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-rw-r--r--drivers/gpu/drm/tegra/dc.c55
-rw-r--r--drivers/gpu/drm/tegra/drm.c50
-rw-r--r--drivers/gpu/drm/tegra/drm.h3
3 files changed, 91 insertions, 17 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index ceb2f52c8f7e..5f55a25424a7 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -157,6 +157,32 @@ static int tegra_dc_set_base(struct tegra_dc *dc, int x, int y,
return 0;
}
+void tegra_dc_enable_vblank(struct tegra_dc *dc)
+{
+ unsigned long value, flags;
+
+ spin_lock_irqsave(&dc->lock, flags);
+
+ value = tegra_dc_readl(dc, DC_CMD_INT_MASK);
+ value |= VBLANK_INT;
+ tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
+
+ spin_unlock_irqrestore(&dc->lock, flags);
+}
+
+void tegra_dc_disable_vblank(struct tegra_dc *dc)
+{
+ unsigned long value, flags;
+
+ spin_lock_irqsave(&dc->lock, flags);
+
+ value = tegra_dc_readl(dc, DC_CMD_INT_MASK);
+ value &= ~VBLANK_INT;
+ tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
+
+ spin_unlock_irqrestore(&dc->lock, flags);
+}
+
static const struct drm_crtc_funcs tegra_crtc_funcs = {
.set_config = drm_crtc_helper_set_config,
.destroy = drm_crtc_cleanup,
@@ -485,6 +511,8 @@ static int tegra_crtc_mode_set(struct drm_crtc *crtc,
unsigned long div, value;
int err;
+ drm_vblank_pre_modeset(crtc->dev, dc->pipe);
+
err = tegra_crtc_setup_clk(crtc, mode, &div);
if (err) {
dev_err(dc->dev, "failed to setup clock for CRTC: %d\n", err);
@@ -585,31 +613,23 @@ static void tegra_crtc_prepare(struct drm_crtc *crtc)
tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER);
value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
- tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
-
- value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE);
+
+ value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
+ tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
}
static void tegra_crtc_commit(struct drm_crtc *crtc)
{
struct tegra_dc *dc = to_tegra_dc(crtc);
- unsigned long update_mask;
unsigned long value;
- update_mask = GENERAL_ACT_REQ | WIN_A_ACT_REQ;
-
- tegra_dc_writel(dc, update_mask << 8, DC_CMD_STATE_CONTROL);
-
- value = tegra_dc_readl(dc, DC_CMD_INT_ENABLE);
- value |= FRAME_END_INT;
- tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE);
+ value = GENERAL_ACT_REQ | WIN_A_ACT_REQ |
+ GENERAL_UPDATE | WIN_A_UPDATE;
- value = tegra_dc_readl(dc, DC_CMD_INT_MASK);
- value |= FRAME_END_INT;
- tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
+ tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
- tegra_dc_writel(dc, update_mask, DC_CMD_STATE_CONTROL);
+ drm_vblank_post_modeset(crtc->dev, dc->pipe);
}
static void tegra_crtc_load_lut(struct drm_crtc *crtc)
@@ -626,7 +646,7 @@ static const struct drm_crtc_helper_funcs tegra_crtc_helper_funcs = {
.load_lut = tegra_crtc_load_lut,
};
-static irqreturn_t tegra_drm_irq(int irq, void *data)
+static irqreturn_t tegra_dc_irq(int irq, void *data)
{
struct tegra_dc *dc = data;
unsigned long status;
@@ -971,7 +991,7 @@ static int tegra_dc_drm_init(struct host1x_client *client,
dev_err(dc->dev, "debugfs setup failed: %d\n", err);
}
- err = devm_request_irq(dc->dev, dc->irq, tegra_drm_irq, 0,
+ err = devm_request_irq(dc->dev, dc->irq, tegra_dc_irq, 0,
dev_name(dc->dev), dc);
if (err < 0) {
dev_err(dc->dev, "failed to request IRQ#%u: %d\n", dc->irq,
@@ -1020,6 +1040,7 @@ static int tegra_dc_probe(struct platform_device *pdev)
if (!dc)
return -ENOMEM;
+ spin_lock_init(&dc->lock);
INIT_LIST_HEAD(&dc->list);
dc->dev = &pdev->dev;
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 3a503c9e4686..4e31dace5275 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -40,6 +40,10 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
if (err < 0)
return err;
+ err = drm_vblank_init(drm, drm->mode_config.num_crtc);
+ if (err < 0)
+ return err;
+
err = tegra_drm_fb_init(drm);
if (err < 0)
return err;
@@ -89,6 +93,48 @@ static const struct file_operations tegra_drm_fops = {
.llseek = noop_llseek,
};
+static struct drm_crtc *tegra_crtc_from_pipe(struct drm_device *drm, int pipe)
+{
+ struct drm_crtc *crtc;
+
+ list_for_each_entry(crtc, &drm->mode_config.crtc_list, head) {
+ struct tegra_dc *dc = to_tegra_dc(crtc);
+
+ if (dc->pipe == pipe)
+ return crtc;
+ }
+
+ return NULL;
+}
+
+static u32 tegra_drm_get_vblank_counter(struct drm_device *dev, int crtc)
+{
+ /* TODO: implement real hardware counter using syncpoints */
+ return drm_vblank_count(dev, crtc);
+}
+
+static int tegra_drm_enable_vblank(struct drm_device *drm, int pipe)
+{
+ struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe);
+ struct tegra_dc *dc = to_tegra_dc(crtc);
+
+ if (!crtc)
+ return -ENODEV;
+
+ tegra_dc_enable_vblank(dc);
+
+ return 0;
+}
+
+static void tegra_drm_disable_vblank(struct drm_device *drm, int pipe)
+{
+ struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe);
+ struct tegra_dc *dc = to_tegra_dc(crtc);
+
+ if (crtc)
+ tegra_dc_disable_vblank(dc);
+}
+
struct drm_driver tegra_drm_driver = {
.driver_features = DRIVER_BUS_PLATFORM | DRIVER_MODESET | DRIVER_GEM,
.load = tegra_drm_load,
@@ -96,6 +142,10 @@ struct drm_driver tegra_drm_driver = {
.open = tegra_drm_open,
.lastclose = tegra_drm_lastclose,
+ .get_vblank_counter = tegra_drm_get_vblank_counter,
+ .enable_vblank = tegra_drm_enable_vblank,
+ .disable_vblank = tegra_drm_disable_vblank,
+
.gem_free_object = drm_gem_cma_free_object,
.gem_vm_ops = &drm_gem_cma_vm_ops,
.dumb_create = drm_gem_cma_dumb_create,
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 896ff43d32b1..01f0aee12ad9 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -64,6 +64,7 @@ struct tegra_output;
struct tegra_dc {
struct host1x_client client;
+ spinlock_t lock;
struct host1x *host1x;
struct device *dev;
@@ -130,6 +131,8 @@ struct tegra_dc_window {
extern unsigned int tegra_dc_format(uint32_t format);
extern int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
const struct tegra_dc_window *window);
+extern void tegra_dc_enable_vblank(struct tegra_dc *dc);
+extern void tegra_dc_disable_vblank(struct tegra_dc *dc);
struct tegra_output_ops {
int (*enable)(struct tegra_output *output);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 05:55:14 +0000