[PATCH 6.6 132/444] drm/amdkfd: Set per-process flags only once cik/vi

6.6-stable review patch. If anyone has any objections, please let me know.

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From: Harish Kasiviswanathan Harish.Kasiviswanathan@amd.com

[ Upstream commit 289e68503a4533b014f8447e2af28ad44c92c221 ]

Set per-process static sh_mem config only once during process initialization. Move all static changes from update_qpd() which is called each time a queue is created to set_cache_memory_policy() which is called once during process initialization.

set_cache_memory_policy() is currently defined only for cik and vi family. So this commit only focuses on these two. A separate commit will address other asics.

Signed-off-by: Harish Kasiviswanathan Harish.Kasiviswanathan@amd.com Reviewed-by: Amber Lin Amber.Lin@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../drm/amd/amdkfd/kfd_device_queue_manager.c | 39 +--------- .../amd/amdkfd/kfd_device_queue_manager_cik.c | 69 ++++++++++++------ .../amd/amdkfd/kfd_device_queue_manager_vi.c | 71 ++++++++++++------- 3 files changed, 94 insertions(+), 85 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 4d9a406925e18..fd4a75073364c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -2147,14 +2147,6 @@ static int destroy_queue_cpsch(struct device_queue_manager *dqm, return retval; }

-/* - * Low bits must be 0000/FFFF as required by HW, high bits must be 0 to - * stay in user mode. - */ -#define APE1_FIXED_BITS_MASK 0xFFFF80000000FFFFULL -/* APE1 limit is inclusive and 64K aligned. */ -#define APE1_LIMIT_ALIGNMENT 0xFFFF - static bool set_cache_memory_policy(struct device_queue_manager *dqm, struct qcm_process_device *qpd, enum cache_policy default_policy, @@ -2169,34 +2161,6 @@ static bool set_cache_memory_policy(struct device_queue_manager *dqm,

dqm_lock(dqm);

- if (alternate_aperture_size == 0) { - /* base > limit disables APE1 */ - qpd->sh_mem_ape1_base = 1; - qpd->sh_mem_ape1_limit = 0; - } else { - /* - * In FSA64, APE1_Base[63:0] = { 16{SH_MEM_APE1_BASE[31]}, - * SH_MEM_APE1_BASE[31:0], 0x0000 } - * APE1_Limit[63:0] = { 16{SH_MEM_APE1_LIMIT[31]}, - * SH_MEM_APE1_LIMIT[31:0], 0xFFFF } - * Verify that the base and size parameters can be - * represented in this format and convert them. - * Additionally restrict APE1 to user-mode addresses. - */ - - uint64_t base = (uintptr_t)alternate_aperture_base; - uint64_t limit = base + alternate_aperture_size - 1; - - if (limit <= base || (base & APE1_FIXED_BITS_MASK) != 0 || - (limit & APE1_FIXED_BITS_MASK) != APE1_LIMIT_ALIGNMENT) { - retval = false; - goto out; - } - - qpd->sh_mem_ape1_base = base >> 16; - qpd->sh_mem_ape1_limit = limit >> 16; - } - retval = dqm->asic_ops.set_cache_memory_policy( dqm, qpd, @@ -2205,6 +2169,9 @@ static bool set_cache_memory_policy(struct device_queue_manager *dqm, alternate_aperture_base, alternate_aperture_size);

+ if (retval) + goto out; + if ((dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) && (qpd->vmid != 0)) program_sh_mem_settings(dqm, qpd);

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c index d4d95c7f2e5d4..32bedef912b3b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c @@ -27,6 +27,14 @@ #include "oss/oss_2_4_sh_mask.h" #include "gca/gfx_7_2_sh_mask.h"

+/* + * Low bits must be 0000/FFFF as required by HW, high bits must be 0 to + * stay in user mode. + */ +#define APE1_FIXED_BITS_MASK 0xFFFF80000000FFFFULL +/* APE1 limit is inclusive and 64K aligned. */ +#define APE1_LIMIT_ALIGNMENT 0xFFFF + static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm, struct qcm_process_device *qpd, enum cache_policy default_policy, @@ -84,6 +92,36 @@ static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm, { uint32_t default_mtype; uint32_t ape1_mtype; + unsigned int temp; + bool retval = true; + + if (alternate_aperture_size == 0) { + /* base > limit disables APE1 */ + qpd->sh_mem_ape1_base = 1; + qpd->sh_mem_ape1_limit = 0; + } else { + /* + * In FSA64, APE1_Base[63:0] = { 16{SH_MEM_APE1_BASE[31]}, + * SH_MEM_APE1_BASE[31:0], 0x0000 } + * APE1_Limit[63:0] = { 16{SH_MEM_APE1_LIMIT[31]}, + * SH_MEM_APE1_LIMIT[31:0], 0xFFFF } + * Verify that the base and size parameters can be + * represented in this format and convert them. + * Additionally restrict APE1 to user-mode addresses. + */ + + uint64_t base = (uintptr_t)alternate_aperture_base; + uint64_t limit = base + alternate_aperture_size - 1; + + if (limit <= base || (base & APE1_FIXED_BITS_MASK) != 0 || + (limit & APE1_FIXED_BITS_MASK) != APE1_LIMIT_ALIGNMENT) { + retval = false; + goto out; + } + + qpd->sh_mem_ape1_base = base >> 16; + qpd->sh_mem_ape1_limit = limit >> 16; + }

default_mtype = (default_policy == cache_policy_coherent) ? MTYPE_NONCACHED : @@ -97,37 +135,22 @@ static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm, | ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) | DEFAULT_MTYPE(default_mtype) | APE1_MTYPE(ape1_mtype); - - return true; -} - -static int update_qpd_cik(struct device_queue_manager *dqm, - struct qcm_process_device *qpd) -{ - struct kfd_process_device *pdd; - unsigned int temp; - - pdd = qpd_to_pdd(qpd); - - /* check if sh_mem_config register already configured */ - if (qpd->sh_mem_config == 0) { - qpd->sh_mem_config = - ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) | - DEFAULT_MTYPE(MTYPE_NONCACHED) | - APE1_MTYPE(MTYPE_NONCACHED); - qpd->sh_mem_ape1_limit = 0; - qpd->sh_mem_ape1_base = 0; - } - /* On dGPU we're always in GPUVM64 addressing mode with 64-bit * aperture addresses. */ - temp = get_sh_mem_bases_nybble_64(pdd); + temp = get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd)); qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);

pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n", qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);

+out: + return retval; +} + +static int update_qpd_cik(struct device_queue_manager *dqm, + struct qcm_process_device *qpd) +{ return 0; }

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c index b291ee0fab943..320518f418903 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c @@ -27,6 +27,14 @@ #include "gca/gfx_8_0_sh_mask.h" #include "oss/oss_3_0_sh_mask.h"

+/* + * Low bits must be 0000/FFFF as required by HW, high bits must be 0 to + * stay in user mode. + */ +#define APE1_FIXED_BITS_MASK 0xFFFF80000000FFFFULL +/* APE1 limit is inclusive and 64K aligned. */ +#define APE1_LIMIT_ALIGNMENT 0xFFFF + static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm, struct qcm_process_device *qpd, enum cache_policy default_policy, @@ -85,6 +93,36 @@ static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm, { uint32_t default_mtype; uint32_t ape1_mtype; + unsigned int temp; + bool retval = true; + + if (alternate_aperture_size == 0) { + /* base > limit disables APE1 */ + qpd->sh_mem_ape1_base = 1; + qpd->sh_mem_ape1_limit = 0; + } else { + /* + * In FSA64, APE1_Base[63:0] = { 16{SH_MEM_APE1_BASE[31]}, + * SH_MEM_APE1_BASE[31:0], 0x0000 } + * APE1_Limit[63:0] = { 16{SH_MEM_APE1_LIMIT[31]}, + * SH_MEM_APE1_LIMIT[31:0], 0xFFFF } + * Verify that the base and size parameters can be + * represented in this format and convert them. + * Additionally restrict APE1 to user-mode addresses. + */ + + uint64_t base = (uintptr_t)alternate_aperture_base; + uint64_t limit = base + alternate_aperture_size - 1; + + if (limit <= base || (base & APE1_FIXED_BITS_MASK) != 0 || + (limit & APE1_FIXED_BITS_MASK) != APE1_LIMIT_ALIGNMENT) { + retval = false; + goto out; + } + + qpd->sh_mem_ape1_base = base >> 16; + qpd->sh_mem_ape1_limit = limit >> 16; + }

default_mtype = (default_policy == cache_policy_coherent) ? MTYPE_UC : @@ -100,40 +138,21 @@ static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm, default_mtype << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT | ape1_mtype << SH_MEM_CONFIG__APE1_MTYPE__SHIFT;

- return true; -} - -static int update_qpd_vi(struct device_queue_manager *dqm, - struct qcm_process_device *qpd) -{ - struct kfd_process_device *pdd; - unsigned int temp; - - pdd = qpd_to_pdd(qpd); - - /* check if sh_mem_config register already configured */ - if (qpd->sh_mem_config == 0) { - qpd->sh_mem_config = - SH_MEM_ALIGNMENT_MODE_UNALIGNED << - SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT | - MTYPE_UC << - SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT | - MTYPE_UC << - SH_MEM_CONFIG__APE1_MTYPE__SHIFT; - - qpd->sh_mem_ape1_limit = 0; - qpd->sh_mem_ape1_base = 0; - } - /* On dGPU we're always in GPUVM64 addressing mode with 64-bit * aperture addresses. */ - temp = get_sh_mem_bases_nybble_64(pdd); + temp = get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd)); qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);

pr_debug("sh_mem_bases nybble: 0x%X and register 0x%X\n", temp, qpd->sh_mem_bases); +out: + return retval; +}

+static int update_qpd_vi(struct device_queue_manager *dqm, + struct qcm_process_device *qpd) +{ return 0; }