drm/meson: plane: add support for AFBC mode for OSD1 plane
[sfrench/cifs-2.6.git] / drivers / gpu / drm / meson / meson_plane.c
index 5e798c2760377f0c4fbecd6e9ca030093f7bc239..534c628797967606a14d338e0812d81204608292 100644 (file)
@@ -23,6 +23,7 @@
 #include "meson_plane.h"
 #include "meson_registers.h"
 #include "meson_viu.h"
+#include "meson_osd_afbcd.h"
 
 /* OSD_SCI_WH_M1 */
 #define SCI_WH_M1_W(w)                 FIELD_PREP(GENMASK(28, 16), w)
@@ -92,12 +93,38 @@ static int meson_plane_atomic_check(struct drm_plane *plane,
                                                   false, true);
 }
 
+#define MESON_MOD_AFBC_VALID_BITS (AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |  \
+                                  AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |    \
+                                  AFBC_FORMAT_MOD_YTR |                \
+                                  AFBC_FORMAT_MOD_SPARSE |             \
+                                  AFBC_FORMAT_MOD_SPLIT)
+
 /* Takes a fixed 16.16 number and converts it to integer. */
 static inline int64_t fixed16_to_int(int64_t value)
 {
        return value >> 16;
 }
 
+static u32 meson_g12a_afbcd_line_stride(struct meson_drm *priv)
+{
+       u32 line_stride = 0;
+
+       switch (priv->afbcd.format) {
+       case DRM_FORMAT_RGB565:
+               line_stride = ((priv->viu.osd1_width << 4) + 127) >> 7;
+               break;
+       case DRM_FORMAT_RGB888:
+       case DRM_FORMAT_XRGB8888:
+       case DRM_FORMAT_ARGB8888:
+       case DRM_FORMAT_XBGR8888:
+       case DRM_FORMAT_ABGR8888:
+               line_stride = ((priv->viu.osd1_width << 5) + 127) >> 7;
+               break;
+       }
+
+       return ((line_stride + 1) >> 1) << 1;
+}
+
 static void meson_plane_atomic_update(struct drm_plane *plane,
                                      struct drm_plane_state *old_state)
 {
@@ -126,57 +153,89 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
         */
        spin_lock_irqsave(&priv->drm->event_lock, flags);
 
+       /* Check if AFBC decoder is required for this buffer */
+       if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
+            meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) &&
+           fb->modifier & DRM_FORMAT_MOD_ARM_AFBC(MESON_MOD_AFBC_VALID_BITS))
+               priv->viu.osd1_afbcd = true;
+       else
+               priv->viu.osd1_afbcd = false;
+
        /* Enable OSD and BLK0, set max global alpha */
        priv->viu.osd1_ctrl_stat = OSD_ENABLE |
                                   (0xFF << OSD_GLOBAL_ALPHA_SHIFT) |
                                   OSD_BLK0_ENABLE;
 
+       priv->viu.osd1_ctrl_stat2 = readl(priv->io_base +
+                                         _REG(VIU_OSD1_CTRL_STAT2));
+
        canvas_id_osd1 = priv->canvas_id_osd1;
 
        /* Set up BLK0 to point to the right canvas */
-       priv->viu.osd1_blk0_cfg[0] = ((canvas_id_osd1 << OSD_CANVAS_SEL) |
-                                     OSD_ENDIANNESS_LE);
+       priv->viu.osd1_blk0_cfg[0] = canvas_id_osd1 << OSD_CANVAS_SEL;
+
+       if (priv->viu.osd1_afbcd) {
+               if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
+                       /* This is the internal decoding memory address */
+                       priv->viu.osd1_blk1_cfg4 = MESON_G12A_AFBCD_OUT_ADDR;
+                       priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_BE;
+                       priv->viu.osd1_ctrl_stat2 |= OSD_PENDING_STAT_CLEAN;
+                       priv->viu.osd1_ctrl_stat |= VIU_OSD1_CFG_SYN_EN;
+               }
+
+               if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM)) {
+                       priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_LE;
+                       priv->viu.osd1_ctrl_stat2 |= OSD_DPATH_MALI_AFBCD;
+               }
+       } else {
+               priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_LE;
+
+               if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM))
+                       priv->viu.osd1_ctrl_stat2 &= ~OSD_DPATH_MALI_AFBCD;
+       }
 
        /* On GXBB, Use the old non-HDR RGB2YUV converter */
        if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
                priv->viu.osd1_blk0_cfg[0] |= OSD_OUTPUT_COLOR_RGB;
 
+       if (priv->viu.osd1_afbcd &&
+           meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
+               priv->viu.osd1_blk0_cfg[0] |= OSD_MALI_SRC_EN |
+                       priv->afbcd.ops->fmt_to_blk_mode(fb->modifier,
+                                                         fb->format->format);
+       } else {
+               switch (fb->format->format) {
+               case DRM_FORMAT_XRGB8888:
+               case DRM_FORMAT_ARGB8888:
+                       priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
+                                               OSD_COLOR_MATRIX_32_ARGB;
+                       break;
+               case DRM_FORMAT_XBGR8888:
+               case DRM_FORMAT_ABGR8888:
+                       priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
+                                               OSD_COLOR_MATRIX_32_ABGR;
+                       break;
+               case DRM_FORMAT_RGB888:
+                       priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
+                                               OSD_COLOR_MATRIX_24_RGB;
+                       break;
+               case DRM_FORMAT_RGB565:
+                       priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_16 |
+                                               OSD_COLOR_MATRIX_16_RGB565;
+                       break;
+               };
+       }
+
        switch (fb->format->format) {
        case DRM_FORMAT_XRGB8888:
-               /* For XRGB, replace the pixel's alpha by 0xFF */
-               writel_bits_relaxed(OSD_REPLACE_EN, OSD_REPLACE_EN,
-                                   priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-               priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-                                             OSD_COLOR_MATRIX_32_ARGB;
-               break;
        case DRM_FORMAT_XBGR8888:
                /* For XRGB, replace the pixel's alpha by 0xFF */
-               writel_bits_relaxed(OSD_REPLACE_EN, OSD_REPLACE_EN,
-                                   priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-               priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-                                             OSD_COLOR_MATRIX_32_ABGR;
+               priv->viu.osd1_ctrl_stat2 |= OSD_REPLACE_EN;
                break;
        case DRM_FORMAT_ARGB8888:
-               /* For ARGB, use the pixel's alpha */
-               writel_bits_relaxed(OSD_REPLACE_EN, 0,
-                                   priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-               priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-                                             OSD_COLOR_MATRIX_32_ARGB;
-               break;
        case DRM_FORMAT_ABGR8888:
                /* For ARGB, use the pixel's alpha */
-               writel_bits_relaxed(OSD_REPLACE_EN, 0,
-                                   priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-               priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-                                             OSD_COLOR_MATRIX_32_ABGR;
-               break;
-       case DRM_FORMAT_RGB888:
-               priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
-                                             OSD_COLOR_MATRIX_24_RGB;
-               break;
-       case DRM_FORMAT_RGB565:
-               priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_16 |
-                                             OSD_COLOR_MATRIX_16_RGB565;
+               priv->viu.osd1_ctrl_stat2 &= ~OSD_REPLACE_EN;
                break;
        };
 
@@ -307,6 +366,16 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
        priv->viu.osd1_height = fb->height;
        priv->viu.osd1_width = fb->width;
 
+       if (priv->viu.osd1_afbcd) {
+               priv->afbcd.modifier = fb->modifier;
+               priv->afbcd.format = fb->format->format;
+
+               /* Calculate decoder write stride */
+               if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
+                       priv->viu.osd1_blk2_cfg4 =
+                               meson_g12a_afbcd_line_stride(priv);
+       }
+
        if (!meson_plane->enabled) {
                /* Reset OSD1 before enabling it on GXL+ SoCs */
                if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
@@ -327,6 +396,11 @@ static void meson_plane_atomic_disable(struct drm_plane *plane,
        struct meson_plane *meson_plane = to_meson_plane(plane);
        struct meson_drm *priv = meson_plane->priv;
 
+       if (priv->afbcd.ops) {
+               priv->afbcd.ops->reset(priv);
+               priv->afbcd.ops->disable(priv);
+       }
+
        /* Disable OSD1 */
        if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
                writel_bits_relaxed(VIU_OSD1_POSTBLD_SRC_OSD1, 0,
@@ -346,6 +420,42 @@ static const struct drm_plane_helper_funcs meson_plane_helper_funcs = {
        .prepare_fb     = drm_gem_fb_prepare_fb,
 };
 
+static bool meson_plane_format_mod_supported(struct drm_plane *plane,
+                                            u32 format, u64 modifier)
+{
+       struct meson_plane *meson_plane = to_meson_plane(plane);
+       struct meson_drm *priv = meson_plane->priv;
+       int i;
+
+       if (modifier == DRM_FORMAT_MOD_INVALID)
+               return false;
+
+       if (modifier == DRM_FORMAT_MOD_LINEAR)
+               return true;
+
+       if (!meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) &&
+           !meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
+               return false;
+
+       if (modifier & ~DRM_FORMAT_MOD_ARM_AFBC(MESON_MOD_AFBC_VALID_BITS))
+               return false;
+
+       for (i = 0 ; i < plane->modifier_count ; ++i)
+               if (plane->modifiers[i] == modifier)
+                       break;
+
+       if (i == plane->modifier_count) {
+               DRM_DEBUG_KMS("Unsupported modifier\n");
+               return false;
+       }
+
+       if (priv->afbcd.ops && priv->afbcd.ops->supported_fmt)
+               return priv->afbcd.ops->supported_fmt(modifier, format);
+
+       DRM_DEBUG_KMS("AFBC Unsupported\n");
+       return false;
+}
+
 static const struct drm_plane_funcs meson_plane_funcs = {
        .update_plane           = drm_atomic_helper_update_plane,
        .disable_plane          = drm_atomic_helper_disable_plane,
@@ -353,6 +463,7 @@ static const struct drm_plane_funcs meson_plane_funcs = {
        .reset                  = drm_atomic_helper_plane_reset,
        .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
        .atomic_destroy_state   = drm_atomic_helper_plane_destroy_state,
+       .format_mod_supported   = meson_plane_format_mod_supported,
 };
 
 static const uint32_t supported_drm_formats[] = {
@@ -364,10 +475,60 @@ static const uint32_t supported_drm_formats[] = {
        DRM_FORMAT_RGB565,
 };
 
+static const uint64_t format_modifiers_afbc_gxm[] = {
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+                               AFBC_FORMAT_MOD_SPARSE |
+                               AFBC_FORMAT_MOD_YTR),
+       /* SPLIT mandates SPARSE, RGB modes mandates YTR */
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+                               AFBC_FORMAT_MOD_YTR |
+                               AFBC_FORMAT_MOD_SPARSE |
+                               AFBC_FORMAT_MOD_SPLIT),
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID,
+};
+
+static const uint64_t format_modifiers_afbc_g12a[] = {
+       /*
+        * - TOFIX Support AFBC modifiers for YUV formats (16x16 + TILED)
+        * - SPLIT is mandatory for performances reasons when in 16x16
+        *   block size
+        * - 32x8 block size + SPLIT is mandatory with 4K frame size
+        *   for performances reasons
+        */
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+                               AFBC_FORMAT_MOD_SPARSE |
+                               AFBC_FORMAT_MOD_SPLIT),
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+                               AFBC_FORMAT_MOD_YTR |
+                               AFBC_FORMAT_MOD_SPARSE |
+                               AFBC_FORMAT_MOD_SPLIT),
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+                               AFBC_FORMAT_MOD_SPARSE),
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+                               AFBC_FORMAT_MOD_YTR |
+                               AFBC_FORMAT_MOD_SPARSE),
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+                               AFBC_FORMAT_MOD_SPARSE |
+                               AFBC_FORMAT_MOD_SPLIT),
+       DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+                               AFBC_FORMAT_MOD_YTR |
+                               AFBC_FORMAT_MOD_SPARSE |
+                               AFBC_FORMAT_MOD_SPLIT),
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID,
+};
+
+static const uint64_t format_modifiers_default[] = {
+       DRM_FORMAT_MOD_LINEAR,
+       DRM_FORMAT_MOD_INVALID,
+};
+
 int meson_plane_create(struct meson_drm *priv)
 {
        struct meson_plane *meson_plane;
        struct drm_plane *plane;
+       const uint64_t *format_modifiers = format_modifiers_default;
 
        meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
                                   GFP_KERNEL);
@@ -377,11 +538,16 @@ int meson_plane_create(struct meson_drm *priv)
        meson_plane->priv = priv;
        plane = &meson_plane->base;
 
+       if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM))
+               format_modifiers = format_modifiers_afbc_gxm;
+       else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
+               format_modifiers = format_modifiers_afbc_g12a;
+
        drm_universal_plane_init(priv->drm, plane, 0xFF,
                                 &meson_plane_funcs,
                                 supported_drm_formats,
                                 ARRAY_SIZE(supported_drm_formats),
-                                NULL,
+                                format_modifiers,
                                 DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
 
        drm_plane_helper_add(plane, &meson_plane_helper_funcs);