kernel/linux.git/drivers/soc/qcom/smem.c, branch linux-4.16.y

soc: qcom: smem: Increase the number of hosts

2017-10-12T04:48:27+00:00

Increase the maximum number of hosts in a system to 10. Signed-off-by: Chris Lew Acked-by: Bjorn Andersson Signed-off-by: Andy Gross

soc: qcom: smem: Support dynamic item limit

2017-10-12T04:48:27+00:00

In V12 SMEM, SBL writes SMEM parameter information after the TOC. Use the SBL provided item count as the max item number. Signed-off-by: Chris Lew Acked-by: Bjorn Andersson Signed-off-by: Andy Gross

soc: qcom: smem: Support global partition

2017-10-12T04:48:27+00:00

SMEM V12 creates a global partition to allocate global smem items from instead of a global heap. The global partition has the same structure as a private partition. Signed-off-by: Chris Lew Acked-by: Bjorn Andersson Signed-off-by: Andy Gross

soc: qcom: smem: Read version from the smem header

2017-10-12T04:48:27+00:00

The SMEM header structure includes the version information. Read the version directly from the header instead of getting an item from the global heap. Signed-off-by: Chris Lew Acked-by: Bjorn Andersson Signed-off-by: Andy Gross

soc: qcom: smem: Use le32_to_cpu for comparison

2017-10-12T04:48:27+00:00

Endianness can vary in the system, add le32_to_cpu when comparing partition sizes from smem. Signed-off-by: Chris Lew Acked-by: Bjorn Andersson Signed-off-by: Andy Gross

soc: qcom: smem: Support getting cached entries

2017-10-11T21:58:11+00:00

On msm8996 cached SMEM items are used for storing the GLINK FIFOs, so for items not found in the uncached list we need to also search the cased list for these items. Signed-off-by: Bjorn Andersson Reviewed-by: Stephen Boyd Signed-off-by: Andy Gross

soc: qcom: smem: Rename "uncached" accessors

2017-10-11T21:58:11+00:00

In preparation for adding accessors for "cached" entries rename the "uncached" accessors. Also rename "first" cached entry to "last", as the cached list grows backwards. Signed-off-by: Bjorn Andersson Reviewed-by: Stephen Boyd Signed-off-by: Andy Gross

soc: qcom: smem: Silence probe defer error

2016-08-23T20:46:32+00:00

If we fail to get the hwspinlock due to probe defer, we shouldn't print an error message. Just be silent in this case. Cc: Bjorn Andersson Signed-off-by: Stephen Boyd Reviewed-by: Bjorn Andersson Signed-off-by: Andy Gross

soc: qcom: smem: Use write-combine remap for SMEM

2016-04-20T02:55:06+00:00

Mapping the SMEM region as write combine makes the contiguous writes in SMD perform better and also allows us to do unaligned read and writes on ARM64. Signed-off-by: Bjorn Andersson Reviewed-by: Andy Gross Signed-off-by: Andy Gross

soc: qcom: smem: Move RPM message ram out of smem DT node

2015-10-14T19:51:40+00:00

SMEM is a software construct built on top of a DDR reserved region and sometimes a device memory region called RPM message ram. Having the RPM message ram in the smem DT node's reg property leads to the smem node being located in different places depending on if the message ram is being used or not. Let's add a qcom specific property, qcom,rpm-msg-ram, and point to the device memory from the SMEM node via a phandle. As SMEM is a software construct, it really needs to reside at the root of the DT regardless of whether it's using the message ram or not. Cc: Bjorn Andersson Signed-off-by: Stephen Boyd Signed-off-by: Andy Gross