return NULL;
}
+static void tegra_dc_stats_reset(struct tegra_dc_stats *stats)
+{
+ stats->frames = 0;
+ stats->vblank = 0;
+ stats->underflow = 0;
+ stats->overflow = 0;
+}
+
/*
* Reads the active copy of a register. This takes the dc->lock spinlock to
* prevent races with the VBLANK processing which also needs access to the
};
static int tegra_plane_prepare_fb(struct drm_plane *plane,
- struct drm_framebuffer *fb,
const struct drm_plane_state *new_state)
{
return 0;
}
static void tegra_plane_cleanup_fb(struct drm_plane *plane,
- struct drm_framebuffer *fb,
const struct drm_plane_state *old_fb)
{
}
/* position the cursor */
value = (state->crtc_y & 0x3fff) << 16 | (state->crtc_x & 0x3fff);
tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION);
-
}
static void tegra_cursor_atomic_disable(struct drm_plane *plane,
return ERR_PTR(-ENOMEM);
/*
- * We'll treat the cursor as an overlay plane with index 6 here so
- * that the update and activation request bits in DC_CMD_STATE_CONTROL
- * match up.
+ * This index is kind of fake. The cursor isn't a regular plane, but
+ * its update and activation request bits in DC_CMD_STATE_CONTROL do
+ * use the same programming. Setting this fake index here allows the
+ * code in tegra_add_plane_state() to do the right thing without the
+ * need to special-casing the cursor plane.
*/
plane->index = 6;
crtc->state = &state->base;
crtc->state->crtc = crtc;
}
+
+ drm_crtc_vblank_reset(crtc);
}
static struct drm_crtc_state *
.atomic_destroy_state = tegra_crtc_atomic_destroy_state,
};
-static void tegra_dc_stop(struct tegra_dc *dc)
-{
- u32 value;
-
- /* stop the display controller */
- value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND);
- value &= ~DISP_CTRL_MODE_MASK;
- tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND);
-
- tegra_dc_commit(dc);
-}
-
-static bool tegra_dc_idle(struct tegra_dc *dc)
-{
- u32 value;
-
- value = tegra_dc_readl_active(dc, DC_CMD_DISPLAY_COMMAND);
-
- return (value & DISP_CTRL_MODE_MASK) == 0;
-}
-
-static int tegra_dc_wait_idle(struct tegra_dc *dc, unsigned long timeout)
-{
- timeout = jiffies + msecs_to_jiffies(timeout);
-
- while (time_before(jiffies, timeout)) {
- if (tegra_dc_idle(dc))
- return 0;
-
- usleep_range(1000, 2000);
- }
-
- dev_dbg(dc->dev, "timeout waiting for DC to become idle\n");
- return -ETIMEDOUT;
-}
-
-static void tegra_crtc_disable(struct drm_crtc *crtc)
-{
- struct tegra_dc *dc = to_tegra_dc(crtc);
- u32 value;
-
- if (!tegra_dc_idle(dc)) {
- tegra_dc_stop(dc);
-
- /*
- * Ignore the return value, there isn't anything useful to do
- * in case this fails.
- */
- tegra_dc_wait_idle(dc, 100);
- }
-
- /*
- * This should really be part of the RGB encoder driver, but clearing
- * these bits has the side-effect of stopping the display controller.
- * When that happens no VBLANK interrupts will be raised. At the same
- * time the encoder is disabled before the display controller, so the
- * above code is always going to timeout waiting for the controller
- * to go idle.
- *
- * Given the close coupling between the RGB encoder and the display
- * controller doing it here is still kind of okay. None of the other
- * encoder drivers require these bits to be cleared.
- *
- * XXX: Perhaps given that the display controller is switched off at
- * this point anyway maybe clearing these bits isn't even useful for
- * the RGB encoder?
- */
- if (dc->rgb) {
- value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL);
- value &= ~(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
- PW4_ENABLE | PM0_ENABLE | PM1_ENABLE);
- tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
- }
-
- drm_crtc_vblank_off(crtc);
-}
-
-static bool tegra_crtc_mode_fixup(struct drm_crtc *crtc,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted)
-{
- return true;
-}
-
static int tegra_dc_set_timings(struct tegra_dc *dc,
struct drm_display_mode *mode)
{
tegra_dc_writel(dc, value, DC_DISP_DISP_CLOCK_CONTROL);
}
-static void tegra_crtc_mode_set_nofb(struct drm_crtc *crtc)
+static void tegra_dc_stop(struct tegra_dc *dc)
+{
+ u32 value;
+
+ /* stop the display controller */
+ value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND);
+ value &= ~DISP_CTRL_MODE_MASK;
+ tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND);
+
+ tegra_dc_commit(dc);
+}
+
+static bool tegra_dc_idle(struct tegra_dc *dc)
+{
+ u32 value;
+
+ value = tegra_dc_readl_active(dc, DC_CMD_DISPLAY_COMMAND);
+
+ return (value & DISP_CTRL_MODE_MASK) == 0;
+}
+
+static int tegra_dc_wait_idle(struct tegra_dc *dc, unsigned long timeout)
+{
+ timeout = jiffies + msecs_to_jiffies(timeout);
+
+ while (time_before(jiffies, timeout)) {
+ if (tegra_dc_idle(dc))
+ return 0;
+
+ usleep_range(1000, 2000);
+ }
+
+ dev_dbg(dc->dev, "timeout waiting for DC to become idle\n");
+ return -ETIMEDOUT;
+}
+
+static void tegra_crtc_disable(struct drm_crtc *crtc)
+{
+ struct tegra_dc *dc = to_tegra_dc(crtc);
+ u32 value;
+
+ if (!tegra_dc_idle(dc)) {
+ tegra_dc_stop(dc);
+
+ /*
+ * Ignore the return value, there isn't anything useful to do
+ * in case this fails.
+ */
+ tegra_dc_wait_idle(dc, 100);
+ }
+
+ /*
+ * This should really be part of the RGB encoder driver, but clearing
+ * these bits has the side-effect of stopping the display controller.
+ * When that happens no VBLANK interrupts will be raised. At the same
+ * time the encoder is disabled before the display controller, so the
+ * above code is always going to timeout waiting for the controller
+ * to go idle.
+ *
+ * Given the close coupling between the RGB encoder and the display
+ * controller doing it here is still kind of okay. None of the other
+ * encoder drivers require these bits to be cleared.
+ *
+ * XXX: Perhaps given that the display controller is switched off at
+ * this point anyway maybe clearing these bits isn't even useful for
+ * the RGB encoder?
+ */
+ if (dc->rgb) {
+ value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL);
+ value &= ~(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
+ PW4_ENABLE | PM0_ENABLE | PM1_ENABLE);
+ tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
+ }
+
+ tegra_dc_stats_reset(&dc->stats);
+ drm_crtc_vblank_off(crtc);
+}
+
+static void tegra_crtc_enable(struct drm_crtc *crtc)
{
struct drm_display_mode *mode = &crtc->state->adjusted_mode;
struct tegra_dc_state *state = to_dc_state(crtc->state);
tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL);
tegra_dc_commit(dc);
-}
-static void tegra_crtc_prepare(struct drm_crtc *crtc)
-{
- drm_crtc_vblank_off(crtc);
-}
-
-static void tegra_crtc_commit(struct drm_crtc *crtc)
-{
drm_crtc_vblank_on(crtc);
}
return 0;
}
-static void tegra_crtc_atomic_begin(struct drm_crtc *crtc)
+static void tegra_crtc_atomic_begin(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
{
struct tegra_dc *dc = to_tegra_dc(crtc);
}
}
-static void tegra_crtc_atomic_flush(struct drm_crtc *crtc)
+static void tegra_crtc_atomic_flush(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
{
struct tegra_dc_state *state = to_dc_state(crtc->state);
struct tegra_dc *dc = to_tegra_dc(crtc);
static const struct drm_crtc_helper_funcs tegra_crtc_helper_funcs = {
.disable = tegra_crtc_disable,
- .mode_fixup = tegra_crtc_mode_fixup,
- .mode_set_nofb = tegra_crtc_mode_set_nofb,
- .prepare = tegra_crtc_prepare,
- .commit = tegra_crtc_commit,
+ .enable = tegra_crtc_enable,
.atomic_check = tegra_crtc_atomic_check,
.atomic_begin = tegra_crtc_atomic_begin,
.atomic_flush = tegra_crtc_atomic_flush,
/*
dev_dbg(dc->dev, "%s(): frame end\n", __func__);
*/
+ dc->stats.frames++;
}
if (status & VBLANK_INT) {
*/
drm_crtc_handle_vblank(&dc->base);
tegra_dc_finish_page_flip(dc);
+ dc->stats.vblank++;
}
if (status & (WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT)) {
/*
dev_dbg(dc->dev, "%s(): underflow\n", __func__);
*/
+ dc->stats.underflow++;
+ }
+
+ if (status & (WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT)) {
+ /*
+ dev_dbg(dc->dev, "%s(): overflow\n", __func__);
+ */
+ dc->stats.overflow++;
}
return IRQ_HANDLED;
{
struct drm_info_node *node = s->private;
struct tegra_dc *dc = node->info_ent->data;
+ int err = 0;
+
+ drm_modeset_lock_crtc(&dc->base, NULL);
+
+ if (!dc->base.state->active) {
+ err = -EBUSY;
+ goto unlock;
+ }
#define DUMP_REG(name) \
seq_printf(s, "%-40s %#05x %08x\n", #name, name, \
#undef DUMP_REG
+unlock:
+ drm_modeset_unlock_crtc(&dc->base);
+ return err;
+}
+
+static int tegra_dc_show_crc(struct seq_file *s, void *data)
+{
+ struct drm_info_node *node = s->private;
+ struct tegra_dc *dc = node->info_ent->data;
+ int err = 0;
+ u32 value;
+
+ drm_modeset_lock_crtc(&dc->base, NULL);
+
+ if (!dc->base.state->active) {
+ err = -EBUSY;
+ goto unlock;
+ }
+
+ value = DC_COM_CRC_CONTROL_ACTIVE_DATA | DC_COM_CRC_CONTROL_ENABLE;
+ tegra_dc_writel(dc, value, DC_COM_CRC_CONTROL);
+ tegra_dc_commit(dc);
+
+ drm_crtc_wait_one_vblank(&dc->base);
+ drm_crtc_wait_one_vblank(&dc->base);
+
+ value = tegra_dc_readl(dc, DC_COM_CRC_CHECKSUM);
+ seq_printf(s, "%08x\n", value);
+
+ tegra_dc_writel(dc, 0, DC_COM_CRC_CONTROL);
+
+unlock:
+ drm_modeset_unlock_crtc(&dc->base);
+ return err;
+}
+
+static int tegra_dc_show_stats(struct seq_file *s, void *data)
+{
+ struct drm_info_node *node = s->private;
+ struct tegra_dc *dc = node->info_ent->data;
+
+ seq_printf(s, "frames: %lu\n", dc->stats.frames);
+ seq_printf(s, "vblank: %lu\n", dc->stats.vblank);
+ seq_printf(s, "underflow: %lu\n", dc->stats.underflow);
+ seq_printf(s, "overflow: %lu\n", dc->stats.overflow);
+
return 0;
}
static struct drm_info_list debugfs_files[] = {
{ "regs", tegra_dc_show_regs, 0, NULL },
+ { "crc", tegra_dc_show_crc, 0, NULL },
+ { "stats", tegra_dc_show_stats, 0, NULL },
};
static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor)
static int tegra_dc_init(struct host1x_client *client)
{
struct drm_device *drm = dev_get_drvdata(client->parent);
+ unsigned long flags = HOST1X_SYNCPT_CLIENT_MANAGED;
struct tegra_dc *dc = host1x_client_to_dc(client);
struct tegra_drm *tegra = drm->dev_private;
struct drm_plane *primary = NULL;
u32 value;
int err;
+ dc->syncpt = host1x_syncpt_request(dc->dev, flags);
+ if (!dc->syncpt)
+ dev_warn(dc->dev, "failed to allocate syncpoint\n");
+
if (tegra->domain) {
err = iommu_attach_device(tegra->domain, dc->dev);
if (err < 0) {
tegra_dc_writel(dc, value, DC_CMD_CONT_SYNCPT_VSYNC);
}
- value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | WIN_A_OF_INT;
+ value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT |
+ WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT;
tegra_dc_writel(dc, value, DC_CMD_INT_TYPE);
value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT |
WINDOW_B_THRESHOLD(1) | WINDOW_C_THRESHOLD(1);
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;
+ value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT |
+ WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT;
tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE);
- value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT;
+ value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT |
+ WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT;
tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
if (dc->soc->supports_border_color)
tegra_dc_writel(dc, 0, DC_DISP_BORDER_COLOR);
+ tegra_dc_stats_reset(&dc->stats);
+
return 0;
cleanup:
dc->domain = NULL;
}
+ host1x_syncpt_free(dc->syncpt);
+
return 0;
}
.has_powergate = true,
};
+static const struct tegra_dc_soc_info tegra210_dc_soc_info = {
+ .supports_border_color = false,
+ .supports_interlacing = true,
+ .supports_cursor = true,
+ .supports_block_linear = true,
+ .pitch_align = 64,
+ .has_powergate = true,
+};
+
static const struct of_device_id tegra_dc_of_match[] = {
{
+ .compatible = "nvidia,tegra210-dc",
+ .data = &tegra210_dc_soc_info,
+ }, {
.compatible = "nvidia,tegra124-dc",
.data = &tegra124_dc_soc_info,
}, {
static int tegra_dc_probe(struct platform_device *pdev)
{
- unsigned long flags = HOST1X_SYNCPT_CLIENT_MANAGED;
const struct of_device_id *id;
struct resource *regs;
struct tegra_dc *dc;
return err;
}
- dc->syncpt = host1x_syncpt_request(&pdev->dev, flags);
- if (!dc->syncpt)
- dev_warn(&pdev->dev, "failed to allocate syncpoint\n");
-
platform_set_drvdata(pdev, dc);
return 0;
struct tegra_dc *dc = platform_get_drvdata(pdev);
int err;
- host1x_syncpt_free(dc->syncpt);
-
err = host1x_client_unregister(&dc->client);
if (err < 0) {
dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",
struct platform_driver tegra_dc_driver = {
.driver = {
.name = "tegra-dc",
- .owner = THIS_MODULE,
.of_match_table = tegra_dc_of_match,
},
.probe = tegra_dc_probe,
Code Review / kvmfornfv.git / blobdiff