Merge commit 'origin/master' into next

1 files changed, 158 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
new file mode 100644
index 00000000000..491d569deb0
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2008 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Dave Airlie
+ *          Alex Deucher
+ *          Jerome Glisse
+ */
+#include "drmP.h"
+#include "radeon_drm.h"
+#include "radeon_reg.h"
+#include "radeon_microcode.h"
+#include "radeon.h"
+#include "atom.h"
+
+static inline uint32_t r100_irq_ack(struct radeon_device *rdev)
+{
+	uint32_t irqs = RREG32(RADEON_GEN_INT_STATUS);
+	uint32_t irq_mask = RADEON_SW_INT_TEST;
+
+	if (irqs) {
+		WREG32(RADEON_GEN_INT_STATUS, irqs);
+	}
+	return irqs & irq_mask;
+}
+
+int r100_irq_set(struct radeon_device *rdev)
+{
+	uint32_t tmp = 0;
+
+	if (rdev->irq.sw_int) {
+		tmp |= RADEON_SW_INT_ENABLE;
+	}
+	/* Todo go through CRTC and enable vblank int or not */
+	WREG32(RADEON_GEN_INT_CNTL, tmp);
+	return 0;
+}
+
+int r100_irq_process(struct radeon_device *rdev)
+{
+	uint32_t status;
+
+	status = r100_irq_ack(rdev);
+	if (!status) {
+		return IRQ_NONE;
+	}
+	while (status) {
+		/* SW interrupt */
+		if (status & RADEON_SW_INT_TEST) {
+			radeon_fence_process(rdev);
+		}
+		status = r100_irq_ack(rdev);
+	}
+	return IRQ_HANDLED;
+}
+
+int rs600_irq_set(struct radeon_device *rdev)
+{
+	uint32_t tmp = 0;
+
+	if (rdev->irq.sw_int) {
+		tmp |= RADEON_SW_INT_ENABLE;
+	}
+	WREG32(RADEON_GEN_INT_CNTL, tmp);
+	/* Todo go through CRTC and enable vblank int or not */
+	WREG32(R500_DxMODE_INT_MASK, 0);
+	return 0;
+}
+
+irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS)
+{
+	struct drm_device *dev = (struct drm_device *) arg;
+	struct radeon_device *rdev = dev->dev_private;
+
+	return radeon_irq_process(rdev);
+}
+
+void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
+{
+	struct radeon_device *rdev = dev->dev_private;
+	unsigned i;
+
+	/* Disable *all* interrupts */
+	rdev->irq.sw_int = false;
+	for (i = 0; i < 2; i++) {
+		rdev->irq.crtc_vblank_int[i] = false;
+	}
+	radeon_irq_set(rdev);
+	/* Clear bits */
+	radeon_irq_process(rdev);
+}
+
+int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
+{
+	struct radeon_device *rdev = dev->dev_private;
+
+	dev->max_vblank_count = 0x001fffff;
+	rdev->irq.sw_int = true;
+	radeon_irq_set(rdev);
+	return 0;
+}
+
+void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
+{
+	struct radeon_device *rdev = dev->dev_private;
+	unsigned i;
+
+	if (rdev == NULL) {
+		return;
+	}
+	/* Disable *all* interrupts */
+	rdev->irq.sw_int = false;
+	for (i = 0; i < 2; i++) {
+		rdev->irq.crtc_vblank_int[i] = false;
+	}
+	radeon_irq_set(rdev);
+}
+
+int radeon_irq_kms_init(struct radeon_device *rdev)
+{
+	int r = 0;
+
+	r = drm_vblank_init(rdev->ddev, 2);
+	if (r) {
+		return r;
+	}
+	drm_irq_install(rdev->ddev);
+	rdev->irq.installed = true;
+	DRM_INFO("radeon: irq initialized.\n");
+	return 0;
+}
+
+void radeon_irq_kms_fini(struct radeon_device *rdev)
+{
+	if (rdev->irq.installed) {
+		rdev->irq.installed = false;
+		drm_irq_uninstall(rdev->ddev);
+	}
+}