1 files changed, 265 insertions, 0 deletions

diff --git a/drivers/staging/media/ipu3/ipu3-css-fw.c b/drivers/staging/media/ipu3/ipu3-css-fw.c
new file mode 100644
index 000000000000..55861aa8fb03
--- /dev/null
+++ b/drivers/staging/media/ipu3/ipu3-css-fw.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Intel Corporation
+
+#include <linux/device.h>
+#include <linux/firmware.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#include "ipu3-css.h"
+#include "ipu3-css-fw.h"
+#include "ipu3-dmamap.h"
+
+static void ipu3_css_fw_show_binary(struct device *dev, struct imgu_fw_info *bi,
+				    const char *name)
+{
+	unsigned int i;
+
+	dev_dbg(dev, "found firmware binary type %i size %i name %s\n",
+		bi->type, bi->blob.size, name);
+	if (bi->type != IMGU_FW_ISP_FIRMWARE)
+		return;
+
+	dev_dbg(dev, "    id %i mode %i bds 0x%x veceven %i/%i out_pins %i\n",
+		bi->info.isp.sp.id, bi->info.isp.sp.pipeline.mode,
+		bi->info.isp.sp.bds.supported_bds_factors,
+		bi->info.isp.sp.enable.vf_veceven,
+		bi->info.isp.sp.vf_dec.is_variable,
+		bi->info.isp.num_output_pins);
+
+	dev_dbg(dev, "    input (%i,%i)-(%i,%i) formats %s%s%s\n",
+		bi->info.isp.sp.input.min_width,
+		bi->info.isp.sp.input.min_height,
+		bi->info.isp.sp.input.max_width,
+		bi->info.isp.sp.input.max_height,
+		bi->info.isp.sp.enable.input_yuv ? "yuv420 " : "",
+		bi->info.isp.sp.enable.input_feeder ||
+		bi->info.isp.sp.enable.input_raw ? "raw8 raw10 " : "",
+		bi->info.isp.sp.enable.input_raw ? "raw12" : "");
+
+	dev_dbg(dev, "    internal (%i,%i)\n",
+		bi->info.isp.sp.internal.max_width,
+		bi->info.isp.sp.internal.max_height);
+
+	dev_dbg(dev, "    output (%i,%i)-(%i,%i) formats",
+		bi->info.isp.sp.output.min_width,
+		bi->info.isp.sp.output.min_height,
+		bi->info.isp.sp.output.max_width,
+		bi->info.isp.sp.output.max_height);
+	for (i = 0; i < bi->info.isp.num_output_formats; i++)
+		dev_dbg(dev, " %i", bi->info.isp.output_formats[i]);
+	dev_dbg(dev, " vf");
+	for (i = 0; i < bi->info.isp.num_vf_formats; i++)
+		dev_dbg(dev, " %i", bi->info.isp.vf_formats[i]);
+	dev_dbg(dev, "\n");
+}
+
+unsigned int ipu3_css_fw_obgrid_size(const struct imgu_fw_info *bi)
+{
+	unsigned int width = DIV_ROUND_UP(bi->info.isp.sp.internal.max_width,
+					  IMGU_OBGRID_TILE_SIZE * 2) + 1;
+	unsigned int height = DIV_ROUND_UP(bi->info.isp.sp.internal.max_height,
+					   IMGU_OBGRID_TILE_SIZE * 2) + 1;
+	unsigned int obgrid_size;
+
+	width = ALIGN(width, IPU3_UAPI_ISP_VEC_ELEMS / 4);
+	obgrid_size = PAGE_ALIGN(width * height *
+				 sizeof(struct ipu3_uapi_obgrid_param)) *
+				 bi->info.isp.sp.iterator.num_stripes;
+	return obgrid_size;
+}
+
+void *ipu3_css_fw_pipeline_params(struct ipu3_css *css, unsigned int pipe,
+				  enum imgu_abi_param_class cls,
+				  enum imgu_abi_memories mem,
+				  struct imgu_fw_isp_parameter *par,
+				  size_t par_size, void *binary_params)
+{
+	struct imgu_fw_info *bi =
+		&css->fwp->binary_header[css->pipes[pipe].bindex];
+
+	if (par->offset + par->size >
+	    bi->info.isp.sp.mem_initializers.params[cls][mem].size)
+		return NULL;
+
+	if (par->size != par_size)
+		pr_warn("parameter size doesn't match defined size\n");
+
+	if (par->size < par_size)
+		return NULL;
+
+	return binary_params + par->offset;
+}
+
+void ipu3_css_fw_cleanup(struct ipu3_css *css)
+{
+	struct imgu_device *imgu = dev_get_drvdata(css->dev);
+
+	if (css->binary) {
+		unsigned int i;
+
+		for (i = 0; i < css->fwp->file_header.binary_nr; i++)
+			ipu3_dmamap_free(imgu, &css->binary[i]);
+		kfree(css->binary);
+	}
+	if (css->fw)
+		release_firmware(css->fw);
+
+	css->binary = NULL;
+	css->fw = NULL;
+}
+
+int ipu3_css_fw_init(struct ipu3_css *css)
+{
+	static const u32 BLOCK_MAX = 65536;
+	struct imgu_device *imgu = dev_get_drvdata(css->dev);
+	struct device *dev = css->dev;
+	unsigned int i, j, binary_nr;
+	int r;
+
+	r = request_firmware(&css->fw, IMGU_FW_NAME, css->dev);
+	if (r)
+		return r;
+
+	/* Check and display fw header info */
+
+	css->fwp = (struct imgu_fw_header *)css->fw->data;
+	if (css->fw->size < sizeof(struct imgu_fw_header *) ||
+	    css->fwp->file_header.h_size != sizeof(struct imgu_fw_bi_file_h))
+		goto bad_fw;
+	if (sizeof(struct imgu_fw_bi_file_h) +
+	    css->fwp->file_header.binary_nr * sizeof(struct imgu_fw_info) >
+	    css->fw->size)
+		goto bad_fw;
+
+	dev_info(dev, "loaded firmware version %.64s, %u binaries, %zu bytes\n",
+		 css->fwp->file_header.version, css->fwp->file_header.binary_nr,
+		 css->fw->size);
+
+	/* Validate and display info on fw binaries */
+
+	binary_nr = css->fwp->file_header.binary_nr;
+
+	css->fw_bl = -1;
+	css->fw_sp[0] = -1;
+	css->fw_sp[1] = -1;
+
+	for (i = 0; i < binary_nr; i++) {
+		struct imgu_fw_info *bi = &css->fwp->binary_header[i];
+		const char *name = (void *)css->fwp + bi->blob.prog_name_offset;
+		size_t len;
+
+		if (bi->blob.prog_name_offset >= css->fw->size)
+			goto bad_fw;
+		len = strnlen(name, css->fw->size - bi->blob.prog_name_offset);
+		if (len + 1 > css->fw->size - bi->blob.prog_name_offset ||
+		    len + 1 >= IMGU_ABI_MAX_BINARY_NAME)
+			goto bad_fw;
+
+		if (bi->blob.size != bi->blob.text_size + bi->blob.icache_size
+		    + bi->blob.data_size + bi->blob.padding_size)
+			goto bad_fw;
+		if (bi->blob.offset + bi->blob.size > css->fw->size)
+			goto bad_fw;
+
+		if (bi->type == IMGU_FW_BOOTLOADER_FIRMWARE) {
+			css->fw_bl = i;
+			if (bi->info.bl.sw_state >= css->iomem_length ||
+			    bi->info.bl.num_dma_cmds >= css->iomem_length ||
+			    bi->info.bl.dma_cmd_list >= css->iomem_length)
+				goto bad_fw;
+		}
+		if (bi->type == IMGU_FW_SP_FIRMWARE ||
+		    bi->type == IMGU_FW_SP1_FIRMWARE) {
+			css->fw_sp[bi->type == IMGU_FW_SP_FIRMWARE ? 0 : 1] = i;
+			if (bi->info.sp.per_frame_data >= css->iomem_length ||
+			    bi->info.sp.init_dmem_data >= css->iomem_length ||
+			    bi->info.sp.host_sp_queue >= css->iomem_length ||
+			    bi->info.sp.isp_started >= css->iomem_length ||
+			    bi->info.sp.sw_state >= css->iomem_length ||
+			    bi->info.sp.sleep_mode >= css->iomem_length ||
+			    bi->info.sp.invalidate_tlb >= css->iomem_length ||
+			    bi->info.sp.host_sp_com >= css->iomem_length ||
+			    bi->info.sp.output + 12 >= css->iomem_length ||
+			    bi->info.sp.host_sp_queues_initialized >=
+			    css->iomem_length)
+				goto bad_fw;
+		}
+		if (bi->type != IMGU_FW_ISP_FIRMWARE)
+			continue;
+
+		if (bi->info.isp.sp.pipeline.mode >= IPU3_CSS_PIPE_ID_NUM)
+			goto bad_fw;
+
+		if (bi->info.isp.sp.iterator.num_stripes >
+		    IPU3_UAPI_MAX_STRIPES)
+			goto bad_fw;
+
+		if (bi->info.isp.num_vf_formats > IMGU_ABI_FRAME_FORMAT_NUM ||
+		    bi->info.isp.num_output_formats > IMGU_ABI_FRAME_FORMAT_NUM)
+			goto bad_fw;
+
+		for (j = 0; j < bi->info.isp.num_output_formats; j++)
+			if (bi->info.isp.output_formats[j] < 0 ||
+			    bi->info.isp.output_formats[j] >=
+			    IMGU_ABI_FRAME_FORMAT_NUM)
+				goto bad_fw;
+		for (j = 0; j < bi->info.isp.num_vf_formats; j++)
+			if (bi->info.isp.vf_formats[j] < 0 ||
+			    bi->info.isp.vf_formats[j] >=
+			    IMGU_ABI_FRAME_FORMAT_NUM)
+				goto bad_fw;
+
+		if (bi->info.isp.sp.block.block_width <= 0 ||
+		    bi->info.isp.sp.block.block_width > BLOCK_MAX ||
+		    bi->info.isp.sp.block.output_block_height <= 0 ||
+		    bi->info.isp.sp.block.output_block_height > BLOCK_MAX)
+			goto bad_fw;
+
+		if (bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_PARAM]
+		    + sizeof(struct imgu_fw_param_memory_offsets) >
+		    css->fw->size ||
+		    bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_CONFIG]
+		    + sizeof(struct imgu_fw_config_memory_offsets) >
+		    css->fw->size ||
+		    bi->blob.memory_offsets.offsets[IMGU_ABI_PARAM_CLASS_STATE]
+		    + sizeof(struct imgu_fw_state_memory_offsets) >
+		    css->fw->size)
+			goto bad_fw;
+
+		ipu3_css_fw_show_binary(dev, bi, name);
+	}
+
+	if (css->fw_bl == -1 || css->fw_sp[0] == -1 || css->fw_sp[1] == -1)
+		goto bad_fw;
+
+	/* Allocate and map fw binaries into IMGU */
+
+	css->binary = kcalloc(binary_nr, sizeof(*css->binary), GFP_KERNEL);
+	if (!css->binary) {
+		r = -ENOMEM;
+		goto error_out;
+	}
+
+	for (i = 0; i < css->fwp->file_header.binary_nr; i++) {
+		struct imgu_fw_info *bi = &css->fwp->binary_header[i];
+		void *blob = (void *)css->fwp + bi->blob.offset;
+		size_t size = bi->blob.size;
+
+		if (!ipu3_dmamap_alloc(imgu, &css->binary[i], size)) {
+			r = -ENOMEM;
+			goto error_out;
+		}
+		memcpy(css->binary[i].vaddr, blob, size);
+	}
+
+	return 0;
+
+bad_fw:
+	dev_err(dev, "invalid firmware binary, size %u\n", (int)css->fw->size);
+	r = -ENODEV;
+
+error_out:
+	ipu3_css_fw_cleanup(css);
+	return r;
+}