/* Clipped coordinates of the plane on the display. */
int crtc_x, crtc_y, crtc_w, crtc_h;
/* Clipped area being scanned from in the FB. */
- u32 src_x, src_y, src_w, src_h;
+ u32 src_x, src_y;
- enum vc4_scaling_mode x_scaling, y_scaling;
+ u32 src_w[2], src_h[2];
+
+ /* Scaling selection for the RGB/Y plane and the Cb/Cr planes. */
+ enum vc4_scaling_mode x_scaling[2], y_scaling[2];
bool is_unity;
+ bool is_yuv;
/* Offset to start scanning out from the start of the plane's
* BO.
*/
- u32 offset;
+ u32 offsets[3];
/* Our allocation in LBM for temporary storage during scaling. */
struct drm_mm_node lbm;
u32 hvs; /* HVS_FORMAT_* */
u32 pixel_order;
bool has_alpha;
+ bool flip_cbcr;
} hvs_formats[] = {
{
.drm = DRM_FORMAT_XRGB8888, .hvs = HVS_PIXEL_FORMAT_RGBA8888,
.drm = DRM_FORMAT_XRGB1555, .hvs = HVS_PIXEL_FORMAT_RGBA5551,
.pixel_order = HVS_PIXEL_ORDER_ABGR, .has_alpha = false,
},
+ {
+ .drm = DRM_FORMAT_YUV422,
+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
+ },
+ {
+ .drm = DRM_FORMAT_YVU422,
+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
+ .flip_cbcr = true,
+ },
+ {
+ .drm = DRM_FORMAT_YUV420,
+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE,
+ },
+ {
+ .drm = DRM_FORMAT_YVU420,
+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE,
+ .flip_cbcr = true,
+ },
+ {
+ .drm = DRM_FORMAT_NV12,
+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE,
+ },
+ {
+ .drm = DRM_FORMAT_NV16,
+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE,
+ },
};
static const struct hvs_format *vc4_get_hvs_format(u32 drm_format)
*
* This is a replication of a table from the spec.
*/
-static u32 vc4_get_scl_field(struct drm_plane_state *state)
+static u32 vc4_get_scl_field(struct drm_plane_state *state, int plane)
{
struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
- switch (vc4_state->x_scaling << 2 | vc4_state->y_scaling) {
+ switch (vc4_state->x_scaling[plane] << 2 | vc4_state->y_scaling[plane]) {
case VC4_SCALING_PPF << 2 | VC4_SCALING_PPF:
return SCALER_CTL0_SCL_H_PPF_V_PPF;
case VC4_SCALING_TPZ << 2 | VC4_SCALING_PPF:
struct drm_plane *plane = state->plane;
struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
struct drm_framebuffer *fb = state->fb;
+ struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
u32 subpixel_src_mask = (1 << 16) - 1;
+ u32 format = fb->pixel_format;
+ int num_planes = drm_format_num_planes(format);
+ u32 h_subsample = 1;
+ u32 v_subsample = 1;
+ int i;
- vc4_state->offset = fb->offsets[0];
+ for (i = 0; i < num_planes; i++)
+ vc4_state->offsets[i] = bo->paddr + fb->offsets[i];
/* We don't support subpixel source positioning for scaling. */
if ((state->src_x & subpixel_src_mask) ||
vc4_state->src_x = state->src_x >> 16;
vc4_state->src_y = state->src_y >> 16;
- vc4_state->src_w = state->src_w >> 16;
- vc4_state->src_h = state->src_h >> 16;
+ vc4_state->src_w[0] = state->src_w >> 16;
+ vc4_state->src_h[0] = state->src_h >> 16;
vc4_state->crtc_x = state->crtc_x;
vc4_state->crtc_y = state->crtc_y;
vc4_state->crtc_w = state->crtc_w;
vc4_state->crtc_h = state->crtc_h;
- vc4_state->x_scaling = vc4_get_scaling_mode(vc4_state->src_w,
- vc4_state->crtc_w);
- vc4_state->y_scaling = vc4_get_scaling_mode(vc4_state->src_h,
- vc4_state->crtc_h);
- vc4_state->is_unity = (vc4_state->x_scaling == VC4_SCALING_NONE &&
- vc4_state->y_scaling == VC4_SCALING_NONE);
+ vc4_state->x_scaling[0] = vc4_get_scaling_mode(vc4_state->src_w[0],
+ vc4_state->crtc_w);
+ vc4_state->y_scaling[0] = vc4_get_scaling_mode(vc4_state->src_h[0],
+ vc4_state->crtc_h);
+
+ if (num_planes > 1) {
+ vc4_state->is_yuv = true;
+
+ h_subsample = drm_format_horz_chroma_subsampling(format);
+ v_subsample = drm_format_vert_chroma_subsampling(format);
+ vc4_state->src_w[1] = vc4_state->src_w[0] / h_subsample;
+ vc4_state->src_h[1] = vc4_state->src_h[0] / v_subsample;
+
+ vc4_state->x_scaling[1] =
+ vc4_get_scaling_mode(vc4_state->src_w[1],
+ vc4_state->crtc_w);
+ vc4_state->y_scaling[1] =
+ vc4_get_scaling_mode(vc4_state->src_h[1],
+ vc4_state->crtc_h);
+
+ /* YUV conversion requires that scaling be enabled,
+ * even on a plane that's otherwise 1:1. Choose TPZ
+ * for simplicity.
+ */
+ if (vc4_state->x_scaling[0] == VC4_SCALING_NONE)
+ vc4_state->x_scaling[0] = VC4_SCALING_TPZ;
+ if (vc4_state->y_scaling[0] == VC4_SCALING_NONE)
+ vc4_state->y_scaling[0] = VC4_SCALING_TPZ;
+ }
+
+ vc4_state->is_unity = (vc4_state->x_scaling[0] == VC4_SCALING_NONE &&
+ vc4_state->y_scaling[0] == VC4_SCALING_NONE &&
+ vc4_state->x_scaling[1] == VC4_SCALING_NONE &&
+ vc4_state->y_scaling[1] == VC4_SCALING_NONE);
/* No configuring scaling on the cursor plane, since it gets
non-vblank-synced updates, and scaling requires requires
* support negative y, and negative x wastes bandwidth.
*/
if (vc4_state->crtc_x < 0) {
- vc4_state->offset += (drm_format_plane_cpp(fb->pixel_format,
- 0) *
- -vc4_state->crtc_x);
- vc4_state->src_w += vc4_state->crtc_x;
+ for (i = 0; i < num_planes; i++) {
+ u32 cpp = drm_format_plane_cpp(fb->pixel_format, i);
+ u32 subs = ((i == 0) ? 1 : h_subsample);
+
+ vc4_state->offsets[i] += (cpp *
+ (-vc4_state->crtc_x) / subs);
+ }
+ vc4_state->src_w[0] += vc4_state->crtc_x;
+ vc4_state->src_w[1] += vc4_state->crtc_x / h_subsample;
vc4_state->crtc_x = 0;
}
if (vc4_state->crtc_y < 0) {
- vc4_state->offset += fb->pitches[0] * -vc4_state->crtc_y;
- vc4_state->src_h += vc4_state->crtc_y;
+ for (i = 0; i < num_planes; i++) {
+ u32 subs = ((i == 0) ? 1 : v_subsample);
+
+ vc4_state->offsets[i] += (fb->pitches[i] *
+ (-vc4_state->crtc_y) / subs);
+ }
+ vc4_state->src_h[0] += vc4_state->crtc_y;
+ vc4_state->src_h[1] += vc4_state->crtc_y / v_subsample;
vc4_state->crtc_y = 0;
}
/* This is the worst case number. One of the two sizes will
* be used depending on the scaling configuration.
*/
- u32 pix_per_line = max(vc4_state->src_w, (u32)vc4_state->crtc_w);
+ u32 pix_per_line = max(vc4_state->src_w[0], (u32)vc4_state->crtc_w);
u32 lbm;
- if (vc4_state->is_unity)
- return 0;
- else if (vc4_state->y_scaling == VC4_SCALING_TPZ)
- lbm = pix_per_line * 8;
- else {
- /* In special cases, this multiplier might be 12. */
+ if (!vc4_state->is_yuv) {
+ if (vc4_state->is_unity)
+ return 0;
+ else if (vc4_state->y_scaling[0] == VC4_SCALING_TPZ)
+ lbm = pix_per_line * 8;
+ else {
+ /* In special cases, this multiplier might be 12. */
+ lbm = pix_per_line * 16;
+ }
+ } else {
+ /* There are cases for this going down to a multiplier
+ * of 2, but according to the firmware source, the
+ * table in the docs is somewhat wrong.
+ */
lbm = pix_per_line * 16;
}
return lbm;
}
-static void vc4_write_scaling_parameters(struct drm_plane_state *state)
+static void vc4_write_scaling_parameters(struct drm_plane_state *state,
+ int channel)
{
struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
/* Ch0 H-PPF Word 0: Scaling Parameters */
- if (vc4_state->x_scaling == VC4_SCALING_PPF) {
+ if (vc4_state->x_scaling[channel] == VC4_SCALING_PPF) {
vc4_write_ppf(vc4_state,
- vc4_state->src_w, vc4_state->crtc_w);
+ vc4_state->src_w[channel], vc4_state->crtc_w);
}
/* Ch0 V-PPF Words 0-1: Scaling Parameters, Context */
- if (vc4_state->y_scaling == VC4_SCALING_PPF) {
+ if (vc4_state->y_scaling[channel] == VC4_SCALING_PPF) {
vc4_write_ppf(vc4_state,
- vc4_state->src_h, vc4_state->crtc_h);
+ vc4_state->src_h[channel], vc4_state->crtc_h);
vc4_dlist_write(vc4_state, 0xc0c0c0c0);
}
/* Ch0 H-TPZ Words 0-1: Scaling Parameters, Recip */
- if (vc4_state->x_scaling == VC4_SCALING_TPZ) {
+ if (vc4_state->x_scaling[channel] == VC4_SCALING_TPZ) {
vc4_write_tpz(vc4_state,
- vc4_state->src_w, vc4_state->crtc_w);
+ vc4_state->src_w[channel], vc4_state->crtc_w);
}
/* Ch0 V-TPZ Words 0-2: Scaling Parameters, Recip, Context */
- if (vc4_state->y_scaling == VC4_SCALING_TPZ) {
+ if (vc4_state->y_scaling[channel] == VC4_SCALING_TPZ) {
vc4_write_tpz(vc4_state,
- vc4_state->src_h, vc4_state->crtc_h);
+ vc4_state->src_h[channel], vc4_state->crtc_h);
vc4_dlist_write(vc4_state, 0xc0c0c0c0);
}
}
struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
struct drm_framebuffer *fb = state->fb;
- struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
u32 ctl0_offset = vc4_state->dlist_count;
const struct hvs_format *format = vc4_get_hvs_format(fb->pixel_format);
- u32 scl;
+ int num_planes = drm_format_num_planes(format->drm);
+ u32 scl0, scl1;
u32 lbm_size;
unsigned long irqflags;
- int ret;
+ int ret, i;
ret = vc4_plane_setup_clipping_and_scaling(state);
if (ret)
if (ret)
return ret;
- scl = vc4_get_scl_field(state);
+ /* SCL1 is used for Cb/Cr scaling of planar formats. For RGB
+ * and 4:4:4, scl1 should be set to scl0 so both channels of
+ * the scaler do the same thing. For YUV, the Y plane needs
+ * to be put in channel 1 and Cb/Cr in channel 0, so we swap
+ * the scl fields here.
+ */
+ if (num_planes == 1) {
+ scl0 = vc4_get_scl_field(state, 1);
+ scl1 = scl0;
+ } else {
+ scl0 = vc4_get_scl_field(state, 1);
+ scl1 = vc4_get_scl_field(state, 0);
+ }
/* Control word */
vc4_dlist_write(vc4_state,
(format->pixel_order << SCALER_CTL0_ORDER_SHIFT) |
(format->hvs << SCALER_CTL0_PIXEL_FORMAT_SHIFT) |
(vc4_state->is_unity ? SCALER_CTL0_UNITY : 0) |
- VC4_SET_FIELD(scl, SCALER_CTL0_SCL0) |
- VC4_SET_FIELD(scl, SCALER_CTL0_SCL1));
+ VC4_SET_FIELD(scl0, SCALER_CTL0_SCL0) |
+ VC4_SET_FIELD(scl1, SCALER_CTL0_SCL1));
/* Position Word 0: Image Positions and Alpha Value */
vc4_state->pos0_offset = vc4_state->dlist_count;
SCALER_POS2_ALPHA_MODE_PIPELINE :
SCALER_POS2_ALPHA_MODE_FIXED,
SCALER_POS2_ALPHA_MODE) |
- VC4_SET_FIELD(vc4_state->src_w, SCALER_POS2_WIDTH) |
- VC4_SET_FIELD(vc4_state->src_h, SCALER_POS2_HEIGHT));
+ VC4_SET_FIELD(vc4_state->src_w[0], SCALER_POS2_WIDTH) |
+ VC4_SET_FIELD(vc4_state->src_h[0], SCALER_POS2_HEIGHT));
/* Position Word 3: Context. Written by the HVS. */
vc4_dlist_write(vc4_state, 0xc0c0c0c0);
- /* Pointer Word 0: RGB / Y Pointer */
+
+ /* Pointer Word 0/1/2: RGB / Y / Cb / Cr Pointers
+ *
+ * The pointers may be any byte address.
+ */
vc4_state->ptr0_offset = vc4_state->dlist_count;
- vc4_dlist_write(vc4_state, bo->paddr + vc4_state->offset);
+ if (!format->flip_cbcr) {
+ for (i = 0; i < num_planes; i++)
+ vc4_dlist_write(vc4_state, vc4_state->offsets[i]);
+ } else {
+ WARN_ON_ONCE(num_planes != 3);
+ vc4_dlist_write(vc4_state, vc4_state->offsets[0]);
+ vc4_dlist_write(vc4_state, vc4_state->offsets[2]);
+ vc4_dlist_write(vc4_state, vc4_state->offsets[1]);
+ }
- /* Pointer Context Word 0: Written by the HVS */
- vc4_dlist_write(vc4_state, 0xc0c0c0c0);
+ /* Pointer Context Word 0/1/2: Written by the HVS */
+ for (i = 0; i < num_planes; i++)
+ vc4_dlist_write(vc4_state, 0xc0c0c0c0);
- /* Pitch word 0: Pointer 0 Pitch */
- vc4_dlist_write(vc4_state,
- VC4_SET_FIELD(fb->pitches[0], SCALER_SRC_PITCH));
+ /* Pitch word 0/1/2 */
+ for (i = 0; i < num_planes; i++) {
+ vc4_dlist_write(vc4_state,
+ VC4_SET_FIELD(fb->pitches[i], SCALER_SRC_PITCH));
+ }
+
+ /* Colorspace conversion words */
+ if (vc4_state->is_yuv) {
+ vc4_dlist_write(vc4_state, SCALER_CSC0_ITR_R_601_5);
+ vc4_dlist_write(vc4_state, SCALER_CSC1_ITR_R_601_5);
+ vc4_dlist_write(vc4_state, SCALER_CSC2_ITR_R_601_5);
+ }
if (!vc4_state->is_unity) {
/* LBM Base Address. */
- if (vc4_state->y_scaling != VC4_SCALING_NONE)
+ if (vc4_state->y_scaling[0] != VC4_SCALING_NONE ||
+ vc4_state->y_scaling[1] != VC4_SCALING_NONE) {
vc4_dlist_write(vc4_state, vc4_state->lbm.start);
+ }
- vc4_write_scaling_parameters(state);
+ if (num_planes > 1) {
+ /* Emit Cb/Cr as channel 0 and Y as channel
+ * 1. This matches how we set up scl0/scl1
+ * above.
+ */
+ vc4_write_scaling_parameters(state, 1);
+ }
+ vc4_write_scaling_parameters(state, 0);
/* If any PPF setup was done, then all the kernel
* pointers get uploaded.
*/
- if (vc4_state->x_scaling == VC4_SCALING_PPF ||
- vc4_state->y_scaling == VC4_SCALING_PPF) {
+ if (vc4_state->x_scaling[0] == VC4_SCALING_PPF ||
+ vc4_state->y_scaling[0] == VC4_SCALING_PPF ||
+ vc4_state->x_scaling[1] == VC4_SCALING_PPF ||
+ vc4_state->y_scaling[1] == VC4_SCALING_PPF) {
u32 kernel = VC4_SET_FIELD(vc4->hvs->mitchell_netravali_filter.start,
SCALER_PPF_KERNEL_OFFSET);
struct drm_plane *plane = NULL;
struct vc4_plane *vc4_plane;
u32 formats[ARRAY_SIZE(hvs_formats)];
+ u32 num_formats = 0;
int ret = 0;
unsigned i;
goto fail;
}
- for (i = 0; i < ARRAY_SIZE(hvs_formats); i++)
- formats[i] = hvs_formats[i].drm;
+ for (i = 0; i < ARRAY_SIZE(hvs_formats); i++) {
+ /* Don't allow YUV in cursor planes, since that means
+ * tuning on the scaler, which we don't allow for the
+ * cursor.
+ */
+ if (type != DRM_PLANE_TYPE_CURSOR ||
+ hvs_formats[i].hvs < HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE) {
+ formats[num_formats++] = hvs_formats[i].drm;
+ }
+ }
plane = &vc4_plane->base;
ret = drm_universal_plane_init(dev, plane, 0xff,
&vc4_plane_funcs,
- formats, ARRAY_SIZE(formats),
+ formats, num_formats,
type, NULL);
drm_plane_helper_add(plane, &vc4_plane_helper_funcs);
HVS_PIXEL_FORMAT_RGB888 = 5,
HVS_PIXEL_FORMAT_RGBA6666 = 6,
/* 32bpp */
- HVS_PIXEL_FORMAT_RGBA8888 = 7
+ HVS_PIXEL_FORMAT_RGBA8888 = 7,
+
+ HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE = 8,
+ HVS_PIXEL_FORMAT_YCBCR_YUV420_2PLANE = 9,
+ HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE = 10,
+ HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE = 11,
};
/* Note: the LSB is the rightmost character shown. Only valid for
#define SCALER_POS2_WIDTH_MASK VC4_MASK(11, 0)
#define SCALER_POS2_WIDTH_SHIFT 0
+/* Color Space Conversion words. Some values are S2.8 signed
+ * integers, except that the 2 integer bits map as {0x0: 0, 0x1: 1,
+ * 0x2: 2, 0x3: -1}
+ */
+/* bottom 8 bits of S2.8 contribution of Cr to Blue */
+#define SCALER_CSC0_COEF_CR_BLU_MASK VC4_MASK(31, 24)
+#define SCALER_CSC0_COEF_CR_BLU_SHIFT 24
+/* Signed offset to apply to Y before CSC. (Y' = Y + YY_OFS) */
+#define SCALER_CSC0_COEF_YY_OFS_MASK VC4_MASK(23, 16)
+#define SCALER_CSC0_COEF_YY_OFS_SHIFT 16
+/* Signed offset to apply to CB before CSC (Cb' = Cb - 128 + CB_OFS). */
+#define SCALER_CSC0_COEF_CB_OFS_MASK VC4_MASK(15, 8)
+#define SCALER_CSC0_COEF_CB_OFS_SHIFT 8
+/* Signed offset to apply to CB before CSC (Cr' = Cr - 128 + CR_OFS). */
+#define SCALER_CSC0_COEF_CR_OFS_MASK VC4_MASK(7, 0)
+#define SCALER_CSC0_COEF_CR_OFS_SHIFT 0
+#define SCALER_CSC0_ITR_R_601_5 0x00f00000
+#define SCALER_CSC0_ITR_R_709_3 0x00f00000
+#define SCALER_CSC0_JPEG_JFIF 0x00000000
+
+/* S2.8 contribution of Cb to Green */
+#define SCALER_CSC1_COEF_CB_GRN_MASK VC4_MASK(31, 22)
+#define SCALER_CSC1_COEF_CB_GRN_SHIFT 22
+/* S2.8 contribution of Cr to Green */
+#define SCALER_CSC1_COEF_CR_GRN_MASK VC4_MASK(21, 12)
+#define SCALER_CSC1_COEF_CR_GRN_SHIFT 12
+/* S2.8 contribution of Y to all of RGB */
+#define SCALER_CSC1_COEF_YY_ALL_MASK VC4_MASK(11, 2)
+#define SCALER_CSC1_COEF_YY_ALL_SHIFT 2
+/* top 2 bits of S2.8 contribution of Cr to Blue */
+#define SCALER_CSC1_COEF_CR_BLU_MASK VC4_MASK(1, 0)
+#define SCALER_CSC1_COEF_CR_BLU_SHIFT 0
+#define SCALER_CSC1_ITR_R_601_5 0xe73304a8
+#define SCALER_CSC1_ITR_R_709_3 0xf2b784a8
+#define SCALER_CSC1_JPEG_JFIF 0xea34a400
+
+/* S2.8 contribution of Cb to Red */
+#define SCALER_CSC2_COEF_CB_RED_MASK VC4_MASK(29, 20)
+#define SCALER_CSC2_COEF_CB_RED_SHIFT 20
+/* S2.8 contribution of Cr to Red */
+#define SCALER_CSC2_COEF_CR_RED_MASK VC4_MASK(19, 10)
+#define SCALER_CSC2_COEF_CR_RED_SHIFT 10
+/* S2.8 contribution of Cb to Blue */
+#define SCALER_CSC2_COEF_CB_BLU_MASK VC4_MASK(19, 10)
+#define SCALER_CSC2_COEF_CB_BLU_SHIFT 10
+#define SCALER_CSC2_ITR_R_601_5 0x00066204
+#define SCALER_CSC2_ITR_R_709_3 0x00072a1c
+#define SCALER_CSC2_JPEG_JFIF 0x000599c5
+
#define SCALER_TPZ0_VERT_RECALC BIT(31)
#define SCALER_TPZ0_SCALE_MASK VC4_MASK(28, 8)
#define SCALER_TPZ0_SCALE_SHIFT 8
projects / platform / kernel / linux-starfive.git / commitdiff