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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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7c11af9fcd
The existing code uses two handlers for a shared edge-based MSI interrupts. In corner cases, interrupts are lost, leading to IPC timeouts. Those timeouts do not appear in legacy mode. This patch merges the two handlers and threads into a single one, and simplifies the mask/unmask operations by using a single top-level mask (Global Interrupt Enable). The handler only checks for interrupt sources using the Global Interrupt Status (GIS) field, and all the actual work happens in the thread. This also enables us to remove the use of spin locks. Stream events are prioritized over IPC ones. This patch was tested with HDaudio and SoundWire platforms, and all known IPC timeout issues are solved in MSI mode. The SoundWire-specific patches will be provided in follow-up patches, where the SoundWire interrupts are handled in the same thread as IPC and stream interrupts. Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191204212859.13239-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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| adi | ||
| amd | ||
| atmel | ||
| au1x | ||
| bcm | ||
| cirrus | ||
| codecs | ||
| dwc | ||
| fsl | ||
| generic | ||
| hisilicon | ||
| img | ||
| intel | ||
| jz4740 | ||
| kirkwood | ||
| mediatek | ||
| meson | ||
| mxs | ||
| pxa | ||
| qcom | ||
| rockchip | ||
| samsung | ||
| sh | ||
| sirf | ||
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| spear | ||
| sprd | ||
| sti | ||
| stm | ||
| sunxi | ||
| tegra | ||
| ti | ||
| txx9 | ||
| uniphier | ||
| ux500 | ||
| xilinx | ||
| xtensa | ||
| zte | ||
| Kconfig | ||
| Makefile | ||
| soc-ac97.c | ||
| soc-acpi.c | ||
| soc-component.c | ||
| soc-compress.c | ||
| soc-core.c | ||
| soc-dai.c | ||
| soc-dapm.c | ||
| soc-devres.c | ||
| soc-generic-dmaengine-pcm.c | ||
| soc-io.c | ||
| soc-jack.c | ||
| soc-ops.c | ||
| soc-pcm.c | ||
| soc-topology.c | ||
| soc-utils.c | ||