10 #include <soc/tegra/bpmp.h>
11 #include <soc/tegra/bpmp-abi.h>
73 /* map filename in Linux debugfs to corresponding entry in BPMP */
74 static const char *get_filename(struct tegra_bpmp *bpmp,  in get_filename()  argument
85 	root_path = dentry_path(bpmp->debugfs_mirror, root_path_buf,  in get_filename()
110 static int mrq_debug_open(struct tegra_bpmp *bpmp, const char *name,  in mrq_debug_open()  argument
137 	err = tegra_bpmp_transfer(bpmp, &msg);  in mrq_debug_open()
149 static int mrq_debug_close(struct tegra_bpmp *bpmp, uint32_t fd)  in mrq_debug_close()  argument
171 	err = tegra_bpmp_transfer(bpmp, &msg);  in mrq_debug_close()
180 static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name,  in mrq_debug_read()  argument
202 	err = mrq_debug_open(bpmp, name, &fd, &len, 0);  in mrq_debug_read()
215 		err = tegra_bpmp_transfer(bpmp, &msg);  in mrq_debug_read()
237 	err = mrq_debug_close(bpmp, fd);  in mrq_debug_read()
243 static int mrq_debug_write(struct tegra_bpmp *bpmp, const char *name,  in mrq_debug_write()  argument
266 	err = mrq_debug_open(bpmp, name, &fd, &len, 1);  in mrq_debug_write()
283 		err = tegra_bpmp_transfer(bpmp, &msg);  in mrq_debug_write()
296 	err = mrq_debug_close(bpmp, fd);  in mrq_debug_write()
306 	struct tegra_bpmp *bpmp = inode->i_private;  in bpmp_debug_show()  local
318 	filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));  in bpmp_debug_show()
322 	err = mrq_debug_read(bpmp, filename, databuf, len, &nbytes);  in bpmp_debug_show()
333 	struct tegra_bpmp *bpmp = inode->i_private;  in bpmp_debug_store()  local
339 	filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));  in bpmp_debug_store()
352 	err = mrq_debug_write(bpmp, filename, databuf, count);  in bpmp_debug_store()
373 static int bpmp_populate_debugfs_inband(struct tegra_bpmp *bpmp,  in bpmp_populate_debugfs_inband()  argument
386 	if (!bpmp || !parent || !ppath)  in bpmp_populate_debugfs_inband()
399 	err = mrq_debug_read(bpmp, ppath, buf, bufsize, &dsize);  in bpmp_populate_debugfs_inband()
429 			err = bpmp_populate_debugfs_inband(bpmp, dentry,  in bpmp_populate_debugfs_inband()
438 			dentry = debugfs_create_file(name, mode, parent, bpmp,  in bpmp_populate_debugfs_inband()
454 static int mrq_debugfs_read(struct tegra_bpmp *bpmp,  in mrq_debugfs_read()  argument
482 	err = tegra_bpmp_transfer(bpmp, &msg);  in mrq_debugfs_read()
493 static int mrq_debugfs_write(struct tegra_bpmp *bpmp,  in mrq_debugfs_write()  argument
514 	return tegra_bpmp_transfer(bpmp, &msg);  in mrq_debugfs_write()
517 static int mrq_debugfs_dumpdir(struct tegra_bpmp *bpmp, dma_addr_t addr,  in mrq_debugfs_dumpdir()  argument
541 	err = tegra_bpmp_transfer(bpmp, &msg);  in mrq_debugfs_dumpdir()
556 	struct tegra_bpmp *bpmp = inode->i_private;  in debugfs_show()  local
566 	filename = get_filename(bpmp, file, buf, sizeof(buf));  in debugfs_show()
570 	namevirt = dma_alloc_coherent(bpmp->dev, namesize, &namephys,  in debugfs_show()
575 	datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,  in debugfs_show()
585 	err = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,  in debugfs_show()
591 	dma_free_coherent(bpmp->dev, datasize, datavirt, dataphys);  in debugfs_show()
593 	dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);  in debugfs_show()
607 	struct tegra_bpmp *bpmp = inode->i_private;  in debugfs_store()  local
617 	filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));  in debugfs_store()
621 	namevirt = dma_alloc_coherent(bpmp->dev, namesize, &namephys,  in debugfs_store()
626 	datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,  in debugfs_store()
641 	err = mrq_debugfs_write(bpmp, namephys, len, dataphys,  in debugfs_store()
645 	dma_free_coherent(bpmp->dev, datasize, datavirt, dataphys);  in debugfs_store()
647 	dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);  in debugfs_store()
660 static int bpmp_populate_dir(struct tegra_bpmp *bpmp, struct seqbuf *seqbuf,  in bpmp_populate_dir()  argument
678 			/* malformed data received from BPMP */  in bpmp_populate_dir()
693 			err = bpmp_populate_dir(bpmp, seqbuf, dentry, depth+1);  in bpmp_populate_dir()
702 						     parent, bpmp,  in bpmp_populate_dir()
712 static int bpmp_populate_debugfs_shmem(struct tegra_bpmp *bpmp)  in bpmp_populate_debugfs_shmem()  argument
721 	virt = dma_alloc_coherent(bpmp->dev, sz, &phys,  in bpmp_populate_debugfs_shmem()
726 	err = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);  in bpmp_populate_debugfs_shmem()
735 	err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);  in bpmp_populate_debugfs_shmem()
737 	dma_free_coherent(bpmp->dev, sz, virt, phys);  in bpmp_populate_debugfs_shmem()
742 int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)  in tegra_bpmp_init_debugfs()  argument
748 	inband = tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUG);  in tegra_bpmp_init_debugfs()
750 	if (!inband && !tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))  in tegra_bpmp_init_debugfs()
753 	root = debugfs_create_dir("bpmp", NULL);  in tegra_bpmp_init_debugfs()
757 	bpmp->debugfs_mirror = debugfs_create_dir("debug", root);  in tegra_bpmp_init_debugfs()
758 	if (IS_ERR(bpmp->debugfs_mirror)) {  in tegra_bpmp_init_debugfs()
764 		err = bpmp_populate_debugfs_inband(bpmp, bpmp->debugfs_mirror,  in tegra_bpmp_init_debugfs()
767 		err = bpmp_populate_debugfs_shmem(bpmp);  in tegra_bpmp_init_debugfs()