How to run FreeBSD on new boards built on Rockchip 35XX..

[covacat]

ok panfrost + iommu seems to work. i ran glmark2 fullscreen 4 times, firefox for a while and no crashes so far.
glmark2 score in 1920x1080 is 150

 

[jsm]

My issue might big wrong clock freq in vop-big I still have to investigate...

 

[covacat]

it seems that the iommu has be enabled in the vop driver for rk3399 ?

https://rockchip.fr/RK3288%20TRM/rk3288-chapter-27-visual-output-processor-(vop).pdf

search for vop_mmu_en
however i can't find where this is enabled in the linux driver but the bit is described in the headers but does not seem to be actually used

static const struct vop_common rk3399_common = {
    .standby = VOP_REG_SYNC(RK3399_SYS_CTRL, 0x1, 22),
    .gate_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 23),
    .mmu_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 20),
    .dither_down_sel = VOP_REG(RK3399_DSP_CTRL1, 0x1, 4),
    .dither_down_mode = VOP_REG(RK3399_DSP_CTRL1, 0x1, 3),
    .dither_down_en = VOP_REG(RK3399_DSP_CTRL1, 0x1, 2),
    .pre_dither_down = VOP_REG(RK3399_DSP_CTRL1, 0x1, 1),
    .dither_up = VOP_REG(RK3399_DSP_CTRL1, 0x1, 6),
    .dsp_lut_en = VOP_REG(RK3399_DSP_CTRL1, 0x1, 0),
    .update_gamma_lut = VOP_REG(RK3399_DSP_CTRL1, 0x1, 7),
    .lut_buffer_index = VOP_REG(RK3399_DBG_POST_REG1, 0x1, 1),
    .data_blank = VOP_REG(RK3399_DSP_CTRL0, 0x1, 19),
    .dsp_blank = VOP_REG(RK3399_DSP_CTRL0, 0x3, 18),
    .out_mode = VOP_REG(RK3399_DSP_CTRL0, 0xf, 0),
    .cfg_done = VOP_REG_SYNC(RK3399_REG_CFG_DONE, 0x1, 0),
};

 

[jsm]

Oh, so i have to tell the vop to use mmu?

 

[covacat]

Oh, so i have to tell the vop to use mmu?

well the manual says you have but i see no where to be set in the linux driver. for vop2 there is no such thing. so i really don't know

 

[covacat]

I wish chinese soc manuals were written in a better english

find out that my iommu fault problem was due to the fact the window region disable bit is read only. you have to commit it via another reg