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(localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id 0F85780521; Wed, 22 Jun 2022 01:08:47 -0400 (EDT) From: Alexey Kardashevskiy To: qemu-ppc@nongnu.org Cc: Alexey Kardashevskiy , qemu-devel@nongnu.org, Daniel Henrique Barboza , =?utf-8?q?C=C3=A9dric_Le_G?= =?utf-8?q?oater?= Subject: [PATCH qemu v2] ppc: Define SETFIELD for the ppc target Date: Wed, 22 Jun 2022 15:08:44 +1000 Message-Id: <20220622050844.1067391-1-aik@ozlabs.ru> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Received-SPF: pass client-ip=107.174.27.60; envelope-from=aik@ozlabs.ru; helo=ozlabs.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" It keeps repeating, move it to the header. This uses __builtin_ffsl() to allow using the macros in #define. This is not using the QEMU's FIELD macros as this would require changing all such macros found in skiboot (the PPC PowerNV firmware). Signed-off-by: Alexey Kardashevskiy Reviewed-by: Daniel Henrique Barboza --- Changes: v2: * preserved the comment about skiboot * copied the actual macros from skiboot: https://github.com/open-power/skiboot/blob/master/include/bitutils.h#L31 --- include/hw/pci-host/pnv_phb3_regs.h | 16 ---------------- target/ppc/cpu.h | 12 ++++++++++++ hw/intc/pnv_xive.c | 20 -------------------- hw/intc/pnv_xive2.c | 20 -------------------- hw/pci-host/pnv_phb4.c | 16 ---------------- 5 files changed, 12 insertions(+), 72 deletions(-) diff --git a/include/hw/pci-host/pnv_phb3_regs.h b/include/hw/pci-host/pnv_phb3_regs.h index a174ef1f7045..38f8ce9d7406 100644 --- a/include/hw/pci-host/pnv_phb3_regs.h +++ b/include/hw/pci-host/pnv_phb3_regs.h @@ -12,22 +12,6 @@ #include "qemu/host-utils.h" -/* - * QEMU version of the GETFIELD/SETFIELD macros - * - * These are common with the PnvXive model. - */ -static inline uint64_t GETFIELD(uint64_t mask, uint64_t word) -{ - return (word & mask) >> ctz64(mask); -} - -static inline uint64_t SETFIELD(uint64_t mask, uint64_t word, - uint64_t value) -{ - return (word & ~mask) | ((value << ctz64(mask)) & mask); -} - /* * PBCQ XSCOM registers */ diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 6d78078f379d..e45cc7a8c115 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -47,6 +47,18 @@ PPC_BIT32(bs)) #define PPC_BITMASK8(bs, be) ((PPC_BIT8(bs) - PPC_BIT8(be)) | PPC_BIT8(bs)) +/* + * QEMU version of the GETFIELD/SETFIELD macros + * + * It might be better to use the existing extract64() and + * deposit64() but this means that all the register definitions will + * change and become incompatible with the ones found in skiboot. + */ +#define MASK_TO_LSH(m) (__builtin_ffsl(m) - 1) +#define GETFIELD(m, v) (((v) & (m)) >> MASK_TO_LSH(m)) +#define SETFIELD(m, v, val) \ + (((v) & ~(m)) | ((((typeof(v))(val)) << MASK_TO_LSH(m)) & (m))) + /*****************************************************************************/ /* Exception vectors definitions */ enum { diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c index 1ce1d7b07d63..c7b75ed12ee0 100644 --- a/hw/intc/pnv_xive.c +++ b/hw/intc/pnv_xive.c @@ -66,26 +66,6 @@ static const XiveVstInfo vst_infos[] = { qemu_log_mask(LOG_GUEST_ERROR, "XIVE[%x] - " fmt "\n", \ (xive)->chip->chip_id, ## __VA_ARGS__); -/* - * QEMU version of the GETFIELD/SETFIELD macros - * - * TODO: It might be better to use the existing extract64() and - * deposit64() but this means that all the register definitions will - * change and become incompatible with the ones found in skiboot. - * - * Keep it as it is for now until we find a common ground. - */ -static inline uint64_t GETFIELD(uint64_t mask, uint64_t word) -{ - return (word & mask) >> ctz64(mask); -} - -static inline uint64_t SETFIELD(uint64_t mask, uint64_t word, - uint64_t value) -{ - return (word & ~mask) | ((value << ctz64(mask)) & mask); -} - /* * When PC_TCTXT_CHIPID_OVERRIDE is configured, the PC_TCTXT_CHIPID * field overrides the hardwired chip ID in the Powerbus operations diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c index f31c53c28dd2..f22ce5ca59ae 100644 --- a/hw/intc/pnv_xive2.c +++ b/hw/intc/pnv_xive2.c @@ -75,26 +75,6 @@ static const XiveVstInfo vst_infos[] = { qemu_log_mask(LOG_GUEST_ERROR, "XIVE[%x] - " fmt "\n", \ (xive)->chip->chip_id, ## __VA_ARGS__); -/* - * QEMU version of the GETFIELD/SETFIELD macros - * - * TODO: It might be better to use the existing extract64() and - * deposit64() but this means that all the register definitions will - * change and become incompatible with the ones found in skiboot. - * - * Keep it as it is for now until we find a common ground. - */ -static inline uint64_t GETFIELD(uint64_t mask, uint64_t word) -{ - return (word & mask) >> ctz64(mask); -} - -static inline uint64_t SETFIELD(uint64_t mask, uint64_t word, - uint64_t value) -{ - return (word & ~mask) | ((value << ctz64(mask)) & mask); -} - /* * TODO: Document block id override */ diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c index 6594016121a3..5d72c0c432b2 100644 --- a/hw/pci-host/pnv_phb4.c +++ b/hw/pci-host/pnv_phb4.c @@ -31,22 +31,6 @@ qemu_log_mask(LOG_GUEST_ERROR, "phb4_pec[%d:%d]: " fmt "\n", \ (pec)->chip_id, (pec)->index, ## __VA_ARGS__) -/* - * QEMU version of the GETFIELD/SETFIELD macros - * - * These are common with the PnvXive model. - */ -static inline uint64_t GETFIELD(uint64_t mask, uint64_t word) -{ - return (word & mask) >> ctz64(mask); -} - -static inline uint64_t SETFIELD(uint64_t mask, uint64_t word, - uint64_t value) -{ - return (word & ~mask) | ((value << ctz64(mask)) & mask); -} - static PCIDevice *pnv_phb4_find_cfg_dev(PnvPHB4 *phb) { PCIHostState *pci = PCI_HOST_BRIDGE(phb);