From e06bcf3cc3a6c45a16e9ffeb0401380aebfdea02 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sat, 19 Jan 2008 07:30:27 +1100 Subject: [PATCH] [POWERPC] PS3: Add ps3_repository_find_device_by_id() The storage probe feature of the PS3 hypervisor returns device IDs. Add the corresponding repository routine ps3_repository_find_device_by_id() which can be used to retrieve the device info from the repository. Signed-off-by: Geert Uytterhoeven Signed-off-by: Geoff Levand Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/ps3/platform.h | 2 + arch/powerpc/platforms/ps3/repository.c | 77 +++++++++++++++++++++++++ 2 files changed, 79 insertions(+) diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h index aa9dddf50172..5c6d1b1db3df 100644 --- a/arch/powerpc/platforms/ps3/platform.h +++ b/arch/powerpc/platforms/ps3/platform.h @@ -153,6 +153,8 @@ static inline struct ps3_repository_device *ps3_repository_bump_device( return repo; } int ps3_repository_find_device(struct ps3_repository_device *repo); +int ps3_repository_find_device_by_id(struct ps3_repository_device *repo, + u64 bus_id, u64 dev_id); int ps3_repository_find_devices(enum ps3_bus_type bus_type, int (*callback)(const struct ps3_repository_device *repo)); int ps3_repository_find_bus(enum ps3_bus_type bus_type, unsigned int from, diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c index 8baf0503d92b..79dfa19613dc 100644 --- a/arch/powerpc/platforms/ps3/repository.c +++ b/arch/powerpc/platforms/ps3/repository.c @@ -389,6 +389,83 @@ int ps3_repository_find_device(struct ps3_repository_device *repo) return 0; } +int ps3_repository_find_device_by_id(struct ps3_repository_device *repo, + u64 bus_id, u64 dev_id) +{ + int result = -ENODEV; + struct ps3_repository_device tmp; + unsigned int num_dev; + + pr_debug(" -> %s:%u: find device by id %lu:%lu\n", __func__, __LINE__, + bus_id, dev_id); + + for (tmp.bus_index = 0; tmp.bus_index < 10; tmp.bus_index++) { + result = ps3_repository_read_bus_id(tmp.bus_index, + &tmp.bus_id); + if (result) { + pr_debug("%s:%u read_bus_id(%u) failed\n", __func__, + __LINE__, tmp.bus_index); + return result; + } + + if (tmp.bus_id == bus_id) + goto found_bus; + + pr_debug("%s:%u: skip, bus_id %lu\n", __func__, __LINE__, + tmp.bus_id); + } + pr_debug(" <- %s:%u: bus not found\n", __func__, __LINE__); + return result; + +found_bus: + result = ps3_repository_read_bus_type(tmp.bus_index, &tmp.bus_type); + if (result) { + pr_debug("%s:%u read_bus_type(%u) failed\n", __func__, + __LINE__, tmp.bus_index); + return result; + } + + result = ps3_repository_read_bus_num_dev(tmp.bus_index, &num_dev); + if (result) { + pr_debug("%s:%u read_bus_num_dev failed\n", __func__, + __LINE__); + return result; + } + + for (tmp.dev_index = 0; tmp.dev_index < num_dev; tmp.dev_index++) { + result = ps3_repository_read_dev_id(tmp.bus_index, + tmp.dev_index, + &tmp.dev_id); + if (result) { + pr_debug("%s:%u read_dev_id(%u:%u) failed\n", __func__, + __LINE__, tmp.bus_index, tmp.dev_index); + return result; + } + + if (tmp.dev_id == dev_id) + goto found_dev; + + pr_debug("%s:%u: skip, dev_id %lu\n", __func__, __LINE__, + tmp.dev_id); + } + pr_debug(" <- %s:%u: dev not found\n", __func__, __LINE__); + return result; + +found_dev: + result = ps3_repository_read_dev_type(tmp.bus_index, tmp.dev_index, + &tmp.dev_type); + if (result) { + pr_debug("%s:%u read_dev_type failed\n", __func__, __LINE__); + return result; + } + + pr_debug(" <- %s:%u: found: type (%u:%u) index (%u:%u) id (%lu:%lu)\n", + __func__, __LINE__, tmp.bus_type, tmp.dev_type, tmp.bus_index, + tmp.dev_index, tmp.bus_id, tmp.dev_id); + *repo = tmp; + return 0; +} + int __devinit ps3_repository_find_devices(enum ps3_bus_type bus_type, int (*callback)(const struct ps3_repository_device *repo)) { -- 2.30.2