Hi Brian,

Sorry about the delay.

W dniu 20.01.2022 o 01:11, Brian Norris pisze:

Commit 7707f7227f09 ("drm/rockchip: Add support for afbc") switched up the rk3399_vop_big[] register windows, but it did so incorrectly.

The biggest problem is in rk3288_win23_data[] vs. rk3368_win23_data[] .format field:

RK3288's format: VOP_REG(RK3288_WIN2_CTRL0, 0x7, 1) RK3368's format: VOP_REG(RK3368_WIN2_CTRL0, 0x3, 5)

Bits 5:6 (i.e., shift 5, mask 0x3) are correct for RK3399, according to the TRM.

There are a few other small differences between the 3288 and 3368 definitions that were swapped in commit 7707f7227f09. I reviewed them to the best of my ability according to the RK3399 TRM and fixed them up.

This fixes IOMMU issues (and display errors) when testing with BG24 color formats.

Fixes: 7707f7227f09 ("drm/rockchip: Add support for afbc") Cc: Andrzej Pietrasiewicz andrzej.p@collabora.com Cc: stable@vger.kernel.org Signed-off-by: Brian Norris briannorris@chromium.org

Tested-by: Andrzej Pietrasiewicz andrzej.p@collabora.com

---

I'd appreciate notes or testing from Andrzej, since I'm not sure how he tested his original AFBC work.

drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c index 1f7353f0684a..798b542e5916 100644 --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c @@ -902,6 +902,7 @@ static const struct vop_win_phy rk3399_win01_data = { .enable = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 0), .format = VOP_REG(RK3288_WIN0_CTRL0, 0x7, 1), .rb_swap = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 12),

• .x_mir_en = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 21), .y_mir_en = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 22), .act_info = VOP_REG(RK3288_WIN0_ACT_INFO, 0x1fff1fff, 0), .dsp_info = VOP_REG(RK3288_WIN0_DSP_INFO, 0x0fff0fff, 0),

@@ -912,6 +913,7 @@ static const struct vop_win_phy rk3399_win01_data = { .uv_vir = VOP_REG(RK3288_WIN0_VIR, 0x3fff, 16), .src_alpha_ctl = VOP_REG(RK3288_WIN0_SRC_ALPHA_CTRL, 0xff, 0), .dst_alpha_ctl = VOP_REG(RK3288_WIN0_DST_ALPHA_CTRL, 0xff, 0),

• .channel = VOP_REG(RK3288_WIN0_CTRL2, 0xff, 0), };

/* @@ -922,11 +924,11 @@ static const struct vop_win_phy rk3399_win01_data = { static const struct vop_win_data rk3399_vop_win_data[] = { { .base = 0x00, .phy = &rk3399_win01_data, .type = DRM_PLANE_TYPE_PRIMARY },

• { .base = 0x40, .phy = &rk3288_win01_data,

• { .base = 0x40, .phy = &rk3368_win01_data, .type = DRM_PLANE_TYPE_OVERLAY },

• { .base = 0x00, .phy = &rk3288_win23_data,

• { .base = 0x00, .phy = &rk3368_win23_data, .type = DRM_PLANE_TYPE_OVERLAY },

• { .base = 0x50, .phy = &rk3288_win23_data,

• { .base = 0x50, .phy = &rk3368_win23_data, .type = DRM_PLANE_TYPE_CURSOR }, };