/* * C-Media CMI8787 driver for the Studio Evolution SE6X * * Copyright (c) Clemens Ladisch * * This driver is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2. * * This driver is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this driver; if not, see . */ /* * CMI8787: * * SPI -> microcontroller (not actually used) * GPIO 0 -> do. * GPIO 2 -> do. * * DAC0 -> both PCM1792A (L+R, each in mono mode) * ADC1 <- 1st PCM1804 * ADC2 <- 2nd PCM1804 * ADC3 <- 3rd PCM1804 */ #include #include #include #include #include #include #include "oxygen.h" MODULE_AUTHOR("Clemens Ladisch "); MODULE_DESCRIPTION("Studio Evolution SE6X driver"); MODULE_LICENSE("GPL v2"); MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "card index"); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string"); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "enable card"); static const struct pci_device_id se6x_ids[] = { { OXYGEN_PCI_SUBID(0x13f6, 0x8788) }, { } }; MODULE_DEVICE_TABLE(pci, se6x_ids); static void se6x_init(struct oxygen *chip) { oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005); snd_component_add(chip->card, "PCM1792A"); snd_component_add(chip->card, "PCM1804"); } static int se6x_control_filter(struct snd_kcontrol_new *template) { /* no DAC volume/mute */ if (!strncmp(template->name, "Master Playback ", 16)) return 1; return 0; } static void se6x_cleanup(struct oxygen *chip) { } static void set_pcm1792a_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { /* nothing to do (the microcontroller monitors DAC_LRCK) */ } static void set_pcm1804_params(struct oxygen *chip, struct snd_pcm_hw_params *params) { } static unsigned int se6x_adjust_dac_routing(struct oxygen *chip, unsigned int play_routing) { /* route the same stereo pair to DAC0 and DAC1 */ return ( play_routing & OXYGEN_PLAY_DAC0_SOURCE_MASK) | ((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK); } static const struct oxygen_model model_se6x = { .shortname = "Studio Evolution SE6X", .longname = "C-Media Oxygen HD Audio", .chip = "CMI8787", .init = se6x_init, .control_filter = se6x_control_filter, .cleanup = se6x_cleanup, .set_dac_params = set_pcm1792a_params, .set_adc_params = set_pcm1804_params, .adjust_dac_routing = se6x_adjust_dac_routing, .device_config = PLAYBACK_0_TO_I2S | CAPTURE_0_FROM_I2S_1 | CAPTURE_2_FROM_I2S_2 | CAPTURE_3_FROM_I2S_3, .dac_channels_pcm = 2, .function_flags = OXYGEN_FUNCTION_SPI, .dac_mclks = OXYGEN_MCLKS(256, 128, 128), .adc_mclks = OXYGEN_MCLKS(256, 256, 128), .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST, .adc_i2s_format = OXYGEN_I2S_FORMAT_I2S, }; static int se6x_get_model(struct oxygen *chip, const struct pci_device_id *pci_id) { chip->model = model_se6x; return 0; } static int se6x_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; int err; if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { ++dev; return -ENOENT; } err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE, se6x_ids, se6x_get_model); if (err >= 0) ++dev; return err; } static struct pci_driver se6x_driver = { .name = KBUILD_MODNAME, .id_table = se6x_ids, .probe = se6x_probe, .remove = oxygen_pci_remove, #ifdef CONFIG_PM_SLEEP .driver = { .pm = &oxygen_pci_pm, }, #endif .shutdown = oxygen_pci_shutdown, }; module_pci_driver(se6x_driver); 5space:mode:
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /include/net/dn_dev.h
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/net/dn_dev.h')