summaryrefslogtreecommitdiff
path: root/drivers/smem
AgeCommit message (Collapse)Author
2026-02-17treewide: Clean up DECLARE_GLOBAL_DATA_PTR usagePeng Fan
Remove DECLARE_GLOBAL_DATA_PTR from files where gd is not used, and drop the unnecessary inclusion of asm/global_data.h. Headers should be included directly by the files that need them, rather than indirectly via global_data.h. Reviewed-by: Patrice Chotard <[email protected]> #STMicroelectronics boards and STM32MP1 ram test driver Tested-by: Anshul Dalal <[email protected]> #TI boards Acked-by: Yao Zi <[email protected]> #TH1520 Signed-off-by: Peng Fan <[email protected]>
2026-01-14smem: msm: Fix memory-region lookup, direct <reg> mapping and update SMEM ↵Aswin Murugan
host count The SMEM driver was failing to resolve memory regions on some boards because `dev_of_offset()` + `fdtdec_lookup_phandle()` did not yield a valid DT node. Modernize the code to use driver-model/ofnode accessors and make the probe robust for both DT styles (direct `reg` vs `memory-region` phandle). - qcom_smem_map_memory(): * Drop fdtdec path; use dev_read_phandle_with_args() + ofnode_read_resource(). * Use dev_read_phandle_with_args() + fnode_read_resource(). - qcom_smem_probe(): * Try dev_read_addr_size() first (map via <reg>), else fall back to qcom_smem_map_memory() with "memory-region". * Check "qcom,rpm-msg-ram" presence to add second region. - Additionally, SMEM_HOST_COUNT is increased to support newer SMEM versions that include more remote processors. This avoids failures during processor ID checks. Signed-off-by: Aswin Murugan <[email protected]> Reviewed-by: Varadarajan Narayanan <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Casey Connolly <[email protected]>
2026-01-09dm: core: Default to using DEVRES outside of xPLTom Rini
The devm alloc functions that we have may follow the Linux kernel model where allocations are (almost always) automatically free()'d. However, quite often we don't enable, in full U-Boot, the tracking and free()'ing functionality. This in turn leads to memory leaks because the driver author expects that since the functions have the same name as in the Linux Kernel they have the same behavior. In turn we then get functionally correct commits such as commit 00e1fed93c8c ("firmware: ti_sci: Fix memory leaks in devm_ti_sci_get_of_resource") that manually add these calls. Rather than manually tracking allocations and implementing free()s, rework things so that we follow expectations by enabling the DEVRES functionality (outside of xPL phases). This turns DEVRES from a prompted symbol to a symbol that must be select'd, and we now remove our non-managed alloc/free functions from outside of xPL builds. Reviewed-by: Michael Trimarchi <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-05-07smem: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini <[email protected]>
2022-10-12smem: msm: add missing <linux/sizes.h>Robert Marko
MSM SMEM driver is currently missing <linux/sizes.h> header and throws the following compile error: drivers/smem/msm_smem.c: In function ‘qcom_smem_get_ptable’: drivers/smem/msm_smem.c:635:71: error: ‘SZ_4K’ undeclared (first use in this function) 635 | ptable = smem->regions[0].virt_base + smem->regions[0].size - SZ_4K; Signed-off-by: Robert Marko <[email protected]> Cc: [email protected]
2021-07-06dm: define LOG_CATEGORY for all uclassPatrick Delaunay
Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2021-02-15Merge branch '2021-02-02-drop-asm_global_data-when-unused'Tom Rini
- Merge the patch to take <asm/global_data.h> out of <common.h>
2021-02-03smem: Don't use -EPROBE_DEFERSimon Glass
This has no useful meaning in U-Boot. Use -ENOMEM since that appears to be what has gone wrong in this case. We want to reserve this flag for internal driver model use. Signed-off-by: Simon Glass <[email protected]>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2020-09-30soc: qualcomm: Fix not calling dev_err with a deviceSean Anderson
Remove the indirection. Signed-off-by: Sean Anderson <[email protected]> Reviewed-by: Simon Glass <[email protected]> Tested-by: Patrick Delaunay <[email protected]>
2020-09-18IPQ40xx: Add SMEM supportRobert Marko
There is already existing driver for SMEM so lets enable it for IPQ40xx as well. Signed-off-by: Robert Marko <[email protected]> Cc: Luka Perkov <[email protected]>
2020-05-18common: Drop linux/bug.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <[email protected]>
2020-02-05dm: core: Create a new header file for 'compat' featuresSimon Glass
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <[email protected]>
2020-02-05dm: core: Require users of devres to include the headerSimon Glass
At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Anatolij Gustschin <[email protected]>
2018-07-19drivers: smem: sandboxRamon Fried
Add Sandbox driver for SMEM. mostly stub operations. Signed-off-by: Ramon Fried <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2018-07-19soc: qualcomm: Add Shared Memory Manager driverRamon Fried
The Shared Memory Manager driver implements an interface for allocating and accessing items in the memory area shared among all of the processors in a Qualcomm platform. Adapted from the Linux driver (4.17) Changes from the original Linux driver: * Removed HW spinlock mechanism, which is irrelevant in U-boot particualar use case, which is just reading from the smem. * Adapted from Linux driver model to U-Boot's. Cc: Bjorn Andersson <[email protected]> Signed-off-by: Ramon Fried <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2018-07-19dm: SMEM (Shared memory) uclassRamon Fried
This is a uclass for Shared memory manager drivers. A Shared Memory Manager driver implements an interface for allocating and accessing items in the memory area shared among all of the processors. Signed-off-by: Ramon Fried <[email protected]> Reviewed-by: Simon Glass <[email protected]> Reviewed-by: Philipp Tomsich <[email protected]>