drm/radeon: make VM size a module parameter (v2)

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / radeon / radeon_drv.c

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index d0eba48dd74e1dc42e07b7e8335e421360fa4421..a09426c7a2f7aefb2c47a5f62fe64f2f4d7ab103 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -115,6 +115,7 @@ extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc,
                                      unsigned int flags,
                                      int *vpos, int *hpos, ktime_t *stime,
                                      ktime_t *etime);
+extern bool radeon_is_px(struct drm_device *dev);
 extern const struct drm_ioctl_desc radeon_ioctls_kms[];
 extern int radeon_max_kms_ioctl;
 int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
@@ -144,11 +145,9 @@ void radeon_debugfs_cleanup(struct drm_minor *minor);
 #if defined(CONFIG_VGA_SWITCHEROO)
 void radeon_register_atpx_handler(void);
 void radeon_unregister_atpx_handler(void);
-bool radeon_is_px(void);
 #else
 static inline void radeon_register_atpx_handler(void) {}
 static inline void radeon_unregister_atpx_handler(void) {}
-static inline bool radeon_is_px(void) { return false; }
 #endif
 
 int radeon_no_wb;
@@ -173,6 +172,7 @@ int radeon_dpm = -1;
 int radeon_aspm = -1;
 int radeon_runtime_pm = -1;
 int radeon_hard_reset = 0;
+int radeon_vm_size = 4096;
 
 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
 module_param_named(no_wb, radeon_no_wb, int, 0444);
@@ -186,7 +186,7 @@ module_param_named(dynclks, radeon_dynclks, int, 0444);
 MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
 module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
 
-MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing");
+MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
 module_param_named(vramlimit, radeon_vram_limit, int, 0600);
 
 MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
@@ -240,6 +240,9 @@ module_param_named(runpm, radeon_runtime_pm, int, 0444);
 MODULE_PARM_DESC(hard_reset, "PCI config reset (1 = force enable, 0 = disable (default))");
 module_param_named(hard_reset, radeon_hard_reset, int, 0444);
 
+MODULE_PARM_DESC(vm_size, "VM address space size in megabytes (default 4GB)");
+module_param_named(vm_size, radeon_vm_size, int, 0444);
+
 static struct pci_device_id pciidlist[] = {
        radeon_PCI_IDS
 };
@@ -405,12 +408,7 @@ static int radeon_pmops_runtime_suspend(struct device *dev)
        struct drm_device *drm_dev = pci_get_drvdata(pdev);
        int ret;
 
-       if (radeon_runtime_pm == 0) {
-               pm_runtime_forbid(dev);
-               return -EBUSY;
-       }
-
-       if (radeon_runtime_pm == -1 && !radeon_is_px()) {
+       if (!radeon_is_px(drm_dev)) {
                pm_runtime_forbid(dev);
                return -EBUSY;
        }
@@ -434,10 +432,7 @@ static int radeon_pmops_runtime_resume(struct device *dev)
        struct drm_device *drm_dev = pci_get_drvdata(pdev);
        int ret;
 
-       if (radeon_runtime_pm == 0)
-               return -EINVAL;
-
-       if (radeon_runtime_pm == -1 && !radeon_is_px())
+       if (!radeon_is_px(drm_dev))
                return -EINVAL;
 
        drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
@@ -462,14 +457,7 @@ static int radeon_pmops_runtime_idle(struct device *dev)
        struct drm_device *drm_dev = pci_get_drvdata(pdev);
        struct drm_crtc *crtc;
 
-       if (radeon_runtime_pm == 0) {
-               pm_runtime_forbid(dev);
-               return -EBUSY;
-       }
-
-       /* are we PX enabled? */
-       if (radeon_runtime_pm == -1 && !radeon_is_px()) {
-               DRM_DEBUG_DRIVER("failing to power off - not px\n");
+       if (!radeon_is_px(drm_dev)) {
                pm_runtime_forbid(dev);
                return -EBUSY;
        }
@@ -535,7 +523,6 @@ static struct drm_driver kms_driver = {
            DRIVER_USE_AGP |
            DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM |
            DRIVER_PRIME | DRIVER_RENDER,
-       .dev_priv_size = 0,
        .load = radeon_driver_load_kms,
        .open = radeon_driver_open_kms,
        .preclose = radeon_driver_preclose_kms,