linux.git/arch/mips/include/asm/netlogic, branch v4.4.300

MIPS: netlogic: xlr: Remove erroneous check in nlm_fmn_send()

2019-09-21T05:12:45+00:00

commit 02eec6c9fc0cb13169cc97a6139771768791f92b upstream.

In nlm_fmn_send() we have a loop which attempts to send a message
multiple times in order to handle the transient failure condition of a
lack of available credit. When examining the status register to detect
the failure we check for a condition that can never be true, which falls
foul of gcc 8's -Wtautological-compare:

  In file included from arch/mips/netlogic/common/irq.c:65:
  ./arch/mips/include/asm/netlogic/xlr/fmn.h: In function 'nlm_fmn_send':
  ./arch/mips/include/asm/netlogic/xlr/fmn.h:304:22: error: bitwise
    comparison always evaluates to false [-Werror=tautological-compare]
     if ((status & 0x2) == 1)
                        ^~

If the path taken if this condition were true all we do is print a
message to the kernel console. Since failures seem somewhat expected
here (making the console message questionable anyway) and the condition
has clearly never evaluated true we simply remove it, rather than
attempting to fix it to check status correctly.

Signed-off-by: Paul Burton 
Patchwork: https://patchwork.linux-mips.org/patch/20174/
Cc: Ganesan Ramalingam 
Cc: James Hogan 
Cc: Jayachandran C 
Cc: John Crispin 
Cc: Ralf Baechle 
Cc: linux-mips@linux-mips.org
Cc: Guenter Roeck 
Signed-off-by: Greg Kroah-Hartman

genirq: Remove irq argument from irq flow handlers

2015-09-16T13:47:51+00:00

Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu

MIPS: Netlogic: Add irq mapping and setup for XHCI port 3

2015-04-01T15:21:53+00:00

Add support for third XHCI port in XLPII processors.

Signed-off-by: Ganesan Ramalingam 
Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8895/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: Handle XLP hardware errata

2015-04-01T15:21:52+00:00

Core configuration register IFU_BRUB_RESERVE has to be setup to handle
a silicon errata which can result in a CPU hang.

Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8902/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: Update function to read DRAM BARs

2015-04-01T15:21:52+00:00

Change name of xlp_get_dram_map to nlm_get_dram_map to be consistent
with the rest of the functions in the file. Pass the the size of the
array 'dram_map' to the function, and ensure that it does not write
past the end of the array.

Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8892/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: nlm_core_id for xlp9xx

2015-04-01T15:21:51+00:00

XLP9XX has 5 bits that specify the core in the EBASE register. XLP5XX
case added as well for completeness.

Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8890/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: Move cores per node out of multi-node.h

2015-04-01T15:21:50+00:00

Use the current_cpu_data package field to get the node of the current CPU.

This allows us to remove xlp_cores_per_node and move nlm_threads_per_node()
and nlm_cores_per_node() to netlogic/common.h, which simplifies code.

Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8889/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: Fix frequency calculation register

2015-04-01T15:21:49+00:00

Change the PIC frequency calculation to use the register that has the
current configuration. The existing code used the register that is
written to change frequency, which can have an invalid value if the
firmware did not set it up correctly.

Signed-off-by: Ganesan Ramalingam 
Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8885/
Signed-off-by: Ralf Baechle

MIPS: Add MSI support for XLP9XX

2014-05-30T14:51:02+00:00

In XLP9XX, the interrupt routing table for MSI-X has been moved to the
PCIe controller's config space from PIC. There are also 32 MSI-X
interrupts available per link on XLP9XX.

Update XLP MSI/MSI-X code to handle this.

Signed-off-by: Ganesan Ramalingam 
Signed-off-by: Jayachandran C 
Cc: g@linux-mips.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6912/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: Add support for XLP5XX

2014-05-30T14:50:38+00:00

Add support for the XLP5XX processor which is an 8 core variant of the
XLP9XX. Add XLP5XX cases to code which earlier handled XLP9XX.

Signed-off-by: Yonghong Song 
Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6871/
Signed-off-by: Ralf Baechle