[PATCH v3 9/9] drm/loongson: Add an implement for the is_primary_gpu function callback

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From: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>

Signed-off-by: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>
---
 drivers/gpu/drm/loongson/lsdc_drv.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/loongson/lsdc_drv.c b/drivers/gpu/drm/loongson/lsdc_drv.c
index d10a28c2c494..92ef07d6a534 100644
--- a/drivers/gpu/drm/loongson/lsdc_drv.c
+++ b/drivers/gpu/drm/loongson/lsdc_drv.c
@@ -257,6 +257,14 @@ static unsigned int lsdc_vga_set_decode(struct pci_dev *pdev, bool state)
 	return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 }
 
+static bool lsdc_is_primary_gpu(struct pci_dev *pdev)
+{
+	struct drm_device *ddev = pci_get_drvdata(pdev);
+	struct lsdc_device *ldev = to_lsdc(ddev);
+
+	return drm_aperture_contain_firmware_fb(ldev->vram_base, ldev->vram_size);
+}
+
 static int lsdc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	const struct lsdc_desc *descp;
@@ -289,7 +297,7 @@ static int lsdc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_set_drvdata(pdev, ddev);
 
-	vga_client_register(pdev, lsdc_vga_set_decode, NULL);
+	vga_client_register(pdev, lsdc_vga_set_decode, lsdc_is_primary_gpu);
 
 	drm_kms_helper_poll_init(ddev);
 
-- 
2.25.1




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