From da52605eea8f2cac9f0bebe656e96cf570697d52 Mon Sep 17 00:00:00 2001 From: Rongrong Zou Date: Wed, 16 Nov 2016 20:54:52 +0800 Subject: [PATCH] drm/hisilicon/hibmc: Add support for display engine Add display engine function, crtc/plane is initialized here. Signed-off-by: Rongrong Zou Reviewed-by: Sean Paul Reviewed-by: Xinliang Liu Acked-by: Sean Paul --- drivers/gpu/drm/hisilicon/hibmc/Makefile | 2 +- .../gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 477 ++++++++++++++++++ .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 69 ++- .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 6 + drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 6 + 5 files changed, 558 insertions(+), 2 deletions(-) create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c diff --git a/drivers/gpu/drm/hisilicon/hibmc/Makefile b/drivers/gpu/drm/hisilicon/hibmc/Makefile index ff77a7efb259..8e0cf72b9764 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/Makefile +++ b/drivers/gpu/drm/hisilicon/hibmc/Makefile @@ -1,4 +1,4 @@ ccflags-y := -Iinclude/drm -hibmc-drm-y := hibmc_drm_drv.o hibmc_drm_fbdev.o hibmc_ttm.o +hibmc-drm-y := hibmc_drm_drv.o hibmc_drm_de.o hibmc_drm_fbdev.o hibmc_ttm.o obj-$(CONFIG_DRM_HISI_HIBMC) += hibmc-drm.o diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c new file mode 100644 index 000000000000..2a1386e33126 --- /dev/null +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c @@ -0,0 +1,477 @@ +/* Hisilicon Hibmc SoC drm driver + * + * Based on the bochs drm driver. + * + * Copyright (c) 2016 Huawei Limited. + * + * Author: + * Rongrong Zou + * Rongrong Zou + * Jianhua Li + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include +#include +#include +#include + +#include "hibmc_drm_drv.h" +#include "hibmc_drm_regs.h" + +struct hibmc_display_panel_pll { + unsigned long M; + unsigned long N; + unsigned long OD; + unsigned long POD; +}; + +struct hibmc_dislay_pll_config { + unsigned long hdisplay; + unsigned long vdisplay; + u32 pll1_config_value; + u32 pll2_config_value; +}; + +static const struct hibmc_dislay_pll_config hibmc_pll_table[] = { + {800, 600, CRT_PLL1_HS_40MHZ, CRT_PLL2_HS_40MHZ}, + {1024, 768, CRT_PLL1_HS_65MHZ, CRT_PLL2_HS_65MHZ}, + {1152, 864, CRT_PLL1_HS_80MHZ_1152, CRT_PLL2_HS_80MHZ}, + {1280, 768, CRT_PLL1_HS_80MHZ, CRT_PLL2_HS_80MHZ}, + {1280, 720, CRT_PLL1_HS_74MHZ, CRT_PLL2_HS_74MHZ}, + {1280, 960, CRT_PLL1_HS_108MHZ, CRT_PLL2_HS_108MHZ}, + {1280, 1024, CRT_PLL1_HS_108MHZ, CRT_PLL2_HS_108MHZ}, + {1600, 1200, CRT_PLL1_HS_162MHZ, CRT_PLL2_HS_162MHZ}, + {1920, 1080, CRT_PLL1_HS_148MHZ, CRT_PLL2_HS_148MHZ}, + {1920, 1200, CRT_PLL1_HS_193MHZ, CRT_PLL2_HS_193MHZ}, +}; + +#define PADDING(align, data) (((data) + (align) - 1) & (~((align) - 1))) + +static int hibmc_plane_atomic_check(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_framebuffer *fb = state->fb; + struct drm_crtc *crtc = state->crtc; + struct drm_crtc_state *crtc_state; + u32 src_w = state->src_w >> 16; + u32 src_h = state->src_h >> 16; + + if (!crtc || !fb) + return 0; + + crtc_state = drm_atomic_get_crtc_state(state->state, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + if (src_w != state->crtc_w || src_h != state->crtc_h) { + DRM_DEBUG_ATOMIC("scale not support\n"); + return -EINVAL; + } + + if (state->crtc_x < 0 || state->crtc_y < 0) { + DRM_DEBUG_ATOMIC("crtc_x/y of drm_plane state is invalid\n"); + return -EINVAL; + } + + if (state->crtc_x + state->crtc_w > + crtc_state->adjusted_mode.hdisplay || + state->crtc_y + state->crtc_h > + crtc_state->adjusted_mode.vdisplay) { + DRM_DEBUG_ATOMIC("visible portion of plane is invalid\n"); + return -EINVAL; + } + + return 0; +} + +static void hibmc_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct drm_plane_state *state = plane->state; + u32 reg; + int ret; + u64 gpu_addr = 0; + unsigned int line_l; + struct hibmc_drm_private *priv = plane->dev->dev_private; + struct hibmc_framebuffer *hibmc_fb; + struct hibmc_bo *bo; + + if (!state->fb) + return; + + hibmc_fb = to_hibmc_framebuffer(state->fb); + bo = gem_to_hibmc_bo(hibmc_fb->obj); + ret = ttm_bo_reserve(&bo->bo, true, false, NULL); + if (ret) { + DRM_ERROR("failed to reserve ttm_bo: %d", ret); + return; + } + + ret = hibmc_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr); + ttm_bo_unreserve(&bo->bo); + if (ret) { + DRM_ERROR("failed to pin hibmc_bo: %d", ret); + return; + } + + writel(gpu_addr, priv->mmio + HIBMC_CRT_FB_ADDRESS); + + reg = state->fb->width * (state->fb->bits_per_pixel / 8); + /* now line_pad is 16 */ + reg = PADDING(16, reg); + + line_l = state->fb->width * state->fb->bits_per_pixel / 8; + line_l = PADDING(16, line_l); + writel(HIBMC_FIELD(HIBMC_CRT_FB_WIDTH_WIDTH, reg) | + HIBMC_FIELD(HIBMC_CRT_FB_WIDTH_OFFS, line_l), + priv->mmio + HIBMC_CRT_FB_WIDTH); + + /* SET PIXEL FORMAT */ + reg = readl(priv->mmio + HIBMC_CRT_DISP_CTL); + reg &= ~HIBMC_CRT_DISP_CTL_FORMAT_MASK; + reg |= HIBMC_FIELD(HIBMC_CRT_DISP_CTL_FORMAT, + state->fb->bits_per_pixel / 16); + writel(reg, priv->mmio + HIBMC_CRT_DISP_CTL); +} + +static const u32 channel_formats1[] = { + DRM_FORMAT_RGB565, DRM_FORMAT_BGR565, DRM_FORMAT_RGB888, + DRM_FORMAT_BGR888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR8888, + DRM_FORMAT_RGBA8888, DRM_FORMAT_BGRA8888, DRM_FORMAT_ARGB8888, + DRM_FORMAT_ABGR8888 +}; + +static struct drm_plane_funcs hibmc_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .set_property = drm_atomic_helper_plane_set_property, + .destroy = drm_plane_cleanup, + .reset = drm_atomic_helper_plane_reset, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, +}; + +static const struct drm_plane_helper_funcs hibmc_plane_helper_funcs = { + .atomic_check = hibmc_plane_atomic_check, + .atomic_update = hibmc_plane_atomic_update, +}; + +static struct drm_plane *hibmc_plane_init(struct hibmc_drm_private *priv) +{ + struct drm_device *dev = priv->dev; + struct drm_plane *plane; + int ret = 0; + + plane = devm_kzalloc(dev->dev, sizeof(*plane), GFP_KERNEL); + if (!plane) { + DRM_ERROR("failed to alloc memory when init plane\n"); + return ERR_PTR(-ENOMEM); + } + /* + * plane init + * TODO: Now only support primary plane, overlay planes + * need to do. + */ + ret = drm_universal_plane_init(dev, plane, 1, &hibmc_plane_funcs, + channel_formats1, + ARRAY_SIZE(channel_formats1), + DRM_PLANE_TYPE_PRIMARY, + NULL); + if (ret) { + DRM_ERROR("failed to init plane: %d\n", ret); + return ERR_PTR(ret); + } + + drm_plane_helper_add(plane, &hibmc_plane_helper_funcs); + return plane; +} + +static void hibmc_crtc_enable(struct drm_crtc *crtc) +{ + unsigned int reg; + struct hibmc_drm_private *priv = crtc->dev->dev_private; + + hibmc_set_power_mode(priv, HIBMC_PW_MODE_CTL_MODE_MODE0); + + /* Enable display power gate & LOCALMEM power gate*/ + reg = readl(priv->mmio + HIBMC_CURRENT_GATE); + reg &= ~HIBMC_CURR_GATE_LOCALMEM_MASK; + reg &= ~HIBMC_CURR_GATE_DISPLAY_MASK; + reg |= HIBMC_CURR_GATE_LOCALMEM(1); + reg |= HIBMC_CURR_GATE_DISPLAY(1); + hibmc_set_current_gate(priv, reg); + drm_crtc_vblank_on(crtc); +} + +static void hibmc_crtc_disable(struct drm_crtc *crtc) +{ + unsigned int reg; + struct hibmc_drm_private *priv = crtc->dev->dev_private; + + drm_crtc_vblank_off(crtc); + + hibmc_set_power_mode(priv, HIBMC_PW_MODE_CTL_MODE_SLEEP); + + /* Enable display power gate & LOCALMEM power gate*/ + reg = readl(priv->mmio + HIBMC_CURRENT_GATE); + reg &= ~HIBMC_CURR_GATE_LOCALMEM_MASK; + reg &= ~HIBMC_CURR_GATE_DISPLAY_MASK; + reg |= HIBMC_CURR_GATE_LOCALMEM(0); + reg |= HIBMC_CURR_GATE_DISPLAY(0); + hibmc_set_current_gate(priv, reg); +} + +static unsigned int format_pll_reg(void) +{ + unsigned int pllreg = 0; + struct hibmc_display_panel_pll pll = {0}; + + /* + * Note that all PLL's have the same format. Here, + * we just use Panel PLL parameter to work out the bit + * fields in the register.On returning a 32 bit number, the value can + * be applied to any PLL in the calling function. + */ + pllreg |= HIBMC_FIELD(HIBMC_PLL_CTRL_BYPASS, 0); + pllreg |= HIBMC_FIELD(HIBMC_PLL_CTRL_POWER, 1); + pllreg |= HIBMC_FIELD(HIBMC_PLL_CTRL_INPUT, 0); + pllreg |= HIBMC_FIELD(HIBMC_PLL_CTRL_POD, pll.POD); + pllreg |= HIBMC_FIELD(HIBMC_PLL_CTRL_OD, pll.OD); + pllreg |= HIBMC_FIELD(HIBMC_PLL_CTRL_N, pll.N); + pllreg |= HIBMC_FIELD(HIBMC_PLL_CTRL_M, pll.M); + + return pllreg; +} + +static void set_vclock_hisilicon(struct drm_device *dev, unsigned long pll) +{ + u32 val; + struct hibmc_drm_private *priv = dev->dev_private; + + val = readl(priv->mmio + CRT_PLL1_HS); + val &= ~(CRT_PLL1_HS_OUTER_BYPASS(1)); + writel(val, priv->mmio + CRT_PLL1_HS); + + val = CRT_PLL1_HS_INTER_BYPASS(1) | CRT_PLL1_HS_POWERON(1); + writel(val, priv->mmio + CRT_PLL1_HS); + + writel(pll, priv->mmio + CRT_PLL1_HS); + + usleep_range(1000, 2000); + + val = pll & ~(CRT_PLL1_HS_POWERON(1)); + writel(val, priv->mmio + CRT_PLL1_HS); + + usleep_range(1000, 2000); + + val &= ~(CRT_PLL1_HS_INTER_BYPASS(1)); + writel(val, priv->mmio + CRT_PLL1_HS); + + usleep_range(1000, 2000); + + val |= CRT_PLL1_HS_OUTER_BYPASS(1); + writel(val, priv->mmio + CRT_PLL1_HS); +} + +static void get_pll_config(unsigned long x, unsigned long y, + u32 *pll1, u32 *pll2) +{ + int i; + int count = ARRAY_SIZE(hibmc_pll_table); + + for (i = 0; i < count; i++) { + if (hibmc_pll_table[i].hdisplay == x && + hibmc_pll_table[i].vdisplay == y) { + *pll1 = hibmc_pll_table[i].pll1_config_value; + *pll2 = hibmc_pll_table[i].pll2_config_value; + return; + } + } + + /* if found none, we use default value */ + *pll1 = CRT_PLL1_HS_25MHZ; + *pll2 = CRT_PLL2_HS_25MHZ; +} + +/* + * This function takes care the extra registers and bit fields required to + * setup a mode in board. + * Explanation about Display Control register: + * FPGA only supports 7 predefined pixel clocks, and clock select is + * in bit 4:0 of new register 0x802a8. + */ +static unsigned int display_ctrl_adjust(struct drm_device *dev, + struct drm_display_mode *mode, + unsigned int ctrl) +{ + unsigned long x, y; + u32 pll1; /* bit[31:0] of PLL */ + u32 pll2; /* bit[63:32] of PLL */ + struct hibmc_drm_private *priv = dev->dev_private; + + x = mode->hdisplay; + y = mode->vdisplay; + + get_pll_config(x, y, &pll1, &pll2); + writel(pll2, priv->mmio + CRT_PLL2_HS); + set_vclock_hisilicon(dev, pll1); + + /* + * Hisilicon has to set up the top-left and bottom-right + * registers as well. + * Note that normal chip only use those two register for + * auto-centering mode. + */ + writel(HIBMC_FIELD(HIBMC_CRT_AUTO_CENTERING_TL_TOP, 0) | + HIBMC_FIELD(HIBMC_CRT_AUTO_CENTERING_TL_LEFT, 0), + priv->mmio + HIBMC_CRT_AUTO_CENTERING_TL); + + writel(HIBMC_FIELD(HIBMC_CRT_AUTO_CENTERING_BR_BOTTOM, y - 1) | + HIBMC_FIELD(HIBMC_CRT_AUTO_CENTERING_BR_RIGHT, x - 1), + priv->mmio + HIBMC_CRT_AUTO_CENTERING_BR); + + /* + * Assume common fields in ctrl have been properly set before + * calling this function. + * This function only sets the extra fields in ctrl. + */ + + /* Set bit 25 of display controller: Select CRT or VGA clock */ + ctrl &= ~HIBMC_CRT_DISP_CTL_CRTSELECT_MASK; + ctrl &= ~HIBMC_CRT_DISP_CTL_CLOCK_PHASE_MASK; + + ctrl |= HIBMC_CRT_DISP_CTL_CRTSELECT(HIBMC_CRTSELECT_CRT); + + /* clock_phase_polarity is 0 */ + ctrl |= HIBMC_CRT_DISP_CTL_CLOCK_PHASE(0); + + writel(ctrl, priv->mmio + HIBMC_CRT_DISP_CTL); + + return ctrl; +} + +static void hibmc_crtc_mode_set_nofb(struct drm_crtc *crtc) +{ + unsigned int val; + struct drm_display_mode *mode = &crtc->state->mode; + struct drm_device *dev = crtc->dev; + struct hibmc_drm_private *priv = dev->dev_private; + int width = mode->hsync_end - mode->hsync_start; + int height = mode->vsync_end - mode->vsync_start; + + writel(format_pll_reg(), priv->mmio + HIBMC_CRT_PLL_CTRL); + writel(HIBMC_FIELD(HIBMC_CRT_HORZ_TOTAL_TOTAL, mode->htotal - 1) | + HIBMC_FIELD(HIBMC_CRT_HORZ_TOTAL_DISP_END, mode->hdisplay - 1), + priv->mmio + HIBMC_CRT_HORZ_TOTAL); + + writel(HIBMC_FIELD(HIBMC_CRT_HORZ_SYNC_WIDTH, width) | + HIBMC_FIELD(HIBMC_CRT_HORZ_SYNC_START, mode->hsync_start - 1), + priv->mmio + HIBMC_CRT_HORZ_SYNC); + + writel(HIBMC_FIELD(HIBMC_CRT_VERT_TOTAL_TOTAL, mode->vtotal - 1) | + HIBMC_FIELD(HIBMC_CRT_VERT_TOTAL_DISP_END, mode->vdisplay - 1), + priv->mmio + HIBMC_CRT_VERT_TOTAL); + + writel(HIBMC_FIELD(HIBMC_CRT_VERT_SYNC_HEIGHT, height) | + HIBMC_FIELD(HIBMC_CRT_VERT_SYNC_START, mode->vsync_start - 1), + priv->mmio + HIBMC_CRT_VERT_SYNC); + + val = HIBMC_FIELD(HIBMC_CRT_DISP_CTL_VSYNC_PHASE, 0); + val |= HIBMC_FIELD(HIBMC_CRT_DISP_CTL_HSYNC_PHASE, 0); + val |= HIBMC_CRT_DISP_CTL_TIMING(1); + val |= HIBMC_CRT_DISP_CTL_PLANE(1); + + display_ctrl_adjust(dev, mode, val); +} + +static void hibmc_crtc_atomic_begin(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + unsigned int reg; + struct drm_device *dev = crtc->dev; + struct hibmc_drm_private *priv = dev->dev_private; + + hibmc_set_power_mode(priv, HIBMC_PW_MODE_CTL_MODE_MODE0); + + /* Enable display power gate & LOCALMEM power gate*/ + reg = readl(priv->mmio + HIBMC_CURRENT_GATE); + reg &= ~HIBMC_CURR_GATE_DISPLAY_MASK; + reg &= ~HIBMC_CURR_GATE_LOCALMEM_MASK; + reg |= HIBMC_CURR_GATE_DISPLAY(1); + reg |= HIBMC_CURR_GATE_LOCALMEM(1); + hibmc_set_current_gate(priv, reg); + + /* We can add more initialization as needed. */ +} + +static void hibmc_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) + +{ + unsigned long flags; + + spin_lock_irqsave(&crtc->dev->event_lock, flags); + if (crtc->state->event) + drm_crtc_send_vblank_event(crtc, crtc->state->event); + crtc->state->event = NULL; + spin_unlock_irqrestore(&crtc->dev->event_lock, flags); +} + +static const struct drm_crtc_funcs hibmc_crtc_funcs = { + .page_flip = drm_atomic_helper_page_flip, + .set_config = drm_atomic_helper_set_config, + .destroy = drm_crtc_cleanup, + .reset = drm_atomic_helper_crtc_reset, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, +}; + +static const struct drm_crtc_helper_funcs hibmc_crtc_helper_funcs = { + .enable = hibmc_crtc_enable, + .disable = hibmc_crtc_disable, + .mode_set_nofb = hibmc_crtc_mode_set_nofb, + .atomic_begin = hibmc_crtc_atomic_begin, + .atomic_flush = hibmc_crtc_atomic_flush, +}; + +int hibmc_de_init(struct hibmc_drm_private *priv) +{ + struct drm_device *dev = priv->dev; + struct drm_crtc *crtc; + struct drm_plane *plane; + int ret; + + plane = hibmc_plane_init(priv); + if (IS_ERR(plane)) { + DRM_ERROR("failed to create plane: %ld\n", PTR_ERR(plane)); + return PTR_ERR(plane); + } + + crtc = devm_kzalloc(dev->dev, sizeof(*crtc), GFP_KERNEL); + if (!crtc) { + DRM_ERROR("failed to alloc memory when init crtc\n"); + return -ENOMEM; + } + + ret = drm_crtc_init_with_planes(dev, crtc, plane, + NULL, &hibmc_crtc_funcs, NULL); + if (ret) { + DRM_ERROR("failed to init crtc: %d\n", ret); + return ret; + } + + ret = drm_mode_crtc_set_gamma_size(crtc, 256); + if (ret) { + DRM_ERROR("failed to set gamma size: %d\n", ret); + return ret; + } + drm_crtc_helper_add(crtc, &hibmc_crtc_helper_funcs); + + return 0; +} diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index 4b52b29a0206..9de3564a4caf 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -19,6 +19,9 @@ #include #include +#include +#include + #include "hibmc_drm_drv.h" #include "hibmc_drm_regs.h" @@ -44,7 +47,8 @@ static void hibmc_disable_vblank(struct drm_device *dev, unsigned int pipe) } static struct drm_driver hibmc_driver = { - .driver_features = DRIVER_GEM, + .driver_features = DRIVER_GEM | DRIVER_MODESET | + DRIVER_ATOMIC, .fops = &hibmc_fops, .name = "hibmc", .date = "20160828", @@ -62,11 +66,31 @@ static struct drm_driver hibmc_driver = { static int hibmc_pm_suspend(struct device *dev) { + struct pci_dev *pdev = to_pci_dev(dev); + struct drm_device *drm_dev = pci_get_drvdata(pdev); + struct hibmc_drm_private *priv = drm_dev->dev_private; + + drm_kms_helper_poll_disable(drm_dev); + priv->suspend_state = drm_atomic_helper_suspend(drm_dev); + if (IS_ERR(priv->suspend_state)) { + DRM_ERROR("drm_atomic_helper_suspend failed: %ld\n", + PTR_ERR(priv->suspend_state)); + drm_kms_helper_poll_enable(drm_dev); + return PTR_ERR(priv->suspend_state); + } + return 0; } static int hibmc_pm_resume(struct device *dev) { + struct pci_dev *pdev = to_pci_dev(dev); + struct drm_device *drm_dev = pci_get_drvdata(pdev); + struct hibmc_drm_private *priv = drm_dev->dev_private; + + drm_atomic_helper_resume(drm_dev, priv->suspend_state); + drm_kms_helper_poll_enable(drm_dev); + return 0; } @@ -75,6 +99,41 @@ static const struct dev_pm_ops hibmc_pm_ops = { hibmc_pm_resume) }; +static int hibmc_kms_init(struct hibmc_drm_private *priv) +{ + int ret; + + drm_mode_config_init(priv->dev); + priv->mode_config_initialized = true; + + priv->dev->mode_config.min_width = 0; + priv->dev->mode_config.min_height = 0; + priv->dev->mode_config.max_width = 1920; + priv->dev->mode_config.max_height = 1440; + + priv->dev->mode_config.fb_base = priv->fb_base; + priv->dev->mode_config.preferred_depth = 24; + priv->dev->mode_config.prefer_shadow = 0; + + priv->dev->mode_config.funcs = (void *)&hibmc_mode_funcs; + + ret = hibmc_de_init(priv); + if (ret) { + DRM_ERROR("failed to init de: %d\n", ret); + return ret; + } + + return 0; +} + +static void hibmc_kms_fini(struct hibmc_drm_private *priv) +{ + if (priv->mode_config_initialized) { + drm_mode_config_cleanup(priv->dev); + priv->mode_config_initialized = false; + } +} + /* * It can operate in one of three modes: 0, 1 or Sleep. */ @@ -203,6 +262,7 @@ static int hibmc_unload(struct drm_device *dev) struct hibmc_drm_private *priv = dev->dev_private; hibmc_fbdev_fini(priv); + hibmc_kms_fini(priv); hibmc_mm_fini(priv); dev->dev_private = NULL; return 0; @@ -229,6 +289,13 @@ static int hibmc_load(struct drm_device *dev) if (ret) goto err; + ret = hibmc_kms_init(priv); + if (ret) + goto err; + + /* reset all the states of crtc/plane/encoder/connector */ + drm_mode_config_reset(dev); + ret = hibmc_fbdev_init(priv); if (ret) { DRM_ERROR("failed to initialize fbdev: %d\n", ret); diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h index d283d663371e..87af1eb348fc 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h @@ -20,6 +20,7 @@ #define HIBMC_DRM_DRV_H #include +#include #include #include #include @@ -44,6 +45,8 @@ struct hibmc_drm_private { /* drm */ struct drm_device *dev; + bool mode_config_initialized; + struct drm_atomic_state *suspend_state; /* ttm */ struct drm_global_reference mem_global_ref; @@ -82,6 +85,7 @@ void hibmc_set_power_mode(struct hibmc_drm_private *priv, void hibmc_set_current_gate(struct hibmc_drm_private *priv, unsigned int gate); +int hibmc_de_init(struct hibmc_drm_private *priv); int hibmc_fbdev_init(struct hibmc_drm_private *priv); void hibmc_fbdev_fini(struct hibmc_drm_private *priv); @@ -103,4 +107,6 @@ int hibmc_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev, u32 handle, u64 *offset); int hibmc_mmap(struct file *filp, struct vm_area_struct *vma); +extern const struct drm_mode_config_funcs hibmc_mode_funcs; + #endif diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c index 3ff65f4f5620..e76abf61edae 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c @@ -550,3 +550,9 @@ hibmc_user_framebuffer_create(struct drm_device *dev, } return &hibmc_fb->fb; } + +const struct drm_mode_config_funcs hibmc_mode_funcs = { + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, + .fb_create = hibmc_user_framebuffer_create, +}; -- 2.30.2