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Message-Id: <20241023-drm-vc4-2712-support-v1-25-1cc2d5594907@raspberrypi.com>
Date: Wed, 23 Oct 2024 17:50:22 +0100
From: Dave Stevenson <dave.stevenson@...pberrypi.com>
To: Maxime Ripard <mripard@...nel.org>,
Maíra Canal <mcanal@...lia.com>,
Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
Simona Vetter <simona@...ll.ch>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Florian Fainelli <florian.fainelli@...adcom.com>,
Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Javier Martinez Canillas <javierm@...hat.com>,
Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
Dave Stevenson <dave.stevenson@...pberrypi.com>
Subject: [PATCH 25/37] drm/vc4: plane: Add support for 2712 D-step.
There are a few minor changes in the display list generation
for the D-step of the chip, so add them.
Signed-off-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
---
drivers/gpu/drm/vc4/vc4_plane.c | 72 ++++++++++++++++++++++++++++++-----------
drivers/gpu/drm/vc4/vc4_regs.h | 9 ++++--
2 files changed, 60 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 5749287f6e3c..205aea3ed419 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -1134,25 +1134,53 @@ static u32 vc4_hvs4_get_alpha_blend_mode(struct drm_plane_state *state)
static u32 vc4_hvs5_get_alpha_blend_mode(struct drm_plane_state *state)
{
- if (!state->fb->format->has_alpha)
- return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_FIXED,
- SCALER5_CTL2_ALPHA_MODE);
+ struct drm_device *dev = state->state->dev;
+ struct vc4_dev *vc4 = to_vc4_dev(dev);
- switch (state->pixel_blend_mode) {
- case DRM_MODE_BLEND_PIXEL_NONE:
- return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_FIXED,
- SCALER5_CTL2_ALPHA_MODE);
+ switch (vc4->gen) {
default:
- case DRM_MODE_BLEND_PREMULTI:
- return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_PIPELINE,
- SCALER5_CTL2_ALPHA_MODE) |
- SCALER5_CTL2_ALPHA_PREMULT;
- case DRM_MODE_BLEND_COVERAGE:
- return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_PIPELINE,
- SCALER5_CTL2_ALPHA_MODE);
+ case VC4_GEN_5:
+ case VC4_GEN_6_C:
+ if (!state->fb->format->has_alpha)
+ return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_FIXED,
+ SCALER5_CTL2_ALPHA_MODE);
+
+ switch (state->pixel_blend_mode) {
+ case DRM_MODE_BLEND_PIXEL_NONE:
+ return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_FIXED,
+ SCALER5_CTL2_ALPHA_MODE);
+ default:
+ case DRM_MODE_BLEND_PREMULTI:
+ return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_PIPELINE,
+ SCALER5_CTL2_ALPHA_MODE) |
+ SCALER5_CTL2_ALPHA_PREMULT;
+ case DRM_MODE_BLEND_COVERAGE:
+ return VC4_SET_FIELD(SCALER5_CTL2_ALPHA_MODE_PIPELINE,
+ SCALER5_CTL2_ALPHA_MODE);
+ }
+ case VC4_GEN_6_D:
+ /* 2712-D configures fixed alpha mode in CTL0 */
+ return state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI ?
+ SCALER5_CTL2_ALPHA_PREMULT : 0;
}
}
+static u32 vc4_hvs6_get_alpha_mask_mode(struct drm_plane_state *state)
+{
+ struct drm_device *dev = state->state->dev;
+ struct vc4_dev *vc4 = to_vc4_dev(dev);
+
+ WARN_ON_ONCE(vc4->gen != VC4_GEN_6_C && vc4->gen != VC4_GEN_6_D);
+
+ if (vc4->gen == VC4_GEN_6_D &&
+ (!state->fb->format->has_alpha ||
+ state->pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE))
+ return VC4_SET_FIELD(SCALER6D_CTL0_ALPHA_MASK_FIXED,
+ SCALER6_CTL0_ALPHA_MASK);
+
+ return VC4_SET_FIELD(SCALER6_CTL0_ALPHA_MASK_NONE, SCALER6_CTL0_ALPHA_MASK);
+}
+
/* Writes out a full display list for an active plane to the plane's
* private dlist state.
*/
@@ -1645,14 +1673,13 @@ static int vc4_plane_mode_set(struct drm_plane *plane,
static u32 vc6_plane_get_csc_mode(struct vc4_plane_state *vc4_state)
{
struct drm_plane_state *state = &vc4_state->base;
+ struct vc4_dev *vc4 = to_vc4_dev(state->plane->dev);
u32 ret = 0;
if (vc4_state->is_yuv) {
enum drm_color_encoding color_encoding = state->color_encoding;
enum drm_color_range color_range = state->color_range;
- ret |= SCALER6_CTL2_CSC_ENABLE;
-
/* CSC pre-loaded with:
* 0 = BT601 limited range
* 1 = BT709 limited range
@@ -1666,8 +1693,15 @@ static u32 vc6_plane_get_csc_mode(struct vc4_plane_state *vc4_state)
if (color_range > DRM_COLOR_YCBCR_FULL_RANGE)
color_range = DRM_COLOR_YCBCR_LIMITED_RANGE;
- ret |= VC4_SET_FIELD(color_encoding + (color_range * 3),
- SCALER6_CTL2_BRCM_CFC_CONTROL);
+ if (vc4->gen == VC4_GEN_6_C) {
+ ret |= SCALER6C_CTL2_CSC_ENABLE;
+ ret |= VC4_SET_FIELD(color_encoding + (color_range * 3),
+ SCALER6C_CTL2_BRCM_CFC_CONTROL);
+ } else {
+ ret |= SCALER6D_CTL2_CSC_ENABLE;
+ ret |= VC4_SET_FIELD(color_encoding + (color_range * 3),
+ SCALER6D_CTL2_BRCM_CFC_CONTROL);
+ }
}
return ret;
@@ -1880,7 +1914,7 @@ static int vc6_plane_mode_set(struct drm_plane *plane,
vc4_dlist_write(vc4_state,
SCALER6_CTL0_VALID |
VC4_SET_FIELD(tiling, SCALER6_CTL0_ADDR_MODE) |
- VC4_SET_FIELD(0, SCALER6_CTL0_ALPHA_MASK) |
+ vc4_hvs6_get_alpha_mask_mode(state) |
(vc4_state->is_unity ? SCALER6_CTL0_UNITY : 0) |
VC4_SET_FIELD(format->pixel_order_hvs5, SCALER6_CTL0_ORDERRGBA) |
VC4_SET_FIELD(scl1, SCALER6_CTL0_SCL1_MODE) |
diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h
index 0efe340f99d4..0046bdb7ca32 100644
--- a/drivers/gpu/drm/vc4/vc4_regs.h
+++ b/drivers/gpu/drm/vc4/vc4_regs.h
@@ -1194,6 +1194,9 @@ enum hvs_pixel_format {
#define SCALER5_CTL2_ALPHA_MASK VC4_MASK(15, 4)
#define SCALER5_CTL2_ALPHA_SHIFT 4
+#define SCALER6D_CTL2_CSC_ENABLE BIT(19)
+#define SCALER6D_CTL2_BRCM_CFC_CONTROL_MASK VC4_MASK(22, 20)
+
#define SCALER_POS1_SCL_HEIGHT_MASK VC4_MASK(27, 16)
#define SCALER_POS1_SCL_HEIGHT_SHIFT 16
@@ -1347,6 +1350,8 @@ enum hvs_pixel_format {
#define SCALER6_CTL0_ADDR_MODE_UIF 4
#define SCALER6_CTL0_ALPHA_MASK_MASK VC4_MASK(19, 18)
+#define SCALER6_CTL0_ALPHA_MASK_NONE 0
+#define SCALER6D_CTL0_ALPHA_MASK_FIXED 3
#define SCALER6_CTL0_UNITY BIT(15)
#define SCALER6_CTL0_ORDERRGBA_MASK VC4_MASK(14, 13)
#define SCALER6_CTL0_SCL1_MODE_MASK VC4_MASK(10, 8)
@@ -1361,8 +1366,8 @@ enum hvs_pixel_format {
#define SCALER6_CTL2_ALPHA_PREMULT BIT(29)
#define SCALER6_CTL2_ALPHA_MIX BIT(28)
#define SCALER6_CTL2_BFG BIT(26)
-#define SCALER6_CTL2_CSC_ENABLE BIT(25)
-#define SCALER6_CTL2_BRCM_CFC_CONTROL_MASK VC4_MASK(18, 16)
+#define SCALER6C_CTL2_CSC_ENABLE BIT(25)
+#define SCALER6C_CTL2_BRCM_CFC_CONTROL_MASK VC4_MASK(18, 16)
#define SCALER6_CTL2_ALPHA_MASK VC4_MASK(15, 4)
#define SCALER6_POS1_SCL_LINES_MASK VC4_MASK(28, 16)
--
2.34.1
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