+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2015 MediaTek Inc.
- * Author: CK Hu <ck.hu@mediatek.com>
- */
-
-#include <drm/drm_atomic.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_atomic_uapi.h>
-#include <drm/drm_blend.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_framebuffer.h>
-#include <drm/drm_gem_atomic_helper.h>
-#include <linux/align.h>
-
-#include "mtk_crtc.h"
-#include "mtk_ddp_comp.h"
-#include "mtk_drm_drv.h"
-#include "mtk_drm_gem.h"
-#include "mtk_plane.h"
-
-static const u64 modifiers[] = {
- DRM_FORMAT_MOD_LINEAR,
- DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
- AFBC_FORMAT_MOD_SPLIT |
- AFBC_FORMAT_MOD_SPARSE),
- DRM_FORMAT_MOD_INVALID,
-};
-
-static void mtk_plane_reset(struct drm_plane *plane)
-{
- struct mtk_plane_state *state;
-
- if (plane->state) {
- __drm_atomic_helper_plane_destroy_state(plane->state);
-
- state = to_mtk_plane_state(plane->state);
- memset(state, 0, sizeof(*state));
- } else {
- state = kzalloc(sizeof(*state), GFP_KERNEL);
- if (!state)
- return;
- }
-
- __drm_atomic_helper_plane_reset(plane, &state->base);
-
- state->base.plane = plane;
- state->pending.format = DRM_FORMAT_RGB565;
- state->pending.modifier = DRM_FORMAT_MOD_LINEAR;
-}
-
-static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
-{
- struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
- struct mtk_plane_state *state;
-
- state = kmalloc(sizeof(*state), GFP_KERNEL);
- if (!state)
- return NULL;
-
- __drm_atomic_helper_plane_duplicate_state(plane, &state->base);
-
- WARN_ON(state->base.plane != plane);
-
- state->pending = old_state->pending;
-
- return &state->base;
-}
-
-static bool mtk_plane_format_mod_supported(struct drm_plane *plane,
- uint32_t format,
- uint64_t modifier)
-{
- if (modifier == DRM_FORMAT_MOD_LINEAR)
- return true;
-
- if (modifier != DRM_FORMAT_MOD_ARM_AFBC(
- AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
- AFBC_FORMAT_MOD_SPLIT |
- AFBC_FORMAT_MOD_SPARSE))
- return false;
-
- if (format != DRM_FORMAT_XRGB8888 &&
- format != DRM_FORMAT_ARGB8888 &&
- format != DRM_FORMAT_BGRX8888 &&
- format != DRM_FORMAT_BGRA8888 &&
- format != DRM_FORMAT_ABGR8888 &&
- format != DRM_FORMAT_XBGR8888 &&
- format != DRM_FORMAT_RGB888 &&
- format != DRM_FORMAT_BGR888)
- return false;
-
- return true;
-}
-
-static void mtk_plane_destroy_state(struct drm_plane *plane,
- struct drm_plane_state *state)
-{
- __drm_atomic_helper_plane_destroy_state(state);
- kfree(to_mtk_plane_state(state));
-}
-
-static int mtk_plane_atomic_async_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 drm_crtc_state *crtc_state;
- int ret;
-
- if (plane != new_plane_state->crtc->cursor)
- return -EINVAL;
-
- if (!plane->state)
- return -EINVAL;
-
- if (!plane->state->fb)
- return -EINVAL;
-
- ret = mtk_crtc_plane_check(new_plane_state->crtc, plane,
- to_mtk_plane_state(new_plane_state));
- if (ret)
- return ret;
-
- crtc_state = drm_atomic_get_existing_crtc_state(state, new_plane_state->crtc);
-
- return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
- DRM_PLANE_NO_SCALING,
- DRM_PLANE_NO_SCALING,
- true, true);
-}
-
-static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
- struct mtk_plane_state *mtk_plane_state)
-{
- struct drm_framebuffer *fb = new_state->fb;
- struct drm_gem_object *gem;
- struct mtk_gem_obj *mtk_gem;
- unsigned int pitch, format;
- u64 modifier;
- dma_addr_t addr;
- dma_addr_t hdr_addr = 0;
- unsigned int hdr_pitch = 0;
- int offset;
-
- gem = fb->obj[0];
- mtk_gem = to_mtk_gem_obj(gem);
- addr = mtk_gem->dma_addr;
- pitch = fb->pitches[0];
- format = fb->format->format;
- modifier = fb->modifier;
-
- if (modifier == DRM_FORMAT_MOD_LINEAR) {
- /*
- * Using dma_addr_t variable to calculate with multiplier of different types,
- * for example: addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
- * may cause coverity issue with unintentional overflow.
- */
- offset = (new_state->src.x1 >> 16) * fb->format->cpp[0];
- addr += offset;
- offset = (new_state->src.y1 >> 16) * pitch;
- addr += offset;
- } else {
- int width_in_blocks = ALIGN(fb->width, AFBC_DATA_BLOCK_WIDTH)
- / AFBC_DATA_BLOCK_WIDTH;
- int height_in_blocks = ALIGN(fb->height, AFBC_DATA_BLOCK_HEIGHT)
- / AFBC_DATA_BLOCK_HEIGHT;
- int x_offset_in_blocks = (new_state->src.x1 >> 16) / AFBC_DATA_BLOCK_WIDTH;
- int y_offset_in_blocks = (new_state->src.y1 >> 16) / AFBC_DATA_BLOCK_HEIGHT;
- int hdr_size, hdr_offset;
-
- hdr_pitch = width_in_blocks * AFBC_HEADER_BLOCK_SIZE;
- pitch = width_in_blocks * AFBC_DATA_BLOCK_WIDTH *
- AFBC_DATA_BLOCK_HEIGHT * fb->format->cpp[0];
-
- hdr_size = ALIGN(hdr_pitch * height_in_blocks, AFBC_HEADER_ALIGNMENT);
- hdr_offset = hdr_pitch * y_offset_in_blocks +
- AFBC_HEADER_BLOCK_SIZE * x_offset_in_blocks;
-
- /*
- * Using dma_addr_t variable to calculate with multiplier of different types,
- * for example: addr += hdr_pitch * y_offset_in_blocks;
- * may cause coverity issue with unintentional overflow.
- */
- hdr_addr = addr + hdr_offset;
-
- /* The data plane is offset by 1 additional block. */
- offset = pitch * y_offset_in_blocks +
- AFBC_DATA_BLOCK_WIDTH * AFBC_DATA_BLOCK_HEIGHT *
- fb->format->cpp[0] * (x_offset_in_blocks + 1);
-
- /*
- * Using dma_addr_t variable to calculate with multiplier of different types,
- * for example: addr += pitch * y_offset_in_blocks;
- * may cause coverity issue with unintentional overflow.
- */
- addr = addr + hdr_size + offset;
- }
-
- mtk_plane_state->pending.enable = true;
- mtk_plane_state->pending.pitch = pitch;
- mtk_plane_state->pending.hdr_pitch = hdr_pitch;
- mtk_plane_state->pending.format = format;
- mtk_plane_state->pending.modifier = modifier;
- mtk_plane_state->pending.addr = addr;
- mtk_plane_state->pending.hdr_addr = hdr_addr;
- mtk_plane_state->pending.x = new_state->dst.x1;
- mtk_plane_state->pending.y = new_state->dst.y1;
- mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
- mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
- mtk_plane_state->pending.rotation = new_state->rotation;
- mtk_plane_state->pending.color_encoding = new_state->color_encoding;
-}
-
-static void mtk_plane_atomic_async_update(struct drm_plane *plane,
- struct drm_atomic_state *state)
-{
- struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
- plane);
- struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);
-
- plane->state->crtc_x = new_state->crtc_x;
- plane->state->crtc_y = new_state->crtc_y;
- plane->state->crtc_h = new_state->crtc_h;
- plane->state->crtc_w = new_state->crtc_w;
- plane->state->src_x = new_state->src_x;
- plane->state->src_y = new_state->src_y;
- plane->state->src_h = new_state->src_h;
- plane->state->src_w = new_state->src_w;
-
- mtk_plane_update_new_state(new_state, new_plane_state);
- swap(plane->state->fb, new_state->fb);
- wmb(); /* Make sure the above parameters are set before update */
- new_plane_state->pending.async_dirty = true;
- mtk_crtc_async_update(new_state->crtc, plane, state);
-}
-
-static const struct drm_plane_funcs mtk_plane_funcs = {
- .update_plane = drm_atomic_helper_update_plane,
- .disable_plane = drm_atomic_helper_disable_plane,
- .destroy = drm_plane_cleanup,
- .reset = mtk_plane_reset,
- .atomic_duplicate_state = mtk_plane_duplicate_state,
- .atomic_destroy_state = mtk_plane_destroy_state,
- .format_mod_supported = mtk_plane_format_mod_supported,
-};
-
-static int mtk_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 drm_framebuffer *fb = new_plane_state->fb;
- struct drm_crtc_state *crtc_state;
- int ret;
-
- if (!fb)
- return 0;
-
- if (WARN_ON(!new_plane_state->crtc))
- return 0;
-
- ret = mtk_crtc_plane_check(new_plane_state->crtc, plane,
- to_mtk_plane_state(new_plane_state));
- if (ret)
- return ret;
-
- crtc_state = drm_atomic_get_crtc_state(state,
- new_plane_state->crtc);
- if (IS_ERR(crtc_state))
- return PTR_ERR(crtc_state);
-
- return drm_atomic_helper_check_plane_state(new_plane_state,
- crtc_state,
- DRM_PLANE_NO_SCALING,
- DRM_PLANE_NO_SCALING,
- true, true);
-}
-
-static void mtk_plane_atomic_disable(struct drm_plane *plane,
- struct drm_atomic_state *state)
-{
- struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
- plane);
- struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
- mtk_plane_state->pending.enable = false;
- wmb(); /* Make sure the above parameter is set before update */
- mtk_plane_state->pending.dirty = true;
-}
-
-static void mtk_plane_atomic_update(struct drm_plane *plane,
- struct drm_atomic_state *state)
-{
- struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
- plane);
- struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
-
- if (!new_state->crtc || WARN_ON(!new_state->fb))
- return;
-
- if (!new_state->visible) {
- mtk_plane_atomic_disable(plane, state);
- return;
- }
-
- mtk_plane_update_new_state(new_state, mtk_plane_state);
- wmb(); /* Make sure the above parameters are set before update */
- mtk_plane_state->pending.dirty = true;
-}
-
-static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
- .atomic_check = mtk_plane_atomic_check,
- .atomic_update = mtk_plane_atomic_update,
- .atomic_disable = mtk_plane_atomic_disable,
- .atomic_async_update = mtk_plane_atomic_async_update,
- .atomic_async_check = mtk_plane_atomic_async_check,
-};
-
-int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
- unsigned long possible_crtcs, enum drm_plane_type type,
- unsigned int supported_rotations, const u32 *formats,
- size_t num_formats)
-{
- int err;
-
- if (!formats || !num_formats) {
- DRM_ERROR("no formats for plane\n");
- return -EINVAL;
- }
-
- err = drm_universal_plane_init(dev, plane, possible_crtcs,
- &mtk_plane_funcs, formats,
- num_formats, modifiers, type, NULL);
- if (err) {
- DRM_ERROR("failed to initialize plane\n");
- return err;
- }
-
- if (supported_rotations & ~DRM_MODE_ROTATE_0) {
- err = drm_plane_create_rotation_property(plane,
- DRM_MODE_ROTATE_0,
- supported_rotations);
- if (err)
- DRM_INFO("Create rotation property failed\n");
- }
-
- drm_plane_helper_add(plane, &mtk_plane_helper_funcs);
-
- return 0;
-}
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author: CK Hu <ck.hu@mediatek.com>
+ */
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_atomic_uapi.h>
+#include <drm/drm_blend.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_gem_atomic_helper.h>
+#include <linux/align.h>
+
+#include "mtk_crtc.h"
+#include "mtk_ddp_comp.h"
+#include "mtk_drm_drv.h"
+#include "mtk_drm_gem.h"
+#include "mtk_plane.h"
+
+static const u64 modifiers[] = {
+ DRM_FORMAT_MOD_LINEAR,
+ DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+ AFBC_FORMAT_MOD_SPLIT |
+ AFBC_FORMAT_MOD_SPARSE),
+ DRM_FORMAT_MOD_INVALID,
+};
+
+static void mtk_plane_reset(struct drm_plane *plane)
+{
+ struct mtk_plane_state *state;
+
+ if (plane->state) {
+ __drm_atomic_helper_plane_destroy_state(plane->state);
+
+ state = to_mtk_plane_state(plane->state);
+ memset(state, 0, sizeof(*state));
+ } else {
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return;
+ }
+
+ __drm_atomic_helper_plane_reset(plane, &state->base);
+
+ state->base.plane = plane;
+ state->pending.format = DRM_FORMAT_RGB565;
+ state->pending.modifier = DRM_FORMAT_MOD_LINEAR;
+}
+
+static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
+{
+ struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
+ struct mtk_plane_state *state;
+
+ state = kmalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ __drm_atomic_helper_plane_duplicate_state(plane, &state->base);
+
+ WARN_ON(state->base.plane != plane);
+
+ state->pending = old_state->pending;
+
+ return &state->base;
+}
+
+static bool mtk_plane_format_mod_supported(struct drm_plane *plane,
+ uint32_t format,
+ uint64_t modifier)
+{
+ if (modifier == DRM_FORMAT_MOD_LINEAR)
+ return true;
+
+ if (modifier != DRM_FORMAT_MOD_ARM_AFBC(
+ AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+ AFBC_FORMAT_MOD_SPLIT |
+ AFBC_FORMAT_MOD_SPARSE))
+ return false;
+
+ if (format != DRM_FORMAT_XRGB8888 &&
+ format != DRM_FORMAT_ARGB8888 &&
+ format != DRM_FORMAT_BGRX8888 &&
+ format != DRM_FORMAT_BGRA8888 &&
+ format != DRM_FORMAT_ABGR8888 &&
+ format != DRM_FORMAT_XBGR8888 &&
+ format != DRM_FORMAT_RGB888 &&
+ format != DRM_FORMAT_BGR888)
+ return false;
+
+ return true;
+}
+
+static void mtk_plane_destroy_state(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ __drm_atomic_helper_plane_destroy_state(state);
+ kfree(to_mtk_plane_state(state));
+}
+
+static int mtk_plane_atomic_async_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 drm_crtc_state *crtc_state;
+ int ret;
+
+ if (plane != new_plane_state->crtc->cursor)
+ return -EINVAL;
+
+ if (!plane->state)
+ return -EINVAL;
+
+ if (!plane->state->fb)
+ return -EINVAL;
+
+ ret = mtk_crtc_plane_check(new_plane_state->crtc, plane,
+ to_mtk_plane_state(new_plane_state));
+ if (ret)
+ return ret;
+
+ crtc_state = drm_atomic_get_existing_crtc_state(state, new_plane_state->crtc);
+
+ return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
+ DRM_PLANE_NO_SCALING,
+ DRM_PLANE_NO_SCALING,
+ true, true);
+}
+
+static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
+ struct mtk_plane_state *mtk_plane_state)
+{
+ struct drm_framebuffer *fb = new_state->fb;
+ struct drm_gem_object *gem;
+ struct mtk_gem_obj *mtk_gem;
+ unsigned int pitch, format;
+ u64 modifier;
+ dma_addr_t addr;
+ dma_addr_t hdr_addr = 0;
+ unsigned int hdr_pitch = 0;
+ int offset;
+
+ gem = fb->obj[0];
+ mtk_gem = to_mtk_gem_obj(gem);
+ addr = mtk_gem->dma_addr;
+ pitch = fb->pitches[0];
+ format = fb->format->format;
+ modifier = fb->modifier;
+
+ if (modifier == DRM_FORMAT_MOD_LINEAR) {
+ /*
+ * Using dma_addr_t variable to calculate with multiplier of different types,
+ * for example: addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
+ * may cause coverity issue with unintentional overflow.
+ */
+ offset = (new_state->src.x1 >> 16) * fb->format->cpp[0];
+ addr += offset;
+ offset = (new_state->src.y1 >> 16) * pitch;
+ addr += offset;
+ } else {
+ int width_in_blocks = ALIGN(fb->width, AFBC_DATA_BLOCK_WIDTH)
+ / AFBC_DATA_BLOCK_WIDTH;
+ int height_in_blocks = ALIGN(fb->height, AFBC_DATA_BLOCK_HEIGHT)
+ / AFBC_DATA_BLOCK_HEIGHT;
+ int x_offset_in_blocks = (new_state->src.x1 >> 16) / AFBC_DATA_BLOCK_WIDTH;
+ int y_offset_in_blocks = (new_state->src.y1 >> 16) / AFBC_DATA_BLOCK_HEIGHT;
+ int hdr_size, hdr_offset;
+
+ hdr_pitch = width_in_blocks * AFBC_HEADER_BLOCK_SIZE;
+ pitch = width_in_blocks * AFBC_DATA_BLOCK_WIDTH *
+ AFBC_DATA_BLOCK_HEIGHT * fb->format->cpp[0];
+
+ hdr_size = ALIGN(hdr_pitch * height_in_blocks, AFBC_HEADER_ALIGNMENT);
+ hdr_offset = hdr_pitch * y_offset_in_blocks +
+ AFBC_HEADER_BLOCK_SIZE * x_offset_in_blocks;
+
+ /*
+ * Using dma_addr_t variable to calculate with multiplier of different types,
+ * for example: addr += hdr_pitch * y_offset_in_blocks;
+ * may cause coverity issue with unintentional overflow.
+ */
+ hdr_addr = addr + hdr_offset;
+
+ /* The data plane is offset by 1 additional block. */
+ offset = pitch * y_offset_in_blocks +
+ AFBC_DATA_BLOCK_WIDTH * AFBC_DATA_BLOCK_HEIGHT *
+ fb->format->cpp[0] * (x_offset_in_blocks + 1);
+
+ /*
+ * Using dma_addr_t variable to calculate with multiplier of different types,
+ * for example: addr += pitch * y_offset_in_blocks;
+ * may cause coverity issue with unintentional overflow.
+ */
+ addr = addr + hdr_size + offset;
+ }
+
+ mtk_plane_state->pending.enable = true;
+ mtk_plane_state->pending.pitch = pitch;
+ mtk_plane_state->pending.hdr_pitch = hdr_pitch;
+ mtk_plane_state->pending.format = format;
+ mtk_plane_state->pending.modifier = modifier;
+ mtk_plane_state->pending.addr = addr;
+ mtk_plane_state->pending.hdr_addr = hdr_addr;
+ mtk_plane_state->pending.x = new_state->dst.x1;
+ mtk_plane_state->pending.y = new_state->dst.y1;
+ mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
+ mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
+ mtk_plane_state->pending.rotation = new_state->rotation;
+ mtk_plane_state->pending.color_encoding = new_state->color_encoding;
+}
+
+static void mtk_plane_atomic_async_update(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+ plane);
+ struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);
+
+ plane->state->crtc_x = new_state->crtc_x;
+ plane->state->crtc_y = new_state->crtc_y;
+ plane->state->crtc_h = new_state->crtc_h;
+ plane->state->crtc_w = new_state->crtc_w;
+ plane->state->src_x = new_state->src_x;
+ plane->state->src_y = new_state->src_y;
+ plane->state->src_h = new_state->src_h;
+ plane->state->src_w = new_state->src_w;
+
+ mtk_plane_update_new_state(new_state, new_plane_state);
+ swap(plane->state->fb, new_state->fb);
+ wmb(); /* Make sure the above parameters are set before update */
+ new_plane_state->pending.async_dirty = true;
+ mtk_crtc_async_update(new_state->crtc, plane, state);
+}
+
+static const struct drm_plane_funcs mtk_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_plane_cleanup,
+ .reset = mtk_plane_reset,
+ .atomic_duplicate_state = mtk_plane_duplicate_state,
+ .atomic_destroy_state = mtk_plane_destroy_state,
+ .format_mod_supported = mtk_plane_format_mod_supported,
+};
+
+static int mtk_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 drm_framebuffer *fb = new_plane_state->fb;
+ struct drm_crtc_state *crtc_state;
+ int ret;
+
+ if (!fb)
+ return 0;
+
+ if (WARN_ON(!new_plane_state->crtc))
+ return 0;
+
+ ret = mtk_crtc_plane_check(new_plane_state->crtc, plane,
+ to_mtk_plane_state(new_plane_state));
+ if (ret)
+ return ret;
+
+ crtc_state = drm_atomic_get_crtc_state(state,
+ new_plane_state->crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ return drm_atomic_helper_check_plane_state(new_plane_state,
+ crtc_state,
+ DRM_PLANE_NO_SCALING,
+ DRM_PLANE_NO_SCALING,
+ true, true);
+}
+
+static void mtk_plane_atomic_disable(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+ plane);
+ struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
+ mtk_plane_state->pending.enable = false;
+ wmb(); /* Make sure the above parameter is set before update */
+ mtk_plane_state->pending.dirty = true;
+}
+
+static void mtk_plane_atomic_update(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+ plane);
+ struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
+
+ if (!new_state->crtc || WARN_ON(!new_state->fb))
+ return;
+
+ if (!new_state->visible) {
+ mtk_plane_atomic_disable(plane, state);
+ return;
+ }
+
+ mtk_plane_update_new_state(new_state, mtk_plane_state);
+ wmb(); /* Make sure the above parameters are set before update */
+ mtk_plane_state->pending.dirty = true;
+}
+
+static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
+ .atomic_check = mtk_plane_atomic_check,
+ .atomic_update = mtk_plane_atomic_update,
+ .atomic_disable = mtk_plane_atomic_disable,
+ .atomic_async_update = mtk_plane_atomic_async_update,
+ .atomic_async_check = mtk_plane_atomic_async_check,
+};
+
+int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
+ unsigned long possible_crtcs, enum drm_plane_type type,
+ unsigned int supported_rotations, const u32 *formats,
+ size_t num_formats)
+{
+ int err;
+
+ if (!formats || !num_formats) {
+ DRM_ERROR("no formats for plane\n");
+ return -EINVAL;
+ }
+
+ err = drm_universal_plane_init(dev, plane, possible_crtcs,
+ &mtk_plane_funcs, formats,
+ num_formats, modifiers, type, NULL);
+ if (err) {
+ DRM_ERROR("failed to initialize plane\n");
+ return err;
+ }
+
+ if (supported_rotations & ~DRM_MODE_ROTATE_0) {
+ err = drm_plane_create_rotation_property(plane,
+ DRM_MODE_ROTATE_0,
+ supported_rotations);
+ if (err)
+ DRM_INFO("Create rotation property failed\n");
+ }
+
+ drm_plane_helper_add(plane, &mtk_plane_helper_funcs);
+
+ return 0;
+}
projects / linux.git / commitdiff