From: Thierry Reding <treding@xxxxxxxxxx> Add some comments specifying what tables are being set up in VRAM. Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> --- drivers/staging/media/tegra-vde/tegra-vde.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/staging/media/tegra-vde/tegra-vde.c b/drivers/staging/media/tegra-vde/tegra-vde.c index 0adc603fa437..41cf86dc5dbd 100644 --- a/drivers/staging/media/tegra-vde/tegra-vde.c +++ b/drivers/staging/media/tegra-vde/tegra-vde.c @@ -271,6 +271,7 @@ static void tegra_vde_setup_iram_tables(struct tegra_vde *vde, unsigned int i, k; size_t size; + /* clear H256RefPicList */ size = num_ref_pics * 4 * 8; memset(vde->iram, 0, size); @@ -453,6 +454,7 @@ static int tegra_vde_setup_hw_context(struct tegra_vde *vde, VDE_WR(0x00000000, vde->bsev + 0x98); VDE_WR(0x00000060, vde->bsev + 0x9C); + /* clear H264MB2SliceGroupMap, assuming no FMO */ memset(vde->iram + 1024, 0, macroblocks_nb / 2); tegra_setup_frameidx(vde, dpb_frames, ctx->dpb_frames_nb, @@ -480,6 +482,8 @@ static int tegra_vde_setup_hw_context(struct tegra_vde *vde, if (err) return err; + /* upload H264MB2SliceGroupMap */ + /* XXX don't hardcode map size? */ value = (0x20 << 26) | (0 << 25) | ((4096 >> 2) & 0x1fff); err = tegra_vde_push_to_bsev_icmdqueue(vde, value, false); if (err) @@ -492,6 +496,7 @@ static int tegra_vde_setup_hw_context(struct tegra_vde *vde, if (err) return err; + /* clear H264MBInfo XXX don't hardcode size */ value = (0x21 << 26) | ((240 & 0x1fff) << 12) | (0x54c & 0xfff); err = tegra_vde_push_to_bsev_icmdqueue(vde, 0x840F054C, false); if (err) @@ -499,6 +504,16 @@ static int tegra_vde_setup_hw_context(struct tegra_vde *vde, size = num_ref_pics * 4 * 8; + /* clear H264RefPicList */ + /* + value = (0x21 << 26) | (((size >> 2) & 0x1fff) << 12) | 0xE34; + + err = tegra_vde_push_to_bsev_icmdqueue(vde, value, false); + if (err) + return err; + */ + + /* upload H264RefPicList */ value = (0x20 << 26) | (0x0 << 25) | ((size >> 2) & 0x1fff); err = tegra_vde_push_to_bsev_icmdqueue(vde, value, false); if (err) @@ -584,7 +599,11 @@ static int tegra_vde_setup_hw_context(struct tegra_vde *vde, tegra_vde_mbe_set_0xa_reg(vde, 0, 0x000009FC); tegra_vde_mbe_set_0xa_reg(vde, 2, 0x61DEAD00); +#if 0 + tegra_vde_mbe_set_0xa_reg(vde, 4, dpb_frames[0].aux_addr); /* 0x62DEAD00 */ +#else tegra_vde_mbe_set_0xa_reg(vde, 4, 0x62DEAD00); +#endif tegra_vde_mbe_set_0xa_reg(vde, 6, 0x63DEAD00); tegra_vde_mbe_set_0xa_reg(vde, 8, dpb_frames[0].aux_addr); -- 2.17.0
