2.6.31-stable review patch. If anyone has any objections, please let us know. ------------------ From: Geoff Levand commit bc00351edd5c1b84d48c3fdca740fedfce4ae6ce upstream. A workaround for flash memory I/O errors when the PS3 internal hard disk has not been formatted for OtherOS use. This error condition mainly effects 'Live CD' users who have not formatted the PS3's internal hard disk for OtherOS. Fixes errors similar to these when using the ps3-flash-util or ps3-boot-game-os programs: ps3flash read failed 0x2050000 os_area_header_read: read error: os_area_header: Input/output error main:627: os_area_read_hp error. ERROR: can't change boot flag Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Greg Kroah-Hartman --- drivers/ps3/ps3stor_lib.c | 65 +++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 62 insertions(+), 3 deletions(-) --- a/drivers/ps3/ps3stor_lib.c +++ b/drivers/ps3/ps3stor_lib.c @@ -23,6 +23,65 @@ #include #include +/* + * A workaround for flash memory I/O errors when the internal hard disk + * has not been formatted for OtherOS use. Delay disk close until flash + * memory is closed. + */ + +static struct ps3_flash_workaround { + int flash_open; + int disk_open; + struct ps3_system_bus_device *disk_sbd; +} ps3_flash_workaround; + +static int ps3stor_open_hv_device(struct ps3_system_bus_device *sbd) +{ + int error = ps3_open_hv_device(sbd); + + if (error) + return error; + + if (sbd->match_id == PS3_MATCH_ID_STOR_FLASH) + ps3_flash_workaround.flash_open = 1; + + if (sbd->match_id == PS3_MATCH_ID_STOR_DISK) + ps3_flash_workaround.disk_open = 1; + + return 0; +} + +static int ps3stor_close_hv_device(struct ps3_system_bus_device *sbd) +{ + int error; + + if (sbd->match_id == PS3_MATCH_ID_STOR_DISK + && ps3_flash_workaround.disk_open + && ps3_flash_workaround.flash_open) { + ps3_flash_workaround.disk_sbd = sbd; + return 0; + } + + error = ps3_close_hv_device(sbd); + + if (error) + return error; + + if (sbd->match_id == PS3_MATCH_ID_STOR_DISK) + ps3_flash_workaround.disk_open = 0; + + if (sbd->match_id == PS3_MATCH_ID_STOR_FLASH) { + ps3_flash_workaround.flash_open = 0; + + if (ps3_flash_workaround.disk_sbd) { + ps3_close_hv_device(ps3_flash_workaround.disk_sbd); + ps3_flash_workaround.disk_open = 0; + ps3_flash_workaround.disk_sbd = NULL; + } + } + + return 0; +} static int ps3stor_probe_access(struct ps3_storage_device *dev) { @@ -90,7 +149,7 @@ int ps3stor_setup(struct ps3_storage_dev int error, res, alignment; enum ps3_dma_page_size page_size; - error = ps3_open_hv_device(&dev->sbd); + error = ps3stor_open_hv_device(&dev->sbd); if (error) { dev_err(&dev->sbd.core, "%s:%u: ps3_open_hv_device failed %d\n", __func__, @@ -166,7 +225,7 @@ fail_free_irq: fail_sb_event_receive_port_destroy: ps3_sb_event_receive_port_destroy(&dev->sbd, dev->irq); fail_close_device: - ps3_close_hv_device(&dev->sbd); + ps3stor_close_hv_device(&dev->sbd); fail: return error; } @@ -193,7 +252,7 @@ void ps3stor_teardown(struct ps3_storage "%s:%u: destroy event receive port failed %d\n", __func__, __LINE__, error); - error = ps3_close_hv_device(&dev->sbd); + error = ps3stor_close_hv_device(&dev->sbd); if (error) dev_err(&dev->sbd.core, "%s:%u: ps3_close_hv_device failed %d\n", __func__, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/