This is the start of the stable review cycle for the 4.19.294 release. There are 1 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Sat, 02 Sep 2023 11:08:22 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.294-rc... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y and the diffstat can be found below.
thanks,
greg k-h
------------- Pseudo-Shortlog of commits:
Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 4.19.294-rc1
Greg Kroah-Hartman gregkh@linuxfoundation.org Revert "MIPS: Alchemy: fix dbdma2"
-------------
Diffstat:
Makefile | 4 ++-- arch/mips/alchemy/common/dbdma.c | 27 ++++++++++++--------------- 2 files changed, 14 insertions(+), 17 deletions(-)
4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Greg Kroah-Hartman gregkh@linuxfoundation.org
This reverts commit a16419bae292d768546bcd6e0bfbf8a722756fee which is commit 2d645604f69f3a772d58ead702f9a8e84ab2b342 upstream.
It breaks the build, so should be dropped.
Reported-by: Guenter Roeck linux@roeck-us.net Link: https://lore.kernel.org/r/5b30ff73-46cb-1d1e-3823-f175dbfbd91b@roeck-us.net Cc: Thomas Bogendoerfer tsbogend@alpha.franken.de Cc: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/mips/alchemy/common/dbdma.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-)
--- a/arch/mips/alchemy/common/dbdma.c +++ b/arch/mips/alchemy/common/dbdma.c @@ -30,7 +30,6 @@ * */
-#include <linux/dma-map-ops.h> /* for dma_default_coherent */ #include <linux/init.h> #include <linux/kernel.h> #include <linux/slab.h> @@ -624,18 +623,17 @@ u32 au1xxx_dbdma_put_source(u32 chanid, dp->dscr_cmd0 &= ~DSCR_CMD0_IE;
/* - * There is an erratum on certain Au1200/Au1550 revisions that could - * result in "stale" data being DMA'ed. It has to do with the snoop - * logic on the cache eviction buffer. dma_default_coherent is set - * to false on these parts. + * There is an errata on the Au1200/Au1550 parts that could result + * in "stale" data being DMA'ed. It has to do with the snoop logic on + * the cache eviction buffer. DMA_NONCOHERENT is on by default for + * these parts. If it is fixed in the future, these dma_cache_inv will + * just be nothing more than empty macros. See io.h. */ - if (!dma_default_coherent) - dma_cache_wback_inv(KSEG0ADDR(buf), nbytes); + dma_cache_wback_inv((unsigned long)buf, nbytes); dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */ wmb(); /* drain writebuffer */ dma_cache_wback_inv((unsigned long)dp, sizeof(*dp)); ctp->chan_ptr->ddma_dbell = 0; - wmb(); /* force doorbell write out to dma engine */
/* Get next descriptor pointer. */ ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); @@ -687,18 +685,17 @@ u32 au1xxx_dbdma_put_dest(u32 chanid, dm dp->dscr_source1, dp->dscr_dest0, dp->dscr_dest1); #endif /* - * There is an erratum on certain Au1200/Au1550 revisions that could - * result in "stale" data being DMA'ed. It has to do with the snoop - * logic on the cache eviction buffer. dma_default_coherent is set - * to false on these parts. + * There is an errata on the Au1200/Au1550 parts that could result in + * "stale" data being DMA'ed. It has to do with the snoop logic on the + * cache eviction buffer. DMA_NONCOHERENT is on by default for these + * parts. If it is fixed in the future, these dma_cache_inv will just + * be nothing more than empty macros. See io.h. */ - if (!dma_default_coherent) - dma_cache_inv(KSEG0ADDR(buf), nbytes); + dma_cache_inv((unsigned long)buf, nbytes); dp->dscr_cmd0 |= DSCR_CMD0_V; /* Let it rip */ wmb(); /* drain writebuffer */ dma_cache_wback_inv((unsigned long)dp, sizeof(*dp)); ctp->chan_ptr->ddma_dbell = 0; - wmb(); /* force doorbell write out to dma engine */
/* Get next descriptor pointer. */ ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
On Thu, Aug 31, 2023 at 01:09:48PM +0200, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.19.294 release. There are 1 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Sat, 02 Sep 2023 11:08:22 +0000. Anything received after that time might be too late.
arch/arm/mach-ep93xx/timer-ep93xx.c:12:10: fatal error: platform.h: No such file or directory 12 | #include "platform.h"
"ARM: ep93xx: fix missing-prototype warnings" needs to be reverted in v4.19.y as well.
Thanks, Guenter
On Thu, Aug 31, 2023 at 09:10:02AM -0700, Guenter Roeck wrote:
On Thu, Aug 31, 2023 at 01:09:48PM +0200, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.19.294 release. There are 1 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Sat, 02 Sep 2023 11:08:22 +0000. Anything received after that time might be too late.
arch/arm/mach-ep93xx/timer-ep93xx.c:12:10: fatal error: platform.h: No such file or directory 12 | #include "platform.h"
"ARM: ep93xx: fix missing-prototype warnings" needs to be reverted in v4.19.y as well.
Oops, missed that, let me go add it and push out a -rc2.
thanks for the quick test.
greg k-h
On 8/31/23 05:09, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.19.294 release. There are 1 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Sat, 02 Sep 2023 11:08:22 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.294-rc... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y and the diffstat can be found below.
thanks,
greg k-h
Compiled and booted on my test system. No dmesg regressions.
Tested-by: Shuah Khan skhan@linuxfoundation.org
thanks, -- Shuah
linux-stable-mirror@lists.linaro.org