From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
Michael Ellerman <mpe@ellerman.id.au>,
Sasha Levin <sashal@kernel.org>,
leobras.c@gmail.com, fbarrat@linux.ibm.com,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH AUTOSEL 5.15 03/39] powerpc/pseries/ddw: Revert "Extend upper limit for huge DMA window for persistent memory"
Date: Thu, 25 Nov 2021 21:31:20 -0500 [thread overview]
Message-ID: <20211126023156.441292-3-sashal@kernel.org> (raw)
In-Reply-To: <20211126023156.441292-1-sashal@kernel.org>
From: Alexey Kardashevskiy <aik@ozlabs.ru>
[ Upstream commit 2d33f5504490a9d90924476dbccd4a5349ee1ad0 ]
This reverts commit 54fc3c681ded9437e4548e2501dc1136b23cfa9a
which does not allow 1:1 mapping even for the system RAM which
is usually possible.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211108040320.3857636-2-aik@ozlabs.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/pseries/iommu.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index a52af8fbf5711..ad96d6e13d1f6 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1092,15 +1092,6 @@ static phys_addr_t ddw_memory_hotplug_max(void)
phys_addr_t max_addr = memory_hotplug_max();
struct device_node *memory;
- /*
- * The "ibm,pmemory" can appear anywhere in the address space.
- * Assuming it is still backed by page structs, set the upper limit
- * for the huge DMA window as MAX_PHYSMEM_BITS.
- */
- if (of_find_node_by_type(NULL, "ibm,pmemory"))
- return (sizeof(phys_addr_t) * 8 <= MAX_PHYSMEM_BITS) ?
- (phys_addr_t) -1 : (1ULL << MAX_PHYSMEM_BITS);
-
for_each_node_by_type(memory, "memory") {
unsigned long start, size;
int n_mem_addr_cells, n_mem_size_cells, len;
--
2.33.0
next prev parent reply other threads:[~2021-11-26 2:34 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-26 2:31 [PATCH AUTOSEL 5.15 01/39] gfs2: release iopen glock early in evict Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 02/39] gfs2: Fix length of holes reported at end-of-file Sasha Levin
2021-11-26 2:31 ` Sasha Levin [this message]
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 04/39] powerpc/pseries/ddw: Do not try direct mapping with persistent memory and one window Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 05/39] drm/sun4i: fix unmet dependency on RESET_CONTROLLER for PHY_SUN6I_MIPI_DPHY Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 06/39] mac80211: do not access the IV when it was stripped Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 07/39] mac80211: fix throughput LED trigger Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 08/39] x86/hyperv: Move required MSRs check to initial platform probing Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 09/39] tun: fix bonding active backup with arp monitoring Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 10/39] net/smc: Transfer remaining wait queue entries during fallback Sasha Levin
2021-11-26 2:51 ` Jakub Kicinski
2021-12-03 18:20 ` Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 11/39] atlantic: Fix OOB read and write in hw_atl_utils_fw_rpc_wait Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 12/39] net: return correct error code Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 13/39] pinctrl: qcom: fix unmet dependencies on GPIOLIB for GPIOLIB_IRQCHIP Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 14/39] blk-mq: cancel blk-mq dispatch work in both blk_cleanup_queue and disk_release() Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 15/39] platform/x86: dell-wmi-descriptor: disable by default Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 16/39] platform/x86: thinkpad_acpi: Add support for dual fan control Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 17/39] platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 18/39] s390/setup: avoid using memblock_enforce_memory_limit Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 19/39] btrfs: silence lockdep when reading chunk tree during mount Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 20/39] btrfs: check-integrity: fix a warning on write caching disabled disk Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 21/39] thermal: core: Reset previous low and high trip during thermal zone init Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 22/39] scsi: iscsi: Unblock session then wake up error handler Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 23/39] net: usb: r8152: Add MAC passthrough support for more Lenovo Docks Sasha Levin
2021-11-28 9:49 ` Sergey Shtylyov
2021-11-28 9:50 ` Sergey Shtylyov
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 24/39] drm/amd/pm: Remove artificial freq level on Navi1x Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 25/39] drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 26/39] drm/amd/amdgpu: fix potential memleak Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 27/39] ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile Sasha Levin
2021-11-29 14:46 ` Limonciello, Mario
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 28/39] ata: libahci: Adjust behavior when StorageD3Enable _DSD is set Sasha Levin
2021-11-29 14:46 ` Limonciello, Mario
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 29/39] ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 30/39] ipv6: check return value of ipv6_skip_exthdr Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 31/39] net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 32/39] net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock() Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 33/39] perf sort: Fix the 'weight' sort key behavior Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 34/39] perf sort: Fix the 'ins_lat' " Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 35/39] perf sort: Fix the 'p_stage_cyc' " Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 36/39] perf inject: Fix ARM SPE handling Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 37/39] perf hist: Fix memory leak of a perf_hpp_fmt Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 38/39] perf report: Fix memory leaks around perf_tip() Sasha Levin
2021-11-26 2:31 ` [PATCH AUTOSEL 5.15 39/39] tracing: Don't use out-of-sync va_list in event printing Sasha Levin
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