Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v5.13.1 2020-11-19T12:47:23+00:00 2020-11-19T12:47:23+00:00 Daniel Axtens dja@axtens.net 2020-11-17T05:59:15+00:00 urn:sha1:0d239f3b03efc78fb5b290aff6c747fecd3b98cb For simplicity in backporting, the original entry_flush test contained a lot of duplicated code from the rfi_flush test. De-duplicate that code. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2020-09-08T12:23:59+00:00 Michael Ellerman mpe@ellerman.id.au 2020-08-19T01:57:22+00:00 urn:sha1:178282a054dced1a08a9683d41ac08cbace2b2fe utils.h provides have_hwcap() and have_hwcap2() which check for a feature bit. Those bits are defined in asm/cputable.h, so include it in utils.h so users of utils.h don't have to do it manually. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200819015727.1977134-4-mpe@ellerman.id.au 2020-09-08T12:23:57+00:00 Michael Ellerman mpe@ellerman.id.au 2020-08-19T01:57:21+00:00 urn:sha1:d89002397cfb2b65267d6688fe671ee1cf7c5f0d This version of set_dscr() was added for the RFI flush test, and is fairly specific to it. It also clashes with the version of set_dscr() in dscr/dscr.h. So move it into the RFI flush test where it's used. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200819015727.1977134-3-mpe@ellerman.id.au 2020-08-05T00:14:03+00:00 Sandipan Das sandipan@linux.ibm.com 2020-08-04T17:31:37+00:00 urn:sha1:a7aaa2f26bfd932a654706b19859e7adf802bee2 On distros using older glibc versions, the pkey tests encounter build failures due to redefinition of the pkey syscall numbers. For compatibility, commit 743f3544fffb added a wrapper for the gettid() syscall and included syscall.h if the version of glibc used is older than 2.30. This leads to different definitions of SYS_pkey_* as the ones in the pkey test header set numeric constants where as the ones from syscall.h reuse __NR_pkey_*. The compiler complains about redefinitions since they are different. This replaces SYS_pkey_* definitions with __NR_pkey_* such that the definitions in both syscall.h and pkeys.h are alike. This way, if syscall.h has to be included for compatibility reasons, builds will still succeed. Fixes: 743f3544fffb ("selftests/powerpc: Add wrapper for gettid") Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com> Suggested-by: David Laight <david.laight@aculab.com> Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/a4956d838bf59b0a71a2553c5ca81131ea8b49b9.1596561758.git.sandipan@linux.ibm.com 2020-07-29T11:02:10+00:00 Sandipan Das sandipan@linux.ibm.com 2020-07-27T04:00:39+00:00 urn:sha1:743f3544fffb9662aaf550c8358a8c1b6fcae707 The gettid() syscall wrapper was first introduced in glibc 2.30. This adds a wrapper for use in distros running older versions. Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/8ca3b0eeda989707815d1cf337cc33f090408965.1595821792.git.sandipan@linux.ibm.com 2020-07-29T11:02:10+00:00 Sandipan Das sandipan@linux.ibm.com 2020-07-27T04:00:38+00:00 urn:sha1:e3333c599482245d08002725cc1b353e4963fa26 This adds a helper similar to FAIL_IF() which lets a program exit with code 1 (to indicate failure) when the given condition is true. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/dac282d5c2e96e7816dc522e4e20d56d7c79c898.1595821792.git.sandipan@linux.ibm.com 2020-07-29T11:02:10+00:00 Sandipan Das sandipan@linux.ibm.com 2020-07-27T04:00:36+00:00 urn:sha1:264d7fccc4711328a19f07e6bd57aee4c68803aa This adds some new pkey-related helper to print access rights of a pkey in the "rwx" format and to generate different valid combinations of pkey rights starting from a given combination. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/6cc1c7d1f686618668a3e090f1d0c2a4cd9dea3f.1595821792.git.sandipan@linux.ibm.com 2020-07-29T11:02:10+00:00 Sandipan Das sandipan@linux.ibm.com 2020-07-27T04:00:35+00:00 urn:sha1:128d3d0210076232b7d54c361082c8ee17e4b669 This moves all the pkey-related helpers to a new header file and also a helper to print error messages in signal handlers to the existing utils header file. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/28e633fa9ec1a6500c12188e09ea1887b10a10c1.1595821792.git.sandipan@linux.ibm.com 2020-06-30T04:37:51+00:00 Sandipan Das sandipan@linux.ibm.com 2020-06-04T12:56:09+00:00 urn:sha1:c405b738daf9d8e8a5aedfeb6be851681e65e54b This moves a function to test if the MMU is in Hash mode under the generic test utilities. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200604125610.649668-3-sandipan@linux.ibm.com 2020-06-30T04:37:47+00:00 Sandipan Das sandipan@linux.ibm.com 2020-06-04T12:56:08+00:00 urn:sha1:828ca4320d130bbe1d12866152600c49ff6a9f79 The Power ISA mandates that all writes to the Authority Mask Register (AMR) must always be preceded as well as succeeded by a context synchronizing instruction. This makes sure that the tests follow this requirement when attempting to update a pkey's access rights. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200604125610.649668-2-sandipan@linux.ibm.com