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-rw-r--r--drivers/gpu/drm/armada/Kconfig14
-rw-r--r--drivers/gpu/drm/armada/Makefile8
-rw-r--r--drivers/gpu/drm/armada/armada_510.c159
-rw-r--r--drivers/gpu/drm/armada/armada_crtc.c1105
-rw-r--r--drivers/gpu/drm/armada/armada_crtc.h96
-rw-r--r--drivers/gpu/drm/armada/armada_debugfs.c111
-rw-r--r--drivers/gpu/drm/armada/armada_drm.h88
-rw-r--r--drivers/gpu/drm/armada/armada_drv.c279
-rw-r--r--drivers/gpu/drm/armada/armada_fb.c140
-rw-r--r--drivers/gpu/drm/armada/armada_fb.h23
-rw-r--r--drivers/gpu/drm/armada/armada_fbdev.c220
-rw-r--r--drivers/gpu/drm/armada/armada_gem.c561
-rw-r--r--drivers/gpu/drm/armada/armada_gem.h45
-rw-r--r--drivers/gpu/drm/armada/armada_hw.h330
-rw-r--r--drivers/gpu/drm/armada/armada_ioctlP.h15
-rw-r--r--drivers/gpu/drm/armada/armada_overlay.c597
-rw-r--r--drivers/gpu/drm/armada/armada_plane.c312
-rw-r--r--drivers/gpu/drm/armada/armada_plane.h36
-rw-r--r--drivers/gpu/drm/armada/armada_trace.c5
-rw-r--r--drivers/gpu/drm/armada/armada_trace.h90
20 files changed, 4234 insertions, 0 deletions
diff --git a/drivers/gpu/drm/armada/Kconfig b/drivers/gpu/drm/armada/Kconfig
new file mode 100644
index 0000000000..e5597d7c9a
--- /dev/null
+++ b/drivers/gpu/drm/armada/Kconfig
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config DRM_ARMADA
+ tristate "DRM support for Marvell Armada SoCs"
+ depends on DRM && HAVE_CLK && ARM && MMU
+ select DRM_KMS_HELPER
+ select FB_IOMEM_HELPERS if DRM_FBDEV_EMULATION
+ help
+ Support the "LCD" controllers found on the Marvell Armada 510
+ devices. There are two controllers on the device, each controller
+ supports graphics and video overlays.
+
+ This driver provides no built-in acceleration; acceleration is
+ performed by other IP found on the SoC. This driver provides
+ kernel mode setting and buffer management to userspace.
diff --git a/drivers/gpu/drm/armada/Makefile b/drivers/gpu/drm/armada/Makefile
new file mode 100644
index 0000000000..dc75a7db9e
--- /dev/null
+++ b/drivers/gpu/drm/armada/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+armada-y := armada_crtc.o armada_drv.o armada_fb.o \
+ armada_gem.o armada_overlay.o armada_plane.o armada_trace.o
+armada-y += armada_510.o
+armada-$(CONFIG_DEBUG_FS) += armada_debugfs.o
+armada-$(CONFIG_DRM_FBDEV_EMULATION) += armada_fbdev.o
+
+obj-$(CONFIG_DRM_ARMADA) := armada.o
diff --git a/drivers/gpu/drm/armada/armada_510.c b/drivers/gpu/drm/armada/armada_510.c
new file mode 100644
index 0000000000..93cd7e1a08
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_510.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ *
+ * Armada 510 (aka Dove) variant support
+ */
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <drm/drm_probe_helper.h>
+#include "armada_crtc.h"
+#include "armada_drm.h"
+#include "armada_hw.h"
+
+struct armada510_variant_data {
+ struct clk *clks[4];
+ struct clk *sel_clk;
+};
+
+static int armada510_crtc_init(struct armada_crtc *dcrtc, struct device *dev)
+{
+ struct armada510_variant_data *v;
+ struct clk *clk;
+ int idx;
+
+ v = devm_kzalloc(dev, sizeof(*v), GFP_KERNEL);
+ if (!v)
+ return -ENOMEM;
+
+ dcrtc->variant_data = v;
+
+ if (dev->of_node) {
+ struct property *prop;
+ const char *s;
+
+ of_property_for_each_string(dev->of_node, "clock-names", prop,
+ s) {
+ if (!strcmp(s, "ext_ref_clk0"))
+ idx = 0;
+ else if (!strcmp(s, "ext_ref_clk1"))
+ idx = 1;
+ else if (!strcmp(s, "plldivider"))
+ idx = 2;
+ else if (!strcmp(s, "axibus"))
+ idx = 3;
+ else
+ continue;
+
+ clk = devm_clk_get(dev, s);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk) == -ENOENT ? -EPROBE_DEFER :
+ PTR_ERR(clk);
+ v->clks[idx] = clk;
+ }
+ } else {
+ clk = devm_clk_get(dev, "ext_ref_clk1");
+ if (IS_ERR(clk))
+ return PTR_ERR(clk) == -ENOENT ? -EPROBE_DEFER :
+ PTR_ERR(clk);
+
+ v->clks[1] = clk;
+ }
+
+ /*
+ * Lower the watermark so to eliminate jitter at higher bandwidths.
+ * Disable SRAM read wait state to avoid system hang with external
+ * clock.
+ */
+ armada_updatel(CFG_DMA_WM(0x20), CFG_SRAM_WAIT | CFG_DMA_WM_MASK,
+ dcrtc->base + LCD_CFG_RDREG4F);
+
+ /* Initialise SPU register */
+ writel_relaxed(ADV_HWC32ENABLE | ADV_HWC32ARGB | ADV_HWC32BLEND,
+ dcrtc->base + LCD_SPU_ADV_REG);
+
+ return 0;
+}
+
+static const u32 armada510_clk_sels[] = {
+ SCLK_510_EXTCLK0,
+ SCLK_510_EXTCLK1,
+ SCLK_510_PLL,
+ SCLK_510_AXI,
+};
+
+static const struct armada_clocking_params armada510_clocking = {
+ /* HDMI requires -0.6%..+0.5% */
+ .permillage_min = 994,
+ .permillage_max = 1005,
+ .settable = BIT(0) | BIT(1),
+ .div_max = SCLK_510_INT_DIV_MASK,
+};
+
+/*
+ * Armada510 specific SCLK register selection.
+ * This gets called with sclk = NULL to test whether the mode is
+ * supportable, and again with sclk != NULL to set the clocks up for
+ * that. The former can return an error, but the latter is expected
+ * not to.
+ */
+static int armada510_crtc_compute_clock(struct armada_crtc *dcrtc,
+ const struct drm_display_mode *mode, uint32_t *sclk)
+{
+ struct armada510_variant_data *v = dcrtc->variant_data;
+ unsigned long desired_khz = mode->crtc_clock;
+ struct armada_clk_result res;
+ int ret, idx;
+
+ idx = armada_crtc_select_clock(dcrtc, &res, &armada510_clocking,
+ v->clks, ARRAY_SIZE(v->clks),
+ desired_khz);
+ if (idx < 0)
+ return idx;
+
+ ret = clk_prepare_enable(res.clk);
+ if (ret)
+ return ret;
+
+ if (sclk) {
+ clk_set_rate(res.clk, res.desired_clk_hz);
+
+ *sclk = res.div | armada510_clk_sels[idx];
+
+ /* We are now using this clock */
+ v->sel_clk = res.clk;
+ swap(dcrtc->clk, res.clk);
+ }
+
+ clk_disable_unprepare(res.clk);
+
+ return 0;
+}
+
+static void armada510_crtc_disable(struct armada_crtc *dcrtc)
+{
+ if (dcrtc->clk) {
+ clk_disable_unprepare(dcrtc->clk);
+ dcrtc->clk = NULL;
+ }
+}
+
+static void armada510_crtc_enable(struct armada_crtc *dcrtc,
+ const struct drm_display_mode *mode)
+{
+ struct armada510_variant_data *v = dcrtc->variant_data;
+
+ if (!dcrtc->clk && v->sel_clk) {
+ if (!WARN_ON(clk_prepare_enable(v->sel_clk)))
+ dcrtc->clk = v->sel_clk;
+ }
+}
+
+const struct armada_variant armada510_ops = {
+ .has_spu_adv_reg = true,
+ .init = armada510_crtc_init,
+ .compute_clock = armada510_crtc_compute_clock,
+ .disable = armada510_crtc_disable,
+ .enable = armada510_crtc_enable,
+};
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
new file mode 100644
index 0000000000..15dd667aa2
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -0,0 +1,1105 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ * Rewritten from the dovefb driver, and Armada510 manuals.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "armada_crtc.h"
+#include "armada_drm.h"
+#include "armada_fb.h"
+#include "armada_gem.h"
+#include "armada_hw.h"
+#include "armada_plane.h"
+#include "armada_trace.h"
+
+/*
+ * A note about interlacing. Let's consider HDMI 1920x1080i.
+ * The timing parameters we have from X are:
+ * Hact HsyA HsyI Htot Vact VsyA VsyI Vtot
+ * 1920 2448 2492 2640 1080 1084 1094 1125
+ * Which get translated to:
+ * Hact HsyA HsyI Htot Vact VsyA VsyI Vtot
+ * 1920 2448 2492 2640 540 542 547 562
+ *
+ * This is how it is defined by CEA-861-D - line and pixel numbers are
+ * referenced to the rising edge of VSYNC and HSYNC. Total clocks per
+ * line: 2640. The odd frame, the first active line is at line 21, and
+ * the even frame, the first active line is 584.
+ *
+ * LN: 560 561 562 563 567 568 569
+ * DE: ~~~|____________________________//__________________________
+ * HSYNC: ____|~|_____|~|_____|~|_____|~|_//__|~|_____|~|_____|~|_____
+ * VSYNC: _________________________|~~~~~~//~~~~~~~~~~~~~~~|__________
+ * 22 blanking lines. VSYNC at 1320 (referenced to the HSYNC rising edge).
+ *
+ * LN: 1123 1124 1125 1 5 6 7
+ * DE: ~~~|____________________________//__________________________
+ * HSYNC: ____|~|_____|~|_____|~|_____|~|_//__|~|_____|~|_____|~|_____
+ * VSYNC: ____________________|~~~~~~~~~~~//~~~~~~~~~~|_______________
+ * 23 blanking lines
+ *
+ * The Armada LCD Controller line and pixel numbers are, like X timings,
+ * referenced to the top left of the active frame.
+ *
+ * So, translating these to our LCD controller:
+ * Odd frame, 563 total lines, VSYNC at line 543-548, pixel 1128.
+ * Even frame, 562 total lines, VSYNC at line 542-547, pixel 2448.
+ * Note: Vsync front porch remains constant!
+ *
+ * if (odd_frame) {
+ * vtotal = mode->crtc_vtotal + 1;
+ * vbackporch = mode->crtc_vsync_start - mode->crtc_vdisplay + 1;
+ * vhorizpos = mode->crtc_hsync_start - mode->crtc_htotal / 2
+ * } else {
+ * vtotal = mode->crtc_vtotal;
+ * vbackporch = mode->crtc_vsync_start - mode->crtc_vdisplay;
+ * vhorizpos = mode->crtc_hsync_start;
+ * }
+ * vfrontporch = mode->crtc_vtotal - mode->crtc_vsync_end;
+ *
+ * So, we need to reprogram these registers on each vsync event:
+ * LCD_SPU_V_PORCH, LCD_SPU_ADV_REG, LCD_SPUT_V_H_TOTAL
+ *
+ * Note: we do not use the frame done interrupts because these appear
+ * to happen too early, and lead to jitter on the display (presumably
+ * they occur at the end of the last active line, before the vsync back
+ * porch, which we're reprogramming.)
+ */
+
+void
+armada_drm_crtc_update_regs(struct armada_crtc *dcrtc, struct armada_regs *regs)
+{
+ while (regs->offset != ~0) {
+ void __iomem *reg = dcrtc->base + regs->offset;
+ uint32_t val;
+
+ val = regs->mask;
+ if (val != 0)
+ val &= readl_relaxed(reg);
+ writel_relaxed(val | regs->val, reg);
+ ++regs;
+ }
+}
+
+static void armada_drm_crtc_update(struct armada_crtc *dcrtc, bool enable)
+{
+ uint32_t dumb_ctrl;
+
+ dumb_ctrl = dcrtc->cfg_dumb_ctrl;
+
+ if (enable)
+ dumb_ctrl |= CFG_DUMB_ENA;
+
+ /*
+ * When the dumb interface isn't in DUMB24_RGB888_0 mode, it might
+ * be using SPI or GPIO. If we set this to DUMB_BLANK, we will
+ * force LCD_D[23:0] to output blank color, overriding the GPIO or
+ * SPI usage. So leave it as-is unless in DUMB24_RGB888_0 mode.
+ */
+ if (!enable && (dumb_ctrl & DUMB_MASK) == DUMB24_RGB888_0) {
+ dumb_ctrl &= ~DUMB_MASK;
+ dumb_ctrl |= DUMB_BLANK;
+ }
+
+ armada_updatel(dumb_ctrl,
+ ~(CFG_INV_CSYNC | CFG_INV_HSYNC | CFG_INV_VSYNC),
+ dcrtc->base + LCD_SPU_DUMB_CTRL);
+}
+
+static void armada_drm_crtc_queue_state_event(struct drm_crtc *crtc)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ struct drm_pending_vblank_event *event;
+
+ /* If we have an event, we need vblank events enabled */
+ event = xchg(&crtc->state->event, NULL);
+ if (event) {
+ WARN_ON(drm_crtc_vblank_get(crtc) != 0);
+ dcrtc->event = event;
+ }
+}
+
+static void armada_drm_update_gamma(struct drm_crtc *crtc)
+{
+ struct drm_property_blob *blob = crtc->state->gamma_lut;
+ void __iomem *base = drm_to_armada_crtc(crtc)->base;
+ int i;
+
+ if (blob) {
+ struct drm_color_lut *lut = blob->data;
+
+ armada_updatel(CFG_CSB_256x8, CFG_CSB_256x8 | CFG_PDWN256x8,
+ base + LCD_SPU_SRAM_PARA1);
+
+ for (i = 0; i < 256; i++) {
+ writel_relaxed(drm_color_lut_extract(lut[i].red, 8),
+ base + LCD_SPU_SRAM_WRDAT);
+ writel_relaxed(i | SRAM_WRITE | SRAM_GAMMA_YR,
+ base + LCD_SPU_SRAM_CTRL);
+ readl_relaxed(base + LCD_SPU_HWC_OVSA_HPXL_VLN);
+ writel_relaxed(drm_color_lut_extract(lut[i].green, 8),
+ base + LCD_SPU_SRAM_WRDAT);
+ writel_relaxed(i | SRAM_WRITE | SRAM_GAMMA_UG,
+ base + LCD_SPU_SRAM_CTRL);
+ readl_relaxed(base + LCD_SPU_HWC_OVSA_HPXL_VLN);
+ writel_relaxed(drm_color_lut_extract(lut[i].blue, 8),
+ base + LCD_SPU_SRAM_WRDAT);
+ writel_relaxed(i | SRAM_WRITE | SRAM_GAMMA_VB,
+ base + LCD_SPU_SRAM_CTRL);
+ readl_relaxed(base + LCD_SPU_HWC_OVSA_HPXL_VLN);
+ }
+ armada_updatel(CFG_GAMMA_ENA, CFG_GAMMA_ENA,
+ base + LCD_SPU_DMA_CTRL0);
+ } else {
+ armada_updatel(0, CFG_GAMMA_ENA, base + LCD_SPU_DMA_CTRL0);
+ armada_updatel(CFG_PDWN256x8, CFG_CSB_256x8 | CFG_PDWN256x8,
+ base + LCD_SPU_SRAM_PARA1);
+ }
+}
+
+static enum drm_mode_status armada_drm_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+
+ if (mode->vscan > 1)
+ return MODE_NO_VSCAN;
+
+ if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+ return MODE_NO_DBLESCAN;
+
+ if (mode->flags & DRM_MODE_FLAG_HSKEW)
+ return MODE_H_ILLEGAL;
+
+ /* We can't do interlaced modes if we don't have the SPU_ADV_REG */
+ if (!dcrtc->variant->has_spu_adv_reg &&
+ mode->flags & DRM_MODE_FLAG_INTERLACE)
+ return MODE_NO_INTERLACE;
+
+ if (mode->flags & (DRM_MODE_FLAG_BCAST | DRM_MODE_FLAG_PIXMUX |
+ DRM_MODE_FLAG_CLKDIV2))
+ return MODE_BAD;
+
+ return MODE_OK;
+}
+
+/* The mode_config.mutex will be held for this call */
+static bool armada_drm_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode, struct drm_display_mode *adj)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ int ret;
+
+ /*
+ * Set CRTC modesetting parameters for the adjusted mode. This is
+ * applied after the connectors, bridges, and encoders have fixed up
+ * this mode, as described above drm_atomic_helper_check_modeset().
+ */
+ drm_mode_set_crtcinfo(adj, CRTC_INTERLACE_HALVE_V);
+
+ /*
+ * Validate the adjusted mode in case an encoder/bridge has set
+ * something we don't support.
+ */
+ if (armada_drm_crtc_mode_valid(crtc, adj) != MODE_OK)
+ return false;
+
+ /* Check whether the display mode is possible */
+ ret = dcrtc->variant->compute_clock(dcrtc, adj, NULL);
+ if (ret)
+ return false;
+
+ return true;
+}
+
+/* These are locked by dev->vbl_lock */
+static void armada_drm_crtc_disable_irq(struct armada_crtc *dcrtc, u32 mask)
+{
+ if (dcrtc->irq_ena & mask) {
+ dcrtc->irq_ena &= ~mask;
+ writel(dcrtc->irq_ena, dcrtc->base + LCD_SPU_IRQ_ENA);
+ }
+}
+
+static void armada_drm_crtc_enable_irq(struct armada_crtc *dcrtc, u32 mask)
+{
+ if ((dcrtc->irq_ena & mask) != mask) {
+ dcrtc->irq_ena |= mask;
+ writel(dcrtc->irq_ena, dcrtc->base + LCD_SPU_IRQ_ENA);
+ if (readl_relaxed(dcrtc->base + LCD_SPU_IRQ_ISR) & mask)
+ writel(0, dcrtc->base + LCD_SPU_IRQ_ISR);
+ }
+}
+
+static void armada_drm_crtc_irq(struct armada_crtc *dcrtc, u32 stat)
+{
+ struct drm_pending_vblank_event *event;
+ void __iomem *base = dcrtc->base;
+
+ if (stat & DMA_FF_UNDERFLOW)
+ DRM_ERROR("video underflow on crtc %u\n", dcrtc->num);
+ if (stat & GRA_FF_UNDERFLOW)
+ DRM_ERROR("graphics underflow on crtc %u\n", dcrtc->num);
+
+ if (stat & VSYNC_IRQ)
+ drm_crtc_handle_vblank(&dcrtc->crtc);
+
+ spin_lock(&dcrtc->irq_lock);
+ if (stat & GRA_FRAME_IRQ && dcrtc->interlaced) {
+ int i = stat & GRA_FRAME_IRQ0 ? 0 : 1;
+ uint32_t val;
+
+ writel_relaxed(dcrtc->v[i].spu_v_porch, base + LCD_SPU_V_PORCH);
+ writel_relaxed(dcrtc->v[i].spu_v_h_total,
+ base + LCD_SPUT_V_H_TOTAL);
+
+ val = readl_relaxed(base + LCD_SPU_ADV_REG);
+ val &= ~(ADV_VSYNC_L_OFF | ADV_VSYNC_H_OFF | ADV_VSYNCOFFEN);
+ val |= dcrtc->v[i].spu_adv_reg;
+ writel_relaxed(val, base + LCD_SPU_ADV_REG);
+ }
+
+ if (stat & dcrtc->irq_ena & DUMB_FRAMEDONE) {
+ if (dcrtc->update_pending) {
+ armada_drm_crtc_update_regs(dcrtc, dcrtc->regs);
+ dcrtc->update_pending = false;
+ }
+ if (dcrtc->cursor_update) {
+ writel_relaxed(dcrtc->cursor_hw_pos,
+ base + LCD_SPU_HWC_OVSA_HPXL_VLN);
+ writel_relaxed(dcrtc->cursor_hw_sz,
+ base + LCD_SPU_HWC_HPXL_VLN);
+ armada_updatel(CFG_HWC_ENA,
+ CFG_HWC_ENA | CFG_HWC_1BITMOD |
+ CFG_HWC_1BITENA,
+ base + LCD_SPU_DMA_CTRL0);
+ dcrtc->cursor_update = false;
+ }
+ armada_drm_crtc_disable_irq(dcrtc, DUMB_FRAMEDONE_ENA);
+ }
+ spin_unlock(&dcrtc->irq_lock);
+
+ if (stat & VSYNC_IRQ && !dcrtc->update_pending) {
+ event = xchg(&dcrtc->event, NULL);
+ if (event) {
+ spin_lock(&dcrtc->crtc.dev->event_lock);
+ drm_crtc_send_vblank_event(&dcrtc->crtc, event);
+ spin_unlock(&dcrtc->crtc.dev->event_lock);
+ drm_crtc_vblank_put(&dcrtc->crtc);
+ }
+ }
+}
+
+static irqreturn_t armada_drm_irq(int irq, void *arg)
+{
+ struct armada_crtc *dcrtc = arg;
+ u32 v, stat = readl_relaxed(dcrtc->base + LCD_SPU_IRQ_ISR);
+
+ /*
+ * Reading the ISR appears to clear bits provided CLEAN_SPU_IRQ_ISR
+ * is set. Writing has some other effect to acknowledge the IRQ -
+ * without this, we only get a single IRQ.
+ */
+ writel_relaxed(0, dcrtc->base + LCD_SPU_IRQ_ISR);
+
+ trace_armada_drm_irq(&dcrtc->crtc, stat);
+
+ /* Mask out those interrupts we haven't enabled */
+ v = stat & dcrtc->irq_ena;
+
+ if (v & (VSYNC_IRQ|GRA_FRAME_IRQ|DUMB_FRAMEDONE)) {
+ armada_drm_crtc_irq(dcrtc, stat);
+ return IRQ_HANDLED;
+ }
+ return IRQ_NONE;
+}
+
+/* The mode_config.mutex will be held for this call */
+static void armada_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+ struct drm_display_mode *adj = &crtc->state->adjusted_mode;
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ struct armada_regs regs[17];
+ uint32_t lm, rm, tm, bm, val, sclk;
+ unsigned long flags;
+ unsigned i;
+ bool interlaced = !!(adj->flags & DRM_MODE_FLAG_INTERLACE);
+
+ i = 0;
+ rm = adj->crtc_hsync_start - adj->crtc_hdisplay;
+ lm = adj->crtc_htotal - adj->crtc_hsync_end;
+ bm = adj->crtc_vsync_start - adj->crtc_vdisplay;
+ tm = adj->crtc_vtotal - adj->crtc_vsync_end;
+
+ DRM_DEBUG_KMS("[CRTC:%d:%s] mode " DRM_MODE_FMT "\n",
+ crtc->base.id, crtc->name, DRM_MODE_ARG(adj));
+ DRM_DEBUG_KMS("lm %d rm %d tm %d bm %d\n", lm, rm, tm, bm);
+
+ /* Now compute the divider for real */
+ dcrtc->variant->compute_clock(dcrtc, adj, &sclk);
+
+ armada_reg_queue_set(regs, i, sclk, LCD_CFG_SCLK_DIV);
+
+ spin_lock_irqsave(&dcrtc->irq_lock, flags);
+
+ dcrtc->interlaced = interlaced;
+ /* Even interlaced/progressive frame */
+ dcrtc->v[1].spu_v_h_total = adj->crtc_vtotal << 16 |
+ adj->crtc_htotal;
+ dcrtc->v[1].spu_v_porch = tm << 16 | bm;
+ val = adj->crtc_hsync_start;
+ dcrtc->v[1].spu_adv_reg = val << 20 | val | ADV_VSYNCOFFEN;
+
+ if (interlaced) {
+ /* Odd interlaced frame */
+ val -= adj->crtc_htotal / 2;
+ dcrtc->v[0].spu_adv_reg = val << 20 | val | ADV_VSYNCOFFEN;
+ dcrtc->v[0].spu_v_h_total = dcrtc->v[1].spu_v_h_total +
+ (1 << 16);
+ dcrtc->v[0].spu_v_porch = dcrtc->v[1].spu_v_porch + 1;
+ } else {
+ dcrtc->v[0] = dcrtc->v[1];
+ }
+
+ val = adj->crtc_vdisplay << 16 | adj->crtc_hdisplay;
+
+ armada_reg_queue_set(regs, i, val, LCD_SPU_V_H_ACTIVE);
+ armada_reg_queue_set(regs, i, (lm << 16) | rm, LCD_SPU_H_PORCH);
+ armada_reg_queue_set(regs, i, dcrtc->v[0].spu_v_porch, LCD_SPU_V_PORCH);
+ armada_reg_queue_set(regs, i, dcrtc->v[0].spu_v_h_total,
+ LCD_SPUT_V_H_TOTAL);
+
+ if (dcrtc->variant->has_spu_adv_reg)
+ armada_reg_queue_mod(regs, i, dcrtc->v[0].spu_adv_reg,
+ ADV_VSYNC_L_OFF | ADV_VSYNC_H_OFF |
+ ADV_VSYNCOFFEN, LCD_SPU_ADV_REG);
+
+ val = adj->flags & DRM_MODE_FLAG_NVSYNC ? CFG_VSYNC_INV : 0;
+ armada_reg_queue_mod(regs, i, val, CFG_VSYNC_INV, LCD_SPU_DMA_CTRL1);
+
+ /*
+ * The documentation doesn't indicate what the normal state of
+ * the sync signals are. Sebastian Hesselbart kindly probed
+ * these signals on his board to determine their state.
+ *
+ * The non-inverted state of the sync signals is active high.
+ * Setting these bits makes the appropriate signal active low.
+ */
+ val = 0;
+ if (adj->flags & DRM_MODE_FLAG_NCSYNC)
+ val |= CFG_INV_CSYNC;
+ if (adj->flags & DRM_MODE_FLAG_NHSYNC)
+ val |= CFG_INV_HSYNC;
+ if (adj->flags & DRM_MODE_FLAG_NVSYNC)
+ val |= CFG_INV_VSYNC;
+ armada_reg_queue_mod(regs, i, val, CFG_INV_CSYNC | CFG_INV_HSYNC |
+ CFG_INV_VSYNC, LCD_SPU_DUMB_CTRL);
+ armada_reg_queue_end(regs, i);
+
+ armada_drm_crtc_update_regs(dcrtc, regs);
+ spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
+}
+
+static int armada_drm_crtc_atomic_check(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+ crtc);
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+ if (crtc_state->gamma_lut && drm_color_lut_size(crtc_state->gamma_lut) != 256)
+ return -EINVAL;
+
+ if (crtc_state->color_mgmt_changed)
+ crtc_state->planes_changed = true;
+
+ return 0;
+}
+
+static void armada_drm_crtc_atomic_begin(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+ crtc);
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+ if (crtc_state->color_mgmt_changed)
+ armada_drm_update_gamma(crtc);
+
+ dcrtc->regs_idx = 0;
+ dcrtc->regs = dcrtc->atomic_regs;
+}
+
+static void armada_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+ crtc);
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+ armada_reg_queue_end(dcrtc->regs, dcrtc->regs_idx);
+
+ /*
+ * If we aren't doing a full modeset, then we need to queue
+ * the event here.
+ */
+ if (!drm_atomic_crtc_needs_modeset(crtc_state)) {
+ dcrtc->update_pending = true;
+ armada_drm_crtc_queue_state_event(crtc);
+ spin_lock_irq(&dcrtc->irq_lock);
+ armada_drm_crtc_enable_irq(dcrtc, DUMB_FRAMEDONE_ENA);
+ spin_unlock_irq(&dcrtc->irq_lock);
+ } else {
+ spin_lock_irq(&dcrtc->irq_lock);
+ armada_drm_crtc_update_regs(dcrtc, dcrtc->regs);
+ spin_unlock_irq(&dcrtc->irq_lock);
+ }
+}
+
+static void armada_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
+ crtc);
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ struct drm_pending_vblank_event *event;
+
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+ if (old_state->adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
+ drm_crtc_vblank_put(crtc);
+
+ drm_crtc_vblank_off(crtc);
+ armada_drm_crtc_update(dcrtc, false);
+
+ if (!crtc->state->active) {
+ /*
+ * This modeset will be leaving the CRTC disabled, so
+ * call the backend to disable upstream clocks etc.
+ */
+ if (dcrtc->variant->disable)
+ dcrtc->variant->disable(dcrtc);
+
+ /*
+ * We will not receive any further vblank events.
+ * Send the flip_done event manually.
+ */
+ event = crtc->state->event;
+ crtc->state->event = NULL;
+ if (event) {
+ spin_lock_irq(&crtc->dev->event_lock);
+ drm_crtc_send_vblank_event(crtc, event);
+ spin_unlock_irq(&crtc->dev->event_lock);
+ }
+ }
+}
+
+static void armada_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
+ crtc);
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+
+ DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+
+ if (!old_state->active) {
+ /*
+ * This modeset is enabling the CRTC after it having
+ * been disabled. Reverse the call to ->disable in
+ * the atomic_disable().
+ */
+ if (dcrtc->variant->enable)
+ dcrtc->variant->enable(dcrtc, &crtc->state->adjusted_mode);
+ }
+ armada_drm_crtc_update(dcrtc, true);
+ drm_crtc_vblank_on(crtc);
+
+ if (crtc->state->adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
+ WARN_ON(drm_crtc_vblank_get(crtc));
+
+ armada_drm_crtc_queue_state_event(crtc);
+}
+
+static const struct drm_crtc_helper_funcs armada_crtc_helper_funcs = {
+ .mode_valid = armada_drm_crtc_mode_valid,
+ .mode_fixup = armada_drm_crtc_mode_fixup,
+ .mode_set_nofb = armada_drm_crtc_mode_set_nofb,
+ .atomic_check = armada_drm_crtc_atomic_check,
+ .atomic_begin = armada_drm_crtc_atomic_begin,
+ .atomic_flush = armada_drm_crtc_atomic_flush,
+ .atomic_disable = armada_drm_crtc_atomic_disable,
+ .atomic_enable = armada_drm_crtc_atomic_enable,
+};
+
+static void armada_load_cursor_argb(void __iomem *base, uint32_t *pix,
+ unsigned stride, unsigned width, unsigned height)
+{
+ uint32_t addr;
+ unsigned y;
+
+ addr = SRAM_HWC32_RAM1;
+ for (y = 0; y < height; y++) {
+ uint32_t *p = &pix[y * stride];
+ unsigned x;
+
+ for (x = 0; x < width; x++, p++) {
+ uint32_t val = *p;
+
+ /*
+ * In "ARGB888" (HWC32) mode, writing to the SRAM
+ * requires these bits to contain:
+ * 31:24 = alpha 23:16 = blue 15:8 = green 7:0 = red
+ * So, it's actually ABGR8888. This is independent
+ * of the SWAPRB bits in DMA control register 0.
+ */
+ val = (val & 0xff00ff00) |
+ (val & 0x000000ff) << 16 |
+ (val & 0x00ff0000) >> 16;
+
+ writel_relaxed(val,
+ base + LCD_SPU_SRAM_WRDAT);
+ writel_relaxed(addr | SRAM_WRITE,
+ base + LCD_SPU_SRAM_CTRL);
+ readl_relaxed(base + LCD_SPU_HWC_OVSA_HPXL_VLN);
+ addr += 1;
+ if ((addr & 0x00ff) == 0)
+ addr += 0xf00;
+ if ((addr & 0x30ff) == 0)
+ addr = SRAM_HWC32_RAM2;
+ }
+ }
+}
+
+static void armada_drm_crtc_cursor_tran(void __iomem *base)
+{
+ unsigned addr;
+
+ for (addr = 0; addr < 256; addr++) {
+ /* write the default value */
+ writel_relaxed(0x55555555, base + LCD_SPU_SRAM_WRDAT);
+ writel_relaxed(addr | SRAM_WRITE | SRAM_HWC32_TRAN,
+ base + LCD_SPU_SRAM_CTRL);
+ }
+}
+
+static int armada_drm_crtc_cursor_update(struct armada_crtc *dcrtc, bool reload)
+{
+ uint32_t xoff, xscr, w = dcrtc->cursor_w, s;
+ uint32_t yoff, yscr, h = dcrtc->cursor_h;
+ uint32_t para1;
+
+ /*
+ * Calculate the visible width and height of the cursor,
+ * screen position, and the position in the cursor bitmap.
+ */
+ if (dcrtc->cursor_x < 0) {
+ xoff = -dcrtc->cursor_x;
+ xscr = 0;
+ w -= min(xoff, w);
+ } else if (dcrtc->cursor_x + w > dcrtc->crtc.mode.hdisplay) {
+ xoff = 0;
+ xscr = dcrtc->cursor_x;
+ w = max_t(int, dcrtc->crtc.mode.hdisplay - dcrtc->cursor_x, 0);
+ } else {
+ xoff = 0;
+ xscr = dcrtc->cursor_x;
+ }
+
+ if (dcrtc->cursor_y < 0) {
+ yoff = -dcrtc->cursor_y;
+ yscr = 0;
+ h -= min(yoff, h);
+ } else if (dcrtc->cursor_y + h > dcrtc->crtc.mode.vdisplay) {
+ yoff = 0;
+ yscr = dcrtc->cursor_y;
+ h = max_t(int, dcrtc->crtc.mode.vdisplay - dcrtc->cursor_y, 0);
+ } else {
+ yoff = 0;
+ yscr = dcrtc->cursor_y;
+ }
+
+ /* On interlaced modes, the vertical cursor size must be halved */
+ s = dcrtc->cursor_w;
+ if (dcrtc->interlaced) {
+ s *= 2;
+ yscr /= 2;
+ h /= 2;
+ }
+
+ if (!dcrtc->cursor_obj || !h || !w) {
+ spin_lock_irq(&dcrtc->irq_lock);
+ dcrtc->cursor_update = false;
+ armada_updatel(0, CFG_HWC_ENA, dcrtc->base + LCD_SPU_DMA_CTRL0);
+ spin_unlock_irq(&dcrtc->irq_lock);
+ return 0;
+ }
+
+ spin_lock_irq(&dcrtc->irq_lock);
+ para1 = readl_relaxed(dcrtc->base + LCD_SPU_SRAM_PARA1);
+ armada_updatel(CFG_CSB_256x32, CFG_CSB_256x32 | CFG_PDWN256x32,
+ dcrtc->base + LCD_SPU_SRAM_PARA1);
+ spin_unlock_irq(&dcrtc->irq_lock);
+
+ /*
+ * Initialize the transparency if the SRAM was powered down.
+ * We must also reload the cursor data as well.
+ */
+ if (!(para1 & CFG_CSB_256x32)) {
+ armada_drm_crtc_cursor_tran(dcrtc->base);
+ reload = true;
+ }
+
+ if (dcrtc->cursor_hw_sz != (h << 16 | w)) {
+ spin_lock_irq(&dcrtc->irq_lock);
+ dcrtc->cursor_update = false;
+ armada_updatel(0, CFG_HWC_ENA, dcrtc->base + LCD_SPU_DMA_CTRL0);
+ spin_unlock_irq(&dcrtc->irq_lock);
+ reload = true;
+ }
+ if (reload) {
+ struct armada_gem_object *obj = dcrtc->cursor_obj;
+ uint32_t *pix;
+ /* Set the top-left corner of the cursor image */
+ pix = obj->addr;
+ pix += yoff * s + xoff;
+ armada_load_cursor_argb(dcrtc->base, pix, s, w, h);
+ }
+
+ /* Reload the cursor position, size and enable in the IRQ handler */
+ spin_lock_irq(&dcrtc->irq_lock);
+ dcrtc->cursor_hw_pos = yscr << 16 | xscr;
+ dcrtc->cursor_hw_sz = h << 16 | w;
+ dcrtc->cursor_update = true;
+ armada_drm_crtc_enable_irq(dcrtc, DUMB_FRAMEDONE_ENA);
+ spin_unlock_irq(&dcrtc->irq_lock);
+
+ return 0;
+}
+
+static void cursor_update(void *data)
+{
+ armada_drm_crtc_cursor_update(data, true);
+}
+
+static int armada_drm_crtc_cursor_set(struct drm_crtc *crtc,
+ struct drm_file *file, uint32_t handle, uint32_t w, uint32_t h)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ struct armada_gem_object *obj = NULL;
+ int ret;
+
+ /* If no cursor support, replicate drm's return value */
+ if (!dcrtc->variant->has_spu_adv_reg)
+ return -ENXIO;
+
+ if (handle && w > 0 && h > 0) {
+ /* maximum size is 64x32 or 32x64 */
+ if (w > 64 || h > 64 || (w > 32 && h > 32))
+ return -ENOMEM;
+
+ obj = armada_gem_object_lookup(file, handle);
+ if (!obj)
+ return -ENOENT;
+
+ /* Must be a kernel-mapped object */
+ if (!obj->addr) {
+ drm_gem_object_put(&obj->obj);
+ return -EINVAL;
+ }
+
+ if (obj->obj.size < w * h * 4) {
+ DRM_ERROR("buffer is too small\n");
+ drm_gem_object_put(&obj->obj);
+ return -ENOMEM;
+ }
+ }
+
+ if (dcrtc->cursor_obj) {
+ dcrtc->cursor_obj->update = NULL;
+ dcrtc->cursor_obj->update_data = NULL;
+ drm_gem_object_put(&dcrtc->cursor_obj->obj);
+ }
+ dcrtc->cursor_obj = obj;
+ dcrtc->cursor_w = w;
+ dcrtc->cursor_h = h;
+ ret = armada_drm_crtc_cursor_update(dcrtc, true);
+ if (obj) {
+ obj->update_data = dcrtc;
+ obj->update = cursor_update;
+ }
+
+ return ret;
+}
+
+static int armada_drm_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ int ret;
+
+ /* If no cursor support, replicate drm's return value */
+ if (!dcrtc->variant->has_spu_adv_reg)
+ return -EFAULT;
+
+ dcrtc->cursor_x = x;
+ dcrtc->cursor_y = y;
+ ret = armada_drm_crtc_cursor_update(dcrtc, false);
+
+ return ret;
+}
+
+static void armada_drm_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ struct armada_private *priv = drm_to_armada_dev(crtc->dev);
+
+ if (dcrtc->cursor_obj)
+ drm_gem_object_put(&dcrtc->cursor_obj->obj);
+
+ priv->dcrtc[dcrtc->num] = NULL;
+ drm_crtc_cleanup(&dcrtc->crtc);
+
+ if (dcrtc->variant->disable)
+ dcrtc->variant->disable(dcrtc);
+
+ writel_relaxed(0, dcrtc->base + LCD_SPU_IRQ_ENA);
+
+ of_node_put(dcrtc->crtc.port);
+
+ kfree(dcrtc);
+}
+
+static int armada_drm_crtc_late_register(struct drm_crtc *crtc)
+{
+ if (IS_ENABLED(CONFIG_DEBUG_FS))
+ armada_drm_crtc_debugfs_init(drm_to_armada_crtc(crtc));
+
+ return 0;
+}
+
+/* These are called under the vbl_lock. */
+static int armada_drm_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&dcrtc->irq_lock, flags);
+ armada_drm_crtc_enable_irq(dcrtc, VSYNC_IRQ_ENA);
+ spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
+ return 0;
+}
+
+static void armada_drm_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+ struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&dcrtc->irq_lock, flags);
+ armada_drm_crtc_disable_irq(dcrtc, VSYNC_IRQ_ENA);
+ spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
+}
+
+static const struct drm_crtc_funcs armada_crtc_funcs = {
+ .reset = drm_atomic_helper_crtc_reset,
+ .cursor_set = armada_drm_crtc_cursor_set,
+ .cursor_move = armada_drm_crtc_cursor_move,
+ .destroy = armada_drm_crtc_destroy,
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+ .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+ .late_register = armada_drm_crtc_late_register,
+ .enable_vblank = armada_drm_crtc_enable_vblank,
+ .disable_vblank = armada_drm_crtc_disable_vblank,
+};
+
+int armada_crtc_select_clock(struct armada_crtc *dcrtc,
+ struct armada_clk_result *res,
+ const struct armada_clocking_params *params,
+ struct clk *clks[], size_t num_clks,
+ unsigned long desired_khz)
+{
+ unsigned long desired_hz = desired_khz * 1000;
+ unsigned long desired_clk_hz; // requested clk input
+ unsigned long real_clk_hz; // actual clk input
+ unsigned long real_hz; // actual pixel clk
+ unsigned long permillage;
+ struct clk *clk;
+ u32 div;
+ int i;
+
+ DRM_DEBUG_KMS("[CRTC:%u:%s] desired clock=%luHz\n",
+ dcrtc->crtc.base.id, dcrtc->crtc.name, desired_hz);
+
+ for (i = 0; i < num_clks; i++) {
+ clk = clks[i];
+ if (!clk)
+ continue;
+
+ if (params->settable & BIT(i)) {
+ real_clk_hz = clk_round_rate(clk, desired_hz);
+ desired_clk_hz = desired_hz;
+ } else {
+ real_clk_hz = clk_get_rate(clk);
+ desired_clk_hz = real_clk_hz;
+ }
+
+ /* If the clock can do exactly the desired rate, we're done */
+ if (real_clk_hz == desired_hz) {
+ real_hz = real_clk_hz;
+ div = 1;
+ goto found;
+ }
+
+ /* Calculate the divider - if invalid, we can't do this rate */
+ div = DIV_ROUND_CLOSEST(real_clk_hz, desired_hz);
+ if (div == 0 || div > params->div_max)
+ continue;
+
+ /* Calculate the actual rate - HDMI requires -0.6%..+0.5% */
+ real_hz = DIV_ROUND_CLOSEST(real_clk_hz, div);
+
+ DRM_DEBUG_KMS("[CRTC:%u:%s] clk=%u %luHz div=%u real=%luHz\n",
+ dcrtc->crtc.base.id, dcrtc->crtc.name,
+ i, real_clk_hz, div, real_hz);
+
+ /* Avoid repeated division */
+ if (real_hz < desired_hz) {
+ permillage = real_hz / desired_khz;
+ if (permillage < params->permillage_min)
+ continue;
+ } else {
+ permillage = DIV_ROUND_UP(real_hz, desired_khz);
+ if (permillage > params->permillage_max)
+ continue;
+ }
+ goto found;
+ }
+
+ return -ERANGE;
+
+found:
+ DRM_DEBUG_KMS("[CRTC:%u:%s] selected clk=%u %luHz div=%u real=%luHz\n",
+ dcrtc->crtc.base.id, dcrtc->crtc.name,
+ i, real_clk_hz, div, real_hz);
+
+ res->desired_clk_hz = desired_clk_hz;
+ res->clk = clk;
+ res->div = div;
+
+ return i;
+}
+
+static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
+ struct resource *res, int irq, const struct armada_variant *variant,
+ struct device_node *port)
+{
+ struct armada_private *priv = drm_to_armada_dev(drm);
+ struct armada_crtc *dcrtc;
+ struct drm_plane *primary;
+ void __iomem *base;
+ int ret;
+
+ base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ dcrtc = kzalloc(sizeof(*dcrtc), GFP_KERNEL);
+ if (!dcrtc) {
+ DRM_ERROR("failed to allocate Armada crtc\n");
+ return -ENOMEM;
+ }
+
+ if (dev != drm->dev)
+ dev_set_drvdata(dev, dcrtc);
+
+ dcrtc->variant = variant;
+ dcrtc->base = base;
+ dcrtc->num = drm->mode_config.num_crtc;
+ dcrtc->cfg_dumb_ctrl = DUMB24_RGB888_0;
+ dcrtc->spu_iopad_ctrl = CFG_VSCALE_LN_EN | CFG_IOPAD_DUMB24;
+ spin_lock_init(&dcrtc->irq_lock);
+ dcrtc->irq_ena = CLEAN_SPU_IRQ_ISR;
+
+ /* Initialize some registers which we don't otherwise set */
+ writel_relaxed(0x00000001, dcrtc->base + LCD_CFG_SCLK_DIV);
+ writel_relaxed(0x00000000, dcrtc->base + LCD_SPU_BLANKCOLOR);
+ writel_relaxed(dcrtc->spu_iopad_ctrl,
+ dcrtc->base + LCD_SPU_IOPAD_CONTROL);
+ writel_relaxed(0x00000000, dcrtc->base + LCD_SPU_SRAM_PARA0);
+ writel_relaxed(CFG_PDWN256x32 | CFG_PDWN256x24 | CFG_PDWN256x8 |
+ CFG_PDWN32x32 | CFG_PDWN16x66 | CFG_PDWN32x66 |
+ CFG_PDWN64x66, dcrtc->base + LCD_SPU_SRAM_PARA1);
+ writel_relaxed(0x2032ff81, dcrtc->base + LCD_SPU_DMA_CTRL1);
+ writel_relaxed(dcrtc->irq_ena, dcrtc->base + LCD_SPU_IRQ_ENA);
+ readl_relaxed(dcrtc->base + LCD_SPU_IRQ_ISR);
+ writel_relaxed(0, dcrtc->base + LCD_SPU_IRQ_ISR);
+
+ ret = devm_request_irq(dev, irq, armada_drm_irq, 0, "armada_drm_crtc",
+ dcrtc);
+ if (ret < 0)
+ goto err_crtc;
+
+ if (dcrtc->variant->init) {
+ ret = dcrtc->variant->init(dcrtc, dev);
+ if (ret)
+ goto err_crtc;
+ }
+
+ /* Ensure AXI pipeline is enabled */
+ armada_updatel(CFG_ARBFAST_ENA, 0, dcrtc->base + LCD_SPU_DMA_CTRL0);
+
+ priv->dcrtc[dcrtc->num] = dcrtc;
+
+ dcrtc->crtc.port = port;
+
+ primary = kzalloc(sizeof(*primary), GFP_KERNEL);
+ if (!primary) {
+ ret = -ENOMEM;
+ goto err_crtc;
+ }
+
+ ret = armada_drm_primary_plane_init(drm, primary);
+ if (ret) {
+ kfree(primary);
+ goto err_crtc;
+ }
+
+ ret = drm_crtc_init_with_planes(drm, &dcrtc->crtc, primary, NULL,
+ &armada_crtc_funcs, NULL);
+ if (ret)
+ goto err_crtc_init;
+
+ drm_crtc_helper_add(&dcrtc->crtc, &armada_crtc_helper_funcs);
+
+ ret = drm_mode_crtc_set_gamma_size(&dcrtc->crtc, 256);
+ if (ret)
+ return ret;
+
+ drm_crtc_enable_color_mgmt(&dcrtc->crtc, 0, false, 256);
+
+ return armada_overlay_plane_create(drm, 1 << dcrtc->num);
+
+err_crtc_init:
+ primary->funcs->destroy(primary);
+err_crtc:
+ kfree(dcrtc);
+
+ return ret;
+}
+
+static int
+armada_lcd_bind(struct device *dev, struct device *master, void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct drm_device *drm = data;
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ int irq = platform_get_irq(pdev, 0);
+ const struct armada_variant *variant;
+ struct device_node *port = NULL;
+
+ if (irq < 0)
+ return irq;
+
+ if (!dev->of_node) {
+ const struct platform_device_id *id;
+
+ id = platform_get_device_id(pdev);
+ if (!id)
+ return -ENXIO;
+
+ variant = (const struct armada_variant *)id->driver_data;
+ } else {
+ const struct of_device_id *match;
+ struct device_node *np, *parent = dev->of_node;
+
+ match = of_match_device(dev->driver->of_match_table, dev);
+ if (!match)
+ return -ENXIO;
+
+ np = of_get_child_by_name(parent, "ports");
+ if (np)
+ parent = np;
+ port = of_get_child_by_name(parent, "port");
+ of_node_put(np);
+ if (!port) {
+ dev_err(dev, "no port node found in %pOF\n", parent);
+ return -ENXIO;
+ }
+
+ variant = match->data;
+ }
+
+ return armada_drm_crtc_create(drm, dev, res, irq, variant, port);
+}
+
+static void
+armada_lcd_unbind(struct device *dev, struct device *master, void *data)
+{
+ struct armada_crtc *dcrtc = dev_get_drvdata(dev);
+
+ armada_drm_crtc_destroy(&dcrtc->crtc);
+}
+
+static const struct component_ops armada_lcd_ops = {
+ .bind = armada_lcd_bind,
+ .unbind = armada_lcd_unbind,
+};
+
+static int armada_lcd_probe(struct platform_device *pdev)
+{
+ return component_add(&pdev->dev, &armada_lcd_ops);
+}
+
+static int armada_lcd_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &armada_lcd_ops);
+ return 0;
+}
+
+static const struct of_device_id armada_lcd_of_match[] = {
+ {
+ .compatible = "marvell,dove-lcd",
+ .data = &armada510_ops,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, armada_lcd_of_match);
+
+static const struct platform_device_id armada_lcd_platform_ids[] = {
+ {
+ .name = "armada-lcd",
+ .driver_data = (unsigned long)&armada510_ops,
+ }, {
+ .name = "armada-510-lcd",
+ .driver_data = (unsigned long)&armada510_ops,
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, armada_lcd_platform_ids);
+
+struct platform_driver armada_lcd_platform_driver = {
+ .probe = armada_lcd_probe,
+ .remove = armada_lcd_remove,
+ .driver = {
+ .name = "armada-lcd",
+ .owner = THIS_MODULE,
+ .of_match_table = armada_lcd_of_match,
+ },
+ .id_table = armada_lcd_platform_ids,
+};
diff --git a/drivers/gpu/drm/armada/armada_crtc.h b/drivers/gpu/drm/armada/armada_crtc.h
new file mode 100644
index 0000000000..b21267d174
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_crtc.h
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 Russell King
+ */
+#ifndef ARMADA_CRTC_H
+#define ARMADA_CRTC_H
+
+#include <drm/drm_crtc.h>
+
+struct armada_gem_object;
+
+struct armada_regs {
+ uint32_t offset;
+ uint32_t mask;
+ uint32_t val;
+};
+
+#define armada_reg_queue_mod(_r, _i, _v, _m, _o) \
+ do { \
+ struct armada_regs *__reg = _r; \
+ __reg[_i].offset = _o; \
+ __reg[_i].mask = ~(_m); \
+ __reg[_i].val = _v; \
+ _i++; \
+ } while (0)
+
+#define armada_reg_queue_set(_r, _i, _v, _o) \
+ armada_reg_queue_mod(_r, _i, _v, ~0, _o)
+
+#define armada_reg_queue_end(_r, _i) \
+ armada_reg_queue_mod(_r, _i, 0, 0, ~0)
+
+struct armada_crtc;
+struct armada_variant;
+
+struct armada_crtc {
+ struct drm_crtc crtc;
+ const struct armada_variant *variant;
+ void *variant_data;
+ unsigned num;
+ void __iomem *base;
+ struct clk *clk;
+ struct {
+ uint32_t spu_v_h_total;
+ uint32_t spu_v_porch;
+ uint32_t spu_adv_reg;
+ } v[2];
+ bool interlaced;
+ bool cursor_update;
+
+ struct armada_gem_object *cursor_obj;
+ int cursor_x;
+ int cursor_y;
+ uint32_t cursor_hw_pos;
+ uint32_t cursor_hw_sz;
+ uint32_t cursor_w;
+ uint32_t cursor_h;
+
+ uint32_t cfg_dumb_ctrl;
+ uint32_t spu_iopad_ctrl;
+
+ spinlock_t irq_lock;
+ uint32_t irq_ena;
+
+ bool update_pending;
+ struct drm_pending_vblank_event *event;
+ struct armada_regs atomic_regs[32];
+ struct armada_regs *regs;
+ unsigned int regs_idx;
+};
+#define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
+
+void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
+
+struct armada_clocking_params {
+ unsigned long permillage_min;
+ unsigned long permillage_max;
+ u32 settable;
+ u32 div_max;
+};
+
+struct armada_clk_result {
+ unsigned long desired_clk_hz;
+ struct clk *clk;
+ u32 div;
+};
+
+int armada_crtc_select_clock(struct armada_crtc *dcrtc,
+ struct armada_clk_result *res,
+ const struct armada_clocking_params *params,
+ struct clk *clks[], size_t num_clks,
+ unsigned long desired_khz);
+
+extern struct platform_driver armada_lcd_platform_driver;
+
+#endif
diff --git a/drivers/gpu/drm/armada/armada_debugfs.c b/drivers/gpu/drm/armada/armada_debugfs.c
new file mode 100644
index 0000000000..29f4b52e3c
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_debugfs.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ * Rewritten from the dovefb driver, and Armada510 manuals.
+ */
+
+#include <linux/ctype.h>
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include <linux/uaccess.h>
+
+#include <drm/drm_debugfs.h>
+#include <drm/drm_file.h>
+
+#include "armada_crtc.h"
+#include "armada_drm.h"
+
+static int armada_debugfs_gem_linear_show(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct armada_private *priv = drm_to_armada_dev(dev);
+ struct drm_printer p = drm_seq_file_printer(m);
+
+ mutex_lock(&priv->linear_lock);
+ drm_mm_print(&priv->linear, &p);
+ mutex_unlock(&priv->linear_lock);
+
+ return 0;
+}
+
+static int armada_debugfs_crtc_reg_show(struct seq_file *m, void *data)
+{
+ struct armada_crtc *dcrtc = m->private;
+ int i;
+
+ for (i = 0x84; i <= 0x1c4; i += 4) {
+ u32 v = readl_relaxed(dcrtc->base + i);
+ seq_printf(m, "0x%04x: 0x%08x\n", i, v);
+ }
+
+ return 0;
+}
+
+static int armada_debugfs_crtc_reg_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, armada_debugfs_crtc_reg_show,
+ inode->i_private);
+}
+
+static int armada_debugfs_crtc_reg_write(struct file *file,
+ const char __user *ptr, size_t len, loff_t *off)
+{
+ struct armada_crtc *dcrtc;
+ unsigned long reg, mask, val;
+ char buf[32];
+ int ret;
+ u32 v;
+
+ if (*off != 0)
+ return 0;
+
+ if (len > sizeof(buf) - 1)
+ len = sizeof(buf) - 1;
+
+ ret = strncpy_from_user(buf, ptr, len);
+ if (ret < 0)
+ return ret;
+ buf[len] = '\0';
+
+ if (sscanf(buf, "%lx %lx %lx", &reg, &mask, &val) != 3)
+ return -EINVAL;
+ if (reg < 0x84 || reg > 0x1c4 || reg & 3)
+ return -ERANGE;
+
+ dcrtc = ((struct seq_file *)file->private_data)->private;
+ v = readl(dcrtc->base + reg);
+ v &= ~mask;
+ v |= val & mask;
+ writel(v, dcrtc->base + reg);
+
+ return len;
+}
+
+static const struct file_operations armada_debugfs_crtc_reg_fops = {
+ .owner = THIS_MODULE,
+ .open = armada_debugfs_crtc_reg_open,
+ .read = seq_read,
+ .write = armada_debugfs_crtc_reg_write,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc)
+{
+ debugfs_create_file("armada-regs", 0600, dcrtc->crtc.debugfs_entry,
+ dcrtc, &armada_debugfs_crtc_reg_fops);
+}
+
+static struct drm_info_list armada_debugfs_list[] = {
+ { "gem_linear", armada_debugfs_gem_linear_show, 0 },
+};
+#define ARMADA_DEBUGFS_ENTRIES ARRAY_SIZE(armada_debugfs_list)
+
+int armada_drm_debugfs_init(struct drm_minor *minor)
+{
+ drm_debugfs_create_files(armada_debugfs_list, ARMADA_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/armada/armada_drm.h b/drivers/gpu/drm/armada/armada_drm.h
new file mode 100644
index 0000000000..c303e8c7ff
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_drm.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 Russell King
+ */
+#ifndef ARMADA_DRM_H
+#define ARMADA_DRM_H
+
+#include <linux/kfifo.h>
+#include <linux/io.h>
+#include <linux/workqueue.h>
+
+#include <drm/drm_device.h>
+#include <drm/drm_mm.h>
+
+struct armada_crtc;
+struct armada_gem_object;
+struct clk;
+struct drm_display_mode;
+
+static inline void
+armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
+{
+ uint32_t ov, v;
+
+ ov = v = readl_relaxed(ptr);
+ v = (v & ~mask) | val;
+ if (ov != v)
+ writel_relaxed(v, ptr);
+}
+
+static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
+{
+ uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
+
+ /* 88AP510 spec recommends pitch be a multiple of 128 */
+ return ALIGN(pitch, 128);
+}
+
+
+struct armada_private;
+
+struct armada_variant {
+ bool has_spu_adv_reg;
+ int (*init)(struct armada_crtc *, struct device *);
+ int (*compute_clock)(struct armada_crtc *,
+ const struct drm_display_mode *,
+ uint32_t *);
+ void (*disable)(struct armada_crtc *);
+ void (*enable)(struct armada_crtc *, const struct drm_display_mode *);
+};
+
+/* Variant ops */
+extern const struct armada_variant armada510_ops;
+
+struct armada_private {
+ struct drm_device drm;
+ struct armada_crtc *dcrtc[2];
+ struct drm_mm linear; /* protected by linear_lock */
+ struct mutex linear_lock;
+ struct drm_property *colorkey_prop;
+ struct drm_property *colorkey_min_prop;
+ struct drm_property *colorkey_max_prop;
+ struct drm_property *colorkey_val_prop;
+ struct drm_property *colorkey_alpha_prop;
+ struct drm_property *colorkey_mode_prop;
+ struct drm_property *brightness_prop;
+ struct drm_property *contrast_prop;
+ struct drm_property *saturation_prop;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *de;
+#endif
+};
+
+#define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
+
+#if defined(CONFIG_DRM_FBDEV_EMULATION)
+void armada_fbdev_setup(struct drm_device *dev);
+#else
+static inline void armada_fbdev_setup(struct drm_device *dev)
+{ }
+#endif
+
+int armada_overlay_plane_create(struct drm_device *, unsigned long);
+
+void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc);
+int armada_drm_debugfs_init(struct drm_minor *);
+
+#endif
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
new file mode 100644
index 0000000000..e8d2fe9559
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+
+#include <drm/drm_aperture.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_ioctl.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_prime.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_of.h>
+#include <drm/drm_vblank.h>
+
+#include "armada_crtc.h"
+#include "armada_drm.h"
+#include "armada_gem.h"
+#include "armada_fb.h"
+#include "armada_hw.h"
+#include <drm/armada_drm.h>
+#include "armada_ioctlP.h"
+
+static const struct drm_ioctl_desc armada_ioctls[] = {
+ DRM_IOCTL_DEF_DRV(ARMADA_GEM_CREATE, armada_gem_create_ioctl,0),
+ DRM_IOCTL_DEF_DRV(ARMADA_GEM_MMAP, armada_gem_mmap_ioctl, 0),
+ DRM_IOCTL_DEF_DRV(ARMADA_GEM_PWRITE, armada_gem_pwrite_ioctl, 0),
+};
+
+DEFINE_DRM_GEM_FOPS(armada_drm_fops);
+
+static const struct drm_driver armada_drm_driver = {
+ .gem_prime_import = armada_gem_prime_import,
+ .dumb_create = armada_gem_dumb_create,
+ .major = 1,
+ .minor = 0,
+ .name = "armada-drm",
+ .desc = "Armada SoC DRM",
+ .date = "20120730",
+ .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
+ .ioctls = armada_ioctls,
+ .num_ioctls = ARRAY_SIZE(armada_ioctls),
+ .fops = &armada_drm_fops,
+};
+
+static const struct drm_mode_config_funcs armada_drm_mode_config_funcs = {
+ .fb_create = armada_fb_create,
+ .atomic_check = drm_atomic_helper_check,
+ .atomic_commit = drm_atomic_helper_commit,
+};
+
+static int armada_drm_bind(struct device *dev)
+{
+ struct armada_private *priv;
+ struct resource *mem = NULL;
+ int ret, n;
+
+ for (n = 0; ; n++) {
+ struct resource *r = platform_get_resource(to_platform_device(dev),
+ IORESOURCE_MEM, n);
+ if (!r)
+ break;
+
+ /* Resources above 64K are graphics memory */
+ if (resource_size(r) > SZ_64K)
+ mem = r;
+ else
+ return -EINVAL;
+ }
+
+ if (!mem)
+ return -ENXIO;
+
+ if (!devm_request_mem_region(dev, mem->start, resource_size(mem),
+ "armada-drm"))
+ return -EBUSY;
+
+ priv = devm_drm_dev_alloc(dev, &armada_drm_driver,
+ struct armada_private, drm);
+ if (IS_ERR(priv)) {
+ dev_err(dev, "[" DRM_NAME ":%s] devm_drm_dev_alloc failed: %li\n",
+ __func__, PTR_ERR(priv));
+ return PTR_ERR(priv);
+ }
+
+ /* Remove early framebuffers */
+ ret = drm_aperture_remove_framebuffers(&armada_drm_driver);
+ if (ret) {
+ dev_err(dev, "[" DRM_NAME ":%s] can't kick out simple-fb: %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ dev_set_drvdata(dev, &priv->drm);
+
+ /* Mode setting support */
+ drm_mode_config_init(&priv->drm);
+ priv->drm.mode_config.min_width = 320;
+ priv->drm.mode_config.min_height = 200;
+
+ /*
+ * With vscale enabled, the maximum width is 1920 due to the
+ * 1920 by 3 lines RAM
+ */
+ priv->drm.mode_config.max_width = 1920;
+ priv->drm.mode_config.max_height = 2048;
+
+ priv->drm.mode_config.preferred_depth = 24;
+ priv->drm.mode_config.funcs = &armada_drm_mode_config_funcs;
+ drm_mm_init(&priv->linear, mem->start, resource_size(mem));
+ mutex_init(&priv->linear_lock);
+
+ ret = component_bind_all(dev, &priv->drm);
+ if (ret)
+ goto err_kms;
+
+ ret = drm_vblank_init(&priv->drm, priv->drm.mode_config.num_crtc);
+ if (ret)
+ goto err_comp;
+
+ drm_mode_config_reset(&priv->drm);
+
+ drm_kms_helper_poll_init(&priv->drm);
+
+ ret = drm_dev_register(&priv->drm, 0);
+ if (ret)
+ goto err_poll;
+
+#ifdef CONFIG_DEBUG_FS
+ armada_drm_debugfs_init(priv->drm.primary);
+#endif
+
+ armada_fbdev_setup(&priv->drm);
+
+ return 0;
+
+ err_poll:
+ drm_kms_helper_poll_fini(&priv->drm);
+ err_comp:
+ component_unbind_all(dev, &priv->drm);
+ err_kms:
+ drm_mode_config_cleanup(&priv->drm);
+ drm_mm_takedown(&priv->linear);
+ return ret;
+}
+
+static void armada_drm_unbind(struct device *dev)
+{
+ struct drm_device *drm = dev_get_drvdata(dev);
+ struct armada_private *priv = drm_to_armada_dev(drm);
+
+ drm_kms_helper_poll_fini(&priv->drm);
+
+ drm_dev_unregister(&priv->drm);
+
+ drm_atomic_helper_shutdown(&priv->drm);
+
+ component_unbind_all(dev, &priv->drm);
+
+ drm_mode_config_cleanup(&priv->drm);
+ drm_mm_takedown(&priv->linear);
+}
+
+static void armada_add_endpoints(struct device *dev,
+ struct component_match **match, struct device_node *dev_node)
+{
+ struct device_node *ep, *remote;
+
+ for_each_endpoint_of_node(dev_node, ep) {
+ remote = of_graph_get_remote_port_parent(ep);
+ if (remote && of_device_is_available(remote))
+ drm_of_component_match_add(dev, match, component_compare_of,
+ remote);
+ of_node_put(remote);
+ }
+}
+
+static const struct component_master_ops armada_master_ops = {
+ .bind = armada_drm_bind,
+ .unbind = armada_drm_unbind,
+};
+
+static int armada_drm_probe(struct platform_device *pdev)
+{
+ struct component_match *match = NULL;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ ret = drm_of_component_probe(dev, component_compare_dev_name, &armada_master_ops);
+ if (ret != -EINVAL)
+ return ret;
+
+ if (dev->platform_data) {
+ char **devices = dev->platform_data;
+ struct device *d;
+ int i;
+
+ for (i = 0; devices[i]; i++)
+ component_match_add(dev, &match, component_compare_dev_name,
+ devices[i]);
+
+ if (i == 0) {
+ dev_err(dev, "missing 'ports' property\n");
+ return -ENODEV;
+ }
+
+ for (i = 0; devices[i]; i++) {
+ d = bus_find_device_by_name(&platform_bus_type, NULL,
+ devices[i]);
+ if (d && d->of_node)
+ armada_add_endpoints(dev, &match, d->of_node);
+ put_device(d);
+ }
+ }
+
+ return component_master_add_with_match(&pdev->dev, &armada_master_ops,
+ match);
+}
+
+static int armada_drm_remove(struct platform_device *pdev)
+{
+ component_master_del(&pdev->dev, &armada_master_ops);
+ return 0;
+}
+
+static const struct platform_device_id armada_drm_platform_ids[] = {
+ {
+ .name = "armada-drm",
+ }, {
+ .name = "armada-510-drm",
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, armada_drm_platform_ids);
+
+static struct platform_driver armada_drm_platform_driver = {
+ .probe = armada_drm_probe,
+ .remove = armada_drm_remove,
+ .driver = {
+ .name = "armada-drm",
+ },
+ .id_table = armada_drm_platform_ids,
+};
+
+static int __init armada_drm_init(void)
+{
+ int ret;
+
+ if (drm_firmware_drivers_only())
+ return -ENODEV;
+
+ ret = platform_driver_register(&armada_lcd_platform_driver);
+ if (ret)
+ return ret;
+ ret = platform_driver_register(&armada_drm_platform_driver);
+ if (ret)
+ platform_driver_unregister(&armada_lcd_platform_driver);
+ return ret;
+}
+module_init(armada_drm_init);
+
+static void __exit armada_drm_exit(void)
+{
+ platform_driver_unregister(&armada_drm_platform_driver);
+ platform_driver_unregister(&armada_lcd_platform_driver);
+}
+module_exit(armada_drm_exit);
+
+MODULE_AUTHOR("Russell King <rmk+kernel@armlinux.org.uk>");
+MODULE_DESCRIPTION("Armada DRM Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:armada-drm");
diff --git a/drivers/gpu/drm/armada/armada_fb.c b/drivers/gpu/drm/armada/armada_fb.c
new file mode 100644
index 0000000000..cf2e88218d
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_fb.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ */
+
+#include <drm/drm_modeset_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+
+#include "armada_drm.h"
+#include "armada_fb.h"
+#include "armada_gem.h"
+#include "armada_hw.h"
+
+static const struct drm_framebuffer_funcs armada_fb_funcs = {
+ .destroy = drm_gem_fb_destroy,
+ .create_handle = drm_gem_fb_create_handle,
+};
+
+struct armada_framebuffer *armada_framebuffer_create(struct drm_device *dev,
+ const struct drm_mode_fb_cmd2 *mode, struct armada_gem_object *obj)
+{
+ struct armada_framebuffer *dfb;
+ uint8_t format, config;
+ int ret;
+
+ switch (mode->pixel_format) {
+#define FMT(drm, fmt, mod) \
+ case DRM_FORMAT_##drm: \
+ format = CFG_##fmt; \
+ config = mod; \
+ break
+ FMT(RGB565, 565, CFG_SWAPRB);
+ FMT(BGR565, 565, 0);
+ FMT(ARGB1555, 1555, CFG_SWAPRB);
+ FMT(ABGR1555, 1555, 0);
+ FMT(RGB888, 888PACK, CFG_SWAPRB);
+ FMT(BGR888, 888PACK, 0);
+ FMT(XRGB8888, X888, CFG_SWAPRB);
+ FMT(XBGR8888, X888, 0);
+ FMT(ARGB8888, 8888, CFG_SWAPRB);
+ FMT(ABGR8888, 8888, 0);
+ FMT(YUYV, 422PACK, CFG_YUV2RGB | CFG_SWAPYU | CFG_SWAPUV);
+ FMT(UYVY, 422PACK, CFG_YUV2RGB);
+ FMT(VYUY, 422PACK, CFG_YUV2RGB | CFG_SWAPUV);
+ FMT(YVYU, 422PACK, CFG_YUV2RGB | CFG_SWAPYU);
+ FMT(YUV422, 422, CFG_YUV2RGB);
+ FMT(YVU422, 422, CFG_YUV2RGB | CFG_SWAPUV);
+ FMT(YUV420, 420, CFG_YUV2RGB);
+ FMT(YVU420, 420, CFG_YUV2RGB | CFG_SWAPUV);
+ FMT(C8, PSEUDO8, 0);
+#undef FMT
+ default:
+ return ERR_PTR(-EINVAL);
+ }
+
+ dfb = kzalloc(sizeof(*dfb), GFP_KERNEL);
+ if (!dfb) {
+ DRM_ERROR("failed to allocate Armada fb object\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ dfb->fmt = format;
+ dfb->mod = config;
+ dfb->fb.obj[0] = &obj->obj;
+
+ drm_helper_mode_fill_fb_struct(dev, &dfb->fb, mode);
+
+ ret = drm_framebuffer_init(dev, &dfb->fb, &armada_fb_funcs);
+ if (ret) {
+ kfree(dfb);
+ return ERR_PTR(ret);
+ }
+
+ /*
+ * Take a reference on our object as we're successful - the
+ * caller already holds a reference, which keeps us safe for
+ * the above call, but the caller will drop their reference
+ * to it. Hence we need to take our own reference.
+ */
+ drm_gem_object_get(&obj->obj);
+
+ return dfb;
+}
+
+struct drm_framebuffer *armada_fb_create(struct drm_device *dev,
+ struct drm_file *dfile, const struct drm_mode_fb_cmd2 *mode)
+{
+ const struct drm_format_info *info = drm_get_format_info(dev, mode);
+ struct armada_gem_object *obj;
+ struct armada_framebuffer *dfb;
+ int ret;
+
+ DRM_DEBUG_DRIVER("w%u h%u pf%08x f%u p%u,%u,%u\n",
+ mode->width, mode->height, mode->pixel_format,
+ mode->flags, mode->pitches[0], mode->pitches[1],
+ mode->pitches[2]);
+
+ /* We can only handle a single plane at the moment */
+ if (info->num_planes > 1 &&
+ (mode->handles[0] != mode->handles[1] ||
+ mode->handles[0] != mode->handles[2])) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ obj = armada_gem_object_lookup(dfile, mode->handles[0]);
+ if (!obj) {
+ ret = -ENOENT;
+ goto err;
+ }
+
+ if (obj->obj.import_attach && !obj->sgt) {
+ ret = armada_gem_map_import(obj);
+ if (ret)
+ goto err_unref;
+ }
+
+ /* Framebuffer objects must have a valid device address for scanout */
+ if (!obj->mapped) {
+ ret = -EINVAL;
+ goto err_unref;
+ }
+
+ dfb = armada_framebuffer_create(dev, mode, obj);
+ if (IS_ERR(dfb)) {
+ ret = PTR_ERR(dfb);
+ goto err;
+ }
+
+ drm_gem_object_put(&obj->obj);
+
+ return &dfb->fb;
+
+ err_unref:
+ drm_gem_object_put(&obj->obj);
+ err:
+ DRM_ERROR("failed to initialize framebuffer: %d\n", ret);
+ return ERR_PTR(ret);
+}
diff --git a/drivers/gpu/drm/armada/armada_fb.h b/drivers/gpu/drm/armada/armada_fb.h
new file mode 100644
index 0000000000..c5bc53d7e0
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_fb.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 Russell King
+ */
+#ifndef ARMADA_FB_H
+#define ARMADA_FB_H
+
+#include <drm/drm_framebuffer.h>
+
+struct armada_framebuffer {
+ struct drm_framebuffer fb;
+ uint8_t fmt;
+ uint8_t mod;
+};
+#define drm_fb_to_armada_fb(dfb) \
+ container_of(dfb, struct armada_framebuffer, fb)
+#define drm_fb_obj(fb) drm_to_armada_gem((fb)->obj[0])
+
+struct armada_framebuffer *armada_framebuffer_create(struct drm_device *,
+ const struct drm_mode_fb_cmd2 *, struct armada_gem_object *);
+struct drm_framebuffer *armada_fb_create(struct drm_device *dev,
+ struct drm_file *dfile, const struct drm_mode_fb_cmd2 *mode);
+#endif
diff --git a/drivers/gpu/drm/armada/armada_fbdev.c b/drivers/gpu/drm/armada/armada_fbdev.c
new file mode 100644
index 0000000000..d223176912
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_fbdev.c
@@ -0,0 +1,220 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ * Written from the i915 driver.
+ */
+
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
+
+#include "armada_crtc.h"
+#include "armada_drm.h"
+#include "armada_fb.h"
+#include "armada_gem.h"
+
+static void armada_fbdev_fb_destroy(struct fb_info *info)
+{
+ struct drm_fb_helper *fbh = info->par;
+
+ drm_fb_helper_fini(fbh);
+
+ fbh->fb->funcs->destroy(fbh->fb);
+
+ drm_client_release(&fbh->client);
+ drm_fb_helper_unprepare(fbh);
+ kfree(fbh);
+}
+
+static const struct fb_ops armada_fb_ops = {
+ .owner = THIS_MODULE,
+ FB_DEFAULT_IOMEM_OPS,
+ DRM_FB_HELPER_DEFAULT_OPS,
+ .fb_destroy = armada_fbdev_fb_destroy,
+};
+
+static int armada_fbdev_create(struct drm_fb_helper *fbh,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct drm_device *dev = fbh->dev;
+ struct drm_mode_fb_cmd2 mode;
+ struct armada_framebuffer *dfb;
+ struct armada_gem_object *obj;
+ struct fb_info *info;
+ int size, ret;
+ void *ptr;
+
+ memset(&mode, 0, sizeof(mode));
+ mode.width = sizes->surface_width;
+ mode.height = sizes->surface_height;
+ mode.pitches[0] = armada_pitch(mode.width, sizes->surface_bpp);
+ mode.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+ sizes->surface_depth);
+
+ size = mode.pitches[0] * mode.height;
+ obj = armada_gem_alloc_private_object(dev, size);
+ if (!obj) {
+ DRM_ERROR("failed to allocate fb memory\n");
+ return -ENOMEM;
+ }
+
+ ret = armada_gem_linear_back(dev, obj);
+ if (ret) {
+ drm_gem_object_put(&obj->obj);
+ return ret;
+ }
+
+ ptr = armada_gem_map_object(dev, obj);
+ if (!ptr) {
+ drm_gem_object_put(&obj->obj);
+ return -ENOMEM;
+ }
+
+ dfb = armada_framebuffer_create(dev, &mode, obj);
+
+ /*
+ * A reference is now held by the framebuffer object if
+ * successful, otherwise this drops the ref for the error path.
+ */
+ drm_gem_object_put(&obj->obj);
+
+ if (IS_ERR(dfb))
+ return PTR_ERR(dfb);
+
+ info = drm_fb_helper_alloc_info(fbh);
+ if (IS_ERR(info)) {
+ ret = PTR_ERR(info);
+ goto err_fballoc;
+ }
+
+ info->fbops = &armada_fb_ops;
+ info->fix.smem_start = obj->phys_addr;
+ info->fix.smem_len = obj->obj.size;
+ info->screen_size = obj->obj.size;
+ info->screen_base = ptr;
+ fbh->fb = &dfb->fb;
+
+ drm_fb_helper_fill_info(info, fbh, sizes);
+
+ DRM_DEBUG_KMS("allocated %dx%d %dbpp fb: 0x%08llx\n",
+ dfb->fb.width, dfb->fb.height, dfb->fb.format->cpp[0] * 8,
+ (unsigned long long)obj->phys_addr);
+
+ return 0;
+
+ err_fballoc:
+ dfb->fb.funcs->destroy(&dfb->fb);
+ return ret;
+}
+
+static int armada_fb_probe(struct drm_fb_helper *fbh,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ int ret = 0;
+
+ if (!fbh->fb) {
+ ret = armada_fbdev_create(fbh, sizes);
+ if (ret == 0)
+ ret = 1;
+ }
+ return ret;
+}
+
+static const struct drm_fb_helper_funcs armada_fb_helper_funcs = {
+ .fb_probe = armada_fb_probe,
+};
+
+/*
+ * Fbdev client and struct drm_client_funcs
+ */
+
+static void armada_fbdev_client_unregister(struct drm_client_dev *client)
+{
+ struct drm_fb_helper *fbh = drm_fb_helper_from_client(client);
+
+ if (fbh->info) {
+ drm_fb_helper_unregister_info(fbh);
+ } else {
+ drm_client_release(&fbh->client);
+ drm_fb_helper_unprepare(fbh);
+ kfree(fbh);
+ }
+}
+
+static int armada_fbdev_client_restore(struct drm_client_dev *client)
+{
+ drm_fb_helper_lastclose(client->dev);
+
+ return 0;
+}
+
+static int armada_fbdev_client_hotplug(struct drm_client_dev *client)
+{
+ struct drm_fb_helper *fbh = drm_fb_helper_from_client(client);
+ struct drm_device *dev = client->dev;
+ int ret;
+
+ if (dev->fb_helper)
+ return drm_fb_helper_hotplug_event(dev->fb_helper);
+
+ ret = drm_fb_helper_init(dev, fbh);
+ if (ret)
+ goto err_drm_err;
+
+ if (!drm_drv_uses_atomic_modeset(dev))
+ drm_helper_disable_unused_functions(dev);
+
+ ret = drm_fb_helper_initial_config(fbh);
+ if (ret)
+ goto err_drm_fb_helper_fini;
+
+ return 0;
+
+err_drm_fb_helper_fini:
+ drm_fb_helper_fini(fbh);
+err_drm_err:
+ drm_err(dev, "armada: Failed to setup fbdev emulation (ret=%d)\n", ret);
+ return ret;
+}
+
+static const struct drm_client_funcs armada_fbdev_client_funcs = {
+ .owner = THIS_MODULE,
+ .unregister = armada_fbdev_client_unregister,
+ .restore = armada_fbdev_client_restore,
+ .hotplug = armada_fbdev_client_hotplug,
+};
+
+void armada_fbdev_setup(struct drm_device *dev)
+{
+ struct drm_fb_helper *fbh;
+ int ret;
+
+ drm_WARN(dev, !dev->registered, "Device has not been registered.\n");
+ drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
+
+ fbh = kzalloc(sizeof(*fbh), GFP_KERNEL);
+ if (!fbh)
+ return;
+ drm_fb_helper_prepare(dev, fbh, 32, &armada_fb_helper_funcs);
+
+ ret = drm_client_init(dev, &fbh->client, "fbdev", &armada_fbdev_client_funcs);
+ if (ret) {
+ drm_err(dev, "Failed to register client: %d\n", ret);
+ goto err_drm_client_init;
+ }
+
+ drm_client_register(&fbh->client);
+
+ return;
+
+err_drm_client_init:
+ drm_fb_helper_unprepare(fbh);
+ kfree(fbh);
+ return;
+}
diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
new file mode 100644
index 0000000000..26d10065d5
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -0,0 +1,561 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ */
+
+#include <linux/dma-buf.h>
+#include <linux/dma-mapping.h>
+#include <linux/mman.h>
+#include <linux/shmem_fs.h>
+
+#include <drm/armada_drm.h>
+#include <drm/drm_prime.h>
+
+#include "armada_drm.h"
+#include "armada_gem.h"
+#include "armada_ioctlP.h"
+
+MODULE_IMPORT_NS(DMA_BUF);
+
+static vm_fault_t armada_gem_vm_fault(struct vm_fault *vmf)
+{
+ struct drm_gem_object *gobj = vmf->vma->vm_private_data;
+ struct armada_gem_object *obj = drm_to_armada_gem(gobj);
+ unsigned long pfn = obj->phys_addr >> PAGE_SHIFT;
+
+ pfn += (vmf->address - vmf->vma->vm_start) >> PAGE_SHIFT;
+ return vmf_insert_pfn(vmf->vma, vmf->address, pfn);
+}
+
+static const struct vm_operations_struct armada_gem_vm_ops = {
+ .fault = armada_gem_vm_fault,
+ .open = drm_gem_vm_open,
+ .close = drm_gem_vm_close,
+};
+
+static size_t roundup_gem_size(size_t size)
+{
+ return roundup(size, PAGE_SIZE);
+}
+
+void armada_gem_free_object(struct drm_gem_object *obj)
+{
+ struct armada_gem_object *dobj = drm_to_armada_gem(obj);
+ struct armada_private *priv = drm_to_armada_dev(obj->dev);
+
+ DRM_DEBUG_DRIVER("release obj %p\n", dobj);
+
+ drm_gem_free_mmap_offset(&dobj->obj);
+
+ might_lock(&priv->linear_lock);
+
+ if (dobj->page) {
+ /* page backed memory */
+ unsigned int order = get_order(dobj->obj.size);
+ __free_pages(dobj->page, order);
+ } else if (dobj->linear) {
+ /* linear backed memory */
+ mutex_lock(&priv->linear_lock);
+ drm_mm_remove_node(dobj->linear);
+ mutex_unlock(&priv->linear_lock);
+ kfree(dobj->linear);
+ if (dobj->addr)
+ iounmap(dobj->addr);
+ }
+
+ if (dobj->obj.import_attach) {
+ /* We only ever display imported data */
+ if (dobj->sgt)
+ dma_buf_unmap_attachment_unlocked(dobj->obj.import_attach,
+ dobj->sgt, DMA_TO_DEVICE);
+ drm_prime_gem_destroy(&dobj->obj, NULL);
+ }
+
+ drm_gem_object_release(&dobj->obj);
+
+ kfree(dobj);
+}
+
+int
+armada_gem_linear_back(struct drm_device *dev, struct armada_gem_object *obj)
+{
+ struct armada_private *priv = drm_to_armada_dev(dev);
+ size_t size = obj->obj.size;
+
+ if (obj->page || obj->linear)
+ return 0;
+
+ /*
+ * If it is a small allocation (typically cursor, which will
+ * be 32x64 or 64x32 ARGB pixels) try to get it from the system.
+ * Framebuffers will never be this small (our minimum size for
+ * framebuffers is larger than this anyway.) Such objects are
+ * only accessed by the CPU so we don't need any special handing
+ * here.
+ */
+ if (size <= 8192) {
+ unsigned int order = get_order(size);
+ struct page *p = alloc_pages(GFP_KERNEL, order);
+
+ if (p) {
+ obj->addr = page_address(p);
+ obj->phys_addr = page_to_phys(p);
+ obj->page = p;
+
+ memset(obj->addr, 0, PAGE_ALIGN(size));
+ }
+ }
+
+ /*
+ * We could grab something from DMA if it's enabled, but that
+ * involves building in a problem:
+ *
+ * GEM DMA helper interface uses dma_alloc_coherent(), which provides
+ * us with an CPU virtual address and a device address.
+ *
+ * The CPU virtual address may be either an address in the kernel
+ * direct mapped region (for example, as it would be on x86) or
+ * it may be remapped into another part of kernel memory space
+ * (eg, as it would be on ARM.) This means virt_to_phys() on the
+ * returned virtual address is invalid depending on the architecture
+ * implementation.
+ *
+ * The device address may also not be a physical address; it may
+ * be that there is some kind of remapping between the device and
+ * system RAM, which makes the use of the device address also
+ * unsafe to re-use as a physical address.
+ *
+ * This makes DRM usage of dma_alloc_coherent() in a generic way
+ * at best very questionable and unsafe.
+ */
+
+ /* Otherwise, grab it from our linear allocation */
+ if (!obj->page) {
+ struct drm_mm_node *node;
+ unsigned align = min_t(unsigned, size, SZ_2M);
+ void __iomem *ptr;
+ int ret;
+
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ if (!node)
+ return -ENOSPC;
+
+ mutex_lock(&priv->linear_lock);
+ ret = drm_mm_insert_node_generic(&priv->linear, node,
+ size, align, 0, 0);
+ mutex_unlock(&priv->linear_lock);
+ if (ret) {
+ kfree(node);
+ return ret;
+ }
+
+ obj->linear = node;
+
+ /* Ensure that the memory we're returning is cleared. */
+ ptr = ioremap_wc(obj->linear->start, size);
+ if (!ptr) {
+ mutex_lock(&priv->linear_lock);
+ drm_mm_remove_node(obj->linear);
+ mutex_unlock(&priv->linear_lock);
+ kfree(obj->linear);
+ obj->linear = NULL;
+ return -ENOMEM;
+ }
+
+ memset_io(ptr, 0, size);
+ iounmap(ptr);
+
+ obj->phys_addr = obj->linear->start;
+ obj->dev_addr = obj->linear->start;
+ obj->mapped = true;
+ }
+
+ DRM_DEBUG_DRIVER("obj %p phys %#llx dev %#llx\n", obj,
+ (unsigned long long)obj->phys_addr,
+ (unsigned long long)obj->dev_addr);
+
+ return 0;
+}
+
+void *
+armada_gem_map_object(struct drm_device *dev, struct armada_gem_object *dobj)
+{
+ /* only linear objects need to be ioremap'd */
+ if (!dobj->addr && dobj->linear)
+ dobj->addr = ioremap_wc(dobj->phys_addr, dobj->obj.size);
+ return dobj->addr;
+}
+
+static const struct drm_gem_object_funcs armada_gem_object_funcs = {
+ .free = armada_gem_free_object,
+ .export = armada_gem_prime_export,
+ .vm_ops = &armada_gem_vm_ops,
+};
+
+struct armada_gem_object *
+armada_gem_alloc_private_object(struct drm_device *dev, size_t size)
+{
+ struct armada_gem_object *obj;
+
+ size = roundup_gem_size(size);
+
+ obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ return NULL;
+
+ obj->obj.funcs = &armada_gem_object_funcs;
+
+ drm_gem_private_object_init(dev, &obj->obj, size);
+
+ DRM_DEBUG_DRIVER("alloc private obj %p size %zu\n", obj, size);
+
+ return obj;
+}
+
+static struct armada_gem_object *armada_gem_alloc_object(struct drm_device *dev,
+ size_t size)
+{
+ struct armada_gem_object *obj;
+ struct address_space *mapping;
+
+ size = roundup_gem_size(size);
+
+ obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ return NULL;
+
+ obj->obj.funcs = &armada_gem_object_funcs;
+
+ if (drm_gem_object_init(dev, &obj->obj, size)) {
+ kfree(obj);
+ return NULL;
+ }
+
+ mapping = obj->obj.filp->f_mapping;
+ mapping_set_gfp_mask(mapping, GFP_HIGHUSER | __GFP_RECLAIMABLE);
+
+ DRM_DEBUG_DRIVER("alloc obj %p size %zu\n", obj, size);
+
+ return obj;
+}
+
+/* Dumb alloc support */
+int armada_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+ struct drm_mode_create_dumb *args)
+{
+ struct armada_gem_object *dobj;
+ u32 handle;
+ size_t size;
+ int ret;
+
+ args->pitch = armada_pitch(args->width, args->bpp);
+ args->size = size = args->pitch * args->height;
+
+ dobj = armada_gem_alloc_private_object(dev, size);
+ if (dobj == NULL)
+ return -ENOMEM;
+
+ ret = armada_gem_linear_back(dev, dobj);
+ if (ret)
+ goto err;
+
+ ret = drm_gem_handle_create(file, &dobj->obj, &handle);
+ if (ret)
+ goto err;
+
+ args->handle = handle;
+
+ /* drop reference from allocate - handle holds it now */
+ DRM_DEBUG_DRIVER("obj %p size %zu handle %#x\n", dobj, size, handle);
+ err:
+ drm_gem_object_put(&dobj->obj);
+ return ret;
+}
+
+/* Private driver gem ioctls */
+int armada_gem_create_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_armada_gem_create *args = data;
+ struct armada_gem_object *dobj;
+ size_t size;
+ u32 handle;
+ int ret;
+
+ if (args->size == 0)
+ return -ENOMEM;
+
+ size = args->size;
+
+ dobj = armada_gem_alloc_object(dev, size);
+ if (dobj == NULL)
+ return -ENOMEM;
+
+ ret = drm_gem_handle_create(file, &dobj->obj, &handle);
+ if (ret)
+ goto err;
+
+ args->handle = handle;
+
+ /* drop reference from allocate - handle holds it now */
+ DRM_DEBUG_DRIVER("obj %p size %zu handle %#x\n", dobj, size, handle);
+ err:
+ drm_gem_object_put(&dobj->obj);
+ return ret;
+}
+
+/* Map a shmem-backed object into process memory space */
+int armada_gem_mmap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_armada_gem_mmap *args = data;
+ struct armada_gem_object *dobj;
+ unsigned long addr;
+
+ dobj = armada_gem_object_lookup(file, args->handle);
+ if (dobj == NULL)
+ return -ENOENT;
+
+ if (!dobj->obj.filp) {
+ drm_gem_object_put(&dobj->obj);
+ return -EINVAL;
+ }
+
+ addr = vm_mmap(dobj->obj.filp, 0, args->size, PROT_READ | PROT_WRITE,
+ MAP_SHARED, args->offset);
+ drm_gem_object_put(&dobj->obj);
+ if (IS_ERR_VALUE(addr))
+ return addr;
+
+ args->addr = addr;
+
+ return 0;
+}
+
+int armada_gem_pwrite_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_armada_gem_pwrite *args = data;
+ struct armada_gem_object *dobj;
+ char __user *ptr;
+ int ret = 0;
+
+ DRM_DEBUG_DRIVER("handle %u off %u size %u ptr 0x%llx\n",
+ args->handle, args->offset, args->size, args->ptr);
+
+ if (args->size == 0)
+ return 0;
+
+ ptr = (char __user *)(uintptr_t)args->ptr;
+
+ if (!access_ok(ptr, args->size))
+ return -EFAULT;
+
+ if (fault_in_readable(ptr, args->size))
+ return -EFAULT;
+
+ dobj = armada_gem_object_lookup(file, args->handle);
+ if (dobj == NULL)
+ return -ENOENT;
+
+ /* Must be a kernel-mapped object */
+ if (!dobj->addr)
+ return -EINVAL;
+
+ if (args->offset > dobj->obj.size ||
+ args->size > dobj->obj.size - args->offset) {
+ DRM_ERROR("invalid size: object size %u\n", dobj->obj.size);
+ ret = -EINVAL;
+ goto unref;
+ }
+
+ if (copy_from_user(dobj->addr + args->offset, ptr, args->size)) {
+ ret = -EFAULT;
+ } else if (dobj->update) {
+ dobj->update(dobj->update_data);
+ ret = 0;
+ }
+
+ unref:
+ drm_gem_object_put(&dobj->obj);
+ return ret;
+}
+
+/* Prime support */
+static struct sg_table *
+armada_gem_prime_map_dma_buf(struct dma_buf_attachment *attach,
+ enum dma_data_direction dir)
+{
+ struct drm_gem_object *obj = attach->dmabuf->priv;
+ struct armada_gem_object *dobj = drm_to_armada_gem(obj);
+ struct scatterlist *sg;
+ struct sg_table *sgt;
+ int i;
+
+ sgt = kmalloc(sizeof(*sgt), GFP_KERNEL);
+ if (!sgt)
+ return NULL;
+
+ if (dobj->obj.filp) {
+ struct address_space *mapping;
+ int count;
+
+ count = dobj->obj.size / PAGE_SIZE;
+ if (sg_alloc_table(sgt, count, GFP_KERNEL))
+ goto free_sgt;
+
+ mapping = dobj->obj.filp->f_mapping;
+
+ for_each_sgtable_sg(sgt, sg, i) {
+ struct page *page;
+
+ page = shmem_read_mapping_page(mapping, i);
+ if (IS_ERR(page))
+ goto release;
+
+ sg_set_page(sg, page, PAGE_SIZE, 0);
+ }
+
+ if (dma_map_sgtable(attach->dev, sgt, dir, 0))
+ goto release;
+ } else if (dobj->page) {
+ /* Single contiguous page */
+ if (sg_alloc_table(sgt, 1, GFP_KERNEL))
+ goto free_sgt;
+
+ sg_set_page(sgt->sgl, dobj->page, dobj->obj.size, 0);
+
+ if (dma_map_sgtable(attach->dev, sgt, dir, 0))
+ goto free_table;
+ } else if (dobj->linear) {
+ /* Single contiguous physical region - no struct page */
+ if (sg_alloc_table(sgt, 1, GFP_KERNEL))
+ goto free_sgt;
+ sg_dma_address(sgt->sgl) = dobj->dev_addr;
+ sg_dma_len(sgt->sgl) = dobj->obj.size;
+ } else {
+ goto free_sgt;
+ }
+ return sgt;
+
+ release:
+ for_each_sgtable_sg(sgt, sg, i)
+ if (sg_page(sg))
+ put_page(sg_page(sg));
+ free_table:
+ sg_free_table(sgt);
+ free_sgt:
+ kfree(sgt);
+ return NULL;
+}
+
+static void armada_gem_prime_unmap_dma_buf(struct dma_buf_attachment *attach,
+ struct sg_table *sgt, enum dma_data_direction dir)
+{
+ struct drm_gem_object *obj = attach->dmabuf->priv;
+ struct armada_gem_object *dobj = drm_to_armada_gem(obj);
+ int i;
+
+ if (!dobj->linear)
+ dma_unmap_sgtable(attach->dev, sgt, dir, 0);
+
+ if (dobj->obj.filp) {
+ struct scatterlist *sg;
+
+ for_each_sgtable_sg(sgt, sg, i)
+ put_page(sg_page(sg));
+ }
+
+ sg_free_table(sgt);
+ kfree(sgt);
+}
+
+static int
+armada_gem_dmabuf_mmap(struct dma_buf *buf, struct vm_area_struct *vma)
+{
+ return -EINVAL;
+}
+
+static const struct dma_buf_ops armada_gem_prime_dmabuf_ops = {
+ .map_dma_buf = armada_gem_prime_map_dma_buf,
+ .unmap_dma_buf = armada_gem_prime_unmap_dma_buf,
+ .release = drm_gem_dmabuf_release,
+ .mmap = armada_gem_dmabuf_mmap,
+};
+
+struct dma_buf *
+armada_gem_prime_export(struct drm_gem_object *obj, int flags)
+{
+ DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
+
+ exp_info.ops = &armada_gem_prime_dmabuf_ops;
+ exp_info.size = obj->size;
+ exp_info.flags = O_RDWR;
+ exp_info.priv = obj;
+
+ return drm_gem_dmabuf_export(obj->dev, &exp_info);
+}
+
+struct drm_gem_object *
+armada_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
+{
+ struct dma_buf_attachment *attach;
+ struct armada_gem_object *dobj;
+
+ if (buf->ops == &armada_gem_prime_dmabuf_ops) {
+ struct drm_gem_object *obj = buf->priv;
+ if (obj->dev == dev) {
+ /*
+ * Importing our own dmabuf(s) increases the
+ * refcount on the gem object itself.
+ */
+ drm_gem_object_get(obj);
+ return obj;
+ }
+ }
+
+ attach = dma_buf_attach(buf, dev->dev);
+ if (IS_ERR(attach))
+ return ERR_CAST(attach);
+
+ dobj = armada_gem_alloc_private_object(dev, buf->size);
+ if (!dobj) {
+ dma_buf_detach(buf, attach);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ dobj->obj.import_attach = attach;
+ get_dma_buf(buf);
+
+ /*
+ * Don't call dma_buf_map_attachment() here - it maps the
+ * scatterlist immediately for DMA, and this is not always
+ * an appropriate thing to do.
+ */
+ return &dobj->obj;
+}
+
+int armada_gem_map_import(struct armada_gem_object *dobj)
+{
+ int ret;
+
+ dobj->sgt = dma_buf_map_attachment_unlocked(dobj->obj.import_attach,
+ DMA_TO_DEVICE);
+ if (IS_ERR(dobj->sgt)) {
+ ret = PTR_ERR(dobj->sgt);
+ dobj->sgt = NULL;
+ DRM_ERROR("dma_buf_map_attachment() error: %d\n", ret);
+ return ret;
+ }
+ if (dobj->sgt->nents > 1) {
+ DRM_ERROR("dma_buf_map_attachment() returned an (unsupported) scattered list\n");
+ return -EINVAL;
+ }
+ if (sg_dma_len(dobj->sgt->sgl) < dobj->obj.size) {
+ DRM_ERROR("dma_buf_map_attachment() returned a small buffer\n");
+ return -EINVAL;
+ }
+ dobj->dev_addr = sg_dma_address(dobj->sgt->sgl);
+ dobj->mapped = true;
+ return 0;
+}
diff --git a/drivers/gpu/drm/armada/armada_gem.h b/drivers/gpu/drm/armada/armada_gem.h
new file mode 100644
index 0000000000..ffcc7e8dd3
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_gem.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 Russell King
+ */
+#ifndef ARMADA_GEM_H
+#define ARMADA_GEM_H
+
+#include <drm/drm_gem.h>
+
+/* GEM */
+struct armada_gem_object {
+ struct drm_gem_object obj;
+ void *addr;
+ phys_addr_t phys_addr;
+ resource_size_t dev_addr;
+ bool mapped;
+ struct drm_mm_node *linear; /* for linear backed */
+ struct page *page; /* for page backed */
+ struct sg_table *sgt; /* for imported */
+ void (*update)(void *);
+ void *update_data;
+};
+
+#define drm_to_armada_gem(o) container_of(o, struct armada_gem_object, obj)
+
+void armada_gem_free_object(struct drm_gem_object *);
+int armada_gem_linear_back(struct drm_device *, struct armada_gem_object *);
+void *armada_gem_map_object(struct drm_device *, struct armada_gem_object *);
+struct armada_gem_object *armada_gem_alloc_private_object(struct drm_device *,
+ size_t);
+int armada_gem_dumb_create(struct drm_file *, struct drm_device *,
+ struct drm_mode_create_dumb *);
+struct dma_buf *armada_gem_prime_export(struct drm_gem_object *obj, int flags);
+struct drm_gem_object *armada_gem_prime_import(struct drm_device *,
+ struct dma_buf *);
+int armada_gem_map_import(struct armada_gem_object *);
+
+static inline struct armada_gem_object *armada_gem_object_lookup(
+ struct drm_file *dfile, unsigned handle)
+{
+ struct drm_gem_object *obj = drm_gem_object_lookup(dfile, handle);
+
+ return obj ? drm_to_armada_gem(obj) : NULL;
+}
+#endif
diff --git a/drivers/gpu/drm/armada/armada_hw.h b/drivers/gpu/drm/armada/armada_hw.h
new file mode 100644
index 0000000000..9c88b38a40
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_hw.h
@@ -0,0 +1,330 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 Russell King
+ * Rewritten from the dovefb driver, and Armada510 manuals.
+ */
+#ifndef ARMADA_HW_H
+#define ARMADA_HW_H
+
+/*
+ * Note: the following registers are written from IRQ context:
+ * LCD_SPU_V_PORCH, LCD_SPU_ADV_REG, LCD_SPUT_V_H_TOTAL
+ * LCD_SPU_DMA_START_ADDR_[YUV][01], LCD_SPU_DMA_PITCH_YC,
+ * LCD_SPU_DMA_PITCH_UV, LCD_SPU_DMA_OVSA_HPXL_VLN,
+ * LCD_SPU_DMA_HPXL_VLN, LCD_SPU_DZM_HPXL_VLN, LCD_SPU_DMA_CTRL0
+ */
+enum {
+ LCD_SPU_ADV_REG = 0x0084, /* Armada 510 */
+ LCD_SPU_DMA_START_ADDR_Y0 = 0x00c0,
+ LCD_SPU_DMA_START_ADDR_U0 = 0x00c4,
+ LCD_SPU_DMA_START_ADDR_V0 = 0x00c8,
+ LCD_CFG_DMA_START_ADDR_0 = 0x00cc,
+ LCD_SPU_DMA_START_ADDR_Y1 = 0x00d0,
+ LCD_SPU_DMA_START_ADDR_U1 = 0x00d4,
+ LCD_SPU_DMA_START_ADDR_V1 = 0x00d8,
+ LCD_CFG_DMA_START_ADDR_1 = 0x00dc,
+ LCD_SPU_DMA_PITCH_YC = 0x00e0,
+ LCD_SPU_DMA_PITCH_UV = 0x00e4,
+ LCD_SPU_DMA_OVSA_HPXL_VLN = 0x00e8,
+ LCD_SPU_DMA_HPXL_VLN = 0x00ec,
+ LCD_SPU_DZM_HPXL_VLN = 0x00f0,
+ LCD_CFG_GRA_START_ADDR0 = 0x00f4,
+ LCD_CFG_GRA_START_ADDR1 = 0x00f8,
+ LCD_CFG_GRA_PITCH = 0x00fc,
+ LCD_SPU_GRA_OVSA_HPXL_VLN = 0x0100,
+ LCD_SPU_GRA_HPXL_VLN = 0x0104,
+ LCD_SPU_GZM_HPXL_VLN = 0x0108,
+ LCD_SPU_HWC_OVSA_HPXL_VLN = 0x010c,
+ LCD_SPU_HWC_HPXL_VLN = 0x0110,
+ LCD_SPUT_V_H_TOTAL = 0x0114,
+ LCD_SPU_V_H_ACTIVE = 0x0118,
+ LCD_SPU_H_PORCH = 0x011c,
+ LCD_SPU_V_PORCH = 0x0120,
+ LCD_SPU_BLANKCOLOR = 0x0124,
+ LCD_SPU_ALPHA_COLOR1 = 0x0128,
+ LCD_SPU_ALPHA_COLOR2 = 0x012c,
+ LCD_SPU_COLORKEY_Y = 0x0130,
+ LCD_SPU_COLORKEY_U = 0x0134,
+ LCD_SPU_COLORKEY_V = 0x0138,
+ LCD_CFG_RDREG4F = 0x013c, /* Armada 510 */
+ LCD_SPU_SPI_RXDATA = 0x0140,
+ LCD_SPU_ISA_RXDATA = 0x0144,
+ LCD_SPU_HWC_RDDAT = 0x0158,
+ LCD_SPU_GAMMA_RDDAT = 0x015c,
+ LCD_SPU_PALETTE_RDDAT = 0x0160,
+ LCD_SPU_IOPAD_IN = 0x0178,
+ LCD_CFG_RDREG5F = 0x017c,
+ LCD_SPU_SPI_CTRL = 0x0180,
+ LCD_SPU_SPI_TXDATA = 0x0184,
+ LCD_SPU_SMPN_CTRL = 0x0188,
+ LCD_SPU_DMA_CTRL0 = 0x0190,
+ LCD_SPU_DMA_CTRL1 = 0x0194,
+ LCD_SPU_SRAM_CTRL = 0x0198,
+ LCD_SPU_SRAM_WRDAT = 0x019c,
+ LCD_SPU_SRAM_PARA0 = 0x01a0, /* Armada 510 */
+ LCD_SPU_SRAM_PARA1 = 0x01a4,
+ LCD_CFG_SCLK_DIV = 0x01a8,
+ LCD_SPU_CONTRAST = 0x01ac,
+ LCD_SPU_SATURATION = 0x01b0,
+ LCD_SPU_CBSH_HUE = 0x01b4,
+ LCD_SPU_DUMB_CTRL = 0x01b8,
+ LCD_SPU_IOPAD_CONTROL = 0x01bc,
+ LCD_SPU_IRQ_ENA = 0x01c0,
+ LCD_SPU_IRQ_ISR = 0x01c4,
+};
+
+/* For LCD_SPU_ADV_REG */
+enum {
+ ADV_VSYNC_L_OFF = 0xfff << 20,
+ ADV_GRACOLORKEY = 1 << 19,
+ ADV_VIDCOLORKEY = 1 << 18,
+ ADV_HWC32BLEND = 1 << 15,
+ ADV_HWC32ARGB = 1 << 14,
+ ADV_HWC32ENABLE = 1 << 13,
+ ADV_VSYNCOFFEN = 1 << 12,
+ ADV_VSYNC_H_OFF = 0xfff << 0,
+};
+
+/* LCD_CFG_RDREG4F - Armada 510 only */
+enum {
+ CFG_SRAM_WAIT = BIT(11),
+ CFG_SMPN_FASTTX = BIT(10),
+ CFG_DMA_ARB = BIT(9),
+ CFG_DMA_WM_EN = BIT(8),
+ CFG_DMA_WM_MASK = 0xff,
+#define CFG_DMA_WM(x) ((x) & CFG_DMA_WM_MASK)
+};
+
+enum {
+ CFG_565 = 0,
+ CFG_1555 = 1,
+ CFG_888PACK = 2,
+ CFG_X888 = 3,
+ CFG_8888 = 4,
+ CFG_422PACK = 5,
+ CFG_422 = 6,
+ CFG_420 = 7,
+ CFG_PSEUDO4 = 9,
+ CFG_PSEUDO8 = 10,
+ CFG_SWAPRB = 1 << 4,
+ CFG_SWAPUV = 1 << 3,
+ CFG_SWAPYU = 1 << 2,
+ CFG_YUV2RGB = 1 << 1,
+};
+
+/* For LCD_SPU_DMA_CTRL0 */
+enum {
+ CFG_NOBLENDING = 1 << 31,
+ CFG_GAMMA_ENA = 1 << 30,
+ CFG_CBSH_ENA = 1 << 29,
+ CFG_PALETTE_ENA = 1 << 28,
+ CFG_ARBFAST_ENA = 1 << 27,
+ CFG_HWC_1BITMOD = 1 << 26,
+ CFG_HWC_1BITENA = 1 << 25,
+ CFG_HWC_ENA = 1 << 24,
+ CFG_DMAFORMAT = 0xf << 20,
+#define CFG_DMA_FMT(x) ((x) << 20)
+ CFG_GRAFORMAT = 0xf << 16,
+#define CFG_GRA_FMT(x) ((x) << 16)
+#define CFG_GRA_MOD(x) ((x) << 8)
+ CFG_GRA_FTOGGLE = 1 << 15,
+ CFG_GRA_HSMOOTH = 1 << 14,
+ CFG_GRA_TSTMODE = 1 << 13,
+ CFG_GRA_ENA = 1 << 8,
+#define CFG_DMA_MOD(x) ((x) << 0)
+ CFG_DMA_FTOGGLE = 1 << 7,
+ CFG_DMA_HSMOOTH = 1 << 6,
+ CFG_DMA_TSTMODE = 1 << 5,
+ CFG_DMA_ENA = 1 << 0,
+};
+
+enum {
+ CKMODE_DISABLE = 0,
+ CKMODE_Y = 1,
+ CKMODE_U = 2,
+ CKMODE_RGB = 3,
+ CKMODE_V = 4,
+ CKMODE_R = 5,
+ CKMODE_G = 6,
+ CKMODE_B = 7,
+};
+
+/* For LCD_SPU_DMA_CTRL1 */
+enum {
+ CFG_FRAME_TRIG = 1 << 31,
+ CFG_VSYNC_INV = 1 << 27,
+ CFG_CKMODE_MASK = 0x7 << 24,
+#define CFG_CKMODE(x) ((x) << 24)
+ CFG_CARRY = 1 << 23,
+ CFG_GATED_CLK = 1 << 21,
+ CFG_PWRDN_ENA = 1 << 20,
+ CFG_DSCALE_MASK = 0x3 << 18,
+ CFG_DSCALE_NONE = 0x0 << 18,
+ CFG_DSCALE_HALF = 0x1 << 18,
+ CFG_DSCALE_QUAR = 0x2 << 18,
+ CFG_ALPHAM_MASK = 0x3 << 16,
+ CFG_ALPHAM_VIDEO = 0x0 << 16,
+ CFG_ALPHAM_GRA = 0x1 << 16,
+ CFG_ALPHAM_CFG = 0x2 << 16,
+ CFG_ALPHA_MASK = 0xff << 8,
+#define CFG_ALPHA(x) ((x) << 8)
+ CFG_PIXCMD_MASK = 0xff,
+};
+
+/* For LCD_SPU_SRAM_CTRL */
+enum {
+ SRAM_READ = 0 << 14,
+ SRAM_WRITE = 2 << 14,
+ SRAM_INIT = 3 << 14,
+ SRAM_GAMMA_YR = 0x0 << 8,
+ SRAM_GAMMA_UG = 0x1 << 8,
+ SRAM_GAMMA_VB = 0x2 << 8,
+ SRAM_PALETTE = 0x3 << 8,
+ SRAM_HWC32_RAM1 = 0xc << 8,
+ SRAM_HWC32_RAM2 = 0xd << 8,
+ SRAM_HWC32_RAMR = SRAM_HWC32_RAM1,
+ SRAM_HWC32_RAMG = SRAM_HWC32_RAM2,
+ SRAM_HWC32_RAMB = 0xe << 8,
+ SRAM_HWC32_TRAN = 0xf << 8,
+ SRAM_HWC = 0xf << 8,
+};
+
+/* For LCD_SPU_SRAM_PARA1 */
+enum {
+ CFG_CSB_256x32 = 1 << 15, /* cursor */
+ CFG_CSB_256x24 = 1 << 14, /* palette */
+ CFG_CSB_256x8 = 1 << 13, /* gamma */
+ CFG_PDWN1920x32 = 1 << 8, /* Armada 510: power down vscale ram */
+ CFG_PDWN256x32 = 1 << 7, /* power down cursor */
+ CFG_PDWN256x24 = 1 << 6, /* power down palette */
+ CFG_PDWN256x8 = 1 << 5, /* power down gamma */
+ CFG_PDWNHWC = 1 << 4, /* Armada 510: power down all hwc ram */
+ CFG_PDWN32x32 = 1 << 3, /* power down slave->smart ram */
+ CFG_PDWN16x66 = 1 << 2, /* power down UV fifo */
+ CFG_PDWN32x66 = 1 << 1, /* power down Y fifo */
+ CFG_PDWN64x66 = 1 << 0, /* power down graphic fifo */
+};
+
+/* For LCD_CFG_SCLK_DIV */
+enum {
+ /* Armada 510 */
+ SCLK_510_AXI = 0x0 << 30,
+ SCLK_510_EXTCLK0 = 0x1 << 30,
+ SCLK_510_PLL = 0x2 << 30,
+ SCLK_510_EXTCLK1 = 0x3 << 30,
+ SCLK_510_DIV_CHANGE = 1 << 29,
+ SCLK_510_FRAC_DIV_MASK = 0xfff << 16,
+ SCLK_510_INT_DIV_MASK = 0xffff << 0,
+
+ /* Armada 16x */
+ SCLK_16X_AHB = 0x0 << 28,
+ SCLK_16X_PCLK = 0x1 << 28,
+ SCLK_16X_AXI = 0x4 << 28,
+ SCLK_16X_PLL = 0x8 << 28,
+ SCLK_16X_FRAC_DIV_MASK = 0xfff << 16,
+ SCLK_16X_INT_DIV_MASK = 0xffff << 0,
+};
+
+/* For LCD_SPU_DUMB_CTRL */
+enum {
+ DUMB16_RGB565_0 = 0x0 << 28,
+ DUMB16_RGB565_1 = 0x1 << 28,
+ DUMB18_RGB666_0 = 0x2 << 28,
+ DUMB18_RGB666_1 = 0x3 << 28,
+ DUMB12_RGB444_0 = 0x4 << 28,
+ DUMB12_RGB444_1 = 0x5 << 28,
+ DUMB24_RGB888_0 = 0x6 << 28,
+ DUMB_BLANK = 0x7 << 28,
+ DUMB_MASK = 0xf << 28,
+ CFG_BIAS_OUT = 1 << 8,
+ CFG_REV_RGB = 1 << 7,
+ CFG_INV_CBLANK = 1 << 6,
+ CFG_INV_CSYNC = 1 << 5, /* Normally active high */
+ CFG_INV_HENA = 1 << 4,
+ CFG_INV_VSYNC = 1 << 3, /* Normally active high */
+ CFG_INV_HSYNC = 1 << 2, /* Normally active high */
+ CFG_INV_PCLK = 1 << 1,
+ CFG_DUMB_ENA = 1 << 0,
+};
+
+/* For LCD_SPU_IOPAD_CONTROL */
+enum {
+ CFG_VSCALE_LN_EN = 3 << 18,
+ CFG_GRA_VM_ENA = 1 << 15,
+ CFG_DMA_VM_ENA = 1 << 13,
+ CFG_CMD_VM_ENA = 1 << 11,
+ CFG_CSC_MASK = 3 << 8,
+ CFG_CSC_YUV_CCIR709 = 1 << 9,
+ CFG_CSC_YUV_CCIR601 = 0 << 9,
+ CFG_CSC_RGB_STUDIO = 1 << 8,
+ CFG_CSC_RGB_COMPUTER = 0 << 8,
+ CFG_IOPAD_MASK = 0xf << 0,
+ CFG_IOPAD_DUMB24 = 0x0 << 0,
+ CFG_IOPAD_DUMB18SPI = 0x1 << 0,
+ CFG_IOPAD_DUMB18GPIO = 0x2 << 0,
+ CFG_IOPAD_DUMB16SPI = 0x3 << 0,
+ CFG_IOPAD_DUMB16GPIO = 0x4 << 0,
+ CFG_IOPAD_DUMB12GPIO = 0x5 << 0,
+ CFG_IOPAD_SMART18 = 0x6 << 0,
+ CFG_IOPAD_SMART16 = 0x7 << 0,
+ CFG_IOPAD_SMART8 = 0x8 << 0,
+};
+
+#define IOPAD_DUMB24 0x0
+
+/* For LCD_SPU_IRQ_ENA */
+enum {
+ DMA_FRAME_IRQ0_ENA = 1 << 31,
+ DMA_FRAME_IRQ1_ENA = 1 << 30,
+ DMA_FRAME_IRQ_ENA = DMA_FRAME_IRQ0_ENA | DMA_FRAME_IRQ1_ENA,
+ DMA_FF_UNDERFLOW_ENA = 1 << 29,
+ GRA_FRAME_IRQ0_ENA = 1 << 27,
+ GRA_FRAME_IRQ1_ENA = 1 << 26,
+ GRA_FRAME_IRQ_ENA = GRA_FRAME_IRQ0_ENA | GRA_FRAME_IRQ1_ENA,
+ GRA_FF_UNDERFLOW_ENA = 1 << 25,
+ VSYNC_IRQ_ENA = 1 << 23,
+ DUMB_FRAMEDONE_ENA = 1 << 22,
+ TWC_FRAMEDONE_ENA = 1 << 21,
+ HWC_FRAMEDONE_ENA = 1 << 20,
+ SLV_IRQ_ENA = 1 << 19,
+ SPI_IRQ_ENA = 1 << 18,
+ PWRDN_IRQ_ENA = 1 << 17,
+ ERR_IRQ_ENA = 1 << 16,
+ CLEAN_SPU_IRQ_ISR = 0xffff,
+};
+
+/* For LCD_SPU_IRQ_ISR */
+enum {
+ DMA_FRAME_IRQ0 = 1 << 31,
+ DMA_FRAME_IRQ1 = 1 << 30,
+ DMA_FRAME_IRQ = DMA_FRAME_IRQ0 | DMA_FRAME_IRQ1,
+ DMA_FF_UNDERFLOW = 1 << 29,
+ GRA_FRAME_IRQ0 = 1 << 27,
+ GRA_FRAME_IRQ1 = 1 << 26,
+ GRA_FRAME_IRQ = GRA_FRAME_IRQ0 | GRA_FRAME_IRQ1,
+ GRA_FF_UNDERFLOW = 1 << 25,
+ VSYNC_IRQ = 1 << 23,
+ DUMB_FRAMEDONE = 1 << 22,
+ TWC_FRAMEDONE = 1 << 21,
+ HWC_FRAMEDONE = 1 << 20,
+ SLV_IRQ = 1 << 19,
+ SPI_IRQ = 1 << 18,
+ PWRDN_IRQ = 1 << 17,
+ ERR_IRQ = 1 << 16,
+ DMA_FRAME_IRQ0_LEVEL = 1 << 15,
+ DMA_FRAME_IRQ1_LEVEL = 1 << 14,
+ DMA_FRAME_CNT_ISR = 3 << 12,
+ GRA_FRAME_IRQ0_LEVEL = 1 << 11,
+ GRA_FRAME_IRQ1_LEVEL = 1 << 10,
+ GRA_FRAME_CNT_ISR = 3 << 8,
+ VSYNC_IRQ_LEVEL = 1 << 7,
+ DUMB_FRAMEDONE_LEVEL = 1 << 6,
+ TWC_FRAMEDONE_LEVEL = 1 << 5,
+ HWC_FRAMEDONE_LEVEL = 1 << 4,
+ SLV_FF_EMPTY = 1 << 3,
+ DMA_FF_ALLEMPTY = 1 << 2,
+ GRA_FF_ALLEMPTY = 1 << 1,
+ PWRDN_IRQ_LEVEL = 1 << 0,
+};
+
+#endif
diff --git a/drivers/gpu/drm/armada/armada_ioctlP.h b/drivers/gpu/drm/armada/armada_ioctlP.h
new file mode 100644
index 0000000000..c266a01d69
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_ioctlP.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 Russell King
+ */
+#ifndef ARMADA_IOCTLP_H
+#define ARMADA_IOCTLP_H
+
+#define ARMADA_IOCTL_PROTO(name)\
+extern int armada_##name##_ioctl(struct drm_device *, void *, struct drm_file *)
+
+ARMADA_IOCTL_PROTO(gem_create);
+ARMADA_IOCTL_PROTO(gem_mmap);
+ARMADA_IOCTL_PROTO(gem_pwrite);
+
+#endif
diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
new file mode 100644
index 0000000000..3b9bd8ecda
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_overlay.c
@@ -0,0 +1,597 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ * Rewritten from the dovefb driver, and Armada510 manuals.
+ */
+
+#include <linux/bitfield.h>
+
+#include <drm/armada_drm.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_atomic_uapi.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_plane_helper.h>
+
+#include "armada_crtc.h"
+#include "armada_drm.h"
+#include "armada_fb.h"
+#include "armada_gem.h"
+#include "armada_hw.h"
+#include "armada_ioctlP.h"
+#include "armada_plane.h"
+#include "armada_trace.h"
+
+#define DEFAULT_BRIGHTNESS 0
+#define DEFAULT_CONTRAST 0x4000
+#define DEFAULT_SATURATION 0x4000
+#define DEFAULT_ENCODING DRM_COLOR_YCBCR_BT601
+
+struct armada_overlay_state {
+ struct armada_plane_state base;
+ u32 colorkey_yr;
+ u32 colorkey_ug;
+ u32 colorkey_vb;
+ u32 colorkey_mode;
+ u32 colorkey_enable;
+ s16 brightness;
+ u16 contrast;
+ u16 saturation;
+};
+#define drm_to_overlay_state(s) \
+ container_of(s, struct armada_overlay_state, base.base)
+
+static inline u32 armada_spu_contrast(struct drm_plane_state *state)
+{
+ return drm_to_overlay_state(state)->brightness << 16 |
+ drm_to_overlay_state(state)->contrast;
+}
+
+static inline u32 armada_spu_saturation(struct drm_plane_state *state)
+{
+ /* Docs say 15:0, but it seems to actually be 31:16 on Armada 510 */
+ return drm_to_overlay_state(state)->saturation << 16;
+}
+
+static inline u32 armada_csc(struct drm_plane_state *state)
+{
+ /*
+ * The CFG_CSC_RGB_* settings control the output of the colour space
+ * converter, setting the range of output values it produces. Since
+ * we will be blending with the full-range graphics, we need to
+ * produce full-range RGB output from the conversion.
+ */
+ return CFG_CSC_RGB_COMPUTER |
+ (state->color_encoding == DRM_COLOR_YCBCR_BT709 ?
+ CFG_CSC_YUV_CCIR709 : CFG_CSC_YUV_CCIR601);
+}
+
+/* === Plane support === */
+static void armada_drm_overlay_plane_atomic_update(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
+ plane);
+ struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+ plane);
+ struct armada_crtc *dcrtc;
+ struct armada_regs *regs;
+ unsigned int idx;
+ u32 cfg, cfg_mask, val;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
+
+ if (!new_state->fb || WARN_ON(!new_state->crtc))
+ return;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s] is on [CRTC:%d:%s] with [FB:%d] visible %u->%u\n",
+ plane->base.id, plane->name,
+ new_state->crtc->base.id, new_state->crtc->name,
+ new_state->fb->base.id,
+ old_state->visible, new_state->visible);
+
+ dcrtc = drm_to_armada_crtc(new_state->crtc);
+ regs = dcrtc->regs + dcrtc->regs_idx;
+
+ idx = 0;
+ if (!old_state->visible && new_state->visible)
+ armada_reg_queue_mod(regs, idx,
+ 0, CFG_PDWN16x66 | CFG_PDWN32x66,
+ LCD_SPU_SRAM_PARA1);
+ val = armada_src_hw(new_state);
+ if (armada_src_hw(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_HPXL_VLN);
+ val = armada_dst_yx(new_state);
+ if (armada_dst_yx(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_OVSA_HPXL_VLN);
+ val = armada_dst_hw(new_state);
+ if (armada_dst_hw(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_DZM_HPXL_VLN);
+ /* FIXME: overlay on an interlaced display */
+ if (old_state->src.x1 != new_state->src.x1 ||
+ old_state->src.y1 != new_state->src.y1 ||
+ old_state->fb != new_state->fb ||
+ new_state->crtc->state->mode_changed) {
+ const struct drm_format_info *format;
+ u16 src_x;
+
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 0, 0),
+ LCD_SPU_DMA_START_ADDR_Y0);
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 0, 1),
+ LCD_SPU_DMA_START_ADDR_U0);
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 0, 2),
+ LCD_SPU_DMA_START_ADDR_V0);
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 1, 0),
+ LCD_SPU_DMA_START_ADDR_Y1);
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 1, 1),
+ LCD_SPU_DMA_START_ADDR_U1);
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 1, 2),
+ LCD_SPU_DMA_START_ADDR_V1);
+
+ val = armada_pitch(new_state, 0) << 16 | armada_pitch(new_state,
+ 0);
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_PITCH_YC);
+ val = armada_pitch(new_state, 1) << 16 | armada_pitch(new_state,
+ 2);
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_DMA_PITCH_UV);
+
+ cfg = CFG_DMA_FMT(drm_fb_to_armada_fb(new_state->fb)->fmt) |
+ CFG_DMA_MOD(drm_fb_to_armada_fb(new_state->fb)->mod) |
+ CFG_CBSH_ENA;
+ if (new_state->visible)
+ cfg |= CFG_DMA_ENA;
+
+ /*
+ * Shifting a YUV packed format image by one pixel causes the
+ * U/V planes to swap. Compensate for it by also toggling
+ * the UV swap.
+ */
+ format = new_state->fb->format;
+ src_x = new_state->src.x1 >> 16;
+ if (format->num_planes == 1 && src_x & (format->hsub - 1))
+ cfg ^= CFG_DMA_MOD(CFG_SWAPUV);
+ if (to_armada_plane_state(new_state)->interlace)
+ cfg |= CFG_DMA_FTOGGLE;
+ cfg_mask = CFG_CBSH_ENA | CFG_DMAFORMAT |
+ CFG_DMA_MOD(CFG_SWAPRB | CFG_SWAPUV |
+ CFG_SWAPYU | CFG_YUV2RGB) |
+ CFG_DMA_FTOGGLE | CFG_DMA_TSTMODE |
+ CFG_DMA_ENA;
+ } else if (old_state->visible != new_state->visible) {
+ cfg = new_state->visible ? CFG_DMA_ENA : 0;
+ cfg_mask = CFG_DMA_ENA;
+ } else {
+ cfg = cfg_mask = 0;
+ }
+ if (drm_rect_width(&old_state->src) != drm_rect_width(&new_state->src) ||
+ drm_rect_width(&old_state->dst) != drm_rect_width(&new_state->dst)) {
+ cfg_mask |= CFG_DMA_HSMOOTH;
+ if (drm_rect_width(&new_state->src) >> 16 !=
+ drm_rect_width(&new_state->dst))
+ cfg |= CFG_DMA_HSMOOTH;
+ }
+
+ if (cfg_mask)
+ armada_reg_queue_mod(regs, idx, cfg, cfg_mask,
+ LCD_SPU_DMA_CTRL0);
+
+ val = armada_spu_contrast(new_state);
+ if ((!old_state->visible && new_state->visible) ||
+ armada_spu_contrast(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_CONTRAST);
+ val = armada_spu_saturation(new_state);
+ if ((!old_state->visible && new_state->visible) ||
+ armada_spu_saturation(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_SATURATION);
+ if (!old_state->visible && new_state->visible)
+ armada_reg_queue_set(regs, idx, 0x00002000, LCD_SPU_CBSH_HUE);
+ val = armada_csc(new_state);
+ if ((!old_state->visible && new_state->visible) ||
+ armada_csc(old_state) != val)
+ armada_reg_queue_mod(regs, idx, val, CFG_CSC_MASK,
+ LCD_SPU_IOPAD_CONTROL);
+ val = drm_to_overlay_state(new_state)->colorkey_yr;
+ if ((!old_state->visible && new_state->visible) ||
+ drm_to_overlay_state(old_state)->colorkey_yr != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_COLORKEY_Y);
+ val = drm_to_overlay_state(new_state)->colorkey_ug;
+ if ((!old_state->visible && new_state->visible) ||
+ drm_to_overlay_state(old_state)->colorkey_ug != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_COLORKEY_U);
+ val = drm_to_overlay_state(new_state)->colorkey_vb;
+ if ((!old_state->visible && new_state->visible) ||
+ drm_to_overlay_state(old_state)->colorkey_vb != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_COLORKEY_V);
+ val = drm_to_overlay_state(new_state)->colorkey_mode;
+ if ((!old_state->visible && new_state->visible) ||
+ drm_to_overlay_state(old_state)->colorkey_mode != val)
+ armada_reg_queue_mod(regs, idx, val, CFG_CKMODE_MASK |
+ CFG_ALPHAM_MASK | CFG_ALPHA_MASK,
+ LCD_SPU_DMA_CTRL1);
+ val = drm_to_overlay_state(new_state)->colorkey_enable;
+ if (((!old_state->visible && new_state->visible) ||
+ drm_to_overlay_state(old_state)->colorkey_enable != val) &&
+ dcrtc->variant->has_spu_adv_reg)
+ armada_reg_queue_mod(regs, idx, val, ADV_GRACOLORKEY |
+ ADV_VIDCOLORKEY, LCD_SPU_ADV_REG);
+
+ dcrtc->regs_idx += idx;
+}
+
+static void armada_drm_overlay_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
+ plane);
+ struct armada_crtc *dcrtc;
+ struct armada_regs *regs;
+ unsigned int idx = 0;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
+
+ if (!old_state->crtc)
+ return;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s] was on [CRTC:%d:%s] with [FB:%d]\n",
+ plane->base.id, plane->name,
+ old_state->crtc->base.id, old_state->crtc->name,
+ old_state->fb->base.id);
+
+ dcrtc = drm_to_armada_crtc(old_state->crtc);
+ regs = dcrtc->regs + dcrtc->regs_idx;
+
+ /* Disable plane and power down the YUV FIFOs */
+ armada_reg_queue_mod(regs, idx, 0, CFG_DMA_ENA, LCD_SPU_DMA_CTRL0);
+ armada_reg_queue_mod(regs, idx, CFG_PDWN16x66 | CFG_PDWN32x66, 0,
+ LCD_SPU_SRAM_PARA1);
+
+ dcrtc->regs_idx += idx;
+}
+
+static const struct drm_plane_helper_funcs armada_overlay_plane_helper_funcs = {
+ .atomic_check = armada_drm_plane_atomic_check,
+ .atomic_update = armada_drm_overlay_plane_atomic_update,
+ .atomic_disable = armada_drm_overlay_plane_atomic_disable,
+};
+
+static int
+armada_overlay_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
+ uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h,
+ struct drm_modeset_acquire_ctx *ctx)
+{
+ struct drm_atomic_state *state;
+ struct drm_plane_state *plane_state;
+ int ret = 0;
+
+ trace_armada_ovl_plane_update(plane, crtc, fb,
+ crtc_x, crtc_y, crtc_w, crtc_h,
+ src_x, src_y, src_w, src_h);
+
+ state = drm_atomic_state_alloc(plane->dev);
+ if (!state)
+ return -ENOMEM;
+
+ state->acquire_ctx = ctx;
+ plane_state = drm_atomic_get_plane_state(state, plane);
+ if (IS_ERR(plane_state)) {
+ ret = PTR_ERR(plane_state);
+ goto fail;
+ }
+
+ ret = drm_atomic_set_crtc_for_plane(plane_state, crtc);
+ if (ret != 0)
+ goto fail;
+
+ drm_atomic_set_fb_for_plane(plane_state, fb);
+ plane_state->crtc_x = crtc_x;
+ plane_state->crtc_y = crtc_y;
+ plane_state->crtc_h = crtc_h;
+ plane_state->crtc_w = crtc_w;
+ plane_state->src_x = src_x;
+ plane_state->src_y = src_y;
+ plane_state->src_h = src_h;
+ plane_state->src_w = src_w;
+
+ ret = drm_atomic_nonblocking_commit(state);
+fail:
+ drm_atomic_state_put(state);
+ return ret;
+}
+
+static void armada_overlay_reset(struct drm_plane *plane)
+{
+ struct armada_overlay_state *state;
+
+ if (plane->state)
+ __drm_atomic_helper_plane_destroy_state(plane->state);
+ kfree(plane->state);
+ plane->state = NULL;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (state) {
+ state->colorkey_yr = 0xfefefe00;
+ state->colorkey_ug = 0x01010100;
+ state->colorkey_vb = 0x01010100;
+ state->colorkey_mode = CFG_CKMODE(CKMODE_RGB) |
+ CFG_ALPHAM_GRA | CFG_ALPHA(0);
+ state->colorkey_enable = ADV_GRACOLORKEY;
+ state->brightness = DEFAULT_BRIGHTNESS;
+ state->contrast = DEFAULT_CONTRAST;
+ state->saturation = DEFAULT_SATURATION;
+ __drm_atomic_helper_plane_reset(plane, &state->base.base);
+ state->base.base.color_encoding = DEFAULT_ENCODING;
+ state->base.base.color_range = DRM_COLOR_YCBCR_LIMITED_RANGE;
+ }
+}
+
+static struct drm_plane_state *
+armada_overlay_duplicate_state(struct drm_plane *plane)
+{
+ struct armada_overlay_state *state;
+
+ if (WARN_ON(!plane->state))
+ return NULL;
+
+ state = kmemdup(plane->state, sizeof(*state), GFP_KERNEL);
+ if (state)
+ __drm_atomic_helper_plane_duplicate_state(plane,
+ &state->base.base);
+ return &state->base.base;
+}
+
+static int armada_overlay_set_property(struct drm_plane *plane,
+ struct drm_plane_state *state, struct drm_property *property,
+ uint64_t val)
+{
+ struct armada_private *priv = drm_to_armada_dev(plane->dev);
+
+#define K2R(val) (((val) >> 0) & 0xff)
+#define K2G(val) (((val) >> 8) & 0xff)
+#define K2B(val) (((val) >> 16) & 0xff)
+ if (property == priv->colorkey_prop) {
+#define CCC(v) ((v) << 24 | (v) << 16 | (v) << 8)
+ drm_to_overlay_state(state)->colorkey_yr = CCC(K2R(val));
+ drm_to_overlay_state(state)->colorkey_ug = CCC(K2G(val));
+ drm_to_overlay_state(state)->colorkey_vb = CCC(K2B(val));
+#undef CCC
+ } else if (property == priv->colorkey_min_prop) {
+ drm_to_overlay_state(state)->colorkey_yr &= ~0x00ff0000;
+ drm_to_overlay_state(state)->colorkey_yr |= K2R(val) << 16;
+ drm_to_overlay_state(state)->colorkey_ug &= ~0x00ff0000;
+ drm_to_overlay_state(state)->colorkey_ug |= K2G(val) << 16;
+ drm_to_overlay_state(state)->colorkey_vb &= ~0x00ff0000;
+ drm_to_overlay_state(state)->colorkey_vb |= K2B(val) << 16;
+ } else if (property == priv->colorkey_max_prop) {
+ drm_to_overlay_state(state)->colorkey_yr &= ~0xff000000;
+ drm_to_overlay_state(state)->colorkey_yr |= K2R(val) << 24;
+ drm_to_overlay_state(state)->colorkey_ug &= ~0xff000000;
+ drm_to_overlay_state(state)->colorkey_ug |= K2G(val) << 24;
+ drm_to_overlay_state(state)->colorkey_vb &= ~0xff000000;
+ drm_to_overlay_state(state)->colorkey_vb |= K2B(val) << 24;
+ } else if (property == priv->colorkey_val_prop) {
+ drm_to_overlay_state(state)->colorkey_yr &= ~0x0000ff00;
+ drm_to_overlay_state(state)->colorkey_yr |= K2R(val) << 8;
+ drm_to_overlay_state(state)->colorkey_ug &= ~0x0000ff00;
+ drm_to_overlay_state(state)->colorkey_ug |= K2G(val) << 8;
+ drm_to_overlay_state(state)->colorkey_vb &= ~0x0000ff00;
+ drm_to_overlay_state(state)->colorkey_vb |= K2B(val) << 8;
+ } else if (property == priv->colorkey_alpha_prop) {
+ drm_to_overlay_state(state)->colorkey_yr &= ~0x000000ff;
+ drm_to_overlay_state(state)->colorkey_yr |= K2R(val);
+ drm_to_overlay_state(state)->colorkey_ug &= ~0x000000ff;
+ drm_to_overlay_state(state)->colorkey_ug |= K2G(val);
+ drm_to_overlay_state(state)->colorkey_vb &= ~0x000000ff;
+ drm_to_overlay_state(state)->colorkey_vb |= K2B(val);
+ } else if (property == priv->colorkey_mode_prop) {
+ if (val == CKMODE_DISABLE) {
+ drm_to_overlay_state(state)->colorkey_mode =
+ CFG_CKMODE(CKMODE_DISABLE) |
+ CFG_ALPHAM_CFG | CFG_ALPHA(255);
+ drm_to_overlay_state(state)->colorkey_enable = 0;
+ } else {
+ drm_to_overlay_state(state)->colorkey_mode =
+ CFG_CKMODE(val) |
+ CFG_ALPHAM_GRA | CFG_ALPHA(0);
+ drm_to_overlay_state(state)->colorkey_enable =
+ ADV_GRACOLORKEY;
+ }
+ } else if (property == priv->brightness_prop) {
+ drm_to_overlay_state(state)->brightness = val - 256;
+ } else if (property == priv->contrast_prop) {
+ drm_to_overlay_state(state)->contrast = val;
+ } else if (property == priv->saturation_prop) {
+ drm_to_overlay_state(state)->saturation = val;
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int armada_overlay_get_property(struct drm_plane *plane,
+ const struct drm_plane_state *state, struct drm_property *property,
+ uint64_t *val)
+{
+ struct armada_private *priv = drm_to_armada_dev(plane->dev);
+
+#define C2K(c,s) (((c) >> (s)) & 0xff)
+#define R2BGR(r,g,b,s) (C2K(r,s) << 0 | C2K(g,s) << 8 | C2K(b,s) << 16)
+ if (property == priv->colorkey_prop) {
+ /* Do best-efforts here for this property */
+ *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
+ drm_to_overlay_state(state)->colorkey_ug,
+ drm_to_overlay_state(state)->colorkey_vb, 16);
+ /* If min != max, or min != val, error out */
+ if (*val != R2BGR(drm_to_overlay_state(state)->colorkey_yr,
+ drm_to_overlay_state(state)->colorkey_ug,
+ drm_to_overlay_state(state)->colorkey_vb, 24) ||
+ *val != R2BGR(drm_to_overlay_state(state)->colorkey_yr,
+ drm_to_overlay_state(state)->colorkey_ug,
+ drm_to_overlay_state(state)->colorkey_vb, 8))
+ return -EINVAL;
+ } else if (property == priv->colorkey_min_prop) {
+ *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
+ drm_to_overlay_state(state)->colorkey_ug,
+ drm_to_overlay_state(state)->colorkey_vb, 16);
+ } else if (property == priv->colorkey_max_prop) {
+ *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
+ drm_to_overlay_state(state)->colorkey_ug,
+ drm_to_overlay_state(state)->colorkey_vb, 24);
+ } else if (property == priv->colorkey_val_prop) {
+ *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
+ drm_to_overlay_state(state)->colorkey_ug,
+ drm_to_overlay_state(state)->colorkey_vb, 8);
+ } else if (property == priv->colorkey_alpha_prop) {
+ *val = R2BGR(drm_to_overlay_state(state)->colorkey_yr,
+ drm_to_overlay_state(state)->colorkey_ug,
+ drm_to_overlay_state(state)->colorkey_vb, 0);
+ } else if (property == priv->colorkey_mode_prop) {
+ *val = FIELD_GET(CFG_CKMODE_MASK,
+ drm_to_overlay_state(state)->colorkey_mode);
+ } else if (property == priv->brightness_prop) {
+ *val = drm_to_overlay_state(state)->brightness + 256;
+ } else if (property == priv->contrast_prop) {
+ *val = drm_to_overlay_state(state)->contrast;
+ } else if (property == priv->saturation_prop) {
+ *val = drm_to_overlay_state(state)->saturation;
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static const struct drm_plane_funcs armada_ovl_plane_funcs = {
+ .update_plane = armada_overlay_plane_update,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_plane_helper_destroy,
+ .reset = armada_overlay_reset,
+ .atomic_duplicate_state = armada_overlay_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+ .atomic_set_property = armada_overlay_set_property,
+ .atomic_get_property = armada_overlay_get_property,
+};
+
+static const uint32_t armada_ovl_formats[] = {
+ DRM_FORMAT_UYVY,
+ DRM_FORMAT_YUYV,
+ DRM_FORMAT_YUV420,
+ DRM_FORMAT_YVU420,
+ DRM_FORMAT_YUV422,
+ DRM_FORMAT_YVU422,
+ DRM_FORMAT_VYUY,
+ DRM_FORMAT_YVYU,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_ABGR8888,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_XBGR8888,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_BGR888,
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_ABGR1555,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_BGR565,
+};
+
+static const struct drm_prop_enum_list armada_drm_colorkey_enum_list[] = {
+ { CKMODE_DISABLE, "disabled" },
+ { CKMODE_Y, "Y component" },
+ { CKMODE_U, "U component" },
+ { CKMODE_V, "V component" },
+ { CKMODE_RGB, "RGB" },
+ { CKMODE_R, "R component" },
+ { CKMODE_G, "G component" },
+ { CKMODE_B, "B component" },
+};
+
+static int armada_overlay_create_properties(struct drm_device *dev)
+{
+ struct armada_private *priv = drm_to_armada_dev(dev);
+
+ if (priv->colorkey_prop)
+ return 0;
+
+ priv->colorkey_prop = drm_property_create_range(dev, 0,
+ "colorkey", 0, 0xffffff);
+ priv->colorkey_min_prop = drm_property_create_range(dev, 0,
+ "colorkey_min", 0, 0xffffff);
+ priv->colorkey_max_prop = drm_property_create_range(dev, 0,
+ "colorkey_max", 0, 0xffffff);
+ priv->colorkey_val_prop = drm_property_create_range(dev, 0,
+ "colorkey_val", 0, 0xffffff);
+ priv->colorkey_alpha_prop = drm_property_create_range(dev, 0,
+ "colorkey_alpha", 0, 0xffffff);
+ priv->colorkey_mode_prop = drm_property_create_enum(dev, 0,
+ "colorkey_mode",
+ armada_drm_colorkey_enum_list,
+ ARRAY_SIZE(armada_drm_colorkey_enum_list));
+ priv->brightness_prop = drm_property_create_range(dev, 0,
+ "brightness", 0, 256 + 255);
+ priv->contrast_prop = drm_property_create_range(dev, 0,
+ "contrast", 0, 0x7fff);
+ priv->saturation_prop = drm_property_create_range(dev, 0,
+ "saturation", 0, 0x7fff);
+
+ if (!priv->colorkey_prop)
+ return -ENOMEM;
+
+ return 0;
+}
+
+int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
+{
+ struct armada_private *priv = drm_to_armada_dev(dev);
+ struct drm_mode_object *mobj;
+ struct drm_plane *overlay;
+ int ret;
+
+ ret = armada_overlay_create_properties(dev);
+ if (ret)
+ return ret;
+
+ overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
+ if (!overlay)
+ return -ENOMEM;
+
+ drm_plane_helper_add(overlay, &armada_overlay_plane_helper_funcs);
+
+ ret = drm_universal_plane_init(dev, overlay, crtcs,
+ &armada_ovl_plane_funcs,
+ armada_ovl_formats,
+ ARRAY_SIZE(armada_ovl_formats),
+ NULL,
+ DRM_PLANE_TYPE_OVERLAY, NULL);
+ if (ret) {
+ kfree(overlay);
+ return ret;
+ }
+
+ mobj = &overlay->base;
+ drm_object_attach_property(mobj, priv->colorkey_prop,
+ 0x0101fe);
+ drm_object_attach_property(mobj, priv->colorkey_min_prop,
+ 0x0101fe);
+ drm_object_attach_property(mobj, priv->colorkey_max_prop,
+ 0x0101fe);
+ drm_object_attach_property(mobj, priv->colorkey_val_prop,
+ 0x0101fe);
+ drm_object_attach_property(mobj, priv->colorkey_alpha_prop,
+ 0x000000);
+ drm_object_attach_property(mobj, priv->colorkey_mode_prop,
+ CKMODE_RGB);
+ drm_object_attach_property(mobj, priv->brightness_prop,
+ 256 + DEFAULT_BRIGHTNESS);
+ drm_object_attach_property(mobj, priv->contrast_prop,
+ DEFAULT_CONTRAST);
+ drm_object_attach_property(mobj, priv->saturation_prop,
+ DEFAULT_SATURATION);
+
+ ret = drm_plane_create_color_properties(overlay,
+ BIT(DRM_COLOR_YCBCR_BT601) |
+ BIT(DRM_COLOR_YCBCR_BT709),
+ BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
+ DEFAULT_ENCODING,
+ DRM_COLOR_YCBCR_LIMITED_RANGE);
+
+ return ret;
+}
diff --git a/drivers/gpu/drm/armada/armada_plane.c b/drivers/gpu/drm/armada/armada_plane.c
new file mode 100644
index 0000000000..cc47c032db
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_plane.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Russell King
+ * Rewritten from the dovefb driver, and Armada510 manuals.
+ */
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_plane_helper.h>
+
+#include "armada_crtc.h"
+#include "armada_drm.h"
+#include "armada_fb.h"
+#include "armada_gem.h"
+#include "armada_hw.h"
+#include "armada_plane.h"
+#include "armada_trace.h"
+
+static const uint32_t armada_primary_formats[] = {
+ DRM_FORMAT_UYVY,
+ DRM_FORMAT_YUYV,
+ DRM_FORMAT_VYUY,
+ DRM_FORMAT_YVYU,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_ABGR8888,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_XBGR8888,
+ DRM_FORMAT_RGB888,
+ DRM_FORMAT_BGR888,
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_ABGR1555,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_BGR565,
+};
+
+void armada_drm_plane_calc(struct drm_plane_state *state, u32 addrs[2][3],
+ u16 pitches[3], bool interlaced)
+{
+ struct drm_framebuffer *fb = state->fb;
+ const struct drm_format_info *format = fb->format;
+ unsigned int num_planes = format->num_planes;
+ unsigned int x = state->src.x1 >> 16;
+ unsigned int y = state->src.y1 >> 16;
+ u32 addr = drm_fb_obj(fb)->dev_addr;
+ int i;
+
+ DRM_DEBUG_KMS("pitch %u x %d y %d bpp %d\n",
+ fb->pitches[0], x, y, format->cpp[0] * 8);
+
+ if (num_planes > 3)
+ num_planes = 3;
+
+ addrs[0][0] = addr + fb->offsets[0] + y * fb->pitches[0] +
+ x * format->cpp[0];
+ pitches[0] = fb->pitches[0];
+
+ y /= format->vsub;
+ x /= format->hsub;
+
+ for (i = 1; i < num_planes; i++) {
+ addrs[0][i] = addr + fb->offsets[i] + y * fb->pitches[i] +
+ x * format->cpp[i];
+ pitches[i] = fb->pitches[i];
+ }
+ for (; i < 3; i++) {
+ addrs[0][i] = 0;
+ pitches[i] = 0;
+ }
+ if (interlaced) {
+ for (i = 0; i < 3; i++) {
+ addrs[1][i] = addrs[0][i] + pitches[i];
+ pitches[i] *= 2;
+ }
+ } else {
+ for (i = 0; i < 3; i++)
+ addrs[1][i] = addrs[0][i];
+ }
+}
+
+int armada_drm_plane_atomic_check(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
+ plane);
+ struct armada_plane_state *st = to_armada_plane_state(new_plane_state);
+ struct drm_crtc *crtc = new_plane_state->crtc;
+ struct drm_crtc_state *crtc_state;
+ bool interlace;
+ int ret;
+
+ if (!new_plane_state->fb || WARN_ON(!new_plane_state->crtc)) {
+ new_plane_state->visible = false;
+ return 0;
+ }
+
+ if (state)
+ crtc_state = drm_atomic_get_existing_crtc_state(state,
+ crtc);
+ else
+ crtc_state = crtc->state;
+
+ ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
+ 0,
+ INT_MAX, true, false);
+ if (ret)
+ return ret;
+
+ interlace = crtc_state->adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE;
+ if (interlace) {
+ if ((new_plane_state->dst.y1 | new_plane_state->dst.y2) & 1)
+ return -EINVAL;
+ st->src_hw = drm_rect_height(&new_plane_state->src) >> 17;
+ st->dst_yx = new_plane_state->dst.y1 >> 1;
+ st->dst_hw = drm_rect_height(&new_plane_state->dst) >> 1;
+ } else {
+ st->src_hw = drm_rect_height(&new_plane_state->src) >> 16;
+ st->dst_yx = new_plane_state->dst.y1;
+ st->dst_hw = drm_rect_height(&new_plane_state->dst);
+ }
+
+ st->src_hw <<= 16;
+ st->src_hw |= drm_rect_width(&new_plane_state->src) >> 16;
+ st->dst_yx <<= 16;
+ st->dst_yx |= new_plane_state->dst.x1 & 0x0000ffff;
+ st->dst_hw <<= 16;
+ st->dst_hw |= drm_rect_width(&new_plane_state->dst) & 0x0000ffff;
+
+ armada_drm_plane_calc(new_plane_state, st->addrs, st->pitches,
+ interlace);
+ st->interlace = interlace;
+
+ return 0;
+}
+
+static void armada_drm_primary_plane_atomic_update(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
+ plane);
+ struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+ plane);
+ struct armada_crtc *dcrtc;
+ struct armada_regs *regs;
+ u32 cfg, cfg_mask, val;
+ unsigned int idx;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
+
+ if (!new_state->fb || WARN_ON(!new_state->crtc))
+ return;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s] is on [CRTC:%d:%s] with [FB:%d] visible %u->%u\n",
+ plane->base.id, plane->name,
+ new_state->crtc->base.id, new_state->crtc->name,
+ new_state->fb->base.id,
+ old_state->visible, new_state->visible);
+
+ dcrtc = drm_to_armada_crtc(new_state->crtc);
+ regs = dcrtc->regs + dcrtc->regs_idx;
+
+ idx = 0;
+ if (!old_state->visible && new_state->visible) {
+ val = CFG_PDWN64x66;
+ if (drm_fb_to_armada_fb(new_state->fb)->fmt > CFG_420)
+ val |= CFG_PDWN256x24;
+ armada_reg_queue_mod(regs, idx, 0, val, LCD_SPU_SRAM_PARA1);
+ }
+ val = armada_src_hw(new_state);
+ if (armada_src_hw(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_GRA_HPXL_VLN);
+ val = armada_dst_yx(new_state);
+ if (armada_dst_yx(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_GRA_OVSA_HPXL_VLN);
+ val = armada_dst_hw(new_state);
+ if (armada_dst_hw(old_state) != val)
+ armada_reg_queue_set(regs, idx, val, LCD_SPU_GZM_HPXL_VLN);
+ if (old_state->src.x1 != new_state->src.x1 ||
+ old_state->src.y1 != new_state->src.y1 ||
+ old_state->fb != new_state->fb ||
+ new_state->crtc->state->mode_changed) {
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 0, 0),
+ LCD_CFG_GRA_START_ADDR0);
+ armada_reg_queue_set(regs, idx, armada_addr(new_state, 1, 0),
+ LCD_CFG_GRA_START_ADDR1);
+ armada_reg_queue_mod(regs, idx, armada_pitch(new_state, 0),
+ 0xffff,
+ LCD_CFG_GRA_PITCH);
+ }
+ if (old_state->fb != new_state->fb ||
+ new_state->crtc->state->mode_changed) {
+ cfg = CFG_GRA_FMT(drm_fb_to_armada_fb(new_state->fb)->fmt) |
+ CFG_GRA_MOD(drm_fb_to_armada_fb(new_state->fb)->mod);
+ if (drm_fb_to_armada_fb(new_state->fb)->fmt > CFG_420)
+ cfg |= CFG_PALETTE_ENA;
+ if (new_state->visible)
+ cfg |= CFG_GRA_ENA;
+ if (to_armada_plane_state(new_state)->interlace)
+ cfg |= CFG_GRA_FTOGGLE;
+ cfg_mask = CFG_GRAFORMAT |
+ CFG_GRA_MOD(CFG_SWAPRB | CFG_SWAPUV |
+ CFG_SWAPYU | CFG_YUV2RGB) |
+ CFG_PALETTE_ENA | CFG_GRA_FTOGGLE |
+ CFG_GRA_ENA;
+ } else if (old_state->visible != new_state->visible) {
+ cfg = new_state->visible ? CFG_GRA_ENA : 0;
+ cfg_mask = CFG_GRA_ENA;
+ } else {
+ cfg = cfg_mask = 0;
+ }
+ if (drm_rect_width(&old_state->src) != drm_rect_width(&new_state->src) ||
+ drm_rect_width(&old_state->dst) != drm_rect_width(&new_state->dst)) {
+ cfg_mask |= CFG_GRA_HSMOOTH;
+ if (drm_rect_width(&new_state->src) >> 16 !=
+ drm_rect_width(&new_state->dst))
+ cfg |= CFG_GRA_HSMOOTH;
+ }
+
+ if (cfg_mask)
+ armada_reg_queue_mod(regs, idx, cfg, cfg_mask,
+ LCD_SPU_DMA_CTRL0);
+
+ dcrtc->regs_idx += idx;
+}
+
+static void armada_drm_primary_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
+ plane);
+ struct armada_crtc *dcrtc;
+ struct armada_regs *regs;
+ unsigned int idx = 0;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s]\n", plane->base.id, plane->name);
+
+ if (!old_state->crtc)
+ return;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s] was on [CRTC:%d:%s] with [FB:%d]\n",
+ plane->base.id, plane->name,
+ old_state->crtc->base.id, old_state->crtc->name,
+ old_state->fb->base.id);
+
+ dcrtc = drm_to_armada_crtc(old_state->crtc);
+ regs = dcrtc->regs + dcrtc->regs_idx;
+
+ /* Disable plane and power down most RAMs and FIFOs */
+ armada_reg_queue_mod(regs, idx, 0, CFG_GRA_ENA, LCD_SPU_DMA_CTRL0);
+ armada_reg_queue_mod(regs, idx, CFG_PDWN256x32 | CFG_PDWN256x24 |
+ CFG_PDWN32x32 | CFG_PDWN64x66,
+ 0, LCD_SPU_SRAM_PARA1);
+
+ dcrtc->regs_idx += idx;
+}
+
+static const struct drm_plane_helper_funcs armada_primary_plane_helper_funcs = {
+ .atomic_check = armada_drm_plane_atomic_check,
+ .atomic_update = armada_drm_primary_plane_atomic_update,
+ .atomic_disable = armada_drm_primary_plane_atomic_disable,
+};
+
+void armada_plane_reset(struct drm_plane *plane)
+{
+ struct armada_plane_state *st;
+ if (plane->state)
+ __drm_atomic_helper_plane_destroy_state(plane->state);
+ kfree(plane->state);
+ st = kzalloc(sizeof(*st), GFP_KERNEL);
+ if (st)
+ __drm_atomic_helper_plane_reset(plane, &st->base);
+}
+
+struct drm_plane_state *armada_plane_duplicate_state(struct drm_plane *plane)
+{
+ struct armada_plane_state *st;
+
+ if (WARN_ON(!plane->state))
+ return NULL;
+
+ st = kmemdup(plane->state, sizeof(*st), GFP_KERNEL);
+ if (st)
+ __drm_atomic_helper_plane_duplicate_state(plane, &st->base);
+
+ return &st->base;
+}
+
+static const struct drm_plane_funcs armada_primary_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_plane_helper_destroy,
+ .reset = armada_plane_reset,
+ .atomic_duplicate_state = armada_plane_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+};
+
+int armada_drm_primary_plane_init(struct drm_device *drm,
+ struct drm_plane *primary)
+{
+ int ret;
+
+ drm_plane_helper_add(primary, &armada_primary_plane_helper_funcs);
+
+ ret = drm_universal_plane_init(drm, primary, 0,
+ &armada_primary_plane_funcs,
+ armada_primary_formats,
+ ARRAY_SIZE(armada_primary_formats),
+ NULL,
+ DRM_PLANE_TYPE_PRIMARY, NULL);
+
+ return ret;
+}
diff --git a/drivers/gpu/drm/armada/armada_plane.h b/drivers/gpu/drm/armada/armada_plane.h
new file mode 100644
index 0000000000..368415c609
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_plane.h
@@ -0,0 +1,36 @@
+#ifndef ARMADA_PLANE_H
+#define ARMADA_PLANE_H
+
+struct armada_plane_state {
+ struct drm_plane_state base;
+ u32 src_hw;
+ u32 dst_yx;
+ u32 dst_hw;
+ u32 addrs[2][3];
+ u16 pitches[3];
+ bool interlace;
+};
+
+#define to_armada_plane_state(st) \
+ container_of(st, struct armada_plane_state, base)
+#define armada_src_hw(state) to_armada_plane_state(state)->src_hw
+#define armada_dst_yx(state) to_armada_plane_state(state)->dst_yx
+#define armada_dst_hw(state) to_armada_plane_state(state)->dst_hw
+#define armada_addr(state, f, p) to_armada_plane_state(state)->addrs[f][p]
+#define armada_pitch(state, n) to_armada_plane_state(state)->pitches[n]
+
+void armada_drm_plane_calc(struct drm_plane_state *state, u32 addrs[2][3],
+ u16 pitches[3], bool interlaced);
+void armada_drm_plane_cleanup_fb(struct drm_plane *plane,
+ struct drm_plane_state *old_state);
+int armada_drm_plane_atomic_check(struct drm_plane *plane,
+ struct drm_atomic_state *state);
+void armada_plane_reset(struct drm_plane *plane);
+struct drm_plane_state *armada_plane_duplicate_state(struct drm_plane *plane);
+void armada_plane_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state *state);
+
+int armada_drm_primary_plane_init(struct drm_device *drm,
+ struct drm_plane *primary);
+
+#endif
diff --git a/drivers/gpu/drm/armada/armada_trace.c b/drivers/gpu/drm/armada/armada_trace.c
new file mode 100644
index 0000000000..c64cce325c
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_trace.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "armada_trace.h"
+#endif
diff --git a/drivers/gpu/drm/armada/armada_trace.h b/drivers/gpu/drm/armada/armada_trace.h
new file mode 100644
index 0000000000..528f20fe31
--- /dev/null
+++ b/drivers/gpu/drm/armada/armada_trace.h
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(ARMADA_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define ARMADA_TRACE_H
+
+#include <linux/tracepoint.h>
+
+struct drm_crtc;
+struct drm_framebuffer;
+struct drm_plane;
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM armada
+#define TRACE_INCLUDE_FILE armada_trace
+
+TRACE_EVENT(armada_drm_irq,
+ TP_PROTO(struct drm_crtc *crtc, u32 stat),
+ TP_ARGS(crtc, stat),
+ TP_STRUCT__entry(
+ __field(struct drm_crtc *, crtc)
+ __field(u32, stat)
+ ),
+ TP_fast_assign(
+ __entry->crtc = crtc;
+ __entry->stat = stat;
+ ),
+ TP_printk("crtc %p stat 0x%08x",
+ __entry->crtc, __entry->stat)
+);
+
+TRACE_EVENT(armada_ovl_plane_update,
+ TP_PROTO(struct drm_plane *plane, struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
+ uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h),
+ TP_ARGS(plane, crtc, fb, crtc_x, crtc_y, crtc_w, crtc_h, src_x, src_y, src_w, src_h),
+ TP_STRUCT__entry(
+ __field(struct drm_plane *, plane)
+ __field(struct drm_crtc *, crtc)
+ __field(struct drm_framebuffer *, fb)
+ __field(int, crtc_x)
+ __field(int, crtc_y)
+ __field(unsigned int, crtc_w)
+ __field(unsigned int, crtc_h)
+ __field(u32, src_x)
+ __field(u32, src_y)
+ __field(u32, src_w)
+ __field(u32, src_h)
+ ),
+ TP_fast_assign(
+ __entry->plane = plane;
+ __entry->crtc = crtc;
+ __entry->fb = fb;
+ __entry->crtc_x = crtc_x;
+ __entry->crtc_y = crtc_y;
+ __entry->crtc_w = crtc_w;
+ __entry->crtc_h = crtc_h;
+ __entry->src_x = src_x;
+ __entry->src_y = src_y;
+ __entry->src_w = src_w;
+ __entry->src_h = src_h;
+ ),
+ TP_printk("plane %p crtc %p fb %p crtc @ (%d,%d, %ux%u) src @ (%u,%u, %ux%u)",
+ __entry->plane, __entry->crtc, __entry->fb,
+ __entry->crtc_x, __entry->crtc_y,
+ __entry->crtc_w, __entry->crtc_h,
+ __entry->src_x >> 16, __entry->src_y >> 16,
+ __entry->src_w >> 16, __entry->src_h >> 16)
+);
+
+TRACE_EVENT(armada_ovl_plane_work,
+ TP_PROTO(struct drm_crtc *crtc, struct drm_plane *plane),
+ TP_ARGS(crtc, plane),
+ TP_STRUCT__entry(
+ __field(struct drm_plane *, plane)
+ __field(struct drm_crtc *, crtc)
+ ),
+ TP_fast_assign(
+ __entry->plane = plane;
+ __entry->crtc = crtc;
+ ),
+ TP_printk("plane %p crtc %p",
+ __entry->plane, __entry->crtc)
+);
+
+#endif
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/armada
+#include <trace/define_trace.h>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 02:50:02 +0000