4 Commits

Author	SHA1	Message	Date
Sven Schnelle	7e923369b1	parisc: add spinlock to patch function ... If multiple CPUs are patching code we need the spinlock to protect against parallel fixmap maps/unmap calls. Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de>	2019-06-08 12:56:26 +02:00
Sven Schnelle	4e87ace902	parisc: add support for patching multiple words ... add patch_text_multiple() which allows to patch multiple text words in memory. This can be used to copy functions. Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de>	2019-06-08 12:56:25 +02:00
Sven Schnelle	ea5a8c620f	parisc: remove unused flags parameter in __patch_text() ... It's not used by patch_map()/patch_unmap(), so lets remove it. Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de>	2019-05-03 23:47:39 +02:00
Sven Schnelle	620a53d522	parisc: add parisc code patching ... Instead of re-mapping the whole kernel text with RWX rights add a patch_text() which can be used to replace instructions in the kernel .text section. Based on the ARM implementation. Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de>	2019-05-03 23:47:38 +02:00