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| author | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2021-10-08 02:23:02 +0300 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2021-10-12 03:01:24 +0300 |
| commit | be7d2d837363e2d36bc9d87b89207f1b8f5c997d (patch) | |
| tree | 1d995bee75ef02543e781394b33f81cf8b5fcef0 /drivers/gpu/drm/mediatek/mtk_drm_crtc.c | |
| parent | bdefc6b23be33add5e075fb76b97271dad4f813c (diff) | |
| download | linux-be7d2d837363e2d36bc9d87b89207f1b8f5c997d.tar.xz | |
Revert "drm/mediatek: Add cmdq_handle in mtk_crtc"
This reverts commit bc9241be73d9b2b3bcb7033598521fd669639848.
Commit c1ec54b7b5af
("drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb")
would cause numerous mtk cmdq mailbox driver warning:
WARNING: CPU: 0 PID: 0 at drivers/mailbox/mtk-cmdq-mailbox.c:198
cmdq_task_exec_done+0xb8/0xe0
So revert that patch and all the patches depend on that patch.
Reported-by: Enric Balletbo Serra <eballetbo@gmail.com>
Tested-by: Enric Balletbo Serra <eballetbo@gmail.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 9840b8d035dc..697c4dec1890 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -54,7 +54,6 @@ struct mtk_drm_crtc { #if IS_REACHABLE(CONFIG_MTK_CMDQ) struct mbox_client cmdq_cl; struct mbox_chan *cmdq_chan; - struct cmdq_pkt cmdq_handle; u32 cmdq_event; u32 cmdq_vblank_cnt; #endif @@ -227,16 +226,19 @@ struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc, } #if IS_REACHABLE(CONFIG_MTK_CMDQ) -static int mtk_drm_cmdq_pkt_create(struct mbox_chan *chan, struct cmdq_pkt *pkt, - size_t size) +static struct cmdq_pkt *mtk_drm_cmdq_pkt_create(struct mbox_chan *chan, size_t size) { + struct cmdq_pkt *pkt; struct device *dev; dma_addr_t dma_addr; + pkt = kzalloc(sizeof(*pkt), GFP_KERNEL); + if (!pkt) + return ERR_PTR(-ENOMEM); pkt->va_base = kzalloc(size, GFP_KERNEL); if (!pkt->va_base) { kfree(pkt); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } pkt->buf_size = size; @@ -247,12 +249,12 @@ static int mtk_drm_cmdq_pkt_create(struct mbox_chan *chan, struct cmdq_pkt *pkt, dev_err(dev, "dma map failed, size=%u\n", (u32)(u64)size); kfree(pkt->va_base); kfree(pkt); - return -ENOMEM; + return ERR_PTR(-ENOMEM); } pkt->pa_base = dma_addr; - return 0; + return pkt; } static void mtk_drm_cmdq_pkt_destroy(struct mbox_chan *chan, struct cmdq_pkt *pkt) @@ -475,7 +477,7 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, bool needs_vblank) { #if IS_REACHABLE(CONFIG_MTK_CMDQ) - struct cmdq_pkt *cmdq_handle = &mtk_crtc->cmdq_handle; + struct cmdq_pkt *cmdq_handle; #endif struct drm_crtc *crtc = &mtk_crtc->base; struct mtk_drm_private *priv = crtc->dev->dev_private; @@ -515,7 +517,7 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, #if IS_REACHABLE(CONFIG_MTK_CMDQ) if (mtk_crtc->cmdq_chan) { mbox_flush(mtk_crtc->cmdq_chan, 2000); - cmdq_handle->cmd_buf_size = 0; + cmdq_handle = mtk_drm_cmdq_pkt_create(mtk_crtc->cmdq_chan, PAGE_SIZE); cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event); cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false); mtk_crtc_ddp_config(crtc, cmdq_handle); @@ -910,16 +912,6 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, drm_crtc_index(&mtk_crtc->base)); mbox_free_channel(mtk_crtc->cmdq_chan); mtk_crtc->cmdq_chan = NULL; - } else { - ret = mtk_drm_cmdq_pkt_create(mtk_crtc->cmdq_chan, - &mtk_crtc->cmdq_handle, - PAGE_SIZE); - if (ret) { - dev_dbg(dev, "mtk_crtc %d failed to create cmdq packet\n", - drm_crtc_index(&mtk_crtc->base)); - mbox_free_channel(mtk_crtc->cmdq_chan); - mtk_crtc->cmdq_chan = NULL; - } } } #endif |