From: Loic Pallardy <loic.pallardy@st.com>
To: <bjorn.andersson@linaro.org>, <ohad@wizery.com>
Cc: <linux-remoteproc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <arnaud.pouliquen@st.com>,
<benjamin.gaignard@linaro.org>,
Loic Pallardy <loic.pallardy@st.com>
Subject: [PATCH v2 01/16] remoteproc: add rproc_va_to_pa function
Date: Thu, 30 Nov 2017 17:46:36 +0100 [thread overview]
Message-ID: <1512060411-729-2-git-send-email-loic.pallardy@st.com> (raw)
In-Reply-To: <1512060411-729-1-git-send-email-loic.pallardy@st.com>
This new function translates CPU virtual address in
CPU physical one according to virtual address location.
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
---
drivers/remoteproc/remoteproc_core.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index eab14b4..faa18a7 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -139,6 +139,17 @@ static void rproc_disable_iommu(struct rproc *rproc)
iommu_domain_free(domain);
}
+static phys_addr_t rproc_va_to_pa(void *cpu_addr)
+{
+ if (is_vmalloc_addr(cpu_addr)) {
+ return page_to_phys(vmalloc_to_page(cpu_addr)) +
+ offset_in_page(cpu_addr);
+ }
+
+ WARN_ON(!virt_addr_valid(cpu_addr));
+ return virt_to_phys(cpu_addr);
+}
+
/**
* rproc_da_to_va() - lookup the kernel virtual address for a remoteproc address
* @rproc: handle of a remote processor
@@ -700,7 +711,7 @@ static int rproc_handle_carveout(struct rproc *rproc,
* In this case, the device address and the physical address
* are the same.
*/
- rsc->pa = dma;
+ rsc->pa = (u32)rproc_va_to_pa(va);
carveout->va = va;
carveout->len = rsc->len;
--
1.9.1
next prev parent reply other threads:[~2017-11-30 16:47 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-30 16:46 [PATCH v2 00/16] remoteproc: add fixed memory region support Loic Pallardy
2017-11-30 16:46 ` Loic Pallardy [this message]
2017-12-14 0:30 ` [PATCH v2 01/16] remoteproc: add rproc_va_to_pa function Bjorn Andersson
2018-01-12 7:43 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 02/16] remoteproc: add release ops in rproc_mem_entry struct Loic Pallardy
2017-12-14 0:34 ` Bjorn Andersson
2018-01-12 7:43 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 03/16] remoteproc: introduce rproc_add_carveout function Loic Pallardy
2017-12-14 0:36 ` Bjorn Andersson
2018-01-12 7:45 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 04/16] remoteproc: introduce rproc_find_carveout_by_da Loic Pallardy
2017-12-14 0:45 ` Bjorn Andersson
2018-01-12 7:48 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 05/16] remoteproc: modify rproc_handle_carveout to support preallocated region Loic Pallardy
2017-12-14 0:59 ` Bjorn Andersson
2018-01-12 7:56 ` Loic PALLARDY
2018-10-23 17:40 ` Suman Anna
2018-10-23 19:09 ` Loic PALLARDY
2018-10-23 19:12 ` Suman Anna
2017-11-30 16:46 ` [PATCH v2 06/16] remoteproc: modify vring allocation " Loic Pallardy
2017-12-14 1:09 ` Bjorn Andersson
2018-01-12 8:13 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 07/16] remoteproc: st: add reserved memory support Loic Pallardy
2017-12-14 1:15 ` Bjorn Andersson
2018-01-12 8:19 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 08/16] remoteproc: add name in rproc_mem_entry struct Loic Pallardy
2017-12-14 1:21 ` Bjorn Andersson
2018-01-12 8:19 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 09/16] remoteproc: add memory device management support Loic Pallardy
2017-11-30 16:46 ` [PATCH v2 10/16] remoteproc: add memory device registering in rproc_add_carveout Loic Pallardy
2017-12-14 1:29 ` Bjorn Andersson
2018-01-15 9:09 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 11/16] remoteproc: introduce rproc_find_carveout_by_name function Loic Pallardy
2017-12-14 1:32 ` Bjorn Andersson
2018-01-15 9:10 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 12/16] remoteproc: look-up memory-device for vring allocation Loic Pallardy
2017-12-14 1:44 ` Bjorn Andersson
2018-01-15 20:44 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 13/16] remoteproc: look-up memory-device for virtio device allocation Loic Pallardy
2017-12-14 5:32 ` Bjorn Andersson
2018-01-15 20:57 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 14/16] remoteproc: look-up pre-registered carveout by name for carveout allocation Loic Pallardy
2017-12-14 5:34 ` Bjorn Andersson
2018-01-15 20:59 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 15/16] remoteproc: st: associate memory device to memory regions Loic Pallardy
2017-12-14 5:37 ` Bjorn Andersson
2018-01-15 21:04 ` Loic PALLARDY
2017-11-30 16:46 ` [PATCH v2 16/16] rpmsg: virtio: allocate buffer from parent Loic Pallardy
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