Re: [PATCH RFC 01/17] iommu: Remove struct iommu_ops *iommu from arch_setup_dma_ops()
On Fri, Nov 03, 2023 at 01:44:46PM -0300, Jason Gunthorpe wrote:
> This is not being used to pass ops, it is just a way to tell if an
> iommu driver was probed. These days this can be detected directly via
> device_iommu_mapped(). Call device_iommu_mapped() in the two places that
> need to check it and remove the iommu parameter everywhere.
>
> Signed-off-by: Jason Gunthorpe
Reviewed-by: Moritz Fischer
> ---
> arch/arc/mm/dma.c | 2 +-
> arch/arm/mm/dma-mapping-nommu.c | 2 +-
> arch/arm/mm/dma-mapping.c | 10 +-
> arch/arm64/mm/dma-mapping.c | 4 ++--
> arch/mips/mm/dma-noncoherent.c | 2 +-
> arch/riscv/mm/dma-noncoherent.c | 2 +-
> drivers/acpi/scan.c | 3 +--
> drivers/hv/hv_common.c | 2 +-
> drivers/of/device.c | 2 +-
> include/linux/dma-map-ops.h | 4 ++--
> 10 files changed, 16 insertions(+), 17 deletions(-)
>
> diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
> index 2a7fbbb83b7056..197707bc765889 100644
> --- a/arch/arc/mm/dma.c
> +++ b/arch/arc/mm/dma.c
> @@ -91,7 +91,7 @@ void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
> * Plug in direct dma map ops.
> */
> void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
> - const struct iommu_ops *iommu, bool coherent)
> + bool coherent)
> {
> /*
>* IOC hardware snoops all DMA traffic keeping the caches consistent
> diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
> index cfd9c933d2f09c..b94850b579952a 100644
> --- a/arch/arm/mm/dma-mapping-nommu.c
> +++ b/arch/arm/mm/dma-mapping-nommu.c
> @@ -34,7 +34,7 @@ void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
> }
>
> void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
> - const struct iommu_ops *iommu, bool coherent)
> + bool coherent)
> {
> if (IS_ENABLED(CONFIG_CPU_V7M)) {
> /*
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 5409225b4abc06..6c359a3af8d9c7 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -1713,7 +1713,7 @@ void arm_iommu_detach_device(struct device *dev)
> EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
>
> static void arm_setup_iommu_dma_ops(struct device *dev, u64 dma_base, u64
> size,
> - const struct iommu_ops *iommu, bool
> coherent)
> + bool coherent)
> {
> struct dma_iommu_mapping *mapping;
>
> @@ -1748,7 +1748,7 @@ static void arm_teardown_iommu_dma_ops(struct device
> *dev)
> #else
>
> static void arm_setup_iommu_dma_ops(struct device *dev, u64 dma_base, u64
> size,
> - const struct iommu_ops *iommu, bool
> coherent)
> + bool coherent)
> {
> }
>
> @@ -1757,7 +1757,7 @@ static void arm_teardown_iommu_dma_ops(struct device
> *dev) { }
> #endif /* CONFIG_ARM_DMA_USE_IOMMU */
>
> void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
> - const struct iommu_ops *iommu, bool coherent)
> + bool coherent)
> {
> /*
>* Due to legacy code that sets the ->dma_coherent flag from a bus
> @@ -1776,8 +1776,8 @@ void arch_setup_dma_ops(struct device *dev, u64
> dma_base, u64 size,
> if (dev->dma_ops)
> return;
>
> - if (iommu)
> - arm_setup_iommu_dma_ops(dev, dma_base, size, iommu, coherent);
> + if (device_iommu_mapped(dev))
> + arm_setup_iommu_dma_ops(dev, dma_base, size, coherent);
>
> xen_setup_dma_ops(dev);
> dev->archdata.dma_ops_setup = true;
> diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
> index 3cb101e8cb29ba..61886e43e3a10f 100644
> --- a/arch/arm64/mm/dma-mapping.c
> +++ b/arch/arm64/mm/dma-mapping.c
> @@ -47,7 +47,7 @@ void arch_teardown_dma_ops(struct device *dev)
> #endif
>
> void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
> - const struct iommu_ops *iommu, bool coherent)
> + bool coherent)
> {
> int cls = cache_line_size_of_cpu();
>
> @@ -58,7 +58,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base,
> u64 size,
> ARCH_DMA_MINALIGN, cls);
>
> dev->dma_coherent = coherent;
> - if (iommu)
> + if (device_iommu_mapped(dev))
> iommu_setup_dma_ops(dev, dma_base, dma_base + size - 1);
>
> xen_setup_dma_ops(dev);
> diff --git
Re: [PATCH RFC 10/17] acpi: Do not use dev->iommu within acpi_iommu_configure()
On Fri, Nov 03, 2023 at 01:44:55PM -0300, Jason Gunthorpe wrote:
> This call chain is using dev->iommu->fwspec to pass around the fwspec
> between the three parts (acpi_iommu_configure(), acpi_iommu_fwspec_init(),
> iommu_probe_device()).
>
> However there is no locking around the accesses to dev->iommu, so this is
> all racy.
>
> Allocate a clean, local, fwspec at the start of acpu_iommu_configure(),
Nit: s/acpu_iommu_configure/acpi_iommu_configure_id() ?
> pass it through all functions on the stack to fill it with data, and
> finally pass it into iommu_probe_device_fwspec() which will load it into
> dev->iommu under a lock.
>
> Signed-off-by: Jason Gunthorpe
Reviewed-by: Moritz Fischer
> ---
> drivers/acpi/arm64/iort.c | 39 -
> drivers/acpi/scan.c | 89 ++-
> drivers/acpi/viot.c | 44 ++-
> drivers/iommu/iommu.c | 5 +--
> include/acpi/acpi_bus.h | 8 ++--
> include/linux/acpi_iort.h | 3 +-
> include/linux/acpi_viot.h | 5 ++-
> include/linux/iommu.h | 2 +
> 8 files changed, 97 insertions(+), 98 deletions(-)
>
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index 6496ff5a6ba20d..accd01dcfe93f5 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -1218,10 +1218,9 @@ static bool iort_pci_rc_supports_ats(struct
> acpi_iort_node *node)
> return pci_rc->ats_attribute & ACPI_IORT_ATS_SUPPORTED;
> }
>
> -static int iort_iommu_xlate(struct device *dev, struct acpi_iort_node *node,
> - u32 streamid)
> +static int iort_iommu_xlate(struct iommu_fwspec *fwspec, struct device *dev,
> + struct acpi_iort_node *node, u32 streamid)
> {
> - const struct iommu_ops *ops;
> struct fwnode_handle *iort_fwnode;
>
> if (!node)
> @@ -1239,17 +1238,14 @@ static int iort_iommu_xlate(struct device *dev,
> struct acpi_iort_node *node,
>* in the kernel or not, defer the IOMMU configuration
>* or just abort it.
>*/
> - ops = iommu_ops_from_fwnode(iort_fwnode);
> - if (!ops)
> - return iort_iommu_driver_enabled(node->type) ?
> --EPROBE_DEFER : -ENODEV;
> -
> - return acpi_iommu_fwspec_init(dev, streamid, iort_fwnode, ops);
> + return acpi_iommu_fwspec_init(fwspec, dev, streamid, iort_fwnode,
> + iort_iommu_driver_enabled(node->type));
> }
>
> struct iort_pci_alias_info {
> struct device *dev;
> struct acpi_iort_node *node;
> + struct iommu_fwspec *fwspec;
> };
>
> static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data)
> @@ -1260,7 +1256,7 @@ static int iort_pci_iommu_init(struct pci_dev *pdev,
> u16 alias, void *data)
>
> parent = iort_node_map_id(info->node, alias, &streamid,
> IORT_IOMMU_TYPE);
> - return iort_iommu_xlate(info->dev, parent, streamid);
> + return iort_iommu_xlate(info->fwspec, info->dev, parent, streamid);
> }
>
> static void iort_named_component_init(struct device *dev,
> @@ -1280,7 +1276,8 @@ static void iort_named_component_init(struct device
> *dev,
> dev_warn(dev, "Could not add device properties\n");
> }
>
> -static int iort_nc_iommu_map(struct device *dev, struct acpi_iort_node *node)
> +static int iort_nc_iommu_map(struct iommu_fwspec *fwspec, struct device *dev,
> + struct acpi_iort_node *node)
> {
> struct acpi_iort_node *parent;
> int err = -ENODEV, i = 0;
> @@ -1293,13 +1290,13 @@ static int iort_nc_iommu_map(struct device *dev,
> struct acpi_iort_node *node)
> i++);
>
> if (parent)
> - err = iort_iommu_xlate(dev, parent, streamid);
> + err = iort_iommu_xlate(fwspec, dev, parent, streamid);
> } while (parent && !err);
>
> return err;
> }
>
> -static int iort_nc_iommu_map_id(struct device *dev,
> +static int iort_nc_iommu_map_id(struct iommu_fwspec *fwspec, struct device
> *dev,
> struct acpi_iort_node *node,
> const u32 *in_id)
> {
> @@ -1308,7 +1305,7 @@ static int iort_nc_iommu_map_id(struct device *dev,
>
> parent = iort_node_map_id(node, *in_id, &streamid, IORT_IOMMU_TYPE);
> if (parent)
> - return iort_iommu_xlate(dev, parent, streamid);
> + return iort_iommu_xlate(fwspec, dev, parent, streamid);
>
>
Re: [PATCH v2 12/17] iommu: Make iommu_ops_from_fwnode() static
On Wed, Nov 15, 2023 at 10:06:03AM -0400, Jason Gunthorpe wrote:
> There are no external callers now.
>
> Signed-off-by: Jason Gunthorpe
Reviewed-by: Moritz Fischer
> ---
> drivers/iommu/iommu.c | 3 ++-
> include/linux/iommu.h | 7 ---
> 2 files changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index 5af98cad06f9ef..ea6aede326131e 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -2928,7 +2928,8 @@ bool iommu_default_passthrough(void)
> }
> EXPORT_SYMBOL_GPL(iommu_default_passthrough);
>
> -const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
> +static const struct iommu_ops *
> +iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
> {
> const struct iommu_ops *ops = NULL;
> struct iommu_device *iommu;
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index 72ec71bd31a376..05c5ad6bad6339 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -831,7 +831,6 @@ static inline void iommu_fwspec_free(struct device *dev)
> dev->iommu->fwspec = NULL;
> }
> int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids);
> -const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode);
> int iommu_fwspec_append_ids(struct iommu_fwspec *fwspec, u32 *ids, int
> num_ids);
>
> static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev)
> @@ -1187,12 +1186,6 @@ static inline int iommu_fwspec_add_ids(struct device
> *dev, u32 *ids,
> return -ENODEV;
> }
>
> -static inline
> -const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode)
> -{
> - return NULL;
> -}
> -
> static inline int
> iommu_dev_enable_feature(struct device *dev, enum iommu_dev_features feat)
> {
> --
> 2.42.0
>
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Re: [PATCH 03/10] iommu/of: Use -ENODEV consistently in of_iommu_configure()
On Tue, Nov 28, 2023 at 08:47:59PM -0400, Jason Gunthorpe wrote:
Instead of returning 1 and trying to handle positive error codes just
stick to the convention of returning -ENODEV. Remove references to ops
from of_iommu_configure(), a NULL ops will already generate an error code.
There is no reason to check dev->bus, if err=0 at this point then the
called configure functions thought there was an iommu and we should try to
probe it. Remove it.
Reviewed-by: Jerry Snitselaar
Tested-by: Hector Martin
Signed-off-by: Jason Gunthorpe
---
drivers/iommu/of_iommu.c | 49
1 file changed, 15 insertions(+), 34 deletions(-)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index c6510d7e7b241b..164317bfb8a81f 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -17,8 +17,6 @@
#include
#include
-#define NO_IOMMU 1
-
static int of_iommu_xlate(struct device *dev,
struct of_phandle_args *iommu_spec)
{
@@ -29,7 +27,7 @@ static int of_iommu_xlate(struct device *dev,
ops = iommu_ops_from_fwnode(fwnode);
if ((ops && !ops->of_xlate) ||
!of_device_is_available(iommu_spec->np))
- return NO_IOMMU;
+ return -ENODEV;
ret = iommu_fwspec_init(dev, &iommu_spec->np->fwnode, ops);
if (ret)
@@ -61,7 +59,7 @@ static int of_iommu_configure_dev_id(struct device_node
*master_np,
"iommu-map-mask", &iommu_spec.np,
iommu_spec.args);
if (err)
- return err == -ENODEV ? NO_IOMMU : err;
+ return err;
err = of_iommu_xlate(dev, &iommu_spec);
of_node_put(iommu_spec.np);
@@ -72,7 +70,7 @@ static int of_iommu_configure_dev(struct device_node
*master_np,
struct device *dev)
{
struct of_phandle_args iommu_spec;
- int err = NO_IOMMU, idx = 0;
+ int err = -ENODEV, idx = 0;
while (!of_parse_phandle_with_args(master_np, "iommus",
"#iommu-cells",
@@ -117,9 +115,8 @@ static int of_iommu_configure_device(struct
device_node *master_np,
int of_iommu_configure(struct device *dev, struct device_node *master_np,
const u32 *id)
{
- const struct iommu_ops *ops = NULL;
struct iommu_fwspec *fwspec;
- int err = NO_IOMMU;
+ int err;
if (!master_np)
return -ENODEV;
@@ -153,37 +150,21 @@ int of_iommu_configure(struct device *dev, struct
device_node *master_np,
} else {
err = of_iommu_configure_device(master_np, dev, id);
}
-
- /*
-* Two success conditions can be represented by non-negative err here:
-* >0 : there is no IOMMU, or one was unavailable for non-fatal reasons
-* 0 : we found an IOMMU, and dev->fwspec is initialised appropriately
-* <0 : any actual error
-*/
- if (!err) {
- /* The fwspec pointer changed, read it again */
- fwspec = dev_iommu_fwspec_get(dev);
- ops= fwspec->ops;
- }
mutex_unlock(&iommu_probe_device_lock);
- /*
-* If we have reason to believe the IOMMU driver missed the initial
-* probe for dev, replay it to get things in order.
-*/
- if (!err && dev->bus)
- err = iommu_probe_device(dev);
-
- /* Ignore all other errors apart from EPROBE_DEFER */
- if (err < 0) {
- if (err == -EPROBE_DEFER)
- return err;
- dev_dbg(dev, "Adding to IOMMU failed: %pe\n", ERR_PTR(err));
+ if (err == -ENODEV || err == -EPROBE_DEFER)
return err;
- }
- if (!ops)
- return -ENODEV;
+ if (err)
+ goto err_log;
+
+ err = iommu_probe_device(dev);
+ if (err)
+ goto err_log;
return 0;
+
+err_log:
+ dev_dbg(dev, "Adding to IOMMU failed: %pe\n", ERR_PTR(err));
+ return err;
}
static enum iommu_resv_type __maybe_unused
--
2.42.0
Reviewed-by: Moritz Fischer
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Re: [PATCH 04/10] iommu: Mark dev_iommu_get() with lockdep
On Tue, Nov 28, 2023 at 08:48:00PM -0400, Jason Gunthorpe wrote:
Allocation of dev->iommu must be done under the
iommu_probe_device_lock. Mark this with lockdep to discourage future
mistakes.
Reviewed-by: Jerry Snitselaar
Tested-by: Hector Martin
Signed-off-by: Jason Gunthorpe
---
drivers/iommu/iommu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 0d25468d53a68a..4323b6276e977f 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -334,6 +334,8 @@ static struct dev_iommu *dev_iommu_get(struct device
*dev)
{
struct dev_iommu *param = dev->iommu;
+ lockdep_assert_held(&iommu_probe_device_lock);
+
if (param)
return param;
--
2.42.0
Reviewed-by: Moritz Fischer
Cheers,
Moritz
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Re: [PATCH 07/10] acpi: Do not return struct iommu_ops from acpi_iommu_configure_id()
On Tue, Nov 28, 2023 at 08:48:03PM -0400, Jason Gunthorpe wrote:
Nothing needs this pointer. Return a normal error code with the usual
IOMMU semantic that ENODEV means 'there is no IOMMU driver'.
Acked-by: Rafael J. Wysocki
Reviewed-by: Jerry Snitselaar
Tested-by: Hector Martin
Signed-off-by: Jason Gunthorpe
---
drivers/acpi/scan.c | 29 +
1 file changed, 17 insertions(+), 12 deletions(-)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 444a0b3c72f2d8..340ba720c72129 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1562,8 +1562,7 @@ static inline const struct iommu_ops
*acpi_iommu_fwspec_ops(struct device *dev)
return fwspec ? fwspec->ops : NULL;
}
-static const struct iommu_ops *acpi_iommu_configure_id(struct device
*dev,
- const u32 *id_in)
+static int acpi_iommu_configure_id(struct device *dev, const u32 *id_in)
{
int err;
const struct iommu_ops *ops;
@@ -1577,7 +1576,7 @@ static const struct iommu_ops
*acpi_iommu_configure_id(struct device *dev,
ops = acpi_iommu_fwspec_ops(dev);
if (ops) {
mutex_unlock(&iommu_probe_device_lock);
- return ops;
+ return 0;
}
err = iort_iommu_configure_id(dev, id_in);
@@ -1594,12 +1593,14 @@ static const struct iommu_ops
*acpi_iommu_configure_id(struct device *dev,
/* Ignore all other errors apart from EPROBE_DEFER */
if (err == -EPROBE_DEFER) {
- return ERR_PTR(err);
+ return err;
} else if (err) {
dev_dbg(dev, "Adding to IOMMU failed: %d\n", err);
- return NULL;
+ return -ENODEV;
}
- return acpi_iommu_fwspec_ops(dev);
+ if (!acpi_iommu_fwspec_ops(dev))
+ return -ENODEV;
+ return 0;
}
#else /* !CONFIG_IOMMU_API */
@@ -1611,10 +1612,9 @@ int acpi_iommu_fwspec_init(struct device *dev, u32
id,
return -ENODEV;
}
-static const struct iommu_ops *acpi_iommu_configure_id(struct device
*dev,
- const u32 *id_in)
+static int acpi_iommu_configure_id(struct device *dev, const u32 *id_in)
{
- return NULL;
+ return -ENODEV;
}
#endif /* !CONFIG_IOMMU_API */
@@ -1628,7 +1628,7 @@ static const struct iommu_ops
*acpi_iommu_configure_id(struct device *dev,
int acpi_dma_configure_id(struct device *dev, enum dev_dma_attr attr,
const u32 *input_id)
{
- const struct iommu_ops *iommu;
+ int ret;
if (attr == DEV_DMA_NOT_SUPPORTED) {
set_dma_ops(dev, &dma_dummy_ops);
@@ -1637,10 +1637,15 @@ int acpi_dma_configure_id(struct device *dev,
enum dev_dma_attr attr,
acpi_arch_dma_setup(dev);
- iommu = acpi_iommu_configure_id(dev, input_id);
- if (PTR_ERR(iommu) == -EPROBE_DEFER)
+ ret = acpi_iommu_configure_id(dev, input_id);
+ if (ret == -EPROBE_DEFER)
return -EPROBE_DEFER;
+ /*
+* Historically this routine doesn't fail driver probing due to errors
+* in acpi_iommu_configure_id()
+*/
+
arch_setup_dma_ops(dev, 0, U64_MAX, attr == DEV_DMA_COHERENT);
return 0;
--
2.42.0
Reviewed-by: Moritz Fischer
Cheers,
Moritz
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Re: [PATCH 09/10] ACPI: IORT: Cast from ULL to phys_addr_t
On Tue, Nov 28, 2023 at 08:48:05PM -0400, Jason Gunthorpe wrote: gcc on i386 (when compile testing) warns: This is a weird test. The Makefile for drivers/acpi/arm64 is conditional on CONFIG_ARM64. How does this happen? 8->8 obj-$(CONFIG_ARM64) += arm64/ 8->8 drivers/acpi/arm64/iort.c:2014:18: warning: implicit conversion from 'unsigned long long' to 'phys_addr_t' (aka 'unsigned int') changes value from 18446744073709551615 to 4294967295 [-Wconstant-conversion] local_limit = DMA_BIT_MASK(ncomp->memory_address_limit); Because DMA_BIT_MASK returns a large ULL constant. Explicitly truncate it to phys_addr_t. Signed-off-by: Jason Gunthorpe --- drivers/acpi/arm64/iort.c | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 6496ff5a6ba20d..bdaf9256870d92 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -2011,7 +2011,8 @@ phys_addr_t __init acpi_iort_dma_get_max_cpu_address(void) case ACPI_IORT_NODE_NAMED_COMPONENT: ncomp = (struct acpi_iort_named_component *)node->node_data; - local_limit = DMA_BIT_MASK(ncomp->memory_address_limit); + local_limit = (phys_addr_t)DMA_BIT_MASK( + ncomp->memory_address_limit); limit = min_not_zero(limit, local_limit); break; @@ -2020,7 +2021,8 @@ phys_addr_t __init acpi_iort_dma_get_max_cpu_address(void) break; rc = (struct acpi_iort_root_complex *)node->node_data; - local_limit = DMA_BIT_MASK(rc->memory_address_limit); + local_limit = (phys_addr_t)DMA_BIT_MASK( + rc->memory_address_limit); limit = min_not_zero(limit, local_limit); break; } -- 2.42.0 Cheers, Moritz ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
Re: [PATCH 10/10] ACPI: IORT: Allow COMPILE_TEST of IORT
On Tue, Nov 28, 2023 at 08:48:06PM -0400, Jason Gunthorpe wrote: The arm-smmu driver can COMPILE_TEST on x86, so expand this to also enable the IORT code so it can be COMPILE_TEST'd too. Signed-off-by: Jason Gunthorpe --- drivers/acpi/Kconfig| 2 -- drivers/acpi/Makefile | 2 +- drivers/acpi/arm64/Kconfig | 1 + drivers/acpi/arm64/Makefile | 2 +- drivers/iommu/Kconfig | 1 + 5 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index f819e760ff195a..3b7f77b227d13a 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -541,9 +541,7 @@ config ACPI_PFRUT To compile the drivers as modules, choose M here: the modules will be called pfr_update and pfr_telemetry. -if ARM64 source "drivers/acpi/arm64/Kconfig" -endif config ACPI_PPTT bool diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index eaa09bf52f1760..4e77ae37b80726 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -127,7 +127,7 @@ obj-y += pmic/ video-objs+= acpi_video.o video_detect.o obj-y += dptf/ -obj-$(CONFIG_ARM64)+= arm64/ +obj-y += arm64/ obj-$(CONFIG_ACPI_VIOT) += viot.o diff --git a/drivers/acpi/arm64/Kconfig b/drivers/acpi/arm64/Kconfig index b3ed6212244c1e..537d49d8ace69e 100644 --- a/drivers/acpi/arm64/Kconfig +++ b/drivers/acpi/arm64/Kconfig @@ -11,6 +11,7 @@ config ACPI_GTDT config ACPI_AGDI bool "Arm Generic Diagnostic Dump and Reset Device Interface" + depends on ARM64 depends on ARM_SDE_INTERFACE help Arm Generic Diagnostic Dump and Reset Device Interface (AGDI) is diff --git a/drivers/acpi/arm64/Makefile b/drivers/acpi/arm64/Makefile index 143debc1ba4a9d..71d0e635599390 100644 --- a/drivers/acpi/arm64/Makefile +++ b/drivers/acpi/arm64/Makefile @@ -4,4 +4,4 @@ obj-$(CONFIG_ACPI_IORT) += iort.o obj-$(CONFIG_ACPI_GTDT) += gtdt.o obj-$(CONFIG_ACPI_APMT) += apmt.o obj-$(CONFIG_ARM_AMBA)+= amba.o -obj-y += dma.o init.o +obj-$(CONFIG_ARM64)+= dma.o init.o diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 7673bb82945b6c..309378e76a9bc9 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -318,6 +318,7 @@ config ARM_SMMU select IOMMU_API select IOMMU_IO_PGTABLE_LPAE select ARM_DMA_USE_IOMMU if ARM + select ACPI_IORT if ACPI help Support for implementations of the ARM System MMU architecture versions 1 and 2. -- 2.42.0 Reviewed-by: Moritz Fischer Ok, now the previous patch makes sense :) Cheers, Moritz ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
