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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jan 2022 20:41:42.8900 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ea53beee-c25b-436b-3414-08d9e1d56d7c X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT063.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR12MB1199 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Move adding of DRAM base and hole into a separate helper function. Signed-off-by: Yazen Ghannam --- Link: https://lore.kernel.org/r/20211028175728.121452-11-yazen.ghannam@amd.com v3->v4: * Include pr_debug() on failure. v2->v3: * Was patch 11 in v2. v1->v2: * Moved from arch/x86 to EDAC. drivers/edac/amd64_edac.c | 43 +++++++++++++++++++++++---------------- 1 file changed, 26 insertions(+), 17 deletions(-) diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 9c61e3fa231a..350204eadb27 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -1288,12 +1288,32 @@ static int denormalize_addr(struct addr_ctx *ctx) return 0; } -static int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr) +static int add_base_and_hole(struct addr_ctx *ctx) { - u64 dram_base_addr, dram_limit_addr, dram_hole_base; + u64 dram_base_addr = (ctx->reg_base_addr & GENMASK_ULL(31, 12)) << 16; + + /* Add dram base address */ + ctx->ret_addr += dram_base_addr; + + /* If legacy MMIO hole enabled */ + if (ctx->reg_base_addr & BIT(1)) { + u32 dram_hole_base; + + if (df_indirect_read_broadcast(ctx->nid, 0, 0x104, &dram_hole_base)) + return -EINVAL; + + dram_hole_base &= GENMASK(31, 24); + if (ctx->ret_addr >= dram_hole_base) + ctx->ret_addr += (BIT_ULL(32) - dram_hole_base); + } + + return 0; +} +static int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr) +{ + u64 dram_limit_addr; u8 hashed_bit; - u8 lgcy_mmio_hole_en; struct addr_ctx ctx; @@ -1330,22 +1350,11 @@ static int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr goto out_err; } - lgcy_mmio_hole_en = ctx.reg_base_addr & BIT(1); - dram_base_addr = (ctx.reg_base_addr & GENMASK_ULL(31, 12)) << 16; - dram_limit_addr = ((ctx.reg_limit_addr & GENMASK_ULL(31, 12)) << 16) | GENMASK_ULL(27, 0); - /* Add dram base address */ - ctx.ret_addr += dram_base_addr; - - /* If legacy MMIO hole enabled */ - if (lgcy_mmio_hole_en) { - if (df_indirect_read_broadcast(nid, 0, 0x104, &ctx.tmp)) - goto out_err; - - dram_hole_base = ctx.tmp & GENMASK(31, 24); - if (ctx.ret_addr >= dram_hole_base) - ctx.ret_addr += (BIT_ULL(32) - dram_hole_base); + if (add_base_and_hole(&ctx)) { + pr_debug("Failed to add DRAM base address and hole"); + goto out_err; } if (ctx.hash_enabled) { -- 2.25.1