bo *bo = e->bo;

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 49b1506..745174d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -118,6 +118,14 @@
 #define KMS_DRIVER_MINOR       54
 #define KMS_DRIVER_PATCHLEVEL  0
 
+/*
+ * amdgpu.debug module options. Are all disabled by default
+ */
+enum AMDGPU_DEBUG_MASK {
+       AMDGPU_DEBUG_VM = BIT(0),
+       AMDGPU_DEBUG_LARGEBAR = BIT(1),
+};
+
 unsigned int amdgpu_vram_limit = UINT_MAX;
 int amdgpu_vis_vram_limit;
 int amdgpu_gart_size = -1; /* auto */
@@ -140,7 +148,6 @@ int amdgpu_vm_size = -1;
 int amdgpu_vm_fragment_size = -1;
 int amdgpu_vm_block_size = -1;
 int amdgpu_vm_fault_stop;
-int amdgpu_vm_debug;
 int amdgpu_vm_update_mode = -1;
 int amdgpu_exp_hw_support;
 int amdgpu_dc = -1;
@@ -195,6 +202,7 @@ int amdgpu_vcnfw_log;
 int amdgpu_sg_display = -1; /* auto */
 int amdgpu_user_partt_mode = AMDGPU_AUTO_COMPUTE_PARTITION_MODE;
 int amdgpu_umsch_mm;
+uint amdgpu_debug_mask;
 
 static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work);
 
@@ -406,13 +414,6 @@ module_param_named(vm_block_size, amdgpu_vm_block_size, int, 0444);
 MODULE_PARM_DESC(vm_fault_stop, "Stop on VM fault (0 = never (default), 1 = print first, 2 = always)");
 module_param_named(vm_fault_stop, amdgpu_vm_fault_stop, int, 0444);
 
-/**
- * DOC: vm_debug (int)
- * Debug VM handling (0 = disabled, 1 = enabled). The default is 0 (Disabled).
- */
-MODULE_PARM_DESC(vm_debug, "Debug VM handling (0 = disabled (default), 1 = enabled)");
-module_param_named(vm_debug, amdgpu_vm_debug, int, 0644);
-
 /**
  * DOC: vm_update_mode (int)
  * Override VM update mode. VM updated by using CPU (0 = never, 1 = Graphics only, 2 = Compute only, 3 = Both). The default
@@ -744,18 +745,6 @@ module_param(send_sigterm, int, 0444);
 MODULE_PARM_DESC(send_sigterm,
        "Send sigterm to HSA process on unhandled exception (0 = disable, 1 = enable)");
 
-/**
- * DOC: debug_largebar (int)
- * Set debug_largebar as 1 to enable simulating large-bar capability on non-large bar
- * system. This limits the VRAM size reported to ROCm applications to the visible
- * size, usually 256MB.
- * Default value is 0, diabled.
- */
-int debug_largebar;
-module_param(debug_largebar, int, 0444);
-MODULE_PARM_DESC(debug_largebar,
-       "Debug large-bar flag used to simulate large-bar capability on non-large bar machine (0 = disable, 1 = enable)");
-
 /**
  * DOC: halt_if_hws_hang (int)
  * Halt if HWS hang is detected. Default value, 0, disables the halt on hang.
@@ -948,6 +937,18 @@ module_param_named(user_partt_mode, amdgpu_user_partt_mode, uint, 0444);
 module_param(enforce_isolation, bool, 0444);
 MODULE_PARM_DESC(enforce_isolation, "enforce process isolation between graphics and compute . enforce_isolation = on");
 
+/**
+ * DOC: debug_mask (uint)
+ * Debug options for amdgpu, work as a binary mask with the following options:
+ *
+ * - 0x1: Debug VM handling
+ * - 0x2: Enable simulating large-bar capability on non-large bar system. This
+ *   limits the VRAM size reported to ROCm applications to the visible
+ *   size, usually 256MB.
+ */
+MODULE_PARM_DESC(debug_mask, "debug options for amdgpu, disabled by default");
+module_param_named(debug_mask, amdgpu_debug_mask, uint, 0444);
+
 /* These devices are not supported by amdgpu.
  * They are supported by the mach64, r128, radeon drivers
  */
@@ -2052,6 +2053,19 @@ static void amdgpu_get_secondary_funcs(struct amdgpu_device *adev)
        }
 }
 
+static void amdgpu_init_debug_options(struct amdgpu_device *adev)
+{
+       if (amdgpu_debug_mask & AMDGPU_DEBUG_VM) {
+               pr_info("debug: VM handling debug enabled\n");
+               adev->debug_vm = true;
+       }
+
+       if (amdgpu_debug_mask & AMDGPU_DEBUG_LARGEBAR) {
+               pr_info("debug: enabled simulating large-bar capability on non-large bar system\n");
+               adev->debug_largebar = true;
+       }
+}
+
 static int amdgpu_pci_probe(struct pci_dev *pdev,
                            const struct pci_device_id *ent)
 {
@@ -2230,6 +2244,8 @@ retry_init:
                        amdgpu_get_secondary_funcs(adev);
        }
 
+       amdgpu_init_debug_options(adev);
+
        return 0;
 
 err_pci:

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index ca4d2d4..b1ce22a 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -791,7 +791,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
        default:
                break;
        }
-       if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) && !amdgpu_vm_debug)
+       if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE) && !adev->debug_vm)
                amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va,
                                        args->operation);
 

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 3be07c6..231f5d9 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1403,7 +1403,7 @@ int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
                spin_unlock(&vm->status_lock);
 
                /* Try to reserve the BO to avoid clearing its ptes */
-               if (!amdgpu_vm_debug && dma_resv_trylock(resv))
+               if (!adev->debug_vm && dma_resv_trylock(resv))
                        clear = false;
                /* Somebody else is using the BO right now */
                else

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index c37f1fc..bd762f6 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1021,7 +1021,7 @@ err_drm_file:
 
 bool kfd_dev_is_large_bar(struct kfd_node *dev)
 {
-       if (debug_largebar) {
+       if (dev->kfd->adev->debug_largebar) {
                pr_debug("Simulate large-bar allocation on non large-bar machine\n");
                return true;
        }

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
index 950810b..9459603 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -2116,7 +2116,7 @@ static int kfd_create_vcrat_image_gpu(void *pcrat_image,
        sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
                        sub_type_hdr->length);
 
-       if (debug_largebar)
+       if (kdev->adev->debug_largebar)
                local_mem_info.local_mem_size_private = 0;
 
        if (local_mem_info.local_mem_size_private == 0)