kernel/drivers/platform/goldfish, branch linux-4.1.y

goldfish: Sanitize the broken interrupt handler

2017-05-17T19:06:59Z

[ Upstream commit 6cf18e6927c0b224f972e3042fb85770d63cb9f8 ] This interrupt handler is broken in several ways: - It loops forever when the op code is not decodeable - It never returns IRQ_HANDLED because the only way to exit the loop returns IRQ_NONE unconditionally. The whole concept of this is broken. Creating devices in an interrupt handler is beyond any point of sanity. Make it at least behave halfways sane so accidental users do not have to deal with a hard to debug lockup. Fixes: e809c22b8fb028 ("goldfish: add the goldfish virtual bus") Reported-by: Gabriel C Signed-off-by: Thomas Gleixner Acked-by: Linus Torvalds Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

goldfish: pipe: fix warnings for 32bit builds

2014-05-16T18:32:51Z

drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_cmd_status': drivers/platform/goldfish/goldfish_pipe.c:164:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL); ^ drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_cmd': drivers/platform/goldfish/goldfish_pipe.c:180:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL); ^ drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_pipe_read_write': drivers/platform/goldfish/goldfish_pipe.c:337:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] writel((u32)(u64)pipe, dev->base + PIPE_REG_CHANNEL); Reported-by: Fengguang Wu Cc: Jun Tian Acked-by: Alan Cox Signed-off-by: Octavian Purdila Signed-off-by: Greg Kroah-Hartman

goldfish: bus: fix warnings for 32bit builds

2014-05-16T18:32:51Z

drivers/platform/goldfish/pdev_bus.c: In function 'goldfish_new_pdev': drivers/platform/goldfish/pdev_bus.c:136:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] writel((u32)(u64)name, pdev_bus_base + PDEV_BUS_GET_NAME); Reported-by: Fengguang Wu Cc: Jun Tian Acked-by: Alan Cox Signed-off-by: Octavian Purdila Signed-off-by: Greg Kroah-Hartman

goldfish: clean up the pipe driver 64bit ifdefs

2014-05-15T20:20:42Z

Use the 64bit helper method to scrub most of the ifdefs from the driver. The pipe reading has a funny case we can't scrub completely. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

goldfish: add support for 64bit to the virtual bus

2014-05-15T20:19:00Z

This patchs adds a new register to pass the upper 32bits for the device name address when running in 64bit mode. Signed-off-by: Octavian Purdila Signed-off-by: Jun Tian Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

goldfish: fix kernel panic when using multiple adb connection

2014-05-15T20:19:00Z

When using multiple adb on 64 bit kernel to transfer data, the goldfish pipe interrupt will crash the kernel. Signed-off-by: Jun Tian Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

goldfish: 64-bit pipe driver for goldfish platform

2014-05-15T20:19:00Z

Support 64-bit channel and address for the goldfish pipe driver. Signed-off-by: Jun Tian Signed-off-by: Octavian Purdila Signed-off-by: Brian Wood Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

goldfish bus: don't call request_mem_region

2014-05-03T23:48:09Z

This is a bug fix that has been lurking in the Google tree but not pushed upstream. From: Octavian Purdila The memory region is already reserved in goldfish_init() during platform init. Signed-off-by: Octavian Purdila Signed-off-by: Jun Tian Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

goldfish: Add a FIXME note to the pipe driver

2013-01-24T21:51:38Z

Note a point in the pipe driver that wants future attention Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

goldfish: add QEMU pipe driver

2013-01-24T21:49:34Z

A QEMU pipe is a very fast communication channel between the guest system and the emulator. Usage from the guest is simply something like; // connect to special device fd = open("/dev/qemu_pipe", O_RDWR); // tell which service we want to talk to (must be zero-terminated) write(fd, "pipeName", strlen("pipeName")+1); // do read()/write() through fd now ... // close channel close(fd); Signed-off-by: David 'Digit' Turner [Added support for parameter buffers for speed] igned-off-by: Xin, Xiaohui Signed-off-by: Jiang, Yunhong Signed-off-by: Nakajima, Jun [Ported to 3.6] Signed-off-by: Tom Keel [Ported to 3.7, moved to platform/goldfish] Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman