diff mbox series

[v5,6/8] hw/cxl: Fix endian issues in CXL RAS capability defaults / masks

Message ID 20230221152145.9736-7-Jonathan.Cameron@huawei.com
State Superseded
Headers show
Series hw/cxl: RAS error emulation and injection | expand

Commit Message

Jonathan Cameron Feb. 21, 2023, 3:21 p.m. UTC 
As these are about to be modified, fix the endian handle for
this set of registers rather than making it worse.

Note that CXL is currently only supported in QEMU on
x86 (arm64 patches out of tree) so we aren't going to yet hit
an problems with big endian. However it is good to avoid making
things worse for that support in the future.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
---
 hw/cxl/cxl-component-utils.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

Comments

Philippe Mathieu-Daudé Feb. 21, 2023, 10:06 p.m. UTC | #1 
On 21/2/23 16:21, Jonathan Cameron wrote:
> As these are about to be modified, fix the endian handle for
> this set of registers rather than making it worse.
> 
> Note that CXL is currently only supported in QEMU on
> x86 (arm64 patches out of tree) so we aren't going to yet hit
> an problems with big endian. However it is good to avoid making
> things worse for that support in the future.
> 
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Reviewed-by: Dave Jiang <dave.jiang@intel.com>
> ---
>   hw/cxl/cxl-component-utils.c | 18 +++++++++---------
>   1 file changed, 9 insertions(+), 9 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff mbox series

Patch

diff --git a/hw/cxl/cxl-component-utils.c b/hw/cxl/cxl-component-utils.c
index 3edd303a33..737b4764b9 100644
--- a/hw/cxl/cxl-component-utils.c
+++ b/hw/cxl/cxl-component-utils.c
@@ -141,17 +141,17 @@  static void ras_init_common(uint32_t *reg_state, uint32_t *write_msk)
      * Error status is RW1C but given bits are not yet set, it can
      * be handled as RO.
      */
-    reg_state[R_CXL_RAS_UNC_ERR_STATUS] = 0;
+    stl_le_p(reg_state + R_CXL_RAS_UNC_ERR_STATUS, 0);
     /* Bits 12-13 and 17-31 reserved in CXL 2.0 */
-    reg_state[R_CXL_RAS_UNC_ERR_MASK] = 0x1cfff;
-    write_msk[R_CXL_RAS_UNC_ERR_MASK] = 0x1cfff;
-    reg_state[R_CXL_RAS_UNC_ERR_SEVERITY] = 0x1cfff;
-    write_msk[R_CXL_RAS_UNC_ERR_SEVERITY] = 0x1cfff;
-    reg_state[R_CXL_RAS_COR_ERR_STATUS] = 0;
-    reg_state[R_CXL_RAS_COR_ERR_MASK] = 0x7f;
-    write_msk[R_CXL_RAS_COR_ERR_MASK] = 0x7f;
+    stl_le_p(reg_state + R_CXL_RAS_UNC_ERR_MASK, 0x1cfff);
+    stl_le_p(write_msk + R_CXL_RAS_UNC_ERR_MASK, 0x1cfff);
+    stl_le_p(reg_state + R_CXL_RAS_UNC_ERR_SEVERITY, 0x1cfff);
+    stl_le_p(write_msk + R_CXL_RAS_UNC_ERR_SEVERITY, 0x1cfff);
+    stl_le_p(reg_state + R_CXL_RAS_COR_ERR_STATUS, 0);
+    stl_le_p(reg_state + R_CXL_RAS_COR_ERR_MASK, 0x7f);
+    stl_le_p(write_msk + R_CXL_RAS_COR_ERR_MASK, 0x7f);
     /* CXL switches and devices must set */
-    reg_state[R_CXL_RAS_ERR_CAP_CTRL] = 0x00;
+    stl_le_p(reg_state + R_CXL_RAS_ERR_CAP_CTRL, 0x00);
 }
 
 static void hdm_init_common(uint32_t *reg_state, uint32_t *write_msk,