brcm2708: update to latest patches from RPi foundation

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 164 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0489-Revert-video-bcm2708_fb-Try-allocating-on-the-ARM-an.patch b/target/linux/brcm2708/patches-4.19/950-0489-Revert-video-bcm2708_fb-Try-allocating-on-the-ARM-an.patch
new file mode 100644
index 0000000000..ff62315111
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0489-Revert-video-bcm2708_fb-Try-allocating-on-the-ARM-an.patch
@@ -0,0 +1,164 @@
+From 04480e9068abb6ce7f0bf7ee73c5a00cc854a04d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 13 May 2019 17:34:29 +0100
+Subject: [PATCH 489/773] Revert "video: bcm2708_fb: Try allocating on the ARM
+ and passing to VPU"
+
+This reverts commit ca36c709fce57e8023d2b8b354376bf161601a49.
+
+The driver tries a cma_alloc to avoid using gpu_mem, but should
+that fail the core code is logging an error with no easy way to
+test whether it will succeed or fail first.
+
+Revert until we either totally give up on gpu_mem and increase
+CMA always, or find a way to try an allocation.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/video/fbdev/bcm2708_fb.c           | 102 +++------------------
+ include/soc/bcm2835/raspberrypi-firmware.h |   1 -
+ 2 files changed, 12 insertions(+), 91 deletions(-)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -98,11 +98,6 @@ struct bcm2708_fb {
+ 	struct bcm2708_fb_stats stats;
+ 	unsigned long fb_bus_address;
+ 	struct { u32 base, length; } gpu;
+-
+-	bool disable_arm_alloc;
+-	unsigned int image_size;
+-	dma_addr_t dma_addr;
+-	void *cpuaddr;
+ };
+ 
+ #define to_bcm2708(info)	container_of(info, struct bcm2708_fb, fb)
+@@ -288,88 +283,23 @@ static int bcm2708_fb_set_par(struct fb_
+ 			.xoffset = info->var.xoffset,
+ 			.yoffset = info->var.yoffset,
+ 		.tag5 = { RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE, 8, 0 },
+-			/* base and screen_size will be initialised later */
+-		.tag6 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PITCH, 4, 0 },
+-			/* pitch will be initialised later */
++			.base = 0,
++			.screen_size = 0,
++		.tag6 = { RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH, 4, 0 },
++			.pitch = 0,
+ 	};
+-	int ret, image_size;
+-
++	int ret;
+ 
+ 	print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n", __func__, info,
+ 		    info->var.xres, info->var.yres, info->var.xres_virtual,
+ 		    info->var.yres_virtual, (int)info->screen_size,
+ 		    info->var.bits_per_pixel);
+ 
+-	/* Try allocating our own buffer. We can specify all the parameters */
+-	image_size = ((info->var.xres * info->var.yres) *
+-		      info->var.bits_per_pixel) >> 3;
+-
+-	if (!fb->disable_arm_alloc &&
+-	    (image_size != fb->image_size || !fb->dma_addr)) {
+-		if (fb->dma_addr) {
+-			dma_free_coherent(info->device, fb->image_size,
+-					  fb->cpuaddr, fb->dma_addr);
+-			fb->image_size = 0;
+-			fb->cpuaddr = NULL;
+-			fb->dma_addr = 0;
+-		}
+-
+-		fb->cpuaddr = dma_alloc_coherent(info->device, image_size,
+-						 &fb->dma_addr, GFP_KERNEL);
+-
+-		if (!fb->cpuaddr) {
+-			fb->dma_addr = 0;
+-			fb->disable_arm_alloc = true;
+-		} else {
+-			fb->image_size = image_size;
+-		}
+-	}
+-
+-	if (fb->cpuaddr) {
+-		fbinfo.base = fb->dma_addr;
+-		fbinfo.screen_size = image_size;
+-		fbinfo.pitch = (info->var.xres * info->var.bits_per_pixel) >> 3;
+-
+-		ret = rpi_firmware_property_list(fb->fw, &fbinfo,
+-						 sizeof(fbinfo));
+-		if (ret || fbinfo.base != fb->dma_addr) {
+-			/* Firmware either failed, or assigned a different base
+-			 * address (ie it doesn't support being passed an FB
+-			 * allocation).
+-			 * Destroy the allocation, and don't try again.
+-			 */
+-			dma_free_coherent(info->device, fb->image_size,
+-					  fb->cpuaddr, fb->dma_addr);
+-			fb->image_size = 0;
+-			fb->cpuaddr = NULL;
+-			fb->dma_addr = 0;
+-			fb->disable_arm_alloc = true;
+-		}
+-	} else {
+-		/* Our allocation failed - drop into the old scheme of
+-		 * allocation by the VPU.
+-		 */
+-		ret = -ENOMEM;
+-	}
+-
++	ret = rpi_firmware_property_list(fb->fw, &fbinfo, sizeof(fbinfo));
+ 	if (ret) {
+-		/* Old scheme:
+-		 * - FRAMEBUFFER_ALLOCATE passes 0 for base and screen_size.
+-		 * - GET_PITCH instead of SET_PITCH.
+-		 */
+-		fbinfo.base = 0;
+-		fbinfo.screen_size = 0;
+-		fbinfo.tag6.tag = RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH;
+-		fbinfo.pitch = 0;
+-
+-		ret = rpi_firmware_property_list(fb->fw, &fbinfo,
+-						 sizeof(fbinfo));
+-		if (ret) {
+-			dev_err(info->device,
+-				"Failed to allocate GPU framebuffer (%d)\n",
+-				ret);
+-			return ret;
+-		}
++		dev_err(info->device,
++			"Failed to allocate GPU framebuffer (%d)\n", ret);
++		return ret;
+ 	}
+ 
+ 	if (info->var.bits_per_pixel <= 8)
+@@ -384,17 +314,9 @@ static int bcm2708_fb_set_par(struct fb_
+ 	fb->fb.fix.smem_start = fbinfo.base;
+ 	fb->fb.fix.smem_len = fbinfo.pitch * fbinfo.yres_virtual;
+ 	fb->fb.screen_size = fbinfo.screen_size;
+-
+-	if (!fb->dma_addr) {
+-		if (fb->fb.screen_base)
+-			iounmap(fb->fb.screen_base);
+-
+-		fb->fb.screen_base = ioremap_wc(fbinfo.base,
+-						fb->fb.screen_size);
+-	} else {
+-		fb->fb.screen_base = fb->cpuaddr;
+-	}
+-
++	if (fb->fb.screen_base)
++		iounmap(fb->fb.screen_base);
++	fb->fb.screen_base = ioremap_wc(fbinfo.base, fb->fb.screen_size);
+ 	if (!fb->fb.screen_base) {
+ 		/* the console may currently be locked */
+ 		console_trylock();
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -128,7 +128,6 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH =                  0x00048005,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_PIXEL_ORDER =            0x00048006,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE =             0x00048007,
+-	RPI_FIRMWARE_FRAMEBUFFER_SET_PITCH =                  0x00048008,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET =         0x00048009,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN =               0x0004800a,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE =                0x0004800b,