From: Thierry Reding <tred...@nvidia.com>

The number of frames doubles when decoding interlaced content and the
structures describing the frames double in size. Take that into account
to prepare for interlacing support.

Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
 drivers/staging/media/tegra-vde/tegra-vde.c | 73 ++++++++++++++++-----
 1 file changed, 58 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/media/tegra-vde/tegra-vde.c 
b/drivers/staging/media/tegra-vde/tegra-vde.c
index 3027b11b11ae..1a40f6dff7c8 100644
--- a/drivers/staging/media/tegra-vde/tegra-vde.c
+++ b/drivers/staging/media/tegra-vde/tegra-vde.c
@@ -61,7 +61,9 @@ struct video_frame {
 };
 
 struct tegra_vde_soc {
+       unsigned int num_ref_pics;
        bool supports_ref_pic_marking;
+       bool supports_interlacing;
 };
 
 struct tegra_vde {
@@ -205,8 +207,12 @@ static void tegra_vde_setup_frameid(struct tegra_vde *vde,
        u32 cr_addr = frame ? frame->cr_addr : 0x6CDEAD00;
        u32 value1 = frame ? ((mbs_width << 16) | mbs_height) : 0;
        u32 value2 = frame ? ((((mbs_width + 1) >> 1) << 6) | 1) : 0;
+       u32 value = y_addr >> 8;
 
-       VDE_WR(y_addr  >> 8, vde->frameid + 0x000 + frameid * 4);
+       if (vde->soc->supports_interlacing)
+               value |= BIT(31);
+
+       VDE_WR(value,        vde->frameid + 0x000 + frameid * 4);
        VDE_WR(cb_addr >> 8, vde->frameid + 0x100 + frameid * 4);
        VDE_WR(cr_addr >> 8, vde->frameid + 0x180 + frameid * 4);
        VDE_WR(value1,       vde->frameid + 0x080 + frameid * 4);
@@ -229,20 +235,23 @@ static void tegra_setup_frameidx(struct tegra_vde *vde,
 }
 
 static void tegra_vde_setup_iram_entry(struct tegra_vde *vde,
+                                      unsigned int num_ref_pics,
                                       unsigned int table,
                                       unsigned int row,
                                       u32 value1, u32 value2)
 {
+       unsigned int entries = num_ref_pics * 2;
        u32 *iram_tables = vde->iram;
 
        dev_dbg(vde->miscdev.parent, "IRAM table %u: row %u: 0x%08X 0x%08X\n",
                table, row, value1, value2);
 
-       iram_tables[0x20 * table + row * 2] = value1;
-       iram_tables[0x20 * table + row * 2 + 1] = value2;
+       iram_tables[entries * table + row * 2] = value1;
+       iram_tables[entries * table + row * 2 + 1] = value2;
 }
 
 static void tegra_vde_setup_iram_tables(struct tegra_vde *vde,
+                                       unsigned int num_ref_pics,
                                        struct video_frame *dpb_frames,
                                        unsigned int ref_frames_nb,
                                        unsigned int with_earlier_poc_nb)
@@ -251,13 +260,17 @@ static void tegra_vde_setup_iram_tables(struct tegra_vde 
*vde,
        u32 value, aux_addr;
        int with_later_poc_nb;
        unsigned int i, k;
+       size_t size;
+
+       size = num_ref_pics * 4 * 8;
+       memset(vde->iram, 0, size);
 
        dev_dbg(vde->miscdev.parent, "DPB: Frame 0: frame_num = %d\n",
                dpb_frames[0].frame_num);
 
        dev_dbg(vde->miscdev.parent, "REF L0:\n");
 
-       for (i = 0; i < 16; i++) {
+       for (i = 0; i < num_ref_pics; i++) {
                if (i < ref_frames_nb) {
                        frame = &dpb_frames[i + 1];
 
@@ -277,10 +290,14 @@ static void tegra_vde_setup_iram_tables(struct tegra_vde 
*vde,
                        value = 0;
                }
 
-               tegra_vde_setup_iram_entry(vde, 0, i, value, aux_addr);
-               tegra_vde_setup_iram_entry(vde, 1, i, value, aux_addr);
-               tegra_vde_setup_iram_entry(vde, 2, i, value, aux_addr);
-               tegra_vde_setup_iram_entry(vde, 3, i, value, aux_addr);
+               tegra_vde_setup_iram_entry(vde, num_ref_pics, 0, i, value,
+                                          aux_addr);
+               tegra_vde_setup_iram_entry(vde, num_ref_pics, 1, i, value,
+                                          aux_addr);
+               tegra_vde_setup_iram_entry(vde, num_ref_pics, 2, i, value,
+                                          aux_addr);
+               tegra_vde_setup_iram_entry(vde, num_ref_pics, 3, i, value,
+                                          aux_addr);
        }
 
        if (!(dpb_frames[0].flags & FLAG_B_FRAME))
@@ -309,7 +326,8 @@ static void tegra_vde_setup_iram_tables(struct tegra_vde 
*vde,
                        "\tFrame %d: frame_num = %d\n",
                        k + 1, frame->frame_num);
 
-               tegra_vde_setup_iram_entry(vde, 2, i, value, aux_addr);
+               tegra_vde_setup_iram_entry(vde, num_ref_pics, 2, i, value,
+                                          aux_addr);
        }
 
        for (k = 0; i < ref_frames_nb; i++, k++) {
@@ -326,7 +344,8 @@ static void tegra_vde_setup_iram_tables(struct tegra_vde 
*vde,
                        "\tFrame %d: frame_num = %d\n",
                        k + 1, frame->frame_num);
 
-               tegra_vde_setup_iram_entry(vde, 2, i, value, aux_addr);
+               tegra_vde_setup_iram_entry(vde, num_ref_pics, 2, i, value,
+                                          aux_addr);
        }
 }
 
@@ -339,9 +358,20 @@ static int tegra_vde_setup_hw_context(struct tegra_vde 
*vde,
                                      unsigned int macroblocks_nb)
 {
        struct device *dev = vde->miscdev.parent;
+       unsigned int num_ref_pics = 16;
+       /* XXX extend ABI to provide this */
+       bool interlaced = false;
+       size_t size;
        u32 value;
        int err;
 
+       if (vde->soc->supports_interlacing) {
+               if (interlaced)
+                       num_ref_pics = vde->soc->num_ref_pics;
+               else
+                       num_ref_pics = 16;
+       }
+
        tegra_vde_set_bits(vde, 0x000A, vde->sxe + 0xF0);
        tegra_vde_set_bits(vde, 0x000B, vde->bsev + CMDQUE_CONTROL);
        tegra_vde_set_bits(vde, 0x8002, vde->mbe + 0x50);
@@ -369,12 +399,12 @@ static int tegra_vde_setup_hw_context(struct tegra_vde 
*vde,
        VDE_WR(0x00000000, vde->bsev + 0x98);
        VDE_WR(0x00000060, vde->bsev + 0x9C);
 
-       memset(vde->iram + 128, 0, macroblocks_nb / 2);
+       memset(vde->iram + 1024, 0, macroblocks_nb / 2);
 
        tegra_setup_frameidx(vde, dpb_frames, ctx->dpb_frames_nb,
                             ctx->pic_width_in_mbs, ctx->pic_height_in_mbs);
 
-       tegra_vde_setup_iram_tables(vde, dpb_frames,
+       tegra_vde_setup_iram_tables(vde, num_ref_pics, dpb_frames,
                                    ctx->dpb_frames_nb - 1,
                                    ctx->dpb_ref_frames_with_earlier_poc_nb);
 
@@ -396,22 +426,27 @@ static int tegra_vde_setup_hw_context(struct tegra_vde 
*vde,
        if (err)
                return err;
 
-       err = tegra_vde_push_to_bsev_icmdqueue(vde, 0x800003FC, false);
+       value = (0x20 << 26) | (0 << 25) | ((4096 >> 2) & 0x1fff);
+       err = tegra_vde_push_to_bsev_icmdqueue(vde, value, false);
        if (err)
                return err;
 
        value = 0x01500000;
-       value |= ((vde->iram_lists_addr + 512) >> 2) & 0xFFFF;
+       value |= ((vde->iram_lists_addr + 1024) >> 2) & 0xffff;
 
        err = tegra_vde_push_to_bsev_icmdqueue(vde, value, true);
        if (err)
                return err;
 
+       value = (0x21 << 26) | ((240 & 0x1fff) << 12) | (0x54c & 0xfff);
        err = tegra_vde_push_to_bsev_icmdqueue(vde, 0x840F054C, false);
        if (err)
                return err;
 
-       err = tegra_vde_push_to_bsev_icmdqueue(vde, 0x80000080, false);
+       size = num_ref_pics * 4 * 8;
+
+       value = (0x20 << 26) | (0x0 << 25) | ((size >> 2) & 0x1fff);
+       err = tegra_vde_push_to_bsev_icmdqueue(vde, value, false);
        if (err)
                return err;
 
@@ -1290,19 +1325,27 @@ static const struct dev_pm_ops tegra_vde_pm_ops = {
 };
 
 static const struct tegra_vde_soc tegra20_vde_soc = {
+       .num_ref_pics = 16,
        .supports_ref_pic_marking = false,
+       .supports_interlacing = false,
 };
 
 static const struct tegra_vde_soc tegra30_vde_soc = {
+       .num_ref_pics = 32,
        .supports_ref_pic_marking = false,
+       .supports_interlacing = false,
 };
 
 static const struct tegra_vde_soc tegra114_vde_soc = {
+       .num_ref_pics = 32,
        .supports_ref_pic_marking = true,
+       .supports_interlacing = false,
 };
 
 static const struct tegra_vde_soc tegra124_vde_soc = {
+       .num_ref_pics = 32,
        .supports_ref_pic_marking = true,
+       .supports_interlacing = true,
 };
 
 static const struct of_device_id tegra_vde_of_match[] = {
-- 
2.17.0

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