From 59070fd9ccea58c3363d39f69c25fa98c71eb02f Mon Sep 17 00:00:00 2001 From: Asad Kamal Date: Fri, 28 Jul 2023 18:06:37 +0800 Subject: [PATCH] drm/amdgpu: Add pci usage to nbio v7.9 Add implementation to get pcie usage for nbio v7.9. Signed-off-by: Asad Kamal Reviewed-by: Lijo Lazar Reviewed-by: Shiwu Zhang Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | 63 ++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/soc15.c | 2 +- .../amd/include/asic_reg/nbio/nbio_7_9_0_sh_mask.h | 8 +++ 3 files changed, 72 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c index 781f986..9ea0723 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c @@ -35,6 +35,15 @@ /* Core 0 Port 0 counter */ #define smnPCIEP_NAK_COUNTER 0x1A340218 +#define smnPCIE_PERF_CNTL_TXCLK3 0x1A38021c +#define smnPCIE_PERF_CNTL_TXCLK7 0x1A380888 +#define smnPCIE_PERF_COUNT_CNTL 0x1A380200 +#define smnPCIE_PERF_COUNT0_TXCLK3 0x1A380220 +#define smnPCIE_PERF_COUNT0_TXCLK7 0x1A38088C +#define smnPCIE_PERF_COUNT0_UPVAL_TXCLK3 0x1A3808F8 +#define smnPCIE_PERF_COUNT0_UPVAL_TXCLK7 0x1A380918 + + static void nbio_v7_9_remap_hdp_registers(struct amdgpu_device *adev) { WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL, @@ -446,6 +455,59 @@ static u64 nbio_v7_9_get_pcie_replay_count(struct amdgpu_device *adev) return (nak_r + nak_g); } +static void nbio_v7_9_get_pcie_usage(struct amdgpu_device *adev, uint64_t *count0, + uint64_t *count1) +{ + uint32_t perfctrrx = 0; + uint32_t perfctrtx = 0; + + /* This reports 0 on APUs, so return to avoid writing/reading registers + * that may or may not be different from their GPU counterparts + */ + if (adev->flags & AMD_IS_APU) + return; + + /* Use TXCLK3 counter group for rx event */ + /* Use TXCLK7 counter group for tx event */ + /* Set the 2 events that we wish to watch, defined above */ + /* 40 is event# for received msgs */ + /* 2 is event# of posted requests sent */ + perfctrrx = REG_SET_FIELD(perfctrrx, PCIE_PERF_CNTL_TXCLK3, EVENT0_SEL, 40); + perfctrtx = REG_SET_FIELD(perfctrtx, PCIE_PERF_CNTL_TXCLK7, EVENT0_SEL, 2); + + /* Write to enable desired perf counters */ + WREG32_PCIE(smnPCIE_PERF_CNTL_TXCLK3, perfctrrx); + WREG32_PCIE(smnPCIE_PERF_CNTL_TXCLK7, perfctrtx); + + /* Zero out and enable SHADOW_WR + * Write 0x6: + * Bit 1 = Global Shadow wr(1) + * Bit 2 = Global counter reset enable(1) + */ + WREG32_PCIE(smnPCIE_PERF_COUNT_CNTL, 0x00000006); + + /* Enable Gloabl Counter + * Write 0x1: + * Bit 0 = Global Counter Enable(1) + */ + WREG32_PCIE(smnPCIE_PERF_COUNT_CNTL, 0x00000001); + + msleep(1000); + + /* Disable Global Counter, Reset and enable SHADOW_WR + * Write 0x6: + * Bit 1 = Global Shadow wr(1) + * Bit 2 = Global counter reset enable(1) + */ + WREG32_PCIE(smnPCIE_PERF_COUNT_CNTL, 0x00000006); + + /* Get the upper and lower count */ + *count0 = RREG32_PCIE(smnPCIE_PERF_COUNT0_TXCLK3) | + ((uint64_t)RREG32_PCIE(smnPCIE_PERF_COUNT0_UPVAL_TXCLK3) << 32); + *count1 = RREG32_PCIE(smnPCIE_PERF_COUNT0_TXCLK7) | + ((uint64_t)RREG32_PCIE(smnPCIE_PERF_COUNT0_UPVAL_TXCLK7) << 32); +} + const struct amdgpu_nbio_funcs nbio_v7_9_funcs = { .get_hdp_flush_req_offset = nbio_v7_9_get_hdp_flush_req_offset, .get_hdp_flush_done_offset = nbio_v7_9_get_hdp_flush_done_offset, @@ -470,6 +532,7 @@ const struct amdgpu_nbio_funcs nbio_v7_9_funcs = { .get_memory_partition_mode = nbio_v7_9_get_memory_partition_mode, .init_registers = nbio_v7_9_init_registers, .get_pcie_replay_count = nbio_v7_9_get_pcie_replay_count, + .get_pcie_usage = nbio_v7_9_get_pcie_usage, }; static void nbio_v7_9_query_ras_error_count(struct amdgpu_device *adev, diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index 158e611..c45721c 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -893,7 +893,7 @@ static const struct amdgpu_asic_funcs aqua_vanjaram_asic_funcs = .get_config_memsize = &soc15_get_config_memsize, .need_full_reset = &soc15_need_full_reset, .init_doorbell_index = &aqua_vanjaram_doorbell_index_init, - .get_pcie_usage = &vega20_get_pcie_usage, + .get_pcie_usage = &amdgpu_nbio_get_pcie_usage, .need_reset_on_init = &soc15_need_reset_on_init, .get_pcie_replay_count = &amdgpu_nbio_get_pcie_replay_count, .supports_baco = &soc15_supports_baco, diff --git a/drivers/gpu/drm/amd/include/asic_reg/nbio/nbio_7_9_0_sh_mask.h b/drivers/gpu/drm/amd/include/asic_reg/nbio/nbio_7_9_0_sh_mask.h index a22481e..e0c28c2 100644 --- a/drivers/gpu/drm/amd/include/asic_reg/nbio/nbio_7_9_0_sh_mask.h +++ b/drivers/gpu/drm/amd/include/asic_reg/nbio/nbio_7_9_0_sh_mask.h @@ -38896,5 +38896,13 @@ #define RCC_DEV0_EPF0_VF7_GFXMSIX_PBA__MSIX_PENDING_BITS_0_MASK 0x00000001L #define RCC_DEV0_EPF0_VF7_GFXMSIX_PBA__MSIX_PENDING_BITS_1_MASK 0x00000002L +//PCIE_PERF_CNTL_TXCLK3 +#define PCIE_PERF_CNTL_TXCLK3__EVENT0_SEL__SHIFT 0x0 +#define PCIE_PERF_CNTL_TXCLK3__EVENT0_SEL_MASK 0x000000FFL + +//PCIE_PERF_CNTL_TXCLK7 +#define PCIE_PERF_CNTL_TXCLK7__EVENT0_SEL__SHIFT 0x0 +#define PCIE_PERF_CNTL_TXCLK7__EVENT0_SEL_MASK 0x000000FFL + #endif -- 2.7.4