Hi Sascha: On 12/5/23 17:15, Sascha Hauer wrote:
On Thu, Nov 30, 2023 at 08:24:49PM +0800, Andy Yan wrote:From: Andy Yan <andy.yan@xxxxxxxxxxxxxx> /sys/kernel/debug/dri/vop2/summary: dump vop display state /sys/kernel/debug/dri/vop2/regs: dump whole vop registers /sys/kernel/debug/dri/vop2/active_regs: only dump the registers of activated modules Signed-off-by: Andy Yan <andy.yan@xxxxxxxxxxxxxx> --- Changes in v3: - put regs dump info in vop2_data drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 268 +++++++++++++++++++ drivers/gpu/drm/rockchip/rockchip_drm_vop2.h | 11 + drivers/gpu/drm/rockchip/rockchip_vop2_reg.c | 191 +++++++++++++ 3 files changed, 470 insertions(+) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c index 6f17cc56501e..56a165c0b130 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c @@ -27,6 +27,7 @@ #include <drm/drm_debugfs.h> #include <drm/drm_flip_work.h> #include <drm/drm_framebuffer.h> +#include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_probe_helper.h> #include <drm/drm_vblank.h>@@ -187,6 +188,7 @@ struct vop2 {*/ u32 registered_num_wins;+ struct resource *res;void __iomem *regs; struct regmap *map;@@ -238,6 +240,37 @@ struct vop2 { #define vop2_output_if_is_dpi(x) ((x) == ROCKCHIP_VOP2_EP_RGB0) ++/* + * bus-format types. + */ +struct drm_bus_format_enum_list { + int type; + const char *name; +}; + +static const struct drm_bus_format_enum_list drm_bus_format_enum_list[] = { + { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, + { MEDIA_BUS_FMT_RGB565_1X16, "RGB565_1X16" }, + { MEDIA_BUS_FMT_RGB666_1X18, "RGB666_1X18" }, + { MEDIA_BUS_FMT_RGB666_1X24_CPADHI, "RGB666_1X24_CPADHI" }, + { MEDIA_BUS_FMT_RGB666_1X7X3_SPWG, "RGB666_1X7X3_SPWG" }, + { MEDIA_BUS_FMT_YUV8_1X24, "YUV8_1X24" }, + { MEDIA_BUS_FMT_UYYVYY8_0_5X24, "UYYVYY8_0_5X24" }, + { MEDIA_BUS_FMT_YUV10_1X30, "YUV10_1X30" }, + { MEDIA_BUS_FMT_UYYVYY10_0_5X30, "UYYVYY10_0_5X30" }, + { MEDIA_BUS_FMT_RGB888_3X8, "RGB888_3X8" }, + { MEDIA_BUS_FMT_RGB888_1X24, "RGB888_1X24" }, + { MEDIA_BUS_FMT_RGB888_1X7X4_SPWG, "RGB888_1X7X4_SPWG" }, + { MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA, "RGB888_1X7X4_JEIDA" }, + { MEDIA_BUS_FMT_UYVY8_2X8, "UYVY8_2X8" }, + { MEDIA_BUS_FMT_YUYV8_1X16, "YUYV8_1X16" }, + { MEDIA_BUS_FMT_UYVY8_1X16, "UYVY8_1X16" }, + { MEDIA_BUS_FMT_RGB101010_1X30, "RGB101010_1X30" }, + { MEDIA_BUS_FMT_YUYV10_1X20, "YUYV10_1X20" }, +}; +static DRM_ENUM_NAME_FN(drm_get_bus_format_name, drm_bus_format_enum_list) + static const struct regmap_config vop2_regmap_config;static struct vop2_video_port *to_vop2_video_port(struct drm_crtc *crtc)@@ -2522,6 +2555,239 @@ static const struct drm_crtc_helper_funcs vop2_crtc_helper_funcs = { .atomic_disable = vop2_crtc_atomic_disable, };+static void vop2_dump_connector_on_crtc(struct drm_crtc *crtc, struct seq_file *s)+{ + struct drm_connector_list_iter conn_iter; + struct drm_connector *connector; + + drm_connector_list_iter_begin(crtc->dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (crtc->state->connector_mask & drm_connector_mask(connector)) + seq_printf(s, " Connector: %s\n", connector->name); + + } + drm_connector_list_iter_end(&conn_iter); +} + +static int vop2_plane_state_dump(struct seq_file *s, struct drm_plane *plane) +{ + struct vop2_win *win = to_vop2_win(plane); + struct drm_plane_state *pstate = plane->state; + struct drm_rect *src, *dst; + struct drm_framebuffer *fb; + struct drm_gem_object *obj; + struct rockchip_gem_object *rk_obj; + bool xmirror; + bool ymirror; + bool rotate_270; + bool rotate_90; + dma_addr_t fb_addr; + int i; + + seq_printf(s, " %s: %s\n", win->data->name, pstate->crtc ? "ACTIVE" : "DISABLED"); + if (!pstate || !pstate->fb) + return 0;'pstate' is dereferenced before its checked being non NULL. Either the check is unnecessary or should be before the seq_printf() call.
I will move it before seq_printf.
+ + fb = pstate->fb; + src = &pstate->src; + dst = &pstate->dst; + xmirror = pstate->rotation & DRM_MODE_REFLECT_X ? true : false; + ymirror = pstate->rotation & DRM_MODE_REFLECT_Y ? true : false; + rotate_270 = pstate->rotation & DRM_MODE_ROTATE_270; + rotate_90 = pstate->rotation & DRM_MODE_ROTATE_90; + + seq_printf(s, "\twin_id: %d\n", win->win_id); + + seq_printf(s, "\tformat: %p4cc%s glb_alpha[0x%x]\n", + &fb->format->format, + drm_is_afbc(fb->modifier) ? "[AFBC]" : "", + pstate->alpha >> 8); + seq_printf(s, "\trotate: xmirror: %d ymirror: %d rotate_90: %d rotate_270: %d\n", + xmirror, ymirror, rotate_90, rotate_270); + seq_printf(s, "\tzpos: %d\n", pstate->normalized_zpos); + seq_printf(s, "\tsrc: pos[%d, %d] rect[%d x %d]\n", src->x1 >> 16, + src->y1 >> 16, drm_rect_width(src) >> 16, + drm_rect_height(src) >> 16); + seq_printf(s, "\tdst: pos[%d, %d] rect[%d x %d]\n", dst->x1, dst->y1, + drm_rect_width(dst), drm_rect_height(dst)); + + for (i = 0; i < fb->format->num_planes; i++) { + obj = fb->obj[0]; + rk_obj = to_rockchip_obj(obj); + fb_addr = rk_obj->dma_addr + fb->offsets[0];Did you really intend to use array index [0] here or should this rather be [i]? If you intended to use [0] then you could move the initialization out of the loop.
It's should use index[i]. thanks for catching this.
+ + seq_printf(s, "\tbuf[%d]: addr: %pad pitch: %d offset: %d\n", + i, &fb_addr, fb->pitches[i], fb->offsets[i]); + } + + return 0; +} + +static int vop2_crtc_state_dump(struct drm_crtc *crtc, struct seq_file *s) +{ + struct vop2_video_port *vp = to_vop2_video_port(crtc); + struct drm_crtc_state *cstate = crtc->state; + struct rockchip_crtc_state *vcstate; + struct drm_display_mode *mode; + struct drm_plane *plane; + bool interlaced; + + seq_printf(s, "Video Port%d: %s\n", vp->id, !cstate ? + "DISABLED" : cstate->active ? "ACTIVE" : "DISABLED"); + + if (!cstate || !cstate->active) + return 0; + + mode = &crtc->state->adjusted_mode; + vcstate = to_rockchip_crtc_state(cstate); + interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE); + + vop2_dump_connector_on_crtc(crtc, s); + seq_printf(s, "\tbus_format[%x]: %s\n", vcstate->bus_format, + drm_get_bus_format_name(vcstate->bus_format)); + seq_printf(s, "\toutput_mode[%x]", vcstate->output_mode); + seq_printf(s, " color_space[%d]\n", vcstate->color_space); + seq_printf(s, " Display mode: %dx%d%s%d\n", + mode->hdisplay, mode->vdisplay, interlaced ? "i" : "p", + drm_mode_vrefresh(mode)); + seq_printf(s, "\tclk[%d] real_clk[%d] type[%x] flag[%x]\n", + mode->clock, mode->crtc_clock, mode->type, mode->flags); + seq_printf(s, "\tH: %d %d %d %d\n", mode->hdisplay, mode->hsync_start, + mode->hsync_end, mode->htotal); + seq_printf(s, "\tV: %d %d %d %d\n", mode->vdisplay, mode->vsync_start, + mode->vsync_end, mode->vtotal); + + drm_atomic_crtc_for_each_plane(plane, crtc) { + vop2_plane_state_dump(s, plane); + } + + return 0; +} + +static int vop2_summary_show(struct seq_file *s, void *data) +{ + struct drm_info_node *node = s->private; + struct drm_minor *minor = node->minor; + struct drm_device *drm_dev = minor->dev; + struct drm_crtc *crtc; + + drm_modeset_lock_all(drm_dev); + drm_for_each_crtc(crtc, drm_dev) { + vop2_crtc_state_dump(crtc, s); + } + drm_modeset_unlock_all(drm_dev); + + return 0; +} + +static void vop2_regs_print(struct vop2 *vop2, struct seq_file *s, + const struct vop2_regs_dump *dump, bool active_only) +{ + resource_size_t start; + const int reg_num = 0x110 / 4;You added the number of registers to struct vop2_regs_dump, no need to hardcode this anymore.
Thanks for catching this ,will removed in next version.
+ u32 val; + int i; + + if (dump->en_mask && active_only) { + val = vop2_readl(vop2, dump->base + dump->en_reg); + if ((val & dump->en_mask) != dump->en_val) + return; + } + seq_printf(s, "\n%s:\n", dump->name); + + start = vop2->res->start + dump->base; + for (i = 0; i < reg_num;) { + seq_printf(s, "%08x: %08x %08x %08x %08x\n", (u32)start + i * 4, + vop2_readl(vop2, dump->base + (4 * i)), + vop2_readl(vop2, dump->base + (4 * (i + 1))), + vop2_readl(vop2, dump->base + (4 * (i + 2))), + vop2_readl(vop2, dump->base + (4 * (i + 3)))); + i += 4; + } +} + +static int vop2_regs_show(struct seq_file *s, void *arg) +{ + struct drm_info_node *node = s->private; + struct vop2 *vop2 = (struct vop2 *)node->info_ent->data;node->info_ent->data is a void pointer, no need to cast explicitly.
Thanks for pointing out, will drop the cast in next version.
+ struct drm_minor *minor = node->minor; + struct drm_device *drm_dev = minor->dev; + const struct vop2_regs_dump *dump; + unsigned int n = vop2->data->regs_dump_size;'n' is used only once, it might be clearer just to use the value where needed and drop the extra variable.
Okay, will do.
+ unsigned int i; + + drm_modeset_lock_all(drm_dev); + + if (vop2->enable_count) { + for (i = 0; i < n; i++) { + dump = &vop2->data->regs_dump[i]; + vop2_regs_print(vop2, s, dump, false); + } + } else { + seq_printf(s, "VOP disabled:\n");There's nothing following after the ':', right? Then this should be "VOP: disabled\n" or without the colon at all.
the colon will be droped in next versin.
+ } + drm_modeset_unlock_all(drm_dev);This code is repeated in vop2_active_regs_show() below. Maybe factor this out to a common function?
Do you mean all the code between drm_modeset_lock_all and drm_modeset_unlock_all ?
+ + return 0; +} + +static int vop2_active_regs_show(struct seq_file *s, void *data) +{ + struct drm_info_node *node = s->private; + struct vop2 *vop2 = (struct vop2 *)node->info_ent->data; + struct drm_minor *minor = node->minor; + struct drm_device *drm_dev = minor->dev; + const struct vop2_regs_dump *dump; + unsigned int n = vop2->data->regs_dump_size; + unsigned int i; + + drm_modeset_lock_all(drm_dev); + if (vop2->enable_count) { + for (i = 0; i < n; i++) { + dump = &vop2->data->regs_dump[i]; + vop2_regs_print(vop2, s, dump, true); + } + } else { + seq_printf(s, "VOP disabled:\n"); + } + drm_modeset_unlock_all(drm_dev); + + return 0; +} +Sascha
