From: "J. German Rivera" <German.Rivera@xxxxxxxxxxxxx> The DPRC built-in portal's mc_io is used to send commands to the MC to program MSIs for MC objects. This is done by the fsl_mc_msi_write_msg() callback, which is invoked by the generic MSI layer with interrupts disabled. As a result, the mc_io used in fsl_mc_msi_write_msg needs to be an atomic mc_io. Signed-off-by: J. German Rivera <German.Rivera@xxxxxxxxxxxxx> --- CHANGE HISTORY Changes in v4: none Changes in v3: none Changes in v2: none drivers/staging/fsl-mc/bus/dprc-driver.c | 4 +++- drivers/staging/fsl-mc/bus/mc-bus.c | 3 ++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c index 2c4cd70..767d437 100644 --- a/drivers/staging/fsl-mc/bus/dprc-driver.c +++ b/drivers/staging/fsl-mc/bus/dprc-driver.c @@ -396,7 +396,9 @@ static int dprc_probe(struct fsl_mc_device *mc_dev) error = fsl_create_mc_io(&mc_dev->dev, mc_dev->regions[0].start, region_size, - NULL, 0, &mc_dev->mc_io); + NULL, + FSL_MC_IO_ATOMIC_CONTEXT_PORTAL, + &mc_dev->mc_io); if (error < 0) return error; } diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c index 84db55b..d34f1af 100644 --- a/drivers/staging/fsl-mc/bus/mc-bus.c +++ b/drivers/staging/fsl-mc/bus/mc-bus.c @@ -702,7 +702,8 @@ static int fsl_mc_bus_probe(struct platform_device *pdev) mc_portal_phys_addr = res.start; mc_portal_size = resource_size(&res); error = fsl_create_mc_io(&pdev->dev, mc_portal_phys_addr, - mc_portal_size, NULL, 0, &mc_io); + mc_portal_size, NULL, + FSL_MC_IO_ATOMIC_CONTEXT_PORTAL, &mc_io); if (error < 0) return error; -- 2.3.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
