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* hw/registerfields: Add shared fields macrosJoe Komlodi2022-06-221-0/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | Occasionally a peripheral will have different operating modes, where the MMIO layout changes, but some of the register fields have the same offsets and behaviors. To help support this, we add SHARED_FIELD_XX macros that create SHIFT, LENGTH, and MASK macros for the fields that are shared across registers, and accessors for these fields. An example use may look as follows: There is a peripheral with registers REG_MODE1 and REG_MODE2 at different addreses, and both have a field FIELD1 initialized by SHARED_FIELD(). Depending on what mode the peripheral is operating in, the user could extract FIELD1 via SHARED_ARRAY_FIELD_EX32(s->regs, R_REG_MODE1, FIELD1) or SHARED_ARRAY_FIELD_EX32(s->regs, R_REG_MODE2, FIELD1) Signed-off-by: Joe Komlodi <komlodi@google.com> Change-Id: Id3dc53e7d2f8741c95697cbae69a81bb699fa3cb Message-Id: <20220331043248.2237838-2-komlodi@google.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
* hw/registerfields: Add FIELD_SEX<N> and FIELD_SDP<N>Richard Henderson2022-03-021-1/+47
| | | | | | | | | | | Add new macros to manipulate signed fields within the register. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220301215958.157011-2-richard.henderson@linaro.org Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/registerfields: Use 64-bit bitfield for FIELD_DP64Joe Komlodi2021-09-011-1/+1
| | | | | | | | | | | If we have a field that's wider than 32-bits, we need a data type wide enough to be able to create the bitfield used to deposit the value. Signed-off-by: Joe Komlodi <joe.komlodi@xilinx.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 1626805903-162860-3-git-send-email-joe.komlodi@xilinx.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* hw/core/register: Add more 64-bit utilitiesJoe Komlodi2021-09-011-0/+8
| | | | | | | | | | | | We already have some utilities to handle 64-bit wide registers, so this just adds some more for: - Initializing 64-bit registers - Extracting and depositing to an array of 64-bit registers Signed-off-by: Joe Komlodi <joe.komlodi@xilinx.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 1626805903-162860-2-git-send-email-joe.komlodi@xilinx.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* hw/registerfields: Prefix local variables with underscore in macrosPhilippe Mathieu-Daudé2020-05-271-20/+20
| | | | | | | | | | | | | One can name a local variable holding a value as 'v', but it currently clashes with the registerfields macros. To save others to debug the same mistake, prefix the macro's local variables with an underscore. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20200510203457.10546-1-f4bug@amsat.org Message-Id: <20200510203457.10546-1-f4bug@amsat.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* hw/registerfields.h: Add 8bit and 16bit register macrosYoshinori Sato2020-03-191-0/+30
| | | | | | | | | | | | | | | Some RX peripheral use 8bit and 16bit registers. Add the 8bit and 16bit APIs. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200224141923.82118-4-ysato@users.sourceforge.jp> Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
* Use #include "..." for our own headers, <...> for othersMarkus Armbruster2018-02-091-1/+1
| | | | | | | | | | | | | | | | | | | | System headers should be included with <...>, our own headers with "...". Offenders tracked down with an ugly, brittle and probably buggy Perl script. Previous iteration was commit a9c94277f0. Delete inclusions of "string.h" and "strings.h" instead of fixing them to <string.h> and <strings.h>, because we always include these via osdep.h. Put the cleaned up system header includes first. While there, separate #include from file comment with exactly one blank line. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-2-armbru@redhat.com>
* hw/registerfields: add missing includePhilippe Mathieu-Daudé2017-12-181-0/+2
| | | | | | | | | | | | | | | | | | | This allows to use this header in qtests. This fixes: CC tests/test.o include/hw/registerfields.h:32:41: error: implicit declaration of function ‘MAKE_64BIT_MASK’ [-Werror=implicit-function-declaration] MAKE_64BIT_MASK(shift, length)}; ^ include/hw/registerfields.h:39:5: error: implicit declaration of function ‘extract64’; [-Werror=implicit-function-declaration] extract64((storage), R_ ## reg ## _ ## field ## _SHIFT, ^ Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* hw/registerfields: add 64-bit extract/deposit macrosPhilippe Mathieu-Daudé2017-12-181-0/+11
| | | | | | | | Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* hw/registerfields: fix a typo in the FIELD() documentationPhilippe Mathieu-Daudé2017-12-181-1/+1
| | | | | | | | Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* hw/registerfields.h: Pull FIELD etc macros out of hw/register.hPeter Maydell2017-01-271-0/+60
hw/register.h provides macros like FIELD which make it easy to define shift, mask and length constants for the fields within a register. Unfortunately register.h also includes a lot of other things, some of which will only compile in the softmmu build. Pull the FIELD macro and friends out into a separate header file, so they can be used in places like target/arm files which also get built in the user-only configs. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1484937883-1068-5-git-send-email-peter.maydell@linaro.org
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