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path: root/target/linux/bcm27xx/patches-5.4/950-0232-gpu-vc4-fkms-Switch-to-the-newer-mailbox-frame-buffe.patch
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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0232-gpu-vc4-fkms-Switch-to-the-newer-mailbox-frame-buffe.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0232-gpu-vc4-fkms-Switch-to-the-newer-mailbox-frame-buffe.patch179
1 files changed, 179 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0232-gpu-vc4-fkms-Switch-to-the-newer-mailbox-frame-buffe.patch b/target/linux/bcm27xx/patches-5.4/950-0232-gpu-vc4-fkms-Switch-to-the-newer-mailbox-frame-buffe.patch
new file mode 100644
index 0000000000..fc84f535de
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0232-gpu-vc4-fkms-Switch-to-the-newer-mailbox-frame-buffe.patch
@@ -0,0 +1,179 @@
+From b721bcc62759ae7a2d9730d1121974702be96d7c Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 26 Mar 2019 14:43:06 +0000
+Subject: [PATCH] gpu: vc4-fkms: Switch to the newer mailbox frame
+ buffer API.
+
+The old mailbox FB API was ideally deprecated but still used by
+the FKMS driver.
+Update to the newer API.
+
+NB This needs current firmware that accepts ARM allocated buffers
+through the newer API.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 109 +++++++++++++------------
+ 1 file changed, 57 insertions(+), 52 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -30,6 +30,25 @@
+ #include "vc4_regs.h"
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+
++struct fb_alloc_tags {
++ struct rpi_firmware_property_tag_header tag1;
++ u32 xres, yres;
++ struct rpi_firmware_property_tag_header tag2;
++ u32 xres_virtual, yres_virtual;
++ struct rpi_firmware_property_tag_header tag3;
++ u32 bpp;
++ struct rpi_firmware_property_tag_header tag4;
++ u32 xoffset, yoffset;
++ struct rpi_firmware_property_tag_header tag5;
++ u32 base, screen_size;
++ struct rpi_firmware_property_tag_header tag6;
++ u32 pitch;
++ struct rpi_firmware_property_tag_header tag7;
++ u32 alpha_mode;
++ struct rpi_firmware_property_tag_header tag8;
++ u32 layer;
++};
++
+ /* The firmware delivers a vblank interrupt to us through the SMI
+ * hardware, which has only this one register.
+ */
+@@ -123,45 +142,39 @@ static void vc4_primary_plane_atomic_upd
+ struct drm_plane_state *old_state)
+ {
+ struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
+- struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane);
+ struct drm_plane_state *state = plane->state;
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
+- volatile struct fbinfo_s *fbinfo = vc4_plane->fbinfo;
++ u32 format = fb->format->format;
++ struct fb_alloc_tags fbinfo = {
++ .tag1 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT,
++ 8, 0, },
++ .xres = state->crtc_w,
++ .yres = state->crtc_h,
++ .tag2 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT,
++ 8, 0, },
++ .xres_virtual = state->crtc_w,
++ .yres_virtual = state->crtc_h,
++ .tag3 = { RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH, 4, 0 },
++ .bpp = 32,
++ .tag4 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET, 8, 0 },
++ .xoffset = 0,
++ .yoffset = 0,
++ .tag5 = { RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE, 8, 0 },
++ .base = bo->paddr + fb->offsets[0],
++ .screen_size = state->crtc_w * state->crtc_h * 4,
++ .tag6 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PITCH, 4, 0 },
++ .pitch = fb->pitches[0],
++ .tag7 = { RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE, 4, 0 },
++ .alpha_mode = format == DRM_FORMAT_ARGB8888 ? 0 : 2,
++ .tag8 = { RPI_FIRMWARE_FRAMEBUFFER_SET_LAYER, 4, 0 },
++ .layer = -127,
++ };
+ u32 bpp = 32;
+ int ret;
+
+- fbinfo->xres = state->crtc_w;
+- fbinfo->yres = state->crtc_h;
+- fbinfo->xres_virtual = state->crtc_w;
+- fbinfo->yres_virtual = state->crtc_h;
+- fbinfo->bpp = bpp;
+- fbinfo->xoffset = state->crtc_x;
+- fbinfo->yoffset = state->crtc_y;
+- fbinfo->base = bo->paddr + fb->offsets[0];
+- fbinfo->pitch = fb->pitches[0];
+-
+ if (fb->modifier == DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED)
+- fbinfo->bpp |= BIT(31);
+-
+- /* A bug in the firmware makes it so that if the fb->base is
+- * set to nonzero, the configured pitch gets overwritten with
+- * the previous pitch. So, to get the configured pitch
+- * recomputed, we have to make it allocate itself a new buffer
+- * in VC memory, first.
+- */
+- if (vc4_plane->pitch != fb->pitches[0]) {
+- u32 saved_base = fbinfo->base;
+- fbinfo->base = 0;
+-
+- ret = rpi_firmware_transaction(vc4->firmware,
+- RPI_FIRMWARE_CHAN_FB,
+- vc4_plane->fbinfo_bus_addr);
+- fbinfo->base = saved_base;
+-
+- vc4_plane->pitch = fbinfo->pitch;
+- WARN_ON_ONCE(vc4_plane->pitch != fb->pitches[0]);
+- }
++ fbinfo.bpp |= BIT(31);
+
+ DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary update %dx%d@%d +%d,%d 0x%pad/%d\n",
+ plane->base.id, plane->name,
+@@ -170,14 +183,13 @@ static void vc4_primary_plane_atomic_upd
+ bpp,
+ state->crtc_x,
+ state->crtc_y,
+- &fbinfo->base,
++ &fbinfo.base,
+ fb->pitches[0]);
+
+- ret = rpi_firmware_transaction(vc4->firmware,
+- RPI_FIRMWARE_CHAN_FB,
+- vc4_plane->fbinfo_bus_addr);
+- WARN_ON_ONCE(fbinfo->pitch != fb->pitches[0]);
+- WARN_ON_ONCE(fbinfo->base != bo->paddr + fb->offsets[0]);
++ ret = rpi_firmware_property_list(vc4->firmware, &fbinfo,
++ sizeof(fbinfo));
++ WARN_ON_ONCE(fbinfo.pitch != fb->pitches[0]);
++ WARN_ON_ONCE(fbinfo.base != bo->paddr + fb->offsets[0]);
+
+ /* If the CRTC is on (or going to be on) and we're enabled,
+ * then unblank. Otherwise, stay blank until CRTC enable.
+@@ -333,10 +345,10 @@ static const struct drm_plane_helper_fun
+ static struct drm_plane *vc4_fkms_plane_init(struct drm_device *dev,
+ enum drm_plane_type type)
+ {
++ /* Primary and cursor planes only */
+ struct drm_plane *plane = NULL;
+ struct vc4_fkms_plane *vc4_plane;
+- u32 xrgb8888 = DRM_FORMAT_XRGB8888;
+- u32 argb8888 = DRM_FORMAT_ARGB8888;
++ u32 formats[] = {DRM_FORMAT_ARGB8888, DRM_FORMAT_XRGB8888};
+ int ret = 0;
+ bool primary = (type == DRM_PLANE_TYPE_PRIMARY);
+ static const uint64_t modifiers[] = {
+@@ -358,22 +370,15 @@ static struct drm_plane *vc4_fkms_plane_
+ plane = &vc4_plane->base;
+ ret = drm_universal_plane_init(dev, plane, 0xff,
+ &vc4_plane_funcs,
+- primary ? &xrgb8888 : &argb8888, 1,
+- modifiers,
++ formats, primary ? 2 : 1, modifiers,
+ type, primary ? "primary" : "cursor");
+
+- if (type == DRM_PLANE_TYPE_PRIMARY) {
+- vc4_plane->fbinfo =
+- dma_alloc_coherent(dev->dev,
+- sizeof(*vc4_plane->fbinfo),
+- &vc4_plane->fbinfo_bus_addr,
+- GFP_KERNEL);
+- memset(vc4_plane->fbinfo, 0, sizeof(*vc4_plane->fbinfo));
+-
++ if (type == DRM_PLANE_TYPE_PRIMARY)
+ drm_plane_helper_add(plane, &vc4_primary_plane_helper_funcs);
+- } else {
++ else
+ drm_plane_helper_add(plane, &vc4_cursor_plane_helper_funcs);
+- }
++
++ drm_plane_create_alpha_property(plane);
+
+ return plane;
+ fail:
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 17:46:29 +0000