* [PATCH v7 18/20] firmware: qcom_scm: Use fixed width src vm bitmap
[not found] <20221121140009.2353512-1-quic_eberman@quicinc.com>
@ 2022-11-21 14:00 ` Elliot Berman
2022-11-21 15:59 ` Kalle Valo
0 siblings, 1 reply; 2+ messages in thread
From: Elliot Berman @ 2022-11-21 14:00 UTC (permalink / raw)
To: Bjorn Andersson, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Srinivas Kandagatla, Amol Maheshwari, Arnd Bergmann,
Greg Kroah-Hartman, Kalle Valo, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Mathieu Poirier
Cc: Elliot Berman, Murali Nalajala, Trilok Soni, Srivatsa Vaddagiri,
Carl van Schaik, Prakruthi Deepak Heragu, Rob Herring,
Krzysztof Kozlowski, Jonathan Corbet, Catalin Marinas,
Will Deacon, Jassi Brar, Sudeep Holla, Mark Rutland,
Lorenzo Pieralisi, linux-arm-msm, devicetree, linux-kernel,
linux-doc, linux-arm-kernel, linux-acpi, Neil Armstrong, ath10k,
linux-wireless, netdev, linux-remoteproc
The maximum VMID for assign_mem is 63. Use a u64 to represent this
bitmap instead of architecture-dependent "unsigned int" which varies in
size on 32-bit and 64-bit platforms.
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
---
Note this will have build conflicts with
https://lore.kernel.org/all/20221114-narmstrong-sm8550-upstream-mpss_dsm-v2-2-f7c65d6f0e55@linaro.org/
which would also need an "unsigned int" -> "u64" in struct qcom_mpss_dsm_mem:perms.
drivers/firmware/qcom_scm.c | 12 +++++++-----
drivers/misc/fastrpc.c | 6 ++++--
drivers/net/wireless/ath/ath10k/qmi.c | 4 ++--
drivers/remoteproc/qcom_q6v5_mss.c | 8 ++++----
drivers/soc/qcom/rmtfs_mem.c | 2 +-
include/linux/qcom_scm.h | 2 +-
6 files changed, 19 insertions(+), 15 deletions(-)
diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index cdbfe54c8146..92763dce6477 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -898,7 +898,7 @@ static int __qcom_scm_assign_mem(struct device *dev, phys_addr_t mem_region,
* Return negative errno on failure or 0 on success with @srcvm updated.
*/
int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
- unsigned int *srcvm,
+ u64 *srcvm,
const struct qcom_scm_vmperm *newvm,
unsigned int dest_cnt)
{
@@ -915,9 +915,9 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
__le32 *src;
void *ptr;
int ret, i, b;
- unsigned long srcvm_bits = *srcvm;
+ u64 srcvm_bits = *srcvm;
- src_sz = hweight_long(srcvm_bits) * sizeof(*src);
+ src_sz = hweight64(srcvm_bits) * sizeof(*src);
mem_to_map_sz = sizeof(*mem_to_map);
dest_sz = dest_cnt * sizeof(*destvm);
ptr_sz = ALIGN(src_sz, SZ_64) + ALIGN(mem_to_map_sz, SZ_64) +
@@ -930,8 +930,10 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
/* Fill source vmid detail */
src = ptr;
i = 0;
- for_each_set_bit(b, &srcvm_bits, BITS_PER_LONG)
- src[i++] = cpu_to_le32(b);
+ for (b = 0; b < BITS_PER_TYPE(u64); b++) {
+ if (srcvm_bits & BIT(b))
+ src[i++] = cpu_to_le32(b);
+ }
/* Fill details of mem buff to map */
mem_to_map = ptr + ALIGN(src_sz, SZ_64);
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 7ff0b63c25e3..2ad388f99fe1 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -299,11 +299,13 @@ static void fastrpc_free_map(struct kref *ref)
if (map->attr & FASTRPC_ATTR_SECUREMAP) {
struct qcom_scm_vmperm perm;
int err = 0;
+ u64 src;
+ src = BIT(map->fl->cctx->vmperms[0].vmid);
perm.vmid = QCOM_SCM_VMID_HLOS;
perm.perm = QCOM_SCM_PERM_RWX;
err = qcom_scm_assign_mem(map->phys, map->size,
- &(map->fl->cctx->vmperms[0].vmid), &perm, 1);
+ &src, &perm, 1);
if (err) {
dev_err(map->fl->sctx->dev, "Failed to assign memory phys 0x%llx size 0x%llx err %d",
map->phys, map->size, err);
@@ -744,7 +746,7 @@ static int fastrpc_map_create(struct fastrpc_user *fl, int fd,
* If subsystem VMIDs are defined in DTSI, then do
* hyp_assign from HLOS to those VM(s)
*/
- unsigned int perms = BIT(QCOM_SCM_VMID_HLOS);
+ u64 perms = BIT(QCOM_SCM_VMID_HLOS);
map->attr = attr;
err = qcom_scm_assign_mem(map->phys, (u64)map->size, &perms,
diff --git a/drivers/net/wireless/ath/ath10k/qmi.c b/drivers/net/wireless/ath/ath10k/qmi.c
index 66cb7a1e628a..6d1d87e1cdde 100644
--- a/drivers/net/wireless/ath/ath10k/qmi.c
+++ b/drivers/net/wireless/ath/ath10k/qmi.c
@@ -28,7 +28,7 @@ static int ath10k_qmi_map_msa_permission(struct ath10k_qmi *qmi,
{
struct qcom_scm_vmperm dst_perms[3];
struct ath10k *ar = qmi->ar;
- unsigned int src_perms;
+ u64 src_perms;
u32 perm_count;
int ret;
@@ -60,7 +60,7 @@ static int ath10k_qmi_unmap_msa_permission(struct ath10k_qmi *qmi,
{
struct qcom_scm_vmperm dst_perms;
struct ath10k *ar = qmi->ar;
- unsigned int src_perms;
+ u64 src_perms;
int ret;
src_perms = BIT(QCOM_SCM_VMID_MSS_MSA) | BIT(QCOM_SCM_VMID_WLAN);
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index fddb63cffee0..9e8bde7a7ec4 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -227,8 +227,8 @@ struct q6v5 {
bool has_qaccept_regs;
bool has_ext_cntl_regs;
bool has_vq6;
- int mpss_perm;
- int mba_perm;
+ u64 mpss_perm;
+ u64 mba_perm;
const char *hexagon_mdt_image;
int version;
};
@@ -404,7 +404,7 @@ static void q6v5_pds_disable(struct q6v5 *qproc, struct device **pds,
}
}
-static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, int *current_perm,
+static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, u64 *current_perm,
bool local, bool remote, phys_addr_t addr,
size_t size)
{
@@ -939,7 +939,7 @@ static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw,
struct page *page;
dma_addr_t phys;
void *metadata;
- int mdata_perm;
+ u64 mdata_perm;
int xferop_ret;
size_t size;
void *vaddr;
diff --git a/drivers/soc/qcom/rmtfs_mem.c b/drivers/soc/qcom/rmtfs_mem.c
index 0feaae357821..69991e47aa23 100644
--- a/drivers/soc/qcom/rmtfs_mem.c
+++ b/drivers/soc/qcom/rmtfs_mem.c
@@ -30,7 +30,7 @@ struct qcom_rmtfs_mem {
unsigned int client_id;
- unsigned int perms;
+ u64 perms;
};
static ssize_t qcom_rmtfs_mem_show(struct device *dev,
diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h
index f8335644a01a..77f7b5837216 100644
--- a/include/linux/qcom_scm.h
+++ b/include/linux/qcom_scm.h
@@ -96,7 +96,7 @@ extern int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
u32 cp_nonpixel_start,
u32 cp_nonpixel_size);
extern int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
- unsigned int *src,
+ u64 *src,
const struct qcom_scm_vmperm *newvm,
unsigned int dest_cnt);
--
2.25.1
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